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


using Nettention.Proud;


using ServerCore; using ServerBase;
using ServerCommon;


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;



namespace GameServer
{
    public class ItemToolAction : EntityActionBase
    {
        private ToolAction? m_curr_tool_action_nullable = null;

        public ItemToolAction(Player owner)
            : base(owner)
        {
        }

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

            var result = new Result();

            return result;
        }

        public override void onClear()
        {
            return;
        }

        public async Task<Result> tryLoadToolActionFromDoc(ToolActionDoc doc)
        {
            await Task.CompletedTask;

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

            var owner = getOwner() as Player;
            NullReferenceCheckHelper.throwIfNull(owner, () => $"owner is null !!!");
            ArgumentNullReferenceCheckHelper.throwIfNull(doc,  () => $"m_new_tool_action_nullable is null !!! - {owner.toBasicString()}");

            var tool_action = new ToolAction(owner);
            result = await tool_action.onInit();
            if(result.isFail())
            {
                return result;
            }

            var tool_action_attribute = tool_action.getEntityAttribute<ToolActionAttribute>();
            NullReferenceCheckHelper.throwIfNull(tool_action_attribute, () => $"tool_action_attribute is null !!! - {owner.toBasicString()}");

            var is_success = tool_action_attribute.copyEntityAttributeFromDoc(doc);
            if(false == is_success) 
            {
                err_msg = $"Failed to copyEntityAttributeFromDoc() !!!, to:{typeof(ToolActionAttribute).Name}, from:{doc.getTypeName()}";
                result.setFail(ServerErrorCode.DynamoDbDocCopyToEntityAttributeFailed, err_msg);
                Log.getLogger().error(result.toBasicString());

                return result;
            }

            m_curr_tool_action_nullable = tool_action;

            return result;
        }

        public void applyNewOrCurrToolAction(ToolAction toolAction)
        {
            var owner = getOwner() as Player;
            NullReferenceCheckHelper.throwIfNull(owner, () => $"owner is null !!!");

            m_curr_tool_action_nullable = toolAction;
        }

        public void applyCloseToolAction()
        {
            m_curr_tool_action_nullable = null;
        }

        public async Task<Result> tryRegisterItemTool(ITEM_GUID itemGuid, Int32 toEquipSlotIndex)
        {
            var result = new Result();
            var err_msg = string.Empty;

            var owner = getOwner() as Player;
            NullReferenceCheckHelper.throwIfNull(owner, () => $"owner is null !!!");

            var inventory_action = owner.getEntityAction<InventoryActionBase>();
            NullReferenceCheckHelper.throwIfNull(inventory_action, () => $"inventory_action is null !!! - {owner.toBasicString()}");

            var found_item = inventory_action.tryGetItemByItemGuid(itemGuid);
            if(null == found_item)
            {
                err_msg = $"Failed to tryGetItemByItemGuid !!! : itemGuid:{itemGuid} : {owner.toBasicString()}";
                result.setFail(ServerErrorCode.ItemNotFound, err_msg);
                Log.getLogger().error(result.toBasicString());

                return result;
            }

            result = await inventory_action.tryTakableToEquip(found_item, (Int16)toEquipSlotIndex);
            if(result.isFail())
            {
                return result;
            }

            return result;
        }

        public async Task<Result> tryUnregisterItemTool(Int16 toUnequipSlotIndex, ITEM_GUID itemGuid)
        {
            var result = new Result();
            var err_msg = string.Empty;

            var owner = getOwner() as Player;
            NullReferenceCheckHelper.throwIfNull(owner, () => $"owner is null !!!");

            var inventory_action = owner.getEntityAction<InventoryActionBase>();
            NullReferenceCheckHelper.throwIfNull(inventory_action, () => $"inventory_action is null !!! - {owner.toBasicString()}");

            var found_item = inventory_action.tryGetItemByItemGuid(itemGuid);
            if(null == found_item)
            {
                err_msg = $"Failed to tryGetItemByItemGuid !!! : itemGuid:{itemGuid} : {owner.toBasicString()}";
                result.setFail(ServerErrorCode.ItemNotFound, err_msg);
                Log.getLogger().error(result.toBasicString());

                return result;
            }

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

            if (item_attribute.EquipedPos != toUnequipSlotIndex)
            {
                err_msg = $"Not match ItemTool quiped slot pos !!! : currPos:{item_attribute.EquipedPos} == reqUnequipPos:{toUnequipSlotIndex}, {found_item.toBasicString()} : {owner.toBasicString()}";
                result.setFail(ServerErrorCode.EquipSlotNotMatch, err_msg);
                Log.getLogger().error(result.toBasicString());

                return result;
            }

            (result, var updated_item) = await inventory_action.tryTakableOutFromEquip(found_item);
            if(result.isFail())
            {
                return result;
            }

            if(   null != m_curr_tool_action_nullable
               && true == m_curr_tool_action_nullable.isActivateToolAction(itemGuid) )
            {
                result = await m_curr_tool_action_nullable.tryUnactivateToolAction();
                if (result.isFail())
                {
                    return result;
                }

                m_curr_tool_action_nullable = null;
            }

            return result;
        }

        public async Task<(Result, ToolAction?, Item?)> tryActivateItemTool(Int16 itemToolSlotIndex)
        {
            await Task.CompletedTask;

            var owner = getOwner();
            NullReferenceCheckHelper.throwIfNull(owner, () => $"owner is null !!!");

