plus for flows

0.3.2

.gitignore

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

.travis.yml

@@ -1,10 +1,23 @@
-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

CHANGELOG.md

@@ -1,5 +1,140 @@
 # Changelog
 
+## 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
+
+* `Repos`:
+    * `Common`:
+        * `KeyValue` and `OneToMany` repos lost their deprecated methods
+        * `OneToMany` write repos got additional extensions for mutation of repo
+        * `KeyValue` write repos got additional extensions for mutation of repo
+        * New interface `MapperRepo` and new classes which are using this:
+            * `KeyValue`
+                * `MapperReadStandardKeyValueRepo`
+                * `MapperWriteStandardKeyValueRepo`
+                * `MapperStandardKeyValueRepo`
+            * `OneToMany`
+                * `MapperReadOneToManyKeyValueRepo`
+                * `MapperWriteOneToManyKeyValueRepo`
+                * `MapperOneToManyKeyValueRepo`
+    * `Exposed`:
+        * CRUD realizations replaced their channels to shared flows
+
+## 0.2.7
+
+* `Versions`:
+    * `Coroutines`: `1.4.0` -> `1.4.1`
+* `Repos`:
+    * `WriteStandardKeyValueRepo` got new methods `set` and `unset` with collections
+    * All standard realizations of repos got collections methods realizations
+    * All old usages of `BroadcastFlow` and `BroadcastChannel` has been replaced with `MutableSharedFlow`
+    * `Ktor`:
+        * `Server`:
+            * Fixed incorrect answer for `keyvalue`
+
+## 0.2.6
+
+* `Pagination`
+    * Fixes in function `List#paginate`
+    * Extension property `Pagination#lastIndexExclusive`
+
+## 0.2.5
+
+* `Coroutines`
+    * Function `safelyWithoutExceptions`
+    * Extension `CoroutineScope#safeActor`
+
+## 0.2.4
+
+* `Versions`
+    * `Serialization`: `1.0.0` -> `1.0.1`
+* `Common`
+    * Full rework of `DiffUtils`
+        * Data class `Diff` has been added
+        * Extension `Iterable#calculateDiff` has been added
+            * Extension `Iterable#calculateStrictDiff` as replacement for `Iterable#calculateDiff` with
+            `strictComparison` mode enabled
+            * Functions `Diff` (as analog of `Iterable#calculateDiff`) and `StrictDiff` (as analog of
+            `Iterable#calculateStrictDiff`)
+* `Coroutines`
+    * `BroadcastFlow` now is deprecated
+    * `BroadcastStateFlow` now is deprecated
+    * New extensions for `Flow`s:
+        * `Flow#subscribe`
+        * `Flow#subscribeSafely`
+        * `Flow#subscribeSafelyWithoutExceptions`
+
+## 0.2.3
+
+* `Versions`
+    * `Coroutines`: `1.3.9` -> `1.4.0`
+    * `Exposed`: `0.27.1` -> `0.28.1`
+* `Common`
+    * `K/JS`
+        * Add several extensions for `Element` objects to detect that object is on screen viewport
+        * Add several extensions for `Element` objects to detect object visibility
+* `Coroutines`
+    * `BroadcastStateFlow` now use different strategy for getting of state and implements `replayCache`
+
+## 0.2.2
+
+* `Repos`
+    * `Common`
+        * Several new methods `ReadOneToManyKeyValueRepo#getAll`
+        * Several new method `WriteOneToManyKeyValueRepo#add` and several extensions
+        * Several new method `WriteOneToManyKeyValueRepo#remove` and several extensions
+
 ## 0.2.1
 
 * `Pagination`
@@ -7,6 +142,7 @@
         * Extension `Pagination#reverse` has been added
         * Factory `PaginationByIndexes`
         * Shortcut `calculatePagesNumber` with reversed parameters
+        * Value `emptyPagination` for empty `SimplePagination` cases
 
 ## 0.2.0
 

android/recyclerview/build.gradle

@@ -0,0 +1,23 @@
+plugins {
+    id "org.jetbrains.kotlin.multiplatform"
+    id "org.jetbrains.kotlin.plugin.serialization"
+    id "com.android.library"
+    id "kotlin-android-extensions"
+}
+
+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 +1,47 @@
+package dev.inmo.micro_utils.android.recyclerview
+
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.RecyclerView
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.flow.*
+
+fun RecyclerView.lastVisibleItemFlow(
+    completingScope: CoroutineScope
+): Flow<Int> {
+    val lastVisibleElementFun: () -> Int = (layoutManager as? LinearLayoutManager) ?.let { it::findLastVisibleItemPosition } ?: error("Currently supported only linear 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 +1,20 @@
 buildscript {
     repositories {
-        mavenLocal()
         jcenter()
+        google()
         mavenCentral()
+        mavenLocal()
         maven { url "https://plugins.gradle.org/m2/" }
     }
 
     dependencies {
+        classpath 'com.android.tools.build:gradle:4.0.0'
         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 +23,7 @@ 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 +1,8 @@
 plugins {
     id "org.jetbrains.kotlin.multiplatform"
     id "org.jetbrains.kotlin.plugin.serialization"
+    id "com.android.library"
+    id "kotlin-android-extensions"
 }
 
 apply from: "$mppProjectWithSerializationPresetPath"

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

@@ -1,10 +1,151 @@
+@file:Suppress("NOTHING_TO_INLINE")
+
 package dev.inmo.micro_utils.common
 
-fun <T> Iterable<T>.syncWith(
-    other: Iterable<T>,
-    removed: (List<T>) -> Unit = {},
-    added: (List<T>) -> Unit = {}
-) {
-    removed(filter { it !in other })
-    added(other.filter { it !in this })
+private inline fun <T> getObject(
+    additional: MutableList<T>,
+    iterator: Iterator<T>
+): T? = when {
+    additional.isNotEmpty() -> additional.removeFirst()
+    iterator.hasNext() -> iterator.next()
+    else -> null
 }
+
+/**
+ * Diff object which contains information about differences between two [Iterable]s
+ *
+ * @see calculateDiff
+ */
+data class Diff<T> internal constructor(
+    val removed: List<IndexedValue<T>>,
+    /**
+     * Old-New values pairs
+     */
+    val replaced: List<Pair<IndexedValue<T>, IndexedValue<T>>>,
+    val added: List<IndexedValue<T>>
+)
+
+private inline fun <T> performChanges(
+    potentialChanges: MutableList<Pair<IndexedValue<T>?, IndexedValue<T>?>>,
+    additionalsInOld: MutableList<T>,
+    additionalsInNew: MutableList<T>,
+    changedList: MutableList<Pair<IndexedValue<T>, IndexedValue<T>>>,
+    removedList: MutableList<IndexedValue<T>>,
+    addedList: MutableList<IndexedValue<T>>,
+    strictComparison: Boolean
+) {
+    var i = -1
+    val (oldObject, newObject) = potentialChanges.lastOrNull() ?: return
+    for ((old, new) in potentialChanges.take(potentialChanges.size - 1)) {
+        i++
+        val oldOneEqualToNewObject = old ?.value === newObject ?.value || (old ?.value == newObject ?.value && !strictComparison)
+        val newOneEqualToOldObject = new ?.value === oldObject ?.value || (new ?.value == oldObject ?.value && !strictComparison)
+        if (oldOneEqualToNewObject || newOneEqualToOldObject) {
+            changedList.addAll(
+                potentialChanges.take(i).mapNotNull {
+                    if (it.first != null && it.second != null) it as Pair<IndexedValue<T>, IndexedValue<T>> else null
+                }
+            )
+            val newPotentials = potentialChanges.drop(i).take(potentialChanges.size - i)
+            when {
+                oldOneEqualToNewObject -> {
+                    newPotentials.first().second ?.let { addedList.add(it) }
+                    newPotentials.drop(1).take(newPotentials.size - 2).forEach { (oldOne, newOne) ->
+                        addedList.add(newOne!!)
+                        oldOne ?.let { additionalsInOld.add(oldOne.value) }
+                    }
+                    if (newPotentials.size > 1) {
+                        newPotentials.last().first ?.value ?.let { additionalsInOld.add(it) }
+                    }
+                }
+                newOneEqualToOldObject -> {
+                    newPotentials.first().first ?.let { removedList.add(it) }
+                    newPotentials.drop(1).take(newPotentials.size - 2).forEach { (oldOne, newOne) ->
+                        removedList.add(oldOne!!)
+                        newOne ?.let { additionalsInNew.add(newOne.value) }
+                    }
+                    if (newPotentials.size > 1) {
+                        newPotentials.last().second ?.value ?.let { additionalsInNew.add(it) }
+                    }
+                }
+            }
+            potentialChanges.clear()
+            return
+        }
+    }
+    if (potentialChanges.isNotEmpty() && potentialChanges.last().let { it.first == null && it.second == null }) {
+        potentialChanges.dropLast(1).forEach { (old, new) ->
+            when {
+                old != null && new != null -> changedList.add(old to new)
+                old != null -> removedList.add(old)
+                new != null -> addedList.add(new)
+            }
+        }
+    }
+}
+
+/**
+ * Calculating [Diff] object
+ *
+ * @param strictComparison If this parameter set to true, objects which are not equal by links will be used as different
+ * objects. For example, in case of two "Example" string they will be equal by value, but CAN be different by links
+ */
+fun <T> Iterable<T>.calculateDiff(
+    other: Iterable<T>,
+    strictComparison: Boolean = false
+): Diff<T> {
+    var i = -1
+    var j = -1
+
+    val additionalInOld = mutableListOf<T>()
+    val additionalInNew = mutableListOf<T>()
+
+    val oldIterator = iterator()
+    val newIterator = other.iterator()
+
+    val potentiallyChangedObjects = mutableListOf<Pair<IndexedValue<T>?, IndexedValue<T>?>>()
+    val changedObjects = mutableListOf<Pair<IndexedValue<T>, IndexedValue<T>>>()
+    val addedObjects = mutableListOf<IndexedValue<T>>()
+    val removedObjects = mutableListOf<IndexedValue<T>>()
+
+    while (true) {
+        i++
+        j++
+
+        val oldObject = getObject(additionalInOld, oldIterator)
+        val newObject = getObject(additionalInNew, newIterator)
+
+        if (oldObject == null && newObject == null) {
+            break
+        }
+
+        when {
+            oldObject === newObject || (oldObject == newObject && !strictComparison) -> {
+                changedObjects.addAll(potentiallyChangedObjects.map { it as Pair<IndexedValue<T>, IndexedValue<T>> })
+                potentiallyChangedObjects.clear()
+            }
+            else -> {
+                potentiallyChangedObjects.add(oldObject ?.let { IndexedValue(i, oldObject) } to newObject ?.let { IndexedValue(j, newObject) })
+                val previousOldsAdditionsSize = additionalInOld.size
+                val previousNewsAdditionsSize = additionalInNew.size
+                performChanges(potentiallyChangedObjects, additionalInOld, additionalInNew, changedObjects, removedObjects, addedObjects, strictComparison)
+                i -= (additionalInOld.size - previousOldsAdditionsSize)
+                j -= (additionalInNew.size - previousNewsAdditionsSize)
+            }
+        }
+    }
+    potentiallyChangedObjects.add(null to null)
+    performChanges(potentiallyChangedObjects, additionalInOld, additionalInNew, changedObjects, removedObjects, addedObjects, strictComparison)
+
+    return Diff(removedObjects.toList(), changedObjects.toList(), addedObjects.toList())
+}
+
+inline fun <T> Diff(old: Iterable<T>, new: Iterable<T>) = old.calculateDiff(new)
+inline fun <T> StrictDiff(old: Iterable<T>, new: Iterable<T>) = old.calculateDiff(new, true)
+
+/**
+ * This method call [calculateDiff] with strict mode enabled
+ */
+inline fun <T> Iterable<T>.calculateStrictDiff(
+    other: Iterable<T>
+) = calculateDiff(other, strictComparison = true)

