using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Tango.BL;
using Tango.BL.Entities;
using Tango.Integration.Operation;
using Tango.PMR.Integration;
using Tango.Settings;
using Tango.Transport.Adapters;
using Tango.Transport.Transporters;

namespace Tango.Integration.ExternalBridge
{
    /// <summary>
    /// Represents an external bridge USB client.
    /// </summary>
    /// <remarks>
    /// This isn't really an external bridge client, but merely a transporter for communicating with a Tango machine embedded device.
    /// </remarks>
    /// <seealso cref="Tango.Transport.Transporters.BasicTransporter" />
    /// <seealso cref="Tango.Integration.ExternalBridge.IExternalBridgeClient" />
    public class ExternalBridgeUsbClient : MachineOperator, IExternalBridgeClient
    {
        private String _serialNumber;
        /// <summary>
        /// Gets the machine serial number.
        /// </summary>
        public String SerialNumber
        {
            get { return _serialNumber; }
            set
            {
                _serialNumber = value;
                RaisePropertyChangedAuto();
            }
        }

        private String _comPort;
        /// <summary>
        /// Gets or sets the serial COM port.
        /// </summary>
        public String ComPort
        {
            get { return _comPort; }
            set { _comPort = value; RaisePropertyChangedAuto(); }
        }

        private UsbSerialBaudRates _baudRate;
        /// <summary>
        /// Gets or sets the baud rate.
        /// </summary>
        public UsbSerialBaudRates BaudRate
        {
            get { return _baudRate; }
            set { _baudRate = value; RaisePropertyChangedAuto(); }
        }

        private String _Device;
        /// <summary>
        /// Gets or sets the USB device name.
        /// </summary>
        public String Device
        {
            get { return _Device; }
            set { _Device = value; RaisePropertyChangedAuto(); }
        }

        /// <summary>
        /// Gets or sets a value indicating whether transport compression is required by the remote machine.
        /// </summary>
        public bool CompressionEnabled { get; set; }

        /// <summary>
        /// Connects the transport component.
        /// </summary>
        /// <returns></returns>
        public override async Task Connect()
        {
            if (Status != MachineStatuses.Upgrading)
            {
                await Disconnect();
                Adapter = new UsbTransportAdapter(ComPort) { BaudRate = BaudRate };
            }
            await base.Connect();
        }

        /// <summary>
        /// Gets a value indicating whether this client requires authentication.
        /// </summary>
        public bool RequiresAuthentication => false;

        /// <summary>
        /// Initializes a new instance of the <see cref="ExternalBridgeUsbClient"/> class.
        /// </summary>
        /// <param name="comPort">The COM port.</param>
        /// <param name="device">The device.</param>
        public ExternalBridgeUsbClient(String comPort, String device,UsbSerialBaudRates baudRate = UsbSerialBaudRates.BR_115200)
        {
            ComponentName = $"External Bridge USB Client {_component_counter++}";
            ComPort = comPort;
            Device = device;
            BaudRate = baudRate;
            UseKeepAlive = false;
            EnableDiagnostics = true;
        }

        /// <summary>
        /// Returns a <see cref="System.String" /> that represents this instance.
        /// </summary>
        /// <returns>
        /// A <see cref="System.String" /> that represents this instance.
        /// </returns>
        public override string ToString()
        {
            return Device;
        }

        /// <summary>
        /// Gets the database machine associated with this client.
        /// </summary>
        public Machine Machine { get; private set; }

        /// <summary>
        /// Sets the database machine.
        /// </summary>
        /// <param name="machine">The machine.</param>
        public void SetMachine(Machine machine)
        {
            Machine = machine;
        }
    }
}