<?php

use WP_CLI\Utils;

class Server_Command extends WP_CLI_Command {

    /**
     * Launches PHP's built-in web server for a specific WordPress installation.
     *
     * Uses `php -S` to launch a web server serving the WordPress webroot.
     * <http://php.net/manual/en/features.commandline.webserver.php>
     *
     * Importantly, PHP's built-in web server doesn't support `.htaccess` files.
     * If this is a requirement, please use a more advanced web server.
     *
     * ## OPTIONS
     *
     * [--host=<host>]
     * : The hostname to bind the server to.
     * ---
     * default: localhost
     * ---
     *
     * [--port=<port>]
     * : The port number to bind the server to.
     * ---
     * default: 8080
     * ---
     *
     * [--docroot=<path>]
     * : The path to use as the document root. If the path global parameter is
     * set, the default value is it.
     *
     * [--config=<file>]
     * : Configure the server with a specific .ini file.
     *
     * ## EXAMPLES
     *
     *     # Make the instance available on any address (with port 8080)
     *     $ wp server --host=0.0.0.0
     *     PHP 5.6.9 Development Server started at Tue May 24 01:27:11 2016
     *     Listening on http://0.0.0.0:8080
     *     Document root is /
     *     Press Ctrl-C to quit.
     *
     *     # Run on port 80 (for multisite)
     *     $ wp server --host=localhost.localdomain --port=80
     *     PHP 5.6.9 Development Server started at Tue May 24 01:30:06 2016
     *     Listening on http://localhost1.localdomain1:80
     *     Document root is /
     *     Press Ctrl-C to quit.
     *
     *     # Configure the server with a specific .ini file
     *     $ wp server --config=development.ini
     *     PHP 7.0.9 Development Server started at Mon Aug 22 12:09:04 2016
     *     Listening on http://localhost:8080
     *     Document root is /
     *     Press Ctrl-C to quit.
     *
     * @when before_wp_load
     */
    public function __invoke( $_, $assoc_args ) {
        $defaults   = array(
            'host'    => 'localhost',
            'port'    => 8080,
            'docroot' => ! is_null( WP_CLI::get_runner()->config['path'] ) ? WP_CLI::get_runner()->config['path'] : false,
            'config'  => get_cfg_var( 'cfg_file_path' ),
        );
        $assoc_args = array_merge( $defaults, $assoc_args );

        $docroot = $assoc_args['docroot'];

        if ( ! $docroot ) {
            $config_path = WP_CLI::get_runner()->project_config_path;

            if ( ! $config_path ) {
                $docroot = ABSPATH;
            } else {
                $docroot = dirname( $config_path );
            }
        }

        // Get the path to the router file
        $command_root = Utils\phar_safe_path( dirname( __DIR__ ) );
        $router_path  = $command_root . '/router.php';
        if ( ! file_exists( $router_path ) ) {
            WP_CLI::error( "Couldn't find router.php" );
        }
        $cmd = Utils\esc_cmd(
            '%s -S %s -t %s -c %s %s',
            WP_CLI::get_php_binary(),
            $assoc_args['host'] . ':' . $assoc_args['port'],
            $docroot,
            $assoc_args['config'],
            Utils\extract_from_phar( $router_path )
        );

        $descriptors = array( STDIN, STDOUT, STDERR );

        // https://bugs.php.net/bug.php?id=60181
        $options = array();
        if ( Utils\is_windows() ) {
            $options['bypass_shell'] = true;
        }

        exit( proc_close( proc_open( $cmd, $descriptors, $pipes, null, null, $options ) ) );
    }
}