preparations for release

0.7.4

.github/workflows/build.yml

@@ -1,12 +0,0 @@
-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

.github/workflows/dokka_push.yml

@@ -11,6 +11,9 @@ jobs:
       - uses: actions/setup-java@v1
         with:
           java-version: 1.8
+      - name: Fix android 31.0.0 dx
+        continue-on-error: true
+        run: cd /usr/local/lib/android/sdk/build-tools/31.0.0/ && mv d8 dx && cd lib  && mv d8.jar dx.jar
       - name: Build
         run: ./gradlew dokkaHtml
       - name: Publish KDocs

.github/workflows/packages_push.yml

@@ -9,6 +9,9 @@ jobs:
       - uses: actions/setup-java@v1
         with:
           java-version: 1.8
+      - name: Fix android 31.0.0 dx
+        continue-on-error: true
+        run: cd /usr/local/lib/android/sdk/build-tools/31.0.0/ && mv d8 dx && cd lib  && mv d8.jar dx.jar
       - name: Rewrite version
         run: |
           branch="`echo "${{ github.ref }}" | grep -o "[^/]*$"`"
@@ -18,6 +21,7 @@ jobs:
       - name: Build
         run: ./gradlew build
       - name: Publish
+        continue-on-error: true
         run: ./gradlew --no-parallel publishAllPublicationsToGithubPackagesRepository -x signJsPublication -x signJvmPublication -x signKotlinMultiplatformPublication -x signAndroidDebugPublication -x signAndroidReleasePublication -x signKotlinMultiplatformPublication
         env:
           GITHUBPACKAGES_USER: ${{ github.actor }}

CHANGELOG.md

@@ -1,5 +1,124 @@
 # Changelog
 
+## 0.8.0
+
+* `Versions`:
+    * `Klock`: `2.4.6` -> `2.4.7`
+    * `Ktor`: `1.6.4` -> `1.6.5`
+    * `Exposed`: `0.35.3` -> `0.36.1`
+* `Common`:
+    * Type `Either` got its own serializer
+* `FSM`:
+    * `Common`:
+        * Full rework of FSM:
+            * Now it is more flexible for checking of handler opportunity to handle state
+            * Now machine and states managers are type-oriented
+            * `StateHandlerHolder` has been renamed to `CheckableHandlerHolder`
+        * Add opportunity for comfortable adding default state handler
+
+## 0.7.4
+
+* `Common`:
+    * New type `Either`
+* `Serialization`:
+    * `TypedSerializer`
+        * New factory fun which accept vararg pairs of type and its serializer
+* `Repos`:
+    * `Common` (`Android`):
+        * `AbstractMutableAndroidCRUDRepo` flows now will have extra buffer capacity instead of reply. It means that
+          android crud repo _WILL NOT_ send previous events to the 
+    * `Exposed`:
+        * New parameter `AbstractExposedWriteCRUDRepo#replyCacheInFlows`
+        * KeyValue realization `ExposedKeyValueRepo` properties `_onNewValue` and `_onValueRemoved` now are available in
+          inheritors
+* `Pagination`:
+    * `Common`:
+        * New types `getAllBy*` for current, next and custom paging
+
+## 0.7.3
+
+* `Versions`:
+    * `Exposed`: `0.35.2` -> `0.35.3`
+
+## 0.7.2
+
+* `Versions`:
+    * `Klock`: `2.4.5` -> `2.4.6`
+
+## 0.7.1
+
+* `Versions`:
+    * `Klock`: `2.4.3` -> `2.4.5`
+    * `Exposed`: `0.35.1` -> `0.35.2`
+* `Coroutines`:
+    * `Common`:
+        * New `Flow` - `AccumulatorFlow`
+* `FSM`:
+    * `Common`:
+        * `InMemoryStatesManager` has been replaced
+        * `StatesMachine` became an interface
+        * New manager `DefaultStatesManager` with `DefaultStatesManagerRepo` for abstraction of manager and storing of
+          data info
+
+## 0.7.0
+
+**THIS VERSION HAS MIGRATED FROM KOTLINX DATETIME TO KORLIBS KLOCK. CAREFUL**
+
+* `Versions`
+    * `kotlinx.datetime` -> `Klock`
+
+## 0.6.0 DO NOT RECOMMENDED
+
+**THIS VERSION HAS MIGRATED FROM KORLIBS KLOCK TO KOTLINX DATETIME. CAREFUL**
+**ALL DEPRECATION HAVE BEEN REMOVED**
+
+* `Versions`
+    * `Klock` -> `kotlinx.datetime`
+
+## 0.5.31
+
+* `Versions`:
+    * `Klock`: `2.4.2` -> `2.4.3`
+    * `Ktor`: `1.6.3` -> `1.6.4`
+
+## 0.5.30
+
+* `Versions`:
+    * `Serialization`: `1.2.2` -> `1.3.0`
+
+## 0.5.29
+
+* `Versions`:
+    * `Exposed`: `0.34.2` -> `0.35.1`
+
+## 0.5.28
+
+* `Versions`:
+    * `Kotlin`: `1.5.30` -> `1.5.31`
+    * `Klock`: `2.4.1` -> `2.4.2`
+
+## 0.5.27
+
+* `Versions`:
+    * `Exposed`: `0.34.1` -> `0.34.2`
+
+## 0.5.26
+
+* `Repos`:
+    * `InMemory`:
+        * `MapCRUDRepo`s and `MapKeyValueRepo`s got `protected` methods and properties instead of private
+
+## 0.5.25
+
+* `Versions`:
+    * `UUID`: `0.3.0` -> `0.3.1`
+* `Common`:
+    * New property `MPPFile#withoutSlashAtTheEnd`
+    * Extension `clamp` has been deprecated
+    * New extension `Iterable#diff`
+* `Serialization`:
+    * New operators `TypedSerializer#plusAssign` and `TypedSerializer#minusAssign`
+
 ## 0.5.24
 
 * `Versions`:

