/**
 * Dialog.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2015 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * Contains all dialog logic.
 *
 * @class tinymce.codesample.Dialog
 * @private
 */
define("tinymce/codesampleplugin/Dialog", [
	"tinymce/dom/DOMUtils",
	"tinymce/codesampleplugin/Utils",
	"tinymce/codesampleplugin/Prism"
], function(DOMUtils, Utils, Prism) {
	var DOM = DOMUtils.DOM;

	function getLanguages(editor) {
		var defaultLanguages = [
			{text: 'HTML/XML', value: 'markup'},
			{text: 'JavaScript', value: 'javascript'},
			{text: 'CSS', value: 'css'},
			{text: 'PHP', value: 'php'},
			{text: 'Ruby', value: 'ruby'},
			{text: 'Python', value: 'python'},
			{text: 'Java', value: 'java'},
			{text: 'C', value: 'c'},
			{text: 'C#', value: 'csharp'},
			{text: 'C++', value: 'cpp'}
		];

		var customLanguages = editor.settings.codesample_languages;
		return customLanguages ? customLanguages : defaultLanguages;
	}

	function insertCodeSample(editor, language, code) {
		editor.undoManager.transact(function() {
			var node = getSelectedCodeSample(editor);

			code = DOM.encode(code);

			if (node) {
				editor.dom.setAttrib(node, 'class', 'language-' + language);
				node.innerHTML = code;
				Prism.highlightElement(node);
				editor.selection.select(node);
			} else {
				editor.insertContent('<pre id="__new" class="language-' + language + '">' + code + '</pre>');
				editor.selection.select(editor.$('#__new').removeAttr('id')[0]);
			}
		});
	}

	function getSelectedCodeSample(editor) {
		var node = editor.selection.getNode();

		if (Utils.isCodeSample(node)) {
			return node;
		}

		return null;
	}

	function getCurrentCode(editor) {
		var node = getSelectedCodeSample(editor);

		if (node) {
			return node.textContent;
		}

		return '';
	}

	function getCurrentLanguage(editor) {
		var matches, node = getSelectedCodeSample(editor);

		if (node) {
			matches = node.className.match(/language-(\w+)/);
			return matches ? matches[1] : '';
		}

		return '';
	}

	return {
		open: function(editor) {
			editor.windowManager.open({
				title: "Insert/Edit code sample",
				minWidth: Math.min(DOM.getViewPort().w, editor.getParam('codesample_dialog_width', 800)),
				minHeight: Math.min(DOM.getViewPort().h, editor.getParam('codesample_dialog_height', 650)),
				layout: 'flex',
				direction: 'column',
				align: 'stretch',
				body: [
					{
						type: 'listbox',
						name: 'language',
						label: 'Language',
						maxWidth: 200,
						value: getCurrentLanguage(editor),
						values: getLanguages(editor)
					},

					{
						type: 'textbox',
						name: 'code',
						multiline: true,
						spellcheck: false,
						ariaLabel: 'Code view',
						flex: 1,
						style: 'direction: ltr; text-align: left',
						classes: 'monospace',
						value: getCurrentCode(editor),
						autofocus: true
					}
				],
				onSubmit: function(e) {
					insertCodeSample(editor, e.data.language, e.data.code);
				}
			});
		}
	};
});