<?php
    /* utils> */
    function console_log( $data ){
        echo '<script>';
        echo 'console.log('. json_encode( $data ) .')';
        echo '</script>';
    }
    /* <utils */

    /* cookie> */
    $favoriteLeagues = @json_decode($_COOKIE["FAVORITE_LEAGUES"]);
    $preFavoriteFixtures = @json_decode($_COOKIE["FAVORITE_FIXTURES"]);
    $preFavoriteTeams = @json_decode($_COOKIE["FAVORITE_TEAMS"]);
    $favoriteFixtures = $preFavoriteFixtures ? $preFavoriteFixtures : [];
    $favoriteTeams = $preFavoriteTeams ? $preFavoriteTeams : [];
    /* <cookie */

    /* default top leagues> */
    if (!$favoriteLeagues) {
        $favoriteLeagues = array(2, 5, 8, 72, 82, 301, 384, 564, 732, 1328);
        setcookie('FAVORITE_LEAGUES', json_encode($favoriteLeagues), null, "/");
    }
    /* <default top leagues */

    if(@strpos($_SERVER['SERVER_SOFTWARE'], 'Google App Engine') !== false) {
        $debug = false;
    } else {
        $debug = true;
    }

    require_once 'vendor/autoload.php';

    Twig_Autoloader::register();
    $loader = new Twig_Loader_Filesystem('src/templates');

    if($debug) {
        if(isset($_REQUEST['api_debug'])) {
            $api_base = 'http://35.195.34.69';
        } else {
            $api_base = 'https://api-v1-dot-scorengas.appspot.com';
        }
        $twig_config = [
            'cache' => false,
            'debug' => true,
            'auto_reload' => true
        ];
    } else {
        if (isset($_SERVER['HTTP_AUTHORIZATION'])) {
            $auth_string = substr($_SERVER['HTTP_AUTHORIZATION'], 6);            // removing 'Basic ' from the string
            $auth_string = base64_decode($auth_string);                                   // decoding string with user:password
            list($_SERVER['PHP_AUTH_USER'], $_SERVER['PHP_AUTH_PW']) = explode(':', $auth_string);
        }
        if(@$_SERVER['PHP_AUTH_USER'] != 'test' or @$_SERVER['PHP_AUTH_PW'] != 'test') {
            header('WWW-Authenticate: Basic realm="Closed"');
            header('HTTP/1.0 401 Unauthorized');
            exit;
        }
        $api_base = 'https://api-v1.scorenga.co.uk';
        $twig_config = [
//            'cache' => 'cache/twig'
            'cache' => false
        ];
    }

    $twig = new Twig_Environment($loader, $twig_config);
    /* php consts> */
    $twig->addGlobal('API_BASE', $api_base);
    $twig->addGlobal('DEBUG', $debug);
    $twig->addGlobal('FAVORITE_LEAGUES', $favoriteLeagues);
    $twig->addGlobal('FAVORITE_FIXTURES_COUNT', count($favoriteFixtures));
    $twig->addGlobal('FAVORITE_TEAMS_COUNT', count($favoriteTeams));
    $twig->addGlobal('SERVER_DATE_TIME', 'test');
    $twig->addGlobal('regions', json_decode(file_get_contents('data/regions.json')));
    /* <php consts */

    if($left_regions_block = @file_get_contents('cache/blocks/left_regions.html')) {
        $twig->addGlobal('left_regions_block', $left_regions_block);
    }

    class Router {
        static $_routes = [];
        static $_404_route = null;

        static function add_route($pattern, $callback) {
            $pattern = '#^' . str_replace('/', '\/', $pattern) . '$#';
            self::$_routes[$pattern] = $callback;
        }

        static function add_404($callback) {
            self::$_404_route = $callback;
        }

        static function run($url) {
            foreach(self::$_routes as $pattern => $callback) {
                if (preg_match($pattern, $url, $params)) {
                    array_shift($params);
                    return call_user_func_array($callback, array_values($params));
                }
            }
            if(self::$_404_route) {
                return call_user_func(self::$_404_route);
            }
            return http_response_code(404);
        }

        static function render($template, $context=[]) {
            global $twig;
            $twig->loadTemplate($template)->display($context);
        }

        static function api_get($endpoint, $params=[]) {
            global $api_base;
            $context_options=array(
                "ssl"=>array(
                    "verify_peer"=>false,
                    "verify_peer_name"=>false,
                ),
            );
            $context = stream_context_create($context_options);
            return json_decode(
                file_get_contents("$api_base/$endpoint?" . implode('&', $params), null, $context)
            );
        }
    }

