LoadableViewObservable

Author: anconaesselmann

Sources/LoadableView/Protocols/LoadableView/BaseLoadableViewModel+Refresh.swift

@@ -0,0 +1,55 @@
+//  Created by Axel Ancona Esselmann on 10/31/24.
+//
+
+import Foundation
+import Combine
+
+public extension BaseLoadableViewModel {
+
+    func refresh() {
+        self.refresh(showLoading: false)
+    }
+
+    func refresh(with item: Element) {
+        update(with: item)
+        refresh()
+    }
+
+    func refresh(on changePublisher: AnyPublisher<Void, Never>, showLoading: Bool) -> AnyCancellable {
+        changePublisher.sink { [weak self] in
+            self?.refresh(showLoading: showLoading)
+        }
+    }
+
+    func refresh(on changePublisher: AnyPublisher<Void, Never>) -> AnyCancellable {
+        refresh(on: changePublisher, showLoading: false)
+    }
+
+    func refresh(on changePublishers: [AnyPublisher<Void, Never>], showLoading: Bool = false) -> AnyCancellable {
+        refresh(on: Publishers.MergeMany(changePublishers).eraseToAnyPublisher(), showLoading: showLoading)
+    }
+
+    func refresh(on changePublisher: AnyPublisher<Void, Never>..., showLoading: Bool = false) -> AnyCancellable {
+        refresh(on: changePublisher, showLoading: showLoading)
+    }
+
+    func observe<Observable>(
+        _ change: Set<Observable.Change>,
+        on observable: Observable,
+        showLoading: Bool = false
+    ) -> AnyCancellable
+        where Observable: LoadableViewObservable
+    {
+        refresh(on: observable.publisher(for: change), showLoading: showLoading)
+    }
+
+    func observe<Observable>(
+        _ change: Observable.Change...,
+        on observable: Observable,
+        showLoading: Bool = false
+    ) -> AnyCancellable
+        where Observable: LoadableViewObservable
+    {
+        observe(Set(change), on: observable, showLoading: showLoading)
+    }
+}

Sources/LoadableView/Protocols/LoadableView/BaseLoadableViewModel.swift

@@ -21,6 +21,7 @@ public protocol BaseLoadableViewModel: ObservableObject, AnyObject {
 
     // MARK: - Don't implement
     func refresh(showLoading: Bool)
+    func refresh(on changePublisher: AnyPublisher<Void, Never>, showLoading: Bool) -> AnyCancellable
 
     // MARK: - Optional implementation
     func cancel() async
@@ -86,15 +87,6 @@ public extension BaseLoadableViewModel {
         }
     }
 
-    func refresh() {
-        self.refresh(showLoading: false)
-    }
-
-    func refresh(with item: Element) {
-        update(with: item)
-        refresh()
-    }
-
     @MainActor
     func setLoaded(_ newValue: Element) {
         viewState = .loaded(newValue)

Sources/LoadableView/Protocols/LoadableViewObservable.swift

@@ -0,0 +1,11 @@
+//  Created by Axel Ancona Esselmann on 10/31/24.
+//
+
+import Foundation
+import Combine
+
+public protocol LoadableViewObservable {
+    associatedtype Change
+        where Change: Hashable
+    nonisolated func publisher(for observableChange: Set<Change>) -> AnyPublisher<(), Never>
+}