/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an 'AS IS' basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Bespin.
 *
 * The Initial Developer of the Original Code is
 * Mozilla.
 * Portions created by the Initial Developer are Copyright (C) 2009
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Bespin Team (bespin@mozilla.com)
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
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 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

var QuickMatcher = require('matcher:quick').QuickMatcher;
var MatcherMenu = require('command_line:views/menu').MatcherMenu;

/**
 * @see typehint#getHint()
 */
exports.existingFileHint = {
    getHint: function(input, assignment, typeExt) {
        var query = assignment.value || '';
        var matcher = QuickMatcher.create({ query: query });

        var menu = MatcherMenu.create({
            input: input,
            assignment: assignment,
            typeExt: typeExt,
            matcher: matcher
        });

        var files = input.env.get('files');
        files.listAll().then(function(fileList) {
            matcher.addItems(fileList.map(function(item) {
                var lastSep = item.lastIndexOf('/');
                if (lastSep === -1) {
                    return {
                        name: item,
                        path: '/'
                    };
                }
                return {
                    name: item.substring(lastSep + 1),
                    path: '/' + item.substring(0, lastSep + 1)
                };
            }));
        });

        return menu.get('hint');
    }
};
