# ADR Implementation Tracker

This document tracks the implementation status and estimated effort for all Architectural Decision Records (ADRs).

## Effort Estimation Guide

| Rating | Description                                 | Typical Duration  |
| ------ | ------------------------------------------- | ----------------- |
| S      | Small - Simple, isolated changes            | 1-2 hours         |
| M      | Medium - Multiple files, some testing       | Half day to 1 day |
| L      | Large - Significant refactoring, many files | 1-3 days          |
| XL     | Extra Large - Major architectural change    | 1+ weeks          |

## Implementation Status Overview

| Status                       | Count |
| ---------------------------- | ----- |
| Accepted (Fully Implemented) | 42    |
| Partially Implemented        | 2     |
| Proposed (Not Started)       | 12    |
| Superseded                   | 1     |

---

## Detailed Implementation Status

### Category 1: Foundational / Core Infrastructure

| ADR                                                              | Title                   | Status   | Effort | Notes                          |
| ---------------------------------------------------------------- | ----------------------- | -------- | ------ | ------------------------------ |
| [ADR-002](./0002-standardized-transaction-management.md)         | Transaction Management  | Accepted | -      | Fully implemented              |
| [ADR-007](./0007-configuration-and-secrets-management.md)        | Configuration & Secrets | Accepted | -      | Fully implemented              |
| [ADR-020](./0020-health-checks-and-liveness-readiness-probes.md) | Health Checks           | Accepted | -      | Fully implemented              |
| [ADR-030](./0030-graceful-degradation-and-circuit-breaker.md)    | Circuit Breaker         | Proposed | L      | New resilience patterns needed |

### Category 2: Data Management

| ADR                                                             | Title                    | Status     | Effort | Notes                          |
| --------------------------------------------------------------- | ------------------------ | ---------- | ------ | ------------------------------ |
| [ADR-009](./0009-caching-strategy-for-read-heavy-operations.md) | Caching Strategy         | Accepted   | -      | Fully implemented              |
| [ADR-013](./0013-database-schema-migration-strategy.md)         | Schema Migrations v1     | Superseded | -      | Superseded by ADR-023          |
| [ADR-019](./0019-data-backup-and-recovery-strategy.md)          | Backup & Recovery        | Accepted   | -      | Fully implemented              |
| [ADR-023](./0023-database-schema-migration-strategy.md)         | Schema Migrations v2     | Proposed   | L      | Requires tooling setup         |
| [ADR-031](./0031-data-retention-and-privacy-compliance.md)      | Data Retention & Privacy | Proposed   | XL     | Legal/compliance review needed |

### Category 3: API & Integration

| ADR                                                                 | Title                    | Status   | Effort | Notes                                 |
| ------------------------------------------------------------------- | ------------------------ | -------- | ------ | ------------------------------------- |
| [ADR-003](./0003-standardized-input-validation-using-middleware.md) | Input Validation         | Accepted | -      | Fully implemented                     |
| [ADR-008](./0008-api-versioning-strategy.md)                        | API Versioning           | Accepted | -      | Phase 2 complete, tests migrated      |
| [ADR-018](./0018-api-documentation-strategy.md)                     | API Documentation        | Accepted | -      | OpenAPI/Swagger implemented           |
| [ADR-022](./0022-real-time-notification-system.md)                  | Real-time Notifications  | Accepted | -      | Fully implemented                     |
| [ADR-028](./0028-api-response-standardization.md)                   | Response Standardization | Accepted | -      | Completed (routes, middleware, tests) |

