Migrated to typescript

app/(api)/_datalib/_resolvers/Playlist.ts

@@ -0,0 +1,23 @@
+import Playlists from '../_services/Playlists';
+import Users from '../_services/Users';
+import { Playlist, PlaylistInput } from '@datatypes/Playlist';
+
+const resolvers = {
+  Playlist: {
+    user: (parent: Playlist) => Users.find(parent.userId),
+    songs: (parent: Playlist) => Playlists.getSongs(parent.id),
+  },
+  Query: {
+    playlist: (_: never, args: { id: string }) => Playlists.find(args.id),
+    playlists: () => Playlists.findAll(),
+  },
+  Mutation: {
+    createPlaylist: (
+      _: never,
+      args: { userId: string; input: PlaylistInput }
+    ) => Playlists.create(args.userId, args.input),
+    addSong: (_: never, args: { playlistId: string; songId: string }) =>
+      Playlists.addSong(args.playlistId, args.songId),
+  },
+};
+export default resolvers;

app/(api)/_datalib/_resolvers/Song.ts

@@ -0,0 +1,17 @@
+import Songs from '../_services/Songs';
+import { SongInput } from '@datatypes/Song';
+
+const resolvers = {
+  Song: {
+    playlists: () => null,
+  },
+  Query: {
+    song: (_: never, args: { id: string }) => Songs.find(args.id),
+    songs: () => Songs.findAll(),
+  },
+  Mutation: {
+    createSong: (_: never, args: { input: SongInput }) =>
+      Songs.create(args.input),
+  },
+};
+export default resolvers;

app/(api)/_datalib/_resolvers/User.ts

@@ -0,0 +1,21 @@
+import Users from '../_services/Users';
+import { User, UserInput } from '@datatypes/User';
+
+const resolvers = {
+  User: {
+    playlists: (parent: User) => Users.getPlaylists(parent.id),
+  },
+  Query: {
+    user: (_: never, args: { id: string }) => Users.find(args.id),
+    users: (_: never, args: { ids: string[] }) => Users.findMany(args.ids),
+  },
+  Mutation: {
+    createUser: (_: never, args: { input: UserInput }) =>
+      Users.create(args.input),
+    updateUser: (_: never, args: { id: string; input: UserInput }) =>
+      Users.update(args.id, args.input),
+    deleteUser: (_: never, args: { id: string }) => Users.delete(args.id),
+  },
+};
+
+export default resolvers;

app/(api)/_datalib/_resolvers/index.js → app/(api)/_datalib/_resolvers/index.ts

@@ -1,10 +1,11 @@
 import { mergeResolvers } from '@graphql-tools/merge';
+import type { IResolvers } from '@graphql-tools/utils';
 
-import User from './User.js';
-import Playlist from './Playlist.js';
-import Song from './Song.js';
+import User from './User';
+import Playlist from './Playlist';
+import Song from './Song';
 
-const allResolvers = [];
+const allResolvers: IResolvers[] = [];
 
 const modules = [User, Playlist, Song];
 modules.forEach((module) => {

app/(api)/_datalib/_services/Playlists.js → app/(api)/_datalib/_services/Playlists.ts

@@ -1,8 +1,9 @@
-import prisma from '../_prisma/client.js';
+import prisma from '../_prisma/client';
+import { PlaylistInput } from '@datatypes/Playlist';
 
 export default class Playlists {
   // CREATE
-  static async create({ userId, input }) {
+  static async create(userId: string, input: PlaylistInput) {
     const { name } = input;
     const playlist = await prisma.playlist.create({
       data: {
@@ -14,7 +15,7 @@ export default class Playlists {
   }
 
   // READ
-  static async find({ id }) {
+  static async find(id: string) {
     return prisma.playlist.findUnique({ where: { id } });
   }
 
@@ -23,7 +24,7 @@ export default class Playlists {
   }
 
   // OTHER
-  static async addSong({ playlistId, songId }) {
+  static async addSong(playlistId: string, songId: string) {
     try {
       await prisma.playlistToSong.create({
         data: {
@@ -37,7 +38,7 @@ export default class Playlists {
     }
   }
 
