using Chickensoft.AutoInject;
using Chickensoft.Introspection;
using Godot;
using System;
using System.Collections.Generic;
using System.Linq;
using Zennysoft.Game.Implementation;
using Zennysoft.Game.Ma;
using Zennysoft.Ma.Adapter;

[Meta(typeof(IAutoNode))]
public partial class ItemRescueMenu : Control
{
  public override void _Notification(int what) => this.Notify(what);

  [Dependency] private IPlayer _player => this.DependOn<IPlayer>();

  [Dependency] private IGame _game => this.DependOn<IGame>();

  [Dependency] private IGameRepo _gameRepo => this.DependOn<IGameRepo>();

  [Node] public Label ItemName { get; set; }

  [Node] public Label ItemFlavor { get; set; }

  [Node] public Label ItemStats { get; set; }

  [Node] public Button InteractButton { get; set; }

  [Node] public Button DropButton { get; set; }

  [Node] public Control ActionPanel { get; set; }

  private List<IItemSlot> ItemSlots;

  private List<Label> ItemCountLabels;

  private IItemSlot _currentlySelected;

  public event Action MenuClosing;

  #region ItemSlots
  [Node] public IItemSlot ItemSlot01 { get; set; }
  [Node] public IItemSlot ItemSlot02 { get; set; }
  [Node] public IItemSlot ItemSlot03 { get; set; }
  [Node] public IItemSlot ItemSlot04 { get; set; }
  [Node] public IItemSlot ItemSlot05 { get; set; }
  [Node] public IItemSlot ItemSlot06 { get; set; }
  [Node] public IItemSlot ItemSlot07 { get; set; }
  [Node] public IItemSlot ItemSlot08 { get; set; }
  [Node] public IItemSlot ItemSlot09 { get; set; }
  [Node] public IItemSlot ItemSlot10 { get; set; }

  [Node] public Label ItemCount01 { get; set; }
  [Node] public Label ItemCount02 { get; set; }
  [Node] public Label ItemCount03 { get; set; }
  [Node] public Label ItemCount04 { get; set; }
  [Node] public Label ItemCount05 { get; set; }
  [Node] public Label ItemCount06 { get; set; }
  [Node] public Label ItemCount07 { get; set; }
  [Node] public Label ItemCount08 { get; set; }
  [Node] public Label ItemCount09 { get; set; }
  [Node] public Label ItemCount10 { get; set; }
  #endregion

  public void OnResolved()
  {
    ItemSlots = [ItemSlot01, ItemSlot02, ItemSlot03, ItemSlot04, ItemSlot05, ItemSlot06, ItemSlot07, ItemSlot08, ItemSlot09, ItemSlot10];
    ItemCountLabels = [ItemCount01, ItemCount02, ItemCount03, ItemCount04, ItemCount05, ItemCount06, ItemCount07, ItemCount08, ItemCount09, ItemCount10];
    foreach (var slot in ItemSlots)
    {
      slot.ItemSelected += Slot_FocusEntered;
      slot.ItemPressed += Slot_ItemPressed;
    }
    VisibilityChanged += ResetInventoryState;
    InteractButton.Pressed += InteractButton_Pressed;
    DropButton.Pressed += DropButton_Pressed;
    _currentlySelected = ItemSlot01;
  }

  private void InteractButton_Pressed()
  {
    if (_currentlySelected != null)
    {
      _player.Inventory.PickUpItem(_currentlySelected.Item.Value);
      _game.RescuedItems.Items.Remove(_currentlySelected.Item.Value);
      CloseActionMenu();
      ResetInventoryState();
    }
  }

  private void DropButton_Pressed()
  {
    _game.RescuedItems.Items.Remove(_currentlySelected.Item.Value);
    ResetInventoryState();
  }

  public override void _Input(InputEvent @event)
  {
    if (!Visible)
      return;

    if (Input.IsActionJustPressed(GameInputs.Inventory))
      GetViewport().SetInputAsHandled();

    if (ActionPanel.Visible && Input.IsActionJustPressed(GameInputs.Interact))
    {
      CloseActionMenu();
      SfxDatabase.Instance.Play(SoundEffect.CancelUI);
      GetViewport().SetInputAsHandled();
    }
    else if (Input.IsActionJustPressed(GameInputs.Interact))
    {
      Hide();
      SfxDatabase.Instance.Play(SoundEffect.CancelUI);
      GetViewport().SetInputAsHandled();
      MenuClosing.Invoke();
    }
    if (!ActionPanel.Visible && Input.IsActionJustPressed(GameInputs.MoveUp))
    {
      if (ItemSlots.Any() && ItemSlots.First(x => x.Visible) != _currentlySelected)
        SfxDatabase.Instance.Play(SoundEffect.MoveUI);
    }
    if (!ActionPanel.Visible && Input.IsActionJustPressed(GameInputs.MoveDown))
    {
      if (ItemSlots.Any() && ItemSlots.Last(x => x.Visible) != _currentlySelected)
        SfxDatabase.Instance.Play(SoundEffect.MoveUI);
    }

    if (Input.IsActionJustPressed(GameInputs.MoveDown) && ActionPanel.Visible && InteractButton.HasFocus())
      SfxDatabase.Instance.Play(SoundEffect.MoveUI);
    if (Input.IsActionJustPressed(GameInputs.MoveUp) && ActionPanel.Visible && DropButton.HasFocus())
      SfxDatabase.Instance.Play(SoundEffect.MoveUI);
  }

  private void Slot_ItemPressed(IItemSlot slot)
  {
    var item = slot.Item.Value;

    InteractButton.Disabled = false;
    DropButton.Disabled = false;
    InteractButton.FocusMode = FocusModeEnum.All;
    DropButton.FocusMode = FocusModeEnum.All;
    ActionPanel.Show();
    InteractButton.GrabFocus();
  }

  private void ResetInventoryState()
  {
    foreach (var item in ItemSlots)
    {
      item.Hide();
      item.Disabled = true;
      item.FocusMode = FocusModeEnum.None;
      ItemFlavor.Text = string.Empty;
      ItemName.Text = string.Empty;
      ItemStats.Text = string.Empty;
    }

    foreach (var item in ItemCountLabels)
      item.Text = string.Empty;

    for (var i = 0; i < _game.RescuedItems.Items.Count; i++)
    {
      var item = _game.RescuedItems.Items[i];
      ItemSlots[i].Item.OnNext(item);
      ItemSlots[i].FocusMode = FocusModeEnum.All;
      ItemSlots[i].Disabled = false;
      ItemSlots[i].Show();
      if (item is IStackable stackable)
        ItemCountLabels[i].Text = $"x{stackable.Count.Value:D2}";
    }

    if (_player.Inventory.AtCapacity())
    {
      foreach (var item in ItemSlots)
      {
        item.Disabled = true;
        item.FocusMode = FocusModeEnum.None;
      }
    }
    else if (_currentlySelected != null)
      _currentlySelected.GrabFocus();
    else
      _currentlySelected = ItemSlots.First();
  }

  private void Slot_FocusEntered(IItemSlot slot)
  {
    if (_currentlySelected.Item.Value == null)
      return;
    _currentlySelected = slot;
    var item = slot.Item.Value;
    ItemName.Text = item.ItemName;
    ItemFlavor.Text = item.Description;
  }

  private void CloseActionMenu()
  {
    _currentlySelected.GrabFocus();
    ActionPanel.Hide();
  }
}