changelog upsert

0.5.12

.github/workflows/build.yml

@@ -0,0 +1,12 @@
+name: Regular build
+on: [push]
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-java@v1
+        with:
+          java-version: 1.8
+      - name: Build
+        run: ./gradlew build

CHANGELOG.md

@@ -1,5 +1,81 @@
 # Changelog
 
+## 0.5.13
+
+* `Common`:
+    * Add functionality for multiplatform working with files:
+        * Main class for files `MPPFile`
+        * Inline class for filenames work encapsulation `FileName`
+* `FSM`
+    * Module inited and in preview state
+
+## 0.5.12
+
+* `Common`:
+    * `Android`
+        * Extension `View#changeVisibility` has been fixed
+* `Android`
+    * `RecyclerView`
+        * Default adapter got `dataCountFlow` property
+        * New subtype of adapter based on `StateFlow`: `StateFlowBasedRecyclerViewAdapter`
+
+## 0.5.11
+
+* `Repos`:
+    * `Common`:
+        * Fixes in `WriteOneToManyRepo#add`
+    * `Exposed`:
+        * Fixes in `ExposedOneToManyKeyValueRepo#add`
+
+## 0.5.10
+
+* `Versions`
+    * `Core KTX`: `1.3.2` -> `1.5.0`
+    * `AndroidX Recycler`: `1.2.0` -> `1.2.1`
+    * `AppCompat`: `1.2.0` -> `1.3.0`
+* `Android`
+    * `RecyclerView`:
+        * `data` of `RecyclerViewAdapter` became an abstract field
+            * New function `RecyclerViewAdapter`
+    * `Common`:
+        * New extension `View#changeVisibility`
+    * `Repos`:
+        * `Common`:
+            * `WriteOneToManyRepo` got new function `clearWithValue`
+            * `Android`:
+                * New extension `SQLiteDatabase#selectDistinct`
+                * Fixes in `OneToManyAndroidRepo`
+* `Ktor`
+    * `Server`
+        * All elements in configurators became a `fun interface`
+* `Pagination`
+    * New function `doForAllWithCurrentPaging`
+
+## 0.5.9
+
+* `Repos`
+    * `Common`
+        * `OneToManyAndroidRepo` got new primary constructor
+
+## 0.5.8
+
+* `Common`:
+    * New extension `Iterable#firstNotNull`
+* `Coroutines`
+    * New extension `Flow#firstNotNull`
+    * New extensions `CoroutineContext#LinkedSupervisorJob`, `CoroutineScope#LinkedSupervisorJob` and
+      `CoroutineScope#LinkedSupervisorScope`
+
+## 0.5.7
+
+* `Pagination`
+    * `Ktor`
+        * `Server`
+            * Fixes in extension `extractPagination`
+* `Repos`
+    * `Cache`
+        * All standard cache repos have been separated to read and read/write repos
+
 ## 0.5.6
 
 * `Versions`

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

@@ -35,9 +35,9 @@ class ActionViewHolder(
 }
 
 class ActionsRecyclerViewAdapter(
-    data: List<AlertAction>,
+    override val data: List<AlertAction>,
     private val dialogInterfaceGetter: () -> DialogInterface
-) : RecyclerViewAdapter<AlertAction>(data) {
+) : RecyclerViewAdapter<AlertAction>() {
     override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): AbstractViewHolder<AlertAction> = ActionViewHolder(
         parent, dialogInterfaceGetter
     )

android/recyclerview/build.gradle

@@ -11,6 +11,7 @@ kotlin {
         commonMain {
             dependencies {
                 api "org.jetbrains.kotlinx:kotlinx-coroutines-core:$kotlin_coroutines_version"
+                api project(":micro_utils.common")
             }
         }
         androidMain {

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

@@ -1,12 +1,21 @@
 package dev.inmo.micro_utils.android.recyclerview
 
 import android.view.View
+import android.view.ViewGroup
 import androidx.recyclerview.widget.RecyclerView
+import kotlinx.coroutines.flow.*
 
 
-abstract class RecyclerViewAdapter<T>(
-    val data: List<T>
-): RecyclerView.Adapter<AbstractViewHolder<T>>() {
+abstract class RecyclerViewAdapter<T>: RecyclerView.Adapter<AbstractViewHolder<T>>() {
+    protected abstract val data: List<T>
+
+    private val _dataCountState by lazy {
+        MutableStateFlow<Int>(data.size)
+    }
+    val dataCountState: StateFlow<Int> by lazy {
+        _dataCountState.asStateFlow()
+    }
+
     var emptyView: View? = null
         set(value) {
             field = value
@@ -18,31 +27,37 @@ abstract class RecyclerViewAdapter<T>(
             object : RecyclerView.AdapterDataObserver() {
                 override fun onItemRangeChanged(positionStart: Int, itemCount: Int) {
                     super.onItemRangeChanged(positionStart, itemCount)
+                    _dataCountState.value = data.size
                     checkEmpty()
                 }
 
                 override fun onItemRangeChanged(positionStart: Int, itemCount: Int, payload: Any?) {
                     super.onItemRangeChanged(positionStart, itemCount, payload)
+                    _dataCountState.value = data.size
                     checkEmpty()
                 }
 
                 override fun onChanged() {
                     super.onChanged()
+                    _dataCountState.value = data.size
                     checkEmpty()
                 }
 
                 override fun onItemRangeRemoved(positionStart: Int, itemCount: Int) {
                     super.onItemRangeRemoved(positionStart, itemCount)
+                    _dataCountState.value = data.size
                     checkEmpty()
                 }
 
                 override fun onItemRangeMoved(fromPosition: Int, toPosition: Int, itemCount: Int) {
                     super.onItemRangeMoved(fromPosition, toPosition, itemCount)
+                    _dataCountState.value = data.size
                     checkEmpty()
                 }
 
                 override fun onItemRangeInserted(positionStart: Int, itemCount: Int) {
                     super.onItemRangeInserted(positionStart, itemCount)
+                    _dataCountState.value = data.size
                     checkEmpty()
                 }
             }
@@ -58,7 +73,7 @@ abstract class RecyclerViewAdapter<T>(
 
     private fun checkEmpty() {
         emptyView ?. let {
-            if (data.isEmpty()) {
+            if (dataCountState.value == 0) {
                 it.visibility = View.VISIBLE
             } else {
                 it.visibility = View.GONE
@@ -66,3 +81,11 @@ abstract class RecyclerViewAdapter<T>(
         }
     }
 }
+
+fun <T> RecyclerViewAdapter(
+    data: List<T>,
+    onCreateViewHolder: (parent: ViewGroup, viewType: Int) -> AbstractViewHolder<T>
+) = object : RecyclerViewAdapter<T>() {
+    override val data: List<T> = data
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): AbstractViewHolder<T> = onCreateViewHolder(parent, viewType)
+}