### Category 4: Security & Compliance

| ADR                                                                     | Title                 | Status   | Effort | Notes                            |
| ----------------------------------------------------------------------- | --------------------- | -------- | ------ | -------------------------------- |
| [ADR-001](./0001-standardized-error-handling.md)                        | Error Handling        | Accepted | -      | Fully implemented                |
| [ADR-011](./0011-advanced-authorization-and-access-control-strategy.md) | Authorization & RBAC  | Proposed | XL     | Policy engine, permission system |
| [ADR-016](./0016-api-security-hardening.md)                             | Security Hardening    | Accepted | -      | Fully implemented                |
| [ADR-029](./0029-secret-rotation-and-key-management.md)                 | Secret Rotation       | Proposed | L      | Infrastructure changes needed    |
| [ADR-032](./0032-rate-limiting-strategy.md)                             | Rate Limiting         | Accepted | -      | Fully implemented                |
| [ADR-033](./0033-file-upload-and-storage-strategy.md)                   | File Upload & Storage | Accepted | -      | Fully implemented                |
| [ADR-048](./0048-authentication-strategy.md)                            | Authentication        | Accepted | -      | Fully implemented                |

### Category 5: Observability & Monitoring

| ADR                                                                   | Title                       | Status   | Effort | Notes                                      |
| --------------------------------------------------------------------- | --------------------------- | -------- | ------ | ------------------------------------------ |
| [ADR-004](./0004-standardized-application-wide-structured-logging.md) | Structured Logging          | Accepted | -      | Fully implemented                          |
| [ADR-015](./0015-error-tracking-and-observability.md)                 | Error Tracking              | Accepted | -      | Fully implemented                          |
| [ADR-050](./0050-postgresql-function-observability.md)                | PostgreSQL Fn Observability | Accepted | -      | Fully implemented                          |
| [ADR-051](./0051-asynchronous-context-propagation.md)                 | Context Propagation         | Accepted | -      | Fully implemented                          |
| [ADR-052](./0052-granular-debug-logging-strategy.md)                  | Granular Debug Logging      | Accepted | -      | Fully implemented                          |
| [ADR-056](./0056-application-performance-monitoring.md)               | APM (Performance)           | Proposed | M      | tracesSampleRate=0, intentionally disabled |

### Category 6: Deployment & Operations

| ADR                                                            | Title              | Status   | Effort | Notes                    |
| -------------------------------------------------------------- | ------------------ | -------- | ------ | ------------------------ |
| [ADR-006](./0006-background-job-processing-and-task-queues.md) | Background Jobs    | Accepted | -      | Fully implemented        |
| [ADR-014](./0014-containerization-and-deployment-strategy.md)  | Containerization   | Partial  | M      | Docker done, K8s pending |
| [ADR-017](./0017-ci-cd-and-branching-strategy.md)              | CI/CD & Branching  | Accepted | -      | Fully implemented        |
| [ADR-024](./0024-feature-flagging-strategy.md)                 | Feature Flags      | Accepted | -      | Fully implemented        |
| [ADR-037](./0037-scheduled-jobs-and-cron-pattern.md)           | Scheduled Jobs     | Accepted | -      | Fully implemented        |
| [ADR-038](./0038-graceful-shutdown-pattern.md)                 | Graceful Shutdown  | Accepted | -      | Fully implemented        |
| [ADR-053](./0053-worker-health-checks.md)                      | Worker Health      | Accepted | -      | Fully implemented        |
| [ADR-054](./0054-bugsink-gitea-issue-sync.md)                  | Bugsink-Gitea Sync | Proposed | L      | Automated issue creation |

### Category 7: Frontend / User Interface

| ADR                                                                      | Title                | Status   | Effort | Notes                                       |
| ------------------------------------------------------------------------ | -------------------- | -------- | ------ | ------------------------------------------- |
| [ADR-005](./0005-frontend-state-management-and-server-cache-strategy.md) | State Management     | Accepted | -      | Fully implemented                           |
| [ADR-012](./0012-frontend-component-library-and-design-system.md)        | Component Library    | Partial  | L      | Core components done, design tokens pending |
| [ADR-025](./0025-internationalization-and-localization-strategy.md)      | i18n & l10n          | Proposed | XL     | All UI strings need extraction              |
| [ADR-026](./0026-standardized-client-side-structured-logging.md)         | Client-Side Logging  | Accepted | -      | Fully implemented                           |
| [ADR-044](./0044-frontend-feature-organization.md)                       | Feature Organization | Accepted | -      | Fully implemented                           |

