<?php

use Zend\Mvc\Application;
use Zend\Stdlib\ArrayUtils;

/**
 * This makes our life easier when dealing with paths. Everything is relative
 * to the application root now.
 */
chdir(dirname(__DIR__));


if (isset($_GET['action']) && $_GET['action'] == "resource") {
    $module = $_GET['module'];
    $path = $_GET['path'];
    if (!ctype_alnum($module))
        die("Module name must consist of only alphanumeric characters");

    $filetype = pathinfo($path, PATHINFO_EXTENSION);
    $mimetypes = array(
        'js' => "text/javascript",
        'css' => "text/css",
        'jpg' => "image/jpeg",
        'jpeg' => "image/jpeg",
        'png' => "image/png"
    );

    if (!isset($mimetypes[$filetype]))
        die(sprintf("Unrecognized file extension '%s'. Supported extensions: %s.", htmlspecialchars($filetype, ENT_QUOTES), implode(", ", array_keys($mimetypes))));

    $currentDir = realpath(".");
    $destination = realpath("module/$module/public/$path");
    if (!$destination)
        die(sprintf("File not found: '%s'!", htmlspecialchars("module/$module/public/$path", ENT_QUOTES)));

    if (substr($destination, 0, strlen($currentDir)) != $currentDir)
            die(sprintf("Access to '%s' is not allowed!", htmlspecialchars($destination, ENT_QUOTES)));

    header(sprintf("Content-type: %s", $mimetypes[$filetype]));
    readfile("module/$module/public/$path", FALSE);
    die();
}

// Decline static file requests back to the PHP built-in webserver
if (php_sapi_name() === 'cli-server') {
    $path = realpath(__DIR__ . parse_url($_SERVER['REQUEST_URI'], PHP_URL_PATH));
    if (__FILE__ !== $path && is_file($path)) {
        return false;
    }
    unset($path);
}

// Composer autoloading
include __DIR__ . '/../vendor/autoload.php';

if (! class_exists(Application::class)) {
    throw new RuntimeException(
        "Unable to load application.\n"
        . "- Type `composer install` if you are developing locally.\n"
        . "- Type `vagrant ssh -c 'composer install'` if you are using Vagrant.\n"
        . "- Type `docker-compose run zf composer install` if you are using Docker.\n"
    );
}

// Retrieve configuration
$appConfig = require __DIR__ . '/../config/application.config.php';
if (file_exists(__DIR__ . '/../config/development.config.php')) {
    $appConfig = ArrayUtils::merge($appConfig, require __DIR__ . '/../config/development.config.php');
}

// Run the application!
Application::init($appConfig)->run();