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

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

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

@@ -27,8 +27,8 @@ data class Diff<T> internal constructor(
 
 private inline fun <T> performChanges(
     potentialChanges: MutableList<Pair<IndexedValue<T>?, IndexedValue<T>?>>,
-    additionalsInOld: MutableList<T>,
-    additionalsInNew: MutableList<T>,
+    additionsInOld: MutableList<T>,
+    additionsInNew: MutableList<T>,
     changedList: MutableList<Pair<IndexedValue<T>, IndexedValue<T>>>,
     removedList: MutableList<IndexedValue<T>>,
     addedList: MutableList<IndexedValue<T>>,
@@ -52,20 +52,20 @@ private inline fun <T> performChanges(
                     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) }
+                        oldOne ?.let { additionsInOld.add(oldOne.value) }
                     }
                     if (newPotentials.size > 1) {
-                        newPotentials.last().first ?.value ?.let { additionalsInOld.add(it) }
+                        newPotentials.last().first ?.value ?.let { additionsInOld.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) }
+                        newOne ?.let { additionsInNew.add(newOne.value) }
                     }
                     if (newPotentials.size > 1) {
-                        newPotentials.last().second ?.value ?.let { additionalsInNew.add(it) }
+                        newPotentials.last().second ?.value ?.let { additionsInNew.add(it) }
                     }
                 }
             }
@@ -139,6 +139,10 @@ fun <T> Iterable<T>.calculateDiff(
 
     return Diff(removedObjects.toList(), changedObjects.toList(), addedObjects.toList())
 }
+inline fun <T> Iterable<T>.diff(
+    other: Iterable<T>,
+    strictComparison: Boolean = false
+): Diff<T> = calculateDiff(other, strictComparison)
 
 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)

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

@@ -0,0 +1,151 @@
+package dev.inmo.micro_utils.common
+
+import kotlinx.serialization.*
+import kotlinx.serialization.builtins.serializer
+import kotlinx.serialization.descriptors.*
+import kotlinx.serialization.encoding.*
+
+/**
+ * Realization of this interface will contains at least one not null - [t1] or [t2]
+ *
+ * @see EitherFirst
+ * @see EitherSecond
+ * @see Either.Companion.first
+ * @see Either.Companion.second
+ * @see Either.onFirst
+ * @see Either.onSecond
+ */
+@Serializable(EitherSerializer::class)
+sealed interface Either<T1, T2> {
+    val t1: T1?
+    val t2: T2?
+
+    companion object {
+        fun <T1, T2> serializer(
+            t1Serializer: KSerializer<T1>,
+            t2Serializer: KSerializer<T2>,
+        ): KSerializer<Either<T1, T2>> = EitherSerializer(t1Serializer, t2Serializer)
+    }
+}
+
+class EitherSerializer<T1, T2>(
+    t1Serializer: KSerializer<T1>,
+    t2Serializer: KSerializer<T2>,
+) : KSerializer<Either<T1, T2>> {
+    @ExperimentalSerializationApi
+    @InternalSerializationApi
+    override val descriptor: SerialDescriptor = buildSerialDescriptor(
+        "TypedSerializer",
+        SerialKind.CONTEXTUAL
+    ) {
+        element("type", String.serializer().descriptor)
+        element("value", ContextualSerializer(Either::class).descriptor)
+    }
+    private val t1EitherSerializer = EitherFirst.serializer(t1Serializer, t2Serializer)
+    private val t2EitherSerializer = EitherSecond.serializer(t1Serializer, t2Serializer)
+
+    @ExperimentalSerializationApi
+    @InternalSerializationApi
+    override fun deserialize(decoder: Decoder): Either<T1, T2> {
+        return decoder.decodeStructure(descriptor) {
+            var type: String? = null
+            lateinit var result: Either<T1, T2>
+            while (true) {
+                when (val index = decodeElementIndex(descriptor)) {
+                    0 -> type = decodeStringElement(descriptor, 0)
+                    1 -> {
+                        result = when (type) {
+                            "t1" -> decodeSerializableElement(
+                                descriptor,
+                                1,
+                                t1EitherSerializer
+                            )
+                            "t2" -> decodeSerializableElement(
+                                descriptor,
+                                1,
+                                t2EitherSerializer
+                            )
+                            else -> error("Unknown type of either: $type")
+                        }
+                    }
+                    CompositeDecoder.DECODE_DONE -> break
+                    else -> error("Unexpected index: $index")
+                }
+            }
+            result
+        }
+    }
+
+
+    @ExperimentalSerializationApi
+    @InternalSerializationApi
+    override fun serialize(encoder: Encoder, value: Either<T1, T2>) {
+        encoder.encodeStructure(descriptor) {
+            when (value) {
+                is EitherFirst -> {
+                    encodeStringElement(descriptor, 0, "t1")
+                    encodeSerializableElement(descriptor, 1, t1EitherSerializer, value)
+                }
+                is EitherSecond -> {
+                    encodeStringElement(descriptor, 0, "t2")
+                    encodeSerializableElement(descriptor, 1, t2EitherSerializer, value)
+                }
+            }
+        }
+    }
+}
+
+/**
+ * This type [Either] will always have not nullable [t1]
+ */
+@Serializable
+data class EitherFirst<T1, T2>(
+    override val t1: T1
+) : Either<T1, T2> {
+    override val t2: T2?
+        get() = null
+}
+
+/**
+ * This type [Either] will always have not nullable [t2]
+ */
+@Serializable
+data class EitherSecond<T1, T2>(
+    override val t2: T2
+) : Either<T1, T2> {
+    override val t1: T1?
+        get() = null
+}
+
+/**
+ * @return New instance of [EitherFirst]
+ */
+inline fun <T1, T2> Either.Companion.first(t1: T1): Either<T1, T2> = EitherFirst(t1)
+/**
+ * @return New instance of [EitherSecond]
+ */
+inline fun <T1, T2> Either.Companion.second(t2: T2): Either<T1, T2> = EitherSecond(t2)
+
+/**
+ * Will call [block] in case when [Either.t1] of [this] is not null
+ */
+inline fun <T1, T2, E : Either<T1, T2>> E.onFirst(crossinline block: (T1) -> Unit): E {
+    val t1 = t1
+    t1 ?.let(block)
+    return this
+}
+
+/**
+ * Will call [block] in case when [Either.t2] of [this] is not null
+ */
+inline fun <T1, T2, E : Either<T1, T2>> E.onSecond(crossinline block: (T2) -> Unit): E {
+    val t2 = t2
+    t2 ?.let(block)
+    return this
+}
+
+inline fun <reified T1, reified T2> Any.either() = when (this) {
+    is T1 -> Either.first<T1, T2>(this)
+    is T2 -> Either.second<T1, T2>(this)
+    else -> error("Incorrect type of either argument $this")
+}

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

@@ -7,7 +7,7 @@ import kotlin.jvm.JvmInline
 @JvmInline
 value class FileName(val string: String) {
     val name: String
-        get() = string.takeLastWhile { it != '/' }
+        get() = withoutSlashAtTheEnd.takeLastWhile { it != '/' }
     val extension: String
         get() = name.takeLastWhile { it != '.' }
     val nameWithoutExtension: String
@@ -17,6 +17,8 @@ value class FileName(val string: String) {
                 filename.substring(0, it)
             } ?: filename
         }
+    val withoutSlashAtTheEnd: String
+        get() = string.dropLastWhile { it == '/' }
     override fun toString(): String = string
 }
 

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

@@ -6,6 +6,9 @@ import org.w3c.files.File
 import org.w3c.files.FileReader
 import kotlin.js.Promise
 
