⚡️: refactor useReducer,the return value is changed from Tuple2 t…

…o `Tuple3`, and `dispatchAsync` is added
junerver · Sep 6, 2024 · e3f7248 · e3f7248
1 parent 5c2ff82
commit e3f7248
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Showing 2 changed files with 17 additions and 5 deletions.
diff --git a/app/src/main/java/xyz/junerver/composehooks/example/UseReducerExample.kt b/app/src/main/java/xyz/junerver/composehooks/example/UseReducerExample.kt
@@ -21,10 +21,12 @@ import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.unit.dp
+import kotlin.time.Duration.Companion.seconds
 import kotlinx.collections.immutable.PersistentList
 import kotlinx.collections.immutable.mutate
 import kotlinx.collections.immutable.persistentListOf
 import kotlinx.collections.immutable.plus
+import kotlinx.coroutines.delay
 import xyz.junerver.compose.hooks.Middleware
 import xyz.junerver.compose.hooks.Reducer
 import xyz.junerver.compose.hooks.useGetState
@@ -165,7 +167,7 @@ fun AddTask(onAddTask: (String) -> Unit) {
 
 @Composable
 fun TaskApp() {
-    val (tasks, dispatch) = useReducer<PersistentList<Task>, TaskAction>(
+    val (tasks, dispatch, dispatchAsync) = useReducer<PersistentList<Task>, TaskAction>(
         { prevState, action ->
             when (action) {
                 is TaskAction.Added -> prevState + Task(nextId++, action.text, false)
@@ -189,7 +191,10 @@ fun TaskApp() {
     )
 
     fun handleAddTask(text: String) {
-        dispatch(TaskAction.Added(text))
+        dispatchAsync {
+            delay(2.seconds)
+            TaskAction.Added(text)
+        }
     }
 
     fun handleChangeTask(task: Task) {

diff --git a/hooks/src/main/kotlin/xyz/junerver/compose/hooks/useReducer.kt b/hooks/src/main/kotlin/xyz/junerver/compose/hooks/useReducer.kt
@@ -3,7 +3,8 @@ package xyz.junerver.compose.hooks
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.setValue
-import xyz.junerver.kotlin.Tuple2
+import xyz.junerver.compose.hooks.useredux.DispatchAsync
+import xyz.junerver.kotlin.Tuple3
 
 /*
   Description:
@@ -30,7 +31,8 @@ fun <S, A> useReducer(
     reducer: Reducer<S, A>,
     initialState: S,
     middlewares: Array<Middleware<S, A>> = emptyArray(),
-): Tuple2<S, Dispatch<A>> {
+): Tuple3<S, Dispatch<A>, DispatchAsync<A>> {
+    val asyncRun = useAsync()
     var state by _useState(initialState)
     val dispatch = { action: A -> state = reducer(state, action) }
     val enhancedDispatch: Dispatch<A> = if (middlewares.isNotEmpty()) {
@@ -44,5 +46,10 @@ fun <S, A> useReducer(
     } else {
         dispatch
     }
-    return Tuple2(state, enhancedDispatch)
+    val enhancedDispatchAsync: DispatchAsync<A> = { block ->
+        asyncRun {
+            enhancedDispatch(block(enhancedDispatch))
+        }
+    }
+    return Tuple3(state, enhancedDispatch, enhancedDispatchAsync)
 }