From 524809d77dddeae550bf25742fd4a80c45a5f721 Mon Sep 17 00:00:00 2001 From: Oleksandr Bezdieniezhnykh Date: Sun, 10 May 2026 14:48:33 +0300 Subject: [PATCH] [AZ-309] Close coupling refactor with FINAL_report MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Adds _docs/04_refactoring/02-coupling-refactoring/FINAL_report.md recording goal achievement, baseline-vs-final metrics, batch summaries, and lessons learned. Advances autodev state from Step 8 (Refactor) to Step 9 (New Task) — Phase A baseline setup is now complete; Phase B feature cycle starts on next invocation. Co-authored-by: Cursor --- .../02-coupling-refactoring/FINAL_report.md | 68 +++++++++++++++++++ _docs/_autodev_state.md | 10 +-- 2 files changed, 73 insertions(+), 5 deletions(-) create mode 100644 _docs/04_refactoring/02-coupling-refactoring/FINAL_report.md diff --git a/_docs/04_refactoring/02-coupling-refactoring/FINAL_report.md b/_docs/04_refactoring/02-coupling-refactoring/FINAL_report.md new file mode 100644 index 0000000..93884f3 --- /dev/null +++ b/_docs/04_refactoring/02-coupling-refactoring/FINAL_report.md @@ -0,0 +1,68 @@ +# Refactor 02-coupling-refactoring — FINAL Report + +**Mode**: automatic (user-confirmed scope at Phase 0) +**Input mode**: list-of-changes derived from architecture compliance baseline (F3 + F4) +**Date completed**: 2026-05-10 +**Phases executed**: 0 (Baseline) → 1 (List of Changes) → 2 (Analysis & Decomposition) → 3 (Safety Net) → 4 (Execution) → 5 (Test Sync, inline) → 6 (Verification) → 7 (Documentation) + +## Goal Achievement + +| Goal (Phase 0 §Goals) | Status | +|-----------------------|--------| +| 1. `Program.cs` tile endpoints route only through `ITileService` (no direct downloader/repository/cache injections) | Done — Batch 4 (AZ-310 + AZ-311) | +| 2. Three Services csprojs with explicit ProjectReference boundaries | Done — Batch 5 (AZ-312) | +| 3. Old `SatelliteProvider.Services.csproj` deleted | Done — Batch 5 | +| 4. Unit suite: 35/35 pass | Exceeded — 40/40 pass (5 new unit tests added in Batch 4) | +| 5. Integration smoke: passing <120s | Pass — full smoke suite green post-refactor | +| 6. Baseline F3 + F4 marked Resolved | Done — Batch 6 (AZ-315), `architecture_compliance_baseline.md` shows 0 findings | +| 7. `module-layout.md` updated | Done — Batch 6 (AZ-315) | + +## Baseline → Final Metrics + +| Metric | Baseline (Phase 0) | Final | Delta | +|--------|--------------------|-------|-------| +| Unit tests passing | 35/35 | 40/40 | +5 (AZ-310 cache hit, repo hit, downloader fallback; AZ-311 happy path, downloader-throws) | +| Integration smoke | 5 scenarios green in 111.86s | 5 scenarios green in ~118s | Within target | +| Build time (cold) | ~30s | ~48s (Release, sln, all projects) | +18s expected — three new csprojs each restore | +| Architecture findings (compliance baseline) | F1/F2/F3/F4/F5 (2 High, 2 Medium, 1 Low) | 0 | All five Resolved | +| Project count (.csproj total) | 6 | 8 (added Services.TileDownloader / .RegionProcessing / .RouteManagement, removed Services) | Net +2 | +| Coupling indicator: Layer-3 → Layer-3 ProjectReferences | implicit (single shared project) | 0 | Compiler-enforced sibling boundary | + +## Changes Summary + +| Batch | Phase | Tasks | Commit | Headline outcome | +|-------|-------|-------|--------|------------------| +| 4 | A — endpoint routing | AZ-310, AZ-311 | (parent of `8b0ddae`) | F3 resolved; tile endpoints thinned to `ITileService` calls; `TileBytes` DTO added; `IMemoryCache` ownership consolidated inside `TileService`. | +| 5 | B — project split | AZ-312, AZ-313, AZ-314 | `8b0ddae` | F4 resolved; `SatelliteProvider.Services` split into three per-component csprojs; `RateLimitException` relocated to `SatelliteProvider.Common.Exceptions` to keep sibling boundary clean; per-component DI extension methods. | +| 6 | C — docs | AZ-315 | `6b37308` | F5 resolved; module-layout.md / architecture.md / compliance baseline / per-component docs synced to the post-split layout. | + +Total: 6 tasks, 17 story points, 3 batches, all PASS verdicts in code review. + +## Remaining Items + +None for the original scope (F3, F4, F5 all resolved). + +Identified but explicitly out-of-scope (deferred to future cycles): +- Coverage tooling (Coverlet) is not yet wired into the project — Phase 0 noted this as a tooling gap, not a refactor blocker. +- F1 / F2 (originally High) were already resolved before this run (testability refactor). + +## Lessons Learned + +1. **Cross-component exceptions need a home in Common, not in the producer.** Defining `RateLimitException` in `GoogleMapsDownloaderV2.cs` was acceptable while everything lived in one csproj. The moment we split, the consumer (`RegionService` catching it) would have needed a `ProjectReference` back to TileDownloader — defeating the purpose of the split. Lesson: any exception type that crosses component boundaries must live in `SatelliteProvider.Common.Exceptions` from day one. +2. **DI extension methods scale better than inline `Program.cs` registration.** Once each csproj owns its `Add(this IServiceCollection)`, adding a new component becomes "register the project + call one method" instead of "find the right block in `Program.cs`, copy-paste a registration". +3. **Sibling components communicate through interfaces in the foundation layer, not through ProjectReferences to each other.** The split made this structural; before, it was a convention easily violated. +4. **Smoke integration is the right safety net for a structural refactor.** Unit tests caught the obvious (constructor signature mismatches, namespace renames). Smoke tests caught the non-obvious (DI graph wiring, hosted-service registration order, Dockerfile COPY paths). Running both at every batch boundary kept the regressions to zero. +5. **One in-batch surprise is normal; budget for it.** The `RateLimitException` discovery during Batch 5's build verification was unplanned but resolvable in <30 minutes. The phased approach (Phase A endpoint routing first, Phase B split second) made the surprise small instead of compound. + +## Phase 7 — Documentation Cross-References + +- `_docs/02_document/architecture.md` — components list + internal communication updated. +- `_docs/02_document/module-layout.md` — three Layer-3 sections rewritten; allowed-dependencies table simplified; F5 invariant documented. +- `_docs/02_document/architecture_compliance_baseline.md` — F1..F5 statuses → Resolved; summary table now 0 findings post AZ-309. +- `_docs/02_document/diagrams/components.md` — component summary table updated; clarifying note on logical-vs-compile-time arrows. +- `_docs/02_document/components/03_tile_downloader/description.md` — csproj path + new ITileService methods. +- `_docs/02_document/modules/{common_interfaces, services_tile_service, services_google_maps_downloader, tests_unit}.md` — synced to new layout. + +## Verdict + +**Refactor 02-coupling-refactoring is complete.** All goals met or exceeded. No carry-over findings. No new findings introduced. Architecture compliance baseline closed. diff --git a/_docs/_autodev_state.md b/_docs/_autodev_state.md index 2f8fcc2..2680795 100644 --- a/_docs/_autodev_state.md +++ b/_docs/_autodev_state.md @@ -2,12 +2,12 @@ ## Current Step flow: existing-code -step: 8 -name: Refactor -status: in_progress +step: 9 +name: New Task +status: not_started sub_step: - phase: 7 - name: documentation + phase: 0 + name: awaiting-invocation detail: "" retry_count: 0 cycle: 1