using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Runtime.InteropServices;


using ServerCore; using ServerBase;
using ServerCommon;
using ServerCommon.BusinessLogDomain;


using SESSION_ID = System.Int32;
using WORLD_META_ID = System.UInt32;
using META_ID = System.UInt32;
using ENTITY_GUID = System.String;
using ACCOUNT_ID = System.String;
using OWNER_GUID = System.String;
using USER_GUID = System.String;
using CHARACTER_GUID = System.String;
using ITEM_GUID = System.String;


using static ClientToLoginMessage.Types;
using MetaAssets;
using Amazon.S3.Model;


namespace GameServer
{
    public class ItemUseAction : EntityActionBase
    {
        public delegate Task<Result> FnItemUseFunction([Optional] object[] toPassFunctionParams);
        private Dictionary<(MetaAssets.EItemLargeType, MetaAssets.EItemSmallType), FnItemUseFunction> m_trigger_funtions = new();


        public ItemUseAction(Item owner) 
            : base(owner)
        {
        }

        public override async Task<Result> onInit()
        {
            await Task.CompletedTask;

            var result = new Result();

            {
                var large_type = MetaAssets.EItemLargeType.EXPENDABLE;
                m_trigger_funtions.Add((large_type, MetaAssets.EItemSmallType.REGISTER_ITEM_SOCIAL_ACTION), onRegisterItemSocialAction);
                m_trigger_funtions.Add((large_type, MetaAssets.EItemSmallType.REGISTER_ITEM_INTERIOR),      onRegisterItemInterior);
                m_trigger_funtions.Add((large_type, MetaAssets.EItemSmallType.BUFF_DRINK),                  onBuffDrink);
                m_trigger_funtions.Add((large_type, MetaAssets.EItemSmallType.RECIPE),                      onRegisterRecipe);
                m_trigger_funtions.Add((large_type, MetaAssets.EItemSmallType.QUEST_ASSIGN),                onQuestAssign);
                m_trigger_funtions.Add((large_type, MetaAssets.EItemSmallType.QUEST_COOLTIME_RESET),        onQuestMailSendInsteadOfCoolltimeReset);
            }
            {
                var large_type = MetaAssets.EItemLargeType.SET_BOX;
                m_trigger_funtions.Add((large_type, MetaAssets.EItemSmallType.SETBOX),                      onOpenSetItem);
            }

            return result;
        }

        public override void onClear()
        {
            return;
        }

        public async Task<Result> onUseItem()
        {
            var owner = getOwner() as Item;
            NullReferenceCheckHelper.throwIfNull(owner, () => $"owner is null !!!");
            var parent = owner.getRootParent() as Player;
            NullReferenceCheckHelper.throwIfNull(parent, () => $"parent is null !!! - {owner.toBasicString()}");

            var item_attribute = owner.getEntityAttribute<ItemAttributeBase>();
            NullReferenceCheckHelper.throwIfNull(item_attribute, () => $"item_attribute is null !!! - {parent.toBasicString()}");

            var result = new Result();
            var err_msg = string.Empty;

            if (false == MetaData.Instance._ItemTable.TryGetValue((Int32)item_attribute.ItemMetaId, out var found_item_meta))
            {
                err_msg = $"Not found Item Meta !!! : {owner.toBasicString()} - {parent.toBasicString()}";
                result.setFail(ServerErrorCode.ItemMetaDataNotFound, err_msg);
                Log.getLogger().error(result.toBasicString());

                return result;
            }

            result = await onTriggerFunction();
            if (result.isFail())
            {
                return result;
            }

            return result;
        }

        private async Task<Result> onTriggerFunction()
        {
            var owner = getOwner() as Item;
            NullReferenceCheckHelper.throwIfNull(owner, () => $"owner is null !!!");
            var parent = owner.getRootParent() as Player;
            NullReferenceCheckHelper.throwIfNull(parent, () => $"parent is null !!! - {owner.toBasicString()}");

            var result = new Result();
            var err_msg = string.Empty;

            var item_meta = owner.getItemMeta();
            NullReferenceCheckHelper.throwIfNull(item_meta, () => $"item_meta is null !!! - {parent.toBasicString()}");

            if (false == m_trigger_funtions.TryGetValue((item_meta.TypeLarge, item_meta.TypeSmall), out var found_fucntion))
            {
                err_msg = $"Not found Item Use Function !!! : largeType:{item_meta.TypeLarge}, smallType:{item_meta.TypeSmall}, {owner.toBasicString()} - {parent.toBasicString()}";
                result.setFail(ServerErrorCode.ItemUseFunctionNotFound, err_msg);
                Log.getLogger().error(result.toBasicString());

                return result;
            }

            result = await found_fucntion.Invoke();
            if (result.isFail())
            {
                return result;
            }

            return result;
        }

        protected async Task<Result> onRegisterItemSocialAction([Optional] object[] toPassFunctionParams)
        {
            var owner = getOwner() as Item;
            NullReferenceCheckHelper.throwIfNull(owner, () => $"owner is null !!!");
            var parent = owner.getRootParent() as Player;
            NullReferenceCheckHelper.throwIfNull(parent, () => $"parent is null !!! - {owner.toBasicString()}");

