/*
 * This file is part of the libCEC(R) library.
 *
 * libCEC(R) is Copyright (C) 2011-2013 Pulse-Eight Limited.  All rights reserved.
 * libCEC(R) is an original work, containing original code.
 *
 * libCEC(R) is a trademark of Pulse-Eight Limited.
 *
 * This program is dual-licensed; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 *
 *
 * Alternatively, you can license this library under a commercial license,
 * please contact Pulse-Eight Licensing for more information.
 *
 * For more information contact:
 * Pulse-Eight Licensing       <license@pulse-eight.com>
 *     http://www.pulse-eight.com/
 *     http://www.pulse-eight.net/
 */

using System;
using System.Text;
using CecSharp;

namespace CecSharpClient
{
  class CecSharpClient : CecCallbackMethods
  {
    public CecSharpClient()
    {
      Config = new LibCECConfiguration();
      Config.DeviceTypes.Types[0] = CecDeviceType.RecordingDevice;
      Config.DeviceName = "CEC Tester";
      Config.ClientVersion = CecClientVersion.CurrentVersion;
      Config.SetCallbacks(this);
      LogLevel = (int)CecLogLevel.All;

      Lib = new LibCecSharp(Config);
      Lib.InitVideoStandalone();

      Console.WriteLine("CEC Parser created - libCEC version " + Lib.ToString(Config.ServerVersion));
    }

    public override int ReceiveCommand(CecCommand command)
    {
      return 1;
    }

    public override int ReceiveKeypress(CecKeypress key)
    {
      return 1;
    }

    public override int ReceiveLogMessage(CecLogMessage message)
    {
      if (((int)message.Level & LogLevel) == (int)message.Level)
      {
        string strLevel = "";
        switch (message.Level)
        {
          case CecLogLevel.Error:
            strLevel = "ERROR:   ";
            break;
          case CecLogLevel.Warning:
            strLevel = "WARNING: ";
            break;
          case CecLogLevel.Notice:
            strLevel = "NOTICE:  ";
            break;
          case CecLogLevel.Traffic:
            strLevel = "TRAFFIC: ";
            break;
          case CecLogLevel.Debug:
            strLevel = "DEBUG:   ";
            break;
          default:
            break;
        }
        string strLog = string.Format("{0} {1,16} {2}", strLevel, message.Time, message.Message);
        Console.WriteLine(strLog);
      }
      return 1;
    }

      public bool Connect(int timeout)
    {
      CecAdapter[] adapters = Lib.FindAdapters(string.Empty);
      if (adapters.Length > 0)
        return Connect(adapters[0].ComPort, timeout);
      else
      {
        Console.WriteLine("Did not find any CEC adapters");
        return false;
      }
    }

    public bool Connect(string port, int timeout)
    {
      return Lib.Open(port, timeout);
    }

    public void Close()
    {
      Lib.Close();
    }

    public void ListDevices()
    {
      int iAdapter = 0;
      foreach (CecAdapter adapter in Lib.FindAdapters(string.Empty))
      {
        Console.WriteLine("Adapter:  " + iAdapter++);
        Console.WriteLine("Path:     " + adapter.Path);
        Console.WriteLine("Com port: " + adapter.ComPort);
      }
    }

    void ShowConsoleHelp()
    {
      Console.WriteLine(
        "================================================================================" + Environment.NewLine +
        "Available commands:" + Environment.NewLine +
        Environment.NewLine +
        "[tx] {bytes}              transfer bytes over the CEC line." + Environment.NewLine +
        "[txn] {bytes}             transfer bytes but don't wait for transmission ACK." + Environment.NewLine +
        "[on] {address}            power on the device with the given logical address." + Environment.NewLine +
        "[standby] {address}       put the device with the given address in standby mode." + Environment.NewLine +
        "[la] {logical_address}    change the logical address of the CEC adapter." + Environment.NewLine +
        "[pa] {physical_address}   change the physical address of the CEC adapter." + Environment.NewLine +
        "[osd] {addr} {string}     set OSD message on the specified device." + Environment.NewLine +
        "[ver] {addr}              get the CEC version of the specified device." + Environment.NewLine +
        "[ven] {addr}              get the vendor ID of the specified device." + Environment.NewLine +
        "[lang] {addr}             get the menu language of the specified device." + Environment.NewLine +
        "[pow] {addr}              get the power status of the specified device." + Environment.NewLine +
        "[poll] {addr}             poll the specified device." + Environment.NewLine +
        "[scan]                    scan the CEC bus and display device info" + Environment.NewLine +
        "[mon] {1|0}               enable or disable CEC bus monitoring." + Environment.NewLine +
        "[log] {1 - 31}            change the log level. see cectypes.h for values." + Environment.NewLine +
        "[ping]                    send a ping command to the CEC adapter." + Environment.NewLine +
        "[bl]                      to let the adapter enter the bootloader, to upgrade" + Environment.NewLine +
        "                          the flash rom." + Environment.NewLine +
        "[r]                       reconnect to the CEC adapter." + Environment.NewLine +
        "[h] or [help]             show this help." + Environment.NewLine +
        "[q] or [quit]             to quit the CEC test client and switch off all" + Environment.NewLine +
        "                          connected CEC devices." + Environment.NewLine +
        "================================================================================");
    }

