<?php
// Include config.php only if it hasn't been included already
if (!defined('ALLDEBRID_API_KEY')) {
    require __DIR__ . '/config.php';
}

// Function to check and enforce rate limits
function enforce_rate_limits() {
    $current_time = time();

    // Reset counters if the time window has passed
    if ($current_time - $_SESSION['last_request_time'] >= 1) {
        $_SESSION['request_count_second'] = 0;
    }
    if ($current_time - $_SESSION['last_request_time'] >= 60) {
        $_SESSION['request_count_minute'] = 0;
    }

    // Increment counters
    $_SESSION['request_count_second']++;
    $_SESSION['request_count_minute']++;
    $_SESSION['last_request_time'] = $current_time;

    // Check if limits are exceeded
    if ($_SESSION['request_count_second'] > REQUESTS_PER_SECOND_LIMIT) {
        return ['status' => 'error', 'error' => 'Rate limit exceeded: Too many requests per second.'];
    }
    if ($_SESSION['request_count_minute'] > REQUESTS_PER_MINUTE_LIMIT) {
        return ['status' => 'error', 'error' => 'Rate limit exceeded: Too many requests per minute.'];
    }

    return ['status' => 'success'];
}

// Function to send a GET request to AllDebrid API
function alldebrid_api_get_request($endpoint, $params = []) {
    $params['agent'] = 'SquidDebridEU';
    $params['apikey'] = ALLDEBRID_API_KEY;
    $url = ALLDEBRID_API_URL . $endpoint . '?' . http_build_query($params);

    // Use cURL for better error handling
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    $response = curl_exec($ch);

    if (curl_errno($ch)) {
        return ['status' => 'error', 'error' => 'Failed to connect to AllDebrid API: ' . curl_error($ch)];
    }
    curl_close($ch);

    // Log the API response for debugging
    error_log("API Response for endpoint '$endpoint': " . print_r($response, true));

    $data = json_decode($response, true);
    if (json_last_error() !== JSON_ERROR_NONE) {
        return ['status' => 'error', 'error' => 'Invalid API response: ' . json_last_error_msg()];
    }

    return $data;
}

// Function to send a POST request to AllDebrid API
function alldebrid_api_post_request($endpoint, $params = []) {
    $params['agent'] = 'SquidDebridEU';
    $params['apikey'] = ALLDEBRID_API_KEY;
    $url = ALLDEBRID_API_URL . $endpoint;

    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_POST, true);
    curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($params));
    curl_setopt($ch, CURLOPT_HTTPHEADER, [
        'Content-Type: application/json'
    ]);

    $response = curl_exec($ch);

    if (curl_errno($ch)) {
        return ['status' => 'error', 'error' => 'Failed to connect to AllDebrid API: ' . curl_error($ch)];
    }

    curl_close($ch);

    $data = json_decode($response, true);
    if (json_last_error() !== JSON_ERROR_NONE) {
        return ['status' => 'error', 'error' => 'Invalid API response: ' . json_last_error_msg()];
    }

    return $data;
}

// Function to send a POST request to AllDebrid API with correct Content Type for File Uploading
function alldebrid_api_upload_file($endpoint, $filePath) {
    if (!file_exists($filePath)) {
        return ['status' => 'error', 'error' => 'File not found.'];
    }

    $file = new CURLFile($filePath, 'application/x-bittorrent', basename($filePath));
    $params = [
        'agent' => 'SquidDebridEU',
        'apikey' => ALLDEBRID_API_KEY,
        'files[]' => $file
    ];

    $url = ALLDEBRID_API_URL . $endpoint;
    
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_POST, true);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $params);
    curl_setopt($ch, CURLOPT_HTTPHEADER, ['Content-Type: multipart/form-data']);

    $response = curl_exec($ch);

    if (curl_errno($ch)) {
        return ['status' => 'error', 'error' => 'Failed to connect to AllDebrid API: ' . curl_error($ch)];
    }

    curl_close($ch);

    $data = json_decode($response, true);
    if (json_last_error() !== JSON_ERROR_NONE) {
        return ['status' => 'error', 'error' => 'Invalid API response: ' . json_last_error_msg()];
    }

    return $data;
}


// Function to copy an torrent/magnet link
function upload_torrent_magnet($link) {
    // Use the correct parameter name for magnets (e.g., "magnets[]")
    $response = alldebrid_api_get_request('magnet/upload', ['magnets[]' => $link]);
    if ($response['status'] === 'success') {
        return $response['data'];
    }
    return ['status' => 'error', 'error' => $response['error']['message'] ?? 'Failed to upload torrent/magnet.'];
}

// Function to upload a .torrent file
function upload_torrent_file($filePath) {
    $response = alldebrid_api_upload_file('magnet/upload/file', $filePath);
    if ($response['status'] === 'success') {
        return $response['data'];
    }
    return ['status' => 'error', 'error' => $response['error']['message'] ?? 'Failed to upload .torrent file.'];
}

// Function to get torrent/magnet status and file list
function get_torrent_status($id) {
    $response = alldebrid_api_get_request('magnet/status', ['id' => $id]);
    if ($response['status'] === 'success') {
        return $response['data'];
    }
    return ['status' => 'error', 'error' => $response['error']['message'] ?? 'Failed to get torrent status.'];
}

// Function to get supported file hosters
function get_supported_filehosts() {
    $response = alldebrid_api_get_request("hosts");
    $hosts = $response['data']['hosts'];

    // filter out alldebrid and example from the hosts
    unset($hosts['alldebrid'], $hosts['example']);

    if ($response['status'] === 'success' && isset($response['data']['hosts'])) {
        return $hosts;
    } else {
        return [];
    }
}
?>