<?php
class PreConfigure
{
    public function __construct($argv)
    {
        $uid = $argv[1];
        $gid = $argv[2];

        $ocuser = 'ocuser';
        $ftpusers = $argv[2];

        $webspace = $this->get('WEB___DIR');

        try {
            if ($this->managedMode()) {

                // ensure UTECHAUFTRAG for 'wp-config.php'
                $this->execShell("chown -R $uid:$gid $webspace/wp-config.php");
                $this->execShells(array(
                    "chown -R $uid:$gid $webspace",
                    "find $webspace -type d -exec chmod 755 {} \\;",
                    "find $webspace -type f -exec chmod 644 {} \\;"
                ));

                if (file_exists("$webspace/.htaccess")) {
                    copy("$webspace/.htaccess", "$webspace/.htaccess.ionos");
                    $this->execShell("chown $uid:$gid $webspace/.htaccess.ionos");
                }

                $wpContentFolders = array(
                    "plugins",
                    "mu-plugins",
                    "themes",
                    "uploads",
                    "upgrade",
                    "languages",
                    "ngg",
                    "gallery"
                );

                foreach ($wpContentFolders as $contentFolder) {
                    $folder = "$webspace/wp-content/$contentFolder";

                    if (is_dir($folder)) {
                        $this->execShell("chown -R $uid:$gid $folder");
                    }
                }
            }

            exit(0);

        } catch (Exception $e) {
            echo $e;
            exit(1);
        }
    }

    protected function get($varname)
    {
        $value = getenv($varname);

        if ($value === false) {
            throw new Exception("Undefined variable: $varname");
        }

        return $value;
    }

    protected function managedMode()
    {
        // check if managedMode env var
        if ($this->isManaged() || $this->isSafemode()) {
            return true;
        }

        return false;
    }

    /**
     * Check if installation is a Managed WordPress based on the env vars
     *
     * @return boolean
     */
    protected function isManaged()
    {
        return filter_var($this->get('managedMode'), FILTER_VALIDATE_BOOLEAN);
    }

    /**
     * Check if installation is a Safemode WordPress based on the installation folder
     *
     * @return boolean
     */
    protected function isSafemode()
    {
        // check safemode installation
        if ($this->get('WEB___DIR')) {
            return
                preg_match("/^app\d{5,15}$/", basename($this->get('WEB___DIR'))) ||
                preg_match("/^trial\d{9,15}$/", basename($this->get('WEB___DIR')));
        }

        return false;
    }

    protected function execShell($command, &$print = true)
    {
        exec($command . ' 2>&1', $output, $return_var);

        if ($return_var !== 0) {
            print_r($output);
            throw new Exception("Failed command: $command");
        } else {
            if (true === $print) {
                for ($i = 0; $i < count($output); $i++) {
                    print("$output[$i]\n");
                }
            }
        }
    }

    protected function execShells(array $commands)
    {
        foreach ($commands as $command) {
            $this->execShell($command);
        }
    }
}