    Router::add_route('/', function() {
        Router::render('pages/index.html');
    });

    Router::add_route('/match/(\d+)(?:|/(h2h))', function($fixture_id, $h2h=null) {
        $url = "fixtures/$fixture_id";
        $params = (array) Router::api_get($url);
        $params['is_h2h'] = true;
        Router::render('pages/match.html', $params);
    });

    Router::add_route('/team/[^/]+/(\d+)(|/results|/fixtures|/squad)', function($team_id, $section=null) {
        Router::render('pages/team.html', [
            'team' => ['id' => $team_id]
        ]);
    });

    Router::add_route('/player/[^/]+/(\d+)', function($player_id) {
        Router::render('pages/player.html', [
            'player' => ['id' => $player_id],
        ]);
    });

    Router::add_route('/league/[^/]+/[^/]+/(\d+)(|/|/results|/fixtures|/standings|/standings/(\d+)|/teams|/archive)', function($season_id, $section=null, $stage_id=null) {
        $SECTIONS_MAP = [
            '' => 'overview',
            '/' => 'overview',
            '/results' => 'results',
            '/fixtures' => 'upcoming',
            '/standings' => 'standings',
            '/teams' => 'teams',
            '/archive' => 'seasons'
        ];
        $part = $SECTIONS_MAP[$section];
        $url = "leagues/?part=$part&season_id=$season_id";
        if($stage_id) {
            $url .= "&stage_id=$stage_id";
        }
        Router::render('pages/league.html', [
            'data' => (array) Router::api_get($url),
            'tab' => $part
        ]);
    });

    Router::add_route('/standings/(\d+)(?:|/(\d+))', function($season_id, $stage_id=null) {
        Router::render('pages/standing.html', [
            'season' => ['id' => $season_id],
            'stage' => ['id' => $stage_id]
        ]);
    });

    Router::add_route('/top500/(draws|yellow-cards|over-under|referees|transfers)', function($section) {
        Router::render('pages/standing.html', [
            'top' => ['type' => $section]
        ]);
    });

    /* error */
    Router::add_route('/error+(?:|/(.*))', function() {
        Router::render('pages/simple/500.html');
    });

    /* политика куки */
    Router::add_route('/privacy-policy+(?:|/(.*))', function() {
        Router::render('pages/simple/privacy_policy.html', [
            'HIDE_LEFT_BLOCK' => true,
            'HIDE_RIGHT_BLOCK' => true
        ]);
    });

    /* terms_and_conditions */
    Router::add_route('/terms-and-conditions+(?:|/(.*))', function() {
        Router::render('pages/simple/terms_and_conditions.html', [
            'HIDE_LEFT_BLOCK' => true,
            'HIDE_RIGHT_BLOCK' => true
        ]);
    });

    /* cookie_policy */
    Router::add_route('/cookie-policy+(?:|/(.*))', function() {
        Router::render('pages/simple/cookie_policy.html', [
            'HIDE_LEFT_BLOCK' => true,
            'HIDE_RIGHT_BLOCK' => true
        ]);
    });

    /* contacts */
    Router::add_route('/contacts+(?:|/(.*))', function() {
        Router::render('pages/simple/contacts.html', [
            'HIDE_LEFT_BLOCK' => true,
            'HIDE_RIGHT_BLOCK' => true
        ]);
    });

    /* wildcard */
    Router::add_route('/[^/]+(?:|/(.*))', function() {
        Router::render('pages/simple/404.html');
    });

    Router::run(parse_url($_SERVER['REQUEST_URI'], PHP_URL_PATH));