+/**
+ * @suppress
+ */
 actual typealias MPPFile = File
 
 fun MPPFile.readBytesPromise() = Promise<ByteArray> { success, failure ->
@@ -23,10 +26,19 @@ fun MPPFile.readBytesPromise() = Promise<ByteArray> { success, failure ->
 
 private suspend fun MPPFile.dirtyReadBytes(): ByteArray = readBytesPromise().await()
 
+/**
+ * @suppress
+ */
 actual val MPPFile.filename: FileName
     get() = FileName(name)
+/**
+ * @suppress
+ */
 actual val MPPFile.filesize: Long
     get() = size.toLong()
+/**
+ * @suppress
+ */
 @Warning("That is not optimized version of bytes allocator. Use asyncBytesAllocator everywhere you can")
 actual val MPPFile.bytesAllocator: SuspendByteArrayAllocator
     get() = ::dirtyReadBytes

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

@@ -4,12 +4,24 @@ import dev.inmo.micro_utils.coroutines.doInIO
 import dev.inmo.micro_utils.coroutines.doOutsideOfCoroutine
 import java.io.File
 
+/**
+ * @suppress
+ */
 actual typealias MPPFile = File
 
+/**
+ * @suppress
+ */
 actual val MPPFile.filename: FileName
     get() = FileName(name)
+/**
+ * @suppress
+ */
 actual val MPPFile.filesize: Long
     get() = length()
+/**
+ * @suppress
+ */
 actual val MPPFile.bytesAllocator: SuspendByteArrayAllocator
     get() = {
         doInIO {

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

@@ -0,0 +1,94 @@
+package dev.inmo.micro_utils.coroutines
+
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.channels.BufferOverflow
+import kotlinx.coroutines.channels.Channel
+import kotlinx.coroutines.flow.*
+import kotlinx.coroutines.sync.Mutex
+import kotlinx.coroutines.sync.withLock
+
+private sealed interface AccumulatorFlowStep
+private data class DataRetrievedAccumulatorFlowStep(val data: Any) : AccumulatorFlowStep
+private data class SubscribeAccumulatorFlowStep(val channel: Channel<Any>) : AccumulatorFlowStep
+private data class UnsubscribeAccumulatorFlowStep(val channel: Channel<Any>) : AccumulatorFlowStep
+
+/**
+ * This [Flow] will have behaviour very similar to [SharedFlow], but there are several differences:
+ *
+ * * All unhandled by [FlowCollector] data will not be removed from [AccumulatorFlow] and will be sent to new
+ * [FlowCollector]s until anybody will handle it
+ * * Here there are an [activeData] where data [T] will be stored until somebody will handle it
+ */
+class AccumulatorFlow<T>(
+    sourceDataFlow: Flow<T>,
+    scope: CoroutineScope
+) : AbstractFlow<T>() {
+    private val subscope = scope.LinkedSupervisorScope()
+    private val activeData = ArrayDeque<T>()
+    private val dataMutex = Mutex()
+    private val channelsForBroadcast = mutableListOf<Channel<Any>>()
+    private val channelsMutex = Mutex()
+    private val steps = subscope.actor<AccumulatorFlowStep> { step ->
+        when (step) {
+            is DataRetrievedAccumulatorFlowStep -> {
+                if (activeData.first() === step.data) {
+                    dataMutex.withLock {
+                        activeData.removeFirst()
+                    }
+                }
+            }
+            is SubscribeAccumulatorFlowStep -> channelsMutex.withLock {
+                channelsForBroadcast.add(step.channel)
+                dataMutex.withLock {
+                    val dataToSend = activeData.toList()
+                    safelyWithoutExceptions {
+                        dataToSend.forEach { step.channel.send(it as Any) }
+                    }
+                }
+            }
+            is UnsubscribeAccumulatorFlowStep -> channelsMutex.withLock {
+                channelsForBroadcast.remove(step.channel)
+            }
+        }
+    }
+    private val subscriptionJob = sourceDataFlow.subscribeSafelyWithoutExceptions(subscope) {
+        dataMutex.withLock {
+            activeData.addLast(it)
+        }
+        channelsMutex.withLock {
+            channelsForBroadcast.forEach { channel ->
+                safelyWithResult {
+                    channel.send(it as Any)
+                }
+            }
+        }
+    }
+
+    override suspend fun collectSafely(collector: FlowCollector<T>) {
+        val channel = Channel<Any>(Channel.UNLIMITED, BufferOverflow.SUSPEND)
+        steps.send(SubscribeAccumulatorFlowStep(channel))
+        for (data in channel) {
+            try {
+                collector.emit(data as T)
+                steps.send(DataRetrievedAccumulatorFlowStep(data))
+            } finally {
+                channel.cancel()
+                steps.send(UnsubscribeAccumulatorFlowStep(channel))
+            }
+        }
+    }
+}
+
+/**
+ * Creates [AccumulatorFlow] using [this] as base [Flow]
+ */
+fun <T> Flow<T>.accumulatorFlow(scope: CoroutineScope): Flow<T> {
+    return AccumulatorFlow(this, scope)
+}
+
+/**
+ * Creates [AccumulatorFlow] using [this] with [receiveAsFlow] to get
+ */
+fun <T> Channel<T>.accumulatorFlow(scope: CoroutineScope): Flow<T> {
+    return receiveAsFlow().accumulatorFlow(scope)
+}

crypto/src/jsMain/kotlin/dev/inmo/micro_utils/crypto/MD5Realization.kt

@@ -1,3 +1,6 @@
 package dev.inmo.micro_utils.crypto
 
+/**
+ * @suppress
+ */
 actual fun SourceBytes.md5(): MD5 = CryptoJS.MD5(decodeToString())

crypto/src/jvmMain/kotlin/dev/inmo/micro_utils/crypto/MD5Realization.kt

@@ -3,6 +3,9 @@ package dev.inmo.micro_utils.crypto
 import java.math.BigInteger
 import java.security.MessageDigest
 
+/**
+ * @suppress
+ */
 actual fun SourceBytes.md5(): MD5 = BigInteger(
     1,
     MessageDigest.getInstance("MD5").digest(this)

dokka/build.gradle

@@ -13,10 +13,10 @@ repositories {
 
 kotlin {
     jvm()
-    js(IR) {
-        browser()
-        nodejs()
-    }
+//    js(IR) {
+//        browser()
+//        nodejs()
+//    }
     android {}
 
     sourceSets {
@@ -29,7 +29,7 @@ kotlin {
                         it != project
                         && it.hasProperty("kotlin")
                         && it.kotlin.sourceSets.any { it.name.contains("commonMain") }
-                        && it.kotlin.sourceSets.any { it.name.contains("jsMain") }
+//                        && it.kotlin.sourceSets.any { it.name.contains("jsMain") }
                         && it.kotlin.sourceSets.any { it.name.contains("jvmMain") }
                         && it.kotlin.sourceSets.any { it.name.contains("androidMain") }
                     ) {
@@ -38,22 +38,22 @@ kotlin {
                 }
             }
         }
-        jsMain {
-            dependencies {
-                implementation kotlin('stdlib')
+//        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
-                    }
-                }
-            }
-        }
+//                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')
@@ -116,9 +116,9 @@ tasks.dokkaHtml {
             sourceRoots.setFrom(findSourcesWithName("commonMain"))
         }
 
