rework of context exceptions

This reverts commit 9739bd871e.

.gitignore

@@ -10,5 +10,6 @@ build/
 out/
 
 secret.gradle
+local.properties
 
 publishing.sh

.travis.yml

@@ -1,13 +1,27 @@
-language: java
+language: android
 install: true
 
 os: linux
 dist: trusty
 jdk: oraclejdk8
 
+android:
+  components:
+    - tools
+    - platform-tools
+    - build-tools-30.0.2
+    - android-30
+    - add-on
+    - extra
+
+before_script:
+  - yes | /usr/local/android-sdk/tools/bin/sdkmanager "build-tools;30.0.2"
+  - yes | /usr/local/android-sdk/tools/bin/sdkmanager "platforms;android-30"
+
 jobs:
   include:
     - stage: build
       script: ./gradlew build -s -x jvmTest -x jsIrTest -x jsIrBrowserTest -x jsIrNodeTest -x jsLegacyTest -x jsLegacyBrowserTest -x jsLegacyNodeTest
-    - state: test
-      script: ./gradlew allTests
+#    Tests are temporarily disabled on public travis due to the problems of launching
+#    - state: test
+#      script: ./gradlew allTests

CHANGELOG.md

@@ -1,5 +1,211 @@
 # Changelog
 
+## 0.4.15
+
+* `Coroutines`:
+    * `safely`:
+        * `SafelyExceptionHandlerKey` has been deprecated
+        * `SafelyExceptionHandler` has been deprecated
+        * `ContextSafelyExceptionHandlerKey` has been added
+        * `ContextSafelyExceptionHandler` has been added
+        * `safelyWithContextExceptionHandler` has been added
+
+## 0.4.14
+
+* `Versions`:
+    * `Kotlin`: `1.4.20` -> `1.4.21`
+    * `Ktor`: `1.4.3` -> `1.5.0`
+    * `Klock`: `2.0.1` -> `2.0.2`
+* `Coroutines`:
+    * Add global variable `defaultSafelyExceptionHandler`
+    * Add `SafelyExceptionHandlerKey` and `SafelyExceptionHandler` classes to be able to overwrite
+    `defaultSafelyExceptionHandler` using context of coroutine
+
+## 0.4.13
+
+* `Common`
+    * `Android`
+        * Add expand/collapse functionality for horizontal expand/collapse
+
+## 0.4.12
+
+* `Coroutines`
+    * `JVM`
+        * Update `launchSynchronously` signature
+* `Selector`
+    * Project created
+
+## 0.4.11
+
+* `Common`
+    * Add `clamp` function
+
+## 0.4.10
+
+* `Versions`:
+    * `Klock`: `2.0.0` -> `2.0.1`
+* `Repo`
+    * Repo `WriteStandardKeyValueRepo` got new method `unsetWithValues`
+
+## 0.4.9
+
+* `Versions`:
+    * `Ktor`: `1.4.2` -> `1.4.3`
+* `Coroutines`:
+    * `launchSynchronously` has been added in JVM
+* `Repo`
+    * `Common`
+        * In repos different usages of `BroadcastChannel`s has been replaced with `MutableSharedFlow`
+    * `Exposed`
+        * `asObject` open fun has been added in CRUD realization
+
+## 0.4.8
+
+* `Versions`:
+    * `Coroutines`: `1.4.1` -> `1.4.2`
+    * `UUID`: `0.2.2` -> `0.2.3`
+* `Pagination`
+    * Add `PaginatedIterable` and `PaginatedIterator`
+
+## 0.4.7
+
+* `Ktor`
+    * `Client`
+        * New class `UnifiedRequester`
+    * `Server`
+        * New class `UnifiedRouter`
+* `Repos`
+    * `Ktor`
+        * `Client`
+            * Rewriting of all clients on new `UnifiedRequester`
+        * `Server`
+            * Rewriting of all clients on new `UnifiedRouter`
+
+## 0.4.6
+
+* `Common`
+    * New annotation `Warning` has been added
+* `Pagination`
+    * `Common`
+        * `Pagination` got new extension: `Pagination#isFirstPage`
+* `Coroutines`:
+    * New extension `FlowCollector#invoke` has been added
+* `Repos`
+    * `Common`
+        * `JVM` (and `Android` since `Android API 26`):
+            * `FileStandardKeyValueRepo` has been added
+        * Add several `typealias`es for each type of repos
+
+## 0.4.5
+
+* `Android`
+    * `Alerts`
+        * `Common`
+            * Project has been created
+        * `RecyclerView`
+            * Project has been created
+* `Common`
+    * Annotation `PreviewFeature` has been added
+    * `Android`
+        * Added tools to work with visibility in more comfortable way
+        * Added tools to work with disabled/enabled state in more comfortable way
+        * Added tools to work with expanded/collapsed state in more comfortable way (in preview mode)
+
+## 0.4.4
+
+* `Versions`:
+    * `Klock`: `1.12.1` -> `2.0.0`
+* `Commons`:
+    * Update left items functionality to include work with `GridLayoutManager`
+* `Repos`:
+    * Add interface `VersionsRepo`
+        * Add default realization of `VersionsRepo` named `StandardVersionsRepo` which use `StandardVersionsRepoProxy`
+        to get access to some end-store
+        * Add default realization of `StandardVersionsRepoProxy` based on `KeyValue` repos
+        * Add realizations of `StandardVersionsRepoProxy` for exposed and android (`SQL` and `SharedPreferences`)
+    * `Commons`:
+        * In Android fully reworked transactions functions
+        * Now `DatabaseCoroutineContext` is a shortcut for `Dispatchers.IO`
+
+## 0.4.3
+
+* `Versions`:
+    * `Kotlin`: `1.4.10` -> `1.4.20`
+* `Common`:
+    * Two new extensions for Android:
+        * `Resources#getSp`
+        * `Resources#getDp`
+
+## 0.4.2
+
+* `Repos`:
+    * Add `WriteOneToManyKeyValueRepo#set` function and extensions
+
+## 0.4.1
+
+* `Repos`:
+    * Fixed error in `ExposedKeyValueRepo` related to negative size of shared flow
+    * Fixed error in `ExposedKeyValueRepo` related to avoiding of table initiation
+
+## 0.4.0
+
+* `Repos`:
+    * `ReadOneToManyKeyValueRepo` got `keys` method with value parameter
+        * All implementations inside of this library has been updated
+    * `ReadStandardKeyValueRepo` got `keys` method with value parameter
+        * All implementations inside of this library has been updated
+    * New extensions `withMapper`
+
+## 0.3.3
+
+* `Coroutines`:
+    * New extension `Flow<T>#plus`
+
+## 0.3.2
+
+* `Versions`:
+    * `Coroutines`: `1.4.1` -> `1.4.2`
+* `Repos`:
+    * `Common`:
+        * New inline function `mapper` for simplier creating of `MapperRepo` objects
+        * Extensions `withMapper` for keyvalue repos and onetomany repos
+
+## 0.3.1
+
+**ANDROID PACKAGES**
+
+* `Android`:
+    * `RecyclerView`:
+        * Library has been created
+* `Common`
+    * Now available package `dev.inmo:micro_utils.common-android`
+* `Coroutines`
+    * Now available package `dev.inmo:micro_utils.coroutines-android`
+* `Ktor`
+    * `Common`
+        * Now available package `dev.inmo:micro_utils.ktor.common-android`
+    * `Client`
+        * Now available package `dev.inmo:micro_utils.ktor.client-android`
+* `MimeTypes`
+    * Now available package `dev.inmo:micro_utils.mime_types-android`
+* `Pagination`
+    * `Common`
+        * Now available package `dev.inmo:micro_utils.pagination.common-android`
+    * `Ktor`
+        * `Common`
+            * Now available package `dev.inmo:micro_utils.pagination.ktor.common-android`
+* `Repos`
+    * `Common`
+        * Now available package `dev.inmo:micro_utils.repos.common-android`
+        * Now it is possible to use default realizations of repos abstractions natively on android
+    * `Inmemory`
+        * Now available package `dev.inmo:micro_utils.repos.inmemory-android`
+    * `Ktor`
+        * `Common`
+            * Now available package `dev.inmo:micro_utils.repos.ktor.common-android`
+        * `Common`
+            * Now available package `dev.inmo:micro_utils.repos.ktor.client-android`
+
 ## 0.3.0
 
 All deprecations has been removed
@@ -165,4 +371,4 @@ All deprecations has been removed
 
 ## 0.1.0
 
-Inited :)
+Inited :)

README.md

@@ -1 +1,36 @@
-# MicroUtils
+# MicroUtils
+
+This is a library with collection of tools for working in Kotlin environment. First of all, this library collection is oriented to use next technologies:
+
+* [`Kotlin Coroutines`](https://github.com/Kotlin/kotlinx.coroutines)
+* [`Kotlin Serialization`](https://github.com/Kotlin/kotlinx.serialization)
+* [`Kotlin Exposed`](https://github.com/JetBrains/Exposed)
+* [`Ktor`](https://ktor.io)
+
+<details>
+  <summary> <b>Android environment</b> </summary>
+
+You always can look at the <a href="https://github.com/InsanusMokrassar/MicroUtils/blob/master/gradle.properties#L24-L34">properties file</a> to get information about current project dependencies, compile and build tools for `Android` target.
+
+</details>
+
+## Projects
+
+* `common` contains common tools for platform which usually are absent out-of-the-box when you starting project
+* `selector` contains tools to use `Selector` interface with things like `RecyclerView` in android or other selection needs
+* `coroutines` is a module for `Kotlin Coroutines` with different things like subscribing on flows (`onEach` + `launchIn` shortcut :) )
+* `ktor` is a set of modules for `client`s and `server`s
+* `mime_types` is NOT lightweight set of `MimeType`s with a lot of different objected and serializable (with `Kotlin Serialization`) mime types
+* `pagination` is a complex of modules (explanation in [Complex modules structure](#complex-modules-structure) section) for lightweight pagination
+* `repos` is a complex of modules (explanation in [Complex modules structure](#complex-modules-structure) section) for `KeyValue`/`OneToMany`/`CRUD` repos created to be able to exclude some heavy dependencies when you need some simple and lightweight typical repositories
+
+## Complex modules structure
+
+Most of complex modules are built with next hierarchy:
+
+* `common` submodule for `API` things which are common for all platforms
+* `exposed` submodule contains realizations for exposed tables
+* `ktor` submodule is usually unavailable directly, because it contains its own submodules for clients and servers
+    * `common` part contains routes which are common for clients and servers
+    * `client` submodule contains clients which are usually using `UnifiedRequester` to make requests using routes from `ktor/common` module and some internal logic of requests
+    * `server` submodule (in most cases `JVM`-only) contains some extensions for `Route` instances which usually will give opportunity to proxy internet requests from `ktor/client` realization to some proxy object

_config.yml

@@ -0,0 +1 @@
+theme: jekyll-theme-cayman

android/alerts/common/build.gradle

@@ -0,0 +1,17 @@
+plugins {
+    id "org.jetbrains.kotlin.multiplatform"
+    id "org.jetbrains.kotlin.plugin.serialization"
+    id "com.android.library"
+}
+
+apply from: "$mppAndroidProjectPresetPath"
+
+kotlin {
+    sourceSets {
+        androidMain {
+            dependencies {
+                api "androidx.appcompat:appcompat-resources:$appcompat_version"
+            }
+        }
+    }
+}

android/alerts/common/src/main/AndroidManifest.xml

@@ -0,0 +1 @@
+<manifest package="dev.inmo.micro_utils.android.alerts.common"/>

android/alerts/common/src/main/kotlin/dev/inmo/micro_utils/android/alerts/common/AlertDialog.kt

@@ -0,0 +1,55 @@
+@file:Suppress("NOTHING_TO_INLINE", "unused")
+
+package dev.inmo.micro_utils.android.alerts.common
+
+import android.app.AlertDialog
+import android.content.Context
+import android.content.DialogInterface
+
+typealias AlertDialogCallback = (DialogInterface) -> Unit
+
+inline fun Context.createAlertDialogTemplate(
+    title: String? = null,
+    positivePair: Pair<String, AlertDialogCallback?>? = null,
+    neutralPair: Pair<String, AlertDialogCallback?>? = null,
+    negativePair: Pair<String, AlertDialogCallback?>? = null
+): AlertDialog.Builder {
+    val builder = AlertDialog.Builder(this)
+
+    title ?.let {
+        builder.setTitle(title)
+    }
+
+    positivePair ?. let {
+        builder.setPositiveButton(it.first) { di, _ -> it.second ?. invoke(di) }
+    }
+    negativePair ?. let {
+        builder.setNegativeButton(it.first) { di, _ -> it.second ?. invoke(di) }
+    }
+    neutralPair ?. let {
+        builder.setNeutralButton(it.first) { di, _ -> it.second ?. invoke(di) }
+    }
+
+    return builder
+}
+
+inline fun Context.createAlertDialogTemplateWithResources(
+    title: Int? = null,
+    positivePair: Pair<Int, AlertDialogCallback?>? = null,
+    neutralPair: Pair<Int, AlertDialogCallback?>? = null,
+    negativePair: Pair<Int, AlertDialogCallback?>? = null
+): AlertDialog.Builder = createAlertDialogTemplate(
+    title ?.let { getString(it) },
+    positivePair ?.let { getString(it.first) to it.second },
+    neutralPair ?.let { getString(it.first) to it.second },
+    negativePair ?.let { getString(it.first) to it.second }
+)
+
+inline fun AlertDialog.setDismissChecker(noinline checker: () -> Boolean) : AlertDialog {
+    setOnDismissListener {
+        if (!checker()) {
+            show()
+        }
+    }
+    return this
+}

android/alerts/common/src/main/kotlin/dev/inmo/micro_utils/android/alerts/common/CustomAlertDialog.kt

@@ -0,0 +1,38 @@
+@file:Suppress("NOTHING_TO_INLINE", "unused")
+
+package dev.inmo.micro_utils.android.alerts.common
+
+import android.app.AlertDialog
+import android.content.Context
+import android.view.View
+
+inline fun <T: View> Context.createCustomViewAlertDialog(
+    title: String? = null,
+    positivePair: Pair<String, AlertDialogCallback?>? = null,
+    neutralPair: Pair<String, AlertDialogCallback?>? = null,
+    negativePair: Pair<String, AlertDialogCallback?>? = null,
+    show: Boolean = true,
+    viewCreator: (Context) -> T
+): AlertDialog = createAlertDialogTemplate(
+    title, positivePair, neutralPair, negativePair
+).apply {
+    setView(viewCreator(this@createCustomViewAlertDialog))
+}.create().apply {
+    if (show) show()
+}
+
+inline fun <T: View> Context.createCustomViewAlertDialogWithResources(
+    title: Int? = null,
+    positivePair: Pair<Int, AlertDialogCallback?>? = null,
+    neutralPair: Pair<Int, AlertDialogCallback?>? = null,
+    negativePair: Pair<Int, AlertDialogCallback?>? = null,
+    show: Boolean = true,
+    viewCreator: (Context) -> T
+): AlertDialog = createCustomViewAlertDialog(
+    title ?.let { getString(it) },
+    positivePair ?.let { getString(it.first) to it.second },
+    neutralPair ?.let { getString(it.first) to it.second },
+    negativePair ?.let { getString(it.first) to it.second },
+    show,
+    viewCreator
+)

android/alerts/common/src/main/kotlin/dev/inmo/micro_utils/android/alerts/common/SimpleTextAlert.kt

@@ -0,0 +1,45 @@
+@file:Suppress("NOTHING_TO_INLINE", "unused")
+
+package dev.inmo.micro_utils.android.alerts.common
+
+import android.app.AlertDialog
+import android.content.Context
+import androidx.annotation.StringRes
+
+inline fun Context.createSimpleTextAlertDialog(
+    text: String,
+    title: String? = null,
+    positivePair: Pair<String, AlertDialogCallback?>? = null,
+    neutralPair: Pair<String, AlertDialogCallback?>? = null,
+    negativePair: Pair<String, AlertDialogCallback?>? = null,
+    show: Boolean = true
+): AlertDialog = createAlertDialogTemplate(
+    title,
+    positivePair,
+    neutralPair,
+    negativePair
+).apply {
+    setMessage(text)
+}.create().apply {
+    if (show) {
+        show()
+    }
+}
+
+inline fun Context.createSimpleTextAlertDialog(
+    @StringRes
+    text: Int,
+    @StringRes
+    title: Int? = null,
+    positivePair: Pair<Int, AlertDialogCallback?>? = null,
+    neutralPair: Pair<Int, AlertDialogCallback?>? = null,
+    negativePair: Pair<Int, AlertDialogCallback?>? = null,
+    show: Boolean = true
+): AlertDialog = createSimpleTextAlertDialog(
+    getString(text),
+    title ?.let { getString(it) },
+    positivePair ?.let { getString(it.first) to it.second },
+    neutralPair ?.let { getString(it.first) to it.second },
+    negativePair ?.let { getString(it.first) to it.second },
+    show
+)

android/alerts/recyclerview/build.gradle

@@ -0,0 +1,18 @@
+plugins {
+    id "org.jetbrains.kotlin.multiplatform"
+    id "org.jetbrains.kotlin.plugin.serialization"
+    id "com.android.library"
+}
+
+apply from: "$mppAndroidProjectPresetPath"
+
+kotlin {
+    sourceSets {
+        commonMain {
+            dependencies {
+                api internalProject("micro_utils.android.alerts.common")
+                api internalProject("micro_utils.android.recyclerview")
+            }
+        }
+    }
+}

android/alerts/recyclerview/src/main/AndroidManifest.xml

@@ -0,0 +1 @@
+<manifest package="dev.inmo.micro_utils.android.alerts.recyclerview"/>

android/alerts/recyclerview/src/main/kotlin/dev/inmo/micro_utils/android/alerts/recyclerview/ActionsAlerts.kt

@@ -0,0 +1,65 @@
+@file:Suppress("unused")
+
+package dev.inmo.micro_utils.android.alerts.recyclerview
+
+import android.app.AlertDialog
+import android.content.Context
+import android.content.DialogInterface
+import android.view.ViewGroup
+import android.widget.TextView
+import dev.inmo.micro_utils.android.alerts.common.AlertDialogCallback
+import dev.inmo.micro_utils.android.recyclerview.*
+
+data class AlertAction(
+    val title: String,
+    val callback: (DialogInterface) -> Unit
+)
+
+private class ActionViewHolder(
+    container: ViewGroup, dialogInterfaceGetter: () -> DialogInterface
+) : AbstractStandardViewHolder<AlertAction>(container, android.R.layout.simple_list_item_1) {
+    private lateinit var action: AlertAction
+    private val textView: TextView
+        get() = itemView.findViewById(android.R.id.text1)
+
+    init {
+        itemView.setOnClickListener {
+            action.callback(dialogInterfaceGetter())
+        }
+    }
+
+    override fun onBind(item: AlertAction) {
+        action = item
+        textView.text = item.title
+    }
+}
+
+private class ActionsRecyclerViewAdapter(
+    data: List<AlertAction>,
+    private val dialogInterfaceGetter: () -> DialogInterface
+) : RecyclerViewAdapter<AlertAction>(data) {
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): AbstractViewHolder<AlertAction> = ActionViewHolder(
+        parent, dialogInterfaceGetter
+    )
+}
+
+fun Context.createActionsAlertDialog(
+    actions: List<AlertAction>,
+    title: Int? = null,
+    positivePair: Pair<Int, AlertDialogCallback?>? = null,
+    neutralPair: Pair<Int, AlertDialogCallback?>? = null,
+    negativePair: Pair<Int, AlertDialogCallback?>? = null,
+    show: Boolean = true
+): AlertDialog {
+    lateinit var dialogInterface: DialogInterface
+
+    return createRecyclerViewDialog(
+        title, positivePair, neutralPair, negativePair, show
+    ) {
+        ActionsRecyclerViewAdapter(
+            actions
+        ) {
+            dialogInterface
+        }
+    }.also { dialogInterface = it }
+}

android/alerts/recyclerview/src/main/kotlin/dev/inmo/micro_utils/android/alerts/recyclerview/RecyclerViewDialog.kt

