import {Injectable} from "@nestjs/common";
import {ReadDto} from "../entity";
import {RedisService} from "./redis.service";
import {ResultData} from "../const/result";

@Injectable()
export class MessageService {
    constructor(private readonly redisService: RedisService) {
    }

    // 获取未读消息
    async getUnread(readDto: ReadDto) {
        let data = await this.redisService.getValue(`${readDto.groupId}_${readDto.userId}`)
        data = data == null ? [] : JSON.parse(data)
        return ResultData.success(data)
    }

    // 未读 -> 已读
    async read(readDto: ReadDto) {
        this.redisService.delValue(`${readDto.groupId}_${readDto.userId}`)
        return ResultData.success()
    }
}