const { PrismaClient } = require('@prisma/client');
const { hash } = require('bcryptjs');

function getInitialStylistFromEnv(env = process.env) {
  return {
    id: BigInt(env.INITIAL_STYLIST_ID || '1'),
    username: env.INITIAL_STYLIST_USERNAME || 'Ogawa',
    email: env.INITIAL_STYLIST_EMAIL || 'stylist@example.com',
    password: env.INITIAL_STYLIST_PASSWORD || 'Passw0rd!',
  };
}

async function seedInitialStylist(prisma, initialStylist, hashPassword) {
  const existing = await prisma.hairstylistUser.findUnique({
    where: { id: initialStylist.id },
  });

  if (existing) {
    return 'existing';
  }

  const password = await hashPassword(initialStylist.password, 10);
  await prisma.hairstylistUser.create({
    data: {
      id: initialStylist.id,
      username: initialStylist.username,
      email: initialStylist.email,
      password,
      isDeleted: 0,
    },
  });
  return 'created';
}

async function seedInitialData(prisma, options = {}) {
  const env = options.env || process.env;
  const hashPassword = options.hashPassword || hash;
  const initialStylist = getInitialStylistFromEnv(env);

  const stylist = await seedInitialStylist(prisma, initialStylist, hashPassword);

  return {
    stylist,
    stylistUsername: initialStylist.username,
    stylistEmail: initialStylist.email,
  };
}

async function main() {
  const prisma = new PrismaClient();

  try {
    const result = await seedInitialData(prisma);
    console.log(
      `Initial account ensured: stylist=${result.stylist}, account=${result.stylistUsername} <${result.stylistEmail}>`,
    );
  } finally {
    await prisma.$disconnect();
  }
}

if (require.main === module) {
  main().catch((error) => {
    console.error(error);
    process.exitCode = 1;
  });
}

module.exports = {
  getInitialStylistFromEnv,
  seedInitialData,
};