@@ -0,0 +1,43 @@
+package dev.inmo.micro_utils.android.alerts.recyclerview
+
+import android.app.AlertDialog
+import android.content.Context
+import android.widget.LinearLayout
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.RecyclerView
+import dev.inmo.micro_utils.android.alerts.common.AlertDialogCallback
+import dev.inmo.micro_utils.android.alerts.common.createCustomViewAlertDialogWithResources
+
+fun Context.createRecyclerViewDialog(
+    title: Int? = null,
+    positivePair: Pair<Int, AlertDialogCallback?>? = null,
+    neutralPair: Pair<Int, AlertDialogCallback?>? = null,
+    negativePair: Pair<Int, AlertDialogCallback?>? = null,
+    show: Boolean = true,
+    layoutManager: RecyclerView.LayoutManager = LinearLayoutManager(this),
+    marginOfRecyclerView: Int = 8, // dp
+    recyclerViewSetUp: RecyclerView.() -> Unit = {},
+    adapterFactory: () -> RecyclerView.Adapter<*>
+): AlertDialog {
+    val recyclerView = RecyclerView(this).apply {
+        layoutParams = LinearLayout.LayoutParams(
+            LinearLayout.LayoutParams.MATCH_PARENT,
+            LinearLayout.LayoutParams.WRAP_CONTENT
+        ).apply {
+            setMargins(marginOfRecyclerView, marginOfRecyclerView, marginOfRecyclerView, marginOfRecyclerView)
+        }
+        this.layoutManager = layoutManager
+        adapter = adapterFactory()
+        recyclerViewSetUp()
+    }
+
+    return createCustomViewAlertDialogWithResources(
+        title,
+        positivePair,
+        neutralPair,
+        negativePair,
+        show
+    ) {
+        recyclerView
+    }
+}

android/recyclerview/build.gradle

@@ -0,0 +1,22 @@
+plugins {
+    id "org.jetbrains.kotlin.multiplatform"
+    id "org.jetbrains.kotlin.plugin.serialization"
+    id "com.android.library"
+}
+
+apply from: "$mppAndroidProjectPresetPath"
+
+kotlin {
+    sourceSets {
+        commonMain {
+            dependencies {
+                api "org.jetbrains.kotlinx:kotlinx-coroutines-core:$kotlin_coroutines_version"
+            }
+        }
+        androidMain {
+            dependencies {
+                api "androidx.recyclerview:recyclerview:$androidx_recycler_version"
+            }
+        }
+    }
+}

android/recyclerview/src/main/AndroidManifest.xml

@@ -0,0 +1 @@
+<manifest package="dev.inmo.micro_utils.android.recyclerview"/>

android/recyclerview/src/main/kotlin/dev/inmo/micro_utils/android/recyclerview/AbstractStandardViewHolder.kt

@@ -0,0 +1,22 @@
+package dev.inmo.micro_utils.android.recyclerview
+
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+
+abstract class AbstractStandardViewHolder<T>(
+    inflater: LayoutInflater,
+    container: ViewGroup?,
+    viewId: Int,
+    onViewInflated: ((View) -> Unit)? = null
+) : AbstractViewHolder<T>(
+    inflater.inflate(viewId, container, false).also {
+        onViewInflated ?.invoke(it)
+    }
+) {
+    constructor(
+        container: ViewGroup,
+        viewId: Int,
+        onViewInflated: ((View) -> Unit)? = null
+    ) : this(LayoutInflater.from(container.context), container, viewId, onViewInflated)
+}

android/recyclerview/src/main/kotlin/dev/inmo/micro_utils/android/recyclerview/AbstractViewHolder.kt

@@ -0,0 +1,10 @@
+package dev.inmo.micro_utils.android.recyclerview
+
+import android.view.View
+import androidx.recyclerview.widget.RecyclerView
+
+abstract class AbstractViewHolder<in T>(
+    view: View
+) : RecyclerView.ViewHolder(view) {
+    abstract fun onBind(item: T)
+}

android/recyclerview/src/main/kotlin/dev/inmo/micro_utils/android/recyclerview/Divider.kt

@@ -0,0 +1,9 @@
+package dev.inmo.micro_utils.android.recyclerview
+
+import android.content.Context
+import android.widget.LinearLayout
+import androidx.recyclerview.widget.DividerItemDecoration
+
+val Context.recyclerViewItemsDecoration
+    get() = DividerItemDecoration(this, LinearLayout.VERTICAL)
+

android/recyclerview/src/main/kotlin/dev/inmo/micro_utils/android/recyclerview/LeftItems.kt

@@ -0,0 +1,53 @@
+package dev.inmo.micro_utils.android.recyclerview
+
+import androidx.recyclerview.widget.*
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.flow.*
+
+@Suppress("NOTHING_TO_INLINE")
+private inline fun RecyclerView.LayoutManager.findLastVisibleItemPositionGetter(): (() -> Int)? = when (this) {
+    is LinearLayoutManager -> ::findLastVisibleItemPosition
+    is GridLayoutManager -> ::findLastVisibleItemPosition
+    else -> null
+}
+
+fun RecyclerView.lastVisibleItemFlow(
+    completingScope: CoroutineScope
+): Flow<Int> {
+    val lastVisibleElementFun: () -> Int = layoutManager ?.findLastVisibleItemPositionGetter() ?: error("Currently supported only linear and grid layout manager")
+    val lastVisibleFlow = MutableStateFlow(lastVisibleElementFun())
+    addOnScrollListener(
+        object : RecyclerView.OnScrollListener() {
+            override fun onScrolled(recyclerView: RecyclerView, dx: Int, dy: Int) {
+                super.onScrolled(recyclerView, dx, dy)
+                lastVisibleFlow.value = lastVisibleElementFun()
+            }
+        }.also { scrollListener ->
+            lastVisibleFlow.onCompletion {
+                removeOnScrollListener(scrollListener)
+            }.launchIn(completingScope)
+        }
+    )
+    return lastVisibleFlow.asStateFlow()
+}
+
+inline fun Flow<Int>.mapLeftItems(
+    crossinline countGetter: () -> Int
+): Flow<Int> = map { countGetter() - it }
+
+inline fun Flow<Int>.mapRequireFilling(
+    minimalLeftItems: Int,
+    crossinline countGetter: () -> Int
+): Flow<Int> = mapLeftItems(countGetter).mapNotNull {
+    if (it < minimalLeftItems) {
+        it
+    } else {
+        null
+    }
+}
+
+inline fun RecyclerView.mapRequireFilling(
+    minimalLeftItems: Int,
+    completingScope: CoroutineScope,
+    crossinline countGetter: () -> Int
+): Flow<Int> = lastVisibleItemFlow(completingScope).mapRequireFilling(minimalLeftItems, countGetter)

android/recyclerview/src/main/kotlin/dev/inmo/micro_utils/android/recyclerview/RecyclerViewAdapter.kt

@@ -0,0 +1,68 @@
+package dev.inmo.micro_utils.android.recyclerview
+
+import android.view.View
+import androidx.recyclerview.widget.RecyclerView
+
+
+abstract class RecyclerViewAdapter<T>(
+    val data: List<T>
+): RecyclerView.Adapter<AbstractViewHolder<T>>() {
+    var emptyView: View? = null
+        set(value) {
+            field = value
+            checkEmpty()
+        }
+
+    init {
+        registerAdapterDataObserver(
+            object : RecyclerView.AdapterDataObserver() {
+                override fun onItemRangeChanged(positionStart: Int, itemCount: Int) {
+                    super.onItemRangeChanged(positionStart, itemCount)
+                    checkEmpty()
+                }
+
+                override fun onItemRangeChanged(positionStart: Int, itemCount: Int, payload: Any?) {
+                    super.onItemRangeChanged(positionStart, itemCount, payload)
+                    checkEmpty()
+                }
+
+                override fun onChanged() {
+                    super.onChanged()
+                    checkEmpty()
+                }
+
+                override fun onItemRangeRemoved(positionStart: Int, itemCount: Int) {
+                    super.onItemRangeRemoved(positionStart, itemCount)
+                    checkEmpty()
+                }
+
+                override fun onItemRangeMoved(fromPosition: Int, toPosition: Int, itemCount: Int) {
+                    super.onItemRangeMoved(fromPosition, toPosition, itemCount)
+                    checkEmpty()
+                }
+
+                override fun onItemRangeInserted(positionStart: Int, itemCount: Int) {
+                    super.onItemRangeInserted(positionStart, itemCount)
+                    checkEmpty()
+                }
+            }
+        )
+        checkEmpty()
+    }
+
+    override fun getItemCount(): Int = data.size
+
+    override fun onBindViewHolder(holder: AbstractViewHolder<T>, position: Int) {
+        holder.onBind(data[position])
+    }
+
+    private fun checkEmpty() {
+        emptyView ?. let {
+            if (data.isEmpty()) {
+                it.visibility = View.VISIBLE
+            } else {
+                it.visibility = View.GONE
+            }
+        }
+    }
+}

build.gradle

@@ -1,16 +1,19 @@
 buildscript {
     repositories {
-        mavenLocal()
         jcenter()
+        google()
         mavenCentral()
+        mavenLocal()
         maven { url "https://plugins.gradle.org/m2/" }
     }
 
     dependencies {
+        classpath 'com.android.tools.build:gradle:4.0.2'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
         classpath "org.jetbrains.kotlin:kotlin-serialization:$kotlin_version"
-        classpath "com.jfrog.bintray.gradle:gradle-bintray-plugin:$gradle_bintray_plugin_version"
+        classpath "com.getkeepsafe.dexcount:dexcount-gradle-plugin:$dexcount_version"
         classpath "com.github.breadmoirai:github-release:$github_release_plugin_version"
+        classpath "org.jetbrains.dokka:dokka-gradle-plugin:$dokka_version"
     }
 }
 
@@ -19,6 +22,7 @@ allprojects {
         mavenLocal()
         jcenter()
         mavenCentral()
+        google()
         maven { url "https://kotlin.bintray.com/kotlinx" }
     }
 }

build_and_publish.sh

@@ -12,4 +12,7 @@ function assert_success() {
 export RELEASE_MODE=true
 project="$1"
 
-assert_success ./gradlew clean "$project:clean" "$project:build" "$project:publishToMavenLocal" "$project:bintrayUpload"
+assert_success ./gradlew clean
+assert_success ./gradlew "$project:build"
+assert_success ./gradlew "$project:publishToMavenLocal"
+assert_success ./gradlew "$project:bintrayUpload"

common/build.gradle

@@ -1,6 +1,7 @@
 plugins {
     id "org.jetbrains.kotlin.multiplatform"
     id "org.jetbrains.kotlin.plugin.serialization"
+    id "com.android.library"
 }
 
 apply from: "$mppProjectWithSerializationPresetPath"

common/src/commonMain/kotlin/dev/inmo/micro_utils/common/Annotations.kt

@@ -0,0 +1,37 @@
+package dev.inmo.micro_utils.common
+
+@RequiresOptIn(
+    "It is possible, that behaviour of this thing will be changed or removed in future releases",
+    RequiresOptIn.Level.WARNING
+)
+@Target(
+    AnnotationTarget.CLASS,
+    AnnotationTarget.CONSTRUCTOR,
+    AnnotationTarget.FIELD,
+    AnnotationTarget.PROPERTY,
+    AnnotationTarget.PROPERTY_GETTER,
+    AnnotationTarget.PROPERTY_SETTER,
+    AnnotationTarget.FUNCTION,
+    AnnotationTarget.TYPE,
+    AnnotationTarget.TYPEALIAS,
+    AnnotationTarget.TYPE_PARAMETER
+)
+annotation class PreviewFeature
+
+@RequiresOptIn(
+    "This thing is marked as warned. See message of warn to get more info",
+    RequiresOptIn.Level.WARNING
+)
+@Target(
+    AnnotationTarget.CLASS,
+    AnnotationTarget.CONSTRUCTOR,
+    AnnotationTarget.FIELD,
+    AnnotationTarget.PROPERTY,
+    AnnotationTarget.PROPERTY_GETTER,
+    AnnotationTarget.PROPERTY_SETTER,
+    AnnotationTarget.FUNCTION,
+    AnnotationTarget.TYPE,
+    AnnotationTarget.TYPEALIAS,
+    AnnotationTarget.TYPE_PARAMETER
+)
+annotation class Warning(val message: String)

common/src/commonMain/kotlin/dev/inmo/micro_utils/common/Clamp.kt

@@ -0,0 +1,10 @@
+package dev.inmo.micro_utils.common
+
+@Suppress("NOTHING_TO_INLINE")
+inline fun <T : Comparable<T>> T.clamp(min: T, max: T): T {
+    return when {
+        this < min -> min
+        this > max -> max
+        else -> this
+    }
+}

common/src/main/AndroidManifest.xml

@@ -0,0 +1 @@
+<manifest package="dev.inmo.micro_utils.common"/>

common/src/main/kotlin/dev/inmo/micro_utils/common/Dimensions.kt

@@ -0,0 +1,13 @@
+@file:Suppress("NOTHING_TO_INLINE")
+
+package dev.inmo.micro_utils.common
+
+import android.content.res.Resources
+
+inline fun Resources.getSp(
+    resId: Int
+) = getDimension(resId) / displayMetrics.scaledDensity
+
+inline fun Resources.getDp(
+    resId: Int
+) = getDimension(resId) * displayMetrics.density

common/src/main/kotlin/dev/inmo/micro_utils/common/ExpandCollapse.kt

@@ -0,0 +1,140 @@
+package dev.inmo.micro_utils.common
+
+import android.view.View
+import android.view.ViewGroup
+import android.view.animation.Animation
+import android.view.animation.Transformation
+
+private fun View.performExpand(
+    duration: Long = 500,
+    targetWidth: Int = ViewGroup.LayoutParams.MATCH_PARENT,
+    targetHeight: Int = ViewGroup.LayoutParams.WRAP_CONTENT,
+    onMeasured: View.() -> Unit,
+    onPerformAnimation: View.(interpolatedTime: Float, t: Transformation?) -> Unit
+) {
+    measure(targetWidth, targetHeight)
+    onMeasured()
+    show()
+    val a: Animation = object : Animation() {
+        override fun applyTransformation(interpolatedTime: Float, t: Transformation?) {
+            super.applyTransformation(interpolatedTime, t)
+            onPerformAnimation(interpolatedTime, t)
+            requestLayout()
+        }
+
+        override fun willChangeBounds(): Boolean = true
+    }
+
+    a.duration = duration
+    startAnimation(a)
+}
+
+private fun View.performCollapse(
+    duration: Long = 500,
+    onPerformAnimation: View.(interpolatedTime: Float, t: Transformation?) -> Unit
+) {
+    val a: Animation = object : Animation() {
+        override fun applyTransformation(interpolatedTime: Float, t: Transformation?) {
+            if (interpolatedTime == 1f) {
+                gone()
+            } else {
+                onPerformAnimation(interpolatedTime, t)
+                requestLayout()
+            }
+        }
+
+        override fun willChangeBounds(): Boolean {
+            return true
+        }
+    }
+
+    a.duration = duration
+
+    startAnimation(a)
+}
+
+@PreviewFeature
+fun View.expand(
+    duration: Long = 500,
+    targetWidth: Int = ViewGroup.LayoutParams.MATCH_PARENT,
+    targetHeight: Int = ViewGroup.LayoutParams.WRAP_CONTENT
+) {
+    var measuredHeight = 0
+    performExpand(
+        duration,
+        targetWidth,
+        targetHeight,
+        {
+            measuredHeight = this.measuredHeight
+        }
+    ) { interpolatedTime, _ ->
+        layoutParams.height = if (interpolatedTime == 1f) targetHeight else (measuredHeight * interpolatedTime).toInt()
+    }
+}
+
+@PreviewFeature
+fun View.expandHorizontally(
+    duration: Long = 500,
+    targetWidth: Int = ViewGroup.LayoutParams.MATCH_PARENT,
+    targetHeight: Int = ViewGroup.LayoutParams.WRAP_CONTENT
+) {
+    var measuredWidth = 0
+    performExpand(
+        duration,
+        targetWidth,
+        targetHeight,
+        {
+            measuredWidth = this.measuredWidth
+        }
+    ) { interpolatedTime, _ ->
+        layoutParams.width = if (interpolatedTime == 1f) targetWidth else (measuredWidth * interpolatedTime).toInt()
+    }
+}
+
+@PreviewFeature
+fun View.collapse(duration: Long = 500) {
+    val initialHeight: Int = measuredHeight
+    performCollapse(duration) { interpolatedTime, _ ->
+        layoutParams.height = initialHeight - (initialHeight * interpolatedTime).toInt()
+    }
+}
+
+@PreviewFeature
+fun View.collapseHorizontally(duration: Long = 500) {
+    val initialWidth: Int = measuredWidth
+    performCollapse(duration) { interpolatedTime, _ ->
+        layoutParams.width = initialWidth - (initialWidth * interpolatedTime).toInt()
+    }
+}
+
+@PreviewFeature
+inline val View.isCollapsed
+    get() = visibility == View.GONE
+
+@PreviewFeature
+inline val View.isExpanded
+    get() = !isCollapsed
+
+/**
+ * @return true in case of expanding
+ */
+@PreviewFeature
+fun View.toggleExpandState(duration: Long = 500): Boolean = if (isCollapsed) {
+    expand(duration)
+    true
+} else {
+    collapse(duration)
+    false
+}
+
+/**
+ * @return true in case of expanding
+ */
+@PreviewFeature
+fun View.toggleExpandHorizontallyState(duration: Long = 500): Boolean = if (isCollapsed) {
+    expandHorizontally(duration)
+    true
+} else {
+    collapseHorizontally(duration)
+    false
+}

common/src/main/kotlin/dev/inmo/micro_utils/common/Mapping.kt

@@ -0,0 +1,7 @@
+package dev.inmo.micro_utils.common
+
+@Suppress("UNCHECKED_CAST", "SimplifiableCall")
+inline fun <T, R> Iterable<T>.mapNotNullA(transform: (T) -> R?): List<R> = map(transform).filter { it != null } as List<R>
+
+@Suppress("UNCHECKED_CAST", "SimplifiableCall")
+inline fun <T, R> Array<T>.mapNotNullA(mapper: (T) -> R?): List<R> = map(mapper).filter { it != null } as List<R>