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

            var inventory_action = owner.getEntityAction<InventoryActionBase>();
            NullReferenceCheckHelper.throwIfNull(inventory_action, () => $"inventory_action is null !!! - {owner.toBasicString()}");

            inventory_action.getEquipInvens().TryGetValue(InvenEquipType.Tool, out var found_equip_inven);
            NullReferenceCheckHelper.throwIfNull(found_equip_inven, () => $"found_equip_inven is null !!! - {owner.toBasicString()}");

            var tool_inven = found_equip_inven as ToolEquipInven;
            NullReferenceCheckHelper.throwIfNull(tool_inven, () => $"tool_inven is null !!! - {owner.toBasicString()}");

            var tool_inven_data = tool_inven.getData();
            NullReferenceCheckHelper.throwIfNull(tool_inven_data, () => $"tool_inven_data is null !!! - {owner.toBasicString()}");

            var tool_slot_type = (ToolSlotType)itemToolSlotIndex;
            var found_item_tool = tool_inven_data.onFindEntityBase(tool_slot_type) as Item;
            if (null == found_item_tool)
            {
                err_msg = $"Not found Item Tool !!! : ToolSlotType:{tool_slot_type} - {owner.toBasicString()}";
                result.setFail(ServerErrorCode.ItemToolNotFound, err_msg);
                Log.getLogger().error(result.toBasicString());

                return (result, null, null);
            }

            if(null != m_curr_tool_action_nullable)
            {
                var item_attribute = found_item_tool.getOriginEntityAttribute<ItemAttributeBase>();
                NullReferenceCheckHelper.throwIfNull(item_attribute, () => $"item_attribute is null !!! - {owner.toBasicString()}");

                // 동일한 도구가 활성화 상태인 경우
                if (true == m_curr_tool_action_nullable.isActivateToolAction(item_attribute.ItemGuid))
                {
                    err_msg = $"Already activated ToolAction of Item !!! : ToolSlotType:{tool_slot_type}, ItemGuid:{item_attribute.ItemGuid} - {owner.toBasicString()}";
                    result.setFail(ServerErrorCode.ToolActionAlreadyActivateState, err_msg);
                    Log.getLogger().error(result.toBasicString());

                    return (result, null, null);
                }
                // 동일한 도구가 아닌 경우
                else
                {
                    result = await m_curr_tool_action_nullable.tryUnactivateToolAction();
                    if (result.isFail())
                    {
                        return (result, null, null);
                    }
                }
            }

            var new_tool_action_nullable = new ToolAction(owner);
            result = await new_tool_action_nullable.onInit();
            if (result.isFail())
            {
                return (result, null, null);
            }

            result = await new_tool_action_nullable.tryAactivateToolAction(found_item_tool, itemToolSlotIndex);
            if (result.isFail())
            {
                return (result, null, null);
            }

            return (result, new_tool_action_nullable, found_item_tool);
        }

        public Result send_NTF_ITEM_TOOL_ACTIVITY(Item activatedItemTool)
        {
            var owner = getOwner() as Player;
            NullReferenceCheckHelper.throwIfNull(owner,  () => $"owner is null !!!");
            ArgumentNullReferenceCheckHelper.throwIfNull(activatedItemTool, () => $"activatedItemTool is null !!! - {owner.toBasicString()}");

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

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

            var game_zone_action = owner.getEntityAction<GameZoneAction>();
            NullReferenceCheckHelper.throwIfNull(game_zone_action, () => $"game_zone_action is null !!! - {owner.toBasicString()}");

            var curr_join_map = game_zone_action.getLinkedToMap();
            if(null == curr_join_map)
            {
                err_msg = $"Not in GameZone !!! : {owner.toBasicString()}";
                result.setFail(ServerErrorCode.GameZoneNotJoin, err_msg);
                Log.getLogger().error(result.toBasicString());

                return result;
            }

            ClientToGame clientToGameNoti = new();
            clientToGameNoti.Message = new();
            clientToGameNoti.Message.ActivateToolItemNoti = new();
            clientToGameNoti.Message.ActivateToolItemNoti.ActorGuid = owner.getUserGuid();
            clientToGameNoti.Message.ActivateToolItemNoti.ToolItemId = item_meta.ItemId;

            curr_join_map.Broadcast(owner, clientToGameNoti);

            return result;
        }

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

            var owner = getOwner() as Player;
            NullReferenceCheckHelper.throwIfNull(owner, () => $"owner is null !!!");