    public void MainLoop()
    {
      bool bContinue = true;
      string command;
      while (bContinue)
      {
        Console.WriteLine("waiting for input");

        command = Console.ReadLine();
        if (command != null && command.Length == 0)
          continue;
        string[] splitCommand = command.Split(' ');
        if (splitCommand[0] == "tx" || splitCommand[0] == "txn")
        {
          CecCommand bytes = new CecCommand();
          for (int iPtr = 1; iPtr < splitCommand.Length; iPtr++)
          {
            bytes.PushBack(byte.Parse(splitCommand[iPtr], System.Globalization.NumberStyles.HexNumber));
          }

          if (command == "txn")
            bytes.TransmitTimeout = 0;

          Lib.Transmit(bytes);
        }
        else if (splitCommand[0] == "on")
        {
          if (splitCommand.Length > 1)
            Lib.PowerOnDevices((CecLogicalAddress)byte.Parse(splitCommand[1], System.Globalization.NumberStyles.HexNumber));
          else
            Lib.PowerOnDevices(CecLogicalAddress.Broadcast);
        }
        else if (splitCommand[0] == "standby")
        {
          if (splitCommand.Length > 1)
            Lib.StandbyDevices((CecLogicalAddress)byte.Parse(splitCommand[1], System.Globalization.NumberStyles.HexNumber));
          else
            Lib.StandbyDevices(CecLogicalAddress.Broadcast);
        }
        else if (splitCommand[0] == "poll")
        {
          bool bSent = false;
          if (splitCommand.Length > 1)
            bSent = Lib.PollDevice((CecLogicalAddress)byte.Parse(splitCommand[1], System.Globalization.NumberStyles.HexNumber));
          else
            bSent = Lib.PollDevice(CecLogicalAddress.Broadcast);
          if (bSent)
            Console.WriteLine("POLL message sent");
          else
            Console.WriteLine("POLL message not sent");
        }
        else if (splitCommand[0] == "la")
        {
          if (splitCommand.Length > 1)
            Lib.SetLogicalAddress((CecLogicalAddress)byte.Parse(splitCommand[1], System.Globalization.NumberStyles.HexNumber));
        }
        else if (splitCommand[0] == "pa")
        {
          if (splitCommand.Length > 1)
            Lib.SetPhysicalAddress(ushort.Parse(splitCommand[1], System.Globalization.NumberStyles.HexNumber));
        }
        else if (splitCommand[0] == "osd")
        {
          if (splitCommand.Length > 2)
          {
            StringBuilder osdString = new StringBuilder();
            for (int iPtr = 1; iPtr < splitCommand.Length; iPtr++)
            {
              osdString.Append(splitCommand[iPtr]);
              if (iPtr != splitCommand.Length - 1)
                osdString.Append(" ");
            }
            Lib.SetOSDString((CecLogicalAddress)byte.Parse(splitCommand[1], System.Globalization.NumberStyles.HexNumber), CecDisplayControl.DisplayForDefaultTime, osdString.ToString());
          }
        }
        else if (splitCommand[0] == "ping")
        {
          Lib.PingAdapter();
        }
        else if (splitCommand[0] == "mon")
        {
          bool enable = splitCommand.Length > 1 ? splitCommand[1] == "1" : false;
          Lib.SwitchMonitoring(enable);
        }
        else if (splitCommand[0] == "bl")
        {
          Lib.StartBootloader();
        }
        else if (splitCommand[0] == "lang")
        {
          if (splitCommand.Length > 1)
          {
            string language = Lib.GetDeviceMenuLanguage((CecLogicalAddress)byte.Parse(splitCommand[1], System.Globalization.NumberStyles.HexNumber));
            Console.WriteLine("Menu language: " + language);
          }
        }
        else if (splitCommand[0] == "ven")
        {
          if (splitCommand.Length > 1)
          {
            CecVendorId vendor = Lib.GetDeviceVendorId((CecLogicalAddress)byte.Parse(splitCommand[1], System.Globalization.NumberStyles.HexNumber));
            Console.WriteLine("Vendor ID: " + Lib.ToString(vendor));
          }
        }
        else if (splitCommand[0] == "ver")
        {
          if (splitCommand.Length > 1)
          {
            CecVersion version = Lib.GetDeviceCecVersion((CecLogicalAddress)byte.Parse(splitCommand[1], System.Globalization.NumberStyles.HexNumber));
            Console.WriteLine("CEC version: " + Lib.ToString(version));
          }
        }
        else if (splitCommand[0] == "pow")
        {
          if (splitCommand.Length > 1)
          {
            CecPowerStatus power = Lib.GetDevicePowerStatus((CecLogicalAddress)byte.Parse(splitCommand[1], System.Globalization.NumberStyles.HexNumber));
            Console.WriteLine("power status: " + Lib.ToString(power));
          }
        }
        else if (splitCommand[0] == "r")
        {
          Console.WriteLine("closing the connection");
          Lib.Close();