common/src/main/kotlin/dev/inmo/micro_utils/common/ViewDisable.kt

@@ -0,0 +1,34 @@
+@file:Suppress("NOTHING_TO_INLINE", "unused")
+
+package dev.inmo.micro_utils.common
+
+import android.view.View
+import android.view.ViewGroup
+
+inline val View.enabled
+    get() = isEnabled
+
+inline val View.disabled
+    get() = !enabled
+
+fun View.disable() {
+    if (this is ViewGroup) {
+        (0 until childCount).forEach { getChildAt(it).disable() }
+    }
+    isEnabled = false
+}
+
+fun View.enable() {
+    if (this is ViewGroup) {
+        (0 until childCount).forEach { getChildAt(it).enable() }
+    }
+    isEnabled = true
+}
+
+fun View.toggleEnabledState(enabled: Boolean) {
+    if (enabled) {
+        enable()
+    } else {
+        disable()
+    }
+}

common/src/main/kotlin/dev/inmo/micro_utils/common/ViewVisibility.kt

@@ -0,0 +1,35 @@
+@file:Suppress("NOTHING_TO_INLINE", "unused")
+
+package dev.inmo.micro_utils.common
+
+import android.view.View
+
+inline val View.gone
+    get() = visibility == View.GONE
+inline fun View.gone() {
+    visibility = View.GONE
+}
+
+inline val View.hidden
+    get() = visibility == View.INVISIBLE
+inline fun View.hide() {
+    visibility = View.INVISIBLE
+}
+
+inline val View.shown
+    get() = visibility == View.VISIBLE
+inline fun View.show() {
+    visibility = View.VISIBLE
+}
+
+fun View.toggleVisibility(goneOnHide: Boolean = true) {
+    if (isShown) {
+        if (goneOnHide) {
+            gone()
+        } else {
+            hide()
+        }
+    } else {
+        show()
+    }
+}

coroutines/build.gradle

@@ -1,6 +1,7 @@
 plugins {
     id "org.jetbrains.kotlin.multiplatform"
     id "org.jetbrains.kotlin.plugin.serialization"
+    id "com.android.library"
 }
 
 apply from: "$mppProjectWithSerializationPresetPath"
@@ -12,5 +13,10 @@ kotlin {
                 api "org.jetbrains.kotlinx:kotlinx-coroutines-core:$kotlin_coroutines_version"
             }
         }
+        androidMain {
+            dependencies {
+                api "org.jetbrains.kotlinx:kotlinx-coroutines-android:$kotlin_coroutines_version"
+            }
+        }
     }
 }

coroutines/src/commonMain/kotlin/dev/inmo/micro_utils/coroutines/Actor.kt

@@ -19,7 +19,7 @@ fun <T> CoroutineScope.actor(
 
 inline fun <T> CoroutineScope.safeActor(
     channelCapacity: Int = Channel.UNLIMITED,
-    noinline onException: ExceptionHandler<Unit> = {},
+    noinline onException: ExceptionHandler<Unit> = defaultSafelyExceptionHandler,
     crossinline block: suspend (T) -> Unit
 ): Channel<T> = actor(
     channelCapacity

coroutines/src/commonMain/kotlin/dev/inmo/micro_utils/coroutines/FlowCollectorInvoking.kt

@@ -0,0 +1,5 @@
+package dev.inmo.micro_utils.coroutines
+
+import kotlinx.coroutines.flow.FlowCollector
+
+suspend inline operator fun <T> FlowCollector<T>.invoke(value: T) = emit(value)

coroutines/src/commonMain/kotlin/dev/inmo/micro_utils/coroutines/FlowSubscription.kt

@@ -16,7 +16,7 @@ inline fun <T> Flow<T>.subscribe(scope: CoroutineScope, noinline block: suspend
  */
 inline fun <T> Flow<T>.subscribeSafely(
     scope: CoroutineScope,
-    noinline onException: ExceptionHandler<Unit> = { throw it },
+    noinline onException: ExceptionHandler<Unit> = defaultSafelyExceptionHandler,
     noinline block: suspend (T) -> Unit
 ) = subscribe(scope) {
     safely(onException) {

coroutines/src/commonMain/kotlin/dev/inmo/micro_utils/coroutines/FlowsSum.kt

@@ -0,0 +1,8 @@
+@file:Suppress("NOTHING_TO_INLINE")
+
+package dev.inmo.micro_utils.coroutines
+
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.merge
+
+inline operator fun <T> Flow<T>.plus(other: Flow<T>) = merge(this, other)

coroutines/src/commonMain/kotlin/dev/inmo/micro_utils/coroutines/HandleSafely.kt

@@ -1,23 +1,123 @@
 package dev.inmo.micro_utils.coroutines
 
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.supervisorScope
-
+import kotlinx.coroutines.*
+import kotlin.coroutines.CoroutineContext
+import kotlin.coroutines.coroutineContext
 
 typealias ExceptionHandler<T> = suspend (Throwable) -> T
+
+/**
+ * This instance will be used in all calls of [safely] where exception handler has not been passed
+ */
+var defaultSafelyExceptionHandler: ExceptionHandler<Nothing> = { throw it }
+
+/**
+ * Key for [SafelyExceptionHandler] which can be used in [CoroutineContext.get] to get current default
+ * [SafelyExceptionHandler]
+ */
+@Deprecated("This method will be useless in future major update", ReplaceWith("ContextSafelyExceptionHandlerKey", "dev.inmo.micro_utils.coroutines.ContextSafelyExceptionHandler"))
+class SafelyExceptionHandlerKey<T> : CoroutineContext.Key<SafelyExceptionHandler<T>>
+
+/**
+ * Shortcut for creating instance of [SafelyExceptionHandlerKey]
+ */
+@Suppress("NOTHING_TO_INLINE")
+@Deprecated("This method will be useless in future major update", ReplaceWith("ContextSafelyExceptionHandlerKey", "dev.inmo.micro_utils.coroutines.ContextSafelyExceptionHandler"))
+inline fun <T> safelyExceptionHandlerKey() = SafelyExceptionHandlerKey<T>()
+
+/**
+ * Wrapper for [ExceptionHandler] which can be used in [CoroutineContext] to set local (for [CoroutineContext]) default
+ * [ExceptionHandler]. To get it use [CoroutineContext.get] with key [SafelyExceptionHandlerKey]
+ *
+ * @see SafelyExceptionHandlerKey
+ * @see ExceptionHandler
+ */
+@Deprecated("This method will be useless in future major update", ReplaceWith("ContextSafelyExceptionHandler", "dev.inmo.micro_utils.coroutines.ContextSafelyExceptionHandler"))
+class SafelyExceptionHandler<T>(
+    val handler: ExceptionHandler<T>
+) : CoroutineContext.Element {
+    override val key: CoroutineContext.Key<*> = safelyExceptionHandlerKey<T>()
+}
+
+/**
+ * This key can (and will) be used to get [ContextSafelyExceptionHandler] from [coroutineContext] of suspend functions
+ * and in [ContextSafelyExceptionHandler] for defining of its [CoroutineContext.Element.key]
+ *
+ * @see safelyWithContextExceptionHandler
+ * @see ContextSafelyExceptionHandler
+ */
+object ContextSafelyExceptionHandlerKey : CoroutineContext.Key<ContextSafelyExceptionHandler>
+
+/**
+ * [ExceptionHandler] wrapper which was created to make possible to use [handler] across all coroutines calls
+ *
+ * @see safelyWithContextExceptionHandler
+ * @see ContextSafelyExceptionHandlerKey
+ */
+class ContextSafelyExceptionHandler(
+    val handler: ExceptionHandler<Unit>
+) : CoroutineContext.Element {
+    override val key: CoroutineContext.Key<*>
+        get() = ContextSafelyExceptionHandlerKey
+}
+
+/**
+ * @return [ContextSafelyExceptionHandler] from [coroutineContext] by key [ContextSafelyExceptionHandlerKey] if
+ * exists
+ *
+ * @see ContextSafelyExceptionHandler
+ * @see ContextSafelyExceptionHandlerKey
+ */
+suspend inline fun contextSafelyExceptionHandler() = coroutineContext[ContextSafelyExceptionHandlerKey]
+
+/**
+ * This method will set new [coroutineContext] with [ContextSafelyExceptionHandler]. In case if [coroutineContext]
+ * already contains [ContextSafelyExceptionHandler], [ContextSafelyExceptionHandler.handler] will be used BEFORE
+ * [contextExceptionHandler] in case of exception.
+ *
+ * After all, will be called [withContext] method with created [ContextSafelyExceptionHandler] and block which will call
+ * [safely] method with [safelyExceptionHandler] as onException parameter and [block] as execution block
+ */
+suspend fun <T> safelyWithContextExceptionHandler(
+    contextExceptionHandler: ExceptionHandler<Unit>,
+    safelyExceptionHandler: ExceptionHandler<T> = defaultSafelyExceptionHandler,
+    block: suspend CoroutineScope.() -> T
+): T {
+    val contextSafelyExceptionHandler = contextSafelyExceptionHandler() ?.handler ?.let { oldHandler ->
+        ContextSafelyExceptionHandler {
+            oldHandler(it)
+            contextExceptionHandler(it)
+        }
+    } ?: ContextSafelyExceptionHandler(contextExceptionHandler)
+    return withContext(contextSafelyExceptionHandler) {
+        safely(safelyExceptionHandler, block)
+    }
+}
+
 /**
  * It will run [block] inside of [supervisorScope] to avoid problems with catching of exceptions
  *
+ * Priorities of [ExceptionHandler]s:
+ *
+ * * [onException] In case if custom (will be used anyway if not [defaultSafelyExceptionHandler])
+ * * [CoroutineContext.get] with [SafelyExceptionHandlerKey] as key
+ * * [defaultSafelyExceptionHandler]
+ *
  * @param [onException] Will be called when happen exception inside of [block]. By default will throw exception - this
  * exception will be available for catching
+ *
+ * @see defaultSafelyExceptionHandler
+ * @see safelyWithoutExceptions
+ * @see safelyWithContextExceptionHandler
  */
 suspend inline fun <T> safely(
-    noinline onException: ExceptionHandler<T> = { throw it },
+    noinline onException: ExceptionHandler<T> = defaultSafelyExceptionHandler,
     noinline block: suspend CoroutineScope.() -> T
 ): T {
     return try {
         supervisorScope(block)
     } catch (e: Throwable) {
+        coroutineContext[ContextSafelyExceptionHandlerKey] ?.handler ?.invoke(e)
         onException(e)
     }
 }

coroutines/src/jvmMain/kotlin/dev/inmo/micro_utils/coroutines/LaunchSynchronously.kt

@@ -0,0 +1,30 @@
+package dev.inmo.micro_utils.coroutines
+
+import kotlinx.coroutines.*
+
+fun <T> CoroutineScope.launchSynchronously(block: suspend CoroutineScope.() -> T): T {
+    var throwable: Throwable? = null
+    var result: T? = null
+    val objectToSynchronize = java.lang.Object()
+    val launchCallback = {
+        launch {
+            safely(
+                {
+                    throwable = it
+                }
+            ) {
+                result = block()
+            }
+            synchronized(objectToSynchronize) {
+                objectToSynchronize.notifyAll()
+            }
+        }
+    }
+    synchronized(objectToSynchronize) {
+        launchCallback()
+        objectToSynchronize.wait()
+    }
+    throw throwable ?: return result!!
+}
+
+fun <T> launchSynchronously(block: suspend CoroutineScope.() -> T): T = CoroutineScope(Dispatchers.Default).launchSynchronously(block)

coroutines/src/jvmTest/kotlin/dev/inmo/micro_utils/coroutines/HandleSafelyCoroutineContextTest.kt

@@ -0,0 +1,38 @@
+package dev.inmo.micro_utils.coroutines
+
+import kotlinx.coroutines.*
+import kotlin.test.Test
+
+class HandleSafelyCoroutineContextTest {
+    @Test
+    fun testHandleSafelyCoroutineContext() {
+        val scope = CoroutineScope(Dispatchers.Default)
+        var contextHandlerHappen = false
+        var localHandlerHappen = false
+        var defaultHandlerHappen = false
+        defaultSafelyExceptionHandler = {
+            defaultHandlerHappen = true
+            throw it
+        }
+        val contextHandler: ExceptionHandler<Unit> = {
+            contextHandlerHappen = true
+        }
+        val checkJob = scope.launch {
+            safelyWithContextExceptionHandler(contextHandler) {
+                safely(
+                    {
+                        localHandlerHappen = true
+                    }
+                ) {
+                    error("That must happen :)")
+                }
+                println(coroutineContext)
+                error("That must happen too:)")
+            }
+        }
+        launchSynchronously { checkJob.join() }
+        assert(contextHandlerHappen)
+        assert(localHandlerHappen)
+        assert(defaultHandlerHappen)
+    }
+}

coroutines/src/jvmTest/kotlin/dev/inmo/micro_utils/coroutines/LaunchSynchronouslyTest.kt

@@ -0,0 +1,13 @@
+package dev.inmo.micro_utils.coroutines
+
+import kotlin.test.Test
+import kotlin.test.assertEquals
+
+class LaunchSynchronouslyTest {
+    @Test
+    fun testRunInCoroutine() {
+        (0 .. 10000).forEach {
+            assertEquals(it, launchSynchronously { it })
+        }
+    }
+}

coroutines/src/main/AndroidManifest.xml

@@ -0,0 +1 @@
+<manifest package="dev.inmo.micro_utils.coroutines"/>

coroutines/src/main/kotlin/dev/inmo/micro_utils/coroutines/DoInUI.kt

@@ -0,0 +1,10 @@
+package dev.inmo.micro_utils.coroutines
+
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
+
+suspend inline fun <T> doInUI(noinline block: suspend CoroutineScope.() -> T) = withContext(
+    Dispatchers.Main,
+    block
+)

defaultAndroidSettings

@@ -0,0 +1,40 @@
+apply plugin: 'com.getkeepsafe.dexcount'
+
+android {
+    compileSdkVersion "$android_compileSdkVersion".toInteger()
+    buildToolsVersion "$android_buildToolsVersion"
+
+    defaultConfig {
+        minSdkVersion "$android_minSdkVersion".toInteger()
+        targetSdkVersion "$android_compileSdkVersion".toInteger()
+        versionCode "${android_code_version}".toInteger()
+        versionName "$version"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+        }
+        debug {
+            debuggable true
+        }
+    }
+
+    packagingOptions {
+        exclude 'META-INF/kotlinx-serialization-runtime.kotlin_module'
+        exclude 'META-INF/kotlinx-serialization-cbor.kotlin_module'
+        exclude 'META-INF/kotlinx-serialization-properties.kotlin_module'
+    }
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+
+    kotlinOptions {
+        jvmTarget = JavaVersion.VERSION_1_8.toString()
+    }
+
+    sourceSets {
+        main.java.srcDirs += 'src/main/kotlin'
+    }
+}

dokka/build.gradle

@@ -1,26 +1,14 @@
-buildscript {
-    repositories {
-        mavenLocal()
-        jcenter()
-        mavenCentral()
-    }
-
-    dependencies {
-        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
-        classpath "org.jetbrains.kotlin:kotlin-serialization:$kotlin_version"
-        classpath "org.jetbrains.dokka:dokka-gradle-plugin:$dokka_version"
-    }
-}
-
 plugins {
     id "org.jetbrains.kotlin.multiplatform"
     id "org.jetbrains.kotlin.plugin.serialization"
-    id "org.jetbrains.dokka" version "$dokka_version"
+    id "com.android.library"
+    id "org.jetbrains.dokka"
 }
 
 repositories {
     mavenLocal()
     jcenter()
+    google()
     mavenCentral()
 }
 
@@ -30,6 +18,7 @@ kotlin {
         browser()
         nodejs()
     }
+    android {}
 
     sourceSets {
         commonMain {
@@ -41,6 +30,57 @@ kotlin {
                         it != project
                         && it.hasProperty("kotlin")
                         && it.kotlin.sourceSets.any { it.name.contains("commonMain") }
+                        && it.kotlin.sourceSets.any { it.name.contains("jsMain") }
+                        && it.kotlin.sourceSets.any { it.name.contains("jvmMain") }
+                        && it.kotlin.sourceSets.any { it.name.contains("androidMain") }
+                    ) {
+                        api it
+                    }
+                }
+            }
+        }
+        jsMain {
+            dependencies {
+                implementation kotlin('stdlib')
+
+                project.parent.subprojects.forEach {
+                    if (
+                        it != project
+                        && it.hasProperty("kotlin")
+                        && it.kotlin.sourceSets.any { it.name.contains("commonMain") }
+                        && it.kotlin.sourceSets.any { it.name.contains("jsMain") }
+                    ) {
+                        api it
+                    }
+                }
+            }
+        }
+        jvmMain {
+            dependencies {
+                implementation kotlin('stdlib')
+
+                project.parent.subprojects.forEach {
+                    if (
+                        it != project
+                        && it.hasProperty("kotlin")
+                        && it.kotlin.sourceSets.any { it.name.contains("commonMain") }
+                        && it.kotlin.sourceSets.any { it.name.contains("jvmMain") }
+                    ) {
+                        api it
+                    }
+                }
+            }
+        }
+        androidMain {
+            dependencies {
+                implementation kotlin('stdlib')
+
+                project.parent.subprojects.forEach {
+                    if (
+                        it != project
+                        && it.hasProperty("kotlin")
+                        && it.kotlin.sourceSets.any { it.name.contains("commonMain") }
+                        && it.kotlin.sourceSets.any { it.name.contains("androidMain") }
                     ) {
                         api it
                     }
@@ -84,5 +124,11 @@ tasks.dokkaHtml {
         named("jvmMain") {
             sourceRoots.setFrom(findSourcesWithName("jvmMain", "commonMain"))
         }
+
+        named("androidMain") {
+            sourceRoots.setFrom(findSourcesWithName("androidMain", "commonMain"))
+        }
     }
 }
+
+apply from: "$defaultAndroidSettingsPresetPath"

dokka/gradle.properties

@@ -1,3 +0,0 @@
-dokka_version=1.4.0
-
-org.gradle.jvmargs=-Xmx1024m

dokka/src/main/AndroidManifest.xml

@@ -0,0 +1 @@
+<manifest package="dev.inmo.dokka"/>

extensions.gradle

@@ -10,17 +10,21 @@ allprojects {
         }
 
         internalProject = { name ->
-            if (releaseMode) {
-                "$group:$name:$version"
-            } else {
-                projectByName("$name")
-            }
+//            if (releaseMode) {
+//                "$group:$name:$version"
+//            } else {
+//                projectByName("$name")
+//            }
+            projectByName("$name")
         }
 
         releaseMode = (project.hasProperty('RELEASE_MODE') && project.property('RELEASE_MODE') == "true") || System.getenv('RELEASE_MODE') == "true"
 
         mppProjectWithSerializationPresetPath = "${rootProject.projectDir.absolutePath}/mppProjectWithSerialization"
         mppJavaProjectPresetPath = "${rootProject.projectDir.absolutePath}/mppJavaProject"
+        mppAndroidProjectPresetPath = "${rootProject.projectDir.absolutePath}/mppAndroidProject"
+
+        defaultAndroidSettingsPresetPath = "${rootProject.projectDir.absolutePath}/defaultAndroidSettings"
 
         publishGradlePath = "${rootProject.projectDir.absolutePath}/publish.gradle"
         publishMavenPath = "${rootProject.projectDir.absolutePath}/maven.publish.gradle"

gradle.properties

@@ -3,20 +3,42 @@ org.gradle.parallel=true
 kotlin.js.generate.externals=true
 kotlin.incremental=true
 kotlin.incremental.js=true
+android.useAndroidX=true
+android.enableJetifier=true
 
