//-----------------------------------------------------------------------------
// Copyright (c) 2002 Ryerson University. All Rights Reserved.
//
// 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.
//-----------------------------------------------------------------------------
// This software was written in order to experiment with the Macromedia 
// Flash Communication Server MX and is not intended to demonstrate the best
// way to write code for Flash or FlashCom. 

// Root variables
currentChoice  = null; // Current short name for the application/instance 
                       // the user wants to connect to.
nc = null;             // NetConnection reference.
traceBuffer_so = null; // Remote shared object belonging to the
                       // application/instance we are connected to.
roomList_so    = null; // Remote shared object belonging to the 
                       // lobby00/lobby instance but also proxied by
                       // the rooms00/room_x instances

// Left align the text in the four push buttons.
pbLobby.setStyleProperty("textAlign", 'left');
pbRoom_1.setStyleProperty("textAlign", 'left');
pbRoom_2.setStyleProperty("textAlign", 'left');
pbRoom_3.setStyleProperty("textAlign", 'left');

/** 
 * Simple replacement for the trace function.
 * Writes into the tClientTrace text field
 * and scrolls it to the bottom.
 **/
function writeln(str){
  tClientTrace.text += str + "\n";
  tClientTrace.scroll = tClientTrace.maxscroll;
}

/**
 * showStatus loops through the indicator movie clips
 * and uses them to show the current network status.
 * This could be done more elegantly using OOP and 
 * avoiding eval.
 **/
function showStatus(appInstance, status){
   // Closed, Waiting, Open.
   appInstance = 'i' + appInstance;
   iNames = ["iLobby", "iein", "izwei", "idrei"];
   for (var i in iNames){
      if (appInstance == iNames[i]){
         eval(iNames[i]).gotoAndStop(status);
      }
      else{
         eval(iNames[i]).gotoAndStop("Closed");
      }
   }
}

/**
 * When a change occurs in the traceBuffer_so get the full text from the
 * buffer property and display it in the remote application (tInstanceTrace)
 * window.
 **/
function traceSO_onSync(list){
   tInstanceTrace.text = this.data.buffer; 
   tInstanceTrace.scroll = tInstanceTrace.maxscroll;
}

/**
 * When a change occurs in the roomList_so get the integer stored in
 * each property and display it in the client trace window.
 * Warning: this is a very very simple scheme. Normally you wouldn't just
 * store a single integer in each property of a room list. You would be
 * more likely to store an object with more information than just the number
 * of visitors.
 **/
function roomSO_onSync(list){
   var totalClients = 0;
   for (var p in this.data){
      writeln("There are " + this.data[p] + " visitor(s) in " + p + ".");
      totalClients += this.data[p];
   }
   writeln("There are a total of " + totalClients + " client(s) connected to the system.");
}

/**
 * Whenever a new network connection is established this is called to
 * setup the remote objects. 
 **/
function initSharedObjects(){
   traceBuffer_so = SharedObject.getRemote('traceBuffer', nc.uri);
   traceBuffer_so.onSync = traceSO_onSync;
   traceBuffer_so.connect(nc);
   roomList_so = SharedObject.getRemote('roomList', nc.uri);
   roomList_so.onSync = roomSO_onSync;
   roomList_so.connect(nc);
}

/**
 * onStatus handler for the one NetConnection object used here.
 * Reports each info.code and then adjusts the indicators to
 * reflect the connection status. If the connection has just
 * been established initSharedObjects is called.
 **/
function NetConnection_onStatus(info){
   writeln ("NetConnection.onStatus> info.code: " + info.code);
   if (nc.uri.length > 0){
      writeln ("NetConnection.onStatus> nc.uri: " + nc.uri);
   }
   if (this.isConnected){
      showStatus(currentChoice, "Open");
   }
   else{ 
      showStatus(currentChoice, "Closed");
   }
   
   if (info.code == "NetConnection.Connect.Success"){
      initSharedObjects();
   }
}



// Create a map of the last part of the button labels
// to the relative rtmp addresses.
addressHash = { Lobby: "rtmp:/lobby_rooms/lobby", 
                ein: "rtmp:/lobby_rooms/room_1",
                zwei: "rtmp:/lobby_rooms/room_2",
                drei: "rtmp:/lobby_rooms/room_3" };

/**
 * Handle push button connection requests.
 **/             
function doConnect(btn){

   // Get the last part of the button label.
   currentChoice = btn.label.split(' ').pop();
   
   // If there is another connection drop it.
   if (nc){
      nc.close();
   }
   // Otherwise create a network connection and
   // and setup the onStatus handler.
   else{
      nc = new NetConnection();
      nc.onStatus = NetConnection_onStatus;
   }
   var result = nc.connect(addressHash[currentChoice]);
   if (result){
      showStatus(currentChoice, "Waiting");
   }
   
}