TEAMModelOS/TEAMModelOS.Extension/IES.Exam/IES.ExamServer/Controllers/StudentController.cs

using IES.ExamLibrary.Models;
using IES.ExamServer.DI;
using IES.ExamServer.Helper;
using IES.ExamServer.Models;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Caching.Memory;
using Microsoft.Extensions.Hosting;
using Microsoft.VisualBasic;
using System;
using System.Text.Json.Nodes;

namespace IES.ExamServer.Controllers
{
    [ApiController]
    [Route("student")]
    public class StudentController : BaseController
    {
        private readonly IConfiguration _configuration;
        private readonly IHttpClientFactory _httpClientFactory;
        private readonly IMemoryCache _memoryCache;
        private readonly ILogger<IndexController> _logger;
        private readonly CenterServiceConnectionService _connectionService;
        private readonly LiteDBFactory _liteDBFactory;
        public StudentController(ILogger<IndexController> logger, IConfiguration configuration, IHttpClientFactory httpClientFactory,
         IMemoryCache memoryCache, CenterServiceConnectionService connectionService, LiteDBFactory liteDBFactory)
        {
            _logger = logger;
            _configuration=configuration;
            _httpClientFactory=httpClientFactory;
            _memoryCache=memoryCache;
            _connectionService=connectionService;
            _liteDBFactory=liteDBFactory;
        }
        /// <summary>
        /// 提交作答
        /// </summary>
        /// <param name="json"></param>
        /// <returns></returns>
        [HttpPost("submit-answer")]
        public IActionResult SubmitAnswer(JsonNode json)
        {
            //提交作答，多种保存方式，在数据库，文件中，缓存中，以及日志中都记录防止丢失。
            return Ok();
        }
        /// <summary>
        /// 登录
        /// </summary>
        /// <param name="json"></param>
        /// <returns></returns>
        [HttpPost("login")]
        public IActionResult Login(JsonNode json) 
        {
            string? studentId = json["studentId"]?.ToString();
            string? studentName = json["studentName"]?.ToString();
            string? evaluationId = json["evaluationId"]?.ToString();
            EvaluationRoundSetting? setting = _liteDBFactory.GetLiteDatabase().GetCollection<EvaluationRoundSetting>().FindOne(x => x.id!.Equals(evaluationId)&& x.activate==1);
            EvaluationClient? evaluationClient = null;
            if (setting!=null)
            {
                evaluationClient = _liteDBFactory.GetLiteDatabase().GetCollection<EvaluationClient>().FindOne(x => x.id == setting.evaluationId);
                if (evaluationClient!=null) 
                {
                    (code, msg)=  CheckActivate(evaluationClient, setting);
                    if (code==200)
                    {
                        long time = DateTimeOffset.Now.ToUnixTimeMilliseconds();
                        _memoryCache.TryGetValue(Constant._KeyServerDevice, out ServerDevice? server);
                        School? school = null;
                        ///获取名单文件，解析信息，应该在设置开考轮次的时候进行解析，并放在数据库中，并且在此时看是否是需要 分配试卷，还是在登录的时候获取试卷。
                        if (server!=null)
                        {
                            school = server.school;
                        }
                        string id = $"{studentId}";
                        string name = $"{studentName}";
                        string  x_auth_token = JwtAuthExtension.CreateAuthToken("www.teammodel.cn", id, name, picture: string.Empty
                            , ExamConstant.JwtSecretKey, ExamConstant.ScopeVisitor, 8, schoolID: school?.id, new string[] { "student" }, expire: 1);
                        _liteDBFactory.GetLiteDatabase().GetCollection<Teacher>().Upsert(new Teacher { id = id, name = $"{name}",  picture = null, x_auth_token = x_auth_token, loginTime=time });
                        return Ok(new { code = 200, x_auth_token = x_auth_token });
                    }
                }
            }
            return Ok(new { msg =msg, code = 200 });
        }
        /// <summary>
        /// 学生端获取激活的考试
        /// </summary>
        /// <param name="json"></param>
        /// <returns></returns>
        [HttpPost("get-activate-evaluation")]
        public   IActionResult GetActivateEvaluation(JsonNode json) 
        {
            //  _connectionService.serverDevice.school.id?

            try
            {
                IEnumerable<EvaluationRoundSetting>? settings = _liteDBFactory.GetLiteDatabase().GetCollection<EvaluationRoundSetting>().Find(x =>x.activate==1 );
                if (settings != null && settings.Count() > 0) 
                {
                    if (settings.Count()>1)
                    {
                        msg="有多个正在开考的评测，请监考教师重新设置开考评测。";
                        code=2;
                    }
                    else 
                    {
                        EvaluationRoundSetting? setting = settings.First(); ;

                        EvaluationClient evaluationClient = _liteDBFactory.GetLiteDatabase().GetCollection<EvaluationClient>().FindOne(x => x.id ==setting.evaluationId);
                        if (evaluationClient!=null)
                        {
                            (code ,msg)= CheckActivate(evaluationClient, setting);
                            var anonymousObject = new Dictionary<string, object?>();
                            var properties = evaluationClient.GetType().GetProperties();
                            foreach (var property in properties)
                            {
                                if (!property.Name.Equals("shortCode") && !property.Name.Equals("openCode"))
                                {
                                    anonymousObject[property.Name] = property.GetValue(evaluationClient);
                                }
                            }
                            return Ok(new { evaluationClient = anonymousObject, code = code, msg = msg, setting });
                        }
                        else 
                        {
                            msg="未找到评测信息。";
                            code=6;
                        }
                        //foreach (var subject in evaluationClient.subjects)
                        //{
                        //    foreach (var paper in subject.papers)
                        //    {
                        //        paper.blob=$"package/{evaluationClient.id}/papers/{paper.paperId}";
                        //    }
                        //}
                      
                    }
                }
                else
                {
                    msg="暂无正在开考的评测";
                    code=1;
                }
            }
            catch (Exception ex) { }
            return Ok(new { msg ,code});
        }

        private (int code, string msg) CheckActivate(EvaluationClient evaluationClient, EvaluationRoundSetting setting)
        {
            code = 200;
            if (evaluationClient.scope!.Equals("school"))
            {
                if (!evaluationClient!.ownerId!.Equals($"{_connectionService.serverDevice?.school?.id}"))
                {
                    msg="授权学校与评测归属学校不一致。";
                    code=3;
                }
            }
            //当前时间
            long now = DateTimeOffset.Now.ToUnixTimeMilliseconds();
            if (setting.countdownType>0)
            {
                if (setting.startline>now || evaluationClient.stime>now)
                {
                    msg="评测暂未开始。";
                    code=4;
                }
                if ((setting.deadline>0 && setting.deadline<now)|| evaluationClient.etime<now)
                {
                    msg="评测已经结束。";
                    code=5;
                }
            }
            else
            {
                if (evaluationClient.stime>now)
                {
                    msg="评测暂未开始。";
                    code=4;
                }
                if (evaluationClient.etime<now)
                {
                    msg="评测已经结束。";
                    code=5;
                }
            }
            return (code, msg);
        }
       
    }
}