-kotlin_version=1.4.10
-kotlin_coroutines_version=1.4.1
+kotlin_version=1.4.21
+kotlin_coroutines_version=1.4.2
 kotlin_serialisation_core_version=1.0.1
 kotlin_exposed_version=0.28.1
 
-ktor_version=1.4.1
+ktor_version=1.5.0
 
-klockVersion=1.12.1
+klockVersion=2.0.2
 
-gradle_bintray_plugin_version=1.8.5
 github_release_plugin_version=2.2.12
 
-uuidVersion=0.2.2
+uuidVersion=0.2.3
+
+# ANDROID
+
+core_ktx_version=1.3.2
+androidx_recycler_version=1.1.0
+appcompat_version=1.2.0
+
+android_minSdkVersion=19
+android_compileSdkVersion=30
+android_buildToolsVersion=30.0.2
+dexcount_version=2.0.0
+junit_version=4.12
+test_ext_junit_version=1.1.2
+espresso_core=3.3.0
+
+# Dokka
+
+dokka_version=1.4.20
+
+# Project data
 
 group=dev.inmo
-version=0.3.0
+version=0.4.15
+android_code_version=19

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.7-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.7.1-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

ktor/client/build.gradle

@@ -1,6 +1,7 @@
 plugins {
     id "org.jetbrains.kotlin.multiplatform"
     id "org.jetbrains.kotlin.plugin.serialization"
+    id "com.android.library"
 }
 
 apply from: "$mppProjectWithSerializationPresetPath"

ktor/client/src/commonMain/kotlin/dev/inmo/micro_utils/ktor/client/FlowsWebsockets.kt

@@ -25,7 +25,7 @@ inline fun <T> HttpClient.createStandardWebsocketFlow(
         val producerScope = this@channelFlow
         do {
             val reconnect = try {
-                safely ({ throw it }) {
+                safely {
                     ws(correctedUrl) {
                         for (received in incoming) {
                             when (received) {
@@ -64,10 +64,11 @@ inline fun <T> HttpClient.createStandardWebsocketFlow(
 inline fun <T> HttpClient.createStandardWebsocketFlow(
     url: String,
     crossinline checkReconnection: (Throwable?) -> Boolean = { true },
-    deserializer: DeserializationStrategy<T>
+    deserializer: DeserializationStrategy<T>,
+    serialFormat: StandardKtorSerialFormat = standardKtorSerialFormat
 ) = createStandardWebsocketFlow(
     url,
     checkReconnection
 ) {
-    standardKtorSerialFormat.decodeDefault(deserializer, it)
+    serialFormat.decodeDefault(deserializer, it)
 }

ktor/client/src/commonMain/kotlin/dev/inmo/micro_utils/ktor/client/StandardHttpClientGetPost.kt

@@ -4,32 +4,61 @@ import dev.inmo.micro_utils.ktor.common.*
 import io.ktor.client.HttpClient
 import io.ktor.client.request.get
 import io.ktor.client.request.post
-import kotlinx.serialization.DeserializationStrategy
-import kotlinx.serialization.SerializationStrategy
+import kotlinx.serialization.*
 
 typealias BodyPair<T> = Pair<SerializationStrategy<T>, T>
 
+class UnifiedRequester(
+    private val client: HttpClient = HttpClient(),
+    private val serialFormat: StandardKtorSerialFormat = standardKtorSerialFormat
+) {
+    suspend fun <ResultType> uniget(
+        url: String,
+        resultDeserializer: DeserializationStrategy<ResultType>
+    ): ResultType = client.get<StandardKtorSerialInputData>(
+        url
+    ).let {
+        serialFormat.decodeDefault(resultDeserializer, it)
+    }
+
+
+    fun <T> encodeUrlQueryValue(
+        serializationStrategy: SerializationStrategy<T>,
+        value: T
+    ) = serialFormat.encodeHex(
+        serializationStrategy,
+        value
+    )
+
+    suspend fun <BodyType, ResultType> unipost(
+        url: String,
+        bodyInfo: BodyPair<BodyType>,
+        resultDeserializer: DeserializationStrategy<ResultType>
+    ) = client.post<StandardKtorSerialInputData>(url) {
+        body = serialFormat.encodeDefault(bodyInfo.first, bodyInfo.second)
+    }.let {
+        serialFormat.decodeDefault(resultDeserializer, it)
+    }
+
+    fun <T> createStandardWebsocketFlow(
+        url: String,
+        checkReconnection: (Throwable?) -> Boolean = { true },
+        deserializer: DeserializationStrategy<T>
+    ) = client.createStandardWebsocketFlow(url, checkReconnection, deserializer, serialFormat)
+}
+
+val defaultRequester = UnifiedRequester()
+
 suspend fun <ResultType> HttpClient.uniget(
     url: String,
     resultDeserializer: DeserializationStrategy<ResultType>
-) = get<StandardKtorSerialInputData>(
-    url
-).let {
-    standardKtorSerialFormat.decodeDefault(resultDeserializer, it)
-}
+) = defaultRequester.uniget(url, resultDeserializer)
 
 
-fun <T> SerializationStrategy<T>.encodeUrlQueryValue(value: T) = standardKtorSerialFormat.encodeHex(
-    this,
-    value
-)
+fun <T> SerializationStrategy<T>.encodeUrlQueryValue(value: T) = defaultRequester.encodeUrlQueryValue(this, value)
 
 suspend fun <BodyType, ResultType> HttpClient.unipost(
     url: String,
     bodyInfo: BodyPair<BodyType>,
     resultDeserializer: DeserializationStrategy<ResultType>
-) = post<StandardKtorSerialInputData>(url) {
-    body = standardKtorSerialFormat.encodeDefault(bodyInfo.first, bodyInfo.second)
-}.let {
-    standardKtorSerialFormat.decodeDefault(resultDeserializer, it)
-}
+) = defaultRequester.unipost(url, bodyInfo, resultDeserializer)

ktor/client/src/main/AndroidManifest.xml

@@ -0,0 +1 @@
+<manifest package="dev.inmo.micro_utils.ktor.client"/>

ktor/common/build.gradle

@@ -1,6 +1,7 @@
 plugins {
     id "org.jetbrains.kotlin.multiplatform"
     id "org.jetbrains.kotlin.plugin.serialization"
+    id "com.android.library"
 }
 
 apply from: "$mppProjectWithSerializationPresetPath"

ktor/common/src/commonMain/kotlin/dev/inmo/micro_utils/ktor/common/QueryParamsBuilder.kt

@@ -3,16 +3,28 @@ package dev.inmo.micro_utils.ktor.common
 typealias QueryParam = Pair<String, String?>
 typealias QueryParams = Map<String, String?>
 
+/**
+ * Create query part which includes key=value pairs separated with &
+ */
 val QueryParams.asUrlQuery: String
     get() = keys.joinToString("&") { "${it}${get(it) ?.let { value -> "=$value" }}" }
 
+/**
+ * Create query part which includes key=value pairs separated with &
+ */
 val List<QueryParam>.asUrlQuery: String
     get() = joinToString("&") { (key, value) -> "${key}${value ?.let { _ -> "=$value" }}" }
 
+/**
+ * Create query part which includes key=value pairs separated with & and attach to receiver
+ */
 fun String.includeQueryParams(
     queryParams: QueryParams
 ): String = "$this${if(queryParams.isNotEmpty()) "${if (contains("?")) "&" else "?"}${queryParams.asUrlQuery}" else ""}"
 
+/**
+ * Create query part which includes key=value pairs separated with & and attach to receiver
+ */
 fun String.includeQueryParams(
     queryParams: List<QueryParam>
 ): String = "$this${if (contains("?")) "&" else "?"}${queryParams.asUrlQuery}"

ktor/common/src/main/AndroidManifest.xml

@@ -0,0 +1 @@
+<manifest package="dev.inmo.micro_utils.ktor.common"/>

ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/ktor/server/FlowsWebsocket.kt

@@ -33,10 +33,11 @@ fun <T> Route.includeWebsocketHandling(
 fun <T> Route.includeWebsocketHandling(
     suburl: String,
     flow: Flow<T>,
-    serializer: SerializationStrategy<T>
+    serializer: SerializationStrategy<T>,
+    serialFormat: StandardKtorSerialFormat = standardKtorSerialFormat
 ) = includeWebsocketHandling(
     suburl,
     flow
 ) {
-    standardKtorSerialFormat.encodeDefault(serializer, it)
+    serialFormat.encodeDefault(serializer, it)
 }

ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/ktor/server/ServerRoutingShortcuts.kt

@@ -3,12 +3,87 @@ package dev.inmo.micro_utils.ktor.server
 import dev.inmo.micro_utils.coroutines.safely
 import dev.inmo.micro_utils.ktor.common.*
 import io.ktor.application.ApplicationCall
+import io.ktor.application.call
+import io.ktor.http.ContentType
 import io.ktor.http.HttpStatusCode
 import io.ktor.request.receive
 import io.ktor.response.respond
 import io.ktor.response.respondBytes
-import kotlinx.serialization.DeserializationStrategy
-import kotlinx.serialization.SerializationStrategy
+import io.ktor.routing.Route
+import io.ktor.util.pipeline.PipelineContext
+import kotlinx.coroutines.flow.Flow
+import kotlinx.serialization.*
+
+class UnifiedRouter(
+    private val serialFormat: StandardKtorSerialFormat = standardKtorSerialFormat,
+    private val serialFormatContentType: ContentType = standardKtorSerialFormatContentType
+) {
+    fun <T> Route.includeWebsocketHandling(
+        suburl: String,
+        flow: Flow<T>,
+        serializer: SerializationStrategy<T>
+    ) = includeWebsocketHandling(suburl, flow, serializer, serialFormat)
+
+    suspend fun <T> PipelineContext<*, ApplicationCall>.unianswer(
+        answerSerializer: SerializationStrategy<T>,
+        answer: T
+    ) {
+        call.respondBytes (
+            serialFormat.encodeDefault(answerSerializer, answer),
+            serialFormatContentType
+        )
+    }
+
+    suspend fun <T> PipelineContext<*, ApplicationCall>.uniload(
+        deserializer: DeserializationStrategy<T>
+    ) = safely {
+        serialFormat.decodeDefault(
+            deserializer,
+            call.receive()
+        )
+    }
+
+    suspend fun PipelineContext<*, ApplicationCall>.getParameterOrSendError(
+        field: String
+    ) = call.parameters[field].also {
+        if (it == null) {
+            call.respond(HttpStatusCode.BadRequest, "Request must contains $field")
+        }
+    }
+
+    fun PipelineContext<*, ApplicationCall>.getQueryParameter(
+        field: String
+    ) = call.request.queryParameters[field]
+
+    suspend fun PipelineContext<*, ApplicationCall>.getQueryParameterOrSendError(
+        field: String
+    ) = getQueryParameter(field).also {
+        if (it == null) {
+            call.respond(HttpStatusCode.BadRequest, "Request query parameters must contains $field")
+        }
+    }
+
+    fun <T> PipelineContext<*, ApplicationCall>.decodeUrlQueryValue(
+        field: String,
+        deserializer: DeserializationStrategy<T>
+    ) = getQueryParameter(field) ?.let {
+        serialFormat.decodeHex(
+            deserializer,
+            it
+        )
+    }
+
+    suspend fun <T> PipelineContext<*, ApplicationCall>.decodeUrlQueryValueOrSendError(
+        field: String,
+        deserializer: DeserializationStrategy<T>
+    ) = decodeUrlQueryValue(field, deserializer).also {
+        if (it == null) {
+            call.respond(HttpStatusCode.BadRequest, "Request query parameters must contains $field")
+        }
+    }
+}
+
+val defaultUnifiedRouter = UnifiedRouter()
 
 suspend fun <T> ApplicationCall.unianswer(
     answerSerializer: SerializationStrategy<T>,

maven.publish.gradle

@@ -1,60 +0,0 @@
-apply plugin: 'maven-publish'
-
-task javadocsJar(type: Jar) {
-    classifier = 'javadoc'
-}
-
-afterEvaluate {
-    project.publishing.publications.all {
-        // rename artifacts
-        groupId "${project.group}"
-        if (it.name.contains('kotlinMultiplatform')) {
-            artifactId = "${project.name}"
-        } else {
-            artifactId = "${project.name}-$name"
-        }
-    }
-}
-
-publishing {
-    publications.all {
-        artifact javadocsJar
-
-        pom {
-            description = ""
-            name = "${project.name}"
-            url = "https://git.inmo.dev/InsanusMokrassar/MicroUtils_mirror"
-
-            scm {
-                developerConnection = "scm:git:[fetch=]ssh://git@git.inmo.dev:8322/InsanusMokrassar/MicroUtils_mirror.git[push=]ssh://git@git.inmo.dev:8322/InsanusMokrassar/MicroUtils_mirror.git"
-                url = "ssh://git@git.inmo.dev:8322/InsanusMokrassar/MicroUtils_mirror.git"
-            }
-
-            developers {
-                
-                    developer {
-                        id = "InsanusMokrassar"
-                        name = "Aleksei Ovsiannikov"
-                        email = "ovsyannikov.alexey95@gmail.com"
-                    }
-                
-
-                    developer {
-                        id = "000Sanya"
-                        name = "Syrov Aleksandr"
-                        email = "000sanya.000sanya@gmail.com"
-                    }
-                
-            }
-
-            licenses {
-                
-                    license {
-                        name = "Apache Software License 2.0"
-                        url = "https://git.inmo.dev/InsanusMokrassar/MicroUtils_mirror/src/master/LICENSE"
-                    }
-                
-            }
-        }
-    }
-}

mime_types/build.gradle

@@ -1,6 +1,7 @@
 plugins {
     id "org.jetbrains.kotlin.multiplatform"
     id "org.jetbrains.kotlin.plugin.serialization"
+    id "com.android.library"
 }
 
 apply from: "$mppProjectWithSerializationPresetPath"

mime_types/src/main/AndroidManifest.xml

@@ -0,0 +1 @@
+<manifest package="dev.inmo.micro_utils.mime_types"/>

mppAndroidProject

@@ -0,0 +1,26 @@
+project.version = "$version"
+project.group = "$group"
+
+apply from: "$publishGradlePath"
+
+kotlin {
+    android {
+        publishAllLibraryVariants()
+    }
+
+    sourceSets {
+        commonMain {
+            dependencies {
+                implementation kotlin('stdlib')
+            }
+        }
+        commonTest {
+            dependencies {
+                implementation kotlin('test-common')
+                implementation kotlin('test-annotations-common')
+            }
+        }
+    }
+}
+
+apply from: "$defaultAndroidSettingsPresetPath"

mppProjectWithSerialization

@@ -9,6 +9,9 @@ kotlin {
         browser()
         nodejs()
     }
+    android {
+        publishAllLibraryVariants()
+    }
 
     sourceSets {
         commonMain {
@@ -34,5 +37,14 @@ kotlin {
                 implementation kotlin('test-junit')
             }
         }
+        androidTest {
+            dependencies {
+                implementation kotlin('test-junit')
+                implementation "androidx.test.ext:junit:$test_ext_junit_version"
+                implementation "androidx.test.espresso:espresso-core:$espresso_core"
+            }
+        }
     }
 }
+
+apply from: "$defaultAndroidSettingsPresetPath"

pagination/common/build.gradle

@@ -1,6 +1,7 @@
 plugins {
     id "org.jetbrains.kotlin.multiplatform"
     id "org.jetbrains.kotlin.plugin.serialization"
+    id "com.android.library"
 }
 
 apply from: "$mppProjectWithSerializationPresetPath"

pagination/common/src/commonMain/kotlin/dev/inmo/micro_utils/pagination/Pagination.kt

@@ -22,6 +22,12 @@ interface Pagination {
     val size: Int
 }
 
+/**
+ * Logical shortcut for comparison that page is 0
+ */
+inline val Pagination.isFirstPage
+    get() = page == 0
+
 /**
  * First number in index of objects. It can be used as offset for databases or other data sources
  */

pagination/common/src/commonMain/kotlin/dev/inmo/micro_utils/pagination/utils/PaginatedIterable.kt

@@ -0,0 +1,41 @@
+package dev.inmo.micro_utils.pagination.utils
+
+import dev.inmo.micro_utils.pagination.*
+
+class PaginatedIterator<T>(
+    pageSize: Int,
+    private val countGetter: () -> Long,
+    private val paginationResultGetter: Pagination.() -> PaginationResult<T>
+) : Iterator<T> {
+    private var pagination = FirstPagePagination(pageSize)
+    private val currentStack = mutableListOf<T>()
+    override fun hasNext(): Boolean = currentStack.isNotEmpty() || (countGetter() < pagination.lastIndexExclusive)
+
+    override fun next(): T {
+        if (currentStack.isEmpty()) {
+            val resultPagination = paginationResultGetter.invoke(pagination)
+            currentStack.addAll(resultPagination.results)
+            require(currentStack.isNotEmpty()) { "There is no elements left" }
+            pagination = resultPagination.nextPage()
+        }
+        return currentStack.removeFirst()
+    }
+}
+
+class PaginatedIterable<T>(
+    private val pageSize: Int,
+    private val countGetter: () -> Long,
+    private val paginationResultGetter: Pagination.() -> PaginationResult<T>
+) : Iterable<T> {
+    override fun iterator(): Iterator<T> = PaginatedIterator(pageSize, countGetter, paginationResultGetter)
+}
+
+/**
+ * Will make iterable using incoming [countGetter] and [paginationResultGetter]
+ */
+@Suppress("NOTHING_TO_INLINE")
+inline fun <T> makeIterable(
+    noinline countGetter: () -> Long,
+    pageSize: Int = defaultMediumPageSize,
+    noinline paginationResultGetter: Pagination.() -> PaginationResult<T>
+): Iterable<T> = PaginatedIterable(pageSize, countGetter, paginationResultGetter)

pagination/common/src/main/AndroidManifest.xml

@@ -0,0 +1 @@
+<manifest package="dev.inmo.micro_utils.pagination.common"/>

pagination/ktor/common/build.gradle

@@ -1,6 +1,7 @@
 plugins {
     id "org.jetbrains.kotlin.multiplatform"
     id "org.jetbrains.kotlin.plugin.serialization"
+    id "com.android.library"
 }
 
 apply from: "$mppProjectWithSerializationPresetPath"

pagination/ktor/common/src/main/AndroidManifest.xml

@@ -0,0 +1 @@
+<manifest package="dev.inmo.micro_utils.pagination.ktor.common"/>

pubconf.kpsb

@@ -1 +1 @@
-{"bintrayConfig":{"repo":"MicroUtils","packageName":"${project.name}","packageVcs":"https://github.com/InsanusMokrassar/MicroUtils","autoPublish":true,"overridePublish":true},"licenses":[{"id":"Apache-2.0","title":"Apache Software License 2.0","url":"https://git.inmo.dev/InsanusMokrassar/MicroUtils_mirror/src/master/LICENSE"}],"mavenConfig":{"name":"${project.name}","description":"","url":"https://git.inmo.dev/InsanusMokrassar/MicroUtils_mirror","vcsUrl":"ssh://git@git.inmo.dev:8322/InsanusMokrassar/MicroUtils_mirror.git","developers":[{"id":"InsanusMokrassar","name":"Aleksei Ovsiannikov","eMail":"ovsyannikov.alexey95@gmail.com"},{"id":"000Sanya","name":"Syrov Aleksandr","eMail":"000sanya.000sanya@gmail.com"}]},"type":"Multiplatform"}
+{"bintrayConfig":{"repo":"MicroUtils","packageName":"${project.name}","packageVcs":"https://github.com/InsanusMokrassar/MicroUtils","autoPublish":true,"overridePublish":true},"licenses":[{"id":"Apache-2.0","title":"Apache Software License 2.0","url":"https://git.inmo.dev/InsanusMokrassar/MicroUtils_mirror/src/master/LICENSE"}],"mavenConfig":{"name":"${project.name}","description":"","url":"https://git.inmo.dev/InsanusMokrassar/MicroUtils_mirror","vcsUrl":"ssh://git@git.inmo.dev:8322/InsanusMokrassar/MicroUtils_mirror.git","developers":[{"id":"InsanusMokrassar","name":"Aleksei Ovsiannikov","eMail":"ovsyannikov.alexey95@gmail.com"},{"id":"000Sanya","name":"Syrov Aleksandr","eMail":"000sanya.000sanya@gmail.com"}]}}

publish.gradle

@@ -1,59 +1,76 @@
-apply plugin: 'com.jfrog.bintray'
+apply plugin: 'maven-publish'
 
