Enhance video playback cubit resilience and K-12 curriculum flow

2026-08-31 17:46:03 +03:00
parent 78b703f625
commit d8a50bb105
34 changed files with 2934 additions and 75 deletions
@@ -0,0 +1,274 @@
+import 'package:flutter/material.dart';
+import '../../core/theme/app_colors.dart';
+
+/// Model representing a Curriculum Subject (المادة الدراسية)
+class SubjectModel {
+  final String id;
+  final String title;
+  final String englishTitle;
+  final String iconCode;
+  final Color primaryColor;
+  final Color secondaryColor;
+  final String gradeLevel;
+  final String stream;
+  final int totalUnits;
+  final int totalLessons;
+  final double masteryScore; // 0 - 100%
+  final List<CurriculumUnitModel> units;
+  final List<ResourceItemModel> textbooks;
+  final List<ResourceItemModel> worksheets;
+  final List<SubjectExamModel> exams;
+
+  const SubjectModel({
+    required this.id,
+    required this.title,
+    required this.englishTitle,
+    required this.iconCode,
+    required this.primaryColor,
+    required this.secondaryColor,
+    this.gradeLevel = 'grade_10',
+    this.stream = 'scientific',
+    this.totalUnits = 0,
+    this.totalLessons = 0,
+    this.masteryScore = 85.0,
+    this.units = const [],
+    this.textbooks = const [],
+    this.worksheets = const [],
+    this.exams = const [],
+  });
+
+  factory SubjectModel.fromJson(String id, Map<String, dynamic> json) {
+    final title = json['name']?.toString() ?? json['title']?.toString() ?? id;
+    final englishTitle = json['english_name']?.toString() ?? '';
+    
+    // Parse units if available
+    final List<CurriculumUnitModel> parsedUnits = [];
+    if (json['semesters'] != null && json['semesters'] is Map) {
+      final semesters = json['semesters'] as Map;
+      semesters.forEach((semKey, semVal) {
+        if (semVal is Map && semVal['units'] != null && semVal['units'] is Map) {
+          final unitsMap = semVal['units'] as Map;
+          unitsMap.forEach((uKey, uVal) {
+            if (uVal is Map) {
+              parsedUnits.add(CurriculumUnitModel.fromJson(
+                uKey.toString(),
+                Map<String, dynamic>.from(uVal),
+                semester: semKey.toString(),
+              ));
+            }
+          });
+        }
+      });
+    }
+
+    // Parse textbooks
+    final List<ResourceItemModel> parsedTextbooks = [];
+    final List<ResourceItemModel> parsedWorksheets = [];
+    if (json['resources'] != null && json['resources'] is Map) {
+      final res = json['resources'] as Map;
+      if (res['textbooks'] != null && res['textbooks']['items'] is List) {
+        for (var item in res['textbooks']['items']) {
+          if (item is Map) {
+            parsedTextbooks.add(ResourceItemModel.fromJson(Map<String, dynamic>.from(item)));
+          }
+        }
+      }
+      if (res['worksheets'] != null && res['worksheets']['items'] is List) {
+        for (var item in res['worksheets']['items']) {
+          if (item is Map) {
+            parsedWorksheets.add(ResourceItemModel.fromJson(Map<String, dynamic>.from(item)));
+          }
+        }
+      }
+    }
+
+    final styling = getSubjectStyling(id);
+
+    return SubjectModel(
+      id: id,
+      title: title,
+      englishTitle: englishTitle.isNotEmpty ? englishTitle : styling.englishTitle,
+      iconCode: styling.iconCode,
+      primaryColor: styling.primaryColor,
+      secondaryColor: styling.secondaryColor,
+      gradeLevel: json['grade_level']?.toString() ?? 'grade_10',
+      stream: json['stream']?.toString() ?? 'scientific',
+      totalUnits: parsedUnits.isNotEmpty ? parsedUnits.length : styling.defaultUnits,
+      totalLessons: parsedUnits.fold(0, (sum, u) => sum + u.lessons.length),
