import { IdentityContext } from '@app/server/identity';
import { prisma } from '@app/server/prisma/client';
import { BookManyOutput, QueryBookManyArgs } from '@generated/types';
import { Prisma } from '@prisma/client';
import { toBookSchema } from './mappers/bookMapper';

export async function BookManyResolver(
  _: any,
  { input }: QueryBookManyArgs,
  { identity }: IdentityContext
): Promise<BookManyOutput> {
  const { filter } = input;
  const terms = filter.terms?.toLowerCase();

  const bookWhere: Prisma.BookWhereInput = {
    OR:
      terms != null ? [{ title: { contains: terms } }, { author: { username: terms } }] : undefined
  };

  const items = await prisma.book.findMany({
    where: bookWhere,
    skip: filter.offset ?? 0,
    take: filter.size ?? 10
  });

  return {
    items: await Promise.all(items.map(value => toBookSchema(value))),
    total: await prisma.book.count({ where: bookWhere })
  };
}