-apply from: "$publishMavenPath"
-
-bintray {
-    user = project.hasProperty('BINTRAY_USER') ? project.property('BINTRAY_USER') : System.getenv('BINTRAY_USER')
-    key = project.hasProperty('BINTRAY_KEY') ? project.property('BINTRAY_KEY') : System.getenv('BINTRAY_KEY')
-    filesSpec {
-        from "${buildDir}/publications/"
-        eachFile {
-            String directorySubname = it.getFile().parentFile.name
-            if (it.getName() == "module.json") {
-                if (directorySubname == "kotlinMultiplatform") {
-                    it.setPath("${project.name}/${project.version}/${project.name}-${project.version}.module")
-                } else {
-                    it.setPath("${project.name}-${directorySubname}/${project.version}/${project.name}-${directorySubname}-${project.version}.module")
-                }
-            } else {
-                if (directorySubname == "kotlinMultiplatform" && it.getName() == "pom-default.xml") {
-                    it.setPath("${project.name}/${project.version}/${project.name}-${project.version}.pom")
-                } else {
-                    it.exclude()
-                }
-            }
-        }
-        into "${project.group}".replace(".", "/")
-    }
-    
-    publish = true
-    override = true
-    
-    pkg {
-        repo = "MicroUtils"
-        name = "${project.name}"
-        vcsUrl = "https://github.com/InsanusMokrassar/MicroUtils"
-        licenses = ["Apache-2.0"]
-        version {
-            name = "${project.version}"
-            released = new Date()
-            vcsTag = "${project.version}"
-            gpg {
-                sign = true
-                passphrase = project.hasProperty('signing.gnupg.passphrase') ? project.property('signing.gnupg.passphrase') : System.getenv('signing.gnupg.passphrase')
-            }
-        }
-    }
+task javadocsJar(type: Jar) {
+    classifier = 'javadoc'
+}
+task sourceJar (type : Jar) {
+    classifier = 'sources'
 }
 
-bintrayUpload.doFirst {
-    publications = publishing.publications.collect {
+afterEvaluate {
+    project.publishing.publications.all {
+        // rename artifacts
+        groupId "${project.group}"
         if (it.name.contains('kotlinMultiplatform')) {
-            null
+            artifactId = "${project.name}"
+            artifact sourceJar
         } else {
-            it.name
+            artifactId = "${project.name}-$name"
         }
-    } - null
+    }
 }
 
-bintrayUpload.dependsOn publishToMavenLocal
+publishing {
+    publications.all {
+        artifact javadocsJar
+
+        pom {
+            description = ""
+            name = "${project.name}"
+            url = "https://git.inmo.dev/InsanusMokrassar/MicroUtils_mirror"
+
+            scm {
+                developerConnection = "scm:git:[fetch=]ssh://git@git.inmo.dev:8322/InsanusMokrassar/MicroUtils_mirror.git[push=]ssh://git@git.inmo.dev:8322/InsanusMokrassar/MicroUtils_mirror.git"
+                url = "ssh://git@git.inmo.dev:8322/InsanusMokrassar/MicroUtils_mirror.git"
+            }
+
+            developers {
+                
+                    developer {
+                        id = "InsanusMokrassar"
+                        name = "Aleksei Ovsiannikov"
+                        email = "ovsyannikov.alexey95@gmail.com"
+                    }
+                
+
+                    developer {
+                        id = "000Sanya"
+                        name = "Syrov Aleksandr"
+                        email = "000sanya.000sanya@gmail.com"
+                    }
+                
+            }
+
+            licenses {
+                
+                    license {
+                        name = "Apache Software License 2.0"
+                        url = "https://git.inmo.dev/InsanusMokrassar/MicroUtils_mirror/src/master/LICENSE"
+                    }
+                
+            }
+        }
+        
+        repositories {
+            maven {
+                name = "bintray"
+                url = uri("https://api.bintray.com/maven/${project.hasProperty('BINTRAY_USER') ? project.property('BINTRAY_USER') : System.getenv('BINTRAY_USER')}/MicroUtils/${project.name}/;publish=1;override=1")
+                credentials {
+                    username = project.hasProperty('BINTRAY_USER') ? project.property('BINTRAY_USER') : System.getenv('BINTRAY_USER')
+                    password = project.hasProperty('BINTRAY_KEY') ? project.property('BINTRAY_KEY') : System.getenv('BINTRAY_KEY')
+                }
+            }
+        }
+        
+    }
+}

repos/common/build.gradle

@@ -1,6 +1,7 @@
 plugins {
     id "org.jetbrains.kotlin.multiplatform"
     id "org.jetbrains.kotlin.plugin.serialization"
+    id "com.android.library"
 }
 
 apply from: "$mppProjectWithSerializationPresetPath"
@@ -15,5 +16,18 @@ kotlin {
                 api "com.benasher44:uuid:$uuidVersion"
             }
         }
+
+        jvmMain {
+            dependencies {
+                api internalProject("micro_utils.common")
+            }
+        }
+        androidMain {
+            dependencies {
+                api "androidx.core:core-ktx:$core_ktx_version"
+                api internalProject("micro_utils.common")
+                api internalProject("micro_utils.coroutines")
+            }
+        }
     }
 }

repos/common/src/commonMain/kotlin/dev/inmo/micro_utils/repos/MapperRepo.kt

@@ -6,4 +6,16 @@ interface MapperRepo<FromKey, FromValue, ToKey, ToValue> {
 
     suspend fun ToKey.toInnerKey() = this as FromKey
     suspend fun ToValue.toInnerValue() = this as FromValue
-}
+}
+
+inline fun <reified FromKey, reified FromValue, reified ToKey, reified ToValue> mapper(
+    crossinline keyFromToTo: suspend FromKey.() -> ToKey = { this as ToKey },
+    crossinline valueFromToTo: suspend FromValue.() -> ToValue = { this as ToValue },
+    crossinline keyToToFrom: suspend ToKey.() -> FromKey = { this as FromKey },
+    crossinline valueToToFrom: suspend ToValue.() -> FromValue = { this as FromValue },
+) = object : MapperRepo<FromKey, FromValue, ToKey, ToValue> {
+    override suspend fun FromKey.toOutKey(): ToKey = keyFromToTo()
+    override suspend fun FromValue.toOutValue(): ToValue = valueFromToTo()
+    override suspend fun ToKey.toInnerKey(): FromKey = keyToToFrom()
+    override suspend fun ToValue.toInnerValue(): FromValue = valueToToFrom()
+}

repos/common/src/commonMain/kotlin/dev/inmo/micro_utils/repos/OneToManyKeyValueRepo.kt

@@ -6,6 +6,7 @@ import kotlinx.coroutines.flow.Flow
 interface ReadOneToManyKeyValueRepo<Key, Value> : Repo {
     suspend fun get(k: Key, pagination: Pagination, reversed: Boolean = false): PaginationResult<Value>
     suspend fun keys(pagination: Pagination, reversed: Boolean = false): PaginationResult<Key>
+    suspend fun keys(v: Value, pagination: Pagination, reversed: Boolean = false): PaginationResult<Key>
     suspend fun contains(k: Key): Boolean
     suspend fun contains(k: Key, v: Value): Boolean
     suspend fun count(k: Key): Long
@@ -35,6 +36,7 @@ interface ReadOneToManyKeyValueRepo<Key, Value> : Repo {
         }
     }
 }
+typealias ReadKeyValuesRepo<Key,Value> = ReadOneToManyKeyValueRepo<Key, Value>
 
 interface WriteOneToManyKeyValueRepo<Key, Value> : Repo {
     val onNewValue: Flow<Pair<Key, Value>>
@@ -46,7 +48,13 @@ interface WriteOneToManyKeyValueRepo<Key, Value> : Repo {
     suspend fun remove(toRemove: Map<Key, List<Value>>)
 
     suspend fun clear(k: Key)
+
+    suspend fun set(toSet: Map<Key, List<Value>>) {
+        toSet.keys.forEach { key -> clear(key) }
+        add(toSet)
+    }
 }
+typealias WriteKeyValuesRepo<Key,Value> = WriteOneToManyKeyValueRepo<Key, Value>
 
 suspend inline fun <Key, Value, REPO : WriteOneToManyKeyValueRepo<Key, Value>> REPO.add(
     keysAndValues: List<Pair<Key, List<Value>>>
@@ -64,7 +72,24 @@ suspend inline fun <Key, Value> WriteOneToManyKeyValueRepo<Key, Value>.add(
     k: Key, vararg v: Value
 ) = add(k, v.toList())
 
+suspend inline fun <Key, Value, REPO : WriteOneToManyKeyValueRepo<Key, Value>> REPO.set(
+    keysAndValues: List<Pair<Key, List<Value>>>
+) = set(keysAndValues.toMap())
+
+suspend inline fun <Key, Value, REPO : WriteOneToManyKeyValueRepo<Key, Value>> REPO.set(
+    vararg keysAndValues: Pair<Key, List<Value>>
+) = set(keysAndValues.toMap())
+
+suspend inline fun <Key, Value> WriteOneToManyKeyValueRepo<Key, Value>.set(
+    k: Key, v: List<Value>
+) = set(mapOf(k to v))
+
+suspend inline fun <Key, Value> WriteOneToManyKeyValueRepo<Key, Value>.set(
+    k: Key, vararg v: Value
+) = set(k, v.toList())
+
 interface OneToManyKeyValueRepo<Key, Value> : ReadOneToManyKeyValueRepo<Key, Value>, WriteOneToManyKeyValueRepo<Key, Value>
+typealias KeyValuesRepo<Key,Value> = OneToManyKeyValueRepo<Key, Value>
 
 suspend inline fun <Key, Value> WriteOneToManyKeyValueRepo<Key, Value>.remove(
     keysAndValues: List<Pair<Key, List<Value>>>

repos/common/src/commonMain/kotlin/dev/inmo/micro_utils/repos/StandartCRUDRepo.kt

@@ -10,6 +10,7 @@ interface ReadStandardCRUDRepo<ObjectType, IdType> : Repo {
     suspend fun contains(id: IdType): Boolean
     suspend fun count(): Long
 }
+typealias ReadCRUDRepo<ObjectType, IdType> = ReadStandardCRUDRepo<ObjectType, IdType>
 
 typealias UpdatedValuePair<IdType, ValueType> = Pair<IdType, ValueType>
 val <IdType> UpdatedValuePair<IdType, *>.id
@@ -27,6 +28,7 @@ interface WriteStandardCRUDRepo<ObjectType, IdType, InputValueType> : Repo {
     suspend fun update(values: List<UpdatedValuePair<IdType, InputValueType>>): List<ObjectType>
     suspend fun deleteById(ids: List<IdType>)
 }
+typealias WriteCRUDRepo<ObjectType, IdType, InputValueType> = WriteStandardCRUDRepo<ObjectType, IdType, InputValueType>
 
 suspend fun <ObjectType, IdType, InputValueType> WriteStandardCRUDRepo<ObjectType, IdType, InputValueType>.create(
     vararg values: InputValueType
@@ -39,4 +41,5 @@ suspend fun <ObjectType, IdType, InputValueType> WriteStandardCRUDRepo<ObjectTyp
 ) = deleteById(ids.toList())
 
 interface StandardCRUDRepo<ObjectType, IdType, InputValueType> : ReadStandardCRUDRepo<ObjectType, IdType>,
-    WriteStandardCRUDRepo<ObjectType, IdType, InputValueType>
+    WriteStandardCRUDRepo<ObjectType, IdType, InputValueType>
+typealias CRUDRepo<ObjectType, IdType, InputValueType> = StandardCRUDRepo<ObjectType, IdType, InputValueType>

repos/common/src/commonMain/kotlin/dev/inmo/micro_utils/repos/StandartKeyValueRepo.kt

@@ -1,16 +1,17 @@
 package dev.inmo.micro_utils.repos
 
-import dev.inmo.micro_utils.pagination.Pagination
-import dev.inmo.micro_utils.pagination.PaginationResult
+import dev.inmo.micro_utils.pagination.*
 import kotlinx.coroutines.flow.Flow
 
 interface ReadStandardKeyValueRepo<Key, Value> : Repo {
     suspend fun get(k: Key): Value?
     suspend fun values(pagination: Pagination, reversed: Boolean = false): PaginationResult<Value>
     suspend fun keys(pagination: Pagination, reversed: Boolean = false): PaginationResult<Key>
+    suspend fun keys(v: Value, pagination: Pagination, reversed: Boolean = false): PaginationResult<Key>
     suspend fun contains(key: Key): Boolean
     suspend fun count(): Long
 }
+typealias ReadKeyValueRepo<Key,Value> = ReadStandardKeyValueRepo<Key, Value>
 
 interface WriteStandardKeyValueRepo<Key, Value> : Repo {
     val onNewValue: Flow<Pair<Key, Value>>
@@ -18,7 +19,9 @@ interface WriteStandardKeyValueRepo<Key, Value> : Repo {
 
     suspend fun set(toSet: Map<Key, Value>)
     suspend fun unset(toUnset: List<Key>)
+    suspend fun unsetWithValues(toUnset: List<Value>)
 }
+typealias WriteKeyValueRepo<Key,Value> = WriteStandardKeyValueRepo<Key, Value>
 
 suspend inline fun <Key, Value> WriteStandardKeyValueRepo<Key, Value>.set(
     vararg toSet: Pair<Key, Value>
@@ -32,4 +35,17 @@ suspend inline fun <Key, Value> WriteStandardKeyValueRepo<Key, Value>.unset(
     vararg k: Key
 ) = unset(k.toList())
 
-interface StandardKeyValueRepo<Key, Value> : ReadStandardKeyValueRepo<Key, Value>, WriteStandardKeyValueRepo<Key, Value>
+suspend inline fun <Key, Value> WriteStandardKeyValueRepo<Key, Value>.unsetWithValues(
+    vararg v: Value
+) = unsetWithValues(v.toList())
+
+interface StandardKeyValueRepo<Key, Value> : ReadStandardKeyValueRepo<Key, Value>, WriteStandardKeyValueRepo<Key, Value> {
+    override suspend fun unsetWithValues(toUnset: List<Value>) = toUnset.forEach { v ->
+        doWithPagination {
+            keys(v, it).also {
+                unset(it.results)
+            }
+        }
+    }
+}
+typealias KeyValueRepo<Key,Value> = StandardKeyValueRepo<Key, Value>

repos/common/src/commonMain/kotlin/dev/inmo/micro_utils/repos/mappers/KeyValueMappers.kt

@@ -44,6 +44,23 @@ open class MapperReadStandardKeyValueRepo<FromKey, FromValue, ToKey, ToValue>(
         )
     }
 
+    override suspend fun keys(
+        v: FromValue,
+        pagination: Pagination,
+        reversed: Boolean
+    ): PaginationResult<FromKey> = to.keys(
+        v.toOutValue(),
+        pagination,
+        reversed
+    ).let {
+        PaginationResult(
+            it.page,
+            it.pagesNumber,
+            it.results.map { it.toInnerKey() },
+            it.size
+        )
+    }
+
     override suspend fun contains(key: FromKey): Boolean = to.contains(
         key.toOutKey()
     )
@@ -51,6 +68,21 @@ open class MapperReadStandardKeyValueRepo<FromKey, FromValue, ToKey, ToValue>(
     override suspend fun count(): Long = to.count()
 }
 
+@Suppress("NOTHING_TO_INLINE")
+inline fun <FromKey, FromValue, ToKey, ToValue> ReadStandardKeyValueRepo<ToKey, ToValue>.withMapper(
+    mapper: MapperRepo<FromKey, FromValue, ToKey, ToValue>
+): ReadStandardKeyValueRepo<FromKey, FromValue> = MapperReadStandardKeyValueRepo(this, mapper)
+
+@Suppress("NOTHING_TO_INLINE")
+inline fun <reified FromKey, reified FromValue, reified ToKey, reified ToValue> ReadStandardKeyValueRepo<ToKey, ToValue>.withMapper(
+    crossinline keyFromToTo: suspend FromKey.() -> ToKey = { this as ToKey },
+    crossinline valueFromToTo: suspend FromValue.() -> ToValue = { this as ToValue },
+    crossinline keyToToFrom: suspend ToKey.() -> FromKey = { this as FromKey },
+    crossinline valueToToFrom: suspend ToValue.() -> FromValue = { this as FromValue },
+): ReadStandardKeyValueRepo<FromKey, FromValue> = withMapper(
+    mapper(keyFromToTo, valueFromToTo, keyToToFrom, valueToToFrom)
+)
+
 open class MapperWriteStandardKeyValueRepo<FromKey, FromValue, ToKey, ToValue>(
     private val to: WriteStandardKeyValueRepo<ToKey, ToValue>,
     mapper: MapperRepo<FromKey, FromValue, ToKey, ToValue>
@@ -73,8 +105,27 @@ open class MapperWriteStandardKeyValueRepo<FromKey, FromValue, ToKey, ToValue>(
             k.toOutKey()
         }
     )
+
+    override suspend fun unsetWithValues(toUnset: List<FromValue>) = to.unsetWithValues(
+        toUnset.map { it.toOutValue() }
+    )
 }
 