+      masteryScore: (json['mastery_score'] as num?)?.toDouble() ?? 88.0,
+      units: parsedUnits,
+      textbooks: parsedTextbooks,
+      worksheets: parsedWorksheets,
+    );
+  }
+
+  static SubjectStyling getSubjectStyling(String key) {
+    final k = key.toLowerCase();
+    if (k.contains('math') || k.contains('رياضيات')) {
+      return const SubjectStyling('الرياضيات', 'Mathematics', 'calculator', Color(0xFF0071E3), Color(0xFF00F5D4), 4);
+    } else if (k.contains('arabic') || k.contains('عربي') || k.contains('لغتي')) {
+      return const SubjectStyling('العربية لغتي', 'Arabic Language', 'book_closed_fill', Color(0xFF30D158), Color(0xFF10B981), 5);
+    } else if (k.contains('english') || k.contains('انجليز') || k.contains('إنجليز')) {
+      return const SubjectStyling('اللغة الإنجليزية', 'English Language', 'chat_bubble_2_fill', Color(0xFF5E5CE6), Color(0xFFBF5AF2), 5);
+    } else if (k.contains('islamic') || k.contains('إسلامي') || k.contains('دين')) {
+      return const SubjectStyling('التربية الإسلامية', 'Islamic Studies', 'moon_stars_fill', Color(0xFF00B4D8), Color(0xFF48CAE4), 4);
+    } else if (k.contains('physic') || k.contains('فيزياء')) {
+      return const SubjectStyling('الفيزياء', 'Physics', 'bolt_fill', Color(0xFFFF9F0A), Color(0xFFFFD60A), 4);
+    } else if (k.contains('chem') || k.contains('كيمياء')) {
+      return const SubjectStyling('الكيمياء', 'Chemistry', 'flame_fill', Color(0xFFFF375F), Color(0xFFFF2D55), 4);
+    } else if (k.contains('bio') || k.contains('أحياء') || k.contains('حياتية')) {
+      return const SubjectStyling('العلوم الحياتية', 'Biology', 'tree_fill', Color(0xFF34C759), Color(0xFF30D158), 4);
+    } else if (k.contains('earth') || k.contains('أرض') || k.contains('بيئة') || k.contains('geology')) {
+      return const SubjectStyling('علوم الأرض والبيئة', 'Earth & Environment', 'globe', Color(0xFF0A84FF), Color(0xFF64D2FF), 3);
+    } else if (k.contains('history') || k.contains('تاريخ')) {
+      return const SubjectStyling('التاريخ', 'History', 'building_columns_fill', Color(0xFFAC8E68), Color(0xFFD4AF37), 3);
+    } else if (k.contains('geo') || k.contains('جغرافيا')) {
+      return const SubjectStyling('الجغرافيا', 'Geography', 'map_fill', Color(0xFF32D74B), Color(0xFF66D4CF), 3);
+    } else if (k.contains('civic') || k.contains('وطنية') || k.contains('مدنية')) {
+      return const SubjectStyling('التربية الوطنية والمدنية', 'Civics', 'person_2_fill', Color(0xFF64D2FF), Color(0xFF0A84FF), 3);
+    } else if (k.contains('digital') || k.contains('حاسوب') || k.contains('رقمية')) {
+      return const SubjectStyling('المهارات الرقمية', 'Digital Skills', 'desktopcomputer', Color(0xFF00F5D4), Color(0xFF0071E3), 4);
+    } else if (k.contains('finance') || k.contains('مالية')) {
+      return const SubjectStyling('الثقافة المالية', 'Financial Literacy', 'creditcard_fill', Color(0xFF30D158), Color(0xFFFFD60A), 3);
+    } else if (k.contains('vocational') || k.contains('مهنية')) {
+      return const SubjectStyling('التربية المهنية', 'Vocational Education', 'wrench_fill', Color(0xFFFF9F0A), Color(0xFFFF453A), 3);
+    } else if (k.contains('art') || k.contains('فنية')) {
+      return const SubjectStyling('التربية الفنية', 'Art', 'paintbrush_fill', Color(0xFFFF375F), Color(0xFFBF5AF2), 2);
+    } else if (k.contains('sport') || k.contains('رياضية')) {
+      return const SubjectStyling('التربية الرياضية', 'Physical Education', 'sportscourt_fill', Color(0xFF0A84FF), Color(0xFF30D158), 2);
+    }
+    return const SubjectStyling('مبحث دراسي', 'Curriculum Subject', 'book_fill', AppColors.appleBlue, AppColors.saqelCyan, 3);
+  }
+}
+
+class SubjectStyling {
+  final String defaultTitle;