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

@@ -0,0 +1,50 @@
+package dev.inmo.micro_utils.android.recyclerview
+
+import dev.inmo.micro_utils.common.Diff
+import dev.inmo.micro_utils.common.PreviewFeature
+import kotlinx.coroutines.*
+import kotlinx.coroutines.flow.*
+
+@PreviewFeature("This feature in preview state and may contains different bugs. " +
+                "Besides, this feature can be changed in future in non-compatible way")
+abstract class StateFlowBasedRecyclerViewAdapter<T>(
+    listeningScope: CoroutineScope,
+    dataState: StateFlow<List<T>>
+) : RecyclerViewAdapter<T>() {
+    override var data: List<T> = emptyList()
+
+    init {
+        dataState.onEach {
+            try {
+                val diffForRemoves = Diff(data, it)
+                val removedIndexes = diffForRemoves.removed.map { it.index }
+                val leftRemove = removedIndexes.toMutableList()
+                data = data.filterIndexed { i, _ ->
+                    if (i in leftRemove) {
+                        leftRemove.remove(i)
+                        true
+                    } else {
+                        false
+                    }
+                }
+                withContext(Dispatchers.Main) {
+                    removedIndexes.sortedDescending().forEach {
+                        notifyItemRemoved(it)
+                    }
+                }
+                val diffAddsAndReplaces = Diff(data, it)
+                data = it
+                withContext(Dispatchers.Main) {
+                    diffAddsAndReplaces.replaced.forEach { (from, to) ->
+                        notifyItemMoved(from.index, to.index)
+                    }
+                    diffAddsAndReplaces.added.forEach {
+                        notifyItemInserted(it.index)
+                    }
+                }
+            } catch (e: Throwable) {
+                // currently do nothing
+            }
+        }.launchIn(listeningScope)
+    }
+}

common/build.gradle

@@ -5,3 +5,18 @@ plugins {
 }
 
 apply from: "$mppProjectWithSerializationPresetPath"
+
+kotlin {
+    sourceSets {
+        jvmMain {
+            dependencies {
+                api project(":micro_utils.coroutines")
+            }
+        }
+        androidMain {
+            dependencies {
+                api project(":micro_utils.coroutines")
+            }
+        }
+    }
+}

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

@@ -16,7 +16,7 @@ package dev.inmo.micro_utils.common
     AnnotationTarget.TYPEALIAS,
     AnnotationTarget.TYPE_PARAMETER
 )
-annotation class PreviewFeature
+annotation class PreviewFeature(val message: String = "It is possible, that behaviour of this thing will be changed or removed in future releases")
 
 @RequiresOptIn(
     "This thing is marked as warned. See message of warn to get more info",

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

@@ -7,9 +7,17 @@ import kotlinx.serialization.encoding.Decoder
 import kotlinx.serialization.encoding.Encoder
 
 typealias ByteArrayAllocator = () -> ByteArray
+typealias SuspendByteArrayAllocator = suspend () -> ByteArray
 
 val ByteArray.asAllocator: ByteArrayAllocator
     get() = { this }
+val ByteArray.asSuspendAllocator: SuspendByteArrayAllocator
+    get() = { this }
+val ByteArrayAllocator.asSuspendAllocator: SuspendByteArrayAllocator
+    get() = { this() }
+suspend fun SuspendByteArrayAllocator.asAllocator(): ByteArrayAllocator {
+    return invoke().asAllocator
+}
 
 object ByteArrayAllocatorSerializer : KSerializer<ByteArrayAllocator> {
     private val realSerializer = ByteArraySerializer()
@@ -17,7 +25,7 @@ object ByteArrayAllocatorSerializer : KSerializer<ByteArrayAllocator> {
 
     override fun deserialize(decoder: Decoder): ByteArrayAllocator {
         val bytes = realSerializer.deserialize(decoder)
-        return { bytes }
+        return bytes.asAllocator
     }
 
     override fun serialize(encoder: Encoder, value: ByteArrayAllocator) {

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

@@ -0,0 +1,3 @@
+package dev.inmo.micro_utils.common
+
+fun <T> Iterable<T?>.firstNotNull() = first { it != null }!!

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

@@ -0,0 +1,31 @@
+package dev.inmo.micro_utils.common
+
+import kotlinx.serialization.Serializable
+import kotlin.jvm.JvmInline
+
+@Serializable
+@JvmInline
+value class FileName(val string: String) {
+    val name: String
+        get() = string.takeLastWhile { it != '/' }
+    val extension: String
+        get() = name.takeLastWhile { it != '.' }
+    val nameWithoutExtension: String
+        get() {
+            val filename = name
+            return filename.indexOfLast { it == '.' }.takeIf { it > -1 } ?.let {
+                filename.substring(0, it)
+            } ?: filename
+        }
+    override fun toString(): String = string
+}
+
+
+@PreviewFeature
+expect class MPPFile
+
+expect val MPPFile.filename: FileName
+expect val MPPFile.filesize: Long
+expect val MPPFile.bytesAllocator: SuspendByteArrayAllocator
+suspend fun MPPFile.bytes() = bytesAllocator()
+

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

@@ -0,0 +1,32 @@
+package dev.inmo.micro_utils.common
+
+import org.khronos.webgl.ArrayBuffer
+import org.w3c.dom.ErrorEvent
+import org.w3c.files.File
+import org.w3c.files.FileReader
+import kotlin.js.Promise
+
+actual typealias MPPFile = File
+
+fun MPPFile.readBytesPromise() = Promise<ByteArray> { success, failure ->
+    val reader = FileReader()
+    reader.onload = {
+        success((reader.result as ArrayBuffer).toByteArray())
+        Unit
+    }
+    reader.onerror = {
+        failure(Exception((it as ErrorEvent).message))
+        Unit
+    }
+    reader.readAsArrayBuffer(this)
+}
+
+private suspend fun MPPFile.dirtyReadBytes(): ByteArray = readBytesPromise().await()
+
+actual val MPPFile.filename: FileName
+    get() = FileName(name)
+actual val MPPFile.filesize: Long
+    get() = size.toLong()
+@Warning("That is not optimized version of bytes allocator. Use asyncBytesAllocator everywhere you can")
+actual val MPPFile.bytesAllocator: SuspendByteArrayAllocator
+    get() = ::dirtyReadBytes

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

@@ -0,0 +1,8 @@
+package dev.inmo.micro_utils.common
+
+import kotlin.coroutines.*
+import kotlin.js.Promise
+
+suspend fun <T> Promise<T>.await(): T = suspendCoroutine { cont ->
+    then({ cont.resume(it) }, { cont.resumeWithException(it) })
+}

common/src/jvmMain/kotlin/dev/inmo/micro_utils/common/JVMMPPFile.kt

@@ -0,0 +1,20 @@
+package dev.inmo.micro_utils.common
+
+import dev.inmo.micro_utils.coroutines.doInIO
+import dev.inmo.micro_utils.coroutines.doOutsideOfCoroutine
+import java.io.File
+
+actual typealias MPPFile = File
+
+actual val MPPFile.filename: FileName
+    get() = FileName(name)
+actual val MPPFile.filesize: Long
+    get() = length()
+actual val MPPFile.bytesAllocator: SuspendByteArrayAllocator
+    get() = {
+        doInIO {
+            doOutsideOfCoroutine {
+                readBytes()
+            }
+        }
+    }

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

@@ -33,3 +33,15 @@ fun View.toggleVisibility(goneOnHide: Boolean = true) {
         show()
     }
 }
+
+fun View.changeVisibility(show: Boolean = !isShown, goneOnHide: Boolean = true) {
+    if (show) {
+        show()
+    } else {
+        if (goneOnHide) {
+            gone()
+        } else {
+            hide()
+        }
+    }
+}

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

@@ -0,0 +1,6 @@
+package dev.inmo.micro_utils.coroutines
+
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.first
+
+suspend fun <T> Flow<T?>.firstNotNull() = first { it != null }!!

