using System.Numerics;
using Content.Shared.VendingMachines;
using Robust.Client.AutoGenerated;
using Robust.Client.GameObjects;
using Robust.Client.Graphics;
using Robust.Client.UserInterface.CustomControls;
using Robust.Client.UserInterface.XAML;
using Robust.Shared.Prototypes;

namespace Content.Client._White.Economy.Ui;

[GenerateTypedNameReferences]
public sealed partial class VendingMenu : DefaultWindow
{
    [Dependency] private readonly IPrototypeManager _prototypeManager = default!;

    public event Action<int>? OnItemSelected;
    public Action<VendingMachineWithdrawMessage>? OnWithdraw;
    public string filter = "";
    public VendingMenu()
    {
        MinSize = SetSize = new Vector2(250, 150);
        RobustXamlLoader.Load(this);
        IoCManager.InjectDependencies(this);
        // SearchBar.OnTextChanged += UpdateFilter;
    }

    /// <summary>
    /// Populates the list of available items on the vending machine interface
    /// and sets icons based on their prototypes
    /// </summary>
    public void Populate(List<VendingMachineInventoryEntry> inventory, double priceMultiplier, int credits)
    {
        CreditsLabel.Text = Loc.GetString("vending-ui-credits-amount", ("credits", credits));
        WithdrawButton.Disabled = credits == 0;
        WithdrawButton.OnPressed += _ =>
        {
            if (credits == 0)
                return;
            OnWithdraw?.Invoke(new VendingMachineWithdrawMessage());
        };

        VendingContents.RemoveAllChildren();
        if (inventory.Count == 0)
        {
            OutOfStockLabel.Visible = true;
            SetSizeAfterUpdate(OutOfStockLabel.Text?.Length ?? 0);
            return;
        }

        OutOfStockLabel.Visible = false;

        var longestEntry = string.Empty;
        var spriteSystem = IoCManager.Resolve<IEntitySystemManager>().GetEntitySystem<SpriteSystem>();

        for (var i = 0; i < inventory.Count; i++)
        {
            var entry = inventory[i];

            var itemName = entry.ID;
            Texture? icon = null;
            if (_prototypeManager.TryIndex<EntityPrototype>(entry.ID, out var prototype))
            {
                itemName = prototype.Name;
                icon = spriteSystem.GetPrototypeIcon(prototype).Default;
            }

            if (itemName.Length > longestEntry.Length)
                longestEntry = itemName;

            var price = (int) (entry.Price * priceMultiplier);
            var vendingItem = new VendingItem($"{itemName} [{entry.Amount}]", price > 0 ? $"{price} \u00a2" : "выдать", icon);

            var j = i;
            vendingItem.VendingItemBuyButton.OnPressed += _ => { OnItemSelected?.Invoke(j); };


            if (filter == "" || (prototype?.Name?.Contains(filter) == true))
                VendingContents.AddChild(vendingItem);
        }

        SetSizeAfterUpdate(longestEntry.Length);
    }

    private void SetSizeAfterUpdate(int longestEntryLength)
    {
        SetSize = new Vector2(Math.Clamp((longestEntryLength + 10) * 12, 250, 700),
            Math.Clamp(VendingContents.ChildCount * 50, 150, 400));
    }
}