# Changelog

All notable changes to this project will be documented in this file.

The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

## [Unreleased]
### Added
- Added `StorageBackend` protocol/interface for backend-agnostic storage (#33)
- Added `health_check()` method to storage backend with `/health` endpoint integration (#33)
- Added `verify_integrity()` method for post-upload hash validation (#33)
- Added S3 configuration options: `s3_verify_ssl`, `s3_connect_timeout`, `s3_read_timeout`, `s3_max_retries` (#33)
- Added `S3StorageUnavailableError` and `HashCollisionError` exception types (#33)
- Added hash collision detection by comparing file sizes during deduplication (#33)
- Added garbage collection endpoint `POST /api/v1/admin/garbage-collect` for orphaned artifacts (#36)
- Added orphaned artifacts listing endpoint `GET /api/v1/admin/orphaned-artifacts` (#36)
- Added global storage statistics endpoint `GET /api/v1/stats` (#34)
- Added storage breakdown endpoint `GET /api/v1/stats/storage` (#34)
- Added deduplication metrics endpoint `GET /api/v1/stats/deduplication` (#34)
- Added per-project statistics endpoint `GET /api/v1/projects/{project}/stats` (#34)
- Added per-package statistics endpoint `GET /api/v1/project/{project}/packages/{package}/stats` (#34)
- Added per-artifact statistics endpoint `GET /api/v1/artifact/{id}/stats` (#34)
- Added cross-project deduplication endpoint `GET /api/v1/stats/cross-project` (#34)
- Added timeline statistics endpoint `GET /api/v1/stats/timeline` with daily/weekly/monthly periods (#34)
- Added stats export endpoint `GET /api/v1/stats/export` with JSON/CSV formats (#34)
- Added summary report endpoint `GET /api/v1/stats/report` with markdown/JSON formats (#34)
- Added Dashboard page at `/dashboard` with storage and deduplication visualizations (#34)
- Added pytest infrastructure with mock S3 client for unit testing (#35)
- Added unit tests for SHA256 hash calculation (#35)
- Added unit tests for duplicate detection and deduplication behavior (#35)
- Added integration tests for upload scenarios and ref_count management (#35)
- Added integration tests for S3 verification and failure cleanup (#35)
- Added integration tests for all stats endpoints (#35)
- Added integration tests for cascade deletion ref_count behavior (package/project delete) (#35)
- Added integration tests for tag update ref_count adjustments (#35)
- Added integration tests for garbage collection endpoints (#35)
- Added integration tests for file size validation (#35)
- Added test dependencies to requirements.txt (pytest, pytest-asyncio, pytest-cov, httpx, moto) (#35)
- Added `ORCHARD_MAX_FILE_SIZE` config option (default: 10GB) for upload size limits (#37)
- Added `ORCHARD_MIN_FILE_SIZE` config option (default: 1 byte, rejects empty files) (#37)
- Added file size validation to upload and resumable upload endpoints (#37)
- Added comprehensive deduplication design document (`docs/design/deduplication-design.md`) (#37)
### Fixed
- Fixed Helm chart `minio.ingress` conflicting with Bitnami MinIO subchart by renaming to `minioIngress` (#48)
- Fixed JSON report serialization error for Decimal types in `GET /api/v1/stats/report` (#34)
- Fixed resumable upload double-counting ref_count when tag provided (removed manual increment, SQL triggers handle it) (#35)

## [0.3.0] - 2025-12-15
### Changed
- Changed default download mode from `proxy` to `presigned` for better performance (#48)
### Added
- Added presigned URL support for direct S3 downloads (#48)
- Added `ORCHARD_DOWNLOAD_MODE` config option (`presigned`, `redirect`, `proxy`) (#48)
- Added `ORCHARD_PRESIGNED_URL_EXPIRY` config option (default: 3600 seconds) (#48)
- Added `?mode=` query parameter to override download mode per-request (#48)
- Added `/api/v1/project/{project}/{package}/+/{ref}/url` endpoint for getting presigned URLs (#48)
- Added `PresignedUrlResponse` schema with URL, expiry, checksums, and artifact metadata (#48)
- Added MinIO ingress support in Helm chart for presigned URL access (#48)
- Added `orchard.download.mode` and `orchard.download.presignedUrlExpiry` Helm values (#48)
- Added integrity verification workflow design document (#24)
- Added `sha256` field to API responses for clarity (alias of `id`) (#25)
- Added `checksum_sha1` field to artifacts table for compatibility (#25)
- Added `s3_etag` field to artifacts table for S3 verification (#25)
- Compute and store MD5, SHA1, and S3 ETag alongside SHA256 during upload (#25)
- Added `Dockerfile.local` and `docker-compose.local.yml` for local development (#25)
- Added migration script `003_checksum_fields.sql` for existing databases (#25)

## [0.2.0] - 2025-12-15
### Added
- Added `format` and `platform` fields to packages table (#16)
- Added `checksum_md5` and `metadata` JSONB fields to artifacts table (#16)
- Added `updated_at` field to tags table (#16)
- Added `tag_name`, `user_agent`, `duration_ms`, `deduplicated`, `checksum_verified` fields to uploads table (#16)
- Added `change_type` field to tag_history table (#16)
- Added composite indexes for common query patterns (#16)
- Added GIN indexes on JSONB fields for efficient JSON queries (#16)
- Added partial index for public projects (#16)
- Added database triggers for `updated_at` timestamps (#16)
- Added database triggers for maintaining artifact `ref_count` accuracy (#16)
- Added CHECK constraints for data integrity (`size > 0`, `ref_count >= 0`) (#16)
- Added migration script `002_schema_enhancements.sql` for existing databases (#16)
### Changed
- Updated images to use internal container BSF proxy (#46)

## [0.1.0] - 2025-12-12
### Added
- Added Prosper docker template config (#45)
### Changed
- Changed the Dockerfile npm build arg to use the deps.global.bsf.tools URL as the default registry (#45)