+@Suppress("NOTHING_TO_INLINE")
+inline fun <FromKey, FromValue, ToKey, ToValue> WriteStandardKeyValueRepo<ToKey, ToValue>.withMapper(
+    mapper: MapperRepo<FromKey, FromValue, ToKey, ToValue>
+): WriteStandardKeyValueRepo<FromKey, FromValue> = MapperWriteStandardKeyValueRepo(this, mapper)
+
+@Suppress("NOTHING_TO_INLINE")
+inline fun <reified FromKey, reified FromValue, reified ToKey, reified ToValue> WriteStandardKeyValueRepo<ToKey, ToValue>.withMapper(
+    crossinline keyFromToTo: suspend FromKey.() -> ToKey = { this as ToKey },
+    crossinline valueFromToTo: suspend FromValue.() -> ToValue = { this as ToValue },
+    crossinline keyToToFrom: suspend ToKey.() -> FromKey = { this as FromKey },
+    crossinline valueToToFrom: suspend ToValue.() -> FromValue = { this as FromValue },
+): WriteStandardKeyValueRepo<FromKey, FromValue> = withMapper(
+    mapper(keyFromToTo, valueFromToTo, keyToToFrom, valueToToFrom)
+)
+
 open class MapperStandardKeyValueRepo<FromKey, FromValue, ToKey, ToValue>(
     private val to: StandardKeyValueRepo<ToKey, ToValue>,
     mapper: MapperRepo<FromKey, FromValue, ToKey, ToValue>
@@ -82,3 +133,18 @@ open class MapperStandardKeyValueRepo<FromKey, FromValue, ToKey, ToValue>(
     MapperRepo<FromKey, FromValue, ToKey, ToValue> by mapper,
     ReadStandardKeyValueRepo<FromKey, FromValue> by MapperReadStandardKeyValueRepo(to, mapper),
     WriteStandardKeyValueRepo<FromKey, FromValue> by MapperWriteStandardKeyValueRepo(to, mapper)
+
+@Suppress("NOTHING_TO_INLINE")
+inline fun <FromKey, FromValue, ToKey, ToValue> StandardKeyValueRepo<ToKey, ToValue>.withMapper(
+    mapper: MapperRepo<FromKey, FromValue, ToKey, ToValue>
+): StandardKeyValueRepo<FromKey, FromValue> = MapperStandardKeyValueRepo(this, mapper)
+
+@Suppress("NOTHING_TO_INLINE")
+inline fun <reified FromKey, reified FromValue, reified ToKey, reified ToValue> StandardKeyValueRepo<ToKey, ToValue>.withMapper(
+    crossinline keyFromToTo: suspend FromKey.() -> ToKey = { this as ToKey },
+    crossinline valueFromToTo: suspend FromValue.() -> ToValue = { this as ToValue },
+    crossinline keyToToFrom: suspend ToKey.() -> FromKey = { this as FromKey },
+    crossinline valueToToFrom: suspend ToValue.() -> FromValue = { this as FromValue },
+): StandardKeyValueRepo<FromKey, FromValue> = withMapper(
+    mapper(keyFromToTo, valueFromToTo, keyToToFrom, valueToToFrom)
+)

repos/common/src/commonMain/kotlin/dev/inmo/micro_utils/repos/mappers/OneToManyKeyValueMappers.kt

@@ -42,6 +42,23 @@ open class MapperReadOneToManyKeyValueRepo<FromKey, FromValue, ToKey, ToValue>(
         )
     }
 
+    override suspend fun keys(
+        v: FromValue,
+        pagination: Pagination,
+        reversed: Boolean
+    ): PaginationResult<FromKey> = to.keys(
+        v.toOutValue(),
+        pagination,
+        reversed
+    ).let {
+        PaginationResult(
+            it.page,
+            it.pagesNumber,
+            it.results.map { it.toInnerKey() },
+            it.size
+        )
+    }
+
     override suspend fun contains(k: FromKey): Boolean = to.contains(k.toOutKey())
     override suspend fun contains(k: FromKey, v: FromValue): Boolean = to.contains(k.toOutKey(), v.toOutValue())
 
@@ -49,6 +66,21 @@ open class MapperReadOneToManyKeyValueRepo<FromKey, FromValue, ToKey, ToValue>(
     override suspend fun count(k: FromKey): Long = to.count(k.toOutKey())
 }
 
+@Suppress("NOTHING_TO_INLINE")
+inline fun <FromKey, FromValue, ToKey, ToValue> ReadOneToManyKeyValueRepo<ToKey, ToValue>.withMapper(
+    mapper: MapperRepo<FromKey, FromValue, ToKey, ToValue>
+): ReadOneToManyKeyValueRepo<FromKey, FromValue> = MapperReadOneToManyKeyValueRepo(this, mapper)
+
+@Suppress("NOTHING_TO_INLINE")
+inline fun <reified FromKey, reified FromValue, reified ToKey, reified ToValue> ReadOneToManyKeyValueRepo<ToKey, ToValue>.withMapper(
+    crossinline keyFromToTo: suspend FromKey.() -> ToKey = { this as ToKey },
+    crossinline valueFromToTo: suspend FromValue.() -> ToValue = { this as ToValue },
+    crossinline keyToToFrom: suspend ToKey.() -> FromKey = { this as FromKey },
+    crossinline valueToToFrom: suspend ToValue.() -> FromValue = { this as FromValue },
+): ReadOneToManyKeyValueRepo<FromKey, FromValue> = withMapper(
+    mapper(keyFromToTo, valueFromToTo, keyToToFrom, valueToToFrom)
+)
+
 open class MapperWriteOneToManyKeyValueRepo<FromKey, FromValue, ToKey, ToValue>(
     private val to: WriteOneToManyKeyValueRepo<ToKey, ToValue>,
     mapper: MapperRepo<FromKey, FromValue, ToKey, ToValue>
@@ -75,9 +107,30 @@ open class MapperWriteOneToManyKeyValueRepo<FromKey, FromValue, ToKey, ToValue>(
         }.toMap()
     )
 
+    override suspend fun set(toSet: Map<FromKey, List<FromValue>>) {
+        to.set(
+            toSet.map { (k, vs) -> k.toOutKey() to vs.map { v -> v.toOutValue() } }.toMap()
+        )
+    }
+
     override suspend fun clear(k: FromKey) = to.clear(k.toOutKey())
 }
 
+@Suppress("NOTHING_TO_INLINE")
+inline fun <FromKey, FromValue, ToKey, ToValue> WriteOneToManyKeyValueRepo<ToKey, ToValue>.withMapper(
+    mapper: MapperRepo<FromKey, FromValue, ToKey, ToValue>
+): WriteOneToManyKeyValueRepo<FromKey, FromValue> = MapperWriteOneToManyKeyValueRepo(this, mapper)
+
+@Suppress("NOTHING_TO_INLINE")
+inline fun <reified FromKey, reified FromValue, reified ToKey, reified ToValue> WriteOneToManyKeyValueRepo<ToKey, ToValue>.withMapper(
+    crossinline keyFromToTo: suspend FromKey.() -> ToKey = { this as ToKey },
+    crossinline valueFromToTo: suspend FromValue.() -> ToValue = { this as ToValue },
+    crossinline keyToToFrom: suspend ToKey.() -> FromKey = { this as FromKey },
+    crossinline valueToToFrom: suspend ToValue.() -> FromValue = { this as FromValue },
+): WriteOneToManyKeyValueRepo<FromKey, FromValue> = withMapper(
+    mapper(keyFromToTo, valueFromToTo, keyToToFrom, valueToToFrom)
+)
+
 open class MapperOneToManyKeyValueRepo<FromKey, FromValue, ToKey, ToValue>(
     private val to: OneToManyKeyValueRepo<ToKey, ToValue>,
     mapper: MapperRepo<FromKey, FromValue, ToKey, ToValue>
@@ -85,3 +138,18 @@ open class MapperOneToManyKeyValueRepo<FromKey, FromValue, ToKey, ToValue>(
     MapperRepo<FromKey, FromValue, ToKey, ToValue> by mapper,
     ReadOneToManyKeyValueRepo<FromKey, FromValue> by MapperReadOneToManyKeyValueRepo(to, mapper),
     WriteOneToManyKeyValueRepo<FromKey, FromValue> by MapperWriteOneToManyKeyValueRepo(to, mapper)
+
+@Suppress("NOTHING_TO_INLINE")
+inline fun <FromKey, FromValue, ToKey, ToValue> OneToManyKeyValueRepo<ToKey, ToValue>.withMapper(
+    mapper: MapperRepo<FromKey, FromValue, ToKey, ToValue>
+): OneToManyKeyValueRepo<FromKey, FromValue> = MapperOneToManyKeyValueRepo(this, mapper)
+
+@Suppress("NOTHING_TO_INLINE")
+inline fun <reified FromKey, reified FromValue, reified ToKey, reified ToValue> OneToManyKeyValueRepo<ToKey, ToValue>.withMapper(
+    crossinline keyFromToTo: suspend FromKey.() -> ToKey = { this as ToKey },
+    crossinline valueFromToTo: suspend FromValue.() -> ToValue = { this as ToValue },
+    crossinline keyToToFrom: suspend ToKey.() -> FromKey = { this as FromKey },
+    crossinline valueToToFrom: suspend ToValue.() -> FromValue = { this as FromValue },
+): OneToManyKeyValueRepo<FromKey, FromValue> = withMapper(
+    mapper(keyFromToTo, valueFromToTo, keyToToFrom, valueToToFrom)
+)

repos/common/src/commonMain/kotlin/dev/inmo/micro_utils/repos/versions/KeyValueBasedVersionsRepoProxy.kt

@@ -0,0 +1,13 @@
+package dev.inmo.micro_utils.repos.versions
+
+import dev.inmo.micro_utils.repos.StandardKeyValueRepo
+import dev.inmo.micro_utils.repos.set
+
+class KeyValueBasedVersionsRepoProxy<T>(
+    private val keyValueStore: StandardKeyValueRepo<String, Int>,
+    override val database: T
+) : StandardVersionsRepoProxy<T> {
+    override suspend fun getTableVersion(tableName: String): Int? = keyValueStore.get(tableName)
+
+    override suspend fun updateTableVersion(tableName: String, version: Int) { keyValueStore.set(tableName, version) }
+}

repos/common/src/commonMain/kotlin/dev/inmo/micro_utils/repos/versions/StandardVersionsRepo.kt

@@ -0,0 +1,36 @@
+package dev.inmo.micro_utils.repos.versions
+
+import dev.inmo.micro_utils.repos.Repo
+
+interface StandardVersionsRepoProxy<T> : Repo {
+    val database: T
+
+    suspend fun getTableVersion(tableName: String): Int?
+    suspend fun updateTableVersion(tableName: String, version: Int)
+}
+
+class StandardVersionsRepo<T>(
+    private val proxy: StandardVersionsRepoProxy<T>
+) : VersionsRepo<T> {
+    override suspend fun setTableVersion(
+        tableName: String,
+        version: Int,
+        onCreate: suspend T.() -> Unit,
+        onUpdate: suspend T.(from: Int, to: Int) -> Unit
+    ) {
+        var savedVersion = proxy.getTableVersion(tableName)
+        if (savedVersion == null) {
+            proxy.database.onCreate()
+            proxy.updateTableVersion(tableName, version)
+        } else {
+            while (savedVersion != null && savedVersion < version) {
+                val newVersion = savedVersion + 1
+
+                proxy.database.onUpdate(savedVersion, newVersion)
+
+                proxy.updateTableVersion(tableName, newVersion)
+                savedVersion = newVersion
+            }
+        }
+    }
+}

repos/common/src/commonMain/kotlin/dev/inmo/micro_utils/repos/versions/VersionsRepo.kt

@@ -0,0 +1,31 @@
+package dev.inmo.micro_utils.repos.versions
+
+import dev.inmo.micro_utils.repos.Repo
+
+/**
+ * This interface has been created due to requirement to work with different versions of databases and make some
+ * migrations between versions
+ *
+ * @param T It is a type of database, which will be used by this repo to retrieve current table version and update it
+ */
+interface VersionsRepo<T> : Repo {
+    /**
+     * By default, instance of this interface will check that version of table with name [tableName] is less than
+     * [version] or is absent
+     *
+     * * In case if [tableName] didn't found, will be called [onCreate] and version of table will be set up to [version]
+     * * In case if [tableName] have version less than parameter [version], it will increase version one-by-one
+     * until database version will be equal to [version]
+     *
+     * @param version Current version of table
+     * @param onCreate This callback will be called in case when table have no information about table
+     * @param onUpdate This callback will be called after **iterative** changing of version. It is expected that parameter
+     * "to" will always be greater than "from"
+     */
+    suspend fun setTableVersion(
+        tableName: String,
+        version: Int,
+        onCreate: suspend T.() -> Unit = {},
+        onUpdate: suspend T.(from: Int, to: Int) -> Unit = { _, _ ->}
+    )
+}

repos/common/src/jvmMain/kotlin/dev/inmo/micro_utils/repos/FileStandardKeyValueRepo.kt

@@ -0,0 +1,183 @@
+package dev.inmo.micro_utils.repos
+
+import dev.inmo.micro_utils.common.Warning
+import dev.inmo.micro_utils.pagination.*
+import dev.inmo.micro_utils.pagination.utils.reverse
+import kotlinx.coroutines.*
+import kotlinx.coroutines.flow.*
+import java.io.File
+import java.nio.file.FileSystems
+import java.nio.file.Path
+import java.nio.file.StandardWatchEventKinds.*
+
+private inline val String.isAbsolute
+    get() = startsWith(File.separator)
+
+class FileReadStandardKeyValueRepo(
+    private val folder: File
+) : ReadStandardKeyValueRepo<String, File> {
+    init {
+        folder.mkdirs()
+    }
+
+    override suspend fun get(k: String): File? {
+        val file = File(folder, k)
+        if (file.exists()) {
+            return file
+        }
+        return null
+    }
+
+    override suspend fun values(pagination: Pagination, reversed: Boolean): PaginationResult<File> {
+        val count = count()
+        val resultPagination = if (reversed) pagination.reverse(count) else pagination
+        val filesPaths = folder.list() ?.copyOfRange(resultPagination.firstIndex, resultPagination.lastIndex) ?: return emptyPaginationResult()
+        if (reversed) {
+            filesPaths.reverse()
+        }
+        return filesPaths.map { File(folder, it) }.createPaginationResult(
+            resultPagination,
+            count
+        )
+    }
+
+    override suspend fun keys(pagination: Pagination, reversed: Boolean): PaginationResult<String> {
+        val count = count()
+        val resultPagination = if (reversed) pagination.reverse(count) else pagination
+        val filesPaths = folder.list() ?.copyOfRange(resultPagination.firstIndex, resultPagination.lastIndex) ?: return emptyPaginationResult()
+        if (reversed) {
+            filesPaths.reverse()
+        }
+        return filesPaths.toList().createPaginationResult(
+            resultPagination,
+            count
+        )
+    }
+
+    override suspend fun keys(
+        v: File,
+        pagination: Pagination,
+        reversed: Boolean
+    ): PaginationResult<String> {
+        val resultPagination = if (reversed) pagination.reverse(1L) else pagination
+        return if (resultPagination.isFirstPage) {
+            val fileSubpath = v.absolutePath.removePrefix(folder.absolutePath)
+            if (fileSubpath == v.absolutePath) {
+                emptyList()
+            } else {
+                listOf(fileSubpath)
+            }
+        } else {
+            emptyList()
+        }.createPaginationResult(resultPagination, 1L)
+    }
+
+    override suspend fun contains(key: String): Boolean {
+        return File(folder, key).exists()
+    }
+
+    override suspend fun count(): Long = folder.list() ?.size ?.toLong() ?: 0L
+}
+
+/**
+ * Files watching will not correctly works on Android with version of API lower than API 26
+ */
+@Warning("Files watching will not correctly works on Android Platform with version of API lower than API 26")
+class FileWriteStandardKeyValueRepo(
+    private val folder: File,
+    filesChangedProcessingScope: CoroutineScope? = null
+) : WriteStandardKeyValueRepo<String, File> {
+    private val _onNewValue = MutableSharedFlow<Pair<String, File>>()
+    override val onNewValue: Flow<Pair<String, File>> = _onNewValue.asSharedFlow()
+    private val _onValueRemoved = MutableSharedFlow<String>()
+    override val onValueRemoved: Flow<String> = _onValueRemoved.asSharedFlow()
+
+    init {
+        folder.mkdirs()
+        filesChangedProcessingScope ?.let {
+            it.launch {
+                try {
+                    val folderPath = folder.toPath()
+                    while (isActive) {
+                        val key = try {
+                            folderPath.register(FileSystems.getDefault().newWatchService(), ENTRY_CREATE, ENTRY_MODIFY, ENTRY_DELETE)
+                        } catch (e: Exception) {
+                            // add verbose way to show that file watching is not working
+                            return@launch
+                        }
+
+                        for (event in key.pollEvents()) {
+                            val relativeFilePath = (event.context() as? Path) ?: continue
+                            val file = relativeFilePath.toFile()
+                            val relativePath = file.toRelativeString(folder)
+
+                            when (event.kind()) {
+                                ENTRY_CREATE, ENTRY_MODIFY -> {
+                                    launch {
+                                        _onNewValue.emit(relativePath to file)
+                                    }
+                                }
+                                ENTRY_DELETE -> {
+                                    launch {
+                                        _onValueRemoved.emit(relativePath)
+                                    }
+                                }
+                            }
+                        }
+
+                        if (key.isValid || folder.exists()) {
+                            continue
+                        }
+                        break
+                    }
+                } catch (e: Throwable) {
+                    // add verbose way to notify that this functionality is disabled
+                }
+            }
+        }
+    }
+
+    override suspend fun set(toSet: Map<String, File>) {
+        supervisorScope {
+            toSet.map { (filename, fileSource) ->
+                launch {
+                    val file = File(folder, filename)
+
+                    file.delete()
+                    fileSource.copyTo(file, overwrite = true)
+                    _onNewValue.emit(filename to file)
+                }
+            }
+        }.joinAll()
+    }
+
+    override suspend fun unset(toUnset: List<String>) {
+        toUnset.forEach {
+            val file = File(folder, it)
+            if (file.exists()) {
+                file.delete()
+                _onValueRemoved.emit(it)
+            }
+        }
+    }
+
+    override suspend fun unsetWithValues(toUnset: List<File>) {
+        val keys = toUnset.mapNotNull { v ->
+            val key = v.absolutePath.removePrefix(folder.absolutePath)
+            if (key != v.absolutePath) {
+                key
+            } else {
+                null
+            }
+        }
+        unset(keys)
+    }
+}
+
+@Warning("Files watching will not correctly works on Android Platform with version of API lower than API 26")
+class FileStandardKeyValueRepo(
+    folder: File,
+    filesChangedProcessingScope: CoroutineScope? = null
+) : StandardKeyValueRepo<String, File>,
+    WriteStandardKeyValueRepo<String, File> by FileWriteStandardKeyValueRepo(folder, filesChangedProcessingScope),
+    ReadStandardKeyValueRepo<String, File> by FileReadStandardKeyValueRepo(folder)

repos/common/src/main/AndroidManifest.xml

@@ -0,0 +1 @@
+<manifest package="dev.inmo.micro_utils.repos.common"/>

repos/common/src/main/kotlin/dev/inmo/micro_utils/repos/ColumnType.kt

@@ -0,0 +1,46 @@
+package dev.inmo.micro_utils.repos
+
+sealed class ColumnType(
+    typeName: String,
+    nullable: Boolean
+) {
+    open val asType: String = "$typeName${if (!nullable) " not null" else ""}"
+    sealed class Text(
+        nullable: Boolean
+    ) : ColumnType("text", nullable) {
+        object NULLABLE : Text(true)
+        object NOT_NULLABLE : Text(false)
+    }
+    sealed class Numeric(
+        typeName: String,
+        autoincrement: Boolean = false,
+        primaryKey: Boolean = false,
+        nullable: Boolean = false
+    ) : ColumnType(
+        typeName,
+        nullable
+    ) {
+        override val asType: String = "${super.asType}${if (primaryKey) " primary key" else ""}${if (autoincrement) " autoincrement" else ""}"
+
+        class INTEGER(
+            autoincrement: Boolean = false,
+            primaryKey: Boolean = false,
+            nullable: Boolean = false
+        ) : Numeric(
+            "integer",
+            autoincrement,
+            primaryKey,
+            nullable
+        )
+        class DOUBLE(autoincrement: Boolean = false, primaryKey: Boolean = false, nullable: Boolean = false) : Numeric(
+            "double",
+            autoincrement,
+            primaryKey,
+            nullable
+        )
+    }
+
+    override fun toString(): String {
+        return asType
+    }
+}

repos/common/src/main/kotlin/dev/inmo/micro_utils/repos/ContentValuesOf.kt

@@ -0,0 +1,8 @@
+package dev.inmo.micro_utils.repos
+
+import androidx.core.content.contentValuesOf
+
+@Suppress("UNCHECKED_CAST", "SimplifiableCall")
+fun contentValuesOfNotNull(vararg pairs: Pair<String, Any?>?) = contentValuesOf(
+    *(pairs.filter { it != null } as List<Pair<String, Any?>>).toTypedArray()
+)

repos/common/src/main/kotlin/dev/inmo/micro_utils/repos/CursorMapping.kt

@@ -0,0 +1,21 @@
+package dev.inmo.micro_utils.repos
+
+import android.database.Cursor
+
+inline fun <T> Cursor.map(
+    block: (Cursor) -> T
+): List<T> {
+    val result = mutableListOf<T>()
+    if (moveToFirst()) {
+        do {
+            result.add(block(this))
+        } while (moveToNext())
+    }
+    return result
+}
+
+fun Cursor.firstOrNull(): Cursor? = if (moveToFirst()) {
+    this
+} else {
+    null
+}

repos/common/src/main/kotlin/dev/inmo/micro_utils/repos/DatabaseCoroutineContext.kt