common/src/commonTest/kotlin/dev/inmo/micro_utils/common/DiffUtilsTests.kt

@@ -0,0 +1,76 @@
+package dev.inmo.micro_utils.common
+
+import kotlin.math.floor
+import kotlin.test.Test
+import kotlin.test.assertEquals
+
+class DiffUtilsTests {
+    @Test
+    fun testThatSimpleRemoveWorks() {
+        val oldList = (0 until 10).toList()
+        val withIndex = oldList.withIndex()
+
+        for (count in 1 .. (floor(oldList.size.toFloat() / 2).toInt())) {
+            for ((i, v) in withIndex) {
+                if (i + count > oldList.lastIndex) {
+                    continue
+                }
+                val removedSublist = oldList.subList(i, i + count)
+                oldList.calculateDiff(oldList - removedSublist).apply {
+                    assertEquals(
+                        removedSublist.mapIndexed { j, o -> IndexedValue(i + j, o) },
+                        removed
+                    )
+                }
+            }
+        }
+    }
+
+    @Test
+    fun testThatSimpleAddWorks() {
+        val oldList = (0 until 10).map { it.toString() }
+        val withIndex = oldList.withIndex()
+
+        for (count in 1 .. (floor(oldList.size.toFloat() / 2).toInt())) {
+            for ((i, v) in withIndex) {
+                if (i + count > oldList.lastIndex) {
+                    continue
+                }
+                val addedSublist = oldList.subList(i, i + count).map { "added$it" }
+                val mutable = oldList.toMutableList()
+                mutable.addAll(i, addedSublist)
+                oldList.calculateDiff(mutable).apply {
+                    assertEquals(
+                        addedSublist.mapIndexed { j, o -> IndexedValue(i + j, o) },
+                        added
+                    )
+                }
+            }
+        }
+    }
+
+    @Test
+    fun testThatSimpleChangesWorks() {
+        val oldList = (0 until 10).map { it.toString() }
+        val withIndex = oldList.withIndex()
+
+        for (step in 0 until oldList.size) {
+            for ((i, v) in withIndex) {
+                val mutable = oldList.toMutableList()
+                val changes = (
+                    if (step == 0) i until oldList.size else (i until oldList.size step step)
+                ).map { index ->
+                    IndexedValue(index, mutable[index]) to IndexedValue(index, "changed$index").also {
+                        mutable[index] = it.value
+                    }
+                }
+                oldList.calculateDiff(mutable).apply {
+                    assertEquals(
+                        changes,
+                        replaced
+                    )
+                }
+            }
+        }
+    }
+}

common/src/jsMain/kotlin/dev/inmo/micro_utils/common/HtmlElementOnScreen.kt

@@ -0,0 +1,43 @@
+package dev.inmo.micro_utils.common
+
+import kotlinx.browser.window
+import org.w3c.dom.DOMRect
+import org.w3c.dom.Element
+
+val DOMRect.isOnScreenByLeftEdge: Boolean
+    get() = left >= 0 && left <= window.innerWidth
+inline val Element.isOnScreenByLeftEdge
+    get() = getBoundingClientRect().isOnScreenByLeftEdge
+
+val DOMRect.isOnScreenByRightEdge: Boolean
+    get() = right >= 0 && right <= window.innerWidth
+inline val Element.isOnScreenByRightEdge
+    get() = getBoundingClientRect().isOnScreenByRightEdge
+
+internal val DOMRect.isOnScreenHorizontally: Boolean
+    get() = isOnScreenByLeftEdge || isOnScreenByRightEdge
+
+
+val DOMRect.isOnScreenByTopEdge: Boolean
+    get() = top >= 0 && top <= window.innerHeight
+inline val Element.isOnScreenByTopEdge
+    get() = getBoundingClientRect().isOnScreenByTopEdge
+
+val DOMRect.isOnScreenByBottomEdge: Boolean
+    get() = bottom >= 0 && bottom <= window.innerHeight
+inline val Element.isOnScreenByBottomEdge
+    get() = getBoundingClientRect().isOnScreenByBottomEdge
+
+internal val DOMRect.isOnScreenVertically: Boolean
+    get() = isOnScreenByLeftEdge || isOnScreenByRightEdge
+
+
+val DOMRect.isOnScreenFully: Boolean
+    get() = isOnScreenByLeftEdge && isOnScreenByTopEdge && isOnScreenByRightEdge && isOnScreenByBottomEdge
+val Element.isOnScreenFully: Boolean
+    get() = getBoundingClientRect().isOnScreenFully
+
+val DOMRect.isOnScreen: Boolean
+    get() = isOnScreenFully || (isOnScreenHorizontally && isOnScreenVertically)
+inline val Element.isOnScreen: Boolean
+    get() = getBoundingClientRect().isOnScreen

common/src/jsMain/kotlin/dev/inmo/micro_utils/common/Visibility.kt

@@ -0,0 +1,48 @@
+package dev.inmo.micro_utils.common
+
+import kotlinx.browser.window
+import org.w3c.dom.Element
+import org.w3c.dom.css.CSSStyleDeclaration
+
+sealed class Visibility
+object Visible : Visibility()
+object Invisible : Visibility()
+object Gone : Visibility()
+
+var CSSStyleDeclaration.visibilityState: Visibility
+    get() = when {
+        display == "none" -> Gone
+        visibility == "hidden" -> Invisible
+        else -> Visible
+    }
+    set(value) {
+        when (value) {
+            Visible -> {
+                if (display == "none") {
+                    display = "initial"
+                }
+                visibility = "visible"
+            }
+            Invisible -> {
+                if (display == "none") {
+                    display = "initial"
+                }
+                visibility = "hidden"
+            }
+            Gone -> {
+                display = "none"
+            }
+        }
+    }
+inline var Element.visibilityState: Visibility
+    get() = window.getComputedStyle(this).visibilityState
+    set(value) {
+        window.getComputedStyle(this).visibilityState = value
+    }
+
+inline val Element.isVisible: Boolean
+    get() = visibilityState == Visible
+inline val Element.isInvisible: Boolean
+    get() = visibilityState == Invisible
+inline val Element.isGone: Boolean
+    get() = visibilityState == Gone

common/src/main/AndroidManifest.xml

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

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>

coroutines/build.gradle

@@ -1,6 +1,8 @@
 plugins {
     id "org.jetbrains.kotlin.multiplatform"
     id "org.jetbrains.kotlin.plugin.serialization"
+    id "com.android.library"
+    id "kotlin-android-extensions"
 }
 
 apply from: "$mppProjectWithSerializationPresetPath"
@@ -12,5 +14,10 @@ kotlin {
                 api "org.jetbrains.kotlinx:kotlinx-coroutines-core:$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

@@ -17,3 +17,15 @@ fun <T> CoroutineScope.actor(
     return channel
 }
 
+inline fun <T> CoroutineScope.safeActor(
+    channelCapacity: Int = Channel.UNLIMITED,
+    noinline onException: ExceptionHandler<Unit> = {},
+    crossinline block: suspend (T) -> Unit
+): Channel<T> = actor(
+    channelCapacity
+) {
+    safely(onException) {
+        block(it)
+    }
+}
+

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

@@ -1,21 +0,0 @@
-package dev.inmo.micro_utils.coroutines
-
-import kotlinx.coroutines.channels.*
-import kotlinx.coroutines.flow.*
-
-@Suppress("FunctionName")
-fun <T> BroadcastFlow(
-    internalChannelSize: Int = Channel.BUFFERED
-): BroadcastFlow<T> {
-    val channel = BroadcastChannel<T>(internalChannelSize)
-
-    return BroadcastFlow(
-        channel,
-        channel.asFlow()
-    )
-}
-
-class BroadcastFlow<T> internal constructor(
-    private val channel: BroadcastChannel<T>,
-    private val flow: Flow<T>
-): Flow<T> by flow, SendChannel<T> by channel

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

@@ -1,33 +0,0 @@
-package dev.inmo.micro_utils.coroutines
-
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.channels.BroadcastChannel
-import kotlinx.coroutines.channels.Channel
-import kotlinx.coroutines.flow.*
-
-class BroadcastStateFlow<T> internal constructor(
-    parentFlow: Flow<T>,
-    private val stateGetter: () -> T
-) : StateFlow<T>, Flow<T> by parentFlow {
-    override val value: T
-        get() = stateGetter()
-}
-
-fun <T> BroadcastChannel<T>.asStateFlow(value: T, scope: CoroutineScope): StateFlow<T> = asFlow().let {
-    var state: T = value
-    it.onEach { state = it }.launchIn(scope)
-    BroadcastStateFlow(it) {
-        state
-    }
-}
-
-fun <T> BroadcastChannel<T?>.asStateFlow(scope: CoroutineScope): StateFlow<T?> = asStateFlow(null, scope)
-
-fun <T> broadcastStateFlow(initial: T, scope: CoroutineScope, channelSize: Int = Channel.BUFFERED) = BroadcastChannel<T>(
-    channelSize
-).let {
-    it to it.asStateFlow(initial, scope)
-}
-
-fun <T> broadcastStateFlow(scope: CoroutineScope, channelSize: Int = Channel.BUFFERED) = broadcastStateFlow<T?>(null, scope, channelSize)
-

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

@@ -0,0 +1,37 @@
+@file:Suppress("NOTHING_TO_INLINE")
+
+package dev.inmo.micro_utils.coroutines
+
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.flow.*
+
+/**
+ * Shortcut for chain if [Flow.onEach] and [Flow.launchIn]
+ */
+inline fun <T> Flow<T>.subscribe(scope: CoroutineScope, noinline block: suspend (T) -> Unit) = onEach(block).launchIn(scope)
+
+/**
+ * Use [subscribe], but all [block]s will be called inside of [safely] function.
+ * Use [onException] to set up your reaction for [Throwable]s
+ */
+inline fun <T> Flow<T>.subscribeSafely(
+    scope: CoroutineScope,
+    noinline onException: ExceptionHandler<Unit> = { throw it },
+    noinline block: suspend (T) -> Unit
+) = subscribe(scope) {
+    safely(onException) {
+        block(it)
+    }
+}
+
+/**
+ * Use [subscribeSafelyWithoutExceptions], but all exceptions inside of [safely] will be skipped
+ */
+inline fun <T> Flow<T>.subscribeSafelyWithoutExceptions(
+    scope: CoroutineScope,
+    noinline block: suspend (T) -> Unit
+) = subscribeSafely(
+    scope,
+    {},
+    block
+)