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

@@ -0,0 +1,17 @@
+package dev.inmo.micro_utils.coroutines
+
+import kotlinx.coroutines.*
+import kotlin.coroutines.CoroutineContext
+
+fun CoroutineContext.LinkedSupervisorJob(
+    additionalContext: CoroutineContext? = null
+) = SupervisorJob(job).let { if (additionalContext != null) it + additionalContext else it }
+fun CoroutineScope.LinkedSupervisorJob(
+    additionalContext: CoroutineContext? = null
+) = coroutineContext.LinkedSupervisorJob(additionalContext)
+
+fun CoroutineScope.LinkedSupervisorScope(
+    additionalContext: CoroutineContext? = null
+) = CoroutineScope(
+    coroutineContext + LinkedSupervisorJob(additionalContext)
+)

fsm/common/build.gradle

@@ -0,0 +1,17 @@
+plugins {
+    id "org.jetbrains.kotlin.multiplatform"
+    id "org.jetbrains.kotlin.plugin.serialization"
+    id "com.android.library"
+}
+
+apply from: "$mppProjectWithSerializationPresetPath"
+
+kotlin {
+    sourceSets {
+        commonMain {
+            dependencies {
+                api project(":micro_utils.coroutines")
+            }
+        }
+    }
+}

fsm/common/src/commonMain/kotlin/dev/inmo/micro_utils/fsm/common/State.kt

@@ -0,0 +1,5 @@
+package dev.inmo.micro_utils.fsm.common
+
+interface State {
+    val context: Any
+}

fsm/common/src/commonMain/kotlin/dev/inmo/micro_utils/fsm/common/StateHandlerHolder.kt

@@ -0,0 +1,15 @@
+package dev.inmo.micro_utils.fsm.common
+
+import kotlin.reflect.KClass
+
+class StateHandlerHolder<I : State>(
+    private val inputKlass: KClass<I>,
+    private val strict: Boolean = false,
+    private val delegateTo: StatesHandler<I>
+) : StatesHandler<State> {
+    fun checkHandleable(state: State) = state::class == inputKlass || (!strict && inputKlass.isInstance(state))
+
+    override suspend fun StatesMachine.handleState(state: State): State? {
+        return delegateTo.run { handleState(state as I) }
+    }
+}

fsm/common/src/commonMain/kotlin/dev/inmo/micro_utils/fsm/common/StatesHandler.kt

@@ -0,0 +1,5 @@
+package dev.inmo.micro_utils.fsm.common
+
+fun interface StatesHandler<I : State> {
+    suspend fun StatesMachine.handleState(state: I): State?
+}

fsm/common/src/commonMain/kotlin/dev/inmo/micro_utils/fsm/common/StatesMachine.kt

@@ -0,0 +1,46 @@
+package dev.inmo.micro_utils.fsm.common
+
+import dev.inmo.micro_utils.coroutines.*
+import kotlinx.coroutines.*
+import kotlinx.coroutines.flow.asFlow
+
+private suspend fun <I : State> StatesMachine.launchStateHandling(
+    state: State,
+    handlers: List<StateHandlerHolder<out I>>
+): State? {
+    return handlers.firstOrNull { it.checkHandleable(state) } ?.run {
+        handleState(state)
+    }
+}
+
+class StatesMachine (
+    private val statesManager: StatesManager,
+    private val handlers: List<StateHandlerHolder<*>>
+) : StatesHandler<State> {
+    override suspend fun StatesMachine.handleState(state: State): State? = launchStateHandling(state, handlers)
+
+    fun start(scope: CoroutineScope): Job = scope.launchSafelyWithoutExceptions {
+        val statePerformer: suspend (State) -> Unit = { state: State ->
+            val newState = launchStateHandling(state, handlers)
+            if (newState != null) {
+                statesManager.update(state, newState)
+            } else {
+                statesManager.endChain(state)
+            }
+        }
+        statesManager.onStartChain.subscribeSafelyWithoutExceptions(this) {
+            launch { statePerformer(it) }
+        }
+        statesManager.onChainStateUpdated.subscribeSafelyWithoutExceptions(this) {
+            launch { statePerformer(it.second) }
+        }
+
+        statesManager.getActiveStates().forEach {
+            launch { statePerformer(it) }
+        }
+    }
+
+    suspend fun startChain(state: State) {
+        statesManager.startChain(state)
+    }
+}

fsm/common/src/commonMain/kotlin/dev/inmo/micro_utils/fsm/common/StatesManager.kt

@@ -0,0 +1,92 @@
+package dev.inmo.micro_utils.fsm.common
+
+import kotlinx.coroutines.flow.*
+import kotlinx.coroutines.sync.Mutex
+import kotlinx.coroutines.sync.withLock
+
+interface StatesManager {
+    val onChainStateUpdated: Flow<Pair<State, State>>
+    val onStartChain: Flow<State>
+    val onEndChain: Flow<State>
+
+
+    /**
+     * Must set current set using [State.context]
+     */
+    suspend fun update(old: State, new: State)
+
+    /**
+     * Starts chain with [state] as first [State]. May returns false in case of [State.context] of [state] is already
+     * busy by the other [State]
+     */
+    suspend fun startChain(state: State)
+
+    /**
+     * Ends chain with context from [state]. In case when [State.context] of [state] is absent, [state] should be just
+     * ignored
+     */
+    suspend fun endChain(state: State)
+
+    suspend fun getActiveStates(): List<State>
+}
+
+/**
+ * @param onContextsConflictResolver Receive old [State], new one and the state currently placed on new [State.context]
+ * key. In case when this callback will returns true, the state placed on [State.context] of new will be replaced by
+ * new state by using [endChain] with that state
+ */
+class InMemoryStatesManager(
+    private val onContextsConflictResolver: suspend (old: State, new: State, currentNew: State) -> Boolean = { _, _, _ -> true }
+) : StatesManager {
+    private val _onChainStateUpdated = MutableSharedFlow<Pair<State, State>>(0)
+    override val onChainStateUpdated: Flow<Pair<State, State>> = _onChainStateUpdated.asSharedFlow()
+    private val _onStartChain = MutableSharedFlow<State>(0)
+    override val onStartChain: Flow<State> = _onStartChain.asSharedFlow()
+    private val _onEndChain = MutableSharedFlow<State>(0)
+    override val onEndChain: Flow<State> = _onEndChain.asSharedFlow()
+
+    private val contextsToStates = mutableMapOf<Any, State>()
+    private val mapMutex = Mutex()
+
+    override suspend fun update(old: State, new: State) = mapMutex.withLock {
+        when {
+            contextsToStates[old.context] != old -> return@withLock
+            old.context == new.context || !contextsToStates.containsKey(new.context) -> {
+                contextsToStates[old.context] = new
+                _onChainStateUpdated.emit(old to new)
+            }
+            else -> {
+                val stateOnNewOneContext = contextsToStates.getValue(new.context)
+                if (onContextsConflictResolver(old, new, stateOnNewOneContext)) {
+                    endChainWithoutLock(stateOnNewOneContext)
+                    contextsToStates.remove(old.context)
+                    contextsToStates[new.context] = new
+                    _onChainStateUpdated.emit(old to new)
+                }
+            }
+        }
+    }
+
+    override suspend fun startChain(state: State) = mapMutex.withLock {
+        if (!contextsToStates.containsKey(state.context)) {
+            contextsToStates[state.context] = state
+            _onStartChain.emit(state)
+        }
+    }
+
+    private suspend fun endChainWithoutLock(state: State) {
+        if (contextsToStates[state.context] == state) {
+            contextsToStates.remove(state.context)
+            _onEndChain.emit(state)
+        }
+    }
+
+    override suspend fun endChain(state: State) {
+        mapMutex.withLock {
+            endChainWithoutLock(state)
+        }
+    }
+
+    override suspend fun getActiveStates(): List<State> = contextsToStates.values.toList()
+
+}

fsm/common/src/commonMain/kotlin/dev/inmo/micro_utils/fsm/common/dsl/FSMBuilder.kt