@@ -0,0 +1,6 @@
+package dev.inmo.micro_utils.repos
+
+import kotlinx.coroutines.Dispatchers
+import kotlin.coroutines.CoroutineContext
+
+val DatabaseCoroutineContext: CoroutineContext = Dispatchers.IO

repos/common/src/main/kotlin/dev/inmo/micro_utils/repos/DatabaseOperations.kt

@@ -0,0 +1,64 @@
+package dev.inmo.micro_utils.repos
+
+import android.database.Cursor
+import android.database.sqlite.SQLiteDatabase
+
+fun createTableQuery(
+    tableName: String,
+    vararg columnsToTypes: Pair<String, ColumnType>
+) = "create table $tableName (${columnsToTypes.joinToString(", ") { "${it.first} ${it.second}" }});"
+
+fun SQLiteDatabase.createTable(
+    tableName: String,
+    vararg columnsToTypes: Pair<String, ColumnType>,
+    onInit: (SQLiteDatabase.() -> Unit)? = null
+): Boolean {
+    val existing = rawQuery("SELECT name FROM sqlite_master WHERE type='table' AND name='$tableName'", null).use {
+        it.count > 0
+    }
+    return if (existing) {
+        false
+        // TODO:: add upgrade opportunity
+    } else {
+        execSQL(createTableQuery(tableName, *columnsToTypes))
+        onInit ?.invoke(this)
+        true
+    }
+}
+
+fun Cursor.getString(columnName: String) = getString(
+    getColumnIndex(columnName)
+)
+
+fun Cursor.getLong(columnName: String) = getLong(
+    getColumnIndex(columnName)
+)
+
+fun Cursor.getInt(columnName: String) = getInt(
+    getColumnIndex(columnName)
+)
+
+fun Cursor.getDouble(columnName: String) = getDouble(
+    getColumnIndex(columnName)
+)
+
+fun SQLiteDatabase.select(
+    table: String,
+    columns: Array<String>? = null,
+    selection: String? = null,
+    selectionArgs: Array<String>? = null,
+    groupBy: String? = null,
+    having: String? = null,
+    orderBy: String? = null,
+    limit: String? = null
+) = query(
+    table, columns, selection, selectionArgs, groupBy, having, orderBy, limit
+)
+
+fun makePlaceholders(count: Int): String {
+    return (0 until count).joinToString { "?" }
+}
+
+fun makeStringPlaceholders(count: Int): String {
+    return (0 until count).joinToString { "\"?\"" }
+}

repos/common/src/main/kotlin/dev/inmo/micro_utils/repos/DatabasePaginationExtensions.kt

@@ -0,0 +1,8 @@
+package dev.inmo.micro_utils.repos
+
+import dev.inmo.micro_utils.pagination.Pagination
+import dev.inmo.micro_utils.pagination.firstIndex
+
+fun limitClause(size: Long, since: Long? = null) = "${since ?.let { "$it, " } ?: ""}$size"
+fun limitClause(size: Int, since: Int? = null) = limitClause(size.toLong(), since ?.toLong())
+fun Pagination.limitClause() = limitClause(size, firstIndex)

repos/common/src/main/kotlin/dev/inmo/micro_utils/repos/DatabaseTransactions.kt

@@ -0,0 +1,87 @@
+package dev.inmo.micro_utils.repos
+
+import android.database.sqlite.SQLiteDatabase
+import dev.inmo.micro_utils.coroutines.safely
+import kotlinx.coroutines.*
+import kotlinx.coroutines.sync.Mutex
+import kotlinx.coroutines.sync.withLock
+import java.util.concurrent.Executors
+import kotlin.coroutines.CoroutineContext
+import kotlin.coroutines.coroutineContext
+
+private object ContextsPool {
+    private val contexts = mutableListOf<CoroutineContext>()
+    private val mutex = Mutex(locked = false)
+    private val freeContexts = mutableListOf<CoroutineContext>()
+
+    suspend fun acquireContext(): CoroutineContext {
+        return mutex.withLock {
+            freeContexts.removeFirstOrNull() ?: Executors.newSingleThreadExecutor().asCoroutineDispatcher().also {
+                contexts.add(it)
+            }
+        }
+    }
+
+    suspend fun freeContext(context: CoroutineContext) {
+        return mutex.withLock {
+            if (context in contexts && context !in freeContexts) {
+                freeContexts.add(context)
+            }
+        }
+    }
+
+    suspend fun <T> use(block: suspend (CoroutineContext) -> T): T = acquireContext().let {
+        try {
+            block(it)
+        } finally {
+            freeContext(it)
+        }
+    }
+}
+
+class TransactionContext(
+    val databaseContext: CoroutineContext
+): CoroutineContext.Element {
+    override val key: CoroutineContext.Key<TransactionContext> = TransactionContext
+
+    companion object : CoroutineContext.Key<TransactionContext>
+}
+
+suspend fun <T> SQLiteDatabase.transaction(block: suspend SQLiteDatabase.() -> T): T {
+    return coroutineContext[TransactionContext] ?.let {
+        withContext(it.databaseContext) {
+            block()
+        }
+    } ?: ContextsPool.use { context ->
+        withContext(TransactionContext(context) + context) {
+            beginTransaction()
+            safely(
+                {
+                    endTransaction()
+                    throw it
+                }
+            ) {
+                block().also {
+                    setTransactionSuccessful()
+                    endTransaction()
+                }
+            }
+        }
+    }
+}
+
+inline fun <T> SQLiteDatabase.inlineTransaction(block: SQLiteDatabase.() -> T): T {
+    return when {
+        inTransaction() -> block()
+        else -> {
+            beginTransaction()
+            try {
+                block().also {
+                    setTransactionSuccessful()
+                }
+            } finally {
+                endTransaction()
+            }
+        }
+    }
+}

repos/common/src/main/kotlin/dev/inmo/micro_utils/repos/InternalId.kt

@@ -0,0 +1,7 @@
+package dev.inmo.micro_utils.repos
+
+val internalId = "_id"
+val internalIdType = ColumnType.Numeric.INTEGER(
+    autoincrement = true,
+    primaryKey = true
+)

repos/common/src/main/kotlin/dev/inmo/micro_utils/repos/StandardSQLHelper.kt

@@ -0,0 +1,40 @@
+package dev.inmo.micro_utils.repos
+
+import android.content.Context
+import android.database.DatabaseErrorHandler
+import android.database.sqlite.SQLiteDatabase
+import android.database.sqlite.SQLiteOpenHelper
+import dev.inmo.micro_utils.coroutines.safely
+import dev.inmo.micro_utils.repos.versions.*
+import kotlin.coroutines.Continuation
+import kotlin.coroutines.resume
+import kotlin.coroutines.resumeWithException
+
+class StandardSQLHelper(
+    context: Context,
+    name: String,
+    factory: SQLiteDatabase.CursorFactory? = null,
+    version: Int = 1,
+    errorHandler: DatabaseErrorHandler? = null
+) {
+    val sqlOpenHelper = object : SQLiteOpenHelper(context, name, factory, version, errorHandler) {
+        override fun onCreate(db: SQLiteDatabase?) {}
+
+        override fun onUpgrade(db: SQLiteDatabase?, oldVersion: Int, newVersion: Int) {}
+    }
+    val versionsRepo: VersionsRepo<SQLiteOpenHelper> by lazy {
+        StandardVersionsRepo(AndroidSQLStandardVersionsRepoProxy(sqlOpenHelper))
+    }
+
+    suspend fun <T> writableTransaction(block: suspend SQLiteDatabase.() -> T): T = sqlOpenHelper.writableTransaction(block)
+
+    suspend fun <T> readableTransaction(block: suspend SQLiteDatabase.() -> T): T = sqlOpenHelper.readableTransaction(block)
+}
+
+suspend fun <T> SQLiteOpenHelper.writableTransaction(block: suspend SQLiteDatabase.() -> T): T {
+    return writableDatabase.transaction(block)
+}
+
+suspend fun <T> SQLiteOpenHelper.readableTransaction(block: suspend SQLiteDatabase.() -> T): T {
+    return readableDatabase.transaction(block)
+}

repos/common/src/main/kotlin/dev/inmo/micro_utils/repos/crud/AbstractAndroidCRUDRepo.kt

@@ -0,0 +1,67 @@
+package dev.inmo.micro_utils.repos.crud
+
+import android.database.Cursor
+import android.database.sqlite.SQLiteDatabase
+import dev.inmo.micro_utils.pagination.Pagination
+import dev.inmo.micro_utils.pagination.PaginationResult
+import dev.inmo.micro_utils.pagination.createPaginationResult
+import dev.inmo.micro_utils.repos.*
+
+val <T> T.asId: String
+    get() = (this as? String) ?: this!!.toString()
+
+abstract class AbstractAndroidCRUDRepo<ObjectType, IdType>(
+    protected val helper: StandardSQLHelper
+) : ReadStandardCRUDRepo<ObjectType, IdType> {
+    protected abstract val tableName: String
+    protected abstract val idColumnName: String
+    protected abstract suspend fun Cursor.toObject(): ObjectType
+    protected fun SQLiteDatabase.count(): Long = select(tableName).use {
+        it.count
+    }.toLong()
+
+    override suspend fun contains(id: IdType): Boolean = helper.readableTransaction {
+        select(
+            tableName,
+            null,
+            "$idColumnName=?",
+            arrayOf(id.asId)
+        ).use {
+            it.count > 0
+        }
+    }
+
+    override suspend fun getById(id: IdType): ObjectType? = helper.readableTransaction {
+        select(
+            tableName,
+            selection = "$idColumnName=?",
+            selectionArgs = arrayOf(id.asId),
+            limit = limitClause(1)
+        ).use { c ->
+            if (c.moveToFirst()) {
+                c.toObject()
+            } else {
+                null
+            }
+        }
+    }
+
+    override suspend fun getByPagination(pagination: Pagination): PaginationResult<ObjectType> {
+        return helper.readableTransaction {
+            select(
+                tableName,
+                limit = pagination.limitClause()
+            ).use {
+                if (it.moveToFirst()) {
+                    val resultList = mutableListOf(it.toObject())
+                    while (it.moveToNext()) {
+                        resultList.add(it.toObject())
+                    }
+                    resultList.createPaginationResult(pagination, count())
+                } else {
+                    emptyList<ObjectType>().createPaginationResult(pagination, 0)
+                }
+            }
+        }
+    }
+}

repos/common/src/main/kotlin/dev/inmo/micro_utils/repos/crud/AbstractMutableAndroidCRUDRepo.kt

@@ -0,0 +1,102 @@
+package dev.inmo.micro_utils.repos.crud
+
+import android.content.ContentValues
+import dev.inmo.micro_utils.common.mapNotNullA
+import dev.inmo.micro_utils.repos.*
+import kotlinx.coroutines.flow.*
+
+abstract class AbstractMutableAndroidCRUDRepo<ObjectType, IdType, InputValueType>(
+    helper: StandardSQLHelper
+) : WriteStandardCRUDRepo<ObjectType, IdType, InputValueType>,
+    AbstractAndroidCRUDRepo<ObjectType, IdType>(helper) {
+    protected val newObjectsChannel = MutableSharedFlow<ObjectType>(64)
+    protected val updateObjectsChannel = MutableSharedFlow<ObjectType>(64)
+    protected val deleteObjectsIdsChannel = MutableSharedFlow<IdType>(64)
+    override val newObjectsFlow: Flow<ObjectType> = newObjectsChannel.asSharedFlow()
+    override val updatedObjectsFlow: Flow<ObjectType> = updateObjectsChannel.asSharedFlow()
+    override val deletedObjectsIdsFlow: Flow<IdType> = deleteObjectsIdsChannel.asSharedFlow()
+
+    protected abstract suspend fun InputValueType.asContentValues(id: IdType? = null): ContentValues
+
+    override suspend fun create(values: List<InputValueType>): List<ObjectType> {
+        val indexes = helper.writableTransaction {
+            values.map {
+                insert(tableName, null, it.asContentValues())
+            }
+        }
+        return helper.readableTransaction {
+            indexes.mapNotNullA { i ->
+                select(
+                    tableName,
+                    selection = "$internalId=?",
+                    selectionArgs = arrayOf(i.toString())
+                ).use { c ->
+                    if (c.moveToFirst()) {
+                        c.toObject()
+                    } else {
+                        null
+                    }
+                }
+            }
+        }.also {
+            it.forEach {
+                newObjectsChannel.emit(it)
+            }
+        }
+    }
+
+    override suspend fun deleteById(ids: List<IdType>) {
+        val deleted = mutableListOf<IdType>()
+        helper.writableTransaction {
+            ids.forEach { id ->
+                delete(tableName, "$idColumnName=?", arrayOf(id.asId)).also {
+                    if (it > 0) {
+                        deleted.add(id)
+                    }
+                }
+            }
+        }
+        deleted.forEach {
+            deleteObjectsIdsChannel.emit(it)
+        }
+    }
+
+    override suspend fun update(id: IdType, value: InputValueType): ObjectType? {
+        val asContentValues = value.asContentValues(id)
+        if (asContentValues.keySet().isNotEmpty()) {
+            helper.writableTransaction {
+                update(
+                    tableName,
+                    asContentValues,
+                    "$idColumnName=?",
+                    arrayOf(id.asId)
+                )
+            }
+        }
+        return getById(id) ?.also {
+            updateObjectsChannel.emit(it)
+        }
+    }
+
+    override suspend fun update(values: List<UpdatedValuePair<IdType, InputValueType>>): List<ObjectType> {
+        helper.writableTransaction {
+            values.forEach { (id, value) ->
+                update(
+                    tableName,
+                    value.asContentValues(id),
+                    "$idColumnName=?",
+                    arrayOf(id.asId)
+                )
+            }
+        }
+        return values.mapNotNullA {
+            getById(it.first)
+        }.also {
+            it.forEach {
+                updateObjectsChannel.emit(it)
+            }
+        }
+    }
+
+    override suspend fun count(): Long = helper.readableTransaction { select(tableName).use { it.count.toLong() } }
+}

repos/common/src/main/kotlin/dev/inmo/micro_utils/repos/keyvalue/KeyValueStore.kt