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

@@ -21,3 +21,10 @@ suspend inline fun <T> safely(
         onException(e)
     }
 }
+
+/**
+ * Shortcut for [safely] without exception handler (instead of this you will receive null as a result)
+ */
+suspend inline fun <T> safelyWithoutExceptions(
+    noinline block: suspend CoroutineScope.() -> T
+): T? = safely({ null }, block)

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 +1,38 @@
+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

@@ -0,0 +1,135 @@
+plugins {
+    id "org.jetbrains.kotlin.multiplatform"
+    id "org.jetbrains.kotlin.plugin.serialization"
+    id "com.android.library"
+    id "kotlin-android-extensions"
+    id "org.jetbrains.dokka"
+}
+
+repositories {
+    mavenLocal()
+    jcenter()
+    google()
+    mavenCentral()
+}
+
+kotlin {
+    jvm()
+    js(BOTH) {
+        browser()
+        nodejs()
+    }
+    android {}
+
+    sourceSets {
+        commonMain {
+            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") }
+                        && 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
+                    }
+                }
+            }
+        }
+    }
+}
+
+private List<SourceDirectorySet> findSourcesWithName(String... approximateNames) {
+    return parent.subprojects
+            .findAll { it != project && it.hasProperty("kotlin") }
+            .collectMany { it.kotlin.sourceSets }
+            .findAll { sourceSet ->
+                approximateNames.any { nameToFilter ->
+                    sourceSet.name.contains(nameToFilter)
+                }
+            }.collect { it.kotlin }
+}
+
+tasks.dokkaHtml {
+    dokkaSourceSets {
+        configureEach {
+            skipDeprecated.set(true)
+
+            sourceLink {
+                localDirectory.set(file("./"))
+                remoteUrl.set(new URL("https://github.com/InsanusMokrassar/MicroUtils/blob/master/"))
+                remoteLineSuffix.set("#L")
+            }
+        }
+
+        named("commonMain") {
+            sourceRoots.setFrom(findSourcesWithName("commonMain"))
+        }
+
+        named("jsMain") {
+            sourceRoots.setFrom(findSourcesWithName("jsMain", "commonMain"))
+        }
+
+        named("jvmMain") {
+            sourceRoots.setFrom(findSourcesWithName("jvmMain", "commonMain"))
+        }
+
+        named("androidMain") {
+            sourceRoots.setFrom(findSourcesWithName("androidMain", "commonMain"))
+        }
+    }
+}
+
+apply from: "$defaultAndroidSettingsPresetPath"

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

@@ -3,13 +3,16 @@ org.gradle.parallel=true
 kotlin.js.generate.externals=true
 kotlin.incremental=true
 kotlin.incremental.js=true
+android.useAndroidX=true
+android.enableJetifier=true
+org.gradle.jvmargs=-Xmx3072m
 
 kotlin_version=1.4.10
-kotlin_coroutines_version=1.3.9
-kotlin_serialisation_core_version=1.0.0
-kotlin_exposed_version=0.27.1
+kotlin_coroutines_version=1.4.1
+kotlin_serialisation_core_version=1.0.1
+kotlin_exposed_version=0.28.1
 
-ktor_version=1.4.1
+ktor_version=1.4.2
 
 klockVersion=1.12.1
 
@@ -18,5 +21,25 @@ github_release_plugin_version=2.2.12
 
 uuidVersion=0.2.2
 
+# ANDROID
+
+core_ktx_version=1.3.2
+androidx_recycler_version=1.1.0
+
+android_minSdkVersion=19
+android_compileSdkVersion=30
+android_buildToolsVersion=30.0.2
+dexcount_version=2.0.0-RC1
+junit_version=4.12
+test_ext_junit_version=1.1.2
+espresso_core=3.3.0
+
+# Dokka
+
+dokka_version=1.4.0
+
+# Project data
+
 group=dev.inmo
-version=0.2.1
+version=0.3.3
+android_code_version=3

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.6.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.7-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

ktor/client/build.gradle

@@ -1,6 +1,8 @@
 plugins {
     id "org.jetbrains.kotlin.multiplatform"
     id "org.jetbrains.kotlin.plugin.serialization"
+    id "com.android.library"
+    id "kotlin-android-extensions"
 }
 
 apply from: "$mppProjectWithSerializationPresetPath"

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

@@ -4,7 +4,8 @@ import dev.inmo.micro_utils.coroutines.safely
 import dev.inmo.micro_utils.ktor.common.*
 import io.ktor.client.HttpClient
 import io.ktor.client.features.websocket.ws
-import io.ktor.http.cio.websocket.*
+import io.ktor.http.cio.websocket.Frame
+import io.ktor.http.cio.websocket.readBytes
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.channelFlow
 import kotlinx.serialization.DeserializationStrategy

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

@@ -4,7 +4,8 @@ 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.*
+import kotlinx.serialization.DeserializationStrategy
+import kotlinx.serialization.SerializationStrategy
 
 typealias BodyPair<T> = Pair<SerializationStrategy<T>, T>
 

ktor/client/src/main/AndroidManifest.xml

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

ktor/common/build.gradle

@@ -1,6 +1,8 @@
 plugins {
     id "org.jetbrains.kotlin.multiplatform"
     id "org.jetbrains.kotlin.plugin.serialization"
+    id "com.android.library"
+    id "kotlin-android-extensions"
 }
 
 apply from: "$mppProjectWithSerializationPresetPath"

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

@@ -22,13 +22,11 @@ fun <T> Route.includeWebsocketHandling(
     converter: (T) -> StandardKtorSerialInputData
 ) {
     webSocket(suburl) {
-//        println("connected")
         safely {
             flow.collect {
                 send(converter(it))
             }
         }
-//        println("disconnected")
     }
 }
 

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

@@ -7,8 +7,8 @@ import io.ktor.http.HttpStatusCode
 import io.ktor.request.receive
 import io.ktor.response.respond
 import io.ktor.response.respondBytes
-import io.ktor.util.toByteArray
-import kotlinx.serialization.*
+import kotlinx.serialization.DeserializationStrategy
+import kotlinx.serialization.SerializationStrategy
 
 suspend fun <T> ApplicationCall.unianswer(
     answerSerializer: SerializationStrategy<T>,

mime_types/build.gradle

@@ -1,6 +1,8 @@
 plugins {
     id "org.jetbrains.kotlin.multiplatform"
     id "org.jetbrains.kotlin.plugin.serialization"
+    id "com.android.library"
+    id "kotlin-android-extensions"
 }
 
 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 +1,8 @@
 plugins {
     id "org.jetbrains.kotlin.multiplatform"
     id "org.jetbrains.kotlin.plugin.serialization"
+    id "com.android.library"
+    id "kotlin-android-extensions"
 }
 
 apply from: "$mppProjectWithSerializationPresetPath"

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

@@ -28,6 +28,15 @@ interface Pagination {
 val Pagination.firstIndex: Int
     get() = page * size
 
+/**
+ * Last number in index of objects. In fact, one [Pagination] object represent data in next range:
+ *
+ * [[firstIndex], [lastIndex]]; That means, that for [Pagination] with [Pagination.size] == 10 and [Pagination.page] == 1
+ * you will retrieve [Pagination.firstIndex] == 10 and [Pagination.lastIndex] == 19. Here [Pagination.lastIndexExclusive] == 20
+ */
+val Pagination.lastIndexExclusive: Int
+    get() = firstIndex + size
+
 /**
  * Last number in index of objects. In fact, one [Pagination] object represent data in next range:
  *
@@ -35,7 +44,7 @@ val Pagination.firstIndex: Int
  * you will retrieve [Pagination.firstIndex] == 10 and [Pagination.lastIndex] == 19.
  */
 val Pagination.lastIndex: Int
-    get() = firstIndex + size - 1
+    get() = lastIndexExclusive - 1
 
 /**
  * Calculates pages count for given [datasetSize]

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

@@ -14,6 +14,8 @@ inline fun FirstPagePagination(size: Int = defaultMediumPageSize) =
         size = size
     )
 
+val emptyPagination = Pagination(0, 0)
+
 @Suppress("NOTHING_TO_INLINE")
 inline fun Pagination.nextPage() =
     SimplePagination(

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

@@ -21,7 +21,12 @@ fun <T> Iterable<T>.paginate(with: Pagination): PaginationResult<T> {
 }
 
 fun <T> List<T>.paginate(with: Pagination): PaginationResult<T> {
-    return subList(with.firstIndex, with.lastIndex + 1).createPaginationResult(
+    val firstIndex = maxOf(with.firstIndex, 0)
+    val lastIndex = minOf(with.lastIndexExclusive, size)
+    if (firstIndex > lastIndex) {
+        return emptyPaginationResult()
+    }
+    return subList(firstIndex, lastIndex).createPaginationResult(
         with,
         size.toLong()
     )

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

@@ -10,22 +10,16 @@ import dev.inmo.micro_utils.pagination.*
  *
  * @return Reversed version of this [Pagination]
  */
-fun Pagination.reverse(objectsCount: Long): SimplePagination {
-    val firstIndex = (objectsCount - (this.lastIndex + 1)).let {
-        when {
-            it < 0 -> it
-            it > objectsCount -> objectsCount
-            else -> it
-        }
-    }.toInt()
-    val lastIndex = (objectsCount - (this.firstIndex + 1)).let {
-        when {
-            it < 0 -> it
-            it > objectsCount -> objectsCount
-            else -> it
-        }
-    }.toInt()
-    return PaginationByIndexes(firstIndex, lastIndex)
+fun Pagination.reverse(datasetSize: Long): SimplePagination {
+    val pagesNumber = calculatePagesNumber(size, datasetSize)
+    val newPage = pagesNumber - page - 1
+    return when {
+        page < 0 || page >= pagesNumber -> emptyPagination
+        else -> Pagination(
+            newPage,
+            size
+        )
+    }
 }
 
 /**

pagination/common/src/commonTest/kotlin/dev/inmo/micro_utils/pagination/utils/PaginationReversing.kt

@@ -7,18 +7,18 @@ import kotlin.test.assertEquals
 class PaginationReversingTests {
     @Test
     fun testThatCommonCaseWorksOk() {
-        val pageSize = 2
-        val collectionSize = 8
-        val pages = calculatePage(collectionSize, pageSize)
+        val pageSize = 3
+        val collectionSize = 9
 
-        doWithPagination(FirstPagePagination(pageSize)) {
-            val reversed = it.reverse(collectionSize.toLong())
-            assertEquals(Pagination(calculatePage(collectionSize - it.firstIndex - it.size, it.size), it.size), reversed)
-            if (it.page < pages) {
-                it.nextPage()
-            } else {
-                null
-            }
-        }
+        assertEquals(Pagination(-1, pageSize).reverse(collectionSize), Pagination(0, 0))
+
+        val middleFirstIndex = collectionSize / 2 - pageSize / 2
+        val middleLastIndex = middleFirstIndex + pageSize - 1
+        assertEquals(
+            PaginationByIndexes(middleFirstIndex, middleLastIndex).reverse(collectionSize),
+            PaginationByIndexes(middleFirstIndex, middleLastIndex)
+        )
+
+        assertEquals(Pagination(calculatePagesNumber(collectionSize, pageSize), pageSize).reverse(collectionSize), Pagination(0, 0))
     }
 }

pagination/common/src/main/AndroidManifest.xml

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

pagination/ktor/common/build.gradle

@@ -1,6 +1,8 @@
 plugins {
     id "org.jetbrains.kotlin.multiplatform"
     id "org.jetbrains.kotlin.plugin.serialization"
+    id "com.android.library"
+    id "kotlin-android-extensions"
 }
 
 apply from: "$mppProjectWithSerializationPresetPath"

