import { IdentityContext } from '@app/server/identity';
import { prisma, uuid } from '@app/server/prisma/client';
import { MutationSignUpArgs } from '@generated/types';
import bcrypt from 'bcrypt';

export async function SignUpResolver(
  _: any,
  { input }: MutationSignUpArgs,
  { identity }: IdentityContext
): Promise<void> {
  const existingUsername = await prisma.user.findUnique({
    where: { username: input.username },
    select: { id: true }
  });
  if (existingUsername != null) throw new Error('User with this username already exists.');

  const existingEmail = await prisma.user.findUnique({
    where: { email: input.email },
    select: { id: true }
  });
  if (existingEmail != null) throw new Error('Email is already in use.');

  const hashedPassword = await bcrypt.hash(input.password, 10);

  await prisma.user.create({
    data: {
      id: uuid(),
      email: input.email,
      username: input.username,
      password: hashedPassword
    }
  });
}