using Dalamud.Plugin.Services;
using FFXIVClientStructs.FFXIV.Component.GUI;
using LLib.GameUI;

namespace LLib.Shop;

public static class VendorPurchaseActions
{
	private const string ShopAddon = "Shop";

	private const string SelectStringAddon = "SelectString";

	private const string SelectIconStringAddon = "SelectIconString";

	private const string SelectYesnoAddon = "SelectYesno";

	public unsafe static bool IsDialogReady(IGameGui gameGui)
	{
		if (gameGui.TryGetAddonByName<AtkUnitBase>("SelectIconString", out var addonPtr) && LAddon.IsAddonReady(addonPtr))
		{
			return true;
		}
		if (gameGui.TryGetAddonByName<AtkUnitBase>("SelectString", out var addonPtr2) && LAddon.IsAddonReady(addonPtr2))
		{
			return true;
		}
		return false;
	}

	public unsafe static bool TrySelectDialogOption(IGameGui gameGui, int index)
	{
		if (gameGui.TryGetAddonByName<AtkUnitBase>("SelectIconString", out var addonPtr) && LAddon.IsAddonReady(addonPtr))
		{
			AddonCallback.Fire(addonPtr, index);
			return true;
		}
		if (gameGui.TryGetAddonByName<AtkUnitBase>("SelectString", out var addonPtr2) && LAddon.IsAddonReady(addonPtr2))
		{
			AddonCallback.Fire(addonPtr2, index);
			return true;
		}
		return false;
	}

	public unsafe static bool IsShopReady(IGameGui gameGui)
	{
		if (!gameGui.TryGetAddonByName<AtkUnitBase>("Shop", out var addonPtr))
		{
			return false;
		}
		return LAddon.IsAddonReady(addonPtr);
	}

	public unsafe static int FindItemDisplayIndex(IGameGui gameGui, uint itemId)
	{
		if (!gameGui.TryGetAddonByName<AtkUnitBase>("Shop", out var addonPtr))
		{
			return -1;
		}
		if (!LAddon.IsAddonReady(addonPtr))
		{
			return -1;
		}
		if (addonPtr->AtkValues == null || addonPtr->AtkValuesCount <= 2)
		{
			return -1;
		}
		uint uInt = addonPtr->AtkValues[2].UInt;
		for (int i = 0; i < uInt; i++)
		{
			int num = 441 + i;
			if (num >= addonPtr->AtkValuesCount)
			{
				return -1;
			}
			if (addonPtr->AtkValues[num].UInt == itemId)
			{
				return i;
			}
		}
		return -1;
	}

	public unsafe static bool TryBuyItem(IGameGui gameGui, int itemIndex, int quantity)
	{
		if (!gameGui.TryGetAddonByName<AtkUnitBase>("Shop", out var addonPtr))
		{
			return false;
		}
		if (!LAddon.IsAddonReady(addonPtr))
		{
			return false;
		}
		AtkValue* values = stackalloc AtkValue[4]
		{
			new AtkValue
			{
				Type = AtkValueType.Int,
				Int = 0
			},
			new AtkValue
			{
				Type = AtkValueType.Int,
				Int = itemIndex
			},
			new AtkValue
			{
				Type = AtkValueType.Int,
				Int = quantity
			},
			new AtkValue
			{
				Type = AtkValueType.Undefined,
				Int = 0
			}
		};
		addonPtr->FireCallback(4u, values);
		return true;
	}

	public unsafe static bool TryConfirmPurchase(IGameGui gameGui)
	{
		if (!gameGui.TryGetAddonByName<AtkUnitBase>("SelectYesno", out var addonPtr))
		{
			return false;
		}
		if (!LAddon.IsAddonReady(addonPtr))
		{
			return false;
		}
		AddonCallback.ClickYes(addonPtr);
		return true;
	}

	public unsafe static bool TryCloseShop(IGameGui gameGui)
	{
		if (!gameGui.TryGetAddonByName<AtkUnitBase>("Shop", out var addonPtr))
		{
			return false;
		}
		addonPtr->Close(fireCallback: true);
		return true;
	}
}