backend/src/features/admin/api/users.controller.ts

@@ -7,6 +7,9 @@ import { FastifyRequest, FastifyReply } from 'fastify';
 import { UserProfileService } from '../../user-profile/domain/user-profile.service';
 import { UserProfileRepository } from '../../user-profile/data/user-profile.repository';
 import { AdminRepository } from '../data/admin.repository';
+import { SubscriptionsService } from '../../subscriptions/domain/subscriptions.service';
+import { SubscriptionsRepository } from '../../subscriptions/data/subscriptions.repository';
+import { StripeClient } from '../../subscriptions/external/stripe/stripe.client';
 import { pool } from '../../../core/config/database';
 import { logger } from '../../../core/logging/logger';
 import {
@@ -28,15 +31,22 @@ import { AdminService } from '../domain/admin.service';
 export class UsersController {
   private userProfileService: UserProfileService;
   private adminService: AdminService;
+  private subscriptionsService: SubscriptionsService;
   private userProfileRepository: UserProfileRepository;
+  private adminRepository: AdminRepository;
 
   constructor() {
     this.userProfileRepository = new UserProfileRepository(pool);
-    const adminRepository = new AdminRepository(pool);
+    this.adminRepository = new AdminRepository(pool);
+    const subscriptionsRepository = new SubscriptionsRepository(pool);
+    const stripeClient = new StripeClient();
 
     this.userProfileService = new UserProfileService(this.userProfileRepository);
-    this.userProfileService.setAdminRepository(adminRepository);
-    this.adminService = new AdminService(adminRepository);
+    this.userProfileService.setAdminRepository(this.adminRepository);
+    this.adminService = new AdminService(this.adminRepository);
+    // Admin feature depends on Subscriptions for tier management
+    // This is intentional - admin has oversight capabilities
+    this.subscriptionsService = new SubscriptionsService(subscriptionsRepository, stripeClient, pool);
   }
 
   /**
@@ -226,6 +236,8 @@ export class UsersController {
 
   /**
    * PATCH /api/admin/users/:auth0Sub/tier - Update subscription tier
+   * Uses subscriptionsService.adminOverrideTier() to sync both subscriptions.tier
+   * and user_profiles.subscription_tier atomically
    */
   async updateTier(
     request: FastifyRequest<{ Params: UserAuth0SubInput; Body: UpdateTierInput }>,
@@ -261,12 +273,39 @@ export class UsersController {
       const { auth0Sub } = paramsResult.data;
       const { subscriptionTier } = bodyResult.data;
 
-      const updatedUser = await this.userProfileService.updateSubscriptionTier(
+      // Verify user exists before attempting tier change
+      const currentUser = await this.userProfileService.getUserDetails(auth0Sub);
+      if (!currentUser) {
+        return reply.code(404).send({
+          error: 'Not found',
+          message: 'User not found',
+        });
+      }
+
+      const previousTier = currentUser.subscriptionTier;
+
+      // Use subscriptionsService to update both tables atomically
+      await this.subscriptionsService.adminOverrideTier(auth0Sub, subscriptionTier);
+
+      // Log audit action
+      await this.adminRepository.logAuditAction(
+        actorId,
+        'UPDATE_TIER',
         auth0Sub,
-        subscriptionTier,
-        actorId
+        'user_profile',
+        currentUser.id,
+        { previousTier, newTier: subscriptionTier }
       );
 
+      logger.info('User subscription tier updated via admin', {
+        auth0Sub,
+        previousTier,
+        newTier: subscriptionTier,
+        actorAuth0Sub: actorId,
+      });
+
+      // Return updated user profile
+      const updatedUser = await this.userProfileService.getUserDetails(auth0Sub);
       return reply.code(200).send(updatedUser);
     } catch (error) {
       const errorMessage = error instanceof Error ? error.message : 'Unknown error';

backend/src/features/subscriptions/data/subscriptions.repository.ts

@@ -10,6 +10,7 @@ import {
   SubscriptionEvent,
   Donation,
   TierVehicleSelection,
+  SubscriptionTier,
   CreateSubscriptionRequest,
   UpdateSubscriptionData,
   CreateSubscriptionEventRequest,
@@ -526,6 +527,92 @@ export class SubscriptionsRepository {
     }
   }
 