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

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

publish.gradle

@@ -13,7 +13,17 @@ bintray {
                 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")
+                    switch (directorySubname) {
+                        case "androidRelease":
+                            it.setPath("${project.name}-android/${project.version}/${project.name}-android-${project.version}.module")
+                            break
+                        case "androidDebug":
+                            it.setPath("${project.name}-android-debug/${project.version}/${project.name}-android-debug-${project.version}.module")
+                            break
+                        default:
+                            it.setPath("${project.name}-${directorySubname}/${project.version}/${project.name}-${directorySubname}-${project.version}.module")
+                            break
+                    }
                 }
             } else {
                 if (directorySubname == "kotlinMultiplatform" && it.getName() == "pom-default.xml") {

repos/common/build.gradle

@@ -1,6 +1,8 @@
 plugins {
     id "org.jetbrains.kotlin.multiplatform"
     id "org.jetbrains.kotlin.plugin.serialization"
+    id "com.android.library"
+    id "kotlin-android-extensions"
 }
 
 apply from: "$mppProjectWithSerializationPresetPath"
@@ -15,5 +17,13 @@ kotlin {
                 api "com.benasher44:uuid:$uuidVersion"
             }
         }
+
+        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

@@ -0,0 +1,21 @@
+package dev.inmo.micro_utils.repos
+
+interface MapperRepo<FromKey, FromValue, ToKey, ToValue> {
+    suspend fun FromKey.toOutKey() = this as ToKey
+    suspend fun FromValue.toOutValue() = this as 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

@@ -1,7 +1,6 @@
 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 ReadOneToManyKeyValueRepo<Key, Value> : Repo {
@@ -11,20 +10,76 @@ interface ReadOneToManyKeyValueRepo<Key, Value> : Repo {
     suspend fun contains(k: Key, v: Value): Boolean
     suspend fun count(k: Key): Long
     suspend fun count(): Long
+
+    suspend fun getAll(k: Key, reversed: Boolean = false): List<Value> = mutableListOf<Value>().also { list ->
+        doWithPagination {
+            get(k, it).also {
+                list.addAll(it.results)
+            }.nextPageIfNotEmpty()
+        }
+        if (reversed) {
+            list.reverse()
+        }
+    }
+
+    /**
+     * WARNING!!! THIS METHOD PROBABLY IS NOT EFFICIENT, USE WITH CAUTION
+     */
+    suspend fun getAll(reverseLists: Boolean = false): Map<Key, List<Value>> = mutableMapOf<Key, List<Value>>().also { map ->
+        doWithPagination {
+            keys(it).also { paginationResult ->
+                paginationResult.results.forEach { k ->
+                    map[k] = getAll(k, reverseLists)
+                }
+            }.nextPageIfNotEmpty()
+        }
+    }
 }
-@Deprecated("Renamed", ReplaceWith("ReadOneToManyKeyValueRepo", "dev.inmo.micro_utils.repos.ReadOneToManyKeyValueRepo"))
-typealias OneToManyReadKeyValueRepo<Key, Value> = ReadOneToManyKeyValueRepo<Key, Value>
 
 interface WriteOneToManyKeyValueRepo<Key, Value> : Repo {
     val onNewValue: Flow<Pair<Key, Value>>
     val onValueRemoved: Flow<Pair<Key, Value>>
     val onDataCleared: Flow<Key>
 
-    suspend fun add(k: Key, v: Value)
-    suspend fun remove(k: Key, v: Value)
+    suspend fun add(toAdd: Map<Key, List<Value>>)
+
+    suspend fun remove(toRemove: Map<Key, List<Value>>)
+
     suspend fun clear(k: Key)
 }
-@Deprecated("Renamed", ReplaceWith("WriteOneToManyKeyValueRepo", "dev.inmo.micro_utils.repos.WriteOneToManyKeyValueRepo"))
-typealias OneToManyWriteKeyValueRepo<Key, Value> = WriteOneToManyKeyValueRepo<Key, Value>
 
-interface OneToManyKeyValueRepo<Key, Value> : ReadOneToManyKeyValueRepo<Key, Value>, WriteOneToManyKeyValueRepo<Key, Value>
+suspend inline fun <Key, Value, REPO : WriteOneToManyKeyValueRepo<Key, Value>> REPO.add(
+    keysAndValues: List<Pair<Key, List<Value>>>
+) = add(keysAndValues.toMap())
+
+suspend inline fun <Key, Value, REPO : WriteOneToManyKeyValueRepo<Key, Value>> REPO.add(
+    vararg keysAndValues: Pair<Key, List<Value>>
+) = add(keysAndValues.toMap())
+
+suspend inline fun <Key, Value> WriteOneToManyKeyValueRepo<Key, Value>.add(
+    k: Key, v: List<Value>
+) = add(mapOf(k to v))
+
+suspend inline fun <Key, Value> WriteOneToManyKeyValueRepo<Key, Value>.add(
+    k: Key, vararg v: Value
+) = add(k, v.toList())
+
+interface OneToManyKeyValueRepo<Key, Value> : ReadOneToManyKeyValueRepo<Key, Value>, WriteOneToManyKeyValueRepo<Key, Value>
+
+suspend inline fun <Key, Value> WriteOneToManyKeyValueRepo<Key, Value>.remove(
+    keysAndValues: List<Pair<Key, List<Value>>>
+) = remove(keysAndValues.toMap())
+
+suspend inline fun <Key, Value> WriteOneToManyKeyValueRepo<Key, Value>.remove(
+    vararg keysAndValues: Pair<Key, List<Value>>
+) = remove(keysAndValues.toMap())
+
+suspend inline fun <Key, Value> WriteOneToManyKeyValueRepo<Key, Value>.remove(
+    k: Key,
+    v: List<Value>
+) = remove(mapOf(k to v))
+
+suspend inline fun <Key, Value> WriteOneToManyKeyValueRepo<Key, Value>.remove(
+    k: Key,
+    vararg v: Value
+) = remove(k, v.toList())

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

@@ -16,8 +16,20 @@ interface WriteStandardKeyValueRepo<Key, Value> : Repo {
     val onNewValue: Flow<Pair<Key, Value>>
     val onValueRemoved: Flow<Key>
 
-    suspend fun set(k: Key, v: Value)
-    suspend fun unset(k: Key)
+    suspend fun set(toSet: Map<Key, Value>)
+    suspend fun unset(toUnset: List<Key>)
 }
 
+suspend inline fun <Key, Value> WriteStandardKeyValueRepo<Key, Value>.set(
+    vararg toSet: Pair<Key, Value>
+) = set(toSet.toMap())
+
+suspend inline fun <Key, Value> WriteStandardKeyValueRepo<Key, Value>.set(
+    k: Key, v: Value
+) = set(k to v)
+
+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>

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

@@ -0,0 +1,99 @@
+package dev.inmo.micro_utils.repos.mappers
+
+import dev.inmo.micro_utils.pagination.Pagination
+import dev.inmo.micro_utils.pagination.PaginationResult
+import dev.inmo.micro_utils.repos.*
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.map
+
+open class MapperReadStandardKeyValueRepo<FromKey, FromValue, ToKey, ToValue>(
+    private val to: ReadStandardKeyValueRepo<ToKey, ToValue>,
+    mapper: MapperRepo<FromKey, FromValue, ToKey, ToValue>
+) : ReadStandardKeyValueRepo<FromKey, FromValue>, MapperRepo<FromKey, FromValue, ToKey, ToValue> by mapper {
+    override suspend fun get(k: FromKey): FromValue? = to.get(
+        k.toOutKey()
+    ) ?.toInnerValue()
+
+    override suspend fun values(
+        pagination: Pagination,
+        reversed: Boolean
+    ): PaginationResult<FromValue> = to.values(
+        pagination,
+        reversed
+    ).let {
+        PaginationResult(
+            it.page,
+            it.pagesNumber,
+            it.results.map { it.toInnerValue() },
+            it.size
+        )
+    }
+
+    override suspend fun keys(
+        pagination: Pagination,
+        reversed: Boolean
+    ): PaginationResult<FromKey> = to.keys(
+        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()
+    )
+
+    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)
+
+open class MapperWriteStandardKeyValueRepo<FromKey, FromValue, ToKey, ToValue>(
+    private val to: WriteStandardKeyValueRepo<ToKey, ToValue>,
+    mapper: MapperRepo<FromKey, FromValue, ToKey, ToValue>
+) : WriteStandardKeyValueRepo<FromKey, FromValue>, MapperRepo<FromKey, FromValue, ToKey, ToValue> by mapper {
+    override val onNewValue: Flow<Pair<FromKey, FromValue>> = to.onNewValue.map { (k, v) ->
+        k.toInnerKey() to v.toInnerValue()
+    }
+    override val onValueRemoved: Flow<FromKey> = to.onValueRemoved.map { k ->
+        k.toInnerKey()
+    }
+
+    override suspend fun set(toSet: Map<FromKey, FromValue>) = to.set(
+        toSet.map { (k, v) ->
+            k.toOutKey() to v.toOutValue()
+        }.toMap()
+    )
+
+    override suspend fun unset(toUnset: List<FromKey>) = to.unset(
+        toUnset.map { k ->
+            k.toOutKey()
+        }
+    )
+}
+
+@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)
+
+open class MapperStandardKeyValueRepo<FromKey, FromValue, ToKey, ToValue>(
+    private val to: StandardKeyValueRepo<ToKey, ToValue>,
+    mapper: MapperRepo<FromKey, FromValue, ToKey, ToValue>
+) : StandardKeyValueRepo<FromKey, FromValue>,
+    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)