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

            if(null == m_curr_tool_action_nullable)
            {
                err_msg = $"Already unactivated ToolAction !!!, m_curr_tool_action_nullable is null - {owner.toBasicString()}";
                result.setFail(ServerErrorCode.ToolActionAlreadyUnactivateState, err_msg);
                Log.getLogger().error(result.toBasicString());

                return result;
            }

            var tool_action_attribute = m_curr_tool_action_nullable.getEntityAttribute<ToolActionAttribute>();
            NullReferenceCheckHelper.throwIfNull(tool_action_attribute, () => $"tool_action_attribute is null !!! - {owner.toBasicString()}");

            var item_tool_meta_id = tool_action_attribute.ItemMetaId;
            if(0 == item_tool_meta_id)
            {
                err_msg = $"Item Tool not activate state !!! : itemToolMetaId:{item_tool_meta_id} - {owner.toBasicString()}";
                result.setFail(ServerErrorCode.ItemToolNotActivateState, err_msg);
                Log.getLogger().error(result.toBasicString());

                return result;
            }

            if (false == MetaData.Instance._ToolMetaTable.TryGetValue((Int32)item_tool_meta_id, out var curr_tool_data))
            {
                err_msg = $"Not found Item Tool Meta !!! : itemToolMetaId:{item_tool_meta_id} - {owner.toBasicString()}";
                result.setFail(ServerErrorCode.ItemToolMetaDataNotFound, err_msg);
                Log.getLogger().error(result.toBasicString());

                return result;
            }

            return await m_curr_tool_action_nullable.tryUnactivateToolAction();
        }

        public Result send_NTF_ITEM_TOOL_UNACTIVITY()
        {
            var owner = getOwner() as Player;
            NullReferenceCheckHelper.throwIfNull(owner, () => $"owner is null !!!");

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

            var game_zone_action = owner.getEntityAction<GameZoneAction>();
            NullReferenceCheckHelper.throwIfNull(game_zone_action, () => $"game_zone_action is null !!! - {owner.toBasicString()}");

            var curr_join_map = game_zone_action.getLinkedToMap();
            if (null == curr_join_map)
            {
                err_msg = $"Not in GameZone !!! : {owner.toBasicString()}";
                result.setFail(ServerErrorCode.GameZoneNotJoin, err_msg);
                Log.getLogger().error(result.toBasicString());

                return result;
            }

            ClientToGame clientToGameNoti = new();
            clientToGameNoti.Message = new();
            clientToGameNoti.Message.DeactivateToolItemNoti = new();
            clientToGameNoti.Message.DeactivateToolItemNoti.ActorGuid = owner.getUserGuid();

            curr_join_map.Broadcast(owner, clientToGameNoti);

            return result;
        }

        public async Task<Result> tryUseItemTool(Int32 equipedToolItemStep, Int32 equipedToolItemRandomState, Int64 actionStartTime)
        {
            await Task.CompletedTask;

            var owner = getOwner() as Player;
            NullReferenceCheckHelper.throwIfNull(owner, () => $"owner is null !!!");

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

            if (null == m_curr_tool_action_nullable)
            {
                err_msg = $"Already unactivated ToolAction !!!, m_curr_tool_action_nullable is null - {owner.toBasicString()}";
                result.setFail(ServerErrorCode.ToolActionAlreadyUnactivateState, err_msg);
                Log.getLogger().error(result.toBasicString());

                return result;
            }

            var tool_action_attribute = m_curr_tool_action_nullable.getEntityAttribute<ToolActionAttribute>();
            NullReferenceCheckHelper.throwIfNull(tool_action_attribute, () => $"tool_action_attribute is null !!! - {owner.toBasicString()}");

            var item_tool_meta_id = tool_action_attribute.ItemMetaId;
            if(0 == item_tool_meta_id)
            {
                err_msg = $"Item Tool not activate state !!! : itemToolMetaId:{item_tool_meta_id} - {owner.toBasicString()}";
                result.setFail(ServerErrorCode.ItemToolNotActivateState, err_msg);
                Log.getLogger().error(result.toBasicString());

                return result;
            }

            if (false == MetaData.Instance._ToolMetaTable.TryGetValue((Int32)item_tool_meta_id, out var curr_tool_data))
            {
                err_msg = $"Not found Item Tool Meta !!! : itemToolMetaId:{item_tool_meta_id} - {owner.toBasicString()}";
                result.setFail(ServerErrorCode.ItemToolMetaDataNotFound, err_msg);
                Log.getLogger().error(result.toBasicString());

                return result;
            }

            var action_buff_meta_id = curr_tool_data.ActionBuffID;
            if (action_buff_meta_id != 0)
            {
                var buff_action = owner.getEntityAction<BuffAction>();
                NullReferenceCheckHelper.throwIfNull(buff_action,  () => $"buff_action is null !!! - {owner.toBasicString()}");

