using IRaCIS.Core.Domain;
using IRaCIS.Core.Domain.BaseModel;
using IRaCIS.Core.Domain.Models;
using IRaCIS.Core.Domain.Share;
using IRaCIS.Core.Infrastructure.Extention;
using Microsoft.EntityFrameworkCore.ChangeTracking;
using Newtonsoft.Json;

namespace IRaCIS.Core.Infra.EFCore;



public static class DBContext_Ext
{
    public static void AddDomainEvents(this DbContext context)
    {
        var dbContext = (IRaCISDBContext)context;

        var changeTracker = context.ChangeTracker;

        //记录要保存到数据库的事件
        var eventStoreList = new List<EventStoreRecord>();

        #region 中心调研邮件通知

        foreach (var entry in changeTracker.Entries<TrialSiteSurvey>())
        {
            var trialSiteSurvey = entry.Entity;

            var originState = entry.Property(p => p.State).OriginalValue;

            //状态从待提交 变为CRC提交  （驳回也会变为已提交，所以必须设置前置状态是待提交）
            if (trialSiteSurvey.State == TrialSiteSurveyEnum.CRCSubmitted && originState == TrialSiteSurveyEnum.ToSubmit)
            {
                trialSiteSurvey.AddDomainEvent(new UserSiteSurveySubmitedEvent() { TrialSiteSurveyId = trialSiteSurvey.Id });
            }

            //SPM CPM 提交的时候
            else if (trialSiteSurvey.State == TrialSiteSurveyEnum.SPMApproved && originState == TrialSiteSurveyEnum.CRCSubmitted)
            {
                trialSiteSurvey.AddDomainEvent(new SiteSurveySPMSubmitedEvent() { TrialSiteSurveyId = trialSiteSurvey.Id });
            }

            //PM 驳回 (在消费者中具体判断 是驳回给谁发邮件)
            else if ((trialSiteSurvey.State == TrialSiteSurveyEnum.CRCSubmitted || trialSiteSurvey.State == TrialSiteSurveyEnum.ToSubmit) && originState == TrialSiteSurveyEnum.SPMApproved)
            {
                trialSiteSurvey.AddDomainEvent(new SiteSurverRejectedEvent() { TrialSiteSurveyId = trialSiteSurvey.Id });
            }

            //添加进记录
            eventStoreList.AddRange(trialSiteSurvey.DomainEvents.Select(t => new EventStoreRecord() { EventType = t.GetType().Name, EventData = t.ToJsonStr() }));
        }



        #endregion


        #region PD 入组发送邮件（不侵入之前的代码，有些判断过于复杂的，在代码里面有的，就手动 在跟踪的实体添加领域事件）

        foreach (var entry in changeTracker.Entries<SubjectVisit>())
        {

        }

        #endregion



        //跟随事务一起保存数据库
        dbContext.EventStoreRecord.AddRangeAsync(eventStoreList);
    }


    #region 暂时废弃
    /// <summary>
    /// 暂时废弃，没有场景使用
    /// </summary>
    /// <param name="context"></param>
    public static void AddDomainCommands(this DbContext context)
    {
        var changeTracker = context.ChangeTracker;





        //遍历 ChangeTracker 中的实体
        //foreach (var entry in changeTracker.Entries<UserLog>())
        //{
        //    var userLog = entry.Entity;

        //    if (entry.State == EntityState.Added)
        //    {
        //        // 受试者添加 触发访视自动添加
        //        var addCommand = new AddUserLogTriggerCommand { UserLog=userLog };

        //        userLog.AddDomainCommand(addCommand);
        //    }
        //}

        //foreach (var entry in changeTracker.Entries<Subject>())
        //{
        //    var subject = entry.Entity;

        //    if (entry.State == EntityState.Added)
        //    {
        //        // 受试者添加 触发访视自动添加
        //        var addedEvent = new AddSubjectTriggerCommand { SubjectId = subject.Id, TrialId = subject.TrialId, TrialSiteId = subject.TrialSiteId };

        //        subject.AddDomainCommand(addedEvent);
        //    }
        //}
    }

    #endregion



}