'use server'

import { RegisterSchema } from '@/schemas'
import { infer as zInfer } from 'zod'
import bcrypt from 'bcryptjs'
import { PASSWORD_SALT_LENGTH } from '@/config/validation'
import db from '@/lib/db'
import { getUserByEmail } from '@/data/user'
import { sendVerificationEmail } from '@/actions/send-verification-email'

export const register = async (values: zInfer<typeof RegisterSchema>) => {
  const validatedFields = RegisterSchema.safeParse(values)

  if (!validatedFields.success) {
    return { error: 'auth.form.error.invalid_fields' }
  }

  const { email, password, name } = validatedFields.data
  const hashedPassword = await bcrypt.hash(password, PASSWORD_SALT_LENGTH)

  const existingUser = await getUserByEmail(email)

  if (existingUser) {
    return { error: 'auth.form.error.email_taken' }
  }

  await db.user.create({
    data: {
      name, email, password: hashedPassword,
    },
  })

  return await sendVerificationEmail(email, name)
}