/// 设备状态模型
enum DeviceStatus { idle, running, paused, error }

/// 设备状态数据
class DeviceState {
  final DeviceStatus status;
  final String? currentProgram;
  final String? currentPosition;
  final int? currentStepNo;
  final String? currentStepName;
  final int? remainingSeconds;
  final double? progress;
  final bool lightingOn;

  DeviceState({
    this.status = DeviceStatus.idle,
    this.currentProgram,
    this.currentPosition,
    this.currentStepNo,
    this.currentStepName,
    this.remainingSeconds,
    this.progress,
    this.lightingOn = false,
  });

  bool get isRunning => status == DeviceStatus.running;
  bool get isPaused => status == DeviceStatus.paused;
  bool get isIdle => status == DeviceStatus.idle;
  bool get hasError => status == DeviceStatus.error;

  String statusText() {
    switch (status) {
      case DeviceStatus.running:
        return '运行中';
      case DeviceStatus.paused:
        return '已暂停';
      case DeviceStatus.error:
        return '错误';
      case DeviceStatus.idle:
        return '未运行';
    }
  }

  String formatRemainingTime() {
    if (remainingSeconds == null) return '--:--:--';
    final hours = remainingSeconds! ~/ 3600;
    final minutes = (remainingSeconds! % 3600) ~/ 60;
    final seconds = remainingSeconds! % 60;
    return '${hours.toString().padLeft(2, '0')}:${minutes.toString().padLeft(2, '0')}:${seconds.toString().padLeft(2, '0')}';
  }

  DeviceState copyWith({
    DeviceStatus? status,
    String? currentProgram,
    String? currentPosition,
    int? currentStepNo,
    String? currentStepName,
    int? remainingSeconds,
    double? progress,
    bool? lightingOn,
  }) {
    return DeviceState(
      status: status ?? this.status,
      currentProgram: currentProgram ?? this.currentProgram,
      currentPosition: currentPosition ?? this.currentPosition,
      currentStepNo: currentStepNo ?? this.currentStepNo,
      currentStepName: currentStepName ?? this.currentStepName,
      remainingSeconds: remainingSeconds ?? this.remainingSeconds,
      progress: progress ?? this.progress,
      lightingOn: lightingOn ?? this.lightingOn,
    );
  }
}