@@ -0,0 +1,35 @@
+package dev.inmo.micro_utils.fsm.common.dsl
+
+import dev.inmo.micro_utils.fsm.common.*
+import kotlin.reflect.KClass
+
+class FSMBuilder(
+    var statesManager: StatesManager = InMemoryStatesManager()
+) {
+    private var states = mutableListOf<StateHandlerHolder<*>>()
+
+    fun <I : State> add(kClass: KClass<I>, handler: StatesHandler<I>) {
+        states.add(StateHandlerHolder(kClass, false, handler))
+    }
+
+    fun <I : State> addStrict(kClass: KClass<I>, handler: StatesHandler<I>) {
+        states.add(StateHandlerHolder(kClass, true, handler))
+    }
+
+    fun build() = StatesMachine(
+        statesManager,
+        states.toList()
+    )
+}
+
+inline fun <reified I : State> FSMBuilder.onStateOrSubstate(handler: StatesHandler<I>) {
+    add(I::class, handler)
+}
+
+inline fun <reified I : State> FSMBuilder.strictlyOn(handler: StatesHandler<I>) {
+    addStrict(I::class, handler)
+}
+
+fun buildFSM(
+    block: FSMBuilder.() -> Unit
+): StatesMachine = FSMBuilder().apply(block).build()

fsm/common/src/jvmTest/kotlin/PlayableMain.kt

@@ -0,0 +1,53 @@
+import dev.inmo.micro_utils.fsm.common.*
+import dev.inmo.micro_utils.fsm.common.dsl.buildFSM
+import dev.inmo.micro_utils.fsm.common.dsl.strictlyOn
+import kotlinx.coroutines.*
+
+sealed interface TrafficLightState : State {
+    val trafficLightNumber: Int
+    override val context: Int
+        get() = trafficLightNumber
+}
+data class GreenCommon(override val trafficLightNumber: Int) : TrafficLightState
+data class YellowCommon(override val trafficLightNumber: Int) : TrafficLightState
+data class RedCommon(override val trafficLightNumber: Int) : TrafficLightState
+
+class PlayableMain {
+//    @Test
+    fun test() {
+        runBlocking {
+            val countOfTrafficLights = 10
+            val initialStates = (0 until countOfTrafficLights).map {
+                when (0/*Random.nextInt(3)*/) {
+                    0 -> GreenCommon(it)
+                    1 -> YellowCommon(it)
+                    else -> RedCommon(it)
+                }
+            }
+
+            val statesManager = InMemoryStatesManager()
+
+            val machine = buildFSM {
+                strictlyOn<GreenCommon> {
+                    delay(1000L)
+                    YellowCommon(it.context).also(::println)
+                }
+                strictlyOn<YellowCommon> {
+                    delay(1000L)
+                    RedCommon(it.context).also(::println)
+                }
+                strictlyOn<RedCommon> {
+                    delay(1000L)
+                    GreenCommon(it.context).also(::println)
+                }
+                this.statesManager = statesManager
+            }
+
+            initialStates.forEach { machine.startChain(it) }
+
+            val scope = CoroutineScope(Dispatchers.Default)
+            machine.start(scope).join()
+
+        }
+    }
+}

fsm/common/src/main/AndroidManifest.xml

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

fsm/repos/common/build.gradle

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

fsm/repos/common/src/commonMain/kotlin/dev/inmo/micro_utils/fsm/repos/common/KeyValueBasedStatesManager.kt

@@ -0,0 +1,83 @@
+package dev.inmo.micro_utils.fsm.repos.common
+
+import dev.inmo.micro_utils.fsm.common.State
+import dev.inmo.micro_utils.fsm.common.StatesManager
+import dev.inmo.micro_utils.repos.*
+import dev.inmo.micro_utils.repos.mappers.withMapper
+import dev.inmo.micro_utils.repos.pagination.getAll
+import kotlinx.coroutines.flow.*
+import kotlinx.coroutines.sync.Mutex
+import kotlinx.coroutines.sync.withLock
+
+class KeyValueBasedStatesManager(
+    private val keyValueRepo: KeyValueRepo<Any, State>,
+    private val onContextsConflictResolver: suspend (old: State, new: State, currentNew: State) -> Boolean = { _, _, _ -> true }
+) : StatesManager {
+    private val _onChainStateUpdated = MutableSharedFlow<Pair<State, State>>(0)
+    override val onChainStateUpdated: Flow<Pair<State, State>> = _onChainStateUpdated.asSharedFlow()
+    private val _onEndChain = MutableSharedFlow<State>(0)
+    override val onEndChain: Flow<State> = _onEndChain.asSharedFlow()
+
+    override val onStartChain: Flow<State> = keyValueRepo.onNewValue.map { it.second }
+
+    private val mutex = Mutex()
+
+    override suspend fun update(old: State, new: State) {
+        mutex.withLock {
+            when {
+                keyValueRepo.get(old.context) != old -> return@withLock
+                old.context == new.context || !keyValueRepo.contains(new.context) -> {
+                    keyValueRepo.set(old.context, new)
+                    _onChainStateUpdated.emit(old to new)
+                }
+                else -> {
+                    val stateOnNewOneContext = keyValueRepo.get(new.context)!!
+                    if (onContextsConflictResolver(old, new, stateOnNewOneContext)) {
+                        endChainWithoutLock(stateOnNewOneContext)
+                        keyValueRepo.unset(old.context)
+                        keyValueRepo.set(new.context, new)
+                        _onChainStateUpdated.emit(old to new)
+                    }
+                }
+            }
+
+        }
+    }
+
+    override suspend fun startChain(state: State) {
+        if (!keyValueRepo.contains(state.context)) {
+            keyValueRepo.set(state.context, state)
+        }
+    }
+
+    private suspend fun endChainWithoutLock(state: State) {
+        if (keyValueRepo.get(state.context) == state) {
+            keyValueRepo.unset(state.context)
+            _onEndChain.emit(state)
+        }
+    }
+
+    override suspend fun endChain(state: State) {
+        mutex.withLock { endChainWithoutLock(state) }
+    }
+
+    override suspend fun getActiveStates(): List<State> {
+        return keyValueRepo.getAll { keys(it) }.map { it.second }
+    }
+
+}
+
+inline fun <reified TargetContextType, reified TargetStateType> createStatesManager(
+    targetKeyValueRepo: KeyValueRepo<TargetContextType, TargetStateType>,
+    noinline contextToOutTransformer: suspend Any.() -> TargetContextType,
+    noinline stateToOutTransformer: suspend State.() -> TargetStateType,
+    noinline outToContextTransformer: suspend TargetContextType.() -> Any,
+    noinline outToStateTransformer: suspend TargetStateType.() -> State,
+) = KeyValueBasedStatesManager(
+    targetKeyValueRepo.withMapper<Any, State, TargetContextType, TargetStateType>(
+        contextToOutTransformer,
+        stateToOutTransformer,
+        outToContextTransformer,
+        outToStateTransformer
+    )
+)

fsm/repos/common/src/main/AndroidManifest.xml

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

gradle.properties

@@ -22,9 +22,9 @@ uuidVersion=0.3.0
 
 # ANDROID
 
-core_ktx_version=1.3.2
-androidx_recycler_version=1.2.0
-appcompat_version=1.2.0
+core_ktx_version=1.5.0
+androidx_recycler_version=1.2.1
+appcompat_version=1.3.0
 
 android_minSdkVersion=19
 android_compileSdkVersion=30
@@ -45,5 +45,5 @@ dokka_version=1.4.32
 # Project data
 
 group=dev.inmo
-version=0.5.6
-android_code_version=47
+version=0.5.13
+android_code_version=54

ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/ktor/server/configurators/ApplicationCachingHeadersConfigurator.kt

@@ -8,7 +8,7 @@ import kotlinx.serialization.Contextual
 data class ApplicationCachingHeadersConfigurator(
     private val elements: List<@Contextual Element>
 ) : KtorApplicationConfigurator {
-    interface Element { operator fun CachingHeaders.Configuration.invoke() }
+    fun interface Element { operator fun CachingHeaders.Configuration.invoke() }
 
     override fun Application.configure() {
         install(CachingHeaders) {

ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/ktor/server/configurators/ApplicationRoutingConfigurator.kt

@@ -10,17 +10,18 @@ import kotlinx.serialization.Serializable
 class ApplicationRoutingConfigurator(
     private val elements: List<@Contextual Element>
 ) : KtorApplicationConfigurator {
-    interface Element { operator fun Route.invoke() }
+    fun interface Element { operator fun Route.invoke() }
+    private val rootInstaller = Element {
+        elements.forEach {
+            it.apply { invoke() }
+        }
+    }
 
     override fun Application.configure() {
-        try {
-            feature(Routing)
-        } catch (e: IllegalStateException) {
-            install(Routing) {
-                elements.forEach {
-                    it.apply { invoke() }
-                }
-            }
+        featureOrNull(Routing) ?.apply {
+            rootInstaller.apply { invoke() }
+        } ?: install(Routing) {
+            rootInstaller.apply { invoke() }
         }
     }
 }

ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/ktor/server/configurators/ApplicationSessionsConfigurator.kt

@@ -8,7 +8,7 @@ import kotlinx.serialization.Contextual
 class ApplicationSessionsConfigurator(
     private val elements: List<@Contextual Element>
 ) : KtorApplicationConfigurator {
-    interface Element { operator fun Sessions.Configuration.invoke() }
+    fun interface Element { operator fun Sessions.Configuration.invoke() }
 
     override fun Application.configure() {
         install(Sessions) {

ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/ktor/server/configurators/StatusPagesConfigurator.kt

@@ -8,7 +8,7 @@ import kotlinx.serialization.Contextual
 class StatusPagesConfigurator(
     private val elements: List<@Contextual Element>
 ) : KtorApplicationConfigurator {
-    interface Element { operator fun StatusPages.Configuration.invoke() }
+    fun interface Element { operator fun StatusPages.Configuration.invoke() }
 
     override fun Application.configure() {
         install(StatusPages) {

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

@@ -33,3 +33,8 @@ suspend fun <T> doAllWithCurrentPaging(
         block
     )
 }
+
+suspend fun <T> doForAllWithCurrentPaging(
+    initialPagination: Pagination = FirstPagePagination(),
+    block: suspend (Pagination) -> PaginationResult<T>
+) = doAllWithCurrentPaging(initialPagination, block)

pagination/ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/pagination/ServerPaginationHelpers.kt

@@ -5,8 +5,8 @@ import io.ktor.http.Parameters
 
 val Parameters.extractPagination: Pagination
     get() = SimplePagination(
-        get("page") ?.toIntOrNull() ?: 0,
-        get("size") ?.toIntOrNull() ?: defaultPaginationPageSize
+        get(paginationPageKey) ?.toIntOrNull() ?: 0,
+        get(paginationSizeKey) ?.toIntOrNull() ?: defaultPaginationPageSize
     )
 
 val ApplicationCall.extractPagination: Pagination

repos/cache/src/commonMain/kotlin/dev/inmo/micro_utils/repos/cache/CRUDCacheRepo.kt

@@ -6,19 +6,29 @@ import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.flow.launchIn
 import kotlinx.coroutines.flow.onEach
 
-open class CRUDCacheRepo<ObjectType, IdType, InputValueType>(
-    protected val parentRepo: CRUDRepo<ObjectType, IdType, InputValueType>,
+open class ReadCRUDCacheRepo<ObjectType, IdType>(
+    protected val parentRepo: ReadCRUDRepo<ObjectType, IdType>,
     protected val kvCache: KVCache<IdType, ObjectType>,
-    scope: CoroutineScope = CoroutineScope(Dispatchers.Default),
     protected val idGetter: (ObjectType) -> IdType
-) : CRUDRepo<ObjectType, IdType, InputValueType> by parentRepo {
-    protected val onNewJob = parentRepo.newObjectsFlow.onEach { kvCache.set(idGetter(it), it) }.launchIn(scope)
-    protected val onUpdatedJob = parentRepo.updatedObjectsFlow.onEach { kvCache.set(idGetter(it), it) }.launchIn(scope)
-    protected val onRemoveJob = parentRepo.deletedObjectsIdsFlow.onEach { kvCache.unset(it) }.launchIn(scope)
-
+) : ReadCRUDRepo<ObjectType, IdType> by parentRepo {
     override suspend fun getById(id: IdType): ObjectType? = kvCache.get(id) ?: (parentRepo.getById(id) ?.also {
         kvCache.set(id, it)
     })
 
     override suspend fun contains(id: IdType): Boolean = kvCache.contains(id) || parentRepo.contains(id)
 }
+
+open class CRUDCacheRepo<ObjectType, IdType, InputValueType>(
+    parentRepo: CRUDRepo<ObjectType, IdType, InputValueType>,
+    kvCache: KVCache<IdType, ObjectType>,
+    scope: CoroutineScope = CoroutineScope(Dispatchers.Default),
+    idGetter: (ObjectType) -> IdType
+) : ReadCRUDCacheRepo<ObjectType, IdType>(
+    parentRepo,
+    kvCache,
+    idGetter
+), CRUDRepo<ObjectType, IdType, InputValueType>, WriteCRUDRepo<ObjectType, IdType, InputValueType> by parentRepo {
+    protected val onNewJob = parentRepo.newObjectsFlow.onEach { kvCache.set(idGetter(it), it) }.launchIn(scope)
+    protected val onUpdatedJob = parentRepo.updatedObjectsFlow.onEach { kvCache.set(idGetter(it), it) }.launchIn(scope)
+    protected val onRemoveJob = parentRepo.deletedObjectsIdsFlow.onEach { kvCache.unset(it) }.launchIn(scope)
+}

repos/cache/src/commonMain/kotlin/dev/inmo/micro_utils/repos/cache/KeyValueCacheRepo.kt