+  final String englishTitle;
+  final String iconCode;
+  final Color primaryColor;
+  final Color secondaryColor;
+  final int defaultUnits;
+
+  const SubjectStyling(
+    this.defaultTitle,
+    this.englishTitle,
+    this.iconCode,
+    this.primaryColor,
+    this.secondaryColor,
+    this.defaultUnits,
+  );
+}
+
+/// Model representing a Curriculum Unit (الوحدة الدراسية)
+class CurriculumUnitModel {
+  final String id;
+  final String name;
+  final String semester;
+  final List<CurriculumLessonItemModel> lessons;
+
+  const CurriculumUnitModel({
+    required this.id,
+    required this.name,
+    this.semester = 'semester_1',
+    this.lessons = const [],
+  });
+
+  factory CurriculumUnitModel.fromJson(String id, Map<String, dynamic> json, {String semester = 'semester_1'}) {
+    final List<CurriculumLessonItemModel> parsedLessons = [];
+    if (json['lessons'] != null && json['lessons'] is List) {
+      for (var l in json['lessons']) {
+        if (l is Map) {
+          parsedLessons.add(CurriculumLessonItemModel.fromJson(Map<String, dynamic>.from(l)));
+        }
+      }
+    }
+
+    return CurriculumUnitModel(
+      id: id,
+      name: json['name']?.toString() ?? id,
+      semester: semester,
+      lessons: parsedLessons,
+    );
+  }
+}
+
+/// Model representing a Lesson Item inside a Unit
+class CurriculumLessonItemModel {
+  final String id;
+  final String title;
+  final List<String> outcomes;
+  final String? markdownFilePath;
+  final int durationSeconds;
+  final int checkpointsCount;
+  final bool isCompleted;
+
+  const CurriculumLessonItemModel({
+    required this.id,
+    required this.title,
+    this.outcomes = const [],
+    this.markdownFilePath,
+    this.durationSeconds = 1200, // 20 mins default
+    this.checkpointsCount = 3,
+    this.isCompleted = false,
+  });
+
+  factory CurriculumLessonItemModel.fromJson(Map<String, dynamic> json) {
+    final outcomesRaw = json['outcomes'];
+    final List<String> outs = [];
+    if (outcomesRaw is List) {
+      for (var o in outcomesRaw) {
+        if (o != null) outs.add(o.toString());
+      }
+    }
+
+    return CurriculumLessonItemModel(
+      id: json['id']?.toString() ?? 'lesson_${DateTime.now().millisecondsSinceEpoch}',
+      title: json['title']?.toString() ?? 'درس بدون عنوان',
+      outcomes: outs,
+      markdownFilePath: json['file']?.toString(),
+      durationSeconds: (json['duration_seconds'] as num?)?.toInt() ?? 1200,
+      checkpointsCount: (json['checkpoints_count'] as num?)?.toInt() ?? 3,
+      isCompleted: (json['is_completed'] as bool?) ?? false,
+    );
+  }
+}
+
+/// Model representing a Resource Item (PDF Textbook or Worksheet)
+class ResourceItemModel {
+  final String title;
+  final String filePath;
+  final String type; // textbook, worksheet, summary
+
+  const ResourceItemModel({
+    required this.title,
+    required this.filePath,
+    this.type = 'textbook',
+  });
+
+  factory ResourceItemModel.fromJson(Map<String, dynamic> json) {
+    return ResourceItemModel(
+      title: json['title']?.toString() ?? 'ملف وزاري',
+      filePath: json['file']?.toString() ?? '',
+      type: json['type']?.toString() ?? 'textbook',
+    );
+  }
+}
+
+/// Model representing an Exam / Question Bank item for the subject
+class SubjectExamModel {
+  final String id;
+  final String title;
+  final int questionsCount;
+  final int durationMinutes;
+  final double targetScore;
+  final String difficulty; // easy, medium, hard, ministerial
+
+  const SubjectExamModel({
+    required this.id,
+    required this.title,
+    this.questionsCount = 20,
+    this.durationMinutes = 40,
+    this.targetScore = 100.0,
+    this.difficulty = 'ministerial',
+  });
+}