using System.Collections.Generic;
using System.Linq;

namespace IStation.BLL
{
    /// <summary>
    /// 信号
    /// </summary>
    public partial class Signal
    {
        private readonly DAL.Signal _dal = new DAL.Signal();

        #region Cache 

        //根据  查询缓存
        private List<Model.Signal> GetCache()
        {
            return SignalCacheHelper.GetSet(() =>
            {
                var entities = _dal.GetAll();
                var models = Entity2Models(entities);
                if (models == null)
                {
                    models = new List<Model.Signal>();
                }
                return models;
            }, ConfigHelper.CacheKeepTime, ConfigHelper.CacheRandomTime);
        }

        //根据 ID 更新缓存
        private void UpdateProjectCache(long ID)
        {
            var entity_ds = _dal.GetByID(ID);
            var model_ds = Entity2Model(entity_ds);
            var all = GetCache();
            var model = all.Find(x => x.ID == ID);
            if (model == null)
            {
                all.Add(model_ds);
            }
            else
            {
                model.Reset(model_ds);
            }
        }

        //根据 Ids 更新缓存
        private void UpdateProjectCache(IEnumerable<long> Ids)
        {
            if (Ids == null || Ids.Count() < 1)
                return;
            var entities = _dal.GetByIds(Ids);
            var models = Entity2Models(entities);
            var all = GetCache();
            all.RemoveAll(x => Ids.Contains(x.ID));
            if (models != null && models.Count > 0)
            {
                all.AddRange(models);
            }
        }

        //根据 ID 移除缓存
        private void RemoveProjectCache(long ID)
        {
            var all = GetCache();
            all.RemoveAll(x => x.ID == ID);
        }

        #endregion

        #region Get 

        /// <summary>
        /// 查询全部
        /// </summary>
        public List<Model.Signal> GetAll()
        {
            var all = GetCache();
            return all.OrderBy(x => x.SortCode).ToList();
        }

        /// <summary>
        /// 根据 ID查询
        /// </summary>
        public Model.Signal GetByID(long ID)
        {
            var all = GetAll();
            return all.Find(x => x.ID == ID);
        }

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

        /// <summary>
        /// 根据 monitorPointId 查询
        /// </summary>
        public List<Model.Signal> GetByMonitorPointID(long monitorPointId)
        {
            var all = GetCache();
            all = all.Where(x => monitorPointId == x.MonitorPointID).ToList();
            return all?.OrderBy(x => x.SortCode).ToList();
        }

        /// <summary>
        /// 根据 monitorPointId 查询第一条
        /// </summary>
        public Model.Signal GetFirstByMonitorPointID(long monitorPointId)
        {
            var all = GetCache();
            var model = all.Where(x => x.MonitorPointID == monitorPointId).OrderBy(x => x.SortCode).FirstOrDefault();
            return model;
        }

        /// <summary>
        /// 根据 monitorPointIds 查询
        /// </summary>
        public List<Model.Signal> GetByMonitorPointIds(IEnumerable<long> monitorPointIds)
        {
            if (monitorPointIds == null || monitorPointIds.Count() < 1)
                return default;
            var all = GetCache();
            all = all?.Where(x => monitorPointIds.Contains(x.MonitorPointID)).ToList();
            return all?.OrderBy(x => x.SortCode).ToList();
        }

        /// <summary>
        /// 根据 monitorPointId 查询 信号+信号类型
        /// </summary>
        public List<Model.Signal_SignalType> GetExSignalTypeByMonitorPointID(long monitorPointId)
        {
            var list = GetByMonitorPointID(monitorPointId);
            if (list == null || list.Count < 1)
                return default;
            var ids = list.Select(x => x.SignalTypeID).Distinct().ToList();
            var typeList = new SignalType().GetByIds(ids);
            if (typeList == null || typeList.Count < 1)
                return default;
            var vmList = (from x in list
                          join y in typeList
                          on x.SignalTypeID equals y.ID
                          select new Model.Signal_SignalType(x, y))
                          .ToList();
            return vmList;
        }