@@ -7,14 +7,19 @@ import kotlinx.coroutines.flow.*
 import kotlinx.coroutines.sync.Mutex
 import kotlinx.coroutines.sync.withLock
 
-open class KeyValueCacheRepo<Key,Value>(
-    protected val parentRepo: KeyValueRepo<Key, Value>,
+open class ReadKeyValueCacheRepo<Key,Value>(
+    protected val parentRepo: ReadKeyValueRepo<Key, Value>,
     protected val kvCache: KVCache<Key, Value>,
-    scope: CoroutineScope = CoroutineScope(Dispatchers.Default)
-) : KeyValueRepo<Key,Value> by parentRepo {
-    protected val onNewJob = parentRepo.onNewValue.onEach { kvCache.set(it.first, it.second) }.launchIn(scope)
-    protected val onRemoveJob = parentRepo.onValueRemoved.onEach { kvCache.unset(it) }.launchIn(scope)
-
+) : ReadKeyValueRepo<Key,Value> by parentRepo {
     override suspend fun get(k: Key): Value? = kvCache.get(k) ?: parentRepo.get(k) ?.also { kvCache.set(k, it) }
     override suspend fun contains(key: Key): Boolean = kvCache.contains(key) || parentRepo.contains(key)
 }
+
+open class KeyValueCacheRepo<Key,Value>(
+    parentRepo: KeyValueRepo<Key, Value>,
+    kvCache: KVCache<Key, Value>,
+    scope: CoroutineScope = CoroutineScope(Dispatchers.Default)
+) : ReadKeyValueCacheRepo<Key,Value>(parentRepo, kvCache), KeyValueRepo<Key,Value>, WriteKeyValueRepo<Key, Value> by parentRepo {
+    protected val onNewJob = parentRepo.onNewValue.onEach { kvCache.set(it.first, it.second) }.launchIn(scope)
+    protected val onRemoveJob = parentRepo.onValueRemoved.onEach { kvCache.unset(it) }.launchIn(scope)
+}

repos/cache/src/commonMain/kotlin/dev/inmo/micro_utils/repos/cache/KeyValuesCacheRepo.kt

@@ -11,15 +11,10 @@ import kotlinx.coroutines.flow.*
 import kotlinx.coroutines.sync.Mutex
 import kotlinx.coroutines.sync.withLock
 
-open class KeyValuesCacheRepo<Key,Value>(
-    protected val parentRepo: KeyValuesRepo<Key, Value>,
-    protected val kvCache: KVCache<Key, List<Value>>,
-    scope: CoroutineScope = CoroutineScope(Dispatchers.Default)
-) : KeyValuesRepo<Key,Value> by parentRepo {
-    protected val onNewJob = parentRepo.onNewValue.onEach { kvCache.set(it.first, kvCache.get(it.first) ?.plus(it.second) ?: listOf(it.second)) }.launchIn(scope)
-    protected val onRemoveJob = parentRepo.onValueRemoved.onEach { kvCache.set(it.first, kvCache.get(it.first) ?.minus(it.second) ?: return@onEach) }.launchIn(scope)
-    protected val onDataClearedJob = parentRepo.onDataCleared.onEach { kvCache.unset(it) }.launchIn(scope)
-
+open class ReadKeyValuesCacheRepo<Key,Value>(
+    protected val parentRepo: ReadKeyValuesRepo<Key, Value>,
+    protected val kvCache: KVCache<Key, List<Value>>
+) : ReadKeyValuesRepo<Key,Value> by parentRepo {
     override suspend fun get(k: Key, pagination: Pagination, reversed: Boolean): PaginationResult<Value> {
         return kvCache.get(k) ?.paginate(
             pagination.let { if (reversed) it.reverse(count(k)) else it }
@@ -35,3 +30,13 @@ open class KeyValuesCacheRepo<Key,Value>(
     override suspend fun contains(k: Key, v: Value): Boolean = kvCache.get(k) ?.contains(v) ?: parentRepo.contains(k, v)
     override suspend fun contains(k: Key): Boolean = kvCache.contains(k) || parentRepo.contains(k)
 }
+
+open class KeyValuesCacheRepo<Key,Value>(
+    parentRepo: KeyValuesRepo<Key, Value>,
+    kvCache: KVCache<Key, List<Value>>,
+    scope: CoroutineScope = CoroutineScope(Dispatchers.Default)
+) : ReadKeyValuesCacheRepo<Key,Value>(parentRepo, kvCache), KeyValuesRepo<Key,Value>, WriteKeyValuesRepo<Key,Value> by parentRepo {
+    protected val onNewJob = parentRepo.onNewValue.onEach { kvCache.set(it.first, kvCache.get(it.first) ?.plus(it.second) ?: listOf(it.second)) }.launchIn(scope)
+    protected val onRemoveJob = parentRepo.onValueRemoved.onEach { kvCache.set(it.first, kvCache.get(it.first) ?.minus(it.second) ?: return@onEach) }.launchIn(scope)
+    protected val onDataClearedJob = parentRepo.onDataCleared.onEach { kvCache.unset(it) }.launchIn(scope)
+}

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

@@ -1,6 +1,7 @@
 package dev.inmo.micro_utils.repos
 
 import dev.inmo.micro_utils.pagination.*
+import dev.inmo.micro_utils.pagination.utils.doForAllWithCurrentPaging
 import dev.inmo.micro_utils.pagination.utils.getAllWithNextPaging
 import kotlinx.coroutines.flow.Flow
 
@@ -47,6 +48,7 @@ interface WriteOneToManyKeyValueRepo<Key, Value> : Repo {
     suspend fun remove(toRemove: Map<Key, List<Value>>)
 
     suspend fun clear(k: Key)
+    suspend fun clearWithValue(v: Value)
 
     suspend fun set(toSet: Map<Key, List<Value>>) {
         toSet.keys.forEach { key -> clear(key) }
@@ -87,7 +89,19 @@ suspend inline fun <Key, Value> WriteOneToManyKeyValueRepo<Key, Value>.set(
     k: Key, vararg v: Value
 ) = set(k, v.toList())
 
-interface OneToManyKeyValueRepo<Key, Value> : ReadOneToManyKeyValueRepo<Key, Value>, WriteOneToManyKeyValueRepo<Key, Value>
+interface OneToManyKeyValueRepo<Key, Value> : ReadOneToManyKeyValueRepo<Key, Value>, WriteOneToManyKeyValueRepo<Key, Value> {
+    override suspend fun clearWithValue(v: Value) {
+        doWithPagination {
+            val keysResult = keys(v, it)
+
+            if (keysResult.results.isNotEmpty()) {
+                remove(keysResult.results.map { it to listOf(v) })
+            }
+
+            keysResult.currentPageIfNotEmpty()
+        }
+    }
+}
 typealias KeyValuesRepo<Key,Value> = OneToManyKeyValueRepo<Key, Value>
 
 suspend inline fun <Key, Value> WriteOneToManyKeyValueRepo<Key, Value>.remove(

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

@@ -114,6 +114,7 @@ open class MapperWriteOneToManyKeyValueRepo<FromKey, FromValue, ToKey, ToValue>(
     }
 
     override suspend fun clear(k: FromKey) = to.clear(k.toOutKey())
+    override suspend fun clearWithValue(v: FromValue) = to.clearWithValue(v.toOutValue())
 }
 
 @Suppress("NOTHING_TO_INLINE")

