/* ***** BEGIN LICENSE BLOCK *****
 * Distributed under the BSD license:
 *
 * Copyright (c) 2010, Ajax.org B.V.
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of Ajax.org B.V. nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL AJAX.ORG B.V. BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 * ***** END LICENSE BLOCK ***** */
define(function (require, exports, module) {
    "use strict";

    var oop = require("../../lib/oop");
    var Behaviour = require('../behaviour').Behaviour;
    var CstyleBehaviour = require('./cstyle').CstyleBehaviour;
    var XmlBehaviour = require("../behaviour/xml").XmlBehaviour;
    var TokenIterator = require("../../token_iterator").TokenIterator;

    function hasType(token, type) {
        var hasType = true;
        var typeList = token.type.split('.');
        var needleList = type.split('.');
        needleList.forEach(function (needle) {
            if (typeList.indexOf(needle) == -1) {
                hasType = false;
                return false;
            }
        });
        return hasType;
    }

    var XQueryBehaviour = function () {

        this.inherit(CstyleBehaviour, ["braces", "parens", "string_dquotes"]); // Get string behaviour
        this.inherit(XmlBehaviour); // Get xml behaviour

        this.add("autoclosing", "insertion", function (state, action, editor, session, text) {
            if (text == '>') {
                var position = editor.getCursorPosition();
                var iterator = new TokenIterator(session, position.row, position.column);
                var token = iterator.getCurrentToken();
                var atCursor = false;
                var state = JSON.parse(state).pop();
                if ((token && token.value === '>') || state !== "StartTag") return;
                if (!token || !hasType(token, 'meta.tag') && !(hasType(token, 'text') && token.value.match('/'))) {
                    do {
                        token = iterator.stepBackward();
                    } while (token && (hasType(token, 'string') || hasType(token, 'keyword.operator') || hasType(token, 'entity.attribute-name') || hasType(token, 'text')));
                } else {
                    atCursor = true;
                }
                var previous = iterator.stepBackward();
                if (!token || !hasType(token, 'meta.tag') || (previous !== null && previous.value.match('/'))) {
                    return
                }
                var tag = token.value.substring(1);
                if (atCursor) {
                    var tag = tag.substring(0, position.column - token.start);
                }

                return {
                    text: '>' + '</' + tag + '>',
                    selection: [1, 1]
                }
            }
        });

    }
    oop.inherits(XQueryBehaviour, Behaviour);

    exports.XQueryBehaviour = XQueryBehaviour;
});
