fix: Move mail to src/

src/app.module.ts

@@ -14,7 +14,8 @@ import { OrganizationModule } from './organization/organization.module';
 import { OrganizationMembershipModule } from './organization-membership/organization-membership.module';
 import { AuthorizationModule } from './authorization/authorization.module';
 import { CacheModule } from './cache/cache.module';
-import { MailModule } from 'core/mail/mail.module';
+import { EventEmitterModule } from '@nestjs/event-emitter';
+import { MailModule } from './mail/mail.module';
 
 @Module({
   imports: [
@@ -29,7 +30,8 @@ import { MailModule } from 'core/mail/mail.module';
     OrganizationMembershipModule,
     AuthorizationModule,
     CacheModule,
-    MailModule
+    MailModule,
+    EventEmitterModule.forRoot()
   ],
   controllers: [AppController],
   providers: [

src/auth/auth.module.ts

@@ -6,7 +6,7 @@ import { AuthGuard } from './guards/auth.guard';
 import { UserModule } from 'src/user/user.module';
 import { JwtModule } from '@nestjs/jwt';
 import { RequestContextModule } from 'core/als/request-context.module';
-import { MailModule } from 'core/mail/mail.module';
+import { MailModule } from 'src/mail/mail.module';
 
 @Global()
 @Module({

src/auth/auth.service.ts

@@ -5,8 +5,8 @@ import * as bcrypt from 'bcrypt';
 import { UserService } from 'src/user/user.service';
 import { TokenInputType } from './types';
 import { JwtService } from '@nestjs/jwt';
-import { MailService } from 'core/mail/mail.service';
 import EmailTemplates from 'common/emails';
+import { MailService } from 'src/mail/mail.service';
 
 @Injectable()
 @Public()

src/mail/mail.module.ts

@@ -0,0 +1,8 @@
+import { Module } from '@nestjs/common';
+import { MailService } from './mail.service';
+
+@Module({
+  providers: [MailService],
+  exports: [MailService]
+})
+export class MailModule { }

src/mail/mail.service.spec.ts

@@ -0,0 +1,18 @@
+import { Test, TestingModule } from '@nestjs/testing';
+import { MailService } from './mail.service';
+
+describe('MailService', () => {
+  let service: MailService;
+
+  beforeEach(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      providers: [MailService],
+    }).compile();
+
+    service = module.get<MailService>(MailService);
+  });
+
+  it('should be defined', () => {
+    expect(service).toBeDefined();
+  });
+});

src/mail/mail.service.ts

@@ -0,0 +1,45 @@
+import { Injectable } from '@nestjs/common';
+import { ConfigService } from "@nestjs/config";
+import * as nodemailer from "nodemailer";
+
+@Injectable()
+export class MailService {
+  private transporter: nodemailer.Transporter;
+  private mailServiceAvailable = false;
+
+  constructor(private readonly configService: ConfigService) {
+    const mailId = this.configService.get<string | undefined>("MAIL_ID");
+    const mailPass = this.configService.get<string | undefined>("MAIL_PASS");
+
+    if (!mailId || !mailPass)
+      throw new Error("Make sure MAIL_ID and MAIL_PASS environment variables are set")
+
+    // Use secure in prod
+    // TODO: A table for failed emails to retry later(actually bullmq)
+    this.transporter = nodemailer.createTransport({
+      host: "smtp.gmail.com",
+      port: 587,
+      secure: false, // Use true for port 465, false for port 587
+      auth: {
+        user: mailId,
+        pass: mailPass,
+      },
+      from: mailId
+    });
+
+    this.mailServiceAvailable = true;
+  }
+
+  sendMail({ to, subject, body }: { to: string, subject: string, body: string }) {
+    if (!this.mailServiceAvailable)
+      throw new Error("Mail service not available")
+
+    this.transporter.sendMail(
+      {
+        to,
+        subject,
+        html: body
+      }
+    )
+  }
+}