using System;
using System.Collections.Generic;
using PepperDash.Essentials.Core.DeviceTypeInterfaces;

namespace PepperDash.Essentials.Devices.Common.Displays;

public class MockDisplayInputs : ISelectableItems<string>
{
    private Dictionary<string, ISelectableItem> _items;

    public Dictionary<string, ISelectableItem> Items
    {
        get
        {
            return _items;
        }
        set
        {
            if (_items == value)
                return;

            _items = value;

            ItemsUpdated?.Invoke(this, null);
        }
    }

    private string _currentItem;

    public string CurrentItem
    { 
        get
        {
            return _currentItem;
        }
        set
        {
            if (_currentItem == value)
                return;

            _currentItem = value;

            CurrentItemChanged?.Invoke(this, null);
        }
    }

    public event EventHandler ItemsUpdated;
    public event EventHandler CurrentItemChanged;
}

public class MockDisplayInput : ISelectableItem
{
    private MockDisplay _parent;

    private bool _isSelected;
    
    public bool IsSelected
    {
        get
        {
            return _isSelected;
        }
        set
        {
            if (_isSelected == value)
                return;

            _isSelected = value;

            ItemUpdated?.Invoke(this, null);
        }
    }

    public string Name { get; set; }

    public string Key { get; set; }

    public event EventHandler ItemUpdated;

    public MockDisplayInput(string key, string name, MockDisplay parent)
    {
        Key = key;
        Name = name;
        _parent = parent;
    }

    public void Select()
    {
        if (!_parent.PowerIsOnFeedback.BoolValue) _parent.PowerOn();

        foreach(var input in _parent.Inputs.Items)
        {
            input.Value.IsSelected = input.Key == this.Key;
        }
    }
}