feat: add email to notification and otp

apps/edr-freight-api/src/modules/notifications/email-client.service.ts

@@ -0,0 +1,51 @@
+import {
+  Inject,
+  Injectable,
+  Logger,
+  OnApplicationBootstrap,
+} from "@nestjs/common";
+import { ClientProxy } from "@nestjs/microservices";
+import { SendEmailDto } from "./dtos/email.dto";
+
+@Injectable()
+export class EmailClientService implements OnApplicationBootstrap {
+  private readonly logger = new Logger(EmailClientService.name);
+
+  constructor(
+    @Inject("EMAIL_SERVICE")
+    private readonly emailClient: ClientProxy,
+  ) {}
+
+  private readonly enabled = process.env.RABBITMQ_ENABLED !== "false";
+
+  async onApplicationBootstrap() {
+    if (!this.enabled) return;
+    this.emailClient
+      .connect()
+      .then(() => this.logger.log("connected to Email service"))
+      .catch((err) => {
+        console.error("Error happened at Email service", err);
+      });
+  }
+
+  async sendEmail(dto: SendEmailDto): Promise<{ queued: boolean }> {
+    if (!this.enabled) {
+      this.logger.warn(`RABBITMQ disabled — skipped EMAIL to=${dto.to}`);
+      return { queued: false };
+    }
+    this.emailClient.emit("send-email", {
+      to: dto.to,
+      subject: dto.subject,
+      text: dto.text,
+      html: dto.html,
+      appKey: "IFHCRS-LICENSE-MANAGEMENT",
+    });
+    // Fire-and-forget enqueue: confirms hand-off to RabbitMQ, NOT delivery.
+    this.logger.log(
+      `EMAIL queued to RabbitMQ [${process.env.EMAIL_QUEUE ?? "email_queue"}] pattern='send-email'`,
+    );
+    // Recipient + content are PII — debug only.
+    this.logger.debug(`EMAIL payload to=${dto.to} subject="${dto.subject}"`);
+    return { queued: true };
+  }
+}