Merge pull request #25 from InsanusMokrassar/0.4.8

0.4.8

CHANGELOG.md

@@ -1,5 +1,13 @@
 # Changelog
 
+## 0.4.8
+
+* `Versions`:
+    * `Coroutines`: `1.4.1` -> `1.4.2`
+    * `UUID`: `0.2.2` -> `0.2.3`
+* `Pagination`
+    * Add `PaginatedIterable` and `PaginatedIterator`
+
 ## 0.4.7
 
 * `Ktor`

gradle.properties

@@ -5,10 +5,9 @@ kotlin.incremental=true
 kotlin.incremental.js=true
 android.useAndroidX=true
 android.enableJetifier=true
-org.gradle.jvmargs=-Xmx2048m
 
 kotlin_version=1.4.20
-kotlin_coroutines_version=1.4.1
+kotlin_coroutines_version=1.4.2
 kotlin_serialisation_core_version=1.0.1
 kotlin_exposed_version=0.28.1
 
@@ -18,7 +17,7 @@ klockVersion=2.0.0
 
 github_release_plugin_version=2.2.12
 
-uuidVersion=0.2.2
+uuidVersion=0.2.3
 
 # ANDROID
 
@@ -36,10 +35,10 @@ espresso_core=3.3.0
 
 # Dokka
 
-dokka_version=1.4.0
+dokka_version=1.4.10.2
 
 # Project data
 
 group=dev.inmo
-version=0.4.7
-android_code_version=11
+version=0.4.8
+android_code_version=12

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

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