import '../utils/app_time.dart';

class PassSlip {
  PassSlip({
    required this.id,
    required this.userId,
    required this.dutyScheduleId,
    required this.reason,
    required this.status,
    required this.requestedAt,
    this.approvedBy,
    this.approvedAt,
    this.slipStart,
    this.slipEnd,
  });

  final String id;
  final String userId;
  final String dutyScheduleId;
  final String reason;
  final String status; // 'pending', 'approved', 'rejected', 'completed'
  final DateTime requestedAt;
  final String? approvedBy;
  final DateTime? approvedAt;
  final DateTime? slipStart;
  final DateTime? slipEnd;

  /// Whether the slip is active (approved but not yet completed).
  bool get isActive => status == 'approved' && slipEnd == null;

  /// Whether the active slip has exceeded 1 hour.
  bool get isExceeded =>
      isActive &&
      slipStart != null &&
      AppTime.now().difference(slipStart!) > const Duration(hours: 1);

  factory PassSlip.fromMap(Map<String, dynamic> map) {
    return PassSlip(
      id: map['id'] as String,
      userId: map['user_id'] as String,
      dutyScheduleId: map['duty_schedule_id'] as String,
      reason: map['reason'] as String,
      status: map['status'] as String? ?? 'pending',
      requestedAt: AppTime.parse(map['requested_at'] as String),
      approvedBy: map['approved_by'] as String?,
      approvedAt: map['approved_at'] == null
          ? null
          : AppTime.parse(map['approved_at'] as String),
      slipStart: map['slip_start'] == null
          ? null
          : AppTime.parse(map['slip_start'] as String),
      slipEnd: map['slip_end'] == null
          ? null
          : AppTime.parse(map['slip_end'] as String),
    );
  }
}