<?php
// =========================================================
// backend/bot/recalculate_all_distances.php
// One-off script to recalculate distance_km and duration_min 
// for ALL rows in the scraped_competitor_prices table using Intaleq Maps.
// =========================================================

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

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

echo "Fetching ALL rows to recalculate distance and duration...\n";

// Get all valid rows
$stmt = $con->prepare("
    SELECT id, start_lat, start_lng, end_lat, end_lng, country_code, price_amount 
    FROM scraped_competitor_prices 
    WHERE start_lat IS NOT NULL 
    AND start_lng IS NOT NULL
");
$stmt->execute();
$rows = $stmt->fetchAll(PDO::FETCH_ASSOC);

if (!$rows || count($rows) === 0) {
    echo "No rows found.\n";
    exit(0);
}

echo "Found " . count($rows) . " rows to update. Processing...\n";

$updateStmt = $con->prepare("
    UPDATE scraped_competitor_prices 
    SET duration_min = :duration_min, 
        distance_km = :distance_km,
        price_per_km = :price_per_km
    WHERE id = :id
");

$successCount = 0;
$failCount = 0;

foreach ($rows as $index => $row) {
    $id = $row['id'];
    $countryCode = $row['country_code'] ?? 'JO';
    $price = (float)$row['price_amount'];
    
    // Call Intaleq Maps (OSRM API)
    $routeInfo = getOsrmRouteDetails($row['start_lat'], $row['start_lng'], $row['end_lat'], $row['end_lng'], $countryCode);
    
    if ($routeInfo && isset($routeInfo['duration_min']) && isset($routeInfo['distance_km'])) {
        $dist = (float)$routeInfo['distance_km'];
        $dur = (int)round($routeInfo['duration_min']);
        $pricePerKm = $dist > 0 ? ($price / $dist) : 0;

        $updateStmt->execute([
            ':duration_min' => $dur,
            ':distance_km'  => $dist,
            ':price_per_km' => $pricePerKm,
            ':id'           => $id
        ]);
        $successCount++;
        echo "Row $id: Distance {$dist}km, Duration {$dur}min, Price/Km {$pricePerKm} [SUCCESS]\n";
    } else {
        $failCount++;
        echo "Row $id: Failed to fetch route details.\n";
    }
    
    // Small sleep to avoid hitting API rate limits too hard (100ms)
    usleep(100000); 
}

echo "======================================\n";
echo "Completed processing " . count($rows) . " rows.\n";
echo "Success: $successCount\n";
echo "Failed:  $failCount\n";