/*
# -- BEGIN LICENSE BLOCK ----------------------------------
# This file is part of dcRevisions, a plugin for Dotclear.
#
# Copyright (c) 2010 Tomtom and contributors
# http://blog.zenstyle.fr/
#
# Licensed under the GPL version 2.0 license.
# A copy of this license is available in LICENSE file or at
# http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
# -- END LICENSE BLOCK ------------------------------------
*/
dotclear.revisionExpander = function() {
	$('#revisions-list tr.line').each(function() {
		var img = document.createElement('img');
		img.src = dotclear.img_plus_src;
		img.alt = dotclear.img_plus_alt;
		img.className = 'expand';
		$(img).css('cursor','pointer');
		img.line=this;
		img.onclick = function() {
			dotclear.viewRevisionContent(this,this.line);
		};
		$(this).find('td.rid').prepend(img);
	});
};

dotclear.viewRevisionContent = function(img,line) {
	var revisionId = line.id.substr(1);
	var postId = $("#id").val();
	var tr = document.getElementById('re'+revisionId);
	if(!tr){
		tr = document.createElement('tr');
		tr.id = 're'+revisionId;
		var td = document.createElement('td');
		td.colSpan = 5;
		td.className = 'expand';
		tr.appendChild(td);
		img.src = dotclear.img_minus_src;
		img.alt = dotclear.img_minus_alt;
		$.get(
			'services.php',{
				f: 'getPatch',
				pid: postId,
				rid: revisionId
			},
			function(data){
				var rsp = $(data).children('rsp')[0];
				if(rsp.attributes[0].value == 'ok'){
					var excerpt = $(rsp).find('post_excerpt_xhtml');
					var content = $(rsp).find('post_content_xhtml');
					var table = '<table class="preview-rev">';
					table += dotclear.viewRevisionRender($(rsp).find('post_excerpt_xhtml'),dotclear.msg.excerpt,revisionId);
					table += dotclear.viewRevisionRender($(rsp).find('post_content_xhtml'),dotclear.msg.content,revisionId);
					table += '</table>';
					$(td).append(table)
				}
				else {
					alert($(rsp).find('message').text());
				}
			}
		);
		$(line).toggleClass('expand');
		line.parentNode.insertBefore(tr,line.nextSibling);
	}
	else if (tr.style.display=='none') {
		$(tr).toggle();
		$(line).toggleClass('expand');
		img.src = dotclear.img_minus_src;
		img.alt = dotclear.img_minus_alt
	}
	else {
		$(tr).toggle();
		$(line).toggleClass('expand');
		img.src = dotclear.img_plus_src;
		img.alt = dotclear.img_plus_alt;
	}
};

dotclear.viewRevisionRender = function(content,title,revisionId){
	var res = '<thead><tr class="rev-header"><th colspan="3">'+title+'</th></tr>'+
	'<tr class="rev-number"><th class="minimal nowrap">'+dotclear.msg.current+
	'</th><th class="minimal nowrap">r'+revisionId+
	'</th><th class="maximal"></th></tr></thead><tbody>';
	if (content.size() > 0) {
		var previous = '';
		content.find('line').each(function() {
			var class = '';
			
			var o = this.attributes[0].value;
			var n = this.attributes[1].value;
			var line = this.attributes[2].value;
			console.log(previous+" - "+line);
			if (o != '' && n == '') {
				class = ' delete';
				if (previous == '') class += ' start';
				previous = 'o';
			} 
			if (o == '' && n != '') {
				class = ' insert';
				if (previous == '') class += ' start';
				previous = 'n';
			}
			if (o != '' && n != '') {
				if (previous == 'o') class = ' delete-end';
				if (previous == 'n') class = ' insert-end';
				previous = '';
			}
			res += '<tr><td class="minimal col-line">'+o+
			'</td><td class="minimal col-line">'+n+
			'</td><td class="maximal'+class+'">'+line+
			'</td></tr>';
		});
	}
	res += '</tbody>';
	return res;
};

$(function() {
	$('#edit-entry').onetabload(function() {
		$('#revisions-area label').toggleWithLegend(
			$('#revisions-area').children().not('label'),{
				cookie:'dcx_post_revisions',
				hide:$('#revisions_area').val() == '<p></p>',
				fn:dotclear.revisionExpander()
			}
		);
		$('#revisions-list tr.line a.patch').click(function() {
			return window.confirm(dotclear.msg.confirm_apply_patch);
		});
	});
});