Feat/implement scheduled email reminders

backend/.env.example

@@ -30,3 +30,12 @@ EMAIL_FROM_ADDRESS=noreply@example.com
 APP_PORT=3000
 SERVER_ENVIRONMENT=DEVELOPMENT
 AURORA_WEB_APP_BASE_URL=http://localhost:3000
+
+
+# ========================
+# User Reminder CronJob Settings
+# ========================
+REMINDER_ENABLED=true
+CRON_SCHEDULE="0 2 * * *"
+REMINDER_MAX_RETRIES=2
+REMINDER_RETRY_INTERVAL_HOURS=24

backend/logs/error.log

@@ -1,5 +0,0 @@
-{"level":"error","message":"TypeError: Cannot read properties of undefined (reading 'id')\n    at C:\\projects\\others\\onlyDust\\AURORA\\AURORA-Backend\\backend\\src\\controllers\\question.controller.ts:8:39\n    at Generator.next (<anonymous>)\n    at C:\\projects\\others\\onlyDust\\AURORA\\AURORA-Backend\\backend\\src\\controllers\\question.controller.ts:8:71\n    at new Promise (<anonymous>)\n    at __awaiter (C:\\projects\\others\\onlyDust\\AURORA\\AURORA-Backend\\backend\\src\\controllers\\question.controller.ts:4:12)\n    at C:\\projects\\others\\onlyDust\\AURORA\\AURORA-Backend\\backend\\src\\controllers\\question.controller.ts:7:82\n    at C:\\projects\\others\\onlyDust\\AURORA\\AURORA-Backend\\backend\\src\\middlewares\\async.ts:6:19\n    at Layer.handle [as handle_request] (C:\\projects\\others\\onlyDust\\AURORA\\AURORA-Backend\\backend\\node_modules\\express\\lib\\router\\layer.js:95:5)\n    at next (C:\\projects\\others\\onlyDust\\AURORA\\AURORA-Backend\\backend\\node_modules\\express\\lib\\router\\route.js:149:13)\n    at C:\\projects\\others\\onlyDust\\AURORA\\AURORA-Backend\\backend\\src\\middlewares\\validator.ts:25:12"}
-{"level":"error","message":"TypeError: Cannot read properties of undefined (reading 'id')\n    at C:\\projects\\others\\onlyDust\\AURORA\\AURORA-Backend\\backend\\src\\controllers\\question.controller.ts:8:39\n    at Generator.next (<anonymous>)\n    at C:\\projects\\others\\onlyDust\\AURORA\\AURORA-Backend\\backend\\src\\controllers\\question.controller.ts:8:71\n    at new Promise (<anonymous>)\n    at __awaiter (C:\\projects\\others\\onlyDust\\AURORA\\AURORA-Backend\\backend\\src\\controllers\\question.controller.ts:4:12)\n    at C:\\projects\\others\\onlyDust\\AURORA\\AURORA-Backend\\backend\\src\\controllers\\question.controller.ts:7:82\n    at C:\\projects\\others\\onlyDust\\AURORA\\AURORA-Backend\\backend\\src\\middlewares\\async.ts:6:19\n    at Layer.handle [as handle_request] (C:\\projects\\others\\onlyDust\\AURORA\\AURORA-Backend\\backend\\node_modules\\express\\lib\\router\\layer.js:95:5)\n    at next (C:\\projects\\others\\onlyDust\\AURORA\\AURORA-Backend\\backend\\node_modules\\express\\lib\\router\\route.js:149:13)\n    at C:\\projects\\others\\onlyDust\\AURORA\\AURORA-Backend\\backend\\src\\middlewares\\validator.ts:25:12"}
-{"level":"error","message":"SyntaxError: Unexpected token '`', ...\"entence\": `\"My daugh\"... is not valid JSON\n    at JSON.parse (<anonymous>)\n    at parse (C:\\projects\\others\\onlyDust\\AURORA\\AURORA-Backend\\backend\\node_modules\\body-parser\\lib\\types\\json.js:92:19)\n    at C:\\projects\\others\\onlyDust\\AURORA\\AURORA-Backend\\backend\\node_modules\\body-parser\\lib\\read.js:128:18\n    at AsyncResource.runInAsyncScope (node:async_hooks:214:14)\n    at invokeCallback (C:\\projects\\others\\onlyDust\\AURORA\\AURORA-Backend\\backend\\node_modules\\raw-body\\index.js:238:16)\n    at done (C:\\projects\\others\\onlyDust\\AURORA\\AURORA-Backend\\backend\\node_modules\\raw-body\\index.js:227:7)\n    at IncomingMessage.onEnd (C:\\projects\\others\\onlyDust\\AURORA\\AURORA-Backend\\backend\\node_modules\\raw-body\\index.js:287:7)\n    at IncomingMessage.emit (node:events:518:28)\n    at IncomingMessage.emit (node:domain:489:12)\n    at endReadableNT (node:internal/streams/readable:1698:12)"}
-{"level":"error","message":"SyntaxError: Unexpected token '`', ...\"entence\": `\"My daugh\"... is not valid JSON\n    at JSON.parse (<anonymous>)\n    at parse (C:\\projects\\others\\onlyDust\\AURORA\\AURORA-Backend\\backend\\node_modules\\body-parser\\lib\\types\\json.js:92:19)\n    at C:\\projects\\others\\onlyDust\\AURORA\\AURORA-Backend\\backend\\node_modules\\body-parser\\lib\\read.js:128:18\n    at AsyncResource.runInAsyncScope (node:async_hooks:214:14)\n    at invokeCallback (C:\\projects\\others\\onlyDust\\AURORA\\AURORA-Backend\\backend\\node_modules\\raw-body\\index.js:238:16)\n    at done (C:\\projects\\others\\onlyDust\\AURORA\\AURORA-Backend\\backend\\node_modules\\raw-body\\index.js:227:7)\n    at IncomingMessage.onEnd (C:\\projects\\others\\onlyDust\\AURORA\\AURORA-Backend\\backend\\node_modules\\raw-body\\index.js:287:7)\n    at IncomingMessage.emit (node:events:518:28)\n    at IncomingMessage.emit (node:domain:489:12)\n    at endReadableNT (node:internal/streams/readable:1698:12)"}
-{"level":"error","message":"SyntaxError: Unexpected token '`', ...\"entence\": `\"My daugh\"... is not valid JSON\n    at JSON.parse (<anonymous>)\n    at parse (C:\\projects\\others\\onlyDust\\AURORA\\AURORA-Backend\\backend\\node_modules\\body-parser\\lib\\types\\json.js:92:19)\n    at C:\\projects\\others\\onlyDust\\AURORA\\AURORA-Backend\\backend\\node_modules\\body-parser\\lib\\read.js:128:18\n    at AsyncResource.runInAsyncScope (node:async_hooks:214:14)\n    at invokeCallback (C:\\projects\\others\\onlyDust\\AURORA\\AURORA-Backend\\backend\\node_modules\\raw-body\\index.js:238:16)\n    at done (C:\\projects\\others\\onlyDust\\AURORA\\AURORA-Backend\\backend\\node_modules\\raw-body\\index.js:227:7)\n    at IncomingMessage.onEnd (C:\\projects\\others\\onlyDust\\AURORA\\AURORA-Backend\\backend\\node_modules\\raw-body\\index.js:287:7)\n    at IncomingMessage.emit (node:events:518:28)\n    at IncomingMessage.emit (node:domain:489:12)\n    at endReadableNT (node:internal/streams/readable:1698:12)"}

