/**
 * EGroupware clientside API object
 *
 * @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
 * @package etemplate
 * @subpackage api
 * @link http://www.egroupware.org
 * @author Ralf Becker <RalfBecker@outdoor-training.de>
 * @version $Id$
 */

"use strict";

/*egw:uses
	egw_core;
*/

/**
 * Methods to display a success or error message and the app-header
 *
 * @augments Class
 * @param {string} _app application name object is instanciated for
 * @param {object} _wnd window object is instanciated for
 */
egw.extend('message', egw.MODULE_WND_LOCAL, function(_app, _wnd)
{
	_app;	// not used, but required by function signature
	var message_timer;
	var error_reg_exp;
	var on_click_remove_installed = false;

	// Register an 'error' plugin, displaying using the message system
	this.registerJSONPlugin(function(type, res, req) {
		if (typeof res.data == 'string')
		{
			egw.message(res.data,'error');
			return true;
		}
		throw 'Invalid parameters';
	}, null, 'error');

	return {
		/**
		 * Display an error or regular message
		 *
		 * Alle messages but type "success" are displayed 'til next message or user clicks on it.
		 *
		 * @param {string} _msg message to show or empty to remove previous message
		 * @param {string} _type 'help', 'info', 'error', 'warning' or 'success' (default)
		 */
		message: function(_msg, _type)
		{
			var framework = _wnd.framework;
			var jQuery = _wnd.jQuery;

			if (_msg && typeof _type == 'undefined')
			{
				if (typeof error_reg_exp == 'undefined') error_reg_exp = new RegExp('(error|'+egw.lang('error')+')', 'i');

				_type = _msg.match(error_reg_exp) ? 'error' : 'success';
			}

			// if we are NOT in a popup and have a framwork --> let it deal with it
			if (!this.is_popup() && typeof framework != 'undefined')
			{
				// currently not using framework, but top windows message
				//framework.setMessage.call(framework, _msg, _type);
				if (_wnd !== _wnd.top)
				{
					egw(_wnd.top).message(_msg, _type);
					return;
				}
			}
			// handle message display for non-framework templates, eg. idots or jerryr
			if (message_timer)
			{
				_wnd.clearTimeout(message_timer);
				message_timer = null;
			}
			var parent = jQuery('div#divAppboxHeader');
			// popup has no app-header (idots) or it is hidden by onlyPrint class (jdots) --> use body
			if (!parent.length || parent.hasClass('onlyPrint'))
			{
				parent = jQuery('body');
			}
			jQuery('div#egw_message').remove();

			if (_msg)	// empty _msg just removes pervious message
			{
				if (!on_click_remove_installed)
				{
					// install handler to remove message on click
					jQuery('body').on('click', 'div#egw_message', function(e) {
						jQuery('div#egw_message').remove();
					});
					on_click_remove_installed = true;
				}
				parent.prepend(jQuery(_wnd.document.createElement('div'))
					.attr('id','egw_message')
					.text(_msg)
					.addClass(_type+'_message')
					.css('position', 'absolute'));

				if (_type == 'success')	// clear message again after some time, if no error
				{
					message_timer = _wnd.setTimeout(function() {
						jQuery('div#egw_message').remove();
					}, 5000);
				}
			}
		},

		/**
		 * Are we running in a popup
		 *
		 * @returns {boolean} true: popup, false: main window
		 */
		is_popup: function ()
		{
			var popup = false;
			try {
				if (_wnd.opener && typeof _wnd.opener.top.egw == 'function')
				{
					popup = true;
				}
			}
			catch(e) {
				// ignore SecurityError exception if opener is different security context / cross-origin
			}
			return popup;
		},

		/**
		 * Active app independent if we are using a framed template-set or not
		 *
		 * @returns {string}
		 */
		app_name: function()
		{
			return !this.is_popup() && _wnd.framework && _wnd.framework.activeApp ? _wnd.framework.activeApp.appName : _wnd.egw_appName;
		},

		/**
		 * Update app-header and website-title
		 *
		 * @param {string} _header
		 * @param {string} _app Application name, if not for the current app
		 */
		app_header: function(_header,_app)
		{
			// not for popups and only for framed templates
			if (!this.is_popup() && _wnd.framework && _wnd.framework.setWebsiteTitle)
			{
				var app = _app || this.app_name();
				var title = _wnd.document.title.replace(/[.*]$/, '['+_header+']');

				_wnd.framework.setWebsiteTitle.call(_wnd.framework, app, title, _header);
				return;
			}
			_wnd.jQuery('div#divAppboxHeader').text(_header);

			_wnd.document.title = _wnd.document.title.replace(/[.*]$/, '['+_header+']');
		},

		/**
		* Refresh given application _targetapp display of entry _app _id, incl. outputting _msg
		*
		* Default implementation here only reloads window with it's current url with an added msg=_msg attached
		*
		* @param {string} _msg message (already translated) to show, eg. 'Entry deleted'
		* @param {string} _app application name
		* @param {(string|number)} _id id of entry to refresh or null
		* @param {string} _type either 'update', 'edit', 'delete', 'add' or null
		* - update: request just modified data from given rows.  Sorting is not considered,
		*		so if the sort field is changed, the row will not be moved.
		* - edit: rows changed, but sorting may be affected.  Requires full reload.
		* - delete: just delete the given rows clientside (no server interaction neccessary)
		* - add: requires full reload for proper sorting
		* @param {string} _targetapp which app's window should be refreshed, default current
		* @param {(string|RegExp)} _replace regular expression to replace in url
		* @param {string} _with
		* @param {string} _msg_type 'error', 'warning' or 'success' (default)
		* @todo move code from jsapi to here to deprecate egw_refresh in favor of egw.refresh()
		*/
	   refresh: function(_msg, _app, _id, _type, _targetapp, _replace, _with, _msg_type)
	   {
		   _wnd.egw_refresh(_msg, _app, _id, _type, _targetapp, _replace, _with, _msg_type);
	   }
	};
});