multiple notification strategies

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

@@ -1,14 +1,35 @@
-import { Injectable, Logger } from "@nestjs/common";
+import { Injectable, Logger, NotFoundException } from "@nestjs/common";
+import { EmailNotificationStrategy } from "./strategies/notification.email.strategy";
+import { NotificationStrategy } from "./strategies/notification.strategy";
+import { SmsNotificationStrategy } from "./strategies/notification.sms.strategy";
 
+
+
+type StrategyMethod = "sms" | "email"
 @Injectable()
 export class NotificationsService {
   private readonly logger = new Logger(NotificationsService.name);
+  private readonly strategies: Map<StrategyMethod, NotificationStrategy>
+  constructor(private readonly email: EmailNotificationStrategy, private readonly sms: SmsNotificationStrategy) {
+    this.strategies = new Map([
+      ["sms", this.sms as NotificationStrategy],
+      ["email", this.email as NotificationStrategy]
+    ])
+  }
 
   /**
    * Dispatch a notification to an operator or customer.
    * TODO: wire to email/SMS provider (SendGrid, SMS API, etc.) via a mailer service.
    */
-  async send(recipient: string, subject: string, body: string): Promise<void> {
-    this.logger.log(`[notify] ${recipient} :: ${subject} :: ${body}`);
+
+  async directSend(method: StrategyMethod, recipient: string, message: string) {
+    const strategy = this.strategies.get(method);
+    if (!strategy) {
+      throw new NotFoundException();
+    }
+    const sent = await strategy.send(recipient, message)
+    this.logger.log(`is sent - ${sent}`)
   }
+
+
 }