- Add webhookClient parameter to OrderProfileHandlerWithRepo and DeleteProfileHandlerWithRepo
- Add SendDownloadFailed webhook notification on profile order failure with error details
- Add SendProfileDownloaded webhook notification on successful profile download with IMSI, profileType, and status
- Add SendProfileDeleted webhook notification on profile deletion with executionStatus and statusMessage
- Add webhook package import
- Add CachedProfileStore wrapper with configurable TTL and automatic cleanup
- Add cacheEntry struct with profile data and expiration timestamp
- Add Get method with cache-first lookup and automatic cache population on miss
- Add cache invalidation on Create, UpdateState, and Delete operations
- Add background cleanup goroutine with ticker running at TTL/2 interval
- Add manual Invalidate and InvalidateAll methods for cache
- Add maxRetries (3) and retryDelay (1s) fields to ES2Client struct
- Add retryableError helper to identify retryable errors (network errors, 5xx, 429)
- Add executeWithRetry method with exponential backoff and context cancellation support
- Replace direct httpClient.Do calls with executeWithRetry in all ES2 operations
- Update error messages to indicate retry attempts ("after retries")
- Add math package import for exponential backoff calculation
- Add CachedProfileStore wrapper around PostgresProfileStore with 5-minute TTL
- Add defer close for underlying postgresRepo to ensure proper cleanup
- Rename profileRepo variable to postgresRepo for clarity before wrapping
- Add caching layer to reduce database load for profile lookups
- Add rounding to monthly fee conversion to cents to prevent precision loss
- Replace direct subtraction with saturating_sub to prevent i64 underflow
- Add fee_cents variable for clearer monthly fee calculation in billing cycle
- Add current balance retrieval before credit increment operation
- Add checked_add validation to prevent u64 overflow when adding credits
- Add InvalidInput error return when credit addition would cause overflow
- Add overflow check between get and incr operations on Redis credit key
- Add SubscriberHandler to serverDeps with NewSubscriberService initialization
- Add subscriber routes to v1 API with GET (list, by id, by IMSI) and protected POST/PUT operations
- Add RBAC enforcement for subscriber creation, updates, suspension, and termination (admin, operator roles)
- Add registerSubscriberRoutes function with /subscribers endpoint group
- Add LoginPage component with toggle between login and registration modes
- Add form state management for username, password, email, first_name, last_name fields
- Add handleSubmit with api.auth.login/register integration and token storage (access_token, refresh_token)
- Add error handling with red alert banner display
- Add conditional rendering for registration fields (email, first_name, last_name)
- Add loading state with
- Add ChargingEngineClient struct with reqwest HTTP client and configurable base URL
- Add report_usage method for single usage event reporting with volume conversion (bytes to MB)
- Add report_batch_usage method for processing multiple usage events with error tolerance
- Add UsageEvent and UsageResponse types for API request/response serialization
- Add tracing integration (info, warn, error) for usage reporting
- Extract health check handlers to new health.rs module (health, liveness, readiness, metrics endpoints)
- Extract IP conversion utilities to new ip_utils.rs module (u32_to_ipv4_string, ipv4_string_to_u32)
- Extract Redis synchronization logic to new redis_sync.rs module (RedisSyncer with sync_packet_stats, sync_credit_info, sync_credits_from_redis, sync_blocked_from_redis, sync_batch_entry methods)
- Refactor EbpfManager
- Add MetricsResponse struct with status, service, timestamp, tracked_ips, total_bytes_processed, and low_credit_users fields
- Add metrics_handler function calculating tracked IPs count, total bytes processed sum, and low credit users count from EbpfManager stats
- Add GET /metrics route to health check server
- Add ebpf_manager_clone state to health check server for metrics access
- Add APIKey field to ChargingEngineConfig struct
- Add apiKey field to ChargingEngineClient struct
- Add setAPIKeyHeader method to set X-API-Key header when API key is configured
- Call setAPIKeyHeader in CheckCredit, DeductCredit, AddCredit, GetBalance, and HealthCheck methods
- Add api_keys field to AuthConfig struct
- Parse API_KEYS environment variable as comma-separated list in from_env
- Add validate_api_key method to AuthConfig for key verification
- Add X-API-Key header check in auth_middleware before JWT validation
- Update comments to clarify development/testing mode for unauthenticated requests
- Replace createHttpLink with HttpLink constructor
- Replace setContext with SetContextLink constructor
- Update authLink to use prevContext parameter and spread operator for proper context merging
- Replace from with ApolloLink.from for link composition
- Remove ApolloProvider wrapper from Providers component (render children directly)
- Add auth module import to main.rs
- Add AuthConfig initialization from environment in main function
- Add auth_config field to AppState struct
- Add auth_middleware layer to protected routes
- Move health check, credit check, deduct, balance, and usage recording to public routes (no auth required for packet-gateway integration)
- Move add credit, subscriber management, rating plans, monitoring, and engine
- Add Claims struct with sub and exp fields for JWT payload
- Add AuthConfig struct with secret field loaded from JWT_SECRET environment variable
- Add create_token function generating 24-hour expiration tokens
- Add validate_token function for JWT verification
- Add auth_middleware for Axum with Authorization header Bearer token validation
- Allow unauthenticated requests temporarily for packet-gateway integration
- Add @apollo/client ^4.1.9 and graphql ^16.10.0 dependencies to package.json
- Add apollo-client.ts with ApolloClient configuration, HTTP link to API server, and auth link for token-based authentication
