Add iOS 27 remote media session and system player extension

2026-09-14 00:17:07 +03:00
parent 2fbf3bf859
commit e2902e6031
16 changed files with 667 additions and 30 deletions
@@ -0,0 +1,56 @@
+import Foundation
+
+enum SystemPlayerAction { case play, pause, next, previous, seek, volume }
+
+@MainActor
+final class SystemPlayerTransport {
+    private var busy = false
+
+    func send(_ action: SystemPlayerAction, value: Double? = nil, sessionID: String) async throws -> MediaState {
+        guard !busy else { throw BridgeError.message("Предыдущая команда ещё выполняется.") }
+        busy = true
+        defer { busy = false }
+        let saved = try SystemPlayerCredentials.load(sessionID)
+        let client = BridgeClient(saved, timeout: 5)
+        defer { client.close() }
+        return try await Self.execute(action, value: value, client: client) {
+            let current = try SystemPlayerCredentials.load(sessionID)
+            guard current.endpoint == saved.endpoint, current.fingerprint == saved.fingerprint, current.token == saved.token else {
+                throw BridgeError.unauthorized
+            }
+        }
+    }
+
+    static func execute(_ action: SystemPlayerAction, value: Double? = nil, client: BridgeClient,
+                        validate: () throws -> Void = {}) async throws -> MediaState {
+        let state = try await client.state()
+        try validate()
+        let command = try command(action, value: value, state: state)
+        do { try await client.command(command) }
+        catch {
+            if error is URLError { throw BridgeError.message("Результат команды неизвестен. Откройте плеер перед повтором.") }
+            throw error
+        }
+        do { return try await client.state() }
+        catch {
+            if case BridgeError.unauthorized = error { throw error }
+            throw BridgeError.message("Команда выполнена, но новый трек не получен. Откройте приложение для обновления.")
+        }
+    }
+
+    static func command(_ action: SystemPlayerAction, value: Double?, state: MediaState) throws -> Command {
+        switch action {
+        case .play where state.hasSession && state.capabilities.play: return Command(type: "play", value: nil)
+        case .pause where state.hasSession && state.capabilities.pause: return Command(type: "pause", value: nil)
+        case .next where state.hasSession && state.capabilities.next: return Command(type: "next", value: nil)
+        case .previous where state.hasSession && state.capabilities.previous: return Command(type: "previous", value: nil)
+        case .seek where state.hasSession && state.capabilities.seek && state.maxSeekSeconds > state.minSeekSeconds:
+            guard let value, value.isFinite else { throw BridgeError.message("Некорректная позиция трека.") }
+            return Command(type: "seek", value: min(state.maxSeekSeconds, max(state.minSeekSeconds, state.startSeconds + value)))
+        case .volume where state.volume != nil:
+            guard let value, value.isFinite else { throw BridgeError.message("Некорректная громкость.") }
+            return Command(type: "volume", value: min(1, max(0, value)))
+        default: throw BridgeError.message("Плеер на ПК не поддерживает эту команду.")
+        }
+    }
+}