feat: Adding more helpers, wip

Sources/ComposableSubscriber/Effect+receive.swift

@@ -0,0 +1,51 @@
+import ComposableArchitecture
+import OSLog
+
+public protocol ReceiveAction<ReceiveAction> {
+  associatedtype ReceiveAction
+  static func receive(_ result: TaskResult<ReceiveAction>) -> Self
+
+  var result: TaskResult<ReceiveAction>? { get }
+}
+
+extension ReceiveAction {
+
+  public var result: TaskResult<ReceiveAction>? {
+    AnyCasePath(unsafe: Self.receive).extract(from: self)
+  }
+}
+
+extension Effect where Action: ReceiveAction {
+
+  public static func receive(
+    _ operation: @escaping () async throws -> Action.ReceiveAction
+  ) -> Self {
+    .run { send in
+      await send(.receive(
+        TaskResult { try await operation() }
+      ))
+    }
+  }
+
+  public static func receive<T>(
+    _ operation: @escaping () async throws -> T,
+    transform: @escaping (T) -> Action.ReceiveAction
+  ) -> Self {
+    .run { send in
+      await send(.receive(
+        TaskResult { try await operation() }
+          .map(transform)
+      ))
+    }
+  }
+
+  public static func receive<T>(
+    _ toReceiveAction: CaseKeyPath<Action.ReceiveAction, T>,
+    _ operation: @escaping () async throws -> T
+  ) -> Self {
+    return .receive(operation) {
+      AnyCasePath(toReceiveAction).embed($0)
+    }
+  }
+}
+