/**
 * V8Debugger
 * 
 * Copyright (c) 2010 Ajax.org B.V.
 * 
 * The MIT License (MIT)
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 * IN THE SOFTWARE.
 */
define(function(require, exports, module) {
"use strict";

var DevToolsMessage = require("./DevToolsMessage");

var DevToolsService = module.exports = function(msgStream) {
    this.$msgStream = msgStream;
    this.$pending = [];

    var self = this;
    this.$msgStream.on("message", function(e) {
        var response = e.data;
        if (response.getHeaders()["Tool"] !== "DevToolsService")
            return;

        if (self.$pending.length)
            self.$pending.shift()(JSON.parse(response.getContent()).data);
    });
};

(function() {

    this.ping = function(callback) {
        this.$send("ping", callback);
    };

    this.getVersion = function(callback) {
        this.$send("version", callback);
    };

    this.listTabs = function(callback) {
        this.$send("list_tabs", callback);
    };

    this.$send = function(command, callback) {
        var msg = new DevToolsMessage(null, '{"command":"' + command + '"}');
        this.$msgStream.sendRequest(msg);
        this.$pending.push(callback);
    };

}).call(DevToolsService.prototype);

});