Release 1.0.0

Sources/XXMessengerClient/Utils/ReceiveFileCallbacksRegistry.swift

+import Foundation
+import XCTestDynamicOverlay
+import XXClient
+
+public struct ReceiveFileCallbacksRegistry {
+  public var register: (ReceiveFileCallback) -> Cancellable
+  public var registered: () -> ReceiveFileCallback
+}
+
+extension ReceiveFileCallbacksRegistry {
+  public static func live() -> ReceiveFileCallbacksRegistry {
+    class Registry {
+      var callbacks: [UUID: ReceiveFileCallback] = [:]
+    }
+    let registry = Registry()
+    return ReceiveFileCallbacksRegistry(
+      register: { callback in
+        let id = UUID()
+        registry.callbacks[id] = callback
+        return Cancellable { registry.callbacks[id] = nil }
+      },
+      registered: {
+        ReceiveFileCallback { result in
+          registry.callbacks.values.forEach { $0.handle(result) }
+        }
+      }
+    )
+  }
+}
+
+extension ReceiveFileCallbacksRegistry {
+  public static let unimplemented = ReceiveFileCallbacksRegistry(
+    register: XCTUnimplemented("\(Self.self).register", placeholder: Cancellable {}),
+    registered: XCTUnimplemented("\(Self.self).registered", placeholder: .unimplemented)
+  )
+}