dots = /\./gi;
dashes = /\//gi;
flags = [ 'Attachment', 'Forwarded' ,'Recent', 'Unseen',  'Answered',  'Draft',  'Deleted', 'Flagged', 'Followupflag', 'Label' ];
months = ['Jan','Feb','Mar','Apr','May','June','July','Aug','Sept','Oct','Nov','Dec'];
current_folder = 'INBOX';
current_count = DataLayer.get( 'message', { criteria: { count: true, properties: {context:{folder:current_folder}} } }, true );

DataLayer.codec( 'folder', 'tree', {

	encoder: function( data ){
    
	    if( preferences.use_local_messages == 1 || expresso_offline)
	    {
		var folders = expresso_local_messages.list_local_folders();
		
		var stripParents = /^(.*)\/([^\/]*)/;

		$.each( folders, function( i, folder ){
			
			if(typeof(folder) == 'undefined')  return;
			  
			var id = 'local_messages/' + folder[0];

			var parts = stripParents.exec( id );
		    
			data[data.length] = { 'id' : id,
					      'commonName' : parts[2],
					      'parentFolder' : parts[1] };
		});
	    }

	    var trees = [[],[],[]],

	    root = { inbox: /^INBOX/, share: /^user/, local: /^local_messages/ };

	    for (var i = 0; i < data.length; i++ )
	    {
		var index = root.inbox.test(data[i].id) ? 0 :
			    root.share.test(data[i].id) ? 1 :
			    root.local.test(data[i].id) ? 2 :
			    'false';

		if( isNaN(index) ) continue;

		if (!unorphanize(trees[index], data[i]))
		{
		    data[i].children = [];
		    trees[index].push(data[i]);
		}
	    }

	    return( { folders: trees } );
	}
} );

DataLayer.codec( 'message', 'jqGrid', {

      encoder: function( data, crit ){
	
	    crit = crit.criteria;

	    if( !crit.properties.context.folder.indexOf( 'local_messages/' ) )
	    {
		var msgs = expresso_local_messages.get_local_range_msgs( crit.properties.context.folder.replace(dots, "/").replace("local_messages/", ""),
									  crit.offset + 1, crit.limit, "SORTARRIVAL", crit.orderDesc, "ALL", 1, 1 );

		for( var i = 0; i < msgs.length; i++ )
		{
		      msgs[i].size = msgs[i].Size;
		      msgs[i].timestamp = msgs[i].udate * 1000;
		      msgs[i].flags = [];

		      for( var ii = 0; ii < flags.length; ii++ )
			  if( f = $.trim( msgs[i][ flags[ii] ] ) )
			      msgs[i].flags[ msgs[i].flags.length ] =  f;

		      msgs[i].flags = msgs[i].flags.join(',');
		}

		data = msgs;
	    }

	    return( {"rows": data, 
		      "records": data.num_msgs || current_count,
		      "page": crit.offset / crit.limit + 1, 
		      "total": Math.ceil( data.num_msgs || current_count / crit.limit )} );
      },
      criteria: function( crit ){

	    return { criteria: { properties: {context:{folder: current_folder || 'INBOX'}}, offset: crit.rows * ( crit.page - 1 ), limit: crit.rows, orderDesc: crit.sord == "desc", currentCount: current_count } };

      }
});
    
//BASE_PATH = '../';
//encontra os pais de todas as pastas e cria uma nova estrutura adicionando os filhos a um array no atributo 'children' do respectivo pai
unorphanize = function(root, element) {
	var ok = false;
	for (var i=0; i<root.length; i++) {
		if (root[i].id == element.parentFolder) {
			element.children = new Array(); 
			root[i].children.push(element);
			return true;
		} else if (ok = unorphanize(root[i].children, element)) {
			break;
		}
	}

	return ok;
}

/* --- helpers --- */
bytes2Size = function(bytes) {
	var sizes = ['B', 'KB', 'MB', 'GB', 'TB'];
	if (bytes == 0) return 'n/a';
	var i = parseInt(Math.floor(Math.log(bytes) / Math.log(1024)));
	var size = (i<2) ? Math.round((bytes / Math.pow(1024, i))) : Math.round((bytes / Math.pow(1024, i)) * 100)/100;
	return  size + ' ' + sizes[i];
}