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

                BuffNotifyHelper.send_S2C_NTF_DELETE_BUFF(owner, del_buff_attribute);
                BuffNotifyHelper.send_S2C_NTF_START_BUFF(owner, add_buff_attribute);
            }

            tool_action_attribute.Step = equipedToolItemStep;
            tool_action_attribute.RandomState = equipedToolItemRandomState;
            tool_action_attribute.ActionStartDateTime = actionStartTime;

            tool_action_attribute.modifiedEntityAttribute();

            return result;
        }

        public Result send_S2C_NTF_ITEM_TOOL_USE()
        {
            var owner = getOwner() as Player;
            NullReferenceCheckHelper.throwIfNull(owner, () => $"owner is null !!!");

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

            var game_zone_action = owner.getEntityAction<GameZoneAction>();
            NullReferenceCheckHelper.throwIfNull(game_zone_action, () => $"game_zone_action is null !!! - {owner.toBasicString()}");

            var curr_join_map = game_zone_action.getLinkedToMap();
            if (null == curr_join_map)
            {
                err_msg = $"Not in GameZone !!! : {owner.toBasicString()}";
                result.setFail(ServerErrorCode.GameZoneNotJoin, err_msg);
                Log.getLogger().error(result.toBasicString());

                return result;
            }

            if (null == m_curr_tool_action_nullable)
            {
                err_msg = $"Already unactivated ToolAction !!!, m_curr_tool_action_nullable is null - {owner.toBasicString()}";
                result.setFail(ServerErrorCode.ToolActionAlreadyUnactivateState, err_msg);
                Log.getLogger().error(result.toBasicString());

                return result;
            }

            var tool_action_attribute = m_curr_tool_action_nullable.getOriginEntityAttribute<ToolActionAttribute>();
            NullReferenceCheckHelper.throwIfNull(tool_action_attribute, () => $"tool_action_attribute is null !!! - {owner.toBasicString()}");

            ClientToGame clientToGameNoti = new();
            clientToGameNoti.Message = new();
            clientToGameNoti.Message.UseToolItemNoti = new();

            clientToGameNoti.Message.UseToolItemNoti.ActorGuid = owner.getUserGuid();
            clientToGameNoti.Message.UseToolItemNoti.ToolItemId = (Int32)tool_action_attribute.ItemMetaId;
            clientToGameNoti.Message.UseToolItemNoti.ToolItemStep = tool_action_attribute.Step;
            clientToGameNoti.Message.UseToolItemNoti.ToolItemRandomState = tool_action_attribute.RandomState;
            clientToGameNoti.Message.UseToolItemNoti.ActionStartTime = tool_action_attribute.ActionStartDateTime;

            curr_join_map.Broadcast(owner, clientToGameNoti);

            return result;
        }

        public EquipInfo toToolAction4Client()
        {
            var owner = getOwner() as Player;
            NullReferenceCheckHelper.throwIfNull(owner, () => $"owner is null !!!");

            var equip_info = new EquipInfo();

            if(null != m_curr_tool_action_nullable)
            {
                var tool_action_attribute = m_curr_tool_action_nullable.getEntityAttribute<ToolActionAttribute>();
                NullReferenceCheckHelper.throwIfNull(tool_action_attribute, () => $"tool_action_attribute is null !!! - {owner.toBasicString()}");

                equip_info.ToolItemGuid = tool_action_attribute.ItemGuid;
                equip_info.ToolItemId = (int)tool_action_attribute.ItemMetaId;
                equip_info.ToolItemStep = tool_action_attribute.Step;
                equip_info.ToolItemRandomState = tool_action_attribute.RandomState;
                equip_info.ActionStartTime = tool_action_attribute.ActionStartDateTime;
            }

            return equip_info;
        }

        public int getCurrentToolItemMetaId()
        {
            if (m_curr_tool_action_nullable == null)
                return 0;

            var tool_action_attribute = m_curr_tool_action_nullable.getEntityAttribute<ToolActionAttribute>();
            NullReferenceCheckHelper.throwIfNull(tool_action_attribute, () => $"tool_action_attribute is null !!! - {getOwner().toBasicString()}");

            return (int)tool_action_attribute.ItemMetaId;
        }
    }
}