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

@@ -0,0 +1,102 @@
+package dev.inmo.micro_utils.repos.mappers
+
+import dev.inmo.micro_utils.pagination.Pagination
+import dev.inmo.micro_utils.pagination.PaginationResult
+import dev.inmo.micro_utils.repos.*
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.map
+
+open class MapperReadOneToManyKeyValueRepo<FromKey, FromValue, ToKey, ToValue>(
+    private val to: ReadOneToManyKeyValueRepo<ToKey, ToValue>,
+    mapper: MapperRepo<FromKey, FromValue, ToKey, ToValue>
+) : ReadOneToManyKeyValueRepo<FromKey, FromValue>, MapperRepo<FromKey, FromValue, ToKey, ToValue> by mapper {
+    override suspend fun get(
+        k: FromKey,
+        pagination: Pagination,
+        reversed: Boolean
+    ): PaginationResult<FromValue> = to.get(
+        k.toOutKey(),
+        pagination,
+        reversed
+    ).let {
+        PaginationResult(
+            it.page,
+            it.pagesNumber,
+            it.results.map { it.toInnerValue() },
+            it.size
+        )
+    }
+
+    override suspend fun keys(
+        pagination: Pagination,
+        reversed: Boolean
+    ): PaginationResult<FromKey> = to.keys(
+        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())
+
+    override suspend fun count(): Long = to.count()
+    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)
+
+open class MapperWriteOneToManyKeyValueRepo<FromKey, FromValue, ToKey, ToValue>(
+    private val to: WriteOneToManyKeyValueRepo<ToKey, ToValue>,
+    mapper: MapperRepo<FromKey, FromValue, ToKey, ToValue>
+) : WriteOneToManyKeyValueRepo<FromKey, FromValue>, MapperRepo<FromKey, FromValue, ToKey, ToValue> by mapper {
+    override val onNewValue: Flow<Pair<FromKey, FromValue>> = to.onNewValue.map { (k, v) ->
+        k.toInnerKey() to v.toInnerValue()
+    }
+    override val onValueRemoved: Flow<Pair<FromKey, FromValue>> = to.onValueRemoved.map { (k, v) ->
+        k.toInnerKey() to v.toInnerValue()
+    }
+    override val onDataCleared: Flow<FromKey> = to.onDataCleared.map { k ->
+        k.toInnerKey()
+    }
+
+    override suspend fun add(toAdd: Map<FromKey, List<FromValue>>) = to.add(
+        toAdd.map { (k, v) ->
+            k.toOutKey() to v.map { it.toOutValue() }
+        }.toMap()
+    )
+
+    override suspend fun remove(toRemove: Map<FromKey, List<FromValue>>) = to.remove(
+        toRemove.map { (k, v) ->
+            k.toOutKey() to v.map { it.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)
+
+open class MapperOneToManyKeyValueRepo<FromKey, FromValue, ToKey, ToValue>(
+    private val to: OneToManyKeyValueRepo<ToKey, ToValue>,
+    mapper: MapperRepo<FromKey, FromValue, ToKey, ToValue>
+) : OneToManyKeyValueRepo<FromKey, FromValue>,
+    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)

repos/common/src/commonMain/kotlin/dev/inmo/micro_utils/repos/pagination/KeyValuePaginationExtensions.kt

@@ -1,7 +1,7 @@
 package dev.inmo.micro_utils.repos.pagination
 
 import dev.inmo.micro_utils.pagination.*
-import dev.inmo.micro_utils.repos.*
+import dev.inmo.micro_utils.repos.ReadStandardKeyValueRepo
 
 suspend inline fun <Key, Value, REPO : ReadStandardKeyValueRepo<Key, Value>> REPO.doForAll(
     @Suppress("REDUNDANT_INLINE_SUSPEND_FUNCTION_TYPE")

repos/common/src/commonMain/kotlin/dev/inmo/micro_utils/repos/pagination/OneToManyPaginationExtensions.kt

@@ -1,7 +1,7 @@
 package dev.inmo.micro_utils.repos.pagination
 
 import dev.inmo.micro_utils.pagination.*
-import dev.inmo.micro_utils.repos.*
+import dev.inmo.micro_utils.repos.ReadOneToManyKeyValueRepo
 
 suspend inline fun <Key, Value, REPO : ReadOneToManyKeyValueRepo<Key, Value>> REPO.doForAll(
     @Suppress("REDUNDANT_INLINE_SUSPEND_FUNCTION_TYPE")

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.newSingleThreadContext
+import kotlin.coroutines.CoroutineContext
+
+val DatabaseCoroutineContext: CoroutineContext = newSingleThreadContext("db-context")

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 +1,45 @@
+package dev.inmo.micro_utils.repos
+
+import android.database.sqlite.SQLiteDatabase
+import dev.inmo.micro_utils.coroutines.safely
+import kotlinx.coroutines.withContext
+
+suspend fun <T> SQLiteDatabase.transaction(block: suspend SQLiteDatabase.() -> T): T {
+    return withContext(DatabaseCoroutineContext) {
+        when {
+            inTransaction() -> {
+                block()
+            }
+            else -> {
+                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 +1,51 @@
+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 kotlin.coroutines.Continuation
+import kotlin.coroutines.resume
+import kotlin.coroutines.resumeWithException
+
+private data class CallbackContinuationPair<T> (
+    val callback: suspend SQLiteDatabase.() -> T,
+    val continuation: Continuation<T>
+) {
+    suspend fun SQLiteDatabase.execute() {
+        safely(
+            {
+                continuation.resumeWithException(it)
+            }
+        ) {
+            continuation.resume(callback())
+        }
+    }
+}
+
+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) {}
+    }
+
+    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 +1,104 @@
+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.channels.BroadcastChannel
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.asFlow
+
+abstract class AbstractMutableAndroidCRUDRepo<ObjectType, IdType, InputValueType>(
+    helper: StandardSQLHelper
+) : WriteStandardCRUDRepo<ObjectType, IdType, InputValueType>,
+    AbstractAndroidCRUDRepo<ObjectType, IdType>(helper) {
+    protected val newObjectsChannel = BroadcastChannel<ObjectType>(64)
+    protected val updateObjectsChannel = BroadcastChannel<ObjectType>(64)
+    protected val deleteObjectsIdsChannel = BroadcastChannel<IdType>(64)
+    override val newObjectsFlow: Flow<ObjectType> = newObjectsChannel.asFlow()
+    override val updatedObjectsFlow: Flow<ObjectType> = updateObjectsChannel.asFlow()
+    override val deletedObjectsIdsFlow: Flow<IdType> = deleteObjectsIdsChannel.asFlow()
+
+    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 = "$internalId=?",
+                    selectionArgs = arrayOf(i.toString())
+                ).use { c ->
+                    if (c.moveToFirst()) {
+                        c.toObject()
+                    } else {
+                        null
+                    }
+                }
+            }
+        }.also {
+            it.forEach {
+                newObjectsChannel.send(it)
+            }
+        }
+    }
+
+    override suspend fun deleteById(ids: List<IdType>) {
+        val deleted = mutableListOf<IdType>()
+        helper.writableTransaction {
+            ids.forEach { id ->
+                delete(tableName, "$idColumnName=?", arrayOf(id.asId)).also {
+                    if (it > 0) {
+                        deleted.add(id)
+                    }
+                }
+            }
+        }
+        deleted.forEach {
+            deleteObjectsIdsChannel.send(it)
+        }
+    }
+
+    override suspend fun update(id: IdType, value: InputValueType): ObjectType? {
+        val asContentValues = value.asContentValues(id)
+        if (asContentValues.keySet().isNotEmpty()) {
+            helper.writableTransaction {
+                update(
+                    tableName,
+                    asContentValues,
+                    "$idColumnName=?",
+                    arrayOf(id.asId)
+                )
+            }
+        }
+        return getById(id) ?.also {
+            updateObjectsChannel.send(it)
+        }
+    }
+
+    override suspend fun update(values: List<UpdatedValuePair<IdType, InputValueType>>): List<ObjectType> {
+        helper.writableTransaction {
+            values.forEach { (id, value) ->
+                update(
+                    tableName,
+                    value.asContentValues(id),
+                    "$idColumnName=?",
+                    arrayOf(id.asId)
+                )
+            }
+        }
+        return values.mapNotNullA {
+            getById(it.first)
+        }.also {
+            it.forEach {
+                updateObjectsChannel.send(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 +1,130 @@
+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.channels.BroadcastChannel
+import kotlinx.coroutines.channels.Channel
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.asFlow
+
+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 = BroadcastChannel<Pair<String, T>>(Channel.BUFFERED)
+    private val onValueRemovedChannel = BroadcastChannel<String>(Channel.BUFFERED)
+
+    override val onNewValue: Flow<Pair<String, T>> = onNewValueChannel.asFlow()
+    override val onValueRemoved: Flow<String> = onValueRemovedChannel.asFlow()
+
+    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 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.send(k to v)
+        }
+    }
+
+    override suspend fun unset(toUnset: List<String>) {
+        sharedPreferences.edit {
+            toUnset.forEach { remove(it) }
+        }
+        toUnset.forEach { onValueRemovedChannel.send(it) }
+    }
+}

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

@@ -0,0 +1,187 @@
+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, "$idColumnName=?", arrayOf(k.asId()))
+        }.also {
+            if (it > 0) {
+                _onDataCleared.emit(k)
+            }
+        }
+    }
+
+    override suspend fun contains(k: Key): Boolean = helper.readableTransaction {
+        select(tableName, selection = "$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 = "$idColumnName=?",
+                selectionArgs = arrayOf(k.asId()),
+                limit = resultPagination.limitClause()
+            ).use { c ->
+                mutableListOf<Value>().also {
+                    if (c.moveToFirst()) {
+                        do {
+                            it.add(c.getString(valueColumnName).asValue())
+                        } while (c.moveToNext())
+                    }
+                }
+            }
+        }.createPaginationResult(
+            pagination,
+            count
+        )
+    }
+
+    override suspend fun keys(
+        pagination: Pagination,
+        reversed: Boolean
+    ): PaginationResult<Key> = count().let { count ->
+        val resultPagination = pagination.let { if (reversed) pagination.reverse(count) else pagination }
+        helper.readableTransaction {
+            select(
+                tableName,
+                limit = resultPagination.limitClause()
+            ).use { c ->
+                mutableListOf<Key>().also {
+                    if (c.moveToFirst()) {
+                        do {
+                            it.add(c.getString(idColumnName).asKey())
+                        } while (c.moveToNext())
+                    }
+                }
+            }
+        }.createPaginationResult(
+            pagination,
+            count
+        )
+    }
+
+    override suspend fun remove(toRemove: Map<Key, List<Value>>) {
+        helper.writableTransaction {
+            toRemove.flatMap { (k, vs) ->
+                vs.mapNotNullA { v ->
+                    if (delete(tableName, "$idColumnName=? AND $valueColumnName=?", arrayOf(k.asId(), v.asValue())) > 0) {
+                        k to v
+                    } else {
+                        null
+                    }
+                }
+            }
+        }.forEach { (k, v) ->
+            _onValueRemoved.emit(k to v)
+        }
+    }
+}

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

@@ -1,9 +1,7 @@
 package dev.inmo.micro_utils.repos.exposed
 
-import kotlinx.coroutines.channels.Channel
-
 abstract class AbstractExposedCRUDRepo<ObjectType, IdType, InputValueType>(
-    flowsChannelsSize: Int = Channel.BUFFERED,
+    flowsChannelsSize: Int = 0,
     tableName: String = ""
 ) :
     AbstractExposedWriteCRUDRepo<ObjectType, IdType, InputValueType>(