@@ -0,0 +1,153 @@
+package dev.inmo.micro_utils.repos.keyvalue
+
+import android.content.Context
+import android.content.SharedPreferences
+import androidx.core.content.edit
+import dev.inmo.micro_utils.pagination.Pagination
+import dev.inmo.micro_utils.pagination.PaginationResult
+import dev.inmo.micro_utils.pagination.utils.paginate
+import dev.inmo.micro_utils.pagination.utils.reverse
+import dev.inmo.micro_utils.repos.StandardKeyValueRepo
+import kotlinx.coroutines.flow.*
+
+private val cache = HashMap<String, KeyValueStore<*>>()
+
+fun <T : Any> Context.keyValueStore(
+    name: String = "default",
+    cacheValues: Boolean = false
+): StandardKeyValueRepo<String, T> {
+    return cache.getOrPut(name) {
+        KeyValueStore<T>(this, name, cacheValues)
+    } as KeyValueStore<T>
+}
+
+class KeyValueStore<T : Any> internal constructor (
+    c: Context,
+    preferencesName: String,
+    useCache: Boolean = false
+) : SharedPreferences.OnSharedPreferenceChangeListener, StandardKeyValueRepo<String, T> {
+    private val sharedPreferences = c.getSharedPreferences(preferencesName, Context.MODE_PRIVATE)
+
+    private val cachedData = if (useCache) {
+        mutableMapOf<String, Any>()
+    } else {
+        null
+    }
+
+    private val onNewValueChannel = MutableSharedFlow<Pair<String, T>>()
+    private val _onValueRemovedFlow = MutableSharedFlow<String>()
+
+    override val onNewValue: Flow<Pair<String, T>> = onNewValueChannel.asSharedFlow()
+    override val onValueRemoved: Flow<String> = _onValueRemovedFlow.asSharedFlow()
+
+    init {
+        cachedData ?.let {
+            sharedPreferences.all.forEach {
+                if (it.value != null) {
+                    cachedData[it.key] = it.value as Any
+                }
+            }
+            sharedPreferences.registerOnSharedPreferenceChangeListener(this)
+        }
+    }
+
+    override fun onSharedPreferenceChanged(sp: SharedPreferences, key: String) {
+        val value = sp.all[key]
+        cachedData ?: return
+        if (value != null) {
+            cachedData[key] = value
+        } else {
+            cachedData.remove(key)
+        }
+    }
+
+    override suspend fun get(k: String): T? {
+        return (cachedData ?. get(k) ?: sharedPreferences.all[k]) as? T
+    }
+
+    override suspend fun values(pagination: Pagination, reversed: Boolean): PaginationResult<T> {
+        val resultPagination = if (reversed) pagination.reverse(count()) else pagination
+        return sharedPreferences.all.values.paginate(
+            resultPagination
+        ).let {
+            PaginationResult(
+                it.page,
+                it.pagesNumber,
+                it.results.map { it as T }.let { if (reversed) it.reversed() else it },
+                it.size
+            )
+        }
+    }
+
+    override suspend fun keys(pagination: Pagination, reversed: Boolean): PaginationResult<String> {
+        val resultPagination = if (reversed) pagination.reverse(count()) else pagination
+        return sharedPreferences.all.keys.paginate(
+            resultPagination
+        ).let {
+            PaginationResult(
+                it.page,
+                it.pagesNumber,
+                it.results.let { if (reversed) it.reversed() else it },
+                it.size
+            )
+        }
+    }
+
+    override suspend fun keys(v: T, pagination: Pagination, reversed: Boolean): PaginationResult<String> {
+        val resultPagination = if (reversed) pagination.reverse(count()) else pagination
+        return sharedPreferences.all.mapNotNull { (k, value) -> if (value == v) k else null }.paginate(
+            resultPagination
+        ).let {
+            PaginationResult(
+                it.page,
+                it.pagesNumber,
+                it.results.let { if (reversed) it.reversed() else it },
+                it.size
+            )
+        }
+    }
+
+    override suspend fun contains(key: String): Boolean = sharedPreferences.contains(key)
+
+    override suspend fun count(): Long = sharedPreferences.all.size.toLong()
+
+    override suspend fun set(toSet: Map<String, T>) {
+        sharedPreferences.edit {
+            toSet.forEach { (k, v) ->
+                when(v) {
+                    is Int -> putInt(k, v)
+                    is Long -> putLong(k, v)
+                    is Float -> putFloat(k, v)
+                    is String -> putString(k, v)
+                    is Boolean -> putBoolean(k, v)
+                    is Set<*> -> putStringSet(k, v.map { (it as? String) ?: it.toString() }.toSet())
+                    else -> error(
+                        "Currently supported only primitive types and set for SharedPreferences KeyValue repos"
+                    )
+                }
+            }
+        }
+        toSet.forEach { (k, v) ->
+            onNewValueChannel.emit(k to v)
+        }
+    }
+
+    override suspend fun unset(toUnset: List<String>) {
+        sharedPreferences.edit {
+            toUnset.forEach { remove(it) }
+        }
+        toUnset.forEach { _onValueRemovedFlow.emit(it) }
+    }
+
+    override suspend fun unsetWithValues(toUnset: List<T>) {
+        val keysToRemove = sharedPreferences.all.mapNotNull { if (it.value in toUnset) it.key else null }
+        sharedPreferences.edit {
+            keysToRemove.map {
+                remove(it)
+            }
+        }
+        keysToRemove.forEach {
+            _onValueRemovedFlow.emit(it)
+        }
+    }
+}

repos/common/src/main/kotlin/dev/inmo/micro_utils/repos/onetomany/OneToManyAndroidRepo.kt

@@ -0,0 +1,237 @@
+package dev.inmo.micro_utils.repos.onetomany
+
+import android.database.sqlite.SQLiteOpenHelper
+import androidx.core.content.contentValuesOf
+import dev.inmo.micro_utils.common.mapNotNullA
+import dev.inmo.micro_utils.pagination.FirstPagePagination
+import dev.inmo.micro_utils.pagination.Pagination
+import dev.inmo.micro_utils.pagination.PaginationResult
+import dev.inmo.micro_utils.pagination.createPaginationResult
+import dev.inmo.micro_utils.pagination.utils.reverse
+import dev.inmo.micro_utils.repos.*
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.MutableSharedFlow
+import kotlinx.coroutines.flow.asSharedFlow
+import kotlinx.coroutines.runBlocking
+import kotlinx.serialization.KSerializer
+import kotlinx.serialization.json.Json
+
+private val internalSerialFormat = Json {
+    ignoreUnknownKeys = true
+}
+
+class OneToManyAndroidRepo<Key, Value>(
+    private val tableName: String,
+    private val keySerializer: KSerializer<Key>,
+    private val valueSerializer: KSerializer<Value>,
+    private val helper: SQLiteOpenHelper
+) : OneToManyKeyValueRepo<Key, Value> {
+    private val _onNewValue: MutableSharedFlow<Pair<Key, Value>> = MutableSharedFlow()
+    override val onNewValue: Flow<Pair<Key, Value>> = _onNewValue.asSharedFlow()
+    private val _onValueRemoved: MutableSharedFlow<Pair<Key, Value>> = MutableSharedFlow()
+    override val onValueRemoved: Flow<Pair<Key, Value>> = _onValueRemoved.asSharedFlow()
+    private val _onDataCleared = MutableSharedFlow<Key>()
+    override val onDataCleared: Flow<Key> = _onDataCleared.asSharedFlow()
+
+    private val idColumnName = "id"
+    private val valueColumnName = "value"
+
+    private fun Key.asId() = internalSerialFormat.encodeToString(keySerializer, this)
+    private fun Value.asValue() = internalSerialFormat.encodeToString(valueSerializer, this)
+    private fun String.asValue(): Value = internalSerialFormat.decodeFromString(valueSerializer, this)
+    private fun String.asKey(): Key = internalSerialFormat.decodeFromString(keySerializer, this)
+
+    init {
+        runBlocking(DatabaseCoroutineContext) {
+            helper.writableTransaction {
+                createTable(
+                    tableName,
+                    internalId to internalIdType,
+                    idColumnName to ColumnType.Text.NOT_NULLABLE,
+                    valueColumnName to ColumnType.Text.NULLABLE
+                )
+            }
+        }
+    }
+
+    override suspend fun add(toAdd: Map<Key, List<Value>>) {
+        val added = mutableListOf<Pair<Key, Value>>()
+        helper.writableTransaction {
+            toAdd.forEach { (k, values) ->
+                values.forEach { v ->
+                    insert(
+                        tableName,
+                        null,
+                        contentValuesOf(
+                            idColumnName to k.asId(),
+                            valueColumnName to v.asValue()
+                        )
+                    ).also {
+                        if (it != -1L) {
+                            added.add(k to v)
+                        }
+                    }
+                }
+            }
+        }
+        added.forEach { _onNewValue.emit(it) }
+    }
+
+    override suspend fun clear(k: Key) {
+        helper.writableTransaction {
+            delete(tableName, "$idColumnName=?", arrayOf(k.asId()))
+        }.also {
+            if (it > 0) {
+                _onDataCleared.emit(k)
+            }
+        }
+    }
+
+    override suspend fun set(toSet: Map<Key, List<Value>>) {
+        val (clearedKeys, inserted) = helper.writableTransaction {
+            toSet.mapNotNull { (k, _) ->
+                if (delete(tableName, "$idColumnName=?", arrayOf(k.asId())) > 0) {
+                    k
+                } else {
+                    null
+                }
+            } to toSet.flatMap { (k, values) ->
+                values.map { v ->
+                    insert(
+                        tableName,
+                        null,
+                        contentValuesOf(idColumnName to k.asId(), valueColumnName to v.asValue())
+                    )
+                    k to v
+                }
+            }
+        }
+        clearedKeys.forEach { _onDataCleared.emit(it) }
+        inserted.forEach { newPair -> _onNewValue.emit(newPair) }
+    }
+
+    override suspend fun contains(k: Key): Boolean = helper.readableTransaction {
+        select(tableName, selection = "$idColumnName=?", selectionArgs = arrayOf(k.asId()), limit = FirstPagePagination(1).limitClause()).use {
+            it.count > 0
+        }
+    }
+
+    override suspend fun contains(k: Key, v: Value): Boolean = helper.readableTransaction {
+        select(
+            tableName,
+            selection = "$idColumnName=? AND $valueColumnName=?",
+            selectionArgs = arrayOf(k.asId(), v.asValue()),
+            limit = FirstPagePagination(1).limitClause()
+        ).use {
+            it.count > 0
+        }
+    }
+
+    override suspend fun count(): Long =helper.readableTransaction {
+        select(
+            tableName
+        ).use {
+            it.count
+        }
+    }.toLong()
+
+    override suspend fun count(k: Key): Long = helper.readableTransaction {
+        select(tableName, selection = "$idColumnName=?", selectionArgs = arrayOf(k.asId()), limit = FirstPagePagination(1).limitClause()).use {
+            it.count
+        }
+    }.toLong()
+
+    override suspend fun get(
+        k: Key,
+        pagination: Pagination,
+        reversed: Boolean
+    ): PaginationResult<Value> = count(k).let { count ->
+        val resultPagination = pagination.let { if (reversed) pagination.reverse(count) else pagination }
+        helper.readableTransaction {
+            select(
+                tableName,
+                selection = "$idColumnName=?",
+                selectionArgs = arrayOf(k.asId()),
+                limit = resultPagination.limitClause()
+            ).use { c ->
+                mutableListOf<Value>().also {
+                    if (c.moveToFirst()) {
+                        do {
+                            it.add(c.getString(valueColumnName).asValue())
+                        } while (c.moveToNext())
+                    }
+                }
+            }
+        }.createPaginationResult(
+            pagination,
+            count
+        )
+    }
+
+    override suspend fun keys(
+        pagination: Pagination,
+        reversed: Boolean
+    ): PaginationResult<Key> = count().let { count ->
+        val resultPagination = pagination.let { if (reversed) pagination.reverse(count) else pagination }
+        helper.readableTransaction {
+            select(
+                tableName,
+                limit = resultPagination.limitClause()
+            ).use { c ->
+                mutableListOf<Key>().also {
+                    if (c.moveToFirst()) {
+                        do {
+                            it.add(c.getString(idColumnName).asKey())
+                        } while (c.moveToNext())
+                    }
+                }
+            }
+        }.createPaginationResult(
+            pagination,
+            count
+        )
+    }
+
+    override suspend fun keys(
+        v: Value,
+        pagination: Pagination,
+        reversed: Boolean
+    ): PaginationResult<Key> = count().let { count ->
+        val resultPagination = pagination.let { if (reversed) pagination.reverse(count) else pagination }
+        helper.readableTransaction {
+            select(
+                tableName,
+                selection = "$valueColumnName=?",
+                selectionArgs = arrayOf(v.asValue()),
+                limit = resultPagination.limitClause()
+            ).use { c ->
+                mutableListOf<Key>().also {
+                    if (c.moveToFirst()) {
+                        do {
+                            it.add(c.getString(idColumnName).asKey())
+                        } while (c.moveToNext())
+                    }
+                }
+            }
+        }.createPaginationResult(
+            pagination,
+            count
+        )
+    }
+
+    override suspend fun remove(toRemove: Map<Key, List<Value>>) {
+        helper.writableTransaction {
+            toRemove.flatMap { (k, vs) ->
+                vs.mapNotNullA { v ->
+                    if (delete(tableName, "$idColumnName=? AND $valueColumnName=?", arrayOf(k.asId(), v.asValue())) > 0) {
+                        k to v
+                    } else {
+                        null
+                    }
+                }
+            }
+        }.forEach { (k, v) ->
+            _onValueRemoved.emit(k to v)
+        }
+    }
+}

repos/common/src/main/kotlin/dev/inmo/micro_utils/repos/versions/AndroidSQLStandardVersionsRepoProxy.kt

@@ -0,0 +1,63 @@
+package dev.inmo.micro_utils.repos.versions
+
+import android.database.sqlite.SQLiteOpenHelper
+import androidx.core.content.contentValuesOf
+import dev.inmo.micro_utils.repos.*
+import kotlinx.coroutines.runBlocking
+
+/**
+ * Will create [VersionsRepo] based on [SQLiteOpenHelper] with table inside of [database]
+ */
+@Suppress("NOTHING_TO_INLINE")
+inline fun versionsRepo(database: SQLiteOpenHelper): VersionsRepo<SQLiteOpenHelper> = StandardVersionsRepo(
+    AndroidSQLStandardVersionsRepoProxy(database)
+)
+
+class AndroidSQLStandardVersionsRepoProxy(
+    override val database: SQLiteOpenHelper
+) : StandardVersionsRepoProxy<SQLiteOpenHelper> {
+    private val tableName: String = "AndroidSQLStandardVersionsRepo"
+    private val tableNameColumnName = "tableName"
+    private val tableVersionColumnName = "version"
+
+    init {
+        runBlocking(DatabaseCoroutineContext) {
+            database.writableTransaction {
+                createTable(
+                    tableName,
+                    tableNameColumnName to ColumnType.Text.NOT_NULLABLE,
+                    tableVersionColumnName to ColumnType.Numeric.INTEGER()
+                )
+            }
+        }
+    }
+
+    override suspend fun getTableVersion(tableName: String): Int? = database.writableTransaction {
+        select(
+            this@AndroidSQLStandardVersionsRepoProxy.tableName,
+            selection = "$tableNameColumnName=?",
+            selectionArgs = arrayOf(tableName),
+            limit = limitClause(1)
+        ).use {
+            if (it.moveToFirst()) {
+                it.getInt(tableVersionColumnName)
+            } else {
+                null
+            }
+        }
+    }
+
+    override suspend fun updateTableVersion(tableName: String, version: Int) {
+        database.writableTransaction {
+            val updated = update(
+                this@AndroidSQLStandardVersionsRepoProxy.tableName,
+                contentValuesOf(tableVersionColumnName to version),
+                "$tableNameColumnName=?",
+                arrayOf(tableName)
+            ) > 0
+            if (!updated) {
+                insert(this@AndroidSQLStandardVersionsRepoProxy.tableName, null, contentValuesOf(tableNameColumnName to tableName, tableVersionColumnName to version))
+            }
+        }
+    }
+}

repos/common/src/main/kotlin/dev/inmo/micro_utils/repos/versions/AndroidSharedPreferencesStandardVersionsRepoProxy.kt

@@ -0,0 +1,49 @@
+@file:Suppress("NOTHING_TO_INLINE")
+
+package dev.inmo.micro_utils.repos.versions
+
+import android.content.Context
+import android.database.sqlite.SQLiteOpenHelper
+import androidx.core.content.contentValuesOf
+import dev.inmo.micro_utils.repos.*
+import dev.inmo.micro_utils.repos.keyvalue.keyValueStore
+import kotlinx.coroutines.runBlocking
+
+/**
+ * Will create [VersionsRepo] based on [T], but versions will be stored in [StandardKeyValueRepo]
+ *
+ * @receiver Will be used to create [KeyValueBasedVersionsRepoProxy] via [keyValueStore] and pass it to [StandardVersionsRepo]
+ *
+ * @see [KeyValueBasedVersionsRepoProxy]
+ * @see [keyValueStore]
+ */
+inline fun <T> Context.versionsKeyValueRepo(
+    database: T
+): VersionsRepo<T> = StandardVersionsRepo(
+    KeyValueBasedVersionsRepoProxy(
+        keyValueStore("SPVersionsRepo"),
+        database
+    )
+)
+/**
+ * Will create [VersionsRepo] based on [SQLiteOpenHelper], but versions will be stored in [StandardKeyValueRepo]
+ *
+ * @receiver Will be used to create [StandardKeyValueRepo] via [keyValueStore] and pass it to [StandardVersionsRepo]
+ *
+ * @see [keyValueStore]
+ */
+inline fun Context.versionsKeyValueRepoForSQL(
+    database: SQLiteOpenHelper
+) = versionsKeyValueRepo(database)
+
+/**
+ * Will create [VersionsRepo] based on [SQLiteOpenHelper], but versions will be stored in [StandardKeyValueRepo]
+ *
+ * @param context Will be used to create [StandardKeyValueRepo] via [keyValueStore] and pass it to [StandardVersionsRepo]
+ *
+ * @see [keyValueStore]
+ */
+inline fun versionsRepo(
+    context: Context,
+    database: SQLiteOpenHelper
+) = context.versionsKeyValueRepoForSQL(database)

repos/exposed/src/jvmMain/kotlin/dev/inmo/micro_utils/repos/exposed/AbstractExposedWriteCRUDRepo.kt

@@ -2,7 +2,6 @@ package dev.inmo.micro_utils.repos.exposed
 
 import dev.inmo.micro_utils.repos.UpdatedValuePair
 import dev.inmo.micro_utils.repos.WriteStandardCRUDRepo
-import kotlinx.coroutines.channels.BroadcastChannel
 import kotlinx.coroutines.flow.*
 import org.jetbrains.exposed.sql.*
 import org.jetbrains.exposed.sql.statements.InsertStatement
@@ -25,8 +24,10 @@ abstract class AbstractExposedWriteCRUDRepo<ObjectType, IdType, InputValueType>(
     override val updatedObjectsFlow: Flow<ObjectType> = updateObjectsChannel.asSharedFlow()
     override val deletedObjectsIdsFlow: Flow<IdType> = deleteObjectsIdsChannel.asSharedFlow()
 
+    @Deprecated("Will be removed in near major update. Override open fun with the same name instead")
     abstract val InsertStatement<Number>.asObject: ObjectType
-    abstract val selectByIds: SqlExpressionBuilder.(List<out IdType>) -> Op<Boolean>
+    protected open fun InsertStatement<Number>.asObject(value: InputValueType): ObjectType = asObject
+    abstract val selectByIds: SqlExpressionBuilder.(List<IdType>) -> Op<Boolean>
 
     protected abstract fun insert(value: InputValueType, it: InsertStatement<Number>)
     protected abstract fun update(id: IdType, value: InputValueType, it: UpdateStatement)
@@ -34,7 +35,7 @@ abstract class AbstractExposedWriteCRUDRepo<ObjectType, IdType, InputValueType>(
     protected open suspend fun onBeforeCreate(value: List<InputValueType>) {}
     private fun createWithoutNotification(value: InputValueType): ObjectType {
         return transaction(database) {
-            insert { insert(value, it) }.asObject
+            insert { insert(value, it) }.asObject(value)
         }
     }
 
@@ -42,10 +43,8 @@ abstract class AbstractExposedWriteCRUDRepo<ObjectType, IdType, InputValueType>(
         onBeforeCreate(values)
         return transaction(db = database) {
             values.map { value -> createWithoutNotification(value) }
-        }.also {
-            it.forEach {
-                newObjectsChannel.emit(it)
-            }
+        }.onEach {
+            newObjectsChannel.emit(it)
         }
     }
 
@@ -83,13 +82,9 @@ abstract class AbstractExposedWriteCRUDRepo<ObjectType, IdType, InputValueType>(
         return (
             transaction(db = database) {
                 values.map { (id, value) -> updateWithoutNotification(id, value) }
-            }.filter {
-                it != null
-            } as List<ObjectType>
-        ).also {
-            it.forEach {
-                updateObjectsChannel.emit(it)
-            }
+            }.filterNotNull()
+        ).onEach {
+            updateObjectsChannel.emit(it)
         }
     }
     protected open suspend fun onBeforeDelete(ids: List<IdType>) {}