flags2Class = function(cellvalue, options, rowObject) {
	var classes = '';	
	cellvalue = cellvalue.split(',');
	cell = {
			Unseen: parseInt(cellvalue[0])  ? 'Unseen' : 'Seen', 
			Answered: parseInt(cellvalue[1]) ? 'Answered' : (parseInt(cellvalue[2]) ? 'Forwarded' : ''), 
			Flagged: parseInt(cellvalue[3]) ? 'Flagged' : '',
			Recent: parseInt(cellvalue[4])  ? 'Recent' : '', 			
			Draft: parseInt(cellvalue[5]) ? 'Draft' : ''		
		};
	for(var flag in cell){
		classes += '<span class="flags '+ (cell[flag]).toLowerCase() + '"' + (cell[flag] != "" ? 'title="'+ get_lang(cell[flag])+'"' : '')+'> </span>';	
	}
	if(rowObject.labels){	
		var titles = [];
		var count = 0;
		 for(i in rowObject.labels){
			titles[count] = " "+rowObject.labels[i].name;
			count++;
		}
		titles = titles.join();
		classes += '<span class="flags labeled" title="'+titles+'"> </span>';
	}else{
		classes += '<span class="flags"> </span>';
	}
	
	if(rowObject.followupflagged){		
		if(rowObject.followupflagged.followupflag.id < 7){
			var nameFollowupflag = get_lang(rowObject.followupflagged.followupflag.name);
		}else{
			var nameFollowupflag = rowObject.followupflagged.followupflag.name;
		}
		if(rowObject.followupflagged.isDone == 1){
			classes += '<span class="flags followupflagged" title="'+nameFollowupflag+'" style="background:'+rowObject.followupflagged.backgroundColor+';"><img style=" margin-left:-3px;" src="../prototype/modules/mail/img/flagChecked.png"></span>';
		}else{			
			classes += '<span class="flags followupflagged" title="'+nameFollowupflag+'" style="background:'+rowObject.followupflagged.backgroundColor+';"><img src="../prototype/modules/mail/img/flagEditor.png"></span>';
		}
		
	}

	return classes;
}

NormaliseFrom = function(cellvalue, options, rowObject) {
	rowObject['flags'] = rowObject['flags'].split(",");
	if(rowObject['flags'][rowObject['flags'].length-1] ==  1){
		return get_lang(special_folders["Drafts"]);
	}
	return cellvalue;	
}

NormaliseSubject = function(cellvalue, options, rowObject) {
	return html_entities(cellvalue);
}

date2Time = function (timestamp) {
	date = new Date();
	if( typeof timestamp === "string" )
	    timestamp = parseInt( timestamp, 10 );
	dat = new Date(timestamp);
	if ((date.getTime() - timestamp) < (24*60*60*1000)) {
		return '<span class="timable" title="'+dat.getTime()+'"></span>';
	} else {
		date = new Date(timestamp);
		if(is_ie){
			var b = date.toString().split(' ');
			var c = b[2] + "/" + months.indexOf(b[1]) + "/" + b[5];
			return '<span class="datable">' + c + '</span>';
		}else{
			var b = date.toISOString().split("T")[0].split("-");
			var c = b[2] + "/" + b[1] + "/" + b[0];
			return '<span class="datable">' + c + '</span>';
		}
	}
}

changeTabIndex = function (elements) {
//	jQuery('#foldertree').attr('tabIndex', '1').focus();
}

selectedMessagesCount = function() {
	var byte_size = 0, total_messages = 0;
	for (var folder in selectedMessages) {
		for (var message in selectedMessages[folder]) {
			if (selectedMessages[folder][message]) {
				byte_size += parseInt(onceOpenedMessages[folder][message].size);
				total_messages++;
			}
		}
	}
	$("#selected_messages_number").html(total_messages).next().html(bytes2Size(byte_size));
	return total_messages;
}