How to fully set up oauth provider in hono?

.post('/login', zValidator('json', loginSchema), async c => {
    const { username, password } = c.req.valid('json')

    const user = await getUserByUsernameOrEmail(username)

    if (!user) {
      return c.json(
        {
          error: 'Invalid username or password'
        },
        404
      )
    }

    const passwordMatch = await bcrypt.compare(password, user.password)

    if (!passwordMatch) {
      return c.json(
        {
          error: 'Invalid username or password'
        },
        404
      )
    }

    if (!user.emailVerified) {
      const emailVerificationToken = await generateEmailVerificationToken(
        user.email
      )

      await sendEmailVerification({
        email: emailVerificationToken.email,
        token: emailVerificationToken.token
      })

      return c.json(
        {
          success: 'A confirmation email has been sent.'
        },
        201
      )
    }

    const session = await createSession(user.id)

    setCookie(c, SESSION_COOKIE!, session, {
      path: '/',
      httpOnly: true,
      secure: process.env.NODE_ENV === 'production',
      sameSite: 'strict',
      maxAge: 5 * 60
    })

    return c.json(
      {
        success: 'Logged in successfully'
      },
      200
    )
  })