implemented ratings, fixes

app/server/graphql/resolvers/reviewManyResolver.ts

@@ -0,0 +1,26 @@
+import { IdentityContext } from '@app/server/identity';
+import { prisma } from '@app/server/prisma/client';
+import { QueryReviewManyArgs, ReviewManyOutput } from '@generated/types';
+import { toReviewSchema } from './mappers/reviewMapper';
+
+export async function ReviewManyResolver(
+  _: any,
+  { input }: QueryReviewManyArgs,
+  { req, res, identity }: IdentityContext
+): Promise<ReviewManyOutput> {
+  const { bookId, filter } = input;
+
+  const items = await prisma.review.findMany({
+    where: { bookId },
+    skip: filter.offset ?? 0,
+    take: filter.size ?? 10,
+    orderBy: {
+      createdAt: 'desc'
+    }
+  });
+
+  return {
+    items: await Promise.all(items.map(value => toReviewSchema(value))),
+    total: await prisma.review.count({ where: { bookId } })
+  };
+}