chore: manually committing auth module to remoter

packages/hoppscotch-backend/src/auth/auth.service.ts

@@ -0,0 +1,68 @@
+import { HttpException, HttpStatus, Injectable } from '@nestjs/common';
+import { MailerService } from 'src/mailer/mailer.service';
+import { PrismaService } from 'src/prisma/prisma.service';
+import { User } from 'src/user/user.model';
+import { UserService } from 'src/user/user.service';
+import { verifyMagicDto } from './dto/verify-magic.dto';
+import { DateTime } from 'luxon';
+import * as argon2 from 'argon2';
+import bcrypt from 'bcrypt';
+import * as O from 'fp-ts/Option';
+import * as E from 'fp-ts/Either';
+import * as TE from 'fp-ts/TaskEither';
+import { PasswordlessToken } from 'src/types/Passwordless';
+import { EmailCodec } from 'src/types/Email';
+import { INVALID_EMAIL } from 'src/errors';
+import { pipe } from 'fp-ts/lib/function';
+import { validateEmail } from 'src/utils';
+
+@Injectable()
+export class AuthService {
+  constructor(
+    private usersService: UserService,
+    private prismaService: PrismaService,
+    private readonly mailerService: MailerService,
+  ) {}
+
+  // generate Id and token for email magiclink
+  private async generatePasswordlessTokens(user: User) {
+    const salt = await bcrypt.genSalt(10);
+    const expiresOn = DateTime.now().plus({ hours: 3 }).toISO().toString();
+
+    const idToken: PasswordlessToken =
+      await this.prismaService.passwordlessVerification.create({
+        data: {
+          expiresOn: expiresOn,
+          deviceIdentifier: salt,
+          userUid: user.id,
+        },
+      });
+
+    return idToken;
+  }
+
+  async signIn(email: string) {
+    if (!validateEmail(email)) return E.left(INVALID_EMAIL);
+
+    let user: User;
+    const queriedUser = await this.usersService.findUserByEmail(email);
+
+    if (O.isNone(queriedUser)) {
+      user = await this.usersService.createUser(email);
+    } else {
+      user = queriedUser.value;
+    }
+
+    const generatedTokens = await this.generatePasswordlessTokens(user);
+
+    this.mailerService.sendMail(email, {
+      template: 'code-your-own',
+      variables: {
+        inviteeEmail: email,
+        magicLink: `${process.env.APP_DOMAIN}/magic-link?token=${generatedTokens.token}`,
+      },
+    });
+
+    return { deviceIdentifier: generatedTokens.deviceIdentifier };
+  }
+}