backend/package.json

@@ -10,7 +10,8 @@
     "start:prod": "node build/src/server.js",
     "build": "rimraf ./build && tsc",
     "start": "npm run build && node build/src/server.js",
-    "import:questions": "ts-node --project tsconfig.json scripts/importQuestions.ts"
+    "import:questions": "ts-node --project tsconfig.json scripts/importQuestions.ts",
+    "seed": "ts-node --project tsconfig.json prisma/seed.ts"
   },
   "keywords": [],
   "author": "",
@@ -19,6 +20,7 @@
   "dependencies": {
     "@stellar/stellar-sdk": "^13.3.0",
     "@types/compression": "^1.7.5",
+    "@types/node-cron": "^3.0.11",
     "axios": "^1.7.7",
     "bcrypt": "^6.0.0",
     "compression": "^1.8.0",
@@ -35,6 +37,7 @@
     "joi": "^17.13.3",
     "jsonwebtoken": "^9.0.2",
     "morgan": "^1.10.0",
+    "node-cron": "^4.2.1",
     "nodemailer": "^6.10.0",
     "pg": "^8.14.1",
     "rimraf": "^6.0.1",
@@ -71,4 +74,4 @@
     "ts-node": "^10.9.2",
     "typescript": "^5.8.3"
   }
-}
+}

