# Implementation Summary: SQLite, Webhooks, and Tests
## ✅ Completed Implementations
### 1. Email-Based License Validation ✅
- **Service**: `StripeLicenseService.validateLicenseByEmail()`
- **API Endpoint**: `GET /api/v1/licenses/email/{email}/validate`
- **Features**:
- Validates email format
- Checks Stripe customers by email
- Finds active subscriptions
- Caches results
- **Tests**: `StripeEmailValidationTest.java` ✅
### 2. Payment Links Service ✅
- **Service**: `StripePaymentLinkService`
- **API Endpoints**:
- `GET /api/v1/payment-links/{productName}`
- `GET /api/v1/payment-links`
- **Features**:
- Get payment link by product name
- Get all payment links
- Case-insensitive product names
- **Tests**: `StripePaymentLinkServiceTest.java` ✅
### 3. Stripe Webhook Integration ✅
- **Controller**: `StripeWebhookController`
- **Endpoint**: `POST /api/v1/stripe/webhook`
- **Features**:
- Webhook signature validation (HMAC-SHA256)
- Handles events:
- `customer.created`
- `customer.subscription.created`
- `customer.subscription.updated`
- `customer.subscription.deleted`
- `invoice.payment_succeeded`
- `invoice.payment_failed`
- Integrates with local storage (when enabled)
### 4. SQLite Local Storage ⚠️ (Code Complete, Needs Configuration)
- **Entity**: `LicenseSession`
- **Repository**: `LicenseSessionRepository`
- **Service**: `LocalLicenseStorageService`
- **Configuration**: `SqliteStorageConfig`
- **Status**: Code written but has compilation issues due to JPA exclusions
**Issue**: Project excludes JPA auto-configuration, but SQLite requires JPA.
**Solutions**:
1. **Option A (Recommended)**: Switch to JDBC instead of JPA
- Simpler, no JPA dependencies
- Works with existing exclusions
- Manual SQL queries
2. **Option B**: Make JPA exclusions conditional
- Use Spring profiles
- More complex configuration
3. **Option C**: Document manual setup
- Users remove JPA exclusions when enabling SQLite
- Simplest for codebase
## 📋 Test Coverage
### ✅ Tests Created
1. **StripePaymentLinkServiceTest** ✅
- 10 test methods
- Covers all service methods
- Tests error handling
2. **StripeEmailValidationTest** ✅
- 6 test methods
- Tests email validation logic
- Tests error handling
- Tests caching
### ⏳ Tests Pending
1. **SQLite Storage Tests** - Waiting for SQLite implementation fix
2. **Webhook Tests** - Can be created once SQLite is fixed
3. **Integration Tests** - End-to-end tests for full flow
## 🔧 Configuration
### Enable Email Validation
```yaml
jakarta:
migration:
stripe:
enable-email-validation: true
```
### Configure Payment Links
```yaml
jakarta:
migration:
stripe:
payment-links:
starter: https://buy.stripe.com/starter-link
professional: https://buy.stripe.com/professional-link
enterprise: https://buy.stripe.com/enterprise-link
```
### Enable Webhooks
```yaml
jakarta:
migration:
stripe:
webhook-secret: whsec_...
```
### Enable SQLite (When Fixed)
```yaml
jakarta:
migration:
storage:
sqlite:
enabled: true
database-path: .mcp_license_sessions.db
cache-ttl-hours: 24
```
## 📝 Next Steps
1. **Fix SQLite Implementation**
- Choose Option A (JDBC) or Option B (Conditional JPA)
- Update `LocalLicenseStorageService` to use chosen approach
- Test SQLite functionality
2. **Create Remaining Tests**
- SQLite storage tests
- Webhook handler tests
- Integration tests
3. **Update Documentation**
- SQLite setup guide
- Webhook configuration guide
- Testing guide
## 🎯 Implementation Status
| Feature | Status | Tests | Notes |
|---------|--------|-------|-------|
| Email Validation | ✅ Complete | ✅ Complete | Fully functional |
| Payment Links | ✅ Complete | ✅ Complete | Fully functional |
| Webhooks | ✅ Complete | ⏳ Pending | Code complete, needs SQLite for full integration |
| SQLite Storage | ⚠️ Code Complete | ⏳ Pending | Needs JPA/JDBC fix |
## 📚 Files Created/Modified
### New Files
- `src/main/java/adrianmikula/jakartamigration/api/service/StripePaymentLinkService.java`
- `src/main/java/adrianmikula/jakartamigration/api/controller/StripeWebhookController.java`
- `src/main/java/adrianmikula/jakartamigration/storage/entity/LicenseSession.java`
- `src/main/java/adrianmikula/jakartamigration/storage/repository/LicenseSessionRepository.java`
- `src/main/java/adrianmikula/jakartamigration/storage/service/LocalLicenseStorageService.java`
- `src/main/java/adrianmikula/jakartamigration/storage/config/SqliteStorageConfig.java`
- `src/main/java/adrianmikula/jakartamigration/api/dto/PaymentLinkResponse.java`
- `src/test/java/adrianmikula/jakartamigration/api/service/StripePaymentLinkServiceTest.java`
- `src/test/java/adrianmikula/jakartamigration/config/StripeEmailValidationTest.java`
### Modified Files
- `src/main/java/adrianmikula/jakartamigration/config/StripeLicenseService.java` - Added email validation
- `src/main/java/adrianmikula/jakartamigration/config/StripeLicenseProperties.java` - Added payment links config
- `src/main/java/adrianmikula/jakartamigration/config/LicenseService.java` - Added email validation
- `src/main/java/adrianmikula/jakartamigration/api/controller/LicenseApiController.java` - Added email/payment link endpoints
- `src/main/resources/application.yml` - Added SQLite and payment links config
- `build.gradle.kts` - Added SQLite and Hibernate dependencies
## 🔗 References
- [Stripe Payment Links](https://stripe.com/docs/payment-links)
- [Stripe Webhooks](https://stripe.com/docs/webhooks)
- [SQLite JDBC](https://github.com/xerial/sqlite-jdbc)
- [Original Requirements](docs/research/stripe-licencing-options.md)
