From 7ac12455c820c35eb27e34026c08e90655cc757b Mon Sep 17 00:00:00 2001
From: InsanusMokrassar <ovsyannikov.alexey95@gmail.com>
Date: Tue, 28 Jun 2022 00:19:25 +0600
Subject: [PATCH] add ReadCRUDRepo mappers

---
 CHANGELOG.md                                  |  4 ++
 .../micro_utils/repos/mappers/CRUDMappers.kt  | 42 +++++++++++++++++++
 2 files changed, 46 insertions(+)
 create mode 100644 repos/common/src/commonMain/kotlin/dev/inmo/micro_utils/repos/mappers/CRUDMappers.kt

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 34ea789d010..aa1755adb01 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## 0.11.7
 
+* `Repos`:
+  * `Common`:
+    * Add mappers for `ReadCRUDRepo`
+
 ## 0.11.6
 
 * `FSM`:
diff --git a/repos/common/src/commonMain/kotlin/dev/inmo/micro_utils/repos/mappers/CRUDMappers.kt b/repos/common/src/commonMain/kotlin/dev/inmo/micro_utils/repos/mappers/CRUDMappers.kt
new file mode 100644
index 00000000000..0f9e45e58c0
--- /dev/null
+++ b/repos/common/src/commonMain/kotlin/dev/inmo/micro_utils/repos/mappers/CRUDMappers.kt
@@ -0,0 +1,42 @@
+package dev.inmo.micro_utils.repos.mappers
+
+import dev.inmo.micro_utils.pagination.*
+import dev.inmo.micro_utils.repos.*
+
+open class MapperReadCRUDRepo<FromId, FromRegistered, ToId, ToRegistered>(
+    private val to: ReadCRUDRepo<ToRegistered, ToId>,
+    mapper: MapperRepo<FromId, FromRegistered, ToId, ToRegistered>
+) : ReadCRUDRepo<FromRegistered, FromId>, MapperRepo<FromId, FromRegistered, ToId, ToRegistered> by mapper {
+    override suspend fun getByPagination(
+        pagination: Pagination
+    ): PaginationResult<FromRegistered> = to.getByPagination(
+        pagination
+    ).let {
+        it.changeResultsUnchecked(
+            it.results.map { it.toInnerValue() }
+        )
+    }
+
+    override suspend fun count(): Long = to.count()
+
+    override suspend fun contains(id: FromId): Boolean = to.contains(id.toOutKey())
+
+    override suspend fun getById(id: FromId): FromRegistered? = to.getById(
+        id.toOutKey()
+    ) ?.toInnerValue()
+}
+
+@Suppress("NOTHING_TO_INLINE")
+inline fun <FromKey, FromValue, ToKey, ToValue> ReadCRUDRepo<ToValue, ToKey>.withMapper(
+    mapper: MapperRepo<FromKey, FromValue, ToKey, ToValue>
+): ReadCRUDRepo<FromValue, FromKey> = MapperReadCRUDRepo(this, mapper)
+
+@Suppress("NOTHING_TO_INLINE")
+inline fun <reified FromKey, reified FromValue, reified ToKey, reified ToValue> ReadCRUDRepo<ToValue, ToKey>.withMapper(
+    crossinline keyFromToTo: suspend FromKey.() -> ToKey = { this as ToKey },
+    crossinline valueFromToTo: suspend FromValue.() -> ToValue = { this as ToValue },
+    crossinline keyToToFrom: suspend ToKey.() -> FromKey = { this as FromKey },
+    crossinline valueToToFrom: suspend ToValue.() -> FromValue = { this as FromValue },
+): ReadCRUDRepo<FromValue, FromKey> = withMapper(
+    mapper(keyFromToTo, valueFromToTo, keyToToFrom, valueToToFrom)
+)