<?php

class install {

	/**
	 * declare constant variables
	 */
	const app_name = 'install';
	const app_uuid = '75507e6e-891e-11e5-af63-feff819cdc9f';

	/**
	 * declare public variables
	 */
	public $message;
	public $database_host;
	public $database_port;
	public $database_name;
	public $database_username;
	public $database_password;

	/**
	 * called when the object is created
	 */
	public function __construct() {

	}

	/**
	 * Used to create the config.conf file using paths based on the operating system.
	 *
	 * @return boolean true if the configuration file is successfully created, false otherwise.
	 */
	public function config() {

		//set the default config file location
		$os = strtoupper(substr(PHP_OS, 0, 3));
		switch ($os) {
			case "FRE":
			case "OPE":
			case "NET":
			case "BSD":
				$config_path   = '/usr/local/etc/fusionpbx';
				$config_file   = $config_path . '/config.conf';
				$document_root = '/usr/local/www/fusionpbx';

				$conf_dir       = '/usr/local/etc/freeswitch';
				$sounds_dir     = '/usr/share/freeswitch/sounds';
				$database_dir   = '/var/lib/freeswitch/db';
				$recordings_dir = '/var/lib/freeswitch/recordings';
				$storage_dir    = '/var/lib/freeswitch/storage';
				$voicemail_dir  = '/var/lib/freeswitch/storage/voicemail';
				$scripts_dir    = '/usr/share/freeswitch/scripts';
				$php_dir        = PHP_BINDIR;
				$cache_location = '/var/cache/fusionpbx';
				break;
			case "LIN":
				$config_path   = '/etc/fusionpbx/';
				$config_file   = $config_path . '/config.conf';
				$document_root = '/var/www/fusionpbx';

				$conf_dir       = '/etc/freeswitch';
				$sounds_dir     = '/usr/share/freeswitch/sounds';
				$database_dir   = '/var/lib/freeswitch/db';
				$recordings_dir = '/var/lib/freeswitch/recordings';
				$storage_dir    = '/var/lib/freeswitch/storage';
				$voicemail_dir  = '/var/lib/freeswitch/storage/voicemail';
				$scripts_dir    = '/usr/share/freeswitch/scripts';
				$php_dir        = PHP_BINDIR;
				$cache_location = '/var/cache/fusionpbx';
				break;
			case "WIN":
				$system_drive  = getenv('SystemDrive');
				$config_path   = $system_drive . DIRECTORY_SEPARATOR . 'ProgramData' . DIRECTORY_SEPARATOR . 'fusionpbx';
				$config_file   = $config_path . DIRECTORY_SEPARATOR . 'config.conf';
				$document_root = $_SERVER["DOCUMENT_ROOT"];

				$conf_dir       = $_SERVER['ProgramFiles'] . DIRECTORY_SEPARATOR . 'freeswitch' . DIRECTORY_SEPARATOR . 'conf';
				$sounds_dir     = $_SERVER['ProgramFiles'] . DIRECTORY_SEPARATOR . 'freeswitch' . DIRECTORY_SEPARATOR . 'sounds';
				$database_dir   = $_SERVER['ProgramFiles'] . DIRECTORY_SEPARATOR . 'freeswitch' . DIRECTORY_SEPARATOR . 'db';
				$recordings_dir = $_SERVER['ProgramFiles'] . DIRECTORY_SEPARATOR . 'freeswitch' . DIRECTORY_SEPARATOR . 'recordings';
				$storage_dir    = $_SERVER['ProgramFiles'] . DIRECTORY_SEPARATOR . 'freeswitch' . DIRECTORY_SEPARATOR . 'storage';
				$voicemail_dir  = $_SERVER['ProgramFiles'] . DIRECTORY_SEPARATOR . 'freeswitch' . DIRECTORY_SEPARATOR . 'voicemail';
				$scripts_dir    = $_SERVER['ProgramFiles'] . DIRECTORY_SEPARATOR . 'freeswitch' . DIRECTORY_SEPARATOR . 'scripts';
				$php_dir        = dirname(PHP_BINARY);
				$cache_location = dirname($_SERVER['DOCUMENT_ROOT']) . DIRECTORY_SEPARATOR . 'cache' . DIRECTORY_SEPARATOR . 'fusionpbx';
				break;
		}

		//end the script if the config path is not set
		if (!isset($config_path)) {
			$this->message = "Config file path not found\n";
			return false;
		}

		//config directory is not writable
		if (!is_writable($config_path)) {
			$this->message = "Check permissions " . $config_path . " must be writable.\n";
			return false;
		}

		//make the config directory
		if (isset($config_path)) {
			system('mkdir -p ' . $config_path);
		}

		//build the config file
		$conf = "\n";
		$conf .= "#database system settings\n";
		$conf .= "database.0.type = pgsql\n";
		$conf .= "database.0.host = " . $this->database_host . "\n";
		$conf .= "database.0.port = " . $this->database_port . "\n";
		$conf .= "database.0.sslmode = prefer\n";
		$conf .= "database.0.name = " . $this->database_name . "\n";
		$conf .= "database.0.username = " . $this->database_username . "\n";
		$conf .= "database.0.password = " . $this->database_password . "\n";
		$conf .= "\n";
		$conf .= "#database switch settings\n";
		$conf .= "database.1.type = sqlite\n";
		$conf .= "database.1.path = " . $database_dir . "\n";
		$conf .= "database.1.name = core.db\n";
		//$conf .= "database.1.backend.base64 = \n";
		$conf .= "\n";
		$conf .= "#general settings\n";
		$conf .= "document.root = " . $document_root . "\n";
		$conf .= "project.path =\n";
		$conf .= "temp.dir = /tmp\n";
		$conf .= "php.dir = " . $php_dir . "\n";
		$conf .= "php.bin = php\n";
		$conf .= "\n";
		$conf .= "#session settings\n";
		$conf .= "session.cookie_httponly = true\n";
		$conf .= "session.cookie_secure = true\n";
		$conf .= "session.cookie_samesite = Lax\n";
		$conf .= "\n";
		$conf .= "#cache settings\n";
		$conf .= "cache.method = file\n";
		$conf .= "cache.location = " . $cache_location . "\n";
		$conf .= "cache.settings = true\n";
		$conf .= "\n";
		$conf .= "#switch settings\n";
		$conf .= "switch.conf.dir = " . $conf_dir . "\n";
		$conf .= "switch.sounds.dir = " . $sounds_dir . "\n";
		$conf .= "switch.database.dir = " . $database_dir . "\n";
		$conf .= "switch.recordings.dir = " . $recordings_dir . "\n";
		$conf .= "switch.storage.dir = " . $storage_dir . "\n";
		$conf .= "switch.voicemail.dir = " . $voicemail_dir . "\n";
		$conf .= "switch.scripts.dir = " . $scripts_dir . "\n";
		$conf .= "\n";
		$conf .= "#switch xml handler\n";
		$conf .= "xml_handler.fs_path = false\n";
		$conf .= "xml_handler.reg_as_number_alias = false\n";
		$conf .= "xml_handler.number_as_presence_id = true\n";
		$conf .= "\n";
		$conf .= "#error reporting options: user,dev,all\n";
		$conf .= "error.reporting = user\n";

		//write the config file
		$file_handle = fopen($config_file, "w");
		if (!$file_handle) {
			return;
		}
		fwrite($file_handle, $conf);
		fclose($file_handle);

		//if the config.conf file was saved return true
		if (file_exists($config_file)) {
			return true;
		} else {
			return false;
		}

	}

}