using System;
using System.Collections.Generic;
using System.Linq;
using Godot;
using GodotGridInventory.Code.Grid;
using GodotGridInventory.Code.UI;
using InventoryGrid = GodotGridInventory.Code.Grid.InventoryGrid;

namespace GodotGridInventory.Code;

public partial class InventoryController : Control
{
    public static int PLAYER_INVENTORY_ID = 0;
    #region Private Variables
    private readonly ItemDatabase _itemDatabase = ItemDatabase.Instance;
    
    private int _inventoryIdCounter = 0;
    private Inventory _inventoryUI;
    #endregion
    
    [Export] public float CellSize { get; set; } = 25;
    [Export] public PackedScene InventoryUIResource { get; set; }
    [Export] public PackedScene InventoryGridUIResource { get; set; }
    [Export] public PackedScene InventoryGridItemUIResource { get; set; }
    
    public override void _Ready()
    {
        _inventoryUI = InventoryUIResource.Instantiate() as Inventory;
        _inventoryUI.InitializeInventory(this);
        AddChild(_inventoryUI);
        AddInventory("Player Inventory", new Vector2(10, 10), new string[] {"item_small","item_small","item_small","item_small","item_small","item_small","item_small","item_small","item_small","item_small","item_small","item_small","item_small","item_small","item_small","item_small","item_small"});
        base._Ready();
    }
    
    #region Public Methods
    public List<InventoryModel> GetInventoriesLoaded()
    {
        var result = _inventories.Values.ToList();
        GD.Print($"Getting list of all _inventoriesLoaded loaded into memory ({result.Count}).");
        return result;
    }
    
    public bool UpdateInventory(int id, InventoryModel inventoryModel)
    {
        var inventory = _inventories[id];
        if(inventory == null)
        {
            GD.PrintErr($"Inventory not found with id {id}.");
            return false;
        }

        _inventories[id] = inventoryModel;
        return true;
    }

    public InventoryModel GetInventory(int id)
    {
        var inventory = _inventories[id];
        if(inventory == null)
        {
            GD.PrintErr($"Inventory not found with id {id}.");
            return null;
        }

        var result = _inventories[id];
        return result;
    }
    
    public void AddInventory(string name, Vector2 size, string[] items)
    {
        var inventoryGrid = new InventoryGrid(this, size);
        var gridInterface = InventoryGridUIResource.Instantiate() as UI.InventoryGrid;
        _inventoryUI.AddChild(gridInterface);
        gridInterface.InitializeInventoryGrid(inventoryGrid, this);
        var itemGraphics = new List<InventoryGridItem>();
        _inventories.Add(_inventoryIdCounter, new InventoryModel()
        {
            Id = _inventoryIdCounter,
            Name = name,
            Items = items.Select( item=> _itemDatabase.GetItemConfiguration(item)).ToList(),
            Cells = inventoryGrid.GridCells,
            Open = false,
            Grid = inventoryGrid,
            GridInterface = gridInterface,
            GridWidth = (int)Math.Round(size.X),
            GridHeight = (int)Math.Round(size.Y)
        });
        foreach (var item in items)
        {
            var itemConfig = _itemDatabase.GetItemConfiguration(item);
            var itemGraphic = InventoryGridItemUIResource.Instantiate() as InventoryGridItem;
            itemGraphic.InitializeItem(itemConfig, this);
            gridInterface.AddItem(itemGraphic,false);
            itemGraphics.Add(itemGraphic);
        }

        _inventoryIdCounter++;
    }

    public bool RemoveInventory(int Id)
    {
        var inventory = _inventories[Id];
        if(inventory == null)
        {
            GD.PrintErr($"Inventory not found with id {Id}.");
            return false;
        }
        inventory.GridInterface.QueueFree();
        _inventories.Remove(Id);
        GD.Print($"Inventory {inventory.Name} with id {inventory.Id} removed.");
        return true;
    }
    
    public bool OpenInventory(int Id)
    {
        var inventory = _inventories[Id];
        if(inventory == null)
        {
            GD.PrintErr($"Inventory not found with id {Id}.");
            return false;
        }

        if (inventory.Open == true)
        {
            GD.PrintErr($"Inventory with {Id} is already open.");
            return false;
        }
        _inventories[Id].Open = true;
        GD.Print($"Opened inventory {inventory.Name} with id {inventory.Id}.");
        return true;
    }
    
    public bool CloseInventory(int Id)
    {
        if(!_inventories.ContainsKey(Id))
        {
            GD.PrintErr("Inventory not found with id " + Id + ".");
            return false;
        }

        var inventory = _inventories[Id];
        if (inventory.Open == false)
        {
            GD.PrintErr($"Inventory with {Id} is already closed.");
            return false;
        }
        
        _inventories[Id].Open = false;
        _inventories.Remove(Id);
        GD.Print("Closed inventory " + inventory.Name + " with id " + inventory.Id + ".");
        return true;
    }
    
    #endregion
    private Dictionary<int,InventoryModel> _inventories { get; set; } = new Dictionary<int,InventoryModel>();
    


}