- Add Providers component wrapping children with ApolloProvider
- Wrap Sidebar and main content with Providers in root layout
- Configure cache-and-network and network-only fetch policies for queries and mutations
- Move charging routes from protected /api group to public /v1/charging group for packet-gateway integration
- Add GET /v1/health endpoint returning status ok
- Remove registerChargingRoutes function (routes now inline in registerV1Routes)
- Remove registerChargingRoutes call from apiProtected group
- Add chargingH field to serverDeps struct
- Add ChargingEngineClient initialization in buildDeps
- Add NewChargingHandler with chargingEngineClient dependency
- Add registerChargingRoutes function with /charging group
- Add POST /charging/credit/:ip/check endpoint
- Add GET /charging/credit/:ip/balance endpoint
- Add POST /charging/credit/:ip/add endpoint
- Add POST /charging/credit/:ip/deduct endpoint
- Call registerChargingRoutes in
- Add ChargingHandler struct with ChargingEngineClient dependency
- Add NewChargingHandler constructor
- Add CheckCredit endpoint to validate sufficient credit for requested bytes
- Add GetBalance endpoint to retrieve current balance for an IP
- Add AddCredit endpoint to add bytes to an IP's credit
- Add DeductCredit endpoint to deduct bytes from an IP's credit
- Add IP parameter validation and JSON request binding
- Add axum, serde, serde_json, and chrono dependencies to Cargo.toml
- Add health_port CLI argument (defaults to 8081)
- Add /health endpoint returning basic health status
- Add /health/live endpoint for liveness checks (always returns alive if service is running)
- Add /health/ready endpoint for readiness checks with Redis connectivity and eBPF attachment validation
- Add AtomicBool to track eBPF attachment status across
- Add Ping method to PostgresProfileStore to check database connection status
- Add Ping method to ProfileRepository interface
- Add /api/v1/health/live endpoint for liveness checks (always returns alive if service is running)
- Add /api/v1/health/ready endpoint for readiness checks with database connectivity validation
- Add readinessHandler that returns SERVICE_UNAVAILABLE status when database ping fails
- Add credit_management_tests.rs with tests for SubscriberAccount, UsageEvent, UsageType, AccountStatus, and integer arithmetic operations
- Add error_tests.rs with tests for ChargingError Display implementation, cloning, and log_error function
- Add rating_billing_tests.rs with tests for ChargingRule variants, as_str conversion, billing period parsing, timestamp filtering, and cost calculations
- Add validation_tests.rs with tests for validate_bytes, validate
- Add DatabaseError(String) variant to ChargingError enum
- Add DatabaseError case to log_error helper with error-level logging
- Add DatabaseError Display implementation
- Refactor IntoResponse to use generic error messages instead of detailed strings
- Add detail field to error responses containing full error message via to_string()
- Change RedisConnection status code from INTERNAL_SERVER_ERROR to SERVICE_UNAVAILABLE
- Replace RedisOperation error variant with DatabaseError in new/get/list_map/add/remove methods
- Update 5 map_err calls to use DatabaseError for SQLx operation failures
- Replace float division with integer arithmetic in calculate_usage_cost for data/voice conversions
- Add checked_add overflow protection for usage accumulation in apply_charging_rules and process_usage
- Replace String-based charging rules with ChargingRule enum variants
- Add Datelike import and implement billing period filtering in generate_invoice
- Replace blocking KEYS command with SCAN cursor iteration
- Replace unwrap_or(0) with map_err for get operation in deduct_credit
- Replace unwrap_or(0) with ? operator in check_credit
- Add RedisOperation error mapping for current_balance retrieval
- Remove dead_code attributes from get_balance/add_credit/start/stop/uptime/rating plan methods in credit_management and engine
- Remove dead_code attributes from calculate_usage_cost in rating_billing
- Remove dead_code attributes from get/list_map/deactivate methods in rating_plans_repo and row_to_plan function
- Remove dead_code attributes from get_performance_metrics/start_background_sync in monitoring modules
- Add POST /v1/usage/calculate-cost endpoint to calculate usage cost for events
- Add POST /v1/usage/rate endpoint to rate usage events
- Add POST /v1/usage/process endpoint for full rating and billing processing
- Add GET /v1/invoice/:imsi/:period endpoint to generate invoices for billing periods
- Add list_map call to list_rating_plans handler for internal lookups
- Add session_id validation to all usage endpoints using validate_session_id helper
- Move all handler functions from api.rs to new handlers.rs module
- Add 20+ handler functions for credit management, subscriber accounts, rating plans, user blocking, system stats, metrics, engine control, error stats, sync control, and health checks
- Add input validation using validate_ip/validate_bytes/validate_amount/validate_session_id helpers
- Add error context and logging to all handlers using with_context and log
- Add error mapping to list_rating_plans in engine.rs
- Add dead_code attributes to get/list_map/deactivate methods in rating_plans_repo and row_to_plan function
- Add list method to RatingPlansRepo returning Vec<RatingPlan>
- Add dead_code attribute to validate_imsi in helpers
- Add UsageBlocked and ConfigurationError variants to ChargingError with Display/IntoResponse implementations
- Add Default
- Move create_router function from api.rs to new routes.rs module
- Move routing imports (delete/get/post/put/Router/CorsLayer) from api to routes
- Add handler function imports to routes module
- Move AppState from api to models module
- Remove validation comments from check_credit/deduct_credit/add_credit/get_balance/record_usage handlers
- Add IntoResponse import to api module
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