<?php
/**
 * cron_kazan_adjuster.php
 * يضبط عمولة كازان ويضيف حوافز للسائقين المتواجدين في مناطق ذروة المنافسين
 * 
 * المبدأ:
 * - تقليل العمولة للمنطقة النشطة (مثال: من 15% إلى 10%)
 * - يتم تشغيله كل 10 دقائق
 */

require_once __DIR__ . '/../core/bootstrap.php';
require_once __DIR__ . '/../functions.php';

try {
    $con = Database::get('main');
    $redis = getRedisConnection();
} catch (Exception $e) {
    die("Connection failed: " . $e->getMessage() . "\n");
}

// getRedisConnection() تُعيد المتغير العام $redis فقط، وbootstrap.php يتركه null
// عند فشل الاتصال — فهي لا ترمي استثناءً والـ try/catch أعلاه لا يلتقط شيئاً.
// بدون هذا الفحص كان السكربت ينهار فوراً بـ "call to a member function get() on null".
if (!$redis) {
    error_log('[cron_kazan_adjuster] ABORT: Redis unavailable — Kazan discounts left untouched.');
    die("Redis unavailable — aborting without touching Kazan discounts.\n");
}

$countries = ['SY', 'JO', 'EG', 'IQ'];

foreach ($countries as $country) {
    $surgeKey = "surge:opportunities:{$country}";
    $hotspotsJson = $redis->get($surgeKey);
    $hotspots = $hotspotsJson ? json_decode($hotspotsJson, true) : [];
    
    // In a real scenario, Kazan configs might be stored in a `kazan_commissions` table
    // or applied dynamically at the ride request time. 
    // Here we will save the "active discounted Kazan multiplier" in Redis so the ride logic can apply it instantly.

    $kazanDiscountConfig = [];
    
    if (!empty($hotspots)) {
        foreach ($hotspots as $grid => $multiplier) {
            // If competitor surge is high enough, we lower our Kazan by a factor
            // Standard Kazan is let's say 15%.
            if ($multiplier > 1.2) {
                // Apply a 30% reduction to Kazan Commission for this grid
                $kazanDiscountConfig[$grid] = 0.70; // 70% of standard commission
            } elseif ($multiplier > 1.05) {
                // Apply a 15% reduction
                $kazanDiscountConfig[$grid] = 0.85; 
            }
        }
    }
    
    $kazanKey = "surge:kazan_discounts:{$country}";
    
    if (empty($kazanDiscountConfig)) {
        $redis->del($kazanKey);
        echo "[$country] No active Kazan discounts.\n";
    } else {
        $redis->setex($kazanKey, 1200, json_encode($kazanDiscountConfig));
        echo "[$country] Updated Kazan discounts for " . count($kazanDiscountConfig) . " active hotspots.\n";
    }
}

echo "Done.\n";