<?php
/**
 * eGroupWare - TranslationTools
 *
 * @link http://www.egroupware.org
 * @author Miles Lott <milos(at)groupwhere.org>
 * @author Ralf Becker <RalfBecker(at)outdoor-training.de>
 * @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
 * @package translationtools
 * @version $Id$
 */

class solangfile
{
	var $total;
	var $debug = False;

	var $langarray;   // Currently loaded translations
	// array of missing phrases.
	var $missingarray;
	var $src_file;
	var $tgt_file;
	var $loaded_apps = array(); // Loaded app langs

	var $functions = array(		// functions containing phrases to translate and param#
		'lang'                => array(1),
		'create_input_box'    => array(1,3),
		'create_check_box'    => array(1,3),
		'create_select_box'   => array(1,4),
		'create_text_area'    => array(1,5),
		'create_notify'       => array(1,5),
		'create_password_box' => array(1,3)
	);
	var $files = array(
		'config.tpl' => 'config',
		'hook_admin.inc.php' => 'file_admin',
		'hook_preferences.inc.php' => 'file_preferences',
		'hook_settings.inc.php' => 'file',
		'hook_sidebox_menu.inc.php' => 'file',
		'hook_acl_manager.inc.php' => 'acl_manager'
	);
	/**
	 * Reference to global db-object
	 *
	 * @var egw_db
	 */
	var $db;

	function __construct()
	{
		$this->db = $GLOBALS['egw']->db;
	}

	function fetch_keys($app,$arr)
	{
		if (!is_array($arr))
		{
			return;
		}
		foreach($arr as $key => $val)
		{
			$this->plist[$key] = $app;
		}
	}

	function config_file($app,$fname)
	{
		//echo "<p>solangfile::config_file(app='$app',fname='$fname')</p>\n";
		$lines = file($fname);

		if ($app != 'setup')
		{
			$app = 'admin';
		}
		foreach($lines as $n => $line)
		{
			while (preg_match('/\{lang_([^}]+)\}(.*)/',$line,$found))
			{
				$lang = str_replace('_',' ',$found[1]);
				$this->plist[$lang] = $app;

				$line = $found[2];
			}
		}
	}

	function special_file($app,$fname,$langs_in)
	{
		//echo "<p>solangfile::special_file(app='$app',fname='$fname',langs_in='$langs_in')</p>\n";
		$app_in = $app;
		switch ($langs_in)
		{
		 	case 'config':
				$this->config_file($app,$fname);
				return;
			case 'file_admin':
			case 'file_preferences':
				$app = substr($langs_in,5);
				break;
			case 'phpgwapi':
				$app = 'common';
				break;
		}
		$GLOBALS['file'] = $GLOBALS['settings'] = array();
		unset($GLOBALS['acl_manager']);

		ob_start();		// suppress all output
		// call the hooks and not the files direct, as it works for both files and method hooks
		switch(basename($fname))
		{
			case 'hook_settings.inc.php':
				$settings = $GLOBALS['egw']->hooks->single('settings',$app_in,true);
				if (!is_array($settings) || !$settings)
				{
					$settings =& $GLOBALS['settings'];	// old method of setting GLOBALS[settings], instead returning the settings
					unset($GLOBALS['settings']);
				}
				break;

			case 'hook_admin.inc.php':
				$GLOBALS['egw']->hooks->single('admin',$app_in,true);
				break;

			case 'hook_preferences.inc.php':
				$GLOBALS['egw']->hooks->single('preferences',$app_in,true);
				break;

			case 'hook_acl_manager.inc.php':
				$GLOBALS['egw']->hooks->single('acl_manager',$app_in,true);
				break;

			default:
				include($fname);
				break;
		}
		ob_end_clean();

		if (isset($GLOBALS['acl_manager']))	// hook_acl_manager
		{
			foreach($GLOBALS['acl_manager'] as $app => $data)
			{
				foreach ($data as $item => $arr)
				{
					foreach ($arr as $key => $val)
					{
						switch ($key)
						{
							case 'name':
								$this->plist[$val] = $app;
								break;
							case 'rights':
								foreach($val as $lang => $right)
								{
									$this->plist[$lang] = $app;
								}
								break;
						}
					}
				}
			}
		}
		if (count($GLOBALS['file']))	// hook_{admin|preferences|sidebox_menu}
		{
			foreach ($GLOBALS['file'] as $lang => $link)
			{
				$this->plist[$lang] = $app;
			}
		}
		foreach((array)$settings as $data)
		{
			foreach(array('label','help') as $key)
			{
				if (isset($data[$key]) && !empty($data[$key]))
				{
					$this->plist[$data[$key]] = $app;
				}
			}
		}
	}