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

@@ -74,6 +74,19 @@ fun SQLiteDatabase.select(
     table, columns, selection, selectionArgs, groupBy, having, orderBy, limit
 )
 
+fun SQLiteDatabase.selectDistinct(
+    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(
+    true, table, columns, selection, selectionArgs, groupBy, having, orderBy, limit
+)
+
 fun makePlaceholders(count: Int): String {
     return (0 until count).joinToString { "?" }
 }

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

@@ -3,10 +3,7 @@ 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.*
 import dev.inmo.micro_utils.pagination.utils.reverse
 import dev.inmo.micro_utils.repos.*
 import kotlinx.coroutines.flow.Flow
@@ -20,10 +17,14 @@ private val internalSerialFormat = Json {
     ignoreUnknownKeys = true
 }
 
+typealias KeyValuesAndroidRepo<Key, Value> = OneToManyAndroidRepo<Key, Value>
+
 class OneToManyAndroidRepo<Key, Value>(
     private val tableName: String,
-    private val keySerializer: KSerializer<Key>,
-    private val valueSerializer: KSerializer<Value>,
+    private val keyAsString: Key.() -> String,
+    private val valueAsString: Value.() -> String,
+    private val keyFromString: String.() -> Key,
+    private val valueFromString: String.() -> Value,
     private val helper: SQLiteOpenHelper
 ) : OneToManyKeyValueRepo<Key, Value> {
     private val _onNewValue: MutableSharedFlow<Pair<Key, Value>> = MutableSharedFlow()
@@ -34,12 +35,9 @@ class OneToManyAndroidRepo<Key, Value>(
     override val onDataCleared: Flow<Key> = _onDataCleared.asSharedFlow()
 
     private val idColumnName = "id"
+    private val idColumnArray = arrayOf(idColumnName)
     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)
+    private val valueColumnArray = arrayOf(valueColumnName)
 
     init {
         helper.blockingWritableTransaction {
@@ -57,12 +55,23 @@ class OneToManyAndroidRepo<Key, Value>(
         helper.blockingWritableTransaction {
             for ((k, values) in toAdd) {
                 values.forEach { v ->
+                    val kAsString = k.keyAsString()
+                    val vAsString = v.valueAsString()
+                    val isThere = select(tableName,
+                        null,
+                        "$idColumnName=? AND $valueColumnName=?",
+                        arrayOf(kAsString, vAsString),
+                        limit = limitClause(1)
+                    ).use { it.moveToFirst() }
+                    if (isThere) {
+                        return@forEach
+                    }
                     insert(
                         tableName,
                         null,
                         contentValuesOf(
-                            idColumnName to k.asId(),
-                            valueColumnName to v.asValue()
+                            idColumnName to k.keyAsString(),
+                            valueColumnName to v.valueAsString()
                         )
                     ).also {
                         if (it != -1L) {
@@ -77,7 +86,7 @@ class OneToManyAndroidRepo<Key, Value>(
 
     override suspend fun clear(k: Key) {
         helper.blockingWritableTransaction {
-            delete(tableName, "$idColumnName=?", arrayOf(k.asId()))
+            delete(tableName, "$idColumnName=?", arrayOf(k.keyAsString()))
         }.also {
             if (it > 0) {
                 _onDataCleared.emit(k)
@@ -88,7 +97,7 @@ class OneToManyAndroidRepo<Key, Value>(
     override suspend fun set(toSet: Map<Key, List<Value>>) {
         val (clearedKeys, inserted) = helper.blockingWritableTransaction {
             toSet.mapNotNull { (k, _) ->
-                if (delete(tableName, "$idColumnName=?", arrayOf(k.asId())) > 0) {
+                if (delete(tableName, "$idColumnName=?", arrayOf(k.keyAsString())) > 0) {
                     k
                 } else {
                     null
@@ -98,7 +107,7 @@ class OneToManyAndroidRepo<Key, Value>(
                     insert(
                         tableName,
                         null,
-                        contentValuesOf(idColumnName to k.asId(), valueColumnName to v.asValue())
+                        contentValuesOf(idColumnName to k.keyAsString(), valueColumnName to v.valueAsString())
                     )
                     k to v
                 }
@@ -109,7 +118,7 @@ class OneToManyAndroidRepo<Key, Value>(
     }
 
     override suspend fun contains(k: Key): Boolean = helper.blockingReadableTransaction {
-        select(tableName, selection = "$idColumnName=?", selectionArgs = arrayOf(k.asId()), limit = FirstPagePagination(1).limitClause()).use {
+        select(tableName, selection = "$idColumnName=?", selectionArgs = arrayOf(k.keyAsString()), limit = firstPageWithOneElementPagination.limitClause()).use {
             it.count > 0
         }
     }
@@ -118,14 +127,14 @@ class OneToManyAndroidRepo<Key, Value>(
         select(
             tableName,
             selection = "$idColumnName=? AND $valueColumnName=?",
-            selectionArgs = arrayOf(k.asId(), v.asValue()),
+            selectionArgs = arrayOf(k.keyAsString(), v.valueAsString()),
             limit = FirstPagePagination(1).limitClause()
         ).use {
             it.count > 0
         }
     }
 
-    override suspend fun count(): Long =helper.blockingReadableTransaction {
+    override suspend fun count(): Long = helper.blockingReadableTransaction {
         select(
             tableName
         ).use {
@@ -134,7 +143,7 @@ class OneToManyAndroidRepo<Key, Value>(
     }.toLong()
 
