create use cases for auth

src/modules/auth/use-cases/refresh-token-use-case.ts

@@ -0,0 +1,35 @@
+import { CommandHandler, ICommandHandler } from '@nestjs/cqrs'
+import { AuthRepository } from '../infrastructure/auth.repository'
+import jwt from 'jsonwebtoken'
+import { addDays } from 'date-fns'
+
+export class RefreshTokenCommand {
+  constructor(public readonly userId: string) {}
+}
+
+@CommandHandler(RefreshTokenCommand)
+export class RefreshTokenHandler implements ICommandHandler<RefreshTokenCommand> {
+  constructor(private readonly authRepository: AuthRepository) {}
+
+  async execute(command: RefreshTokenCommand) {
+    const { userId } = command
+
+    const accessSecretKey = process.env.ACCESS_JWT_SECRET_KEY
+    const refreshSecretKey = process.env.REFRESH_JWT_SECRET_KEY
+
+    const payload: { userId: string; date: Date } = {
+      userId,
+      date: new Date(),
+    }
+    const accessToken = jwt.sign(payload, accessSecretKey, { expiresIn: '10m' })
+    const refreshToken = jwt.sign(payload, refreshSecretKey, {
+      expiresIn: '30d',
+    })
+    const expiresIn = addDays(new Date(), 30)
+    await this.authRepository.createRefreshToken(userId, refreshToken, expiresIn)
+    return {
+      accessToken,
+      refreshToken,
+    }
+  }
+}