	function parse_php_app($app,$fd)
	{
		$reg_expr = '('.implode('|',array_keys($this->functions)).")[ \t]*\([ \t]*(.*)$";
		define('SEP',filesystem_separator());
		$d=dir($fd);
		while ($fn=$d->read())
		{
			if (@is_dir($fd.$fn.SEP))
			{
				if (($fn!='.')&&($fn!='..')&&($fn!='CVS') && $fn != '.svn')
				{
					$this->parse_php_app($app,$fd.$fn.SEP);
				}
				if ($fn == 'inc')
				{
					// make sure all hooks get called, even if they dont exist as hooks
					foreach($this->files as $f => $type)
					{
						if (substr($f,0,5) == 'hook_' && !file_exists($f = $fd.'inc/'.$f))
						{
							$this->special_file($app,$f,$this->files[$type]);
						}
					}
				}
			}
			elseif (is_readable($fd.$fn))
			{
				if (isset($this->files[$fn]))
				{
					$this->special_file($app,$fd.$fn,$this->files[$fn]);
				}
				if (strpos($fn,'.php') === False)
				{
					continue;
				}
				$lines = file($fd.$fn);

				foreach($lines as $n => $line)
				{
					//echo "line='$line', lines[1+$n]='".$lines[1+$n]."'<br>\n";
					while (eregi($reg_expr,$line,$parts))
					{
						//echo "***func='$parts[1]', rest='$parts[2]'<br>\n";
						$args = $this->functions[$parts[1]];
						$rest = $parts[2];
						for($i = 1; $i <= $args[0]; ++$i)
						{
							$next = 1;
							if (!$rest || empty($del) || strpos($rest,$del,1) === False)
							{
								$rest .= trim($lines[++$n]);
							}
							$del = $rest[0];
							if ($del == '"' || $del == "'")
							{
								//echo "rest='$rest'<br>\n";
								while (($next = strpos($rest,$del,$next)) !== False && $rest[$next-1] == '\\')
								{
									$rest = substr($rest,0,$next-1).substr($rest,$next);
								}
								if ($next === False)
								{
									break;
								}
								$phrase = str_replace('\\\\','\\',substr($rest,1,$next-1));
								//echo "next2=$next, phrase='$phrase'<br>\n";
								if ($args[0] == $i)
								{
									//if (!isset($this->plist[$phrase])) echo ">>>$phrase<<<<br>\n";
									$this->plist[$phrase] = $app;
									array_shift($args);
									if (!count($args))
									{
										break;	// no more args needed
									}
								}
								$rest = substr($rest,$next+1);
							}
							if(!preg_match('/'."[ \t\n]*,[ \t\n]*(.*)$".'/',$rest,$parts))
							{
								break;	// nothing found
							}
							$rest = $parts[1];
						}
						$line = $rest;
					}
				}
			}
		}
		$d->close();
	}

	function missing_app($app,$userlang=en)
	{
		$cur_lang=$this->load_app($app,$userlang);
		define('SEP',filesystem_separator());
		$fd = EGW_SERVER_ROOT . SEP . $app . SEP;
		$this->plist = array();
		$this->parse_php_app($app == 'phpgwapi' ? 'common' : $app,$fd);

		reset($this->plist);
		return($this->plist);
	}

	/**
	 * loads all app phrases into langarray
	 *
	 * @param $lang user lang variable (defaults to en)
	 */
	function load_app($app,$userlang='en',$target=True)
	{
		define('SEP',filesystem_separator());

		$langarray = array();
		$fd = EGW_SERVER_ROOT . SEP . $app . SEP . ($app == 'setup' ? 'lang' : 'setup');
		$fn = $fd . SEP . EGW_LANGFILE_PREFIX . $userlang . '.lang';

		if (@is_writeable($fn) || is_writeable($fd))
		{
			$wr = True;
		}
		if (!$target) $this->src_apps = array();

