using System.ComponentModel;
using System.Runtime.CompilerServices;
using Command;
using InABox.Core;
using InABox.Rpc;

namespace Receiver;

public class MainWindowViewModel : INotifyPropertyChanged
{
    private bool _lightOn;
    private string _lightHex;

    public bool LightOn
    {
        get => _lightOn;
        set
        {
            _lightOn = value;
            if (LightOn == false) LightVisibility = "Hidden";
            else LightVisibility = "Visible";
            OnPropertyChanged(nameof(LightVisibility));
        }
    }

    public string LightVisibility { get; set; }

    public string LightHex
    {
        get => _lightHex;
        set 
        {
            _lightHex = value;
            OnPropertyChanged(nameof(LightHex));
        }
    }

    RpcServerPipeTransport Transport { get; set; }

    public MainWindowViewModel()
    {
        Transport = new RpcServerPipeTransport("SwitchTransport");
        Transport.AddHandler<MainWindowViewModel, SwitchCommand, SwitchParameters, SwitchResult>(new SwitchHandler(this));
        Transport.AddHandler<MainWindowViewModel, ColourCommand, ColourParameters, ColourResult>(new ColourHandler(this));
        Transport.Start();
        
        LightOn = true;

        LightHex = "#0000FF";
        
        if (LightOn == false) LightVisibility = "Hidden";
        else LightVisibility = "Visible";
    }

    public event PropertyChangedEventHandler? PropertyChanged;

    protected virtual void OnPropertyChanged([CallerMemberName] string? propertyName = null)
    {
        PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
    }

    protected bool SetField<T>(ref T field, T value, [CallerMemberName] string? propertyName = null)
    {
        if (EqualityComparer<T>.Default.Equals(field, value)) return false;
        field = value;
        OnPropertyChanged(propertyName);
        return true;
    }
}

public class SwitchHandler : RpcCommandHandler<MainWindowViewModel, SwitchCommand, SwitchParameters, SwitchResult>
{
    public SwitchHandler(MainWindowViewModel sender) : base(sender)
    {
    }

    protected override SwitchResult Execute(IRpcSession session, SwitchParameters parameters, Logger logger)
    {
        Sender.LightOn = parameters.Active;

        var result = new SwitchResult();
        result.LightOn = parameters.Active;
        return result;
    }
}

public class ColourHandler : RpcCommandHandler<MainWindowViewModel, ColourCommand, ColourParameters, ColourResult>
{
    public ColourHandler(MainWindowViewModel sender) : base(sender)
    {
    }

    protected override ColourResult Execute(IRpcSession session, ColourParameters parameters, Logger logger)
    {
        Sender.LightHex = parameters.Hex;

        var result = new ColourResult();
        result.HexValue = parameters.Hex;
        return result;
    }
}