using Grpc.Core;
using Grpc.Extension.Abstract;
using Microsoft.AspNetCore.Authorization;
using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using TEAMModelGrpc.Models;
using TEAMModelOS;
using TEAMModelOS.Models;
using TEAMModelOS.SDK.Context.Exception;
using TEAMModelOS.SDK.Helper.Common.CollectionHelper;
using TEAMModelOS.SDK.DI;
using TEAMModelOS.Models.StudentInfo;
using TEAMModelOS.Models.Dto;
using TEAMModelOS.Models.TeacherInfo;

namespace TEAMModelGrpc.Services
{
    public class HomeWorkService : IGrpcService
    {
        private readonly AzureCosmosFactory _azureCosmos;

        public HomeWorkService(AzureCosmosFactory azureCosmos)
        {
            _azureCosmos = azureCosmos;
        }

        /// <summary>
        /// 学生作业打分评论
        /// </summary>
        /// <param name="homeWorkCommentDto"></param>
        /// <param name="context"></param>
        /// <returns></returns>
        [Authorize]
        public async Task<HomeworkRecord> StudentScoring(HomeworkCommentDto homeWorkCommentDto, ServerCallContext context) 
        {
            List<HomeworkRecord> homeWorkStudents = await _azureCosmos.FindByDict<HomeworkRecord>(new Dictionary<string, object> { { "code", homeWorkCommentDto.homeWorkId }, { "id", homeWorkCommentDto.homeWorkId } });
            List<Homework> homeWorks = await _azureCosmos.FindByDict<Homework>(new Dictionary<string, object> { { "id", homeWorkCommentDto.homeWorkId } });
            HomeworkRecord data = new HomeworkRecord();

            if (homeWorks.IsNotEmpty() && homeWorks[0].other.Contains("comment"))
            {
                if (homeWorkStudents.IsNotEmpty())
                {
                    if (string.IsNullOrEmpty(homeWorkCommentDto.commentid))
                    {
                        //评论
                        StudentComment homeWorkComment = new StudentComment
                        {
                            comment = homeWorkCommentDto.comment,
                            createTime = new DateTimeOffset(DateTime.UtcNow).ToUnixTimeSeconds(),
                            fromId = homeWorkCommentDto.fromId,
                            score = homeWorkCommentDto.score
                        };
                        homeWorkStudents[0].stuCmt.Add(homeWorkComment);
                    }
                    else
                    {
                        //回复评论
                        foreach (StudentComment comment in homeWorkStudents[0].stuCmt)
                        {
                            if (comment.commentid == homeWorkCommentDto.commentid)
                            {
                                Reply reply = new Reply();
                                reply.fromId = homeWorkCommentDto.fromId;
                                reply.toId = homeWorkCommentDto.toId;
                                reply.identity = homeWorkCommentDto.identity;
                                reply.comment = homeWorkCommentDto.comment;
                                reply.createTime = new DateTimeOffset(DateTime.UtcNow).ToUnixTimeMilliseconds();
                                comment.reply.Add(reply);
                            }
                        }
                    }
                    //homeWorkStudents[0].comments[request.@params.TEAMModelId] = request.@params.comment;
                    data = await _azureCosmos.Update(homeWorkStudents[0]);
                }
                return data;
            }
            else throw new BizException("未开放互评");
        }


        /// <summary>
        /// 教师作业打分评论
        /// </summary>
        /// <param name="homeWorkCommentDto"></param>
        /// <param name="context"></param>
        /// <returns></returns>
        public async Task<HomeworkRecord> TeacherScoring(HomeworkScoringDto homeWorkCommentDto, ServerCallContext context)
        {

            List<HomeworkRecord> homeWorkStudents = await _azureCosmos.FindByDict<HomeworkRecord>(new Dictionary<string, object> { { "code", homeWorkCommentDto.studentId }, { "id", homeWorkCommentDto.homeWorkId } });
            HomeworkRecord data = new HomeworkRecord();
            if (homeWorkStudents.IsNotEmpty())
            {

                homeWorkStudents[0].score = homeWorkCommentDto.score ?? homeWorkStudents[0].score;
                HomeWorkComment homeWorkComment = new HomeWorkComment
                {
                    comment = homeWorkCommentDto.comments,
                    createTime = new DateTimeOffset(DateTime.UtcNow).ToUnixTimeSeconds(),
                    TEAMModelId = homeWorkCommentDto.TEAMModelId
                };

                homeWorkStudents[0].tchCmt = homeWorkComment;
                data = await _azureCosmos.SaveOrUpdate(homeWorkStudents[0]);

            }
            return data;
        }


        /// <summary>
        /// 查询教师评语罐头
        /// </summary>
        /// <param name="dict"></param>
        /// <param name="responseStream"></param>
        /// <param name="context"></param>
        /// <returns></returns>
        public async System.Threading.Tasks.Task FindTeacherComments(Dict dict, IServerStreamWriter<Comment> responseStream, ServerCallContext context) 
        {
            Dictionary<string, object> keyValuePairs = dict.ToDict();
            List<Comment> teacherComments = new List<Comment>();
            if (keyValuePairs.IsNotEmpty()) {
                teacherComments = await _azureCosmos.FindByDict<Comment>(keyValuePairs);
                if (teacherComments.IsNotEmpty()) {
                    teacherComments.ForEach(x=> { 
                        responseStream.WriteAsync(x);
                    });
                }
            }
            
        }

    }
}