Update Saqel Platform: 2026-08-28 04:45:18

backend/database_schema.sql

@@ -9,6 +9,8 @@ SET FOREIGN_KEY_CHECKS = 0;
 -- ------------------------------------------------------------------------------
 -- DROP ALL EXISTING TABLES IN REVERSE ORDER TO PREVENT FOREIGN KEY CONFLICTS
 -- ------------------------------------------------------------------------------
+DROP TABLE IF EXISTS `teacher_reviews`;
+DROP TABLE IF EXISTS `teacher_performance_metrics`;
 DROP TABLE IF EXISTS `chat_messages`;
 DROP TABLE IF EXISTS `student_mastery_analytics`;
 DROP TABLE IF EXISTS `student_question_answers`;
@@ -153,13 +155,17 @@ CREATE TABLE IF NOT EXISTS `lessons` (
   `course_id` BIGINT UNSIGNED NOT NULL,
   `title` VARCHAR(255) NOT NULL,
   `sequence_order` INT UNSIGNED NOT NULL DEFAULT 1,
-  `bunny_video_id` VARCHAR(100) NOT NULL,
+  `video_uuid` VARCHAR(64) DEFAULT NULL,
+  `hls_url` VARCHAR(500) DEFAULT NULL,
+  `timeline_chapters_json` JSON DEFAULT NULL,
+  `bunny_video_id` VARCHAR(100) DEFAULT NULL,
   `duration_seconds` INT UNSIGNED NOT NULL DEFAULT 0,
   `is_free_preview` TINYINT(1) NOT NULL DEFAULT 0,
   `created_at` TIMESTAMP NULL DEFAULT CURRENT_TIMESTAMP,
   `updated_at` TIMESTAMP NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
   PRIMARY KEY (`id`),
   KEY `idx_lessons_course` (`course_id`),
+  KEY `idx_lessons_video_uuid` (`video_uuid`),
   CONSTRAINT `fk_lessons_course` FOREIGN KEY (`course_id`) REFERENCES `courses` (`id`) ON DELETE CASCADE
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
 
@@ -406,4 +412,54 @@ CREATE TABLE IF NOT EXISTS `chat_messages` (
   CONSTRAINT `fk_chat_lesson` FOREIGN KEY (`lesson_id`) REFERENCES `lessons` (`id`) ON DELETE SET NULL
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
 
+-- ------------------------------------------------------------------------------
+-- 19. Table: teacher_reviews (تقييمات الطلاب المعايرة والمحصنة ضد الكيد)
+-- ------------------------------------------------------------------------------
+CREATE TABLE IF NOT EXISTS `teacher_reviews` (
+  `id` BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
+  `teacher_id` BIGINT UNSIGNED NOT NULL,
+  `student_id` BIGINT UNSIGNED NOT NULL,
+  `course_id` BIGINT UNSIGNED DEFAULT NULL,
+  `lesson_id` BIGINT UNSIGNED DEFAULT NULL,
+  `rating_overall` DECIMAL(3, 2) NOT NULL DEFAULT 5.00,
+  `rating_clarity` INT NOT NULL DEFAULT 5,
+  `rating_response_speed` INT NOT NULL DEFAULT 5,
+  `rating_socratic_interaction` INT NOT NULL DEFAULT 5,
+  `review_text` TEXT DEFAULT NULL,
+  `review_weight` DECIMAL(4, 3) NOT NULL DEFAULT 1.000,
+  `student_watch_percentage` DECIMAL(5, 2) NOT NULL DEFAULT 100.00,
+  `socratic_accuracy_rate` DECIMAL(5, 2) NOT NULL DEFAULT 100.00,
+  `is_flagged_anomaly` TINYINT(1) NOT NULL DEFAULT 0,
+  `is_verified` TINYINT(1) NOT NULL DEFAULT 1,
+  `created_at` TIMESTAMP NULL DEFAULT CURRENT_TIMESTAMP,
+  PRIMARY KEY (`id`),
+  KEY `idx_tr_teacher` (`teacher_id`),
+  KEY `idx_tr_student` (`student_id`),
+  CONSTRAINT `fk_tr_teacher` FOREIGN KEY (`teacher_id`) REFERENCES `users` (`id`) ON DELETE CASCADE,
+  CONSTRAINT `fk_tr_student` FOREIGN KEY (`student_id`) REFERENCES `users` (`id`) ON DELETE CASCADE
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
+
+-- ------------------------------------------------------------------------------
+-- 20. Table: teacher_performance_metrics (مؤشرات الجدارة وسرعة الرد مع خوارزمية الطابور العادل)
+-- ------------------------------------------------------------------------------
+CREATE TABLE IF NOT EXISTS `teacher_performance_metrics` (
+  `teacher_id` BIGINT UNSIGNED NOT NULL,
+  `avg_response_minutes` INT NOT NULL DEFAULT 4,
+  `response_rate_percentage` DECIMAL(5, 2) NOT NULL DEFAULT 98.50,
+  `active_queue_count` INT UNSIGNED NOT NULL DEFAULT 0,
+  `total_students_enrolled` INT UNSIGNED NOT NULL DEFAULT 0,
+  `total_reviews_count` INT UNSIGNED NOT NULL DEFAULT 0,
+  `raw_avg_rating` DECIMAL(3, 2) NOT NULL DEFAULT 5.00,
+  `weighted_student_rating` DECIMAL(3, 2) NOT NULL DEFAULT 5.00,
+  `ai_engagement_score` DECIMAL(5, 2) NOT NULL DEFAULT 96.00,
+  `sla_speed_score` DECIMAL(5, 2) NOT NULL DEFAULT 98.00,
+  `mastery_impact_score` DECIMAL(5, 2) NOT NULL DEFAULT 94.00,
+  `composite_merit_score` DECIMAL(5, 2) NOT NULL DEFAULT 96.50,
+  `star_equivalent` DECIMAL(3, 2) NOT NULL DEFAULT 4.90,
+  `reputation_tier` VARCHAR(100) NOT NULL DEFAULT 'معلم نخبوي معتمد 💎',
+  `last_calculated_at` TIMESTAMP NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+  PRIMARY KEY (`teacher_id`),
+  CONSTRAINT `fk_tpm_teacher` FOREIGN KEY (`teacher_id`) REFERENCES `users` (`id`) ON DELETE CASCADE
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
+
 SET FOREIGN_KEY_CHECKS = 1;