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

@@ -3,28 +3,27 @@ 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.Flow
-import kotlinx.coroutines.flow.asFlow
+import kotlinx.coroutines.flow.*
 import org.jetbrains.exposed.sql.*
 import org.jetbrains.exposed.sql.statements.InsertStatement
 import org.jetbrains.exposed.sql.statements.UpdateStatement
 import org.jetbrains.exposed.sql.transactions.transaction
 
 abstract class AbstractExposedWriteCRUDRepo<ObjectType, IdType, InputValueType>(
-    flowsChannelsSize: Int = 64,
+    flowsChannelsSize: Int = 0,
     tableName: String = ""
 ) :
     AbstractExposedReadCRUDRepo<ObjectType, IdType>(tableName),
     ExposedCRUDRepo<ObjectType, IdType>,
     WriteStandardCRUDRepo<ObjectType, IdType, InputValueType>
 {
-    protected val newObjectsChannel = BroadcastChannel<ObjectType>(flowsChannelsSize)
-    protected val updateObjectsChannel = BroadcastChannel<ObjectType>(flowsChannelsSize)
-    protected val deleteObjectsIdsChannel = BroadcastChannel<IdType>(flowsChannelsSize)
+    protected val newObjectsChannel = MutableSharedFlow<ObjectType>(flowsChannelsSize)
+    protected val updateObjectsChannel = MutableSharedFlow<ObjectType>(flowsChannelsSize)
+    protected val deleteObjectsIdsChannel = MutableSharedFlow<IdType>(flowsChannelsSize)
 
-    override val newObjectsFlow: Flow<ObjectType> = newObjectsChannel.asFlow()
-    override val updatedObjectsFlow: Flow<ObjectType> = updateObjectsChannel.asFlow()
-    override val deletedObjectsIdsFlow: Flow<IdType> = deleteObjectsIdsChannel.asFlow()
+    override val newObjectsFlow: Flow<ObjectType> = newObjectsChannel.asSharedFlow()
+    override val updatedObjectsFlow: Flow<ObjectType> = updateObjectsChannel.asSharedFlow()
+    override val deletedObjectsIdsFlow: Flow<IdType> = deleteObjectsIdsChannel.asSharedFlow()
 
     abstract val InsertStatement<Number>.asObject: ObjectType
     abstract val selectByIds: SqlExpressionBuilder.(List<out IdType>) -> Op<Boolean>
@@ -45,7 +44,7 @@ abstract class AbstractExposedWriteCRUDRepo<ObjectType, IdType, InputValueType>(
             values.map { value -> createWithoutNotification(value) }
         }.also {
             it.forEach {
-                newObjectsChannel.send(it)
+                newObjectsChannel.emit(it)
             }
         }
     }
@@ -75,7 +74,7 @@ abstract class AbstractExposedWriteCRUDRepo<ObjectType, IdType, InputValueType>(
         onBeforeUpdate(listOf(id to value))
         return updateWithoutNotification(id, value).also {
             if (it != null) {
-                updateObjectsChannel.send(it)
+                updateObjectsChannel.emit(it)
             }
         }
     }
@@ -89,7 +88,7 @@ abstract class AbstractExposedWriteCRUDRepo<ObjectType, IdType, InputValueType>(
             } as List<ObjectType>
         ).also {
             it.forEach {
-                updateObjectsChannel.send(it)
+                updateObjectsChannel.emit(it)
             }
         }
     }

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

@@ -1,6 +1,5 @@
 package dev.inmo.micro_utils.repos.exposed
 
-import dev.inmo.micro_utils.repos.Repo
 import org.jetbrains.exposed.sql.*
 
 interface ExposedCRUDRepo<ObjectType, IdType> : ExposedRepo {

repos/exposed/src/jvmMain/kotlin/dev/inmo/micro_utils/repos/exposed/keyvalue/ExposedKeyValueRepo.kt

@@ -1,11 +1,9 @@
 package dev.inmo.micro_utils.repos.exposed.keyvalue
 
 import dev.inmo.micro_utils.repos.StandardKeyValueRepo
-import dev.inmo.micro_utils.repos.exposed.*
-import kotlinx.coroutines.channels.BroadcastChannel
+import dev.inmo.micro_utils.repos.exposed.ColumnAllocator
 import kotlinx.coroutines.channels.Channel
-import kotlinx.coroutines.flow.Flow
-import kotlinx.coroutines.flow.asFlow
+import kotlinx.coroutines.flow.*
 import org.jetbrains.exposed.sql.*
 import org.jetbrains.exposed.sql.transactions.transaction
 
@@ -20,35 +18,45 @@ open class ExposedKeyValueRepo<Key, Value>(
     valueColumnAllocator,
     tableName
 ) {
-    private val onNewValueChannel = BroadcastChannel<Pair<Key, Value>>(Channel.BUFFERED)
-    private val onValueRemovedChannel = BroadcastChannel<Key>(Channel.BUFFERED)
+    private val _onNewValue = MutableSharedFlow<Pair<Key, Value>>(Channel.BUFFERED)
+    private val _onValueRemoved = MutableSharedFlow<Key>(Channel.BUFFERED)
 
-    override val onNewValue: Flow<Pair<Key, Value>> = onNewValueChannel.asFlow()
-    override val onValueRemoved: Flow<Key> = onValueRemovedChannel.asFlow()
+    override val onNewValue: Flow<Pair<Key, Value>> = _onNewValue.asSharedFlow()
+    override val onValueRemoved: Flow<Key> = _onValueRemoved.asSharedFlow()
 
-    override suspend fun set(k: Key, v: Value) {
+    override suspend fun set(toSet: Map<Key, Value>) {
         transaction(database) {
-            if (select { keyColumn.eq(k) }.limit(1).any()) {
-                update({ keyColumn.eq(k) }) {
-                    it[valueColumn] = v
-                }
-            } else {
-                insert {
-                    it[keyColumn] = k
-                    it[valueColumn] = v
+            toSet.mapNotNull { (k, v) ->
+                if (update({ keyColumn.eq(k) }) { it[valueColumn] = v } > 0) {
+                    k to v
+                } else {
+                    val inserted = insert {
+                        it[keyColumn] = k
+                        it[valueColumn] = v
+                    }.getOrNull(keyColumn) != null
+                    if (inserted) {
+                        k to v
+                    } else {
+                        null
+                    }
                 }
             }
+        }.forEach {
+            _onNewValue.emit(it)
         }
-        onNewValueChannel.send(k to v)
     }
 
-    override suspend fun unset(k: Key) {
+    override suspend fun unset(toUnset: List<Key>) {
         transaction(database) {
-            deleteWhere { keyColumn.eq(k) }
+            toUnset.mapNotNull {
+                if (deleteWhere { keyColumn.eq(it) } > 0) {
+                    it
+                } else {
+                    null
+                }
+            }
+        }.forEach {
+            _onValueRemoved.emit(it)
         }
-        onValueRemovedChannel.send(k)
     }
 }
-
-@Deprecated("Renamed", ReplaceWith("ExposedKeyValueRepo", "dev.inmo.micro_utils.repos.exposed.keyvalue.ExposedKeyValueRepo"))
-typealias AbstractExposedKeyValueRepo<Key, Value> = ExposedKeyValueRepo<Key, Value>

repos/exposed/src/jvmMain/kotlin/dev/inmo/micro_utils/repos/exposed/keyvalue/ExposedReadKeyValueRepo.kt

@@ -2,7 +2,8 @@ package dev.inmo.micro_utils.repos.exposed.keyvalue
 
 import dev.inmo.micro_utils.pagination.*
 import dev.inmo.micro_utils.repos.ReadStandardKeyValueRepo
-import dev.inmo.micro_utils.repos.exposed.*
+import dev.inmo.micro_utils.repos.exposed.ColumnAllocator
+import dev.inmo.micro_utils.repos.exposed.ExposedRepo
 import org.jetbrains.exposed.sql.*
 import org.jetbrains.exposed.sql.transactions.transaction
 
@@ -38,6 +39,3 @@ open class ExposedReadKeyValueRepo<Key, Value>(
         }
     }.createPaginationResult(pagination, count())
 }
-
-@Deprecated("Renamed", ReplaceWith("ExposedReadKeyValueRepo", "dev.inmo.micro_utils.repos.exposed.keyvalue.ExposedReadKeyValueRepo"))
-typealias AbstractExposedReadKeyValueRepo<Key, Value> = ExposedReadKeyValueRepo<Key, Value>

repos/exposed/src/jvmMain/kotlin/dev/inmo/micro_utils/repos/exposed/onetomany/ExposedOneToManyKeyValueRepo.kt

@@ -1,10 +1,8 @@
 package dev.inmo.micro_utils.repos.exposed.onetomany
 
-import dev.inmo.micro_utils.coroutines.BroadcastFlow
 import dev.inmo.micro_utils.repos.OneToManyKeyValueRepo
 import dev.inmo.micro_utils.repos.exposed.ColumnAllocator
-import dev.inmo.micro_utils.repos.exposed.initTable
-import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.*
 import org.jetbrains.exposed.sql.*
 import org.jetbrains.exposed.sql.transactions.transaction
 
@@ -19,40 +17,48 @@ open class ExposedOneToManyKeyValueRepo<Key, Value>(
     valueColumnAllocator,
     tableName
 ) {
-    protected val _onNewValue: BroadcastFlow<Pair<Key, Value>> = BroadcastFlow()
+    protected val _onNewValue: MutableSharedFlow<Pair<Key, Value>> = MutableSharedFlow()
     override val onNewValue: Flow<Pair<Key, Value>>
         get() = _onNewValue
-    protected val _onValueRemoved: BroadcastFlow<Pair<Key, Value>> = BroadcastFlow()
+    protected val _onValueRemoved: MutableSharedFlow<Pair<Key, Value>> = MutableSharedFlow()
     override val onValueRemoved: Flow<Pair<Key, Value>>
         get() = _onValueRemoved
-    protected val _onDataCleared: BroadcastFlow<Key> = BroadcastFlow()
+    protected val _onDataCleared: MutableSharedFlow<Key> = MutableSharedFlow()
     override val onDataCleared: Flow<Key>
         get() = _onDataCleared
 
-    override suspend fun add(k: Key, v: Value) {
+    override suspend fun add(toAdd: Map<Key, List<Value>>) {
         transaction(database) {
-            insert {
-                it[keyColumn] = k
-                it[valueColumn] = v
+            toAdd.keys.flatMap { k ->
+                toAdd[k] ?.mapNotNull { v ->
+                    insertIgnore {
+                        it[keyColumn] = k
+                        it[valueColumn] = v
+                    }.getOrNull(keyColumn) ?.let { k to v }
+                } ?: emptyList()
             }
-        }.also { _onNewValue.send(k to v) }
+        }.forEach { _onNewValue.emit(it) }
     }
 
-    override suspend fun remove(k: Key, v: Value) {
+    override suspend fun remove(toRemove: Map<Key, List<Value>>) {
         transaction(database) {
-            deleteWhere { keyColumn.eq(k).and(valueColumn.eq(v)) }
-        }.also { _onValueRemoved.send(k to v) }
+            toRemove.keys.flatMap { k ->
+                toRemove[k] ?.mapNotNull { v ->
+                    if (deleteIgnoreWhere { keyColumn.eq(k).and(valueColumn.eq(v)) } > 0 ) {
+                        k to v
+                    } else {
+                        null
+                    }
+                } ?: emptyList()
+            }
+        }.forEach {
+            _onValueRemoved.emit(it)
+        }
     }
 
     override suspend fun clear(k: Key) {
         transaction(database) {
             deleteWhere { keyColumn.eq(k) }
-        }.also { _onDataCleared.send(k) }
+        }.also { _onDataCleared.emit(k) }
     }
 }
-
-@Deprecated("Renamed", ReplaceWith("ExposedOneToManyKeyValueRepo", "dev.inmo.micro_utils.repos.exposed.onetomany.ExposedOneToManyKeyValueRepo"))
-typealias AbstractOneToManyExposedKeyValueRepo<Key, Value> = ExposedOneToManyKeyValueRepo<Key, Value>
-
-@Deprecated("Renamed", ReplaceWith("ExposedOneToManyKeyValueRepo", "dev.inmo.micro_utils.repos.exposed.onetomany.ExposedOneToManyKeyValueRepo"))
-typealias AbstractExposedOneToManyKeyValueRepo<Key, Value> = ExposedOneToManyKeyValueRepo<Key, Value>

repos/exposed/src/jvmMain/kotlin/dev/inmo/micro_utils/repos/exposed/onetomany/ExposedReadOneToManyKeyValueRepo.kt

