using InABox.WPF;
using PRS.Shared.Events;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;

namespace PRS.Shared;

public interface IEventEditorControl
{
    event Action? OnChanged;

    IEventData Data { get; }
}

public class EventEditorControl<TEvent, TDataModel> : Grid, IEventEditorControl
    where TEvent : IEvent<TDataModel>
    where TDataModel : IEventDataModel
{
    private EventData<TEvent, TDataModel> _data;
    public EventData<TEvent, TDataModel> Data
    {
        get
        {
            _data.Triggers = TriggerGrid.EventTriggers.ToList();
            _data.Actions = ActionGrid.EventActions.ToList();
            return _data;
        }
        set
        {
            _data = value;
        }
    }

    IEventData IEventEditorControl.Data => Data;

    private EventTriggerGrid<TEvent, TDataModel> TriggerGrid;
    private EventActionGrid<TEvent, TDataModel> ActionGrid;

    public event Action? OnChanged;

    public EventEditorControl(EventData<TEvent, TDataModel> evData)
    {
        Data = evData;

        var triggerLabelBorder = new Border
        {
            BorderBrush = Colors.Gray.ToBrush(),
            BorderThickness = new(0.75),
            Background = Colors.WhiteSmoke.ToBrush(),
            Child = new Label
            {
                Content = "Triggers",
                VerticalAlignment = System.Windows.VerticalAlignment.Center,
                HorizontalAlignment = System.Windows.HorizontalAlignment.Center
            }
        };

        var actionsLabelBorder = new Border
        {
            BorderBrush = Colors.Gray.ToBrush(),
            BorderThickness = new(0.75),
            Background = Colors.WhiteSmoke.ToBrush(),
            Child = new Label
            {
                Content = "Actions",
                VerticalAlignment = System.Windows.VerticalAlignment.Center,
                HorizontalAlignment = System.Windows.HorizontalAlignment.Center
            }
        };

        var separator = new StackPanel
        {
            Orientation = Orientation.Horizontal,
        };
        separator.Children.Add(new Separator
        {
            Style = (Style)Application.Current.TryFindResource(ToolBar.SeparatorStyleKey),
            Margin = new(3, 0, 3, 0)
        });

        TriggerGrid = new EventTriggerGrid<TEvent, TDataModel>(evData.Triggers)
        {
            Margin = new(0, 5, 0, 0)
        };
        ActionGrid = new EventActionGrid<TEvent, TDataModel>(evData.Actions, evData.Event.DataModelDefinition())
        {
            Margin = new(0, 5, 0, 0)
        };

        this.AddRow(GridUnitType.Auto);
        this.AddRow(GridUnitType.Star);

        var hasTriggers = evData.Event is not ScheduledEvent;

        if(!hasTriggers)
        {
            this.AddColumn(0);
            this.AddColumn(0);
        }
        else
        {
            this.AddColumn(GridUnitType.Star);
            this.AddColumn(GridUnitType.Auto);
        }
        this.AddColumn(GridUnitType.Star);

        if (hasTriggers)
        {
            this.AddChild(triggerLabelBorder, 0, 0);
            this.AddChild(separator, 0, 1, rowSpan: 2);
            this.AddChild(TriggerGrid, 1, 0);
        }
        this.AddChild(actionsLabelBorder, 0, 2);
        this.AddChild(ActionGrid, 1, 2);

        if (hasTriggers)
        {
            TriggerGrid.Refresh(true, true);
            TriggerGrid.OnChanged += Grid_OnChanged;
        }
        ActionGrid.Refresh(true, true);
        ActionGrid.OnChanged += Grid_OnChanged;
    }

    private void Grid_OnChanged(object? sender, EventArgs e)
    {
        OnChanged?.Invoke();
    }
}