saqel/apps/teacher_app/lib/data/models/teacher_models.dart

/**
 * ==============================================================================
 * SAQEL TEACHER STUDIO - DATA MODELS
 * ==============================================================================
 * 
 * نماذج البيانات الخاصة باستوديو المعلم:
 * - نتائج فحص الجودة الإدراكي والأكاديمي (Quality Gate & MIT 20-25 Min Limit)
 * - بيانات التسييل المالي وحسابات الحصص (55% المعلم / 15% المديرية / 30% المنصة)
 * - أوراق العمل والواجبات المدرسية المصححة آلياً
 * - استفسارات وأسئلة الطلبة الميدانية (غرفة الشكوك) والردود السقراطية المسجلة.
 */

class TeacherLessonAuditModel {
  final String lessonTitle;
  final String subject;
  final double durationMinutes;
  final bool durationGatePassed;
  final String? durationWarning;
  final int qualityScore;
  final String approvalStatus;
  final String curriculumAlignment;
  final String audioClarity;
  final int socraticStopsCount;
  final String decision;

  const TeacherLessonAuditModel({
    required this.lessonTitle,
    required this.subject,
    required this.durationMinutes,
    required this.durationGatePassed,
    this.durationWarning,
    required this.qualityScore,
    required this.approvalStatus,
    required this.curriculumAlignment,
    required this.audioClarity,
    required this.socraticStopsCount,
    required this.decision,
  });

  factory TeacherLessonAuditModel.fromJson(Map<String, dynamic> json) {
    return TeacherLessonAuditModel(
      lessonTitle: json['lesson_title'] ?? '',
      subject: json['subject'] ?? 'الفيزياء',
      durationMinutes: (json['duration_minutes'] as num?)?.toDouble() ?? 22.5,
      durationGatePassed: json['duration_gate_passed'] ?? true,
      durationWarning: json['duration_warning'],
      qualityScore: json['quality_score'] ?? 92,
      approvalStatus: json['approval_status'] ?? 'approved_for_broadcast',
      curriculumAlignment: json['curriculum_alignment'] ?? '96% تطابق مع مخرجات المنهاج الوزاري',
      audioClarity: json['audio_clarity'] ?? '95% نقاء صوتي ممتاز',
      socraticStopsCount: json['socratic_stops_count'] ?? 3,
      decision: json['decision'] ?? 'الحصة معتمدة ومؤهلة للبث المشفر والعرض للبيع خارج الثقافة العسكرية 🚀',
    );
  }
}

class TeacherHomeworkModel {
  final String id;
  final String title;
  final String className;
  final String submitted;
  final String dueDate;
  final String averageScore;
  final String status; // 'active', 'completed'

  const TeacherHomeworkModel({
    required this.id,
    required this.title,
    required this.className,
    required this.submitted,
    required this.dueDate,
    required this.averageScore,
    required this.status,
  });
}

class StudentDoubtModel {
  final String id;
  final String studentName;
  final String className;
  final String question;
  final String time;
  final bool replied;
  final bool voiceReply;

  const StudentDoubtModel({
    required this.id,
    required this.studentName,
    required this.className,
    required this.question,
    required this.time,
    required this.replied,
    required this.voiceReply,
  });

  StudentDoubtModel copyWith({
    bool? replied,
    bool? voiceReply,
  }) {
    return StudentDoubtModel(
      id: id,
      studentName: studentName,
      className: className,
      question: question,
      time: time,
      replied: replied ?? this.replied,
      voiceReply: voiceReply ?? this.voiceReply,
    );
  }
}

class TeacherCourseModel {
  final String id;
  final String title;
  final String grade;
  final int totalLessons;
  final int militaryStudents;
  final int externalSubscribers;
  final double priceJod;
  final double netRevenueJod;

  const TeacherCourseModel({
    required this.id,
    required this.title,
    required this.grade,
    required this.totalLessons,
    required this.militaryStudents,
    required this.externalSubscribers,
    required this.priceJod,
    required this.netRevenueJod,
  });
}

class TeacherPayoutRequestModel {
  final String cliqAlias;
  final double amountJod;
  final String requestedAt;
  final String status; // 'queued', 'approved', 'completed'

  const TeacherPayoutRequestModel({
    required this.cliqAlias,
    required this.amountJod,
    required this.requestedAt,
    required this.status,
  });
}