using System;
using System.Reactive;
using Avalonia.Media;
using Npgsql;
using pgLabII.Model;
using ReactiveUI;

namespace pgLabII.ViewModels;

// UI ViewModel that wraps the persistence entity
public class ServerConfigurationViewModel : ReactiveObject
{
    private readonly ServerConfigurationEntity _entity;

    public ServerConfigurationViewModel(ServerConfigurationEntity entity)
    {
        _entity = entity ?? throw new ArgumentNullException(nameof(entity));
        EditCommand = ReactiveCommand.Create(() =>
        {
            var window = new Views.EditServerConfigurationWindow(new(this)) { New = false };
            window.Show();
        });
        ExploreCommand = ReactiveCommand.Create(() =>
        {
            var window = new Views.SingleDatabaseWindow(entity);
            window.Show();
        });
    }

    public ServerConfigurationEntity Entity => _entity;

    public Guid Id
    {
        get => _entity.Id; 
        set { if (_entity.Id != value) { _entity.Id = value; this.RaisePropertyChanged(); } }
    }

    public string Name
    {
        get => _entity.Name; 
        set { if (_entity.Name != value) { _entity.Name = value; this.RaisePropertyChanged(); } }
    }

    public string Host
    {
        get => _entity.Host;
        set { if (_entity.Host != value) { _entity.Host = value; this.RaisePropertyChanged(); } }
    }

    public ushort Port
    {
        get => _entity.Port;
        set { if (_entity.Port != value) { _entity.Port = value; this.RaisePropertyChanged(); } }
    }

    public string InitialDatabase
    {
        get => _entity.InitialDatabase;
        set { if (_entity.InitialDatabase != value) { _entity.InitialDatabase = value; this.RaisePropertyChanged(); } }
    }

    public SslMode DefaultSslMode
    {
        get => _entity.SslMode;
        set { if (_entity.SslMode != value) { _entity.SslMode = value; this.RaisePropertyChanged(); } }
    }

    public bool ColorEnabled
    {
        get => _entity.ColorEnabled;
        set { if (_entity.ColorEnabled != value) { _entity.ColorEnabled = value; this.RaisePropertyChanged(); this.RaisePropertyChanged(nameof(BackgroundBrush)); } }
    }

    public Color Color
    {
        get => Color.FromUInt32((uint)_entity.ColorArgb);
        set
        {
            var argb = unchecked((int)value.ToUInt32());
            if (_entity.ColorArgb != argb)
            {
                _entity.ColorArgb = argb; 
                this.RaisePropertyChanged(); 
                this.RaisePropertyChanged(nameof(BackgroundBrush));
            }
        }
    }

    public IBrush? BackgroundBrush => ColorEnabled ? new SolidColorBrush(Color) : null;

    public string UserName
    {
        get => _entity.UserName;
        set
        {
            if (_entity.UserName != value)
            {
                _entity.UserName = value;
                this.RaisePropertyChanged();
            }
                
        }
    }
    
    public string Password
    {
        get => _entity.Password;
        set
        {
            if (_entity.Password != value)
            {
                _entity.Password = value;
                this.RaisePropertyChanged();
            }
                
        }
    }


    public ReactiveCommand<Unit, Unit> EditCommand { get; }
    public ReactiveCommand<Unit, Unit> ExploreCommand { get; }
}