agregando metodo para el login en el service

import { Injectable, UnauthorizedException } from '@nestjs/common';

import { HttpException, HttpStatus, Injectable } from '@nestjs/common';

import { AdminService } from 'src/admin/admin.service';

import { JwtService } from '@nestjs/jwt';

import { EncryptionService } from '../encryption/encryption.service';

import { CreateAdminDto } from 'src/admin/dto/create-admin.dto';

import { LoginAdminDto } from 'src/auth/admin/dto/login-admin.dto';

import { JwtConstants } from 'src/constants/jwt.constants';

import { AdminSigninResDto } from './dto/admin-signin-res.dto';

import { Admin } from 'src/admin/entities/admin.entity';

import { ADMIN_ROLE } from 'src/enum/admin-role.enum';

@Injectable()

export class AuthAdminService {

    createAdminDto.password = hashedPwd;

    await this.adminService.create(createAdminDto);

    const accessToken = await this.signIn(loginAdminDto);

    return accessToken;

    const adminSigninResDto: AdminSigninResDto =

      await this.signIn(loginAdminDto);

    return adminSigninResDto.token;

  }

  async signIn(logInAdmin: LoginAdminDto): Promise<string> {

    const admin = await this.adminService.findOne(logInAdmin.email);

  async signIn(logInAdmin: LoginAdminDto): Promise<AdminSigninResDto> {

    const admin: Admin = await this.adminService.findOne(logInAdmin.email);

    const validPwd: boolean = await this.encryptionService.comparePassword(

      logInAdmin.password,

      admin.password,

    );

    if (!validPwd) throw new UnauthorizedException('Invalid credentials');

    if (!validPwd) {

      throw new HttpException('Invalid credentials', HttpStatus.UNAUTHORIZED);

    }

    const accessToken = await this.jwtService.sign(

      { email: admin.email },

      { secret: JwtConstants.SECRET },

    );

    return accessToken;

    const adminSigninResDto: AdminSigninResDto = {

      email: admin.email,

      name: admin.name,

      role: admin.role as ADMIN_ROLE,

      token: accessToken,

    };

    return adminSigninResDto;

  }

}