using System.Collections.Generic;
using Dalamud.Plugin.Services;
using LLib.Shop.Model;
using LLib.Shop.Searchers;

namespace LLib.Shop;

public sealed class VendorResolver
{
	private readonly GilShopSearcher _gilShopSearcher;

	private readonly SpecialShopSearcher _specialShopSearcher;

	private readonly GCShopSearcher _gcShopSearcher;

	public VendorResolver(IDataManager dataManager, NpcPositionCache positionCache)
	{
		_gilShopSearcher = new GilShopSearcher(dataManager, positionCache);
		_specialShopSearcher = new SpecialShopSearcher(dataManager, positionCache);
		_gcShopSearcher = new GCShopSearcher(dataManager, positionCache);
	}

	public IReadOnlyList<ShopSearchResult> FindVendorsForItem(uint itemId)
	{
		List<ShopSearchResult> list = new List<ShopSearchResult>();
		list.AddRange(_gilShopSearcher.Search(itemId));
		list.AddRange(_specialShopSearcher.Search(itemId));
		list.AddRange(_gcShopSearcher.Search(itemId));
		return list;
	}

	public IReadOnlyList<ShopSearchResult> FindVendorsForItem(uint itemId, EShopType shopType)
	{
		return shopType switch
		{
			EShopType.GilShop => _gilShopSearcher.Search(itemId), 
			EShopType.SpecialShop => _specialShopSearcher.Search(itemId), 
			EShopType.GCShop => _gcShopSearcher.Search(itemId), 
			_ => new List<ShopSearchResult>(), 
		};
	}

	public ShopSearchResult? FindGilVendor(uint itemId)
	{
		List<ShopSearchResult> list = _gilShopSearcher.Search(itemId);
		if (list.Count <= 0)
		{
			return null;
		}
		return list[0];
	}
}