using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Steamworks;
using UnityEngine;

namespace HeathenEngineering.SteamApi.PlayerServices
{
	public abstract class InventoryItemPointer : ScriptableObject
	{
		public SteamItemDef_t DefinitionID;

		public List<CraftingRecipe> Recipes;

		[HideInInspector]
		public List<ValveItemDefAttribute> ValveItemDefAttributes;

		public abstract InventoryItemType ItemType { get; }

		public CraftingRecipe this[string name] => Recipes?.FirstOrDefault((CraftingRecipe p) => p.name == name);

		public ItemExchangeRecipe PrepareItemExchange(CraftingRecipe recipe, out Dictionary<InventoryItemDefinition, List<SteamItemDetails_t>> Edits)
		{
			ItemExchangeRecipe itemExchangeRecipe = new ItemExchangeRecipe();
			itemExchangeRecipe.ItemToGenerate = DefinitionID;
			itemExchangeRecipe.ItemsToConsume = new List<ExchangeItemCount>();
			foreach (InventoryItemDefinitionCount item3 in recipe.Items)
			{
				if (item3.Item.Count < item3.Count)
				{
					Debug.LogError("InventoryItemPointer.Craft - Failed to fetch the required items for the recipe, insufficent supply of '" + item3.Item.name + "'.");
					Edits = null;
					return null;
				}
			}
			Edits = new Dictionary<InventoryItemDefinition, List<SteamItemDetails_t>>();
			foreach (InventoryItemDefinitionCount item4 in recipe.Items)
			{
				if (item4.Item.Count >= item4.Count)
				{
					int num = 0;
					List<ExchangeItemCount> list = new List<ExchangeItemCount>();
					List<SteamItemDetails_t> list2 = new List<SteamItemDetails_t>();
					foreach (SteamItemDetails_t instance in item4.Item.Instances)
					{
						if (item4.Count - num >= instance.m_unQuantity)
						{
							num += instance.m_unQuantity;
							list.Add(new ExchangeItemCount
							{
								InstanceId = instance.m_itemId,
								Quantity = instance.m_unQuantity
							});
							SteamItemDetails_t item = instance;
							item.m_unQuantity = 0;
							list2.Add(item);
							continue;
						}
						int num2 = Convert.ToInt32(item4.Count - num);
						num += num2;
						list.Add(new ExchangeItemCount
						{
							InstanceId = instance.m_itemId,
							Quantity = Convert.ToUInt32(num2)
						});
						SteamItemDetails_t item2 = instance;
						item2.m_unQuantity -= Convert.ToUInt16(num2);
						list2.Add(item2);
						break;
					}
					Edits.Add(item4.Item, list2);
					itemExchangeRecipe.ItemsToConsume.AddRange(list);
					continue;
				}
				Debug.LogWarning("Crafting request was unable to complete due to insuffient resources.");
				return null;
			}
			return itemExchangeRecipe;
		}

		public void Craft(CraftingRecipe recipe)
		{
			Dictionary<InventoryItemDefinition, List<SteamItemDetails_t>> edits;
			ItemExchangeRecipe itemExchangeRecipe = PrepareItemExchange(recipe, out edits);
			if (itemExchangeRecipe.ItemsToConsume == null || itemExchangeRecipe.ItemsToConsume.Count < 1)
			{
				Debug.LogWarning("Attempted to craft item [" + base.name + "] with no items to consume selected!\nThis will be refused by Steam so will not be sent!");
			}
			else if (itemExchangeRecipe != null && !SteamworksPlayerInventory.ExchangeItems(itemExchangeRecipe, delegate(bool status, SteamItemDetails_t[] results)
			{
				if (status)
				{
					foreach (KeyValuePair<InventoryItemDefinition, List<SteamItemDetails_t>> item2 in edits)
					{
						foreach (SteamItemDetails_t item in item2.Value)
						{
							item2.Key.Instances.RemoveAll((SteamItemDetails_t p) => p.m_itemId == item.m_itemId);
							item2.Key.Instances.Add(item);
						}
					}
					if (SteamworksInventorySettings.Current != null && SteamworksInventorySettings.Current.LogDebugMessages)
					{
						StringBuilder stringBuilder = new StringBuilder("Inventory Item [" + base.name + "] Crafted,\nItems Consumed:\n");
						foreach (InventoryItemDefinitionCount item3 in recipe.Items)
						{
							stringBuilder.Append("\t" + item3.Count + " [" + item3.Item.name + "]");
						}
					}
				}
				else if (SteamworksInventorySettings.Current != null && SteamworksInventorySettings.Current.LogDebugMessages)
				{
					Debug.LogWarning("Request to craft item [" + base.name + "] failed, confirm the item and recipie configurations are correct in the app settings.");
				}
				if (SteamworksInventorySettings.Current != null)
				{
					SteamworksInventorySettings.Current.ItemsExchanged.Invoke(status, results);
				}
			}) && SteamworksInventorySettings.Current != null)
			{
				SteamworksInventorySettings.Current.ItemsExchanged.Invoke(arg0: false, new SteamItemDetails_t[0]);
				if (SteamworksInventorySettings.Current.LogDebugMessages)
				{
					Debug.LogWarning("Request to craft item [" + base.name + "] was refused by Steam.");
				}
			}
		}

		public void Craft(int recipeIndex)
		{
			CraftingRecipe recipe = Recipes[recipeIndex];
			Craft(recipe);
		}

		public void GrantPromoItem()
		{
			SteamworksPlayerInventory.AddPromoItem(DefinitionID, delegate(bool status, SteamItemDetails_t[] results)
			{
				if (SteamworksInventorySettings.Current != null)
				{
					SteamworksInventorySettings.Current.ItemsGranted.Invoke(status, results);
				}
			});
		}
	}
}