import AppIntents
import Foundation

enum RecordingLiveActivityCommand: String, Sendable {
    case togglePause
    case stop
}

extension Notification.Name {
    static let recordingLiveActivityCommand = Notification.Name(
        "com.celestia.trace.recording-live-activity-command"
    )
}

private enum RecordingLiveActivityIntentDispatcher {
    @MainActor
    static func post(_ command: RecordingLiveActivityCommand, sessionID: String) {
        NotificationCenter.default.post(
            name: .recordingLiveActivityCommand,
            object: nil,
            userInfo: [
                "sessionID": sessionID,
                "command": command.rawValue
            ]
        )
    }
}

struct TogglePauseRecordingIntent: LiveActivityIntent {
    static var title: LocalizedStringResource = "暂停或继续录音"
    static var description = IntentDescription("在锁屏或灵动岛上静默切换当前录音的暂停状态。")
    static var openAppWhenRun = false

    @Parameter(title: "记录 ID")
    var sessionID: String

    init() {}

    init(sessionID: UUID) {
        self.sessionID = sessionID.uuidString
    }

    func perform() async throws -> some IntentResult {
        await RecordingLiveActivityIntentDispatcher.post(
            .togglePause,
            sessionID: sessionID
        )
        return .result()
    }
}

struct StopRecordingIntent: LiveActivityIntent {
    static var title: LocalizedStringResource = "结束录音"
    static var description = IntentDescription("在锁屏或灵动岛上静默结束当前录音。")
    static var openAppWhenRun = false

    @Parameter(title: "记录 ID")
    var sessionID: String

    init() {}

    init(sessionID: UUID) {
        self.sessionID = sessionID.uuidString
    }

    func perform() async throws -> some IntentResult {
        await RecordingLiveActivityIntentDispatcher.post(
            .stop,
            sessionID: sessionID
        )
        return .result()
    }
}