<?php

namespace App;

class Router {
    private $routes;
    private $errRoute;

    public function addRoute($pattern, $function) {
        $this->routes['{'.$pattern.'}'] = $function;
    }

    public function addErrorRoute($function) {
        $this->errRoute = $function;
    }

    public function run() {
        foreach ($this->routes as $pattern => $function) {
            if (preg_match($pattern, $_SERVER['REQUEST_URI'], $params)) {
                array_shift($params);
                array_unshift($params, $_SERVER['REQUEST_URI']);

                return call_user_func_array($function, array_values($params));
            }
        }

        return call_user_func($this->errRoute);
    }

    public function loadRoutes () {
        $this->addRoute('^/?(?:\?|$)', function($url) {
            require __DIR__ . '/../views/home.php';
        });

        $this->addRoute('^/add/?(?:\?|$)', function($url) {
            require __DIR__ . '/../views/add.php';
        });

        $this->addRoute('^/alive/?([0-9]+)?/?(?:\?|$)', function($url, $page = 1) {
            require __DIR__ . '/../views/alive.php';
        });

        $this->addRoute('^/all/?([0-9]+)?/?', function($url, $page = 1) {
            require __DIR__ . '/../views/all.php';
        });

        $this->addRoute('^/api/?([^\?/]*)/?([^\?/]*)?/?(?:\?|$)', function($url, $command, $query = "") {
            require __DIR__ . '/../views/api.php';
        });

        $this->addRoute('^/jump/?([^\?/]*)/?(?:\?|$)', function($url, $query = "") {
            require __DIR__ . '/../views/jump.php';
        });

        $this->addRoute('^/autojump/?(.*)/?', function($url, $query = "") {
            require __DIR__ . '/../views/autojump.php';
        });

        $this->addRoute('^/latest/?(?:\?|$)', function($url) {
            require __DIR__ . '/../views/latest.php';
        });

        $this->addRoute('^/search/?([^\?/]*)/?(?:\?|$)', function($url, $query = "") {
            require __DIR__ . '/../views/search.php';
        });

        $this->addRoute('^/hidden/?([0-9]+)?/?(?:\?|$)', function($url, $page = 1) {
            require __DIR__ . '/../views/hidden.php';
        });

        $this->addErrorRoute(function() {
            require __DIR__ . '/../views/404.php';
        });
    }
}