plugin.Name = "OnkyoReceiverTX_NR838";
plugin.OnChangeRequest = onChangeRequest;
plugin.OnConnect = onConnect;
plugin.OnDisconnect = onDisconnect;
plugin.OnPoll = onPoll;
plugin.OnSynchronizeDevices = onSynchronizeDevices;
plugin.PollingInterval = -1;
plugin.DefaultSettings = { "Host": "192.168.4.7", "Port": 60128 };

var deviceId = "1";
var socket = new TCPClient();

var commands = {
    "InputBD/DVD": [0x49, 0x53, 0x43, 0x50, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x08, 0x01, 0x00, 0x00, 0x00, 0x21, 0x31, 0x53, 0x4c, 0x49, 0x31, 0x30, 0x0d],
    "InputSKY": [0x49,0x53,0x43,0x50,0x00,0x00,0x00,0x10,0x00,0x00,0x00,0x08,0x01,0x00,0x00,0x00,0x21,0x31,0x53,0x4c,0x49,0x32,0x33,0x0D,0x0A],
    "ScreenDown": [0xFF, 0xEE, 0xEE, 0xEE, 0xEE],
}

function onChangeRequest(device, attribute, value) {
    if (attribute != "MediaCommand")
        throw "Invalid attribute";

    var command = commands[value];
    if (!command)
        throw "Invalid command";

    socket.send(command);
}

function onConnect() {
    socket.connect(plugin.Settings["Host"], parseInt(plugin.Settings["Port"]));

    var device = plugin.Devices[deviceId];
    if (device != null) {
        device.SupportedMediaCommands = Object.keys(commands);
    }
}

function onDisconnect() {
    socket.close();
}

function onPoll() {
}

function onSynchronizeDevices() {
    var device = new Device();
    device.Id = deviceId;
    device.DisplayName = "OnkyoTXNR838";
    device.Capabilities = ["MediaControl"];
    device.Attributes = [];
    plugin.Devices[deviceId] = device;
}