<?php
header('Content-Type: application/json; charset=utf-8');
require_once __DIR__ . '/../../connect.php';

$lat = filterRequest('passenger_lat') ?: filterRequest('lat');
$lng = filterRequest('passenger_lng') ?: filterRequest('lng');
$country = filterRequest('country') ?: filterRequest('country_code');
$distance = (float)(filterRequest('distance') ?: 0);
$siroPrice = (float)(filterRequest('siro_price') ?: 0);

if (!$lat || !$lng || !$country) {
    echo json_encode(["status" => "error", "message" => "Missing parameters"]);
    exit;
}

$lat = (float)$lat;
$lng = (float)$lng;
$countryCode = strtoupper($country);
if ($countryCode == 'JORDAN') $countryCode = 'JO';
if ($countryCode == 'SYRIA') $countryCode = 'SY';
if ($countryCode == 'EGYPT') $countryCode = 'EG';

$avgPricePerKm = 0;
$topComp = 'TaxiF'; // Default

try {
    $redis = getRedisConnection();
    $cacheJson = $redis->get('siro:cache:pricing:grids');
    if ($cacheJson) {
        $cacheData = json_decode($cacheJson, true);
        if ($cacheData && isset($cacheData['grids'])) {
            $gridSize = 0.025;
            $gLat = round($lat / $gridSize) * $gridSize;
            $gLng = round($lng / $gridSize) * $gridSize;
            $gridKey = "{$countryCode}_" . number_format($gLat, 3) . "_" . number_format($gLng, 3);
            
            $grids = $cacheData['grids'];
            if (isset($grids[$gridKey])) {
                $avgPricePerKm = (float)$grids[$gridKey]['avg_price'];
                $topComp = $grids[$gridKey]['top_competitor'] ?? 'TaxiF';
            } else {
                $fallbackKey = "{$countryCode}_FALLBACK";
                if (isset($grids[$fallbackKey])) {
                    $avgPricePerKm = (float)$grids[$fallbackKey]['avg_price'];
                    $topComp = $grids[$fallbackKey]['top_competitor'] ?? 'TaxiF';
                }
            }
        }
    }
} catch (Exception $e) {
    // Continue with defaults if Redis fails
}

// If we couldn't get a price from Redis, use a smart default based on country
if ($avgPricePerKm <= 0) {
    if ($countryCode === 'JO') {
        $avgPricePerKm = 0.35;
        $topComp = 'TaxiF';
    } else if ($countryCode === 'SY') {
        $avgPricePerKm = 4000;
        $topComp = 'Yango';
    } else if ($countryCode === 'EG') {
        $avgPricePerKm = 15;
        $topComp = 'inDrive';
    }
}

// Calculate the competitor's total price based on distance and average market per-km rate
$competitorTotalPrice = round($distance * $avgPricePerKm, 2);

// Make sure competitor is slightly higher than us for psychological effect 
// if their raw math somehow ended up lower due to straight per-km multiplication
if ($siroPrice > 0 && $competitorTotalPrice <= $siroPrice) {
    // Force a dynamic difference based on country
    $multiplier = ($countryCode === 'JO') ? 1.15 : 1.10;
    $competitorTotalPrice = round($siroPrice * $multiplier, 2);
}

// Calculate savings
$savingsPct = 0;
if ($competitorTotalPrice > 0 && $siroPrice < $competitorTotalPrice) {
    $savingsPct = (($competitorTotalPrice - $siroPrice) / $competitorTotalPrice) * 100;
}

// Format the labels
$compNameAr = match(strtolower($topComp)) {
    'careem'  => 'كريم',
    'uber'    => 'أوبر',
    'yallago' => 'يلا غو',
    'jenny'   => 'جيني',
    'taxif'   => 'تكسي إف',
    'com.taxif.passenger' => 'تكسي إف',
    'indrive' => 'إن درايف',
    'yango'   => 'يانغو',
    'petra'   => 'بترا رايد',
    'petra ride' => 'بترا رايد',
    'gojo'    => 'جو جو',
    'didi'    => 'ديدي',
    'zakin'   => 'زاكن',
    'tofaddal'=> 'تفضل',
    default   => $topComp
};

$savingsLabel = "أوفر بـ " . number_format($savingsPct, 1) . "% من $compNameAr ⚡";

$siroCommissionRate = 0.14; // Default 14% commission
if ($countryCode === 'JO') $siroCommissionRate = 0.14;
$extraEarnings = $siroPrice * $siroCommissionRate; 
$driverExtraLabel = "رحلة مربحة! تكسب أكثر مقارنة بـ $compNameAr 💰";

// Return exactly what Dart expects in the root JSON
echo json_encode([
    "status" => "success",
    "has_competitor_data" => true,
    "competitor_avg_price" => $competitorTotalPrice,
    "top_competitor" => $topComp,
    "savings_percent" => $savingsPct,
    "savings_label" => $savingsLabel,
    "driver_extra_amount" => round($extraEarnings, 2),
    "driver_extra_label" => $driverExtraLabel
]);
?>