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

namespace EMIS.CommonLogic.PaymentManage
{
    public class WorktimeRateServices : BaseServices, IWorktimeRateServices
    {
        public WorktimeRateDAL WorktimeRateDAL { get; set; }

        public IGridResultSet<WorktimeRateView> GetWorktimeRateViewList(ConfiguretView worktimeRateConditionView,
            Guid? collegeID, int? teachingModeID, int? teachingMethodID, int? paymentLevelID, int? pageIndex, int? pageSize)
        {
            Expression<Func<TP_WorktimeRate, bool>> exp = (x => x.RecordStatus > (int)SYS_STATUS.UNUSABLE);

            if (collegeID.HasValue)
            {
                exp = exp.And(x => x.CollegeID == collegeID);
            }
            if (teachingModeID.HasValue)
            {
                exp = exp.And(x => x.TeachingModeID == teachingModeID);
            }
            if (teachingMethodID.HasValue)
            {
                exp = exp.And(x => x.TeachingMethodID == teachingMethodID);
            }
            if (paymentLevelID.HasValue)
            {
                exp = exp.And(x => x.PaymentLevelID == paymentLevelID);
            }

            var query = WorktimeRateDAL.GetWorktimeRateViewQueryable(exp);

            if (!string.IsNullOrEmpty(worktimeRateConditionView.ConditionValue) && !string.IsNullOrEmpty(worktimeRateConditionView.Attribute))
                query = query.DynamicWhere(worktimeRateConditionView.Attribute, worktimeRateConditionView.Condition, worktimeRateConditionView.ConditionValue);

            query = this.GetQueryByDataRangeByCollege(query);

            query = query.OrderBy(x => x.CollegeNo.Length)
                .ThenBy(x => x.CollegeNo)
                .ThenBy(x => x.TeachingModeID)
                .ThenBy(x => x.TeachingMethodID)
                .ThenBy(x => x.PaymentLevelID)
                .ThenBy(x => x.StudentCountStart);

            return query.ToGridResultSet(pageIndex, pageSize);
        }

        public List<WorktimeRateView> GetWorktimeRateViewList(ConfiguretView worktimeRateConditionView,
            Guid? collegeID, int? teachingModeID, int? teachingMethodID, int? paymentLevelID)
        {
            Expression<Func<TP_WorktimeRate, bool>> exp = (x => x.RecordStatus > (int)SYS_STATUS.UNUSABLE);

            if (collegeID.HasValue)
            {
                exp = exp.And(x => x.CollegeID == collegeID);
            }
            if (teachingModeID.HasValue)
            {
                exp = exp.And(x => x.TeachingModeID == teachingModeID);
            }
            if (teachingMethodID.HasValue)
            {
                exp = exp.And(x => x.TeachingMethodID == teachingMethodID);
            }
            if (paymentLevelID.HasValue)
            {
                exp = exp.And(x => x.PaymentLevelID == paymentLevelID);
            }

            var query = WorktimeRateDAL.GetWorktimeRateViewQueryable(exp);

            if (!string.IsNullOrEmpty(worktimeRateConditionView.ConditionValue) && !string.IsNullOrEmpty(worktimeRateConditionView.Attribute))
                query = query.DynamicWhere(worktimeRateConditionView.Attribute, worktimeRateConditionView.Condition, worktimeRateConditionView.ConditionValue);

            query = this.GetQueryByDataRangeByCollege(query);

            query = query.OrderBy(x => x.CollegeNo.Length)
                .ThenBy(x => x.CollegeNo)
                .ThenBy(x => x.TeachingModeID)
                .ThenBy(x => x.TeachingMethodID)
                .ThenBy(x => x.PaymentLevelID)
                .ThenBy(x => x.StudentCountStart);

            return query.ToList();
        }

        public WorktimeRateView GetWorktimeRateView(Guid? worktimeRateID)
        {
            var query = WorktimeRateDAL.GetWorktimeRateViewQueryable(x => x.WorktimeRateID == worktimeRateID);
            return query.FirstOrDefault();
        }

        public void Save(WorktimeRateView worktimeRateView)
        {
            TP_WorktimeRate worktimeRate = new TP_WorktimeRate();
            var dupWorktimeRate = WorktimeRateDAL.WorktimeRateRepository.GetSingle(x => x.CollegeID == worktimeRateView.CollegeID
                && x.TeachingModeID == worktimeRateView.TeachingModeID && x.TeachingMethodID == worktimeRateView.TeachingMethodID
                && x.PaymentLevelID == worktimeRateView.PaymentLevelID
                && (
                    (worktimeRateView.StudentCountEnd == null || x.StudentCountStart <= worktimeRateView.StudentCountEnd)
                    && (x.StudentCountEnd == null || x.StudentCountEnd >= worktimeRateView.StudentCountStart)
                )
                && x.WorktimeRateID != worktimeRateView.WorktimeRateID
                );
            if (dupWorktimeRate != null)
            {
                throw new Exception("已有相同的工作量系数设置，请勿重复设置。");
            }

            if (worktimeRateView.WorktimeRateID == null || worktimeRateView.WorktimeRateID == Guid.Empty)
            {
                worktimeRate = new TP_WorktimeRate();
                worktimeRate.WorktimeRateID = Guid.NewGuid();
                SetNewStatus(worktimeRate);
                UnitOfWork.Add(worktimeRate);
            }
            else
            {
                worktimeRate = WorktimeRateDAL.WorktimeRateRepository.GetSingle(x => x.WorktimeRateID == worktimeRateView.WorktimeRateID);
                if (worktimeRate == null)
                {
                    throw new Exception("未能找到需要修改的数据，数据可能已被其他用户更改。");
                }
                SetModifyStatus(worktimeRate);
            }
            worktimeRate.CollegeID = worktimeRateView.CollegeID;
            worktimeRate.TeachingModeID = worktimeRateView.TeachingModeID;
            worktimeRate.TeachingMethodID = worktimeRateView.TeachingMethodID;
            worktimeRate.PaymentLevelID = worktimeRateView.PaymentLevelID;
            worktimeRate.StudentCountStart = worktimeRateView.StudentCountStart;
            worktimeRate.StudentCountEnd = worktimeRateView.StudentCountEnd;
            worktimeRate.WorktimeRate = worktimeRateView.WorktimeRate;
            UnitOfWork.Commit();
        }

        public void Delete(IList<Guid?> worktimeRateIDList)
        {
            if (worktimeRateIDList.Count > 0)
            {
                UnitOfWork.Delete<TP_WorktimeRate>(x => worktimeRateIDList.Contains(x.WorktimeRateID));
            }
        }
    }
}