Implement verified curriculum, video review, watch sessions, ledger safeguards, and remove demo data

backend/app/Controllers/TeacherController.php

@@ -13,12 +13,7 @@ class TeacherController
 {
     private static function ensureTeacherColumns(): void
     {
-        try {
-            Database::query("ALTER TABLE teachers ADD COLUMN grades_taught TEXT DEFAULT NULL");
-        } catch (\Throwable $e) {}
-        try {
-            Database::query("ALTER TABLE teachers ADD COLUMN school_name VARCHAR(255) DEFAULT NULL");
-        } catch (\Throwable $e) {}
+        // Compatibility hook. These columns are installed by migrations.
     }
 
     /**
@@ -108,6 +103,7 @@ class TeacherController
 
         $teacher = Database::selectOne("SELECT * FROM teachers WHERE id = ? LIMIT 1", [$teacherId]);
 
+        $metrics = Database::selectOne('SELECT weighted_student_rating, total_reviews_count FROM teacher_performance_metrics WHERE teacher_id = ? LIMIT 1', [$userId]) ?: [];
         $response->json([
             'status'  => 'success',
             'message' => 'تم توثيق بيانات المعلم والصفوف والمباحث بنجاح!',
@@ -143,14 +139,20 @@ class TeacherController
             [$userId]
         )['total'];
 
+        $metrics = Database::selectOne(
+            'SELECT weighted_student_rating, total_reviews_count FROM teacher_performance_metrics WHERE teacher_id = ? LIMIT 1',
+            [$userId]
+        ) ?: [];
+
         $response->json([
             'status' => 'success',
             'data'   => [
                 'courses_count'  => $coursesCount,
                 'lessons_count'  => $lessonsCount,
                 'students_count' => $studentsCount,
-                'rating'         => 4.9,
-                'completion_avg' => 87.5
+                'rating'         => isset($metrics['weighted_student_rating']) ? (float)$metrics['weighted_student_rating'] : null,
+                'rating_count'   => (int)($metrics['total_reviews_count'] ?? 0),
+                'completion_avg' => null
             ]
         ]);
     }
@@ -413,6 +415,43 @@ class TeacherController
             return;
         }
 
+        // Revenue sharing is being rebuilt around provider-backed ledger entries
+        // and eligible watch minutes. Do not turn course prices, platform sales,
+        // or legacy payout rows into a teacher wallet in the meantime.
+        $courses = Database::select(
+            "SELECT c.id, c.title as course_title, c.price_jod, c.is_published,
+                    COUNT(l.id) as lessons_total
+             FROM courses c
+             LEFT JOIN lessons l ON l.course_id = c.id
+             WHERE c.teacher_id = ?
+             GROUP BY c.id
+             ORDER BY c.id ASC",
+            [$teacherId]
+        );
+        $response->json([
+            'status' => 'success',
+            'data' => [
+                'financial_status' => 'unavailable',
+                'financial_message' => 'الأرباح والسحب متوقفان حتى اكتمال دفتر الاستحقاق وربط مزود الدفع.',
+                'audience_breakdown' => [
+                    'institutional_students' => ['count' => 0],
+                    'marketplace_students' => ['count' => 0],
+                ],
+                'course_price_jod' => null,
+                'gross_revenue_jod' => null,
+                'revenue_split' => null,
+                'wallet' => [
+                    'available_balance_jod' => null,
+                    'pending_clearance_jod' => null,
+                    'total_withdrawn_jod' => null,
+                    'cliq_payout_alias' => '',
+                    'recent_payouts' => [],
+                ],
+                'courses' => $courses,
+            ],
+        ]);
+        return;
+
         // 1. Real Student Counts from Database
         $totalStudents = (int)(Database::selectOne("SELECT COUNT(*) as c FROM students")['c'] ?? 0);