<?php

use Api\ReferralController;
use Api\BaseController;
require 'vendor/autoload.php';

$dotenv = Dotenv\Dotenv::createImmutable(__DIR__);
$dotenv->load();

// Autoload classes
spl_autoload_register(function ($class) {
    $path = 'src/' . str_replace('\\', '/', $class) . '.php';
    if (file_exists($path)) {
        include $path;
    }
});

// Initialize logger and database
$logger = new Core\Logger();
$db = new Core\DB();

if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    $rawData = file_get_contents('php://input');
    $data = json_decode($rawData, true);

    if ($data) {

        $logger->log('Received request data: ' . $rawData);

        $api_list = getApiList();
        $results = [];
        $request_id = null;

        if (isset($data['partner_id'])) {
            $referralController = new ReferralController();
            $request_id = $referralController->handle_partner_id($data);
        }

        if (isset($data['request_id']) && $data['request_id'] !== '' && ctype_digit((string)$data['request_id'])) {
            $request_id = (int)$data['request_id'];
        }

        foreach ($api_list as $api_name) {
            $class_name = 'Api\\' . ucfirst($api_name) . 'Controller';

            if (class_exists($class_name)) {
                $api = new $class_name($request_id);

                $price = $api->handle_request($data);
                $preparedData = $api->prepareData($price);

                $logger->log($class_name . ' response data: ' . json_encode($preparedData));

                $results[] = $preparedData;
            } else {
                $logger->log('Class ' . $class_name . ' not found');
            }
        }

        header('Content-Type: application/json');
        echo json_encode([ 'request_id' => $request_id, 'data' => $results], JSON_UNESCAPED_UNICODE);
    } else {
        $logger->log('No data provided in JSON request', "error");
        echo json_encode(['error' => 'No data provided in JSON request']);
    }
} else {
    $logger->log('Invalid request method', "error");
    echo json_encode(['error' => 'Invalid request method']);
}

function getApiList()
{
    global $db;
    global $logger;
    $result = $db->query("SELECT name FROM partners WHERE active = 1");

    $api_list = [];

        if ($result && $result->num_rows > 0) {
            while ($row = $result->fetch_assoc()) {
                $api_list[] = $row['name'];
            }
        } else {
            $logger->log('No APIs found in the database');
        }

    return $api_list;
}