feat(ADM-018): completed feature

project/src/modules/notifications/infrastructure/pg-notifications-repository.ts

@@ -0,0 +1,38 @@
+import type pg from 'pg';
+import type { NotificationsRepository } from '../domain/ports.js';
+import type { EmailMessage } from '../domain/notification.js';
+
+interface MessageRow {
+  event_id: string;
+  template: string;
+  recipient: string;
+  status: string;
+}
+
+export class PgNotificationsRepository implements NotificationsRepository {
+  constructor(private readonly pool: pg.Pool) {}
+
+  async findByEventId(
+    eventId: string,
+  ): Promise<{ template: string; recipient: string; status: string } | undefined> {
+    const result = await this.pool.query<MessageRow>(
+      'SELECT event_id, template, recipient, status FROM notifications_messages WHERE event_id = $1',
+      [eventId],
+    );
+    const row = result.rows[0];
+    return row
+      ? { template: row.template, recipient: row.recipient, status: row.status }
+      : undefined;
+  }
+
+  async record(message: EmailMessage): Promise<{ created: boolean }> {
+    const result = await this.pool.query(
+      `INSERT INTO notifications_messages (event_id, template, recipient, subject, body)
+       VALUES ($1, $2, $3, $4, $5)
+       ON CONFLICT (event_id) DO NOTHING
+       RETURNING id`,
+      [message.eventId, message.template, message.recipient, message.subject, message.body],
+    );
+    return { created: (result.rowCount ?? 0) > 0 };
+  }
+}