<?php
// Admin/v2/quality/driver_scorecard.php
require_once __DIR__ . '/../../../connect.php';
// require_once __DIR__ . '/../../../encrypt_decrypt.php';

// التحقق من الصلاحيات
if ($role !== 'admin' && $role !== 'super_admin') {
    jsonError("Unauthorized", 403);
}

$driver_id = filterRequest('driver_id');
if (!$driver_id) {
    jsonError("Missing driver_id", 400);
}

try {
    $scorecard = [];

    // 1. البيانات الأساسية للسائق
    $stmt = $con->prepare("
        SELECT id, first_name, last_name, phone, status, created_at, expiry_date 
        FROM driver 
        WHERE id = ?
    ");
    $stmt->execute([$driver_id]);
    $driver = $stmt->fetch(PDO::FETCH_ASSOC);

    if (!$driver) {
        jsonError("Driver not found", 404);
    }

    // فك التشفير للبيانات الأساسية
    if (!empty($driver['first_name'])) $driver['first_name'] = $encryptionHelper->decryptData($driver['first_name']) ?: $driver['first_name'];
    if (!empty($driver['last_name'])) $driver['last_name'] = $encryptionHelper->decryptData($driver['last_name']) ?: $driver['last_name'];
    if (!empty($driver['phone'])) $driver['phone'] = $encryptionHelper->decryptData($driver['phone']) ?: $driver['phone'];
    
    $scorecard['basic_info'] = $driver;

    // 2. إحصائيات الرحلات (نسبة الإنجاز والإلغاء)
    $stmt = $con->prepare("
        SELECT 
            COUNT(*) as total_rides,
            SUM(CASE WHEN status = 'Finished' THEN 1 ELSE 0 END) as completed_rides,
            SUM(CASE WHEN status = 'cancel' AND cancel_by = 'driver' THEN 1 ELSE 0 END) as driver_cancellations,
            SUM(CASE WHEN status = 'cancel' AND cancel_by = 'passenger' THEN 1 ELSE 0 END) as passenger_cancellations
        FROM ride 
        WHERE driver_id = ?
    ");
    $stmt->execute([$driver_id]);
    $rides = $stmt->fetch(PDO::FETCH_ASSOC);
    
    // حساب نسبة الإنجاز
    $total = (int)$rides['total_rides'];
    $completed = (int)$rides['completed_rides'];
    $rides['completion_rate'] = $total > 0 ? round(($completed / $total) * 100, 2) : 0;
    
    $scorecard['rides_stats'] = $rides;

    // 3. التقييمات
    $stmt = $con->prepare("SELECT IFNULL(AVG(rating_driver), 0) as avg_rating FROM ride WHERE driver_id = ? AND rating_driver > 0");
    $stmt->execute([$driver_id]);
    $scorecard['rating'] = round($stmt->fetchColumn(), 2);

    // 4. تحليل السلوك (Behavior)
    // نستخدم جدول driver_behavior لجمع المتوسطات
    $stmt = $con->prepare("
        SELECT 
            IFNULL(AVG(behavior_score), 100) as avg_behavior_score,
            IFNULL(AVG(max_speed), 0) as avg_max_speed,
            IFNULL(SUM(hard_brakes), 0) as total_hard_brakes,
            IFNULL(SUM(rapid_accelerations), 0) as total_rapid_accel
        FROM driver_behavior 
        WHERE driver_id = ?
    ");
    $stmt->execute([$driver_id]);
    $scorecard['behavior'] = $stmt->fetch(PDO::FETCH_ASSOC);

    // 5. الشكاوى (Complaints)
    $stmt = $con->prepare("
        SELECT 
            COUNT(*) as total_complaints,
            SUM(CASE WHEN statusComplaint = 'Open' THEN 1 ELSE 0 END) as open_complaints,
            SUM(CASE WHEN statusComplaint = 'Resolved' THEN 1 ELSE 0 END) as resolved_complaints
        FROM complaint 
        WHERE driver_id = ?
    ");
    $stmt->execute([$driver_id]);
    $scorecard['complaints'] = $stmt->fetch(PDO::FETCH_ASSOC);

    // 6. تقييم شامل (Overall Score) من 100
    // وزن التقييم: 40% إنجاز رحلات، 30% تقييم ركاب (محول لـ 100)، 30% سلوك قيادة، وخصم للشكاوى
    $completion_score = $rides['completion_rate'] * 0.4;
    $rating_score = ($scorecard['rating'] / 5) * 100 * 0.3;
    $behavior_score = $scorecard['behavior']['avg_behavior_score'] * 0.3;
    $complaint_penalty = $scorecard['complaints']['total_complaints'] * 5; // خصم 5 نقاط عن كل شكوى

    $overall = $completion_score + $rating_score + $behavior_score - $complaint_penalty;
    $scorecard['overall_score'] = max(0, min(100, round($overall, 1)));

    jsonSuccess($scorecard);

} catch (Exception $e) {
    error_log("[driver_scorecard.php] " . $e->getMessage());
    jsonError("Failed to fetch scorecard. Please try again later.", 500);
}
?>