<?php

/**

 * @package setup

 */

class modInstallSettings {

    public $install = null;

    public $config = array();

    public $fileName = '';

    public $settings = array();



    function __construct(modInstall &$install,array $config = array()) {

        $this->install =& $install;

        $this->config = array_merge(array(),$config);



        $this->fileName = $this->getCachePath().'settings.cache.php';

        $this->load();

    }



    protected function getCachePath() {

        return MODX_CORE_PATH . 'cache/' . (MODX_CONFIG_KEY == 'config' ? '' : MODX_CONFIG_KEY . '/') . 'setup/';

    }



    protected function rebuildDSN() {

        if (array_key_exists('database_type', $this->settings)) {

            switch ($this->settings['database_type']) {

                case 'sqlsrv':

                    $database_dsn = "{$this->settings['database_type']}:server={$this->settings['database_server']};database={$this->settings['dbase']}";

                    $server_dsn = "{$this->settings['database_type']}:server={$this->settings['database_server']}";

                    break;

                case 'mysql':

                    $database_dsn = "{$this->settings['database_type']}:host={$this->settings['database_server']};dbname={$this->settings['dbase']};charset={$this->settings['database_connection_charset']}";

                    $server_dsn = "{$this->settings['database_type']}:host={$this->settings['database_server']};charset={$this->settings['database_connection_charset']}";

                    break;

                default:

                    $database_dsn = '';

                    $server_dsn = '';

                    break;

            }

            $this->settings['database_dsn'] = $database_dsn;

            $this->settings['server_dsn'] = $server_dsn;

        }

    }



    public function set($k,$v) {

        $this->settings[$k] = $v;

        if (in_array($k, array('database_type', 'database_server', 'dbase', 'database_connection_charset'))) {

            $this->rebuildDSN();

        }

    }

    public function get($k,$default = null) {

        if (in_array($k, array('database_dsn', 'server_dsn'))) {

            $this->rebuildDSN();

        }

        return isset($this->settings[$k]) ? $this->settings[$k] : $default;

    }

    public function load() {

        if (file_exists($this->fileName)) {

            $this->settings = include $this->fileName;

            if (empty($this->settings)) {

                $this->restart();

            }

        }

    }

    public function check() {

        $this->load();

        if (empty($this->settings)) {

            $this->restart();

        }

    }

    public function restart() {

        $this->erase();

        header('Location: ' . MODX_SETUP_URL.'?restarted=1');

        exit();

    }

    public function delete($k) {

        unset($this->settings[$k]);

    }

    public function store(array $settings = array(),$expire = 900) {

        $this->settings = array_merge($this->settings,$settings);

        $this->rebuildDSN();

        $written = false;



        if ($file= @ fopen($this->fileName,'wb')) {

            $expirationTS= $expire ? time() + $expire : time();

            $expireContent= 'if(time() > ' . $expirationTS . '){return array();}';

            $content = '<?php ' . $expireContent . ' return ' . var_export($this->settings, true) . ';';



            $written= @ fwrite($file, $content);

            @ fclose($file);

        }

        return $written;

    }



    public function erase() {

        if (file_exists($this->fileName)) {

            @unlink($this->fileName);

        }

    }



    public function fetch() {

        return $this->settings;

    }

}