+  // ========== Transaction Support ==========
+
+  /**
+   * Update subscription tier by user ID (supports transactions)
+   * Used by adminOverrideTier for atomic dual-table updates
+   */
+  async updateTierByUserId(
+    userId: string,
+    tier: SubscriptionTier,
+    client?: any
+  ): Promise<Subscription | null> {
+    const queryClient = client || this.pool;
+    const query = `
+      UPDATE subscriptions
+      SET tier = $1
+      WHERE user_id = $2
+      RETURNING *
+    `;
+
+    try {
+      const result = await queryClient.query(query, [tier, userId]);
+
+      if (result.rows.length === 0) {
+        return null;
+      }
+
+      logger.info('Subscription tier updated by user ID', { userId, tier });
+      return this.mapSubscriptionRow(result.rows[0]);
+    } catch (error: any) {
+      logger.error('Failed to update subscription tier by user ID', {
+        userId,
+        tier,
+        error: error.message,
+      });
+      throw error;
+    }
+  }
+
+  /**
+   * Create subscription for admin override (when user has no subscription record)
+   * Uses provided client for transaction support
+   */
+  async createForAdminOverride(
+    userId: string,
+    tier: SubscriptionTier,
+    client?: any
+  ): Promise<Subscription> {
+    const queryClient = client || this.pool;
+    // Generate a placeholder Stripe customer ID since admin override bypasses Stripe
+    const placeholderCustomerId = `admin_override_${userId}_${Date.now()}`;
+
+    const query = `
+      INSERT INTO subscriptions (
+        user_id, stripe_customer_id, tier, billing_cycle, status
+      )
+      VALUES ($1, $2, $3, 'monthly', 'active')
+      RETURNING *
+    `;
+
+    const values = [userId, placeholderCustomerId, tier];
+
+    try {
+      const result = await queryClient.query(query, values);
+      logger.info('Subscription created via admin override', {
+        subscriptionId: result.rows[0].id,
+        userId,
+        tier,
+      });
+      return this.mapSubscriptionRow(result.rows[0]);
+    } catch (error: any) {
+      logger.error('Failed to create subscription for admin override', {
+        userId,
+        tier,
+        error: error.message,
+      });
+      throw error;
+    }
+  }
+
+  /**
+   * Get pool for transaction management
+   */
+  getPool(): Pool {
+    return this.pool;
+  }
+
   // ========== Private Mapping Methods ==========
 
   private mapSubscriptionRow(row: any): Subscription {

backend/src/features/subscriptions/domain/subscriptions.service.ts

@@ -728,6 +728,67 @@ export class SubscriptionsService {
     return 'free';
   }
 
+  /**
+   * Admin override of subscription tier (bypasses Stripe)
+   * Updates both subscriptions.tier and user_profiles.subscription_tier atomically
+   * Creates subscription record if user doesn't have one
+   *
+   * Note: Admin feature depends on Subscriptions for tier management
+   * This is intentional - admin has oversight capabilities
+   */
+  async adminOverrideTier(userId: string, newTier: SubscriptionTier): Promise<Subscription> {
+    const pool = this.repository.getPool();
+    const client = await pool.connect();
+
+    try {
+      await client.query('BEGIN');
+
+      logger.info('Admin overriding subscription tier', { userId, newTier });
+
+      // Check if user has a subscription record
+      let subscription = await this.repository.findByUserId(userId);
+
+      if (!subscription) {
+        // Create subscription record for user (admin override bypasses Stripe)
+        logger.info('Creating subscription record for admin override', { userId, newTier });
+        subscription = await this.repository.createForAdminOverride(userId, newTier, client);
+      } else {
+        // Update existing subscription tier
+        const updated = await this.repository.updateTierByUserId(userId, newTier, client);
+        if (!updated) {
+          throw new Error('Failed to update subscription tier');
+        }
+        subscription = updated;
+      }
+
+      // Sync tier to user_profiles table (within same transaction)
+      await client.query(
+        'UPDATE user_profiles SET subscription_tier = $1 WHERE auth0_sub = $2',
+        [newTier, userId]
+      );
+
+      await client.query('COMMIT');
+
+      logger.info('Admin subscription tier override complete', {
+        userId,
+        newTier,
+        subscriptionId: subscription.id,
+      });
+
+      return subscription;
+    } catch (error: any) {
+      await client.query('ROLLBACK');
+      logger.error('Failed to admin override subscription tier', {
+        userId,
+        newTier,
+        error: error.message,
+      });
+      throw error;
+    } finally {
+      client.release();
+    }
+  }
+
   /**
    * Get invoices for a user's subscription
    */