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

namespace IStation.Service
{
    /// <summary>
    /// 用户关注
    /// </summary>
    public partial class UserAttention
    {
        #region Cache

        private List<Model.UserAttention> GetCache()
        {
            return UserAttentionCacheHelper.GetSet(() =>
            {
                var dal = new DAL.UserAttention();
                var entity_list = dal.GetAll();
                var model_list = Entity2Models(entity_list);
                if (model_list == null)
                {
                    model_list = new List<Model.UserAttention>();
                }
                return model_list;
            }, ConfigHelper.KeepCacheTime, ConfigHelper.RandomCacheTime);
        }

        private void UpdateCache(long ID)
        {
            var dal = new DAL.UserAttention();
            var entity = dal.GetByID(ID);
            var model = Entity2Model(entity);
            var all = GetCache();
            var rhs = all.Find(x => x.ID == ID);
            if (rhs == null)
            {
                all.Add(model);
            }
            else
            {
                rhs.Reset(model);
            }
        }

        private void UpdateCache(List<long> Ids)
        {
            if (Ids == null || Ids.Count() < 1)
                return;
            var dal = new DAL.UserAttention();
            var entity_list = dal.GetByIds(Ids);
            var model_list = Entity2Models(entity_list);
            var all = GetCache();
            all.RemoveAll(x => Ids.Contains(x.ID));
            if (model_list != null && model_list.Count > 0)
            {
                all.AddRange(model_list);
            }
        }

        private void UpdateCacheByUserID(long UserID)
        {
            var dal = new DAL.UserAttention();
            var entity_list = dal.GetByUserID(UserID);
            var model_list = Entity2Models(entity_list);
            var all=GetCache();
            all.RemoveAll(x => x.UserID == UserID);
            if (model_list != null && model_list.Count > 0)
            {
                all.AddRange(model_list);
            }
        }

        private void RemoveCache(long ID)
        {
            var all = GetCache();
            all.RemoveAll(x => x.ID == ID);
        }

        private void RemoveCache(List<long> Ids)
        {
            if (Ids == null || Ids.Count() < 1)
                return;
            var all = GetCache();
            all.RemoveAll(x => Ids.Contains(x.ID));
        }

        internal void RemoveCacheByUserID(long UserID)
        {
            var all = GetCache();
            all.RemoveAll(x => x.UserID == UserID);
        }

        private void RemoveCacheByObject(long CorpID, string ObjectType, long ObjectID)
        {
            var all = GetCache();
            all.RemoveAll(x => x.CorpID == CorpID && x.ObjectType == ObjectType && x.ObjectID == ObjectID);
        }

        #endregion

        #region Query

        /// <summary>
        /// 获取所有
        /// </summary>
        public List<Model.UserAttention> GetAll()
        {
            var all = GetCache();
            return all.ToList();
        }

        /// <summary>
        /// 通过 ID 获取
        /// </summary>
        public Model.UserAttention GetByID(long ID)
        {
            var all = GetAll();
            return all.Find(x => x.ID == ID);
        }

        /// <summary>
        /// 通过 Ids 获取
        /// </summary>
        public List<Model.UserAttention> GetByIds(List<long> Ids)
        {
            if (Ids == null || Ids.Count() < 1)
                return default;
            var all = GetAll();
            return all.Where(x => Ids.Contains(x.ID)).ToList();
        }

        /// <summary>
        /// 通过 UserID 获取
        /// </summary>
        public List<Model.UserAttention> GetByUserID(long UserID)
        {
            var all = GetAll();
            return all.Where(x => x.UserID == UserID).ToList();
        }

        /// <summary>
        /// 通过 UserID 获取某一类型的关注项
        /// </summary>
        public List<Model.UserAttention> GetByUserIDAndObjectType(long UserID, string ObjectType)
        {
            var all = GetAll();
            return all.Where(x => x.UserID == UserID && x.ObjectType == ObjectType).ToList();
        }

        /// <summary>
        /// 通过 UserID 获取某一类型的特定客户的关注项
        /// </summary>
        public List<Model.UserAttention> GetByUserIDAndObjectTypeUnderCorpID(long UserID, long CorpID, string ObjectType)
        {
            var all = GetAll();
            return all.Where(x => x.UserID == UserID && x.CorpID == CorpID && x.ObjectType == ObjectType).ToList();
        }

