using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Bowin.Common.Linq.Entity;
using EMIS.ViewModel.TeachingMaterial;
using EMIS.ViewModel;
using EMIS.DataLogic.Common.TeachingMaterial;
using System.Linq.Expressions;
using EMIS.Entities;
using Bowin.Common.Linq;

namespace EMIS.CommonLogic.TeachingMaterial
{
    public class SupplierDiscountSetServices : BaseServices, ISupplierDiscountSetServices
    {
        public SupplierDiscountSetDAL supplierDiscountSetDAL { get; set; }

        public IGridResultSet<SupplierDiscountSetView> GetSupplierDiscountSetViewGrid(ConfiguretView configuretView, bool? isDefault, int pageIndex, int pageSize)
        {
            Expression<Func<ET_SupplierDiscountSet, bool>> exp = (x => true);

            if (isDefault.HasValue)
            {
                exp = exp.And(x => x.IsDefault == isDefault);
            }
            var query = supplierDiscountSetDAL.GetSupplierDiscountSetGridView(exp);

            if (!string.IsNullOrEmpty(configuretView.ConditionValue))
                //return this.GetQueryByDataRangeByCollege(query).DynamicWhere(configuretView.Attribute, configuretView.Condition, configuretView.ConditionValue).OrderBy(x => x.CreateTime).ToGridResultSet<TeachersOrderView>(pageIndex, pageSize);
                query = query.DynamicWhere(configuretView.Attribute, configuretView.Condition, configuretView.ConditionValue).OrderBy(x => x.SupplierDiscountSetID);
            var result = query.OrderBy(x => x.SupplierDiscountSetID).ToGridResultSet<SupplierDiscountSetView>(pageIndex, pageSize);

            return result;
        }

        public List<SupplierDiscountSetView> GetSupplierDiscountSetViewList(ConfiguretView configuretView, bool? isDefault, List<Guid?> supplierDiscountSetIDList)
        {
            Expression<Func<ET_SupplierDiscountSet, bool>> exp = (x => true);
            if (isDefault.HasValue)
            {
                exp = exp.And(x => x.IsDefault == isDefault);
            }
            if (supplierDiscountSetIDList != null)
            {
                exp = exp.And(x => supplierDiscountSetIDList.Contains(x.SupplierDiscountSetID));
            }
            var query = supplierDiscountSetDAL.GetSupplierDiscountSetGridView(exp);

            if (!string.IsNullOrEmpty(configuretView.ConditionValue))
                //return this.GetQueryByDataRangeByCollege(query).DynamicWhere(configuretView.Attribute, configuretView.Condition, configuretView.ConditionValue).OrderBy(x => x.CreateTime).ToGridResultSet<TeachersOrderView>(pageIndex, pageSize);
                query = query.DynamicWhere(configuretView.Attribute, configuretView.Condition, configuretView.ConditionValue).OrderBy(x => x.SupplierDiscountSetID);
            var result = query.OrderBy(x => x.UnitCode).ToList();

            return result;
        }

        public SupplierDiscountSetView GetSupplierDiscountSetView(Guid SupplierDiscountSetID)
        {
            return supplierDiscountSetDAL.GetSupplierDiscountSetGridView(x => x.SupplierDiscountSetID == SupplierDiscountSetID).FirstOrDefault();
        }

        public void SupplierDiscountSetViewEdit(SupplierDiscountSetView supplierDiscountSetView)
        {
            try
            {
                //查询数据库进行验证
                var supplierDiscountSetVerification = supplierDiscountSetDAL.supplierDiscountSetRepository
                        .GetSingle(x => x.SupplierDiscountSetID != supplierDiscountSetView.SupplierDiscountSetID
                        && x.PublishID == supplierDiscountSetView.PublishID
                        && x.Discount == supplierDiscountSetView.Discount);

                if (supplierDiscountSetVerification == null)
                {
                    if (supplierDiscountSetView.IsDefault == true)
                    {//只允许一个供应商为默认
                        List<ET_SupplierDiscountSet> supplierDiscountSetList = supplierDiscountSetDAL.supplierDiscountSetRepository.GetList(x => x.IsDefault == true).ToList();
                        foreach (ET_SupplierDiscountSet sdset in supplierDiscountSetList)
                        {
                            sdset.IsDefault = false;//当新增或修改的供应商为默认时，将数据库中为默认的供应商改为false
                            SetModifyStatus(sdset);
                        }
                    }

                    if (supplierDiscountSetView.SupplierDiscountSetID != Guid.Empty)
                    {
                        var supplierDiscountSet = supplierDiscountSetDAL.supplierDiscountSetRepository
                                .GetSingle(x => x.SupplierDiscountSetID == supplierDiscountSetView.SupplierDiscountSetID);
                        //修改
                        supplierDiscountSet.PublishID = supplierDiscountSetView.PublishID;
                        supplierDiscountSet.Discount = supplierDiscountSetView.Discount;
                        
                        supplierDiscountSet.IsDefault = supplierDiscountSetView.IsDefault;
                        SetModifyStatus(supplierDiscountSet);
                    }
                    else
                    {
                        //新增
                        ET_SupplierDiscountSet supplierDiscountSet = new ET_SupplierDiscountSet();
                        supplierDiscountSet.SupplierDiscountSetID = Guid.NewGuid();
                        supplierDiscountSet.PublishID = supplierDiscountSetView.PublishID;
                        supplierDiscountSet.Discount = supplierDiscountSetView.Discount;
                        supplierDiscountSet.IsDefault = supplierDiscountSetView.IsDefault;
                        SetNewStatus(supplierDiscountSet);
                        UnitOfWork.Add(supplierDiscountSet);
                    }
                }
                else
                {
                    throw new Exception("已存在相同的供应商折扣率设置，请核查");
                }

                //事务提交
                UnitOfWork.Commit();
            }
            catch (Exception ex)
            {

                throw new Exception(ex.Message);
            }
        }

        /// <summary>
        /// 删除
        /// </summary>
        /// <param name="graduationCourseIDList"></param>
        /// <returns></returns>
        public void SupplierDiscountSetDelete(IList<Guid?> supplierDiscountSetIDList)
        {
            try
            {
                UnitOfWork.Delete<ET_SupplierDiscountSet>(x => supplierDiscountSetIDList.Contains(x.SupplierDiscountSetID));
                UnitOfWork.Commit();
            }
            catch (Exception ex)
            {
                throw new Exception(ex.Message);
            }
        }

        public decimal? GetDiscountByPublishID(Guid publishID)
        {
            decimal? discount = 1;
            if (supplierDiscountSetDAL.supplierDiscountSetRepository.GetSingle(x => x.PublishID == publishID) != null)
            {
                discount = supplierDiscountSetDAL.supplierDiscountSetRepository.GetSingle(x => x.PublishID == publishID).Discount;
            }
            return discount;
        }
    }
}