<?php
include_once("logger.php");
include_once("utils.php");
$base_path = realpath(__DIR__ . DIRECTORY_SEPARATOR . "..");

class ConfigParser {
	private $config = Array();
	private $defaults = '
		[main]
		debug = TRUE
		cache_filename = /tmp/provision_sccp_resolver.cache
		default_language = English_United_States
		log_type = SYSLOG
		log_level = LOG_INFO
		;log_filename = provision.log
		auto_generate_settings = FALSE
		auto_sign = FALSE
		auto_encrypt = FALSE

		[security]
		cert_ca = NULL
		cert_priv = NULL
		cert_pub = NULL
		hash = NULL

		[subdirs]
		etc = ../etc
		tftproot = tftpboot
		firmware = firmware
		settings = settings
		wallpapers = wallpapers
		ringtones = ringtones
		locales = locales
		countries = countries
		languages = languages

		[settings]
		sshUserId = cisco
		sshPassword = cisco
		ipAddress = ipv4|ipv6
		datetime.template = M/D/YA
		datetime.timezone = W. Europe Standard/Daylight Time
		datetime.ipaddress = 10.x.x.x
		datetime.mode = Unicast
		members.myhost.hostname = myhost.domain.com
		members.myhost.ipv4 = 10.x.x.x
		members.myhost.ipv6 = 2001:470::x:x
		members.myhost.port = 2000
		;srts.
		;common.
		;vendor.
		locale.country = United_States
		locale.language = English_United_States
		locale.langcode = en_US
		locale.charset = utf-8
		urls.security = FALSE
		urls.information = NULL
		urls.authentication = NULL
		urls.services = NULL
		urls.direcory = NULL
		urls.messages = NULL
		urls.proxyserver = NULL
		;vpn.
		;phoneservices.
	';

	function __construct($base_path, $config_file) {
		# Merge config
		$default_config = $this->parse_multi_ini_string($this->defaults,true,INI_SCANNER_TYPED);
		$ini_config = $this->parse_multi_ini_file("$base_path/$config_file", true, INI_SCANNER_TYPED);
		if (!empty($ini_config)) {
			$config = array_merge($default_config, $ini_config);
		}
		$config['main']['base_path'] = $base_path;
		$config['main']['tftproot'] = (!empty($config['main']['tftproot'])) ? $base_path . "tftpboot" : '/tftpboot';
		$config['subdirs'] = $this->replaceSubdirTreeStructure($config['subdirs']);
		$this->config = $config;
	}
	
	private $tree_structure = Array(
		'etc' => array('parent' => NULL, "strip" => true),
		'tftproot' => array('parent' => NULL, "strip" => true),
		'settings' => array('parent' => 'tftproot', "strip" => true),
		'wallpapers' => array('parent' => 'tftproot', "strip" => false),
		'ringtones' => array('parent' => 'tftproot', "strip" => true),
		'locales' => array('parent' => 'tftproot', "strip" => true),
		'firmware' => array('parent' => 'tftproot', "strip" => true),
		'languages' => array('parent' => 'locales', "strip" => false),
		'countries' => array('parent' => 'locales', "strip" => false),
	);
	function replaceSubdirTreeStructure($tmpSubdirs) {
		# replace config['subdirs'] paths using tree_structure
		$subdirs = Array();
		foreach ($this->tree_structure as $key => $value) {
			if (!empty($tmpSubdirs[$key])) {
				if (substr($tmpSubdirs[$key], 0, 1) !== "/") {
					if (!$value['parent']) {
						$path = $tmpSubdirs[$key];
					} else {
						if (is_array($tmpSubdirs[$value['parent']])) {
							$path = $tmpSubdirs[$value['parent']]['path'].'/'.$tmpSubdirs[$key];
						} else {
							$path = $tmpSubdirs[$value['parent']].'/'.$tmpSubdirs[$key];
						}
					}
				}
				$subdirs[$key] = array('path' => $path, 'strip' => $value['strip']);
			}
		}
		return $subdirs;
	}

	private function parse_multi_ini_string($string, $process_sections = false, $scanner_mode = INI_SCANNER_NORMAL) {
		$explode_str = '.';
		$escape_char = "'";
		// load ini file the normal way
		$data = parse_ini_string($string, $process_sections, $scanner_mode);
		if (!$process_sections) {
			$data = array($data);
		}
		foreach ($data as $section_key => $section) {
			// loop inside the section
			foreach ($section as $key => $value) {
				if (strpos($key, $explode_str)) {
					if (substr($key, 0, 1) !== $escape_char) {
						// key has a dot. Explode on it, then parse each subkeys
						// and set value at the right place thanks to references
						$sub_keys = explode($explode_str, $key);
						$subs =& $data[$section_key];
						foreach ($sub_keys as $sub_key) {
							if (!isset($subs[$sub_key])) {
								$subs[$sub_key] = [];
							}
							$subs =& $subs[$sub_key];
						}
						// set the value at the right place
						$subs = $value;
						// unset the dotted key, we don't need it anymore
						unset($data[$section_key][$key]);
					}
					// we have escaped the key, so we keep dots as they are
					else {
						$new_key = trim($key, $escape_char);
						$data[$section_key][$new_key] = $value;
						unset($data[$section_key][$key]);
					}
				}
			}
		}
		return $data;
		if (!$process_sections) {
			$data = $data[0];
		}
		return $data;
	}
	
	private function parse_multi_ini_file($file, $process_sections = false, $scanner_mode = INI_SCANNER_NORMAL) {
		// load ini file the normal way
		$string = file_get_contents($file);
		return $this->parse_multi_ini_string($string, $process_sections, $scanner_mode);
		return $data;
	}

	public function getConfiguration() {
		return $this->config;
	}
	
	public function printConfiguration() {
		print_r($this->config);
		//var_dump($this->config);
	}
}

$configParser = new ConfigParser($base_path, "config.ini");
$config = $configParser->getConfiguration();

switch($config['main']['log_type']) {
	case 'SYSLOG':
		$logger = new Logger_Syslog($config['main']['log_level']);
		break;
	case 'FILE':
		if (!isempty($config['main']['log_file'])) {
			$logger = new Logger_Filename($config['main']['log_level'], $config['main']['log_file']);
		}
		break;
	case 'STDOUT':
		$logger = new Logger_Stdout($config['main']['log_level']);
		break;
	case 'STDERR':
		$logger = new Logger_Stderr($config['main']['log_level']);
		break;
	default:
		$logger = new Logger_Null($config['main']['log_level']);
}

# Fixup debug
$print_debug = (!empty($config['main']['debug'])) ? $config['main']['debug'] : 'off';
$print_debug = ($print_debug == 1) ? 'on' : $print_debug;

if(defined('STDIN') ) {
	$configParser->printConfiguration();
}
?>