57 lines
2.2 KiB
C#
57 lines
2.2 KiB
C#
using AutoMapper;
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using IM_API.Application.Interfaces;
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using IM_API.Domain.Events;
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using IM_API.Dtos;
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using IM_API.Exceptions;
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using IM_API.Interface.Services;
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using IM_API.Models;
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using IM_API.Services;
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using IM_API.Tools;
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using Microsoft.EntityFrameworkCore;
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using Newtonsoft.Json;
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namespace IM_API.Application.EventHandlers
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{
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public class ConversationEventHandler : IEventHandler<MessageCreatedEvent>
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{
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private readonly IConversationService _conversationService;
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private readonly ILogger<ConversationEventHandler> _logger;
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private readonly ImContext _context;
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private readonly IMapper _mapper;
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public ConversationEventHandler(
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IConversationService conversationService,
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ILogger<ConversationEventHandler> logger,
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ImContext imContext,
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IMapper mapper
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)
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{
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_conversationService = conversationService;
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_logger = logger;
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_context = imContext;
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_mapper = mapper;
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}
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public async Task Handle(MessageCreatedEvent @event)
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{
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if(@event.ChatType == ChatType.PRIVATE)
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{
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Conversation? userAConversation = await _context.Conversations.FirstOrDefaultAsync(
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x => x.UserId == @event.MsgSenderId && x.TargetId == @event.MsgRecipientId
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);
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Conversation? userBConversation = await _context.Conversations.FirstOrDefaultAsync(
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x => x.UserId == @event.MsgRecipientId && x.TargetId == @event.MsgSenderId
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);
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if(userAConversation is null || userBConversation is null)
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{
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_logger.LogError("消息事件更新会话信息失败：{@event}",@event);
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}
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userAConversation.LastMessage = @event.MessageContent;
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userAConversation.LastReadMessageId = @event.MessageId;
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userBConversation.LastMessage = @event.MessageContent;
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userBConversation.UnreadCount += 1;
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_context.UpdateRange(userAConversation,userBConversation);
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await _context.SaveChangesAsync();
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}
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}
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}
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}
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