@@ -47,9 +47,3 @@ open class ExposedReadOneToManyKeyValueRepo<Key, Value>(
         select { keyColumn.eq(k).and(valueColumn.eq(v)) }.limit(1).any()
     }
 }
-
-@Deprecated("Renamed", ReplaceWith("ExposedReadOneToManyKeyValueRepo", "dev.inmo.micro_utils.repos.exposed.onetomany.ExposedReadOneToManyKeyValueRepo"))
-typealias AbstractOneToManyExposedReadKeyValueRepo<Key, Value> = ExposedReadOneToManyKeyValueRepo<Key, Value>
-
-@Deprecated("Renamed", ReplaceWith("ExposedReadOneToManyKeyValueRepo", "dev.inmo.micro_utils.repos.exposed.onetomany.ExposedReadOneToManyKeyValueRepo"))
-typealias AbstractExposedReadOneToManyKeyValueRepo<Key, Value> = ExposedReadOneToManyKeyValueRepo<Key, Value>

repos/inmemory/build.gradle

@@ -1,6 +1,8 @@
 plugins {
     id "org.jetbrains.kotlin.multiplatform"
     id "org.jetbrains.kotlin.plugin.serialization"
+    id "com.android.library"
+    id "kotlin-android-extensions"
 }
 
 apply from: "$mppProjectWithSerializationPresetPath"

repos/inmemory/src/commonMain/kotlin/dev/inmo/micro_utils/repos/MapCRUDRepo.kt

@@ -1,8 +1,7 @@
 package dev.inmo.micro_utils.repos
 
-import dev.inmo.micro_utils.coroutines.BroadcastFlow
 import dev.inmo.micro_utils.pagination.*
-import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.*
 
 class ReadMapCRUDRepo<ObjectType, IdType>(
     private val map: Map<IdType, ObjectType> = emptyMap()
@@ -26,15 +25,12 @@ class ReadMapCRUDRepo<ObjectType, IdType>(
 abstract class WriteMapCRUDRepo<ObjectType, IdType, InputValueType>(
     private val map: MutableMap<IdType, ObjectType> = mutableMapOf()
 ) : WriteStandardCRUDRepo<ObjectType, IdType, InputValueType> {
-    private val _newObjectsFlow: BroadcastFlow<ObjectType> = BroadcastFlow()
-    override val newObjectsFlow: Flow<ObjectType>
-        get() = _newObjectsFlow
-    private val _updatedObjectsFlow: BroadcastFlow<ObjectType> = BroadcastFlow()
-    override val updatedObjectsFlow: Flow<ObjectType>
-        get() = _updatedObjectsFlow
-    private val _deletedObjectsIdsFlow: BroadcastFlow<IdType> = BroadcastFlow()
-    override val deletedObjectsIdsFlow: Flow<IdType>
-        get() = _deletedObjectsIdsFlow
+    private val _newObjectsFlow: MutableSharedFlow<ObjectType> = MutableSharedFlow()
+    override val newObjectsFlow: Flow<ObjectType> = _newObjectsFlow.asSharedFlow()
+    private val _updatedObjectsFlow: MutableSharedFlow<ObjectType> = MutableSharedFlow()
+    override val updatedObjectsFlow: Flow<ObjectType> = _updatedObjectsFlow.asSharedFlow()
+    private val _deletedObjectsIdsFlow: MutableSharedFlow<IdType> = MutableSharedFlow()
+    override val deletedObjectsIdsFlow: Flow<IdType> = _deletedObjectsIdsFlow.asSharedFlow()
 
     protected abstract suspend fun updateObject(newValue: InputValueType, id: IdType, old: ObjectType): ObjectType
     protected abstract suspend fun createObject(newValue: InputValueType): Pair<IdType, ObjectType>
@@ -44,7 +40,7 @@ abstract class WriteMapCRUDRepo<ObjectType, IdType, InputValueType>(
             val (id, newObject) = createObject(it)
             map[id] = newObject
             newObject.also { _ ->
-                _newObjectsFlow.send(newObject)
+                _newObjectsFlow.emit(newObject)
             }
         }
     }
@@ -54,7 +50,7 @@ abstract class WriteMapCRUDRepo<ObjectType, IdType, InputValueType>(
 
         return newValue.also {
             map[id] = it
-            _updatedObjectsFlow.send(it)
+            _updatedObjectsFlow.emit(it)
         }
     }
 
@@ -64,7 +60,7 @@ abstract class WriteMapCRUDRepo<ObjectType, IdType, InputValueType>(
 
     override suspend fun deleteById(ids: List<IdType>) {
         ids.forEach {
-            map.remove(it) ?.also { _ -> _deletedObjectsIdsFlow.send(it) }
+            map.remove(it) ?.also { _ -> _deletedObjectsIdsFlow.emit(it) }
         }
     }
 

repos/inmemory/src/commonMain/kotlin/dev/inmo/micro_utils/repos/MapKeyValueRepo.kt

@@ -1,10 +1,11 @@
 package dev.inmo.micro_utils.repos
 
-import dev.inmo.micro_utils.coroutines.BroadcastFlow
-import dev.inmo.micro_utils.pagination.*
+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 kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.MutableSharedFlow
 
 class ReadMapKeyValueRepo<Key, Value>(
     private val map: Map<Key, Value> = emptyMap()
@@ -46,20 +47,22 @@ class ReadMapKeyValueRepo<Key, Value>(
 class WriteMapKeyValueRepo<Key, Value>(
     private val map: MutableMap<Key, Value> = mutableMapOf()
 ) : WriteStandardKeyValueRepo<Key, Value> {
-    private val _onNewValue: BroadcastFlow<Pair<Key, Value>> = BroadcastFlow()
+    private val _onNewValue: MutableSharedFlow<Pair<Key, Value>> = MutableSharedFlow()
     override val onNewValue: Flow<Pair<Key, Value>>
         get() = _onNewValue
-    private val _onValueRemoved: BroadcastFlow<Key> = BroadcastFlow()
+    private val _onValueRemoved: MutableSharedFlow<Key> = MutableSharedFlow()
     override val onValueRemoved: Flow<Key>
         get() = _onValueRemoved
 
-    override suspend fun set(k: Key, v: Value) {
-        map[k] = v
-        _onNewValue.send(k to v)
+    override suspend fun set(toSet: Map<Key, Value>) {
+        map.putAll(toSet)
+        toSet.forEach { (k, v) -> _onNewValue.emit(k to v) }
     }
 
-    override suspend fun unset(k: Key) {
-        map.remove(k) ?.also { _onValueRemoved.send(k) }
+    override suspend fun unset(toUnset: List<Key>) {
+        toUnset.forEach { k ->
+            map.remove(k) ?.also { _ -> _onValueRemoved.emit(k) }
+        }
     }
 }
 

repos/inmemory/src/commonMain/kotlin/dev/inmo/micro_utils/repos/MapOneToManyKeyValueRepo.kt

@@ -1,10 +1,9 @@
 package dev.inmo.micro_utils.repos
 
-import dev.inmo.micro_utils.coroutines.BroadcastFlow
 import dev.inmo.micro_utils.pagination.*
 import dev.inmo.micro_utils.pagination.utils.paginate
 import dev.inmo.micro_utils.pagination.utils.reverse
-import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.*
 
 class MapReadOneToManyKeyValueRepo<Key, Value>(
     private val map: Map<Key, List<Value>> = emptyMap()
@@ -45,27 +44,35 @@ class MapReadOneToManyKeyValueRepo<Key, Value>(
 class MapWriteOneToManyKeyValueRepo<Key, Value>(
     private val map: MutableMap<Key, MutableList<Value>> = mutableMapOf()
 ) : WriteOneToManyKeyValueRepo<Key, Value> {
-    private val _onNewValue: BroadcastFlow<Pair<Key, Value>> = BroadcastFlow()
-    override val onNewValue: Flow<Pair<Key, Value>>
-        get() = _onNewValue
-    private val _onValueRemoved: BroadcastFlow<Pair<Key, Value>> = BroadcastFlow()
-    override val onValueRemoved: Flow<Pair<Key, Value>>
-        get() = _onValueRemoved
-    private val _onDataCleared: BroadcastFlow<Key> = BroadcastFlow()
-    override val onDataCleared: Flow<Key>
-        get() = _onDataCleared
+    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> = MutableSharedFlow()
+    override val onDataCleared: Flow<Key> = _onDataCleared.asSharedFlow()
 
-    override suspend fun add(k: Key, v: Value) {
-        map.getOrPut(k) { mutableListOf() }.add(v)
-        _onNewValue.send(k to v)
+    override suspend fun add(toAdd: Map<Key, List<Value>>) {
+        toAdd.keys.forEach { k ->
+            if (map.getOrPut(k) { mutableListOf() }.addAll(toAdd[k] ?: return@forEach)) {
+                toAdd[k] ?.forEach { v ->
+                    _onNewValue.emit(k to v)
+                }
+            }
+        }
     }
 
-    override suspend fun remove(k: Key, v: Value) {
-        map[k] ?.remove(v) ?.also { _onValueRemoved.send(k to v) }
+    override suspend fun remove(toRemove: Map<Key, List<Value>>) {
+        toRemove.keys.forEach { k ->
+            if (map[k] ?.removeAll(toRemove[k] ?: return@forEach) == true) {
+                toRemove[k] ?.forEach { v ->
+                    _onValueRemoved.emit(k to v)
+                }
+            }
+        }
     }
 
     override suspend fun clear(k: Key) {
-        map.remove(k) ?.also { _onDataCleared.send(k) }
+        map.remove(k) ?.also { _onDataCleared.emit(k) }
     }
 }
 

repos/inmemory/src/main/AndroidManifest.xml

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

repos/ktor/client/build.gradle

@@ -1,6 +1,8 @@
 plugins {
     id "org.jetbrains.kotlin.multiplatform"
     id "org.jetbrains.kotlin.plugin.serialization"
+    id "com.android.library"
+    id "kotlin-android-extensions"
 }
 
 apply from: "$mppProjectWithSerializationPresetPath"

repos/ktor/client/src/commonMain/kotlin/dev/inmo/micro_utils/repos/ktor/client/crud/KtorReadStandardCrudRepo.kt