### Category 8: Development Workflow & Quality

| ADR                                                                           | Title                | Status   | Effort | Notes                |
| ----------------------------------------------------------------------------- | -------------------- | -------- | ------ | -------------------- |
| [ADR-010](./0010-testing-strategy-and-standards.md)                           | Testing Strategy     | Accepted | -      | Fully implemented    |
| [ADR-021](./0021-code-formatting-and-linting-unification.md)                  | Formatting & Linting | Accepted | -      | Fully implemented    |
| [ADR-027](./0027-standardized-naming-convention-for-ai-and-database-types.md) | Naming Conventions   | Accepted | -      | Fully implemented    |
| [ADR-040](./0040-testing-economics-and-priorities.md)                         | Testing Economics    | Accepted | -      | Fully implemented    |
| [ADR-045](./0045-test-data-factories-and-fixtures.md)                         | Test Data Factories  | Accepted | -      | Fully implemented    |
| [ADR-047](./0047-project-file-and-folder-organization.md)                     | Project Organization | Proposed | XL     | Major reorganization |
| [ADR-057](./0057-test-remediation-post-api-versioning.md)                     | Test Remediation     | Accepted | -      | Fully implemented    |

### Category 9: Architecture Patterns

| ADR                                                                   | Title                 | Status   | Effort | Notes                     |
| --------------------------------------------------------------------- | --------------------- | -------- | ------ | ------------------------- |
| [ADR-034](./0034-repository-pattern-standards.md)                     | Repository Pattern    | Accepted | -      | Fully implemented         |
| [ADR-035](./0035-service-layer-architecture.md)                       | Service Layer         | Accepted | -      | Fully implemented         |
| [ADR-036](./0036-event-bus-and-pub-sub-pattern.md)                    | Event Bus             | Accepted | -      | Fully implemented         |
| [ADR-039](./0039-dependency-injection-pattern.md)                     | Dependency Injection  | Accepted | -      | Fully implemented         |
| [ADR-041](./0041-ai-gemini-integration-architecture.md)               | AI/Gemini Integration | Accepted | -      | Fully implemented         |
| [ADR-042](./0042-email-and-notification-architecture.md)              | Email & Notifications | Accepted | -      | Fully implemented         |
| [ADR-043](./0043-express-middleware-pipeline.md)                      | Middleware Pipeline   | Accepted | -      | Fully implemented         |
| [ADR-046](./0046-image-processing-pipeline.md)                        | Image Processing      | Accepted | -      | Fully implemented         |
| [ADR-049](./0049-gamification-and-achievement-system.md)              | Gamification System   | Accepted | -      | Fully implemented         |
| [ADR-055](./0055-database-normalization-and-referential-integrity.md) | DB Normalization      | Accepted | M      | API uses IDs, not strings |

---

## Work Still To Be Completed (Priority Order)

These ADRs are proposed or partially implemented, ordered by suggested implementation priority:

| Priority | ADR     | Title                    | Status   | Effort | Rationale                            |
| -------- | ------- | ------------------------ | -------- | ------ | ------------------------------------ |
| 1        | ADR-054 | Bugsink-Gitea Sync       | Proposed | L      | Automated issue tracking from errors |
| 2        | ADR-023 | Schema Migrations v2     | Proposed | L      | Database evolution support           |
| 3        | ADR-029 | Secret Rotation          | Proposed | L      | Security improvement                 |
| 4        | ADR-030 | Circuit Breaker          | Proposed | L      | Resilience improvement               |
| 5        | ADR-056 | APM (Performance)        | Proposed | M      | Enable when performance issues arise |
| 6        | ADR-011 | Authorization & RBAC     | Proposed | XL     | Advanced permission system           |
| 7        | ADR-025 | i18n & l10n              | Proposed | XL     | Multi-language support               |
| 8        | ADR-031 | Data Retention & Privacy | Proposed | XL     | Compliance requirements              |