            var item_meta = owner.getItemMeta();
            NullReferenceCheckHelper.throwIfNull(item_meta, () => $"item_meta is null !!! - {parent.toBasicString()}");

            var item_effect_meta_id  = item_meta.Register_id;

            var social_action = parent.getEntityAction<SocialActionLoadAction>();
            NullReferenceCheckHelper.throwIfNull(social_action, () => $"social_action is null !!! - {parent.toBasicString()}");

            var result = await social_action.tryAddSocialActionFromMetaId(item_effect_meta_id);
            if(result.isFail())
            {
                return result;
            }

            parent.addNotifyMessage(SocialActionNotifyHelper.makeNtfSocialActionAddPacket(item_effect_meta_id), false);

            return result;
        }

        protected async Task<Result> onRegisterItemInterior([Optional] object[] toPassFunctionParams)
        {
            await Task.CompletedTask;

            var result = new Result();
            var err_msg = string.Empty;

            err_msg = $"Not Implemented !!!";
            result.setFail(ServerErrorCode.NotImplemented, err_msg);
            Log.getLogger().error(result.toBasicString());

            return result;
        }

        protected async Task<Result> onBuffDrink([Optional] object[] toPassFunctionParams)
        {
            await Task.CompletedTask;

            var owner = getOwner() as Item;
            NullReferenceCheckHelper.throwIfNull(owner, () => $"owner is null !!!");
            var parent = owner.getRootParent() as Player;
            NullReferenceCheckHelper.throwIfNull(parent, () => $"parent is null !!! - {owner.toBasicString()}");

            var item_meta = owner.getItemMeta();
            NullReferenceCheckHelper.throwIfNull(item_meta, () => $"item_meta is null !!! - {parent.toBasicString()}");

            var item_effect_meta_id = item_meta.buff_id;

            var buff_action = parent.getEntityAction<BuffAction>();
            NullReferenceCheckHelper.throwIfNull(buff_action, () => $"buff_action is null !!! - {parent.toBasicString()}");

            var result = new Result();

            (result, var add_buff_attribute, var delete_buff_attribute) = buff_action.AddBuffProcess((META_ID)item_effect_meta_id);
            if (result.isFail())
            {
                return result;
            }

            if(delete_buff_attribute != null)
            {
                parent.addNotifyMessage(BuffNotifyHelper.makeNotiDeleteBuffPacket(delete_buff_attribute, parent.getUserGuid()), true);
            }

            if (add_buff_attribute != null)
            {
                parent.addNotifyMessage(BuffNotifyHelper.makeNotiStartBuffPacket(add_buff_attribute, parent.getUserGuid()), true);
            }

            return result;
        }

        protected async Task<Result> onRegisterRecipe([Optional] object[] toPassFunctionParams)
        {
            var owner = getOwner() as Item;
            NullReferenceCheckHelper.throwIfNull(owner, () => $"owner is null !!!");
            var parent = owner.getRootParent() as Player;
            NullReferenceCheckHelper.throwIfNull(parent, () => $"parent is null !!! - {owner.toBasicString()}");

            var item_meta = owner.getItemMeta();
            NullReferenceCheckHelper.throwIfNull(item_meta, () => $"item_meta is null !!! - {parent.toBasicString()}");

            var result = new Result();

            var item_effect_meta_id = item_meta.Register_id;

            var craft_recipe_action = parent.getEntityAction<CraftRecipeAction>();
            NullReferenceCheckHelper.throwIfNull(craft_recipe_action, () => $"craft_recipe_action is null !!! - {parent.toBasicString()}");

            result = await craft_recipe_action.RegisterRecipe((META_ID)item_effect_meta_id);
            if (result.isFail())
            {
                return result;
            }

            var craft_recipe_meta_ids = craft_recipe_action.getRecipeMetaIds();

            parent.addNotifyMessage(CraftNotifyHelper.makeAckCraftRecipePacket(craft_recipe_meta_ids), false);

            await QuestManager.It.QuestCheckWithoutTransaction(parent, new QuestCrafting(EQuestEventTargetType.CRAFTING, EQuestEventNameType.REGISTERED, item_effect_meta_id));

            return result;
        }


        protected async Task<Result> onQuestAssign([Optional] object[] toPassFunctionParams)
        {
            Result result = new();

            var owner = getOwner() as Item;
            NullReferenceCheckHelper.throwIfNull(owner, () => $"owner is null !!!");
            var parent = owner.getRootParent() as Player;
            NullReferenceCheckHelper.throwIfNull(parent, () => $"parent is null !!! - {owner.toBasicString()}");

            var item_meta = owner.getItemMeta();
            NullReferenceCheckHelper.throwIfNull(item_meta, () => $"item_meta is null !!! - {parent.toBasicString()}");

            var quest_action = parent.getEntityAction<QuestAction>();
            result = await quest_action.questAssignableItemConditionCheck(item_meta);
            if (result.isFail()) return result;
            
