added chapter view, fixes, added ratings, added chapter updates/deletions

app/server/graphql/resolvers/mappers/bookMapper.ts

@@ -1,14 +1,20 @@
 import { assertUnreachable } from '@app/client/helpers';
 import { call } from '@app/common';
+import { ensureRatingType } from '@app/server/helpers';
+import { IdentityContext } from '@app/server/identity';
 import { prisma } from '@app/server/prisma/client';
 import {
   Book as BookSchema,
+  RatingType,
   WorkingProgressStatus as WorkingProgressStatusSchema
 } from '@generated/types';
 import { Book, WorkingProgressStatus } from '@prisma/client';
 import { toUserSchema } from './userMapper';
 
-export async function toBookSchema(model: Book): Promise<BookSchema> {
+export async function toBookSchema(
+  model: Book,
+  { identity }: IdentityContext
+): Promise<BookSchema> {
   return {
     id: model.id,
     title: model.title,
@@ -48,6 +54,20 @@ export async function toBookSchema(model: Book): Promise<BookSchema> {
         }
       });
       return reviewsCount;
+    }),
+    personalRating: await call(async () => {
+      if (identity == null) return RatingType.None;
+      const rating = await prisma.rating.findUnique({
+        where: {
+          userId_bookChapterId: {
+            userId: identity.id,
+            bookChapterId: model.id
+          }
+        }
+      });
+      if (rating == null) return RatingType.None;
+      ensureRatingType(rating.type);
+      return rating.type;
     })
   };
 }