     override suspend fun count(k: Key): Long = helper.blockingReadableTransaction {
-        select(tableName, selection = "$idColumnName=?", selectionArgs = arrayOf(k.asId()), limit = FirstPagePagination(1).limitClause()).use {
+        selectDistinct(tableName, columns = valueColumnArray, selection = "$idColumnName=?", selectionArgs = arrayOf(k.keyAsString()), limit = FirstPagePagination(1).limitClause()).use {
             it.count
         }
     }.toLong()
@@ -144,18 +153,25 @@ class OneToManyAndroidRepo<Key, Value>(
         pagination: Pagination,
         reversed: Boolean
     ): PaginationResult<Value> = count(k).let { count ->
+        if (pagination.firstIndex >= count) {
+            return@let emptyList<Value>().createPaginationResult(
+                pagination,
+                count
+            )
+        }
         val resultPagination = pagination.let { if (reversed) pagination.reverse(count) else pagination }
         helper.blockingReadableTransaction {
             select(
                 tableName,
+                valueColumnArray,
                 selection = "$idColumnName=?",
-                selectionArgs = arrayOf(k.asId()),
+                selectionArgs = arrayOf(k.keyAsString()),
                 limit = resultPagination.limitClause()
             ).use { c ->
                 mutableListOf<Value>().also {
                     if (c.moveToFirst()) {
                         do {
-                            it.add(c.getString(valueColumnName).asValue())
+                            it.add(c.getString(valueColumnName).valueFromString())
                         } while (c.moveToNext())
                     }
                 }
@@ -170,16 +186,23 @@ class OneToManyAndroidRepo<Key, Value>(
         pagination: Pagination,
         reversed: Boolean
     ): PaginationResult<Key> = count().let { count ->
+        if (pagination.firstIndex >= count) {
+            return@let emptyList<Key>().createPaginationResult(
+                pagination,
+                count
+            )
+        }
         val resultPagination = pagination.let { if (reversed) pagination.reverse(count) else pagination }
         helper.blockingReadableTransaction {
-            select(
+            selectDistinct(
                 tableName,
+                idColumnArray,
                 limit = resultPagination.limitClause()
             ).use { c ->
                 mutableListOf<Key>().also {
                     if (c.moveToFirst()) {
                         do {
-                            it.add(c.getString(idColumnName).asKey())
+                            it.add(c.getString(idColumnName).keyFromString())
                         } while (c.moveToNext())
                     }
                 }
@@ -197,16 +220,17 @@ class OneToManyAndroidRepo<Key, Value>(
     ): PaginationResult<Key> = count().let { count ->
         val resultPagination = pagination.let { if (reversed) pagination.reverse(count) else pagination }
         helper.blockingReadableTransaction {
-            select(
+            selectDistinct(
                 tableName,
+                idColumnArray,
                 selection = "$valueColumnName=?",
-                selectionArgs = arrayOf(v.asValue()),
+                selectionArgs = arrayOf(v.valueAsString()),
                 limit = resultPagination.limitClause()
             ).use { c ->
                 mutableListOf<Key>().also {
                     if (c.moveToFirst()) {
                         do {
-                            it.add(c.getString(idColumnName).asKey())
+                            it.add(c.getString(idColumnName).keyFromString())
                         } while (c.moveToNext())
                     }
                 }
@@ -221,7 +245,7 @@ class OneToManyAndroidRepo<Key, Value>(
         helper.blockingWritableTransaction {
             toRemove.flatMap { (k, vs) ->
                 vs.mapNotNullA { v ->
-                    if (delete(tableName, "$idColumnName=? AND $valueColumnName=?", arrayOf(k.asId(), v.asValue())) > 0) {
+                    if (delete(tableName, "$idColumnName=? AND $valueColumnName=?", arrayOf(k.keyAsString(), v.valueAsString())) > 0) {
                         k to v
                     } else {
                         null
@@ -233,3 +257,24 @@ class OneToManyAndroidRepo<Key, Value>(
         }
     }
 }
+
+fun <Key, Value> OneToManyAndroidRepo(
+    tableName: String,
+    keySerializer: KSerializer<Key>,
+    valueSerializer: KSerializer<Value>,
+    helper: SQLiteOpenHelper
+) = OneToManyAndroidRepo(
+    tableName,
+    { internalSerialFormat.encodeToString(keySerializer, this) },
+    { internalSerialFormat.encodeToString(valueSerializer, this) },
+    { internalSerialFormat.decodeFromString(keySerializer, this) },
+    { internalSerialFormat.decodeFromString(valueSerializer, this) },
+    helper
+)
+
+fun <Key, Value> KeyValuesAndroidRepo(
+    tableName: String,
+    keySerializer: KSerializer<Key>,
+    valueSerializer: KSerializer<Value>,
+    helper: SQLiteOpenHelper
+) = OneToManyAndroidRepo(tableName, keySerializer, valueSerializer, helper)

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

@@ -31,6 +31,9 @@ open class ExposedOneToManyKeyValueRepo<Key, Value>(
         transaction(database) {
             toAdd.keys.flatMap { k ->
                 toAdd[k] ?.mapNotNull { v ->
+                    if (select { keyColumn.eq(k).and(valueColumn.eq(v)) }.limit(1).count() > 0) {
+                        return@mapNotNull null
+                    }
                     insertIgnore {
                         it[keyColumn] = k
                         it[valueColumn] = v

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

@@ -86,6 +86,12 @@ class MapWriteOneToManyKeyValueRepo<Key, Value>(
     override suspend fun clear(k: Key) {
         map.remove(k) ?.also { _onDataCleared.emit(k) }
     }
+
+    override suspend fun clearWithValue(v: Value) {
+        map.forEach { (k, values) ->
+            if (values.remove(v)) _onValueRemoved.emit(k to v)
+        }
+    }
 }
 
 class MapOneToManyKeyValueRepo<Key, Value>(

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

@@ -67,6 +67,15 @@ class KtorWriteOneToManyKeyValueRepo<Key, Value> (
         Unit.serializer(),
     )
 
+    override suspend fun clearWithValue(v: Value) = unifiedRequester.unipost(
+        buildStandardUrl(
+            baseUrl,
+            clearWithValueRoute,
+        ),
+        BodyPair(valueSerializer, v),
+        Unit.serializer(),
+    )
+
     override suspend fun set(toSet: Map<Key, List<Value>>) = unifiedRequester.unipost(
         buildStandardUrl(
             baseUrl,
@@ -75,4 +84,4 @@ class KtorWriteOneToManyKeyValueRepo<Key, Value> (
         BodyPair(keyValueMapSerializer, toSet),
         Unit.serializer(),
     )
-}
+}

repos/ktor/common/src/commonMain/kotlin/dev/inmo/micro_utils/repos/ktor/common/one_to_many/OneToManyRoutes.kt

@@ -14,4 +14,5 @@ const val onDataClearedRoute = "onDataCleared"
 const val addRoute = "add"
 const val removeRoute = "remove"
 const val clearRoute = "clear"
-const val setRoute = "set"
+const val clearWithValueRoute = "clearWithValue"
+const val setRoute = "set"

repos/ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/repos/ktor/server/one_to_many/ConfigureOneToManyWriteKeyValueRepoRoutes.kt

@@ -72,6 +72,17 @@ fun <Key, Value> Route.configureOneToManyWriteKeyValueRepoRoutes(
         }
     }
 
+    post(clearWithValueRoute) {
+        unifiedRouter.apply {
+            val v = uniload(valueSerializer)
+
+            unianswer(
+                Unit.serializer(),
+                originalRepo.clearWithValue(v),
+            )
+        }
+    }
+
     post(setRoute) {
         unifiedRouter.apply {
             val obj = uniload(keyValueMapSerializer)

serialization/typed_serializer/src/commonMain/kotlin/dev/inmo/micro_utils/serialization/typed_serializer/TypedSerializer.kt

@@ -12,7 +12,7 @@ open class TypedSerializer<T : Any>(
 ) : KSerializer<T> {
     protected val serializers = presetSerializers.toMutableMap()
     @InternalSerializationApi
-    override open val descriptor: SerialDescriptor = buildSerialDescriptor(
+    open override val descriptor: SerialDescriptor = buildSerialDescriptor(
         "TextSourceSerializer",
         SerialKind.CONTEXTUAL
     ) {
@@ -21,7 +21,7 @@ open class TypedSerializer<T : Any>(
     }
 
     @InternalSerializationApi
-    override open fun deserialize(decoder: Decoder): T {
+    open override fun deserialize(decoder: Decoder): T {
         return decoder.decodeStructure(descriptor) {
             var type: String? = null
             lateinit var result: T
@@ -50,7 +50,7 @@ open class TypedSerializer<T : Any>(
     }
 
     @InternalSerializationApi
-    override open fun serialize(encoder: Encoder, value: T) {
+    open override fun serialize(encoder: Encoder, value: T) {
         encoder.encodeStructure(descriptor) {
             val valueSerializer = value::class.serializer()
             val type = serializers.keys.first { serializers[it] == valueSerializer }

settings.gradle

@@ -28,6 +28,9 @@ String[] includes = [
     ":serialization:encapsulator",
     ":serialization:typed_serializer",
 
+    ":fsm:common",
+    ":fsm:repos:common",
+
     ":dokka"
 ]