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


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 ItemTattooAction : EntityActionBase
    {
        public ItemTattooAction(EntityBase 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> tryRegisterItemTattoo(ITEM_GUID itemGuid, Int32 toEquipSlotIndex)
        {
            var result = new Result();
            var err_msg = string.Empty;

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

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

            (result, _) = await tryUnequipTattooByTattooSlotType((TattooSlotType)toEquipSlotIndex, false);
            if(result.isFail())
            {
                return result;
            }

            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, Item?)> tryUnequipTattooByTattooSlotType( TattooSlotType tattooSlotType
                                                                           , bool isFailOnItemNotFound = true )
        {
            var result = new Result();
            var err_msg = string.Empty;

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

            if (false == InvenEquipType.Tattoo.isEquipableTattooSlotType(tattooSlotType, owner.getEntityType()))
            {
                err_msg = $"Not found TattooSlotType !!! : slotType:{tattooSlotType} - {owner.toBasicString()}";
                result.setFail(ServerErrorCode.TattooEquipRuleTattooSlotTypeNotFound, err_msg);
                Log.getLogger().error(result.toBasicString());

                return (result, null);
            }

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

            (var get_item_result, var found_item) = await inventory_action.tryGetEquipItemByInvenEquipType<TattooSlotType>( InvenEquipType.Tattoo, tattooSlotType
                                                                                                                          , isFailOnItemNotFound );
            if (null == found_item)
            {
                if (get_item_result.isFail())
                {
                    return (get_item_result, null);
                }

                return (result, null);
            }

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

            return (result, updated_item);
        }

        public async Task<Result> tryUnregisterItemTattoo(Int16 toUnequipSlotIndex, ITEM_GUID itemGuid)
        {
            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()}");

            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 ItemTattoo 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;
            }

            return result;
        }

        public async Task<(Result, bool, List<Item>?)> tryLevelUpItemTattoo(ITEM_GUID itemGuid)
        {
            await Task.CompletedTask;

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

            var owner = getOwner();
            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.ItemTattooNotFound, err_msg);
                Log.getLogger().error(result.toBasicString());

                return (result, false, null);
            }

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

            (result, var is_level_up, var updated_items) = await item_action.tryLevelUpByTattoo();
            if (result.isFail())
            {
                return (result, false, null);
            }

            return (result, is_level_up, updated_items);
        }

        public async Task<(Result, List<Item>?)> tryChangeAttriubte(ITEM_GUID itemGuid, Int16 targetAttributeId)
        {
            await Task.CompletedTask;

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

            var owner = getOwner();
            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.ItemTattooNotFound, err_msg);
                Log.getLogger().error(result.toBasicString());

                return (result, null);
            }

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

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

            if(targetAttributeId < 0 || item_attribute.Attributes.Count <= targetAttributeId)
            {
                err_msg = $"Invalid ItemAttributeIdType : 0 <= targetAttributeId:{targetAttributeId} < {item_attribute.Attributes.Count} , {found_item.toBasicString()} : {owner.toBasicString()}";
                result.setFail(ServerErrorCode.ItemAttributeIdTypeInvalid, err_msg);
                Log.getLogger().error(result.toBasicString());

                return (result, null);
            }

            (result, var updated_items) = await item_action.tryChangeAttributeByTattoo(targetAttributeId);
            if (result.isFail())
            {
                return (result, null);
            }

            return (result, updated_items);
        }

        public async Task<Result> trySaveVisibleTattooSlot(Int16 slotIndex, bool isVisible)
        {
            await Task.CompletedTask;

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

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

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

            if(false == InvenEquipType.Tattoo.isEquipableTattooSlotType((TattooSlotType)slotIndex, owner.getEntityType()))
            {
                err_msg = $"Not found TattooSlotType !!! : slotType:{slotIndex} - {owner.toBasicString()}";
                result.setFail(ServerErrorCode.TattooEquipRuleTattooSlotTypeNotFound, err_msg);
                Log.getLogger().error(result.toBasicString());

                return result;
            }

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

            var tattoo_slot = (TattooSlotType)slotIndex;
            result = await custom_defined_ui_action.setTattooVisible(tattoo_slot, isVisible);
            if(result.isFail())
            {
                return result;
            }

            return result;
        }

        public void fillupTattooSlotInfo(TattooSlotType slotType, Item tattooItem, ref TattooSlotInfo slotInfo)
        {
            var owner = getOwner();
            NullReferenceCheckHelper.throwIfNull(owner, () => $"owner is null !!!");

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

            slotInfo.ItemInfo.ItemId = (Int32)(item_attribute.ItemMetaId);
            slotInfo.ItemInfo.Level = item_attribute.Level;
            slotInfo.ItemInfo.Attributeids.AddRange(item_attribute.Attributes.ConvertAll(x => x.castTo<Int32>()));
        }

        public Result send_S2C_NTF_ITEM_TATTOOS()
        {
            var owner = getOwner();
            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 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.ChangeTattooNoti = new();

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

            clientToGameNoti.Message.ChangeTattooNoti.AccountGuid = owner.onGetGuidOfOwnerEntityType();
            clientToGameNoti.Message.ChangeTattooNoti.TattooInfoList.AddRange(inventory_action.toTattooInven4Client());

            curr_join_map.Broadcast(parent, clientToGameNoti);

            return result;
        }
    }
}