-        named("jsMain") {
-            sourceRoots.setFrom(findSourcesWithName("jsMain", "commonMain"))
-        }
+//        named("jsMain") {
+//            sourceRoots.setFrom(findSourcesWithName("jsMain", "commonMain"))
+//        }
 
         named("jvmMain") {
             sourceRoots.setFrom(findSourcesWithName("jvmMain", "commonMain"))

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

@@ -0,0 +1,81 @@
+package dev.inmo.micro_utils.fsm.common
+
+import kotlin.reflect.KClass
+
+/**
+ * Define checkable holder which can be used to precheck that this handler may handle incoming [State]
+ */
+interface CheckableHandlerHolder<I : State, O : State> : StatesHandler<I, O> {
+    suspend fun checkHandleable(state: O): Boolean
+}
+
+/**
+ * Default realization of [StatesHandler]. It will incapsulate checking of [State] type in [checkHandleable] and class
+ * casting in [handleState]
+ */
+class CustomizableHandlerHolder<I : O, O : State>(
+    private val delegateTo: StatesHandler<I, O>,
+    private val filter: suspend (state: O) -> Boolean
+) : CheckableHandlerHolder<I, O> {
+    /**
+     * Checks that [state] can be handled by [delegateTo]. Under the hood it will check exact equality of [state]
+     * [KClass] and use [KClass.isInstance] of [inputKlass] if [strict] == false
+     */
+    override suspend fun checkHandleable(state: O) = filter(state)
+
+    /**
+     * Calls [delegateTo] method [StatesHandler.handleState] with [state] casted to [I]. Use [checkHandleable]
+     * to be sure that this [StatesHandlerHolder] will be able to handle [state]
+     */
+    override suspend fun StatesMachine<in O>.handleState(state: I): O? {
+        return delegateTo.run { handleState(state) }
+    }
+}
+
+fun <I : O, O : State> CheckableHandlerHolder(
+    inputKlass: KClass<I>,
+    strict: Boolean = false,
+    delegateTo: StatesHandler<I, O>
+) = CustomizableHandlerHolder(
+    StatesHandler<O, O> {
+        delegateTo.run { handleState(it as I) }
+    },
+    if (strict) {
+        { it::class == inputKlass }
+    } else {
+        { inputKlass.isInstance(it) }
+    }
+)
+
+@Deprecated("Renamed", ReplaceWith("CheckableHandlerHolder"))
+fun <I : O, O : State> StateHandlerHolder(
+    inputKlass: KClass<I>,
+    strict: Boolean = false,
+    delegateTo: StatesHandler<I, O>
+) = CheckableHandlerHolder(inputKlass, strict, delegateTo)
+
+inline fun <reified I : O, O : State> CheckableHandlerHolder(
+    strict: Boolean = false,
+    delegateTo: StatesHandler<I, O>
+) = CheckableHandlerHolder(I::class, strict, delegateTo)
+
+@Deprecated("Renamed", ReplaceWith("CheckableHandlerHolder"))
+inline fun <reified I : O, O : State> StateHandlerHolder(
+    strict: Boolean = false,
+    delegateTo: StatesHandler<I, O>
+) = CheckableHandlerHolder(strict, delegateTo)
+
+inline fun <reified I : O, O: State> StatesHandler<I, O>.holder(
+    strict: Boolean = true
+) = CheckableHandlerHolder<I, O>(
+    I::class,
+    strict,
+    this
+)
+
+inline fun <I : O, O: State> StatesHandler<I, O>.holder(
+    noinline filter: suspend (state: State) -> Boolean
+) = CustomizableHandlerHolder<O, O>(
+    { this@holder.run { handleState(it as I) } },
+    filter
+)

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

@@ -1,15 +0,0 @@
-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

@@ -1,5 +1,12 @@
 package dev.inmo.micro_utils.fsm.common
 
-fun interface StatesHandler<I : State> {
-    suspend fun StatesMachine.handleState(state: I): State?
+/**
+ * Default realization of states handler
+ */
+fun interface StatesHandler<I : State, O: State> {
+    /**
+     * Main handling of [state]. In case when this [state] leads to another [State] and [handleState] returns not null
+     * [State] it is assumed that chain is not completed.
+     */
+    suspend fun StatesMachine<in O>.handleState(state: I): O?
 }

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

@@ -1,26 +1,66 @@
 package dev.inmo.micro_utils.fsm.common
 
-import dev.inmo.micro_utils.coroutines.*
+import dev.inmo.micro_utils.coroutines.launchSafelyWithoutExceptions
+import dev.inmo.micro_utils.coroutines.subscribeSafelyWithoutExceptions
 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)
+/**
+ * Default [StatesMachine] may [startChain] and use inside logic for handling [State]s. By default you may use
+ * [DefaultStatesMachine] or build it with [dev.inmo.micro_utils.fsm.common.dsl.buildFSM]. Implementers MUST NOT start
+ * handling until [start] method will be called
+ */
+interface StatesMachine<T : State> : StatesHandler<T, T> {
+    suspend fun launchStateHandling(
+        state: T,
+        handlers: List<CustomizableHandlerHolder<in T, T>>
+    ): T? {
+        return handlers.firstOrNull { it.checkHandleable(state) } ?.run {
+            handleState(state)
+        }
+    }
+
+    /**
+     * Starts handling of [State]s
+     */
+    fun start(scope: CoroutineScope): Job
+
+    /**
+     * Start chain of [State]s witn [state]
+     */
+    suspend fun startChain(state: T)
+
+    companion object {
+        /**
+         * Creates [DefaultStatesMachine]
+         */
+        operator fun <T: State> invoke(
+            statesManager: StatesManager<T>,
+            handlers: List<CustomizableHandlerHolder<in T, T>>
+        ) = DefaultStatesMachine(statesManager, handlers)
     }
 }
 
