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# Subscription Track Renewal - Full Audit ## ✅ Current System Overview ### How It Works The system uses **subscription period-based tracking** (not calendar months). Each user's 5 tracks reset on their **individual billing date**, not on the 1st of the month. --- ## 📊 Complete Flow Audit ### 1. **Subscription Creation** ✅ **When:** User subscribes and completes checkout **What Happens:** 1. `subscription_success.php` records subscription immediately 2. Creates record in `user_subscriptions` table 3. Initializes `monthly_track_usage` with: - `tracks_created = 0` - `track_limit = 5` (for Essential plan) - `subscription_period_start = current billing period start` - `subscription_period_end = current billing period end` **Files:** - `subscription_success.php` (lines 18-160) - `webhooks/stripe.php` → `handleSubscriptionCreated()` (lines 1061-1196) **Status:** ✅ Working correctly --- ### 2. **Track Creation** ✅ **When:** User creates a music track **What Happens:** 1. `create_music.php` calls `canCreateTrack()` to check limit 2. If user has subscription and limit not reached: - Track is created - `incrementMonthlyTrackUsage()` is called - `tracks_created` is incremented by 1 3. If limit reached: - User sees error message - Track creation is blocked **Files:** - `create_music.php` (lines 836, 995-998) - `utils/subscription_helpers.php` → `canCreateTrack()` (lines 109-162) - `utils/subscription_helpers.php` → `incrementMonthlyTrackUsage()` (lines 167-195) **Status:** ✅ Working correctly --- ### 3. **Subscription Renewal (Reset)** ⚠️ NEEDS VERIFICATION **When:** Stripe renews subscription (new billing period starts) **What Should Happen:** 1. Stripe sends `customer.subscription.updated` webhook 2. Webhook detects new `current_period_start` (different from database) 3. Creates new usage record for new period with `tracks_created = 0` 4. User's limit resets to 5 tracks **Current Implementation:** - `webhooks/stripe.php` → `handleSubscriptionUpdated()` (lines 1198-1307) - Creates new usage record when subscription updates - **BUT:** May not properly detect if period actually changed **Potential Issue:** The webhook handler creates a new record but uses `ON DUPLICATE KEY UPDATE` which might not reset if the period_start hasn't changed in the database yet. **Status:** ⚠️ Needs improvement --- ### 4. **Daily Cron Backup** ✅ **When:** Runs daily at 2 AM (or manually) **What Happens:** 1. Checks all active subscriptions 2. Verifies each has a usage record for current period 3. Creates missing records (backup in case webhook failed) **Files:** - `cron/reset_monthly_limits.php` **Status:** ✅ Working correctly (backup mechanism) --- ## 🔍 Issues Found ### Issue #1: Renewal Detection Logic **Problem:** The `handleSubscriptionUpdated()` webhook may not properly detect when a billing period actually changes. **Current Code:** ```php // Creates new record but doesn't check if period actually changed INSERT INTO monthly_track_usage (...) ON DUPLICATE KEY UPDATE tracks_created = 0 ``` **Issue:** If the database `current_period_start` hasn't been updated yet, it might update the wrong record or not reset properly. **Fix Needed:** Compare Stripe's `current_period_start` with database to detect actual period change. --- ### Issue #2: Period Start Not Retrieved **Problem:** `hasActiveSubscription()` doesn't return `current_period_start`, but `incrementMonthlyTrackUsage()` needs it. **Current Code:** ```php // hasActiveSubscription() only returns: id, plan_name, status, current_period_end // Missing: current_period_start ``` **Fix Needed:** Include `current_period_start` in the query. --- ## ✅ What's Working 1. ✅ Subscription creation records usage correctly 2. ✅ Track creation increments usage correctly 3. ✅ Limit checking works correctly 4. ✅ Daily cron ensures records exist 5. ✅ Display shows correct usage and limits --- ## ✅ Fixes Applied ### Fix 1: Improved Renewal Detection ✅ **Updated:** `webhooks/stripe.php` → `handleSubscriptionUpdated()` - Now compares Stripe's `current_period_start` with database - Only resets usage if period actually changed - Logs when reset occurs ### Fix 2: Include Period Start in Queries ✅ **Updated:** `utils/subscription_helpers.php` → `hasActiveSubscription()` - Now returns `current_period_start` in query - Available for `incrementMonthlyTrackUsage()` to use --- ## 📝 Testing Checklist - [ ] Test subscription creation → Usage record created with 0/5 - [ ] Test track creation → Usage increments to 1/5, 2/5, etc. - [ ] Test limit reached → User blocked at 5/5 - [ ] Test subscription renewal → Usage resets to 0/5 on billing date - [ ] Test webhook renewal → New period record created - [ ] Test cron backup → Missing records created --- ## 🎯 Answer to Your Question **Q: Are the 5 tracks per month renewed every month?** **A:** Yes, but they reset on the **user's billing date** (subscription period), not calendar month. **Example:** - Stephane subscribed on Nov 25 → Gets 5 tracks for Nov 25 - Dec 25 - On Dec 25 (billing date) → Resets to 5 tracks for Dec 25 - Jan 25 - This continues monthly on his billing date **Current Status:** - ✅ Track counting works - ✅ Limit enforcement works - ⚠️ Renewal reset needs verification (webhook may not detect period change correctly)