namespace YLErp.Modules.UnderlyingModule
{
    /// <summary>
    /// 板块性质服务
    /// </summary>
    public class UnderlyingBlockService : YLBaseService
    {
        public UnderlyingBlockService(OptUserInfo userInfo) : base(userInfo)
        {
        }

        /// <summary>
        /// 获取所有板块名称
        /// </summary>
        public IEnumerable<UnderlyingBlockConfig> GetBlocks(int? group)
        {
            var predicate = PredicateBuilder.Create<UnderlyingBlockConfig>(n => n.Group > 0);
            if (group.HasValue)
            {
                predicate = predicate.And(n => n.Group == group.Value);
            }
            return DbContext.UnderlyingBlockConfig.AsNoTracking()
                .Where(predicate).OrderByDescending(n => n.id).ToArray();
        }

        public int SaveData(UnderlyingBlockConfig model)
        {
            UnderlyingBlockConfig dbModel;

            if (model.id > 0)
            {
                dbModel = DbContext.UnderlyingBlockConfig.Find(model.id);
                if (DbContext.UnderlyingBlockConfig.Any(n => n.id != model.id && n.Group == dbModel.Group && n.Name == model.Name))
                {
                    throw new ServiceException("板块性质名称不能重复");
                }
                if (dbModel == null)
                {
                    throw new ServiceException("数据不存在");
                }
                dbModel.Name = model.Name;
                dbModel.OptId = model.OptId;
                dbModel.OptName = model.OptName;
            }
            else if (model.Group < 1 || model.Group > 5)
            {
                throw new ServiceException("group参数无效:" + model.Group);
            }
            else if (DbContext.UnderlyingBlockConfig.Any(n => n.id != model.id && n.Group == model.Group && n.Name == model.Name))
            {
                throw new ServiceException("板块性质名称不能重复");
            }
            else
            {
                DbContext.UnderlyingBlockConfig.Add(dbModel = model);
            }

            dbModel.OptDate = DateTime.Now;

            return DbContext.SaveChanges();
        }

        public int RemoveDatas(int optId, string optName, params int[] ids)
        {
            if (ids == null || !ids.Any()) return 0;
            var datas = DbContext.UnderlyingBlockConfig.Where(n => ids.Contains(n.id)).ToArray();
            foreach (var data in datas)
            {
                data.Group = -1;
                data.OptId = optId;
                data.OptName = optName;
                data.OptDate = DateTime.Now;
            }
            return DbContext.SaveChanges();
        }
    }
}