-class StatesMachine (
-    private val statesManager: StatesManager,
-    private val handlers: List<StateHandlerHolder<*>>
-) : StatesHandler<State> {
-    override suspend fun StatesMachine.handleState(state: State): State? = launchStateHandling(state, handlers)
+/**
+ * Default realization of [StatesMachine]. It uses [statesManager] for incapsulation of [State]s storing and contexts
+ * resolving, and uses [launchStateHandling] for [State] handling
+ */
+class DefaultStatesMachine <T: State>(
+    private val statesManager: StatesManager<T>,
+    private val handlers: List<CustomizableHandlerHolder<in T, T>>
+) : StatesMachine<T> {
+    /**
+     * Will call [launchStateHandling] for state handling
+     */
+    override suspend fun StatesMachine<in T>.handleState(state: T): T? = launchStateHandling(state, handlers)
 
-    fun start(scope: CoroutineScope): Job = scope.launchSafelyWithoutExceptions {
-        val statePerformer: suspend (State) -> Unit = { state: State ->
+    /**
+     * Launch handling of states. On [statesManager] [StatesManager.onStartChain],
+     * [statesManager] [StatesManager.onChainStateUpdated] will be called lambda with performing of state. If
+     * [launchStateHandling] will returns some [State] then [statesManager] [StatesManager.update] will be used, otherwise
+     * [StatesManager.endChain].
+     */
+    override fun start(scope: CoroutineScope): Job = scope.launchSafelyWithoutExceptions {
+        val statePerformer: suspend (T) -> Unit = { state: T ->
             val newState = launchStateHandling(state, handlers)
             if (newState != null) {
                 statesManager.update(state, newState)
@@ -40,7 +80,10 @@ class StatesMachine (
         }
     }
 
-    suspend fun startChain(state: State) {
+    /**
+     * Just calls [StatesManager.startChain] of [statesManager]
+     */
+    override suspend fun startChain(state: T) {
         statesManager.startChain(state)
     }
 }

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

@@ -1,92 +1,30 @@
 package dev.inmo.micro_utils.fsm.common
 
-import kotlinx.coroutines.flow.*
-import kotlinx.coroutines.sync.Mutex
-import kotlinx.coroutines.sync.withLock
+import kotlinx.coroutines.flow.Flow
 
-interface StatesManager {
-    val onChainStateUpdated: Flow<Pair<State, State>>
-    val onStartChain: Flow<State>
-    val onEndChain: Flow<State>
+interface StatesManager<T : State> {
+    val onChainStateUpdated: Flow<Pair<T, T>>
+    val onStartChain: Flow<T>
+    val onEndChain: Flow<T>
 
 
     /**
      * Must set current set using [State.context]
      */
-    suspend fun update(old: State, new: State)
+    suspend fun update(old: T, new: T)
 
     /**
      * 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)
+    suspend fun startChain(state: T)
 
     /**
      * 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 endChain(state: T)
 
-    suspend fun getActiveStates(): List<State>
+    suspend fun getActiveStates(): List<T>
 }
 
-/**
- * @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

@@ -1,35 +1,51 @@
 package dev.inmo.micro_utils.fsm.common.dsl
 
 import dev.inmo.micro_utils.fsm.common.*
+import dev.inmo.micro_utils.fsm.common.managers.DefaultStatesManager
+import dev.inmo.micro_utils.fsm.common.managers.InMemoryDefaultStatesManagerRepo
 import kotlin.reflect.KClass
 
-class FSMBuilder(
-    var statesManager: StatesManager = InMemoryStatesManager()
+class FSMBuilder<T : State>(
+    var statesManager: StatesManager<T> = DefaultStatesManager(InMemoryDefaultStatesManagerRepo()),
+    var defaultStateHandler: StatesHandler<T, T>? = StatesHandler { null }
 ) {
-    private var states = mutableListOf<StateHandlerHolder<*>>()
+    private var states = mutableListOf<CustomizableHandlerHolder<T, T>>()
 
-    fun <I : State> add(kClass: KClass<I>, handler: StatesHandler<I>) {
-        states.add(StateHandlerHolder(kClass, false, handler))
+    fun <I : T> add(kClass: KClass<I>, handler: StatesHandler<I, T>) {
+        states.add(CheckableHandlerHolder(kClass, false, handler))
     }
 
-    fun <I : State> addStrict(kClass: KClass<I>, handler: StatesHandler<I>) {
-        states.add(StateHandlerHolder(kClass, true, handler))
+    fun <I : T> add(filter: suspend (state: State) -> Boolean, handler: StatesHandler<I, T>) {
+        states.add(handler.holder(filter))
+    }
+
+    fun <I : T> addStrict(kClass: KClass<I>, handler: StatesHandler<I, T>) {
+        states.add(CheckableHandlerHolder(kClass, true, handler))
+    }
+
+    inline fun <reified I : T> onStateOrSubstate(handler: StatesHandler<I, T>) {
+        add(I::class, handler)
+    }
+
+    inline fun <reified I : T> strictlyOn(handler: StatesHandler<I, T>) {
+        addStrict(I::class, handler)
+    }
+
+    inline fun <reified I : T> doWhen(
+        noinline filter: suspend (state: State) -> Boolean,
+        handler: StatesHandler<I, T>
+    ) {
+        add(filter, handler)
     }
 
     fun build() = StatesMachine(
         statesManager,
-        states.toList()
+        states.toList().let { list ->
+            defaultStateHandler ?.let { list + it.holder { true } } ?: list
+        }
     )
 }
 
-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()
+fun <T : State> buildFSM(
+    block: FSMBuilder<T>.() -> Unit
+): StatesMachine<T> = FSMBuilder<T>().apply(block).build()

fsm/common/src/commonMain/kotlin/dev/inmo/micro_utils/fsm/common/managers/DefaultStatesManager.kt

