/* ***** BEGIN LICENSE BLOCK *****
 * Distributed under the BSD license:
 *
 * Copyright (c) 2013 Matthew Christopher Kastor-Inare III, Atropa Inc. Intl
 * All rights reserved.
 *
 * Contributed to Ajax.org under the BSD license.
 *
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 * modification, are permitted provided that the following conditions are met:
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 *       notice, this list of conditions and the following disclaimer.
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/*jslint indent: 4, maxerr: 50, white: true, browser: true, vars: true*/
/*global define, require */

/**
 * Get Editor Keyboard Shortcuts
 * @fileOverview Get Editor Keyboard Shortcuts <br />
 * Gets a map of keyboard shortcuts to command names for the current platform.
 * @author <a href="mailto:matthewkastor@gmail.com">
 *  Matthew Christopher Kastor-Inare III </a><br />
 *  ☭ Hial Atropa!! ☭
 */

define(function (require, exports, module) {
    "use strict";
    var keys = require("../../lib/keys");

    /**
     * Gets a map of keyboard shortcuts to command names for the current platform.
     * @author <a href="mailto:matthewkastor@gmail.com">
     *  Matthew Christopher Kastor-Inare III </a><br />
     *  ☭ Hial Atropa!! ☭
     * @param {ace.Editor} editor An editor instance.
     * @returns {Array} Returns an array of objects representing the keyboard
     *  shortcuts for the given editor.
     * @example
     * var getKbShortcuts = require('./get_keyboard_shortcuts');
     * console.log(getKbShortcuts(editor));
     * // [
     * //     {'command' : aCommand, 'key' : 'Control-d'},
     * //     {'command' : aCommand, 'key' : 'Control-d'}
     * // ]
     */
    module.exports.getEditorKeybordShortcuts = function (editor) {
        var KEY_MODS = keys.KEY_MODS;
        var keybindings = [];
        var commandMap = {};
        editor.keyBinding.$handlers.forEach(function (handler) {
            var ckb = handler.commandKeyBinding;
            for (var i in ckb) {
                var key = i.replace(/(^|-)\w/g, function (x) {
                    return x.toUpperCase();
                });
                var commands = ckb[i];
                if (!Array.isArray(commands))
                    commands = [commands];
                commands.forEach(function (command) {
                    if (typeof command != "string")
                        command = command.name
                    if (commandMap[command]) {
                        commandMap[command].key += "|" + key;
                    } else {
                        commandMap[command] = {key: key, command: command};
                        keybindings.push(commandMap[command]);
                    }
                });
            }
        });
        return keybindings;
    };

});