MIL-004: Step 3 - Flip the cards

Review record RC-026 (Go, autonomous mode, not independent). Task: MIL-004#1 Task: MIL-004#2 Task: MIL-004#3
2026-10-14 22:05:48 +08:00
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+# RC-026: Review of PY-MIL-004
+
+## Metadata
+| Key | Value |
+| --- | --- |
+| ID | RC-026 |
+| CrossReference | [PY-MIL-004], [QC-PY-001] |
+
+## Version History
+| Date | Status | Author | Reviewer | Change | Commit |
+| --- | --- | --- | --- | --- | --- |
+| 2026-10-14 | Accepted | Jens Tirsvad Nielsen | AI as stand-in for S01 | Initial version | pending |
+
+---
+
+## Artifact Under Review
+
+- Instance reviewed: [PY-MIL-004]
+- Checklist used: [QC-PY-001]
+- Scope: full review
+- Language and domain: n/a (technical type)
+- Language reviewer: none
+- Mode: autonomous, not independent (reviewer is `AI as stand-in for S01`)
+
+## Checklist Results
+
+| # | Criterion | Status | Evidence/Notes |
+| --- | --- | --- | --- |
+| 1 | Packages, modules, functions, variables, classes and constants follow PEP 8 casing (`snake_case`, `PascalCase`, `UPPER_SNAKE`) | Pass | PEP 8 casing holds; ruff rule set N passes. |
+| 2 | Names state purpose in the domain's language; no unexplained abbreviations, no single-letter names outside tiny scopes | Pass | Names are the assignment's (`flip_card`, `flip_timer`, `next_card`) and the IT terms of the dictionary; `Side` states its purpose. |
+| 3 | Code is produced by the project's formatter and passes its linter with no unexplained suppressions | Pass | `ruff check` and `ruff format --check` pass with no suppressions. |
+| 4 | Every function and method signature is type-annotated, including `-> None` | Pass | Every signature is annotated; `mypy --strict` passes on 31 source files. |
+| 5 | No bare `except:`, no swallowed exceptions; specific exceptions are raised and the cause is kept (`raise ... from`) | Pass | No exception handling was added; none is bare. |
+| 6 | No mutable default arguments and no shadowed builtins | Pass | No mutable defaults, no builtin shadowed. |
+| 7 | Files, locks and connections are managed with context managers | Pass | No file or connection is opened in this change. |
+| 8 | Public modules, classes and functions have docstrings that say what, not how | Pass | New and changed members have Doxygen docstrings; `doxