using System.Collections.Generic;
using System.Linq;
using System.Numerics;
using Dalamud.Plugin.Services;
using LLib.Shop.Model;
using Lumina.Excel;
using Lumina.Excel.Sheets;

namespace LLib.Shop.Searchers;

internal sealed class SpecialShopSearcher
{
	private const uint SpecialShopHandlerType = 27u;

	private static readonly Dictionary<uint, uint> SpecialCurrencies = new Dictionary<uint, uint>
	{
		{ 1u, 28u },
		{ 2u, 33913u },
		{ 4u, 33914u },
		{ 6u, 41784u },
		{ 7u, 41785u }
	};

	private readonly IDataManager _dataManager;

	private readonly NpcPositionCache _positionCache;

	private readonly uint[] _tomestoneItemIds;

	public SpecialShopSearcher(IDataManager dataManager, NpcPositionCache positionCache)
	{
		_dataManager = dataManager;
		_positionCache = positionCache;
		_tomestoneItemIds = (from t in dataManager.GetExcelSheet<TomestonesItem>()
			where t.Tomestones.RowId != 0
			orderby t.Tomestones.RowId
			select t.Item.RowId).ToArray();
	}

	public List<ShopSearchResult> Search(uint itemId)
	{
		List<ShopSearchResult> list = new List<ShopSearchResult>();
		ExcelSheet<ENpcBase> excelSheet = _dataManager.GetExcelSheet<ENpcBase>();
		ExcelSheet<SpecialShop> excelSheet2 = _dataManager.GetExcelSheet<SpecialShop>();
		uint rowId = default(uint);
		RowRef current2 = default(RowRef);
		SpecialShop shop = default(SpecialShop);
		uint price = default(uint);
		uint currencyItemId = default(uint);
		SpecialShop.ItemStruct itemStruct = default(SpecialShop.ItemStruct);
		int num13 = default(int);
		int num9 = default(int);
		bool flag = default(bool);
		int num12 = default(int);
		SpecialShop.ItemStruct.ItemCostsStruct itemCostsStruct = default(SpecialShop.ItemStruct.ItemCostsStruct);
		foreach (ENpcBase item in excelSheet)
		{
			if (item.RowId == 0)
			{
				continue;
			}
			(ushort, Vector3)? position = _positionCache.GetPosition(item.RowId);
			if (!position.HasValue)
			{
				continue;
			}
			(ushort, Vector3) valueOrDefault = position.GetValueOrDefault();
			int num = 0;
			using Collection<RowRef>.Enumerator enumerator2 = item.ENpcData.GetEnumerator();
			int num2 = 1586357649;
			while (true)
			{
				int num3 = num2;
				int num4 = 1586357637;
				int num5 = num3;
				int num6 = num5 + num4;
				int num7 = num5 & num4;
				switch (num6 - (num7 + num7))
				{
				case 5:
					rowId = current2.RowId;
					num2 = (excelSheet2.TryGetRow(rowId, out shop) ? 1586357643 : 1586357652);
					break;
				case 8:
					list.Add(new ShopSearchResult(rowId, item.RowId, valueOrDefault.Item1, valueOrDefault.Item2, EShopType.SpecialShop, price, currencyItemId, num));
					num2 = 1586357638;
					break;
				case 2:
					itemStruct = shop.Item[num13];
					num9 = 0;
					num2 = 1586357640;
					break;
				case 18:
					flag = true;
					num12 = 0;
					num2 = 1586357651;
					break;
				case 1:
					num2 = ((num13 < shop.Item.Count) ? 1586357639 : 1586357635);
					break;
				case 16:
					itemCostsStruct = itemStruct.ItemCosts[num12];
					num2 = ((itemCostsStruct.ItemCost.RowId == 0) ? 1586357646 : 1586357642);
					break;
				case 17:
				{
					int num19 = num;
					num4 = 1;
					num5 = num19;
					num = (num5 | num4) + (num5 & num4);
					num2 = 1586357649;
					break;
				}
				case 10:
					num2 = (flag ? 1586357635 : 1586357648);
					break;
				case 11:
				{
					int num18 = num12;
					num4 = 1;
					num5 = num18;
					num12 = (num5 | num4) + (num5 & num4);
					num2 = 1586357651;
					break;
				}
				case 3:
				{
					int num15 = num;
					num4 = 1;
					num5 = num15;
					int num16 = num5 ^ num4;
					int num17 = num5 & num4;
					num = num16 + (num17 + num17);
					num2 = 1586357649;
					break;
				}
				case 12:
					num2 = 1586357649;
					break;
				case 6:
					num2 = ((!flag) ? 1586357638 : 1586357645);
					break;
				case 13:
					num2 = ((num9 < itemStruct.ReceiveItems.Count) ? 1586357634 : 1586357647);
					break;
				case 7:
					num2 = ((itemStruct.ReceiveItems[num9].Item.RowId != itemId) ? 1586357633 : 1586357655);
					break;
				case 14:
					flag = false;
					currencyItemId = 0u;
					price = 0u;
					num13 = 0;
					num2 = 1586357636;
					break;
				case 20:
					num2 = (enumerator2.MoveNext() ? 1586357644 : 1586357654);
					break;
				case 9:
					current2 = enumerator2.Current;
					num2 = ((current2.RowId >> 16 != 27) ? 1586357649 : 1586357632);
					break;
				case 21:
				{
					int num14 = num13;
					num4 = 1;
					num5 = num14;
					num13 = (num5 | num4) + (num5 & num4);
					num2 = 1586357636;
					break;
				}
				case 22:
					num2 = ((num12 < itemStruct.ItemCosts.Count) ? 1586357653 : 1586357637);
					break;
				case 15:
					currencyItemId = ConvertCurrencyItemId(itemCostsStruct.ItemCost.RowId, in shop);
					price = itemCostsStruct.CurrencyCost;
					num2 = 1586357647;
					break;
				case 0:
					num2 = 1586357647;
					break;
				case 4:
				{
					int num8 = num9;
					num4 = 1;
					num5 = num8;
					int num10 = num5 ^ num4;
					int num11 = num5 & num4;
					num9 = num10 + (num11 + num11);
					num2 = 1586357640;
					break;
				}
				case 19:
					goto end_IL_009b;
				}
				continue;
				end_IL_009b:
				break;
			}
		}
		return list;
	}

	private uint ConvertCurrencyItemId(uint costItemId, in SpecialShop shop)
	{
		int num = ((costItemId == 0) ? 1435581379 : 1435581385);
		uint num8 = default(uint);
		ushort num7 = default(ushort);
		bool flag = default(bool);
		while (true)
		{
			int num2 = num;
			int num3 = 1435581387;
			int num4 = num2;
			int num5 = num4 + num3;
			int num6 = num4 & num3;
			uint num10;
			switch (num5 - (num6 + num6))
			{
			case 3:
				num8 = SpecialCurrencies.GetValueOrDefault(costItemId, costItemId);
				num = 1435581387;
				break;
			case 7:
				num = ((num7 == 8) ? 1435581389 : 1435581390);
				break;
			case 4:
				num8 = costItemId;
				num = 1435581387;
				break;
			case 15:
				num10 = costItemId;
				goto IL_014f;
			case 12:
				flag = false;
				num = 1435581386;
				break;
			case 14:
				num7 = 16;
				num = 1435581403;
				break;
			case 5:
				num = ((num7 != 16) ? 1435581391 : 1435581384);
				break;
			case 16:
				num = ((num7 == 4) ? 1435581382 : 1435581388);
				break;
			case 11:
				num = 1435581385;
				break;
			case 8:
				return costItemId;
			case 17:
			{
				uint[] tomestoneItemIds = _tomestoneItemIds;
				num3 = 1;
				num4 = (int)costItemId;
				num10 = tomestoneItemIds[~(~num4 + num3)];
				goto IL_014f;
			}
			case 10:
				flag = true;
				num = 1435581386;
				break;
			case 2:
				num = ((costItemId < 8) ? 1435581378 : 1435581379);
				break;
			case 13:
				num = ((costItemId <= _tomestoneItemIds.Length) ? 1435581402 : 1435581380);
				break;
			case 0:
				return num8;
			case 6:
				num8 = 1u;
				num = 1435581387;
				break;
			case 1:
				num = ((!flag) ? 1435581403 : 1435581381);
				break;
			case 9:
				{
					num7 = shop.UseCurrencyType;
					num8 = shop.RowId;
					uint num9 = num8;
					num3 = 1770637;
					num4 = (int)num9;
					num = (((uint)(~(~num4 + num3)) > 1u) ? 1435581383 : 1435581377);
					break;
				}
				IL_014f:
				num8 = num10;
				num = 1435581387;
				break;
			}
		}
	}
}