import { IdentityContext } from '@app/server/identity';
import { prisma } from '@app/server/prisma/client';
import { BookChapterManyOutput, QueryBookChapterManyArgs } from '@generated/types';
import { Prisma } from '@prisma/client';
import { toBookChapterSchema } from './mappers/bookChapterMapper';

export async function BookChapterManyResolver(
  _: any,
  { input }: QueryBookChapterManyArgs,
  { identity }: IdentityContext
): Promise<BookChapterManyOutput> {
  const { bookId, filter } = input;
  const terms = filter.terms?.toLowerCase();

  const bookChapterWhere: Prisma.BookChapterWhereInput = {
    AND: [{ bookId }, { OR: terms != null ? [{ title: { contains: terms } }] : undefined }]
  };

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

  return {
    items: await Promise.all(items.map(value => toBookChapterSchema(value))),
    total: items.length
  };
}