/**
 * This file is part of the WdCore framework
 *
 * @author Olivier Laviale <olivier.laviale@gmail.com>
 * @link http://www.weirdog.com/wdcore/
 * @copyright Copyright (c) 2007-2010 Olivier Laviale
 * @license http://www.weirdog.com/wdcore/license/
 */

"use strict";

var WdOperation = new Class
({
	Extends: Request.JSON,

	initialize: function(destination, operation, options)
	{
		this.destination = destination;
		this.operation = operation;

		if (!options)
		{
			options = {};
		}

		if (!options.url)
		{
			options.url = document.location.protocol + '//' + document.location.host + document.location.pathname;
		}

		this.parent(options);
	},

	post: function(params)
	{
		if (!params)
		{
			params = {};
		}

		params['#destination'] = this.destination;
		params['#operation'] = this.operation;

		return this.parent(params);
	},

	get: function(params)
	{
		this.options.url = '/api/' + this.destination + '/' + this.operation;

		return this.parent(params);
	},

	success: function(text)
	{
		this.response.json = JSON.decode(text, this.options.secure);

		if (!this.response.json)
		{
			var el = new Element('pre', { 'html': text });

			document.body.appendChild(el);

			alert(text);

			return;
		}

		this.onSuccess(this.response.json, text);
	}
});

WdOperation.encode = function(destination, operation, params)
{
	var query = '/api/' + destination + '/' + operation;
	var parts = [];

	Object.each
	(
		params, function (value, key)
		{
			parts.push(key + '=' + encodeURIComponent(value));
		}
	);

	if (parts)
	{
		query += '?' + parts.join('&');
	}

	return query;
};

Document.implement
({

	updateAssets: function (assets, done)
	{
		var base = window.location.protocol + '//' + window.location.hostname;

		//
		// initialize css
		//

		var css = [];

		if (typeof(document_cached_css_assets) !== 'undefined')
		{
			//console.log('cached css assets: %a', document_cached_css_assets);

			css = document_cached_css_assets;
		}

		if (assets.css)
		{
			css = assets.css;

			$(document.head).getElements('link[type="text/css"]').each
			(
				function(el)
				{
					var href = el.href.substring(base.length);

					if (css.indexOf(href) != -1)
					{
						//console.info('css already exists: %s', href);

						css.erase(href);
					}
				}
			);
		}

		//console.info('css final: %a', css);

		css.each
		(
			function(href)
			{
				new Asset.css(href);
			}
		);

		//
		// initialize javascript
		//

		var js = [];

		if (typeof(document_cached_js_assets) !== 'undefined')
		{
			//console.log('cached js assets: %a', document_cached_js_assets);

			js = document_cached_js_assets;
		}

		if (assets.js)
		{
			js = assets.js;

			$(document.html).getElements('script').each
			(
				function(el)
				{
					var src = el.src.substring(base.length);

					if (js.indexOf(src) != -1)
					{
						//console.info('script alredy exixts: %s', src);

						js.erase(src);
					}
				}
			);
		}

		//console.info('js: %a', js);

		if (js.length)
		{
			var js_count = js.length;

			js.each
			(
				function(src)
				{
					new Asset.javascript
					(
						src,
						{
							onload: function()
							{
								//console.info('loaded: %a', src);

								js_count--;

								if (!js_count)
								{
									//console.info('no js remaingn, initialize editor');

									done();
								}
							}
						}
					);
				}
			);
		}
		else
		{
			done();
		}
	}
});


Request.Element = new Class
({
	Extends: Request.JSON,

	options:
	{
		link: 'cancel'
	},

	onSuccess: function(response)
	{
		var el = Elements.from(response.rc).shift();

		if (!response.assets)
		{
			this.parent(el, response);

			return;
		}

//		document.updateAssets(response.assets, this.parent.bind(this, el, response));

		// https://github.com/mootools/mootools-core/blob/master/Source/Request/Request.js

		document.updateAssets
		(
			response.assets, function()
			{
				this.fireEvent('complete', arguments).fireEvent('success', arguments).callChain();
			}
			.bind(this, el, response)
		);
	}
});