@@ -0,0 +1,101 @@
+package dev.inmo.micro_utils.fsm.common.managers
+
+import dev.inmo.micro_utils.fsm.common.State
+import dev.inmo.micro_utils.fsm.common.StatesManager
+import kotlinx.coroutines.flow.*
+import kotlinx.coroutines.sync.Mutex
+import kotlinx.coroutines.sync.withLock
+
+/**
+ * Implement this repo if you want to use some custom repo for [DefaultStatesManager]
+ */
+interface DefaultStatesManagerRepo<T : State> {
+    /**
+     * Must save [state] as current state of chain with [State.context] of [state]
+     */
+    suspend fun set(state: T)
+    /**
+     * Remove exactly [state]. In case if internally [State.context] is busy with different [State], that [State] should
+     * NOT be removed
+     */
+    suspend fun removeState(state: T)
+    /**
+     * @return Current list of available and saved states
+     */
+    suspend fun getStates(): List<T>
+
+    /**
+     * @return Current state by [context]
+     */
+    suspend fun getContextState(context: Any): T?
+
+    /**
+     * @return Current state by [context]
+     */
+    suspend fun contains(context: Any): Boolean = getContextState(context) != null
+}
+
+/**
+ * @param repo This repo will be used as repository for storing states. All operations with this repo will happen BEFORE
+ * any event will be sent to [onChainStateUpdated], [onStartChain] or [onEndChain]. By default will be used
+ * [InMemoryDefaultStatesManagerRepo] or you may create custom [DefaultStatesManagerRepo] and pass as [repo] parameter
+ * @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 DefaultStatesManager<T : State>(
+    private val repo: DefaultStatesManagerRepo<T> = InMemoryDefaultStatesManagerRepo(),
+    private val onContextsConflictResolver: suspend (old: T, new: T, currentNew: T) -> Boolean = { _, _, _ -> true }
+) : StatesManager<T> {
+    private val _onChainStateUpdated = MutableSharedFlow<Pair<T, T>>(0)
+    override val onChainStateUpdated: Flow<Pair<T, T>> = _onChainStateUpdated.asSharedFlow()
+    private val _onStartChain = MutableSharedFlow<T>(0)
+    override val onStartChain: Flow<T> = _onStartChain.asSharedFlow()
+    private val _onEndChain = MutableSharedFlow<T>(0)
+    override val onEndChain: Flow<T> = _onEndChain.asSharedFlow()
+
+    private val mapMutex = Mutex()
+
+    override suspend fun update(old: T, new: T) = mapMutex.withLock {
+        val stateByOldContext: T? = repo.getContextState(old.context)
+        when {
+            stateByOldContext != old -> return@withLock
+            stateByOldContext == null || old.context == new.context -> {
+                repo.set(new)
+                _onChainStateUpdated.emit(old to new)
+            }
+            else -> {
+                val stateOnNewOneContext = repo.getContextState(new.context)
+                if (stateOnNewOneContext == null || onContextsConflictResolver(old, new, stateOnNewOneContext)) {
+                    stateOnNewOneContext ?.let { endChainWithoutLock(it) }
+                    repo.removeState(old)
+                    repo.set(new)
+                    _onChainStateUpdated.emit(old to new)
+                }
+            }
+        }
+    }
+
+    override suspend fun startChain(state: T) = mapMutex.withLock {
+        if (!repo.contains(state.context)) {
+            repo.set(state)
+            _onStartChain.emit(state)
+        }
+    }
+
+    private suspend fun endChainWithoutLock(state: T) {
+        if (repo.getContextState(state.context) == state) {
+            repo.removeState(state)
+            _onEndChain.emit(state)
+        }
+    }
+
+    override suspend fun endChain(state: T) {
+        mapMutex.withLock {
+            endChainWithoutLock(state)
+        }
+    }
+
+    override suspend fun getActiveStates(): List<T> = repo.getStates()
+
+}

fsm/common/src/commonMain/kotlin/dev/inmo/micro_utils/fsm/common/managers/InMemoryDefaultStatesManagerRepo.kt

@@ -0,0 +1,25 @@
+package dev.inmo.micro_utils.fsm.common.managers
+
+import dev.inmo.micro_utils.fsm.common.State
+
+/**
+ * Simple [DefaultStatesManagerRepo] for [DefaultStatesManager] which will store data in [map] and use primitive
+ * functionality
+ */
+class InMemoryDefaultStatesManagerRepo<T : State>(
+    private val map: MutableMap<Any, T> = mutableMapOf()
+) : DefaultStatesManagerRepo<T> {
+    override suspend fun set(state: T) {
+        map[state.context] = state
+    }
+
+    override suspend fun removeState(state: T) {
+        map.remove(state.context)
+    }
+
+    override suspend fun getStates(): List<T> = map.values.toList()
+
+    override suspend fun getContextState(context: Any): T? = map[context]
+
+    override suspend fun contains(context: Any): Boolean = map.contains(context)
+}

fsm/common/src/commonMain/kotlin/dev/inmo/micro_utils/fsm/common/managers/InMemoryStatesManager.kt

@@ -0,0 +1,16 @@
+package dev.inmo.micro_utils.fsm.common.managers
+
+import dev.inmo.micro_utils.fsm.common.State
+import kotlinx.coroutines.flow.*
+
+/**
+ * Creates [DefaultStatesManager] with [InMemoryDefaultStatesManagerRepo]
+ *
+ * @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
+ */
+@Deprecated("Use DefaultStatesManager instead", ReplaceWith("DefaultStatesManager"))
+fun <T: State> InMemoryStatesManager(
+    onContextsConflictResolver: suspend (old: T, new: T, currentNew: T) -> Boolean = { _, _, _ -> true }
+) = DefaultStatesManager(onContextsConflictResolver = onContextsConflictResolver)

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

@@ -1,6 +1,7 @@
 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 dev.inmo.micro_utils.fsm.common.managers.DefaultStatesManager
+import dev.inmo.micro_utils.fsm.common.managers.InMemoryStatesManager
 import kotlinx.coroutines.*
 
 sealed interface TrafficLightState : State {
@@ -25,9 +26,9 @@ class PlayableMain {
                 }
             }
 
-            val statesManager = InMemoryStatesManager()
+            val statesManager = DefaultStatesManager<TrafficLightState>()
 
-            val machine = buildFSM {
+            val machine = buildFSM<TrafficLightState> {
                 strictlyOn<GreenCommon> {
                     delay(1000L)
                     YellowCommon(it.context).also(::println)

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

@@ -0,0 +1,25 @@
+package dev.inmo.micro_utils.fsm.repos.common
+
+import dev.inmo.micro_utils.fsm.common.State
+import dev.inmo.micro_utils.fsm.common.managers.DefaultStatesManagerRepo
+import dev.inmo.micro_utils.repos.*
+import dev.inmo.micro_utils.repos.pagination.getAll
+
+class KeyValueBasedDefaultStatesManagerRepo<T : State>(
+    private val keyValueRepo: KeyValueRepo<Any, T>
+) : DefaultStatesManagerRepo<T> {
+    override suspend fun set(state: T) {
+        keyValueRepo.set(state.context, state)
+    }
+
+    override suspend fun removeState(state: T) {
+        if (keyValueRepo.get(state.context) == state) {
+            keyValueRepo.unset(state.context)
+        }
+    }
+
+    override suspend fun getStates(): List<T> = keyValueRepo.getAll { keys(it) }.map { it.second }
+    override suspend fun getContextState(context: Any): T? = keyValueRepo.get(context)
+
+    override suspend fun contains(context: Any): Boolean = keyValueRepo.contains(context)
+}

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

@@ -1,83 +0,0 @@
-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
-    )
-)

gradle.properties

@@ -7,18 +7,18 @@ android.useAndroidX=true
 android.enableJetifier=true
 org.gradle.jvmargs=-Xmx2g
 