@@ -3,9 +3,7 @@ package dev.inmo.micro_utils.repos.ktor.client.crud
 import dev.inmo.micro_utils.ktor.client.encodeUrlQueryValue
 import dev.inmo.micro_utils.ktor.client.uniget
 import dev.inmo.micro_utils.ktor.common.buildStandardUrl
-import dev.inmo.micro_utils.pagination.Pagination
-import dev.inmo.micro_utils.pagination.PaginationResult
-import dev.inmo.micro_utils.pagination.asUrlQueryParts
+import dev.inmo.micro_utils.pagination.*
 import dev.inmo.micro_utils.repos.ReadStandardCRUDRepo
 import dev.inmo.micro_utils.repos.ktor.common.crud.*
 import io.ktor.client.HttpClient

repos/ktor/client/src/commonMain/kotlin/dev/inmo/micro_utils/repos/ktor/client/crud/KtorWriteStandardCrudRepo.kt

@@ -1,8 +1,6 @@
 package dev.inmo.micro_utils.repos.ktor.client.crud
 
-import dev.inmo.micro_utils.ktor.client.BodyPair
-import dev.inmo.micro_utils.ktor.client.createStandardWebsocketFlow
-import dev.inmo.micro_utils.ktor.client.unipost
+import dev.inmo.micro_utils.ktor.client.*
 import dev.inmo.micro_utils.ktor.common.buildStandardUrl
 import dev.inmo.micro_utils.repos.UpdatedValuePair
 import dev.inmo.micro_utils.repos.WriteStandardCRUDRepo

repos/ktor/client/src/commonMain/kotlin/dev/inmo/micro_utils/repos/ktor/client/key_value/KtorReadStandardKeyValueRepo.kt

@@ -3,12 +3,10 @@ package dev.inmo.micro_utils.repos.ktor.client.key_value
 import dev.inmo.micro_utils.ktor.client.encodeUrlQueryValue
 import dev.inmo.micro_utils.ktor.client.uniget
 import dev.inmo.micro_utils.ktor.common.buildStandardUrl
-import dev.inmo.micro_utils.pagination.Pagination
-import dev.inmo.micro_utils.pagination.PaginationResult
-import dev.inmo.micro_utils.pagination.asUrlQueryParts
+import dev.inmo.micro_utils.pagination.*
 import dev.inmo.micro_utils.repos.ReadStandardKeyValueRepo
 import dev.inmo.micro_utils.repos.ktor.common.key_value.*
-import io.ktor.client.*
+import io.ktor.client.HttpClient
 import kotlinx.serialization.KSerializer
 import kotlinx.serialization.builtins.serializer
 
@@ -71,6 +69,3 @@ class KtorReadStandardKeyValueRepo<Key, Value> (
         Long.serializer()
     )
 }
-
-@Deprecated("Renamed", ReplaceWith("KtorReadStandardKeyValueRepo", "dev.inmo.micro_utils.repos.ktor.client.key_value.KtorReadStandardKeyValueRepo"))
-typealias KtorStandartReadKeyValueRepo<Key, Value> = KtorReadStandardKeyValueRepo<Key, Value>

repos/ktor/client/src/commonMain/kotlin/dev/inmo/micro_utils/repos/ktor/client/key_value/KtorStandartKeyValueRepo.kt

@@ -1,9 +1,7 @@
 package dev.inmo.micro_utils.repos.ktor.client.key_value
 
-import dev.inmo.micro_utils.repos.StandardKeyValueRepo
-import dev.inmo.micro_utils.repos.ReadStandardKeyValueRepo
-import dev.inmo.micro_utils.repos.WriteStandardKeyValueRepo
-import io.ktor.client.*
+import dev.inmo.micro_utils.repos.*
+import io.ktor.client.HttpClient
 import kotlinx.serialization.KSerializer
 
 class KtorStandartKeyValueRepo<K, V> (

repos/ktor/client/src/commonMain/kotlin/dev/inmo/micro_utils/repos/ktor/client/key_value/KtorWriteStandardKeyValueRepo.kt

@@ -1,16 +1,13 @@
 package dev.inmo.micro_utils.repos.ktor.client.key_value
 
-import dev.inmo.micro_utils.ktor.client.BodyPair
-import dev.inmo.micro_utils.ktor.client.createStandardWebsocketFlow
-import dev.inmo.micro_utils.ktor.client.unipost
+import dev.inmo.micro_utils.ktor.client.*
 import dev.inmo.micro_utils.ktor.common.buildStandardUrl
 import dev.inmo.micro_utils.repos.WriteStandardKeyValueRepo
 import dev.inmo.micro_utils.repos.ktor.common.key_value.*
-import io.ktor.client.*
+import io.ktor.client.HttpClient
 import kotlinx.coroutines.flow.Flow
 import kotlinx.serialization.KSerializer
-import kotlinx.serialization.builtins.PairSerializer
-import kotlinx.serialization.builtins.serializer
+import kotlinx.serialization.builtins.*
 
 class KtorWriteStandardKeyValueRepo<K, V> (
     private var baseUrl: String,
@@ -18,6 +15,8 @@ class KtorWriteStandardKeyValueRepo<K, V> (
     private var keySerializer: KSerializer<K>,
     private var valueSerializer: KSerializer<V>,
 ) : WriteStandardKeyValueRepo<K, V> {
+    private val keyValueMapSerializer = MapSerializer(keySerializer, valueSerializer)
+    private val keysListSerializer = ListSerializer(keySerializer)
     override val onNewValue: Flow<Pair<K, V>> = client.createStandardWebsocketFlow(
         buildStandardUrl(baseUrl, onNewValueRoute),
         deserializer = PairSerializer(keySerializer, valueSerializer)
@@ -28,24 +27,21 @@ class KtorWriteStandardKeyValueRepo<K, V> (
         deserializer = keySerializer
     )
 
-    override suspend fun set(k: K, v: V) = client.unipost(
+    override suspend fun set(toSet: Map<K, V>) = client.unipost(
         buildStandardUrl(
             baseUrl,
             setRoute
         ),
-        BodyPair(KeyValuePostObject.serializer(keySerializer, valueSerializer), KeyValuePostObject(k, v)),
+        BodyPair(keyValueMapSerializer, toSet),
         Unit.serializer()
     )
 
-    override suspend fun unset(k: K) = client.unipost(
+    override suspend fun unset(toUnset: List<K>) = client.unipost(
         buildStandardUrl(
             baseUrl,
             unsetRoute,
         ),
-        BodyPair(keySerializer, k),
+        BodyPair(keysListSerializer, toUnset),
         Unit.serializer()
     )
 }
-
-@Deprecated("Renamed", ReplaceWith("KtorWriteStandardKeyValueRepo", "dev.inmo.micro_utils.repos.ktor.client.key_value.KtorWriteStandardKeyValueRepo"))
-typealias KtorStandartWriteKeyValueRepo<K, V> = KtorWriteStandardKeyValueRepo<K, V>

repos/ktor/client/src/commonMain/kotlin/dev/inmo/micro_utils/repos/ktor/client/one_to_many/KtorOneToManyKeyValueRepo.kt

@@ -1,8 +1,6 @@
 package dev.inmo.micro_utils.repos.ktor.client.one_to_many
 
-import dev.inmo.micro_utils.repos.OneToManyKeyValueRepo
-import dev.inmo.micro_utils.repos.ReadOneToManyKeyValueRepo
-import dev.inmo.micro_utils.repos.WriteOneToManyKeyValueRepo
+import dev.inmo.micro_utils.repos.*
 import io.ktor.client.HttpClient
 import kotlinx.serialization.KSerializer
 

repos/ktor/client/src/commonMain/kotlin/dev/inmo/micro_utils/repos/ktor/client/one_to_many/KtorReadOneToManyKeyValueRepo.kt

@@ -3,9 +3,7 @@ package dev.inmo.micro_utils.repos.ktor.client.one_to_many
 import dev.inmo.micro_utils.ktor.client.encodeUrlQueryValue
 import dev.inmo.micro_utils.ktor.client.uniget
 import dev.inmo.micro_utils.ktor.common.buildStandardUrl
-import dev.inmo.micro_utils.pagination.Pagination
-import dev.inmo.micro_utils.pagination.PaginationResult
-import dev.inmo.micro_utils.pagination.asUrlQueryParts
+import dev.inmo.micro_utils.pagination.*
 import dev.inmo.micro_utils.repos.ReadOneToManyKeyValueRepo
 import dev.inmo.micro_utils.repos.ktor.common.one_to_many.*
 import io.ktor.client.HttpClient

repos/ktor/client/src/commonMain/kotlin/dev/inmo/micro_utils/repos/ktor/client/one_to_many/KtorWriteOneToManyKeyValueRepo.kt

@@ -1,16 +1,13 @@
 package dev.inmo.micro_utils.repos.ktor.client.one_to_many
 
-import dev.inmo.micro_utils.coroutines.broadcastStateFlow
 import dev.inmo.micro_utils.ktor.client.*
 import dev.inmo.micro_utils.ktor.common.buildStandardUrl
 import dev.inmo.micro_utils.repos.WriteOneToManyKeyValueRepo
 import dev.inmo.micro_utils.repos.ktor.common.one_to_many.*
 import io.ktor.client.HttpClient
-import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.flow.Flow
 import kotlinx.serialization.KSerializer
-import kotlinx.serialization.builtins.PairSerializer
-import kotlinx.serialization.builtins.serializer
+import kotlinx.serialization.builtins.*
 
 class KtorWriteOneToManyKeyValueRepo<Key, Value> (
     private val baseUrl: String,
@@ -19,6 +16,7 @@ class KtorWriteOneToManyKeyValueRepo<Key, Value> (
     private val valueSerializer: KSerializer<Value>
 ) : WriteOneToManyKeyValueRepo<Key, Value> {
     private val keyValueSerializer = PairSerializer(keySerializer, valueSerializer)
+    private val keyValueMapSerializer = MapSerializer(keySerializer, ListSerializer(valueSerializer))
     override val onNewValue: Flow<Pair<Key, Value>> = client.createStandardWebsocketFlow(
         buildStandardUrl(baseUrl, onNewValueRoute),
         deserializer = keyValueSerializer
@@ -32,24 +30,23 @@ class KtorWriteOneToManyKeyValueRepo<Key, Value> (
         deserializer = keySerializer
     )
 
-    override suspend fun add(k: Key, v: Value) = client.unipost(
-        buildStandardUrl(
-            baseUrl,
-            addRoute,
-        ),
-        BodyPair(keyValueSerializer, k to v),
-        Unit.serializer(),
-    )
-
-    override suspend fun remove(k: Key, v: Value) = client.unipost(
+    override suspend fun remove(toRemove: Map<Key, List<Value>>) = client.unipost(
         buildStandardUrl(
             baseUrl,
             removeRoute,
         ),
-        BodyPair(keyValueSerializer, k to v),
+        BodyPair(keyValueMapSerializer, toRemove),
         Unit.serializer(),
     )
 
+    override suspend fun add(toAdd: Map<Key, List<Value>>) = client.unipost(
+        buildStandardUrl(
+            baseUrl,
+            clearRoute,
+        ),
+        BodyPair(keyValueMapSerializer, toAdd),
+        Unit.serializer(),
+    )
     override suspend fun clear(k: Key)  = client.unipost(
         buildStandardUrl(
             baseUrl,

repos/ktor/client/src/main/AndroidManifest.xml

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