          Console.WriteLine("opening a new connection");
          Connect(10000);

          Console.WriteLine("setting active source");
          Lib.SetActiveSource(CecDeviceType.PlaybackDevice);
        }
        else if (splitCommand[0] == "scan")
        {
          Console.WriteLine("CEC bus information");
          Console.WriteLine("===================");
          CecLogicalAddresses addresses = Lib.GetActiveDevices();
          for (int iPtr = 0; iPtr < addresses.Addresses.Length; iPtr++)
          {
            CecLogicalAddress address = (CecLogicalAddress)iPtr;
            if (!addresses.IsSet(address))
              continue;

            CecVendorId iVendorId = Lib.GetDeviceVendorId(address);
            bool bActive = Lib.IsActiveDevice(address);
            ushort iPhysicalAddress = Lib.GetDevicePhysicalAddress(address);
            string strAddr = string.Format("{0,4:X}", iPhysicalAddress);
            CecVersion iCecVersion = Lib.GetDeviceCecVersion(address);
            CecPowerStatus power = Lib.GetDevicePowerStatus(address);
            string osdName = Lib.GetDeviceOSDName(address);
            string lang = Lib.GetDeviceMenuLanguage(address);

            StringBuilder output = new StringBuilder();
            output.AppendLine("device #" + iPtr + ": " + Lib.ToString(address));
            output.AppendLine("address:       " + strAddr);
            output.AppendLine("active source: " + (bActive ? "yes" : "no"));
            output.AppendLine("vendor:        " + Lib.ToString(iVendorId));
            output.AppendLine("osd string:    " + osdName);
            output.AppendLine("CEC version:   " + Lib.ToString(iCecVersion));
            output.AppendLine("power status:  " + Lib.ToString(power));
            if (!string.IsNullOrEmpty(lang))
              output.AppendLine("language:      " + lang);

            Console.WriteLine(output.ToString());
          }
        }
        else if (splitCommand[0] == "h" || splitCommand[0] == "help")
          ShowConsoleHelp();
        else if (splitCommand[0] == "q" || splitCommand[0] == "quit")
          bContinue = false;
        else if (splitCommand[0] == "log" && splitCommand.Length > 1)
          LogLevel = int.Parse(splitCommand[1]);        
      }
    }

    static void Main(string[] args)
    {
      CecSharpClient p = new CecSharpClient();
      if (p.Connect(10000))
      {
        p.MainLoop();
      }
      else
      {
        Console.WriteLine("Could not open a connection to the CEC adapter");
      }
    }

    private int                 LogLevel;
    private LibCecSharp         Lib;
    private LibCECConfiguration Config;
  }
}