---

## Recent Implementation History

| Date       | ADR     | Change                                                                              |
| ---------- | ------- | ----------------------------------------------------------------------------------- |
| 2026-01-28 | ADR-024 | Fully implemented - Backend/frontend feature flags, 89 tests, admin endpoint        |
| 2026-01-28 | ADR-057 | Created - Test remediation documentation for ADR-008 Phase 2 migration              |
| 2026-01-28 | ADR-013 | Marked as Superseded by ADR-023                                                     |
| 2026-01-27 | ADR-008 | Test path migration complete - 23 files, ~70 paths updated, 274->345 tests passing  |
| 2026-01-27 | ADR-008 | Phase 2 Complete - Version router factory, deprecation headers, 82 versioning tests |
| 2026-01-26 | ADR-015 | Completed - Added Sentry user context in AuthProvider, now fully implemented        |
| 2026-01-26 | ADR-056 | Created - APM split from ADR-015, status Proposed (tracesSampleRate=0)              |
| 2026-01-26 | ADR-015 | Refactored to focus on error tracking only, temporarily status Partial              |
| 2026-01-26 | ADR-048 | Verified as fully implemented - JWT + OAuth authentication complete                 |
| 2026-01-26 | ADR-022 | Verified as fully implemented - WebSocket notifications complete                    |
| 2026-01-26 | ADR-052 | Marked as fully implemented - createScopedLogger complete                           |
| 2026-01-26 | ADR-053 | Marked as fully implemented - /health/queues endpoint complete                      |
| 2026-01-26 | ADR-050 | Marked as fully implemented - PostgreSQL function observability                     |
| 2026-01-26 | ADR-055 | Created (renumbered from duplicate ADR-023) - DB normalization                      |
| 2026-01-26 | ADR-054 | Added to tracker - Bugsink to Gitea issue synchronization                           |
| 2026-01-26 | ADR-053 | Added to tracker - Worker health checks and monitoring                              |
| 2026-01-26 | ADR-052 | Added to tracker - Granular debug logging strategy                                  |
| 2026-01-26 | ADR-051 | Added to tracker - Asynchronous context propagation                                 |
| 2026-01-26 | ADR-048 | Added to tracker - Authentication strategy                                          |
| 2026-01-26 | ADR-040 | Added to tracker - Testing economics and priorities                                 |
| 2026-01-17 | ADR-054 | Created - Bugsink-Gitea sync worker proposal                                        |
| 2026-01-11 | ADR-050 | Created - PostgreSQL function observability with fn_log()                           |
| 2026-01-11 | ADR-018 | Implemented - OpenAPI/Swagger documentation at /docs/api-docs                       |
| 2026-01-11 | ADR-049 | Created - Gamification system, achievements, and testing                            |
| 2026-01-09 | ADR-047 | Created - Project file/folder organization with migration plan                      |
| 2026-01-09 | ADR-041 | Created - AI/Gemini integration with model fallback                                 |
| 2026-01-09 | ADR-042 | Created - Email and notification architecture with BullMQ                           |
| 2026-01-09 | ADR-043 | Created - Express middleware pipeline ordering and patterns                         |
| 2026-01-09 | ADR-044 | Created - Frontend feature-based folder organization                                |
| 2026-01-09 | ADR-045 | Created - Test data factory pattern for mock generation                             |
| 2026-01-09 | ADR-046 | Created - Image processing pipeline with Sharp and EXIF stripping                   |
| 2026-01-09 | ADR-026 | Fully implemented - client-side structured logger                                   |
| 2026-01-09 | ADR-028 | Fully implemented - all routes, middleware, and tests updated                       |

---

## Notes

- **Effort estimates** are rough guidelines and may vary based on current codebase state
- **Dependencies** between ADRs should be considered when planning implementation order
- This document should be updated when ADRs are implemented or status changes