-kotlin_version=1.5.30
+kotlin_version=1.5.31
 kotlin_coroutines_version=1.5.2
-kotlin_serialisation_core_version=1.2.2
-kotlin_exposed_version=0.34.1
+kotlin_serialisation_core_version=1.3.0
+kotlin_exposed_version=0.36.1
 
-ktor_version=1.6.3
+ktor_version=1.6.5
 
-klockVersion=2.4.1
+klockVersion=2.4.7
 
 github_release_plugin_version=2.2.12
 
-uuidVersion=0.3.0
+uuidVersion=0.3.1
 
 # ANDROID
 
@@ -27,8 +27,8 @@ androidx_recycler_version=1.2.1
 appcompat_version=1.3.1
 
 android_minSdkVersion=19
-android_compileSdkVersion=30
-android_buildToolsVersion=30.0.3
+android_compileSdkVersion=31
+android_buildToolsVersion=31.0.0
 dexcount_version=3.0.0
 junit_version=4.12
 test_ext_junit_version=1.1.2
@@ -40,10 +40,10 @@ crypto_js_version=4.1.1
 
 # Dokka
 
-dokka_version=1.5.0
+dokka_version=1.5.31
 
 # Project data
 
 group=dev.inmo
-version=0.5.24
-android_code_version=65
+version=0.8.0
+android_code_version=80

language_codes/src/commonMain/kotlin/dev/inmo/micro_utils/language_codes/LanguageCodes.kt

@@ -1,3 +1,5 @@
+@file:Suppress("SERIALIZER_TYPE_INCOMPATIBLE")
+
 package dev.inmo.micro_utils.language_codes
 
 import kotlinx.serialization.Serializable

mime_types/src/commonMain/kotlin/dev/inmo/micro_utils/mime_types/KnownMimeTypes.kt

@@ -1,3 +1,5 @@
+@file:Suppress("SERIALIZER_TYPE_INCOMPATIBLE")
+
 package dev.inmo.micro_utils.mime_types
 
 import kotlinx.serialization.Serializable

mppAndroidProject.gradle

@@ -24,3 +24,9 @@ kotlin {
 }
 
 apply from: "$defaultAndroidSettingsPresetPath"
+
+java {
+    toolchain {
+        languageVersion = JavaLanguageVersion.of(8)
+    }
+}

mppJavaProject.gradle

@@ -26,3 +26,9 @@ kotlin {
         }
     }
 }
+
+java {
+    toolchain {
+        languageVersion = JavaLanguageVersion.of(8)
+    }
+}

mppProjectWithSerialization.gradle

@@ -48,3 +48,9 @@ kotlin {
 }
 
 apply from: "$defaultAndroidSettingsPresetPath"
+
+java {
+    toolchain {
+        languageVersion = JavaLanguageVersion.of(8)
+    }
+}

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

@@ -16,6 +16,16 @@ suspend fun <T> getAll(
     return results.toList()
 }
 
+suspend fun <T, R> R.getAllBy(
+    initialPagination: Pagination = FirstPagePagination(),
+    paginationMapper: R.(PaginationResult<T>) -> Pagination?,
+    block: suspend R.(Pagination) -> PaginationResult<T>
+): List<T> = getAll(
+    initialPagination,
+    { paginationMapper(it) },
+    { block(it) }
+)
+
 suspend fun <T> getAllWithNextPaging(
     initialPagination: Pagination = FirstPagePagination(),
     block: suspend (Pagination) -> PaginationResult<T>
@@ -25,6 +35,14 @@ suspend fun <T> getAllWithNextPaging(
     block
 )
 
+suspend fun <T, R> R.getAllByWithNextPaging(
+    initialPagination: Pagination = FirstPagePagination(),
+    block: suspend R.(Pagination) -> PaginationResult<T>
+): List<T> = getAllWithNextPaging(
+    initialPagination,
+    { block(it) }
+)
+
 suspend fun <T> getAllWithCurrentPaging(
     initialPagination: Pagination = FirstPagePagination(),
     block: suspend (Pagination) -> PaginationResult<T>
@@ -33,3 +51,11 @@ suspend fun <T> getAllWithCurrentPaging(
     { it.currentPageIfNotEmpty() },
     block
 )
+
+suspend fun <T, R> R.getAllByWithCurrentPaging(
+    initialPagination: Pagination = FirstPagePagination(),
+    block: suspend R.(Pagination) -> PaginationResult<T>
+): List<T> = getAllWithCurrentPaging(
+    initialPagination,
+    { block(it) }
+)

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

@@ -6,13 +6,15 @@ import dev.inmo.micro_utils.repos.*
 import kotlinx.coroutines.flow.*
 
 abstract class AbstractMutableAndroidCRUDRepo<ObjectType, IdType, InputValueType>(
-    helper: StandardSQLHelper
+    helper: StandardSQLHelper,
+    replyInFlows: Int = 0,
+    extraBufferCapacityInFlows: Int = 64
 ) : WriteStandardCRUDRepo<ObjectType, IdType, InputValueType>,
     AbstractAndroidCRUDRepo<ObjectType, IdType>(helper),
     StandardCRUDRepo<ObjectType, IdType, InputValueType> {
-    protected val newObjectsChannel = MutableSharedFlow<ObjectType>(64)
-    protected val updateObjectsChannel = MutableSharedFlow<ObjectType>(64)
-    protected val deleteObjectsIdsChannel = MutableSharedFlow<IdType>(64)
+    protected val newObjectsChannel = MutableSharedFlow<ObjectType>(replyInFlows, extraBufferCapacityInFlows)
+    protected val updateObjectsChannel = MutableSharedFlow<ObjectType>(replyInFlows, extraBufferCapacityInFlows)
+    protected val deleteObjectsIdsChannel = MutableSharedFlow<IdType>(replyInFlows, extraBufferCapacityInFlows)
     override val newObjectsFlow: Flow<ObjectType> = newObjectsChannel.asSharedFlow()
     override val updatedObjectsFlow: Flow<ObjectType> = updateObjectsChannel.asSharedFlow()
     override val deletedObjectsIdsFlow: Flow<IdType> = deleteObjectsIdsChannel.asSharedFlow()
@@ -102,4 +104,4 @@ abstract class AbstractMutableAndroidCRUDRepo<ObjectType, IdType, InputValueType
     }
 
     override suspend fun count(): Long = helper.blockingReadableTransaction { select(tableName).use { it.count.toLong() } }
-}
+}