backend/prisma/schema.prisma

@@ -9,19 +9,22 @@ datasource db {
 }
 
 model User {
-  id              String     @id @default(uuid())
-  email           String     @unique
-  password        String
-  isEmailVerified Boolean    @default(false)
-  firstName       String?
-  lastName        String?
-  phoneNumber     String?
-  profileImage    String?
-  status          Status     @default(INACTIVE)
-  createdAt       DateTime   @default(now())
-  updatedAt       DateTime   @updatedAt
-  wallet          Wallet?
-  questions       Question[]
+  id             String    @id @default(uuid())
+  email          String    @unique
+  password       String
+  isEmailVerified  Boolean @default(false)
+  firstName      String?
+  lastName       String?
+  phoneNumber    String?
+  profileImage   String?
+  status        Status     @default(INACTIVE)
+  lastLoginAt    DateTime?
+  lastActivityAt DateTime?
+  lastReminderSent DateTime?
+  createdAt      DateTime  @default(now())
+  updatedAt      DateTime  @updatedAt
+  wallet         Wallet?
+  questions      Question[]
 }
 
 model Wallet {

backend/src/controllers/auth.controller.ts

@@ -88,6 +88,12 @@ export const login = asyncHandler(async (req: Request, res: Response) => {
   const isPasswordValid = await Bcrypt.compare(password, user.password)
   if (!isPasswordValid) throw new BadRequestError("Invalid credentials")
 
+  try {
+    await UserService.updateLastLogin(user.id)
+  } catch (err) {
+    console.error(`Couldn't update last login:`, err)
+  }
+
   const token = Jwt.issue({ id: user.id }, "1d")
 
   const userResponse = {

backend/src/core/config/settings.ts

@@ -22,6 +22,18 @@ const envVarsSchema = Joi.object()
     AURORA_WEB_APP_BASE_URL: Joi.string()
       .required()
       .description("Base URL for Aurora Web App"),
+    REMINDER_ENABLED: Joi.boolean()
+      .default(true)
+      .description("Enable reminder emails"),
+    CRON_SCHEDULE: Joi.string()
+      .default("0 2 * * *")
+      .description("CRON schedule for reminder job"),
+    REMINDER_MAX_RETRIES: Joi.number()
+      .default(2)
+      .description("Maximum retries for failed email reminders"),
+    REMINDER_RETRY_INTERVAL_HOURS: Joi.number()
+      .default(24)
+      .description("Hours between email retry attempts"),
   })
   .unknown();
 
@@ -44,6 +56,12 @@ const serverSettings = {
     password: envVars.EMAIL_PASSWORD,
     fromAddress: envVars.EMAIL_FROM_ADDRESS,
   },
+  reminders: {
+    enabled: envVars.REMINDER_ENABLED,
+    cronSchedule: envVars.CRON_SCHEDULE,
+    maxRetries: envVars.REMINDER_MAX_RETRIES,
+    retryIntervalHours: envVars.REMINDER_RETRY_INTERVAL_HOURS,
+  },
 };
 
 export default serverSettings;