        /// <summary>
        /// 根据 monitorPointId 查询第一条 信号+信号类型
        /// </summary>
        public Model.Signal_SignalType GetFirstExSignalTypeByMonitorPointID(long monitorPointId)
        {
            var first = GetFirstByMonitorPointID(monitorPointId);
            if (first == null)
                return default;
            var signalType = new SignalType().GetByID(first.SignalTypeID);
            if (signalType == null)
                return default;
            return new Model.Signal_SignalType(first, signalType);
        }

        /// <summary>
        /// 根据 MonitorPointIds 查询 信号+信号类型
        /// </summary>
        public List<Model.Signal_SignalType> GetExSignalTypeByMonitorPointIds(IEnumerable<long> monitorPointIds)
        {
            if (monitorPointIds == null || monitorPointIds.Count() < 1)
                return default;
            var list = GetByMonitorPointIds(monitorPointIds);
            if (list == null || list.Count < 1)
                return default;
            var ids = list.Select(x => x.SignalTypeID).Distinct().ToList();
            var typeList = new SignalType().GetByIds(ids);
            if (typeList == null || typeList.Count < 1)
                return default;
            var vmList = (from x in list
                          join y in typeList
                          on x.SignalTypeID equals y.ID
                          select new Model.Signal_SignalType(x, y))
                          .ToList();
            return vmList;
        }
        #endregion

        #region Insert

        /// <summary>
        /// 插入
        /// </summary>
        public long Insert(Model.Signal model)
        {
            if (model == null)
                return default;
            var entities = Model2Entity(model);
            var ID = _dal.Insert(entities);
            if (ID > 0)
            {
                UpdateProjectCache(ID);
            }
            return ID;
        }

        /// <summary>
        /// 批量插入
        /// </summary>
        public bool Inserts(IEnumerable<Model.Signal> list)
        {
            if (list == null || list.Count() < 1)
                return default;
            var entities = Model2Entities(list.ToList());
            var Ids = _dal.InsertsR(entities);
            if (Ids != null && Ids.Count > 0)
            {
                UpdateProjectCache(Ids);
                return true;
            }
            return false;
        }

        #endregion

        #region Update

        /// <summary>
        /// 更新
        /// </summary>
        public bool Update(Model.Signal model)
        {
            if (model == null)
                return default;
            if (model.ID < 1)
                return default;
            var entities = Model2Entity(model);
            var bol = _dal.Update(entities);
            if (bol)
            {
                UpdateProjectCache(model.ID);
            }
            return bol;
        }

        /// <summary>
        /// 批量更新
        /// </summary>
        public bool Updates(List<Model.Signal> list)
        {
            if (list == null || list.Count() < 1)
                return default;
            if (list.ToList().Exists(x => x.ID < 1))
                return default;
            var entities = Model2Entities(list.ToList());
            var bol = _dal.Updates(entities);
            if (bol)
            {
                UpdateProjectCache(list.Select(x => x.ID).ToList());
            }
            return bol;
        }

        #endregion

        #region Exist

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

        #region Delete

        /// <summary>
        /// 根据 ID 删除
        /// </summary>
        public bool DeleteByID(long ID, out string msg)
        {
            msg = string.Empty;
            var bol = _dal.DeleteByID(ID);
            if (bol)
            {
                RemoveProjectCache(ID);
            }
            return bol;
        }

        #endregion

        #region Cover

        /// <summary>
        /// 批量覆盖
        /// </summary>
        public bool Covers(IEnumerable<Model.Signal> list)
        {
            if (list == null || list.Count() < 1)
                return default;
            var entities = Model2Entities(list.ToList());
            var bol = _dal.Covers(entities);
            if (bol)
            {
                SignalCacheHelper.Remove();
            }
            return bol;
        }

        /// <summary>
        /// 批量覆盖并返回
        /// </summary> 
        public List<Entity.Signal> CoversR(IEnumerable<Model.Signal> list)
        {
            if (list == null || list.Count() < 1)
                return default;
            var entities = Model2Entities(list.ToList());
            var models = _dal.CoversR(entities);
            if (models != null && models.Count > 0)
            {
                SignalCacheHelper.Remove();
            }
            return models;
        }

        #endregion
    }
}