added book details, update, delete. fixes

app/server/graphql/graphql.ts

@@ -14,6 +14,8 @@ import { UserOneResolver } from './resolvers/userOneResolver';
 import { LoginResolver } from './resolvers/auth/login';
 import { LogoutResolver } from './resolvers/auth/logout';
 import { SignUpResolver } from './resolvers/auth/signUp';
+import { BookUpdateResolver } from './resolvers/bookUpdateResolver';
+import { BookDeleteResolver } from './resolvers/bookDeleteResolver';
 import { BookChapterCreateResolver } from './resolvers/bookChapterCreateResolver';
 import { BookChapterDeleteResolver } from './resolvers/bookChapterDelete';
 import { BookChapterUpdateResolver } from './resolvers/bookChapterUpdateResolver';
@@ -36,6 +38,8 @@ export const Mutation: MutationResolvers = {
   login: LoginResolver,
   logout: LogoutResolver,
   bookCreate: BookCreateResolver,
+  bookUpdate: BookUpdateResolver,
+  bookDelete: BookDeleteResolver,
   bookChapterCreate: BookChapterCreateResolver,
   bookChapterDelete: BookChapterDeleteResolver,
   bookChapterUpdate: BookChapterUpdateResolver,

app/server/graphql/resolvers/bookDeleteResolver.ts

@@ -0,0 +1,22 @@
+import { ensureIdentity } from '@app/server/helpers';
+import { IdentityContext } from '@app/server/identity';
+import { prisma } from '@app/server/prisma/client';
+import { MutationBookDeleteArgs } from '@generated/types';
+
+export async function BookDeleteResolver(
+  _: any,
+  { id }: MutationBookDeleteArgs,
+  { identity }: IdentityContext
+): Promise<void> {
+  ensureIdentity(identity);
+
+  const model = await prisma.book.findUniqueOrThrow({
+    where: { id }
+  });
+
+  if (identity.id !== model.authorId) throw new Error('Operation is not permitted.');
+
+  await prisma.book.delete({
+    where: { id }
+  });
+}

app/server/graphql/resolvers/bookUpdateResolver.ts

@@ -0,0 +1,34 @@
+import { ensureIdentity } from '@app/server/helpers';
+import { IdentityContext } from '@app/server/identity';
+import { prisma } from '@app/server/prisma/client';
+import { Book, MutationBookUpdateArgs } from '@generated/types';
+import { toBookSchema } from './mappers/bookMapper';
+
+export async function BookUpdateResolver(
+  _: any,
+  { input }: MutationBookUpdateArgs,
+  { req, res, identity }: IdentityContext
+): Promise<Book> {
+  ensureIdentity(identity);
+
+  const model = await prisma.book.findUniqueOrThrow({
+    where: { id: input.id }
+  });
+
+  if (identity.id !== model.authorId) throw new Error('Operation is not permitted.');
+
+  if (input.title != null && input.title.length > 60) throw new Error('Title is too long.');
+  if (input.description != null && input.description.length > 900)
+    throw new Error('Description is too long.');
+
+  const modelUpdated = await prisma.book.update({
+    where: { id: input.id },
+    data: {
+      title: input.title != null ? input.title : undefined,
+      description: input.description != null ? input.description : undefined,
+      progressStatus: input.progressStatus != null ? input.progressStatus : undefined
+    }
+  });
+
+  return toBookSchema(modelUpdated, { req, res, identity });
+}

app/server/graphql/schema.graphql

@@ -16,6 +16,8 @@ type Mutation {
   login(input: LoginInput!): Session!
   logout: Void
   bookCreate(input: BookCreateInput!): Book!
+  bookUpdate(input: BookUpdateInput!): Book!
+  bookDelete(id: ID!): Void
   bookChapterCreate(input: BookChapterCreateInput!): BookChapter!
   bookChapterUpdate(input: BookChapterUpdateInput!): BookChapter!
   bookChapterDelete(id: ID!): Book!
@@ -97,7 +99,7 @@ type Book {
   personalRating: RatingType!
 }
 
-input BookUpdate {
+input BookUpdateInput {
   id: ID!
   title: String
   description: String