backend/src/jobs/userReminder.job.ts

@@ -0,0 +1,154 @@
+import NotificationService from "../services/notification.service";
+import EmailNotifier from "../utils/service/emailNotifier";
+import UserService from "../services/user.service";
+
+interface JobResult {
+  success: boolean;
+  stats: {
+    candidatesFound: number;
+    emailsSent: number;
+    emailsFailed: number;
+  };
+  errors: Array<{ email: string; error: string }>;
+  executionTime: number;
+}
+
+class UserReminderJob {
+  /**
+   * Main job function to check inactive users and send reminders
+   */
+  public static async checkInactiveUsers(maxRetries: number = 2): Promise<JobResult> {
+    const startTime = Date.now();
+    console.log("🔄 Starting user reminder job...");
+
+    try {
+      // Get reminder statistics for logging
+      const stats = await NotificationService.getReminderStats();
+      console.log("📊 Reminder Stats:", {
+        totalInactive: stats.totalInactive,
+        candidatesFound: stats.candidatesFound,
+        breakdown: stats.breakdown,
+      });
+
+      // Find users who need reminders
+      const candidates = await NotificationService.findReminderCandidates();
+
+      if (candidates.length === 0) {
+        console.log("✅ No users found requiring reminders");
+        return {
+          success: true,
+          stats: {
+            candidatesFound: 0,
+            emailsSent: 0,
+            emailsFailed: 0,
+          },
+          errors: [],
+          executionTime: Date.now() - startTime,
+        };
+      }
+
+      console.log(`📧 Sending reminders to ${candidates.length} users`);
+
+      // Prepare email data
+      const reminderEmails = candidates.map(candidate => ({
+        email: candidate.email,
+        firstName: candidate.firstName || undefined,
+        reminderType: candidate.reminderType,
+        daysSinceActivity: candidate.daysSinceActivity,
+      }));
+
+      // Send emails with retry logic
+      const emailResults = await EmailNotifier.sendReminderEmails(reminderEmails, maxRetries);
+
+      // Update lastReminderSent for successfully sent emails
+      const successfulEmails = emailResults.successfulEmails || [];
+      const userIdsToUpdate = successfulEmails
+        .map(email => candidates.find(c => c.email === email)?.id)
+        .filter(id => id !== undefined) as string[];
+
+      if (userIdsToUpdate.length > 0) {
+        await this.updateReminderSentTimestamps(userIdsToUpdate);
+      }
+
+      const executionTime = Date.now() - startTime;
+
+      console.log("✅ User reminder job completed:", {
+        candidatesFound: candidates.length,
+        emailsSent: emailResults.success,
+        emailsFailed: emailResults.failed,
+        executionTimeMs: executionTime,
+      });
+
+      return {
+        success: true,
+        stats: {
+          candidatesFound: candidates.length,
+          emailsSent: emailResults.success,
+          emailsFailed: emailResults.failed,
+        },
+        errors: emailResults.errors,
+        executionTime,
+      };
+
+    } catch (error) {
+      const executionTime = Date.now() - startTime;
+      console.error("❌ User reminder job failed:", error);
+
+      return {
+        success: false,
+        stats: {
+          candidatesFound: 0,
+          emailsSent: 0,
+          emailsFailed: 0,
+        },
+        errors: [{ email: "system", error: error instanceof Error ? error.message : "Unknown error" }],
+        executionTime,
+      };
+    }
+  }
+
+  /**
+   * Update lastReminderSent timestamp for users who received reminders
+   */
+  private static async updateReminderSentTimestamps(userIds: string[]): Promise<void> {
+    try {
+      await UserService.updateReminderSentBatch(userIds);
+      console.log(`✅ Updated reminder timestamps for ${userIds.length} users`);
+    } catch (error) {
+      console.error("❌ Failed to update reminder timestamps:", error);
+    }
+  }
+
+  /**
+   * Manual trigger for testing purposes
+   */
+  public static async triggerManual(): Promise<JobResult> {
+    console.log("🔧 Manual trigger of user reminder job");
+    return this.checkInactiveUsers();
+  }
+
+  /**
+   * Get job health status
+   */
+  public static async getHealthStatus(): Promise<{
+    isHealthy: boolean;
+    lastRun?: Date;
+    nextRun?: string;
+  }> {
+    try {
+      await NotificationService.getReminderStats();
+
+      return {
+        isHealthy: true,
+        lastRun: new Date(),
+        nextRun: "Based on CRON schedule",
+      };
+    } catch (error) {
+      return {
+        isHealthy: false,
+      };
+    }
+  }
+}
+
+export default UserReminderJob; 

backend/src/middlewares/authentication.ts

@@ -26,6 +26,9 @@ export const isAuthorized = () => {
       const user = await UserService.readUserById(decoded.payload.id)
       if (!user) return next(new UnauthorizedError("Unauthorized - User not found"))
 
+      // Track user activity
+      await UserService.updateLastActivity(user.id);
+
       req.user = user
       res.locals.account = user
       next()

backend/src/server.ts

@@ -3,14 +3,49 @@ import path from "path";
 import app from "./app";
 import settings from "./core/config/settings";
 import { connectDB } from "./db";
+import JobSchedulerService from "./services/jobScheduler.service";
 
 dotenv.config();
 
 const server = app;
 const port = settings.serverPort || 8000;
 
+// Connect to database
 connectDB();
 
+// Initialize scheduled jobs
+try {
+  JobSchedulerService.initializeJobs();
+  console.log("✅ Scheduled jobs initialized successfully");
+} catch (error) {
+  console.error("❌ Failed to initialize scheduled jobs:", error);
+}
+
+// Graceful shutdown
+const gracefulShutdown = async (signal: string) => {
+  console.log(`${signal} received, shutting down gracefully`);
+
+  // Set a timeout for forced shutdown
+  const forceShutdown = setTimeout(() => {
+    console.log("Force shutdown after timeout");
+    process.exit(1);
+  }, 10000);
+
+  try {
+    await JobSchedulerService.shutdown();
+    console.log("Jobs shut down successfully");
+    clearTimeout(forceShutdown);
+    process.exit(0);
+  } catch (error) {
+    console.error("Error during shutdown:", error);
+    clearTimeout(forceShutdown);
+    process.exit(1);
+  }
+};
+
+process.on('SIGTERM', () => gracefulShutdown('SIGTERM'));
+process.on('SIGINT', () => gracefulShutdown('SIGINT'));
+
 server.listen(port, () => {
   console.log(`🚀🚀🚀 Aurora's server is running at http://localhost:${port} 🚀🚀🚀`);
 });