using Common.Messaging;
using CommunityToolkit.Mvvm.ComponentModel;
using CommunityToolkit.Mvvm.Messaging;
using MultiTerm.Protocols.Types;

namespace MultiTerm.Protocols.Serial;

public partial class SerialProtocolSettingsViewModel : ProtocolSettingsViewModel, ISerialProtocolSettings
{
    public override ProtocolType ProtocolType => ProtocolType.Serial;

    [ObservableProperty]
    private int baudRate = 115200;

    [ObservableProperty]
    private string portName = "";

    [ObservableProperty]
    private Parity parity = Parity.None;

    [ObservableProperty]
    private int dataBits = 8;

    [ObservableProperty]
    private StopBits stopBits = StopBits.One;

    [ObservableProperty]
    private Handshake handshake = Handshake.None;


    // TODO 
    public string NewlineSequenceOnSend => throw new NotImplementedException();

    public string NewlineOnReceivedSequence => throw new NotImplementedException();


    public SerialProtocolSettingsViewModel(IMessenger messenger) : base(messenger) { }

    public bool AreValid()
    {
        if (String.IsNullOrEmpty(this.PortName))
        {
            this.messenger.Send<IUserInterfaceMessage>(new ProtocolSettingsInvalidMessage(nameof(this.PortName), "Null or empty"));
            return false;
        }
        if (this.PortName.ToLower().StartsWith("com") == false) 
        {
            this.messenger.Send<IUserInterfaceMessage>(new ProtocolSettingsInvalidMessage(nameof(this.PortName), "Must start with COM"));
            return false;
        }
        if (this.DataBits < 5 && this.DataBits > 8 && this.DataBits != 16)
        {
            this.messenger.Send<IUserInterfaceMessage>(new ProtocolSettingsInvalidMessage(nameof(this.DataBits), "Must be 5...8 or 16"));
            return false;
        }

        return true;
    }
}