        /// <summary>
        /// 通过 UserID 和 Object 获取
        /// </summary>
        public Model.UserAttention GetByUserIDAndObject(long UserID, long CorpID, string ObjectType, long ObjectID)
        {
            var all = GetAll();
            return all.Find(x => x.UserID == UserID && x.CorpID == CorpID && x.ObjectType == ObjectType && x.ObjectID == ObjectID);
        }

        /// <summary>
        /// 根据 UserID 判断是否存在
        /// </summary>
        public bool IsExistByUserID(long UserID)
        {
            var all = GetAll();
            return all.Exists(x => x.UserID == UserID);
        }

        /// <summary>
        /// 根据 UserID 判断Corp下是否存在
        /// </summary>
        public bool IsExistByUserIDUnderCorpID(long UserID, long CorpID)
        {
            var all = GetAll();
            return all.Exists(x => x.UserID == UserID && x.CorpID == CorpID);
        }

        /// <summary>
        /// 根据 Object 判断是否存在
        /// </summary>
        public bool IsExistByObject(long CorpID, string ObjectType, long ObjectID)
        {
            var all = GetAll();
            return all.Exists(x => x.CorpID == CorpID && x.ObjectType == ObjectType && x.ObjectID == ObjectID);
        }

        #endregion

        #region Insert

        /// <summary>
        /// 插入一条数据
        /// </summary>
        public long Insert(Model.UserAttention model)
        {
            if (model == null)
                return default;
            var dal = new DAL.UserAttention();
            var entity = Model2Entity(model);
            entity.AttentionTime = DateTime.Now;
            var id = dal.Insert(entity);
            if (id > 0)
            {
                UpdateCache(id);
            }
            return id;
        }

        /// <summary>
        /// 插入多条
        /// </summary>
        public bool Inserts(List<Model.UserAttention> list)
        {
            if (list == null || list.Count() < 1)
                return default;
            var dal = new DAL.UserAttention();
            var entity_list = Model2Entities(list);
            entity_list.ForEach(x=>x.AttentionTime=DateTime.Now);
            var ids = dal.InsertsR(entity_list);
            if (ids != null && ids.Count > 0)
            {
                UpdateCache(ids);
                return true;
            }
            return false;
        }

        #endregion

        #region Update

        /// <summary>
        /// 更新一条
        /// </summary>
        public bool Update(Model.UserAttention model)
        {
            if (model == null)
                return default;
            if (model.ID < 1)
                return default;
            var dal = new DAL.UserAttention();
            var entity_rhs = Model2Entity(model);
            var bol = dal.Update(entity_rhs);
            if (bol)
            {
                UpdateCache(model.ID);
            }
            return bol;
        }

        /// <summary>
        /// 更新多条
        /// </summary>
        public bool Updates(List<Model.UserAttention> list)
        {
            if (list == null || list.Count() < 1)
                return default;
            if (list.ToList().Exists(x => x.ID < 1))
                return default;
            var dal = new DAL.UserAttention();
            var entity_list = Model2Entities(list.ToList());
            var bol = dal.Updates(entity_list);
            if (bol)
            {
                UpdateCache(list.Select(x => x.ID).ToList());
            }
            return bol;
        }

        #endregion

        #region Set

        /// <summary>
        /// 设置
        /// </summary>
        public bool Set(long UserID, List<Model.AttentionObjectSelected> list)
        {
            if (UserID < 1)
                return default;
            if (list == null || list.Count < 1)
                return default;
            var dal=new DAL.UserAttention();
            var bol = dal.Set(UserID, list.ToEntityList());
            if (bol)
            {
                UpdateCacheByUserID(UserID);
            }
            return bol;
        }

        #endregion

        #region Delete

        /// <summary>
        /// 通过 ID 删除
        /// </summary>
        public bool DeleteByID(long ID, out string Msg)
        {
            Msg = string.Empty;
            var dal = new DAL.UserAttention();
            var bol = dal.DeleteByID(ID);
            if (bol)
            {
                RemoveCache(ID);
            }
            return bol;
        }

        /// <summary>
        /// 通过 UserID 和 Object 删除
        /// </summary>
        public bool DeleteByUserIDAndObject(long UserID, long CorpID, string ObjectType, long ObjectID, out string Msg)
        {
            Msg = string.Empty;
            var model = GetByUserIDAndObject(UserID, CorpID, ObjectType, ObjectID);
            if (model == null)
            {
                Msg = "无用户关注信息";
                return false;
            }
            return DeleteByID(model.ID, out Msg);
        }


        #endregion






    }
}