            //퀘스트 할당
            (result, var accept_quest_var) = await quest_action.questAssignByItem(item_meta);
            if (result.isFail() || null == accept_quest_var) return result;

            var assigned_quest = accept_quest_var.m_new_quest_nullable;
            NullReferenceCheckHelper.throwIfNull(assigned_quest, () => $"Quest is null !!! - item_id:{item_meta.ItemId}");

            var assigned_quest_attribute = assigned_quest.getEntityAttribute<QuestAttribute>();
            NullReferenceCheckHelper.throwIfNull(assigned_quest_attribute, () => "QuestAttribute is null !!!");

            var  assigned_quest_id = assigned_quest_attribute.QuestId;
            quest_action.addNewQuest(assigned_quest_id, assigned_quest);

            parent.addNotifyMessage(await QuestNotifyHelper.makeQuestUpdateNotify(parent, assigned_quest_id, assigned_quest, true), false);

            return result;
        }

        protected async Task<Result> onQuestMailSendInsteadOfCoolltimeReset([Optional] object[] toPassFunctionParams)
        {
            Result result = new();

            var owner = getOwner() as Item;
            NullReferenceCheckHelper.throwIfNull(owner, () => $"owner is null !!!");
            var parent = owner.getRootParent() as Player;
            NullReferenceCheckHelper.throwIfNull(parent, () => $"parent is null !!! - {owner.toBasicString()}");

            var item_meta = owner.getItemMeta();
            NullReferenceCheckHelper.throwIfNull(item_meta, () => $"item_meta is null !!! - {parent.toBasicString()}");

            var quest_action = parent.getEntityAction<QuestAction>();
            (result, var assignable_mail_set) = await quest_action.resetQuestCoolTimeConditionCheck();
            if (result.isFail()) return result;

            var assignable_quest_id = QuestManager.It.getAssignableQuestMailId(assignable_mail_set);

            var player = owner.getRootParent() as Player;
            NullReferenceCheckHelper.throwIfNull(player, () => $"player is null !!! - parent: {parent.toBasicString()}");

            var check_value = QuestManager.It.questCheckUserAssignableQuestMaxCheck(player, assignable_mail_set);//여기 방어 처리 필요.

            var quest_mail_action = player.getEntityAction<QuestMailAction>();
            (result, var quest_mail, var quest_mail_log_invoker) = await quest_mail_action.sendQuestMail(assignable_quest_id);
            if (result.isFail())
            {
                return result;
            }
            
            await quest_mail_action.addNewQuestMails(new List<ServerCommon.QuestMail>() { quest_mail });
            await quest_mail_action.send_NTF_RECEIVED_QUEST_MAIL(player, new List<UInt32>() { assignable_quest_id });

            return result;
        }        

        protected async Task<Result> onOpenSetItem([Optional] object[] toPassFunctionParams)
        {
            Result result = new();

            var owner = getOwner() as Item;
            NullReferenceCheckHelper.throwIfNull(owner, () => $"owner is null !!!");
            var parent = owner.getRootParent() as Player;
            NullReferenceCheckHelper.throwIfNull(parent, () => $"parent is null !!! - {owner.toBasicString()}");

            var item_meta = owner.getItemMeta();
            NullReferenceCheckHelper.throwIfNull(item_meta, () => $"item_meta is null !!! - {parent.toBasicString()}");

            if (false == MetaData.Instance._GachaMetaTable.TryGetValue(item_meta.GachaGroupId, out var gachaData))
            {
                var err_msg = $"Not Exist GachaData gachaGroupId = {item_meta.GachaGroupId}";
                result.setFail(ServerErrorCode.NotExistGachaData, err_msg);
                return result;
            }
            NullReferenceCheckHelper.throwIfNull(gachaData, () => $"gachaData is null !!! - {parent.toBasicString()}");

            var inventory_action = parent.getEntityAction<InventoryActionBase>();

            foreach (var gacha in  gachaData.GachaList)
            {
                var reward = gacha.Reward;

                if (reward.Currency != null)
                {
                    var money_action = parent.getEntityAction<MoneyAction>();
                    result = await money_action.changeMoney((CurrencyType)reward.Currency.Id, reward.Currency.Value);
                    if (result.isFail())
                    {
                        return result;
                    }
                }
                
                if (reward.Item != null)
                {
                    (result, var items) = await inventory_action.tryTakalbleToBag((META_ID)reward.Item.Id, (ushort)reward.Item.Count);
                    if (result.isFail())
                    {
                        return result;
                    }
                }
                
                if (reward.SeasonPassExp != null)
                {
                    var season_pass_action = parent.getEntityAction<SeasonPassAction>();
                    result = season_pass_action.IncreaseExp((UInt32)reward.SeasonPassExp.Value);
                    if (result.isFail())
                    {
                        return result;
                    }
                }
            }

            return result;
        }
    }

}