feat(server): port resolvers to node server (#2026)

Co-authored-by: Himself65 <himself65@outlook.com>

apps/server/src/modules/auth/resolver.ts

@@ -0,0 +1,54 @@
+import { ForbiddenException } from '@nestjs/common';
+import {
+  Args,
+  Context,
+  Field,
+  Mutation,
+  ObjectType,
+  Parent,
+  ResolveField,
+  Resolver,
+} from '@nestjs/graphql';
+import { Request } from 'express';
+
+import { UserType } from '../users/resolver';
+import { CurrentUser } from './guard';
+import { AuthService } from './service';
+
+@ObjectType()
+export class TokenType {
+  @Field()
+  token!: string;
+
+  @Field()
+  refresh!: string;
+}
+
+@Resolver(() => UserType)
+export class AuthResolver {
+  constructor(private auth: AuthService) {}
+
+  @ResolveField(() => TokenType)
+  token(@CurrentUser() currentUser: UserType, @Parent() user: UserType) {
+    if (user !== currentUser) {
+      throw new ForbiddenException();
+    }
+
+    return {
+      token: this.auth.sign(user),
+      // TODO: impl
+      refresh: '',
+    };
+  }
+
+  @Mutation(() => UserType)
+  async signIn(
+    @Context() ctx: { req: Request },
+    @Args('email') email: string,
+    @Args('password') password: string
+  ) {
+    const user = await this.auth.signIn(email, password);
+    ctx.req.user = user;
+    return user;
+  }
+}