-  static async getSongs({ id }) {
+  static async getSongs(id: string) {
     const songIds = await prisma.playlistToSong.findMany({
       where: {
         playlistId: id,

app/(api)/_datalib/_services/Songs.js → app/(api)/_datalib/_services/Songs.ts

@@ -1,8 +1,9 @@
-import prisma from '../_prisma/client.js';
+import prisma from '../_prisma/client';
+import { SongInput } from '@datatypes/Song';
 
 export default class Songs {
   // CREATE
-  static async create({ input }) {
+  static async create(input: SongInput) {
     const { name } = input;
     const song = await prisma.song.create({
       data: {
@@ -13,7 +14,7 @@ export default class Songs {
   }
 
   // READ
-  static async find({ id }) {
+  static async find(id: string) {
     return prisma.song.findUnique({ where: { id } });
   }
 

app/(api)/_datalib/_services/Users.js → app/(api)/_datalib/_services/Users.ts

@@ -1,8 +1,9 @@
-import prisma from '../_prisma/client.js';
+import { UserInput } from '@datatypes/User';
+import prisma from '../_prisma/client';
 
 export default class Users {
   // CREATE
-  static async create({ input }) {
+  static async create(input: UserInput) {
     const { name } = input;
     const user = await prisma.user.create({
       data: {
@@ -13,15 +14,16 @@ export default class Users {
   }
 
   // READ
-  static async find({ id }) {
+  static async find(id: string) {
     return prisma.user.findUnique({
       where: {
         id,
       },
     });
   }
 
-  static async findMany({ ids }) {
+  static async findMany(ids: string[]) {
+    if (ids.length === 0) return prisma.user.findMany();
     return prisma.user.findMany({
       where: {
         id: {
@@ -32,7 +34,7 @@ export default class Users {
   }
 
   // UDPATE
-  static async update({ id, input }) {
+  static async update(id: string, input: UserInput) {
     try {
       const user = await prisma.user.update({
         where: {
@@ -47,7 +49,7 @@ export default class Users {
   }
 
   // DELETE
-  static async delete({ id }) {
+  static async delete(id: string) {
     try {
       await prisma.user.delete({
         where: {
@@ -61,10 +63,10 @@ export default class Users {
   }
 
   // OTHER
-  static async getPlaylists({ id }) {
+  static async getPlaylists(userId: string) {
     return prisma.playlist.findMany({
       where: {
-        userId: id,
+        userId,
       },
     });
   }

app/(api)/_datalib/_typeDefs/index.js → app/(api)/_datalib/_typeDefs/index.ts

@@ -1,10 +1,11 @@
 import { mergeTypeDefs } from '@graphql-tools/merge';
+import type { DocumentNode } from 'graphql';
 
-import User from './User.js';
-import Playlist from './Playlist.js';
-import Song from './Song.js';
+import User from './User';
+import Playlist from './Playlist';
+import Song from './Song';
 
-const allTypeDefs = [];
+const allTypeDefs: DocumentNode[] = [];
 
 const modules = [User, Playlist, Song];
 modules.forEach((module) => {

app/(api)/_types/Playlist.ts

@@ -0,0 +1,15 @@
+import { User } from '@datatypes/User';
+import { Song } from '@datatypes/Song';
+
+export type Playlist = {
+  id: string;
+  name: string;
+  user: User;
+  userId: string;
+  songs: Song[];
+};
+
+export type PlaylistInput = {
+  name: string;
+  userId: string;
+};

app/(api)/_types/Song.ts

@@ -0,0 +1,11 @@
+import { Playlist } from '@datatypes/Playlist';
+
+export type Song = {
+  id: string;
+  name: string;
+  playlists: Playlist[];
+};
+
+export type SongInput = {
+  name: string;
+};

app/(api)/_types/User.ts

@@ -0,0 +1,11 @@
+import { Playlist } from '@datatypes/Playlist';
+
+export type User = {
+  id: string;
+  name: string;
+  playlists: Playlist[];
+};
+
+export type UserInput = {
+  name: string;
+};

tsconfig.json

@@ -28,6 +28,7 @@
     "@utils/*": ["./app/(pages)/_utils/*"],   
     "@actions/*": ["./app/(api)/_actions/*"],
     "@datalib/*": ["./app/(api)/_datalib/*"],
+    "@datatypes/*": ["./app/(api)/_types/*"],
     }
   },
   "include": ["nextEnv.d.ts", "**/*.ts", "**/*.tsx", ".next/types/**/*.ts"],