From a7979c22daee6f94b026266f836ad516c7fe4fd6 Mon Sep 17 00:00:00 2001
From: Anand Chowdhary <mail@anandchowdhary.com>
Date: Thu, 22 Oct 2020 23:15:55 +0530
Subject: [PATCH] :sparkles: Add resend email verification endpoint

---
 src/config/configuration.ts         |  1 +
 src/modules/auth/auth.controller.ts | 10 +++++-----
 src/modules/auth/auth.dto.ts        |  6 ++++++
 src/modules/auth/auth.module.ts     |  3 ++-
 src/modules/auth/auth.service.ts    | 27 ++++++++++++++++++++++++++-
 5 files changed, 40 insertions(+), 7 deletions(-)

diff --git a/src/config/configuration.ts b/src/config/configuration.ts
index c6514ac5c..bb441c20e 100644
--- a/src/config/configuration.ts
+++ b/src/config/configuration.ts
@@ -1,4 +1,5 @@
 export default () => ({
+  frontendUrl: process.env.FRONTEND_URL ?? 'http://localhost:3000',
   email: {
     name: process.env.EMAIL_NAME ?? 'Staart',
     from: process.env.EMAIL_FROM,
diff --git a/src/modules/auth/auth.controller.ts b/src/modules/auth/auth.controller.ts
index ae68c11d3..89c59443d 100644
--- a/src/modules/auth/auth.controller.ts
+++ b/src/modules/auth/auth.controller.ts
@@ -2,7 +2,7 @@ import { Body, Controller, Post } from '@nestjs/common';
 import { users } from '@prisma/client';
 import { RateLimit } from 'nestjs-rate-limiter';
 import { OmitSecrets } from 'src/modules/prisma/prisma.interface';
-import { RegisterDto } from './auth.dto';
+import { RegisterDto, ResendEmailVerificationDto } from './auth.dto';
 import { AuthService } from './auth.service';
 
 @Controller('auth')
@@ -21,11 +21,11 @@ export class AuthController {
 
   @Post('resend-email-verification')
   @RateLimit({
-    points: 10,
+    points: 1,
     duration: 60,
-    errorMessage: 'Wait for 60 seconds before trying to create an account',
+    errorMessage: 'Wait for 60 seconds before requesting another email',
   })
-  async resendVerify() {
-    return this.authService.resentEmailVerification();
+  async resendVerify(@Body() data: ResendEmailVerificationDto) {
+    return this.authService.sendEmailVerification(data.email, true);
   }
 }
diff --git a/src/modules/auth/auth.dto.ts b/src/modules/auth/auth.dto.ts
index fae502c79..1b25f4409 100644
--- a/src/modules/auth/auth.dto.ts
+++ b/src/modules/auth/auth.dto.ts
@@ -74,3 +74,9 @@ export class RegisterDto {
   @IsOptional()
   attributes: Record<string, any>;
 }
+
+export class ResendEmailVerificationDto {
+  @IsEmail()
+  @IsNotEmpty()
+  email: string;
+}
diff --git a/src/modules/auth/auth.module.ts b/src/modules/auth/auth.module.ts
index 65fe86d34..280b955a3 100644
--- a/src/modules/auth/auth.module.ts
+++ b/src/modules/auth/auth.module.ts
@@ -1,4 +1,5 @@
 import { Module } from '@nestjs/common';
+import { ConfigModule } from '@nestjs/config';
 import { EmailModule } from '../email/email.module';
 import { PrismaModule } from '../prisma/prisma.module';
 import { UsersService } from '../user/user.service';
@@ -6,7 +7,7 @@ import { AuthController } from './auth.controller';
 import { AuthService } from './auth.service';
 
 @Module({
-  imports: [PrismaModule, EmailModule],
+  imports: [PrismaModule, EmailModule, ConfigModule],
   controllers: [AuthController],
   providers: [AuthService, UsersService],
 })
diff --git a/src/modules/auth/auth.service.ts b/src/modules/auth/auth.service.ts
index 2d3bd4e13..f821480c7 100644
--- a/src/modules/auth/auth.service.ts
+++ b/src/modules/auth/auth.service.ts
@@ -1,4 +1,5 @@
 import { HttpException, HttpStatus, Injectable } from '@nestjs/common';
+import { ConfigService } from '@nestjs/config';
 import { users } from '@prisma/client';
 import { EmailService } from '../email/email.service';
 import { OmitSecrets } from '../prisma/prisma.interface';
@@ -12,6 +13,7 @@ export class AuthService {
     private prisma: PrismaService,
     private users: UsersService,
     private email: EmailService,
+    private configService: ConfigService,
   ) {}
 
   async register(data: RegisterDto): Promise<OmitSecrets<users>> {
@@ -37,10 +39,33 @@ export class AuthService {
         },
       },
     });
+    await this.sendEmailVerification(email);
     return this.prisma.expose(user);
   }
 
-  async resentEmailVerification() {
+  async sendEmailVerification(email: string, resend = false) {
+    const emailSafe = this.users.getSafeEmail(email);
+    const emailDetails = await this.prisma.emails.findFirst({
+      where: { emailSafe },
+      include: { user: true },
+    });
+    if (!emailDetails)
+      throw new HttpException(
+        'There is no user for this email',
+        HttpStatus.NOT_FOUND,
+      );
+    this.email.send({
+      to: `"${emailDetails.user.name}" <${email}>`,
+      template: resend
+        ? 'auth/resend-email-verification'
+        : 'auth/email-verification',
+      data: {
+        name: emailDetails.user.name,
+        link: `${this.configService.get<string>(
+          'frontendUrl',
+        )}/auth/verify-email?token=`,
+      },
+    });
     return { queued: true };
   }
 }