# SQLite, Webhook, and Tests Implementation Status
## Implementation Summary
This document tracks the implementation of:
1. SQLite local storage for license sessions
2. Stripe webhook integration
3. Tests for all new features
## Current Status
### ✅ Completed
1. **Stripe Payment Links Service** - ✅ Complete
2. **Email-based License Validation** - ✅ Complete
3. **Webhook Controller** - ✅ Complete (code written, needs dependency fixes)
4. **SQLite Entity/Repository** - ✅ Complete (code written, needs dependency fixes)
### ⚠️ In Progress
**SQLite Implementation** - Code written but has compilation issues due to JPA exclusions.
**Issue**: The project excludes JPA auto-configuration in `application.yml` to prevent database initialization when no database is available. However, SQLite support requires JPA.
**Solutions**:
1. **Option A (Recommended)**: Use JDBC directly instead of JPA for SQLite
- Simpler, no JPA dependencies needed
- Manual SQL queries
- Works with existing exclusions
2. **Option B**: Make JPA exclusions conditional
- Requires profile-based configuration
- More complex but keeps JPA benefits
3. **Option C**: Document manual configuration
- Users manually remove JPA exclusions when enabling SQLite
- Simplest for codebase but requires user action
### 📝 Next Steps
1. **Fix SQLite Implementation** - Choose Option A (JDBC) for simplicity
2. **Integrate SQLite into LicenseService** - Use local storage as cache
3. **Create Tests** - Test email validation, payment links, webhooks, SQLite
4. **Update Documentation** - Document SQLite setup and webhook configuration
## Implementation Details
### SQLite Storage
**Purpose**: Cache license validation results locally for offline support.
**Features**:
- Store email-to-tier mappings
- Store license key-to-tier mappings
- TTL-based expiration
- Automatic cleanup of expired sessions
**Database Schema**:
```sql
CREATE TABLE license_sessions (
id INTEGER PRIMARY KEY AUTOINCREMENT,
email TEXT NOT NULL UNIQUE,
license_key TEXT,
tier TEXT NOT NULL,
created_at TIMESTAMP NOT NULL,
expires_at TIMESTAMP NOT NULL,
last_accessed_at TIMESTAMP NOT NULL
);
CREATE INDEX idx_email ON license_sessions(email);
CREATE INDEX idx_license_key ON license_sessions(license_key);
CREATE INDEX idx_expires_at ON license_sessions(expires_at);
```
### Webhook Integration
**Endpoint**: `POST /api/v1/stripe/webhook`
**Events Handled**:
- `customer.created` - Store customer session
- `customer.subscription.created` - Update license tier
- `customer.subscription.updated` - Update license tier
- `customer.subscription.deleted` - Remove license
- `invoice.payment_succeeded` - Sync credits (future)
- `invoice.payment_failed` - Log payment failure
**Security**: Webhook signature validation using HMAC-SHA256
### Tests Needed
1. **Email Validation Tests**
- Test `validateLicenseByEmail()` with valid/invalid emails
- Test caching behavior
- Test offline fallback
2. **Payment Links Tests**
- Test `getPaymentLink()` for different products
- Test `getAllPaymentLinks()`
- Test error handling
3. **SQLite Storage Tests**
- Test session storage/retrieval
- Test expiration handling
- Test cleanup job
4. **Webhook Tests**
- Test signature validation
- Test event handling
- Test error scenarios
## Configuration
### Enable SQLite
```yaml
jakarta:
migration:
storage:
sqlite:
enabled: true
database-path: .mcp_license_sessions.db
cache-ttl-hours: 24
```
### Enable Webhooks
```yaml
jakarta:
migration:
stripe:
webhook-secret: whsec_...
```
**Note**: When SQLite is enabled, you may need to remove JPA exclusions from `application.yml` or use JDBC directly.
## References
- [Stripe Webhooks Documentation](https://stripe.com/docs/webhooks)
- [SQLite JDBC Driver](https://github.com/xerial/sqlite-jdbc)
- [Original Requirements](docs/research/stripe-licencing-options.md)
