using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using EMISOnline.DataLogic.Repositories;
using EMISOnline.DataLogic.Student;
using EMISOnline.ViewModel.Student;
using EMISOnline.Entities;
using System.Linq.Expressions;
using Bowin.Common.Linq.Entity;
using Bowin.Common.Linq;

namespace EMISOnline.CommonLogic.StudentServices
{
    public class CourseScoreServices : ICourseScoreServices
    {
        //public TeacherScoreRepository teacherScoreRepository { get; set; }
        //public LoginCountRepository loginCountRepository { get; set; }
        public CoursematerialDAL CoursematerialDAL { get; set; }
        public SchoolyearDAL SchoolyearDAL { get; set; }
        public CourseScoreDAL courseScoreDAL { get; set; }



        public CorseStudyScoreView getCorseStudyScoreInfo(Guid? CoursematerialID, Guid UserID)
        {
            CorseStudyScoreView model = new CorseStudyScoreView();
            var scoreRule = CoursematerialDAL.GetScoreRule();
            var teacherscore = CoursematerialDAL.teacherScoreRepository.GetSingle(w => w.CoursematerialID == CoursematerialID && w.UserID == UserID);
            var curschoolYear=SchoolyearDAL.GetCurSchoolyear();

            model.CoursematerialID = CoursematerialID.Value;
            var corseModel = CoursematerialDAL.loginCountRepository.UnitOfWork.EM_Coursematerial.FirstOrDefault(w => w.CoursematerialID == CoursematerialID);
            model.CourseName = corseModel.CourseName;

            if(scoreRule==null)
            {
                return model;
            }
            //老师评分
            model.TeacherScore = teacherscore!=null && teacherscore.Score.HasValue ? teacherscore.Score.Value : 0;

            var maxTeacherScore=(scoreRule.TeacherScore.HasValue?scoreRule.TeacherScore.Value:0);

            model.TeacherScore = maxTeacherScore <= model.TeacherScore ? maxTeacherScore : model.TeacherScore;

            //登陆成绩
            var logincount = CoursematerialDAL.loginCountRepository.GetSingle(w => w.SchoolyearID == curschoolYear.SchoolyearID && w.UserID == UserID);

            if (logincount == null)
            {
                model.loginScore = 0;
            }
            else
            {
                decimal loginScore = (scoreRule.LoginEachTime.HasValue?scoreRule.LoginEachTime.Value:0) * (logincount.LoginCount.HasValue?logincount.LoginCount.Value:0);

                model.loginScore = loginScore >= scoreRule.LoginMax.Value ? scoreRule.LoginMax.Value : loginScore;
            }

            //课程评分
            var courseStudy = CoursematerialDAL.loginCountRepository.UnitOfWork.EM_CourseStudyStatus.FirstOrDefault(w => w.CoursematerialID == CoursematerialID && w.UserID == UserID);

            if (courseStudy == null)
            {
                model.StudyRate = 0;
                model.studyScore = 0;
            }
            else
            {
                int LastCourseVideoLength = courseStudy.LastCourseVideoLength.HasValue ? courseStudy.LastCourseVideoLength.Value : 0;

                var LastCourseVideoMin = LastCourseVideoLength / 60;
                var curCoursewareScore = (scoreRule.CoursewareEachTime.HasValue?scoreRule.CoursewareEachTime.Value:0) * LastCourseVideoMin;

                var CoursewareMax=scoreRule.CoursewareMax.HasValue ? scoreRule.CoursewareMax.Value : 0;

                model.studyScore = CoursewareMax <= curCoursewareScore ? curCoursewareScore : CoursewareMax;

                model.StudyRate = Math.Round(model.studyScore / CoursewareMax, 3);

            }

            //作业成绩
            model.homeWorkScore = 0;//等作业设置

            model.TitleScore = model.TeacherScore + model.studyScore + model.loginScore + model.homeWorkScore;
            

            return model;
        }


        public IGridResultSet<studentEducationMissionClassAddView> CorseStudyScoreList(int pageIndex, int pageSize, string CoursematerialName, string Years,Guid UserID)
        {
            var sql = courseScoreDAL.getStudentEducationAdd(UserID, CoursematerialName, Years);


            var datas=sql.OrderByDescending(o=>o.yearCode).ThenByDescending(o=>o.EducationMissionClassID).ToGridResultSet(pageIndex, pageSize);

            //添加成绩计算成绩
            datas.rows.ForEach(it => it.CorseStudyScoreModel = getCorseStudyScoreInfo(it.CoursematerialID,it.UserID));

            return datas;
        }

        
    }
}