		$from = $GLOBALS['egw']->translation->charset($userlang);
		$to = $GLOBALS['egw']->translation->charset();
		//echo "<p>solangfile::load_app('$app','$userlang') converting from charset('$userlang')='$from' to '$to'</p>\n";

		if (file_exists($fn))
		{
			if ($fp = @fopen($fn,'rb'))
			{
				 while ($data = fgets($fp,8000))
				 {
					list($message_id,$app_name,,$content) = explode("\t",$data);
					if(!$message_id)
					{
						continue;
					}
					if (empty($app_name))
					{
						$app_name = $app;	// fix missing app_name
					}
					//echo '<br>load_app(): adding phrase: $this->langarray["'.$message_id.'"]=' . trim($content)."' for $app_name";
					$_mess_id = strtolower(trim($message_id));
					$langarray[$_mess_id]['message_id'] = $_mess_id;
					$app_name   = trim($app_name);
					$langarray[$_mess_id]['app_name']   = $app_name;
					if (!$target)
					{
						$this->src_apps[$app_name] = $app_name;
					}
					$langarray[$_mess_id]['content']    =
						$GLOBALS['egw']->translation->convert(trim($content),$from,$to);
				 }
				 fclose($fp);
			}
		}
		else
		{
			$fn = lang('no file');
		}
		if ($target)
		{
			$this->tgt_file = $fn;
		}
		else
		{
			$this->src_file = $fn;
		}
		// stuff class array listing apps that are included already
		$this->loaded_apps[$userlang]['filename']  = $fn;
		$this->loaded_apps[$userlang]['writeable'] = $wr;

		if (!$target) ksort($this->src_apps);

		if($this->debug) { _debug_array($langarray); }
		@ksort($langarray);
		return $langarray;
	}

	function write_file($app_name,$langarray,$userlang,$which='target')
	{
		$to = $GLOBALS['egw']->translation->charset($userlang);
		$from = $GLOBALS['egw']->translation->charset();
		//echo "<p>solangfile::write_file('$app_name',,'$userlang') converting from '$from' to charset('$userlang')='$to'</p>\n";

		$fn = EGW_SERVER_ROOT . SEP . $app_name . SEP . ($app_name == 'setup' ? 'lang' : 'setup') . SEP . EGW_LANGFILE_PREFIX . $userlang . '.lang';
		if (file_exists($fn))
		{
			$backup = $fn . '.old';
			@unlink($backup);
			@rename($fn,$backup);
		}
		$fp = fopen($fn,'wb');
		while(list($mess_id,$data) = @each($langarray))
		{
			$data['content'] = $GLOBALS['egw']->translation->convert(trim($data['content']),$from,$to);

			// dont write empty content
			if (!empty($data['content']))
			{
				fwrite($fp,$mess_id . "\t" . $data['app_name'] . "\t" . $userlang . "\t" . $data['content'] . "\n");
			}
		}
		fclose($fp);

		if ($which == 'source')
		{
			$this->src_file = $fn;
		}
		else
		{
			$this->tgt_file = $fn;
		}
		return $fn;
	}

	function loaddb($app_name,$userlangs)
	{
		if (!is_array($userlangs))
		{
			$userlangs = array($userslangs => $userlangs);
		}
		$GLOBALS['egw']->translation->install_langs($userlangs,'addmissing',$app_name);

		return lang('done');
	}
}

/*
 * Helper functions for searching new phrases in sidebox, preferences or admin menus
 */
if (!function_exists('display_sidebox') && $_GET['menuaction'] == 'developer_tools.uilangfile.missingphrase')
{
	function display_sidebox($appname,$menu_title,$file)	// hook_sidebox_menu
	{
		if (!is_array($file)) return;

		unset($file['_NewLine_']);
		if (is_array($GLOBALS['file']))
		{
			$GLOBALS['file'] = $file;
		}
		else
		{
			$GLOBALS['file'] += $file;
		}
	}
}
if (!function_exists('display_section') && $_GET['menuaction'] == 'developer_tools.uilangfile.missingphrase')
{
	function display_section($appname,$file,$file2='')		// hook_preferences, hook_admin
	{
		if (is_array($file2))
		{
			$file = $file2;
		}
		if (!is_array($file)) return;

		if (is_array($GLOBALS['file']))
		{
			$GLOBALS['file'] = $file;
		}
		else
		{
			$GLOBALS['file'] += $file;
		}
	}
}