"no use strict";

var console = {
    log: function(msg) {
        postMessage({type: "log", data: msg});
    }
};
var window = {
    console: console
};

var normalizeModule = function(parentId, moduleName) {
    // normalize plugin requires
    if (moduleName.indexOf("!") !== -1) {
        var chunks = moduleName.split("!");
        return normalizeModule(parentId, chunks[0]) + "!" + normalizeModule(parentId, chunks[1]);
    }
    // normalize relative requires
    if (moduleName.charAt(0) == ".") {
        var base = parentId.split("/").slice(0, -1).join("/");
        var moduleName = base + "/" + moduleName;
        
        while(moduleName.indexOf(".") !== -1 && previous != moduleName) {
            var previous = moduleName;
            var moduleName = moduleName.replace(/\/\.\//, "/").replace(/[^\/]+\/\.\.\//, "");
        }
    }
    
    return moduleName;
};

var require = function(parentId, id) {
    var id = normalizeModule(parentId, id);
    
    var module = require.modules[id];
    if (module) {
        if (!module.initialized) {
            module.exports = module.factory().exports;
            module.initialized = true;
        }
        return module.exports;
    }
    
    var chunks = id.split("/");
    chunks[0] = require.tlns[chunks[0]] || chunks[0];
    var path = chunks.join("/") + ".js";
    
    require.id = id;
    importScripts(path);
    return require(parentId, id);    
};

require.modules = {};
require.tlns = {};

var define = function(id, deps, factory) {
    if (arguments.length == 2) {
        factory = deps;
    } else if (arguments.length == 1) {
        factory = id;
        id = require.id;
    }

    if (id.indexOf("text!") === 0) 
        return;
    
    var req = function(deps, factory) {
        return require(id, deps, factory);
    };

    require.modules[id] = {
        factory: function() {
            var module = {
                exports: {}
            };
            var returnExports = factory(req, module.exports, module);
            if (returnExports)
                module.exports = returnExports;
            return module;
        }
    };
};

function initBaseUrls(topLevelNamespaces) {
    require.tlns = topLevelNamespaces;
}

function initSender() {

    var EventEmitter = require(null, "ace/lib/event_emitter").EventEmitter;
    var oop = require(null, "ace/lib/oop");
    
    var Sender = function() {};
    
    (function() {
        
        oop.implement(this, EventEmitter);
                
        this.callback = function(data, callbackId) {
            postMessage({
                type: "call",
                id: callbackId,
                data: data
            });
        };
    
        this.emit = function(name, data) {
            postMessage({
                type: "event",
                name: name,
                data: data
            });
        };
        
    }).call(Sender.prototype);
    
    return new Sender();
}

var main;
var sender;

onmessage = function(e) {
    var msg = e.data;
    if (msg.command) {
        main[msg.command].apply(main, msg.args);
    }
    else if (msg.init) {        
        initBaseUrls(msg.tlns);
        require(null, "ace/lib/fixoldbrowsers");
        sender = initSender();
        var clazz = require(null, msg.module)[msg.classname];
        main = new clazz(sender);
    } 
    else if (msg.event && sender) {
        sender._emit(msg.event, msg.data);
    }
};