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

@@ -10,15 +10,16 @@ import org.jetbrains.exposed.sql.transactions.transaction
 
 abstract class AbstractExposedWriteCRUDRepo<ObjectType, IdType, InputValueType>(
     flowsChannelsSize: Int = 0,
-    tableName: String = ""
+    tableName: String = "",
+    replyCacheInFlows: Int = 0
 ) :
     AbstractExposedReadCRUDRepo<ObjectType, IdType>(tableName),
     ExposedCRUDRepo<ObjectType, IdType>,
     WriteStandardCRUDRepo<ObjectType, IdType, InputValueType>
 {
-    protected val newObjectsChannel = MutableSharedFlow<ObjectType>(flowsChannelsSize)
-    protected val updateObjectsChannel = MutableSharedFlow<ObjectType>(flowsChannelsSize)
-    protected val deleteObjectsIdsChannel = MutableSharedFlow<IdType>(flowsChannelsSize)
+    protected val newObjectsChannel = MutableSharedFlow<ObjectType>(replyCacheInFlows, flowsChannelsSize)
+    protected val updateObjectsChannel = MutableSharedFlow<ObjectType>(replyCacheInFlows, flowsChannelsSize)
+    protected val deleteObjectsIdsChannel = MutableSharedFlow<IdType>(replyCacheInFlows, flowsChannelsSize)
 
     override val newObjectsFlow: Flow<ObjectType> = newObjectsChannel.asSharedFlow()
     override val updatedObjectsFlow: Flow<ObjectType> = updateObjectsChannel.asSharedFlow()

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

@@ -19,8 +19,8 @@ open class ExposedKeyValueRepo<Key, Value>(
     valueColumnAllocator,
     tableName
 ) {
-    private val _onNewValue = MutableSharedFlow<Pair<Key, Value>>()
-    private val _onValueRemoved = MutableSharedFlow<Key>()
+    protected val _onNewValue = MutableSharedFlow<Pair<Key, Value>>()
+    protected val _onValueRemoved = MutableSharedFlow<Key>()
 
     override val onNewValue: Flow<Pair<Key, Value>> = _onNewValue.asSharedFlow()
     override val onValueRemoved: Flow<Key> = _onValueRemoved.asSharedFlow()

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

@@ -23,13 +23,13 @@ class ReadMapCRUDRepo<ObjectType, IdType>(
 }
 
 abstract class WriteMapCRUDRepo<ObjectType, IdType, InputValueType>(
-    private val map: MutableMap<IdType, ObjectType> = mutableMapOf()
+    protected val map: MutableMap<IdType, ObjectType> = mutableMapOf()
 ) : WriteStandardCRUDRepo<ObjectType, IdType, InputValueType> {
-    private val _newObjectsFlow: MutableSharedFlow<ObjectType> = MutableSharedFlow()
+    protected val _newObjectsFlow: MutableSharedFlow<ObjectType> = MutableSharedFlow()
     override val newObjectsFlow: Flow<ObjectType> = _newObjectsFlow.asSharedFlow()
-    private val _updatedObjectsFlow: MutableSharedFlow<ObjectType> = MutableSharedFlow()
+    protected val _updatedObjectsFlow: MutableSharedFlow<ObjectType> = MutableSharedFlow()
     override val updatedObjectsFlow: Flow<ObjectType> = _updatedObjectsFlow.asSharedFlow()
-    private val _deletedObjectsIdsFlow: MutableSharedFlow<IdType> = MutableSharedFlow()
+    protected val _deletedObjectsIdsFlow: MutableSharedFlow<IdType> = MutableSharedFlow()
     override val deletedObjectsIdsFlow: Flow<IdType> = _deletedObjectsIdsFlow.asSharedFlow()
 
     protected abstract suspend fun updateObject(newValue: InputValueType, id: IdType, old: ObjectType): ObjectType

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

@@ -8,7 +8,7 @@ import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.MutableSharedFlow
 
 class ReadMapKeyValueRepo<Key, Value>(
-    private val map: Map<Key, Value> = emptyMap()
+    protected val map: Map<Key, Value> = emptyMap()
 ) : ReadStandardKeyValueRepo<Key, Value> {
     override suspend fun get(k: Key): Value? = map[k]
 

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

@@ -11,6 +11,7 @@ open class TypedSerializer<T : Any>(
     presetSerializers: Map<String, KSerializer<out T>> = emptyMap(),
 ) : KSerializer<T> {
     protected val serializers = presetSerializers.toMutableMap()
+    @ExperimentalSerializationApi
     @InternalSerializationApi
     override val descriptor: SerialDescriptor = buildSerialDescriptor(
         "TypedSerializer",
@@ -19,21 +20,10 @@ open class TypedSerializer<T : Any>(
         element("type", String.serializer().descriptor)
         element("value", ContextualSerializer(kClass).descriptor)
     }
-    @InternalSerializationApi
-    @Deprecated(
-        "This descriptor was deprecated due to incorrect serial name. You may use it in case something require it, " +
-            "but it is strongly recommended to migrate onto new descriptor"
-    )
-    protected val oldDescriptor: SerialDescriptor = buildSerialDescriptor(
-        "TextSourceSerializer",
-        SerialKind.CONTEXTUAL
-    ) {
-        element("type", String.serializer().descriptor)
-        element("value", ContextualSerializer(kClass).descriptor)
-    }
 
+    @ExperimentalSerializationApi
     @InternalSerializationApi
-    open override fun deserialize(decoder: Decoder): T {
+    override fun deserialize(decoder: Decoder): T {
         return decoder.decodeStructure(descriptor) {
             var type: String? = null
             lateinit var result: T
@@ -56,13 +46,15 @@ open class TypedSerializer<T : Any>(
         }
     }
 
+    @ExperimentalSerializationApi
     @InternalSerializationApi
     protected open fun <O: T> CompositeEncoder.encode(value: O) {
         encodeSerializableElement(descriptor, 1, value::class.serializer() as KSerializer<O>, value)
     }
 
+    @ExperimentalSerializationApi
     @InternalSerializationApi
-    open override fun serialize(encoder: Encoder, value: T) {
+    override fun serialize(encoder: Encoder, value: T) {
         encoder.encodeStructure(descriptor) {
             val valueSerializer = value::class.serializer()
             val type = serializers.keys.first { serializers[it] == valueSerializer }
@@ -81,6 +73,20 @@ open class TypedSerializer<T : Any>(
     }
 }
 
+@InternalSerializationApi
+operator fun <T : Any> TypedSerializer<T>.plusAssign(kClass: KClass<T>) {
+    include(kClass.simpleName!!, kClass.serializer())
+}
+
+@InternalSerializationApi
+operator fun <T : Any> TypedSerializer<T>.minusAssign(kClass: KClass<T>) {
+    exclude(kClass.simpleName!!)
+}
+
 inline fun <reified T : Any> TypedSerializer(
     presetSerializers: Map<String, KSerializer<out T>> = emptyMap()
 ) = TypedSerializer(T::class, presetSerializers)
+
+inline fun <reified T : Any> TypedSerializer(
+    vararg presetSerializers: Pair<String, KSerializer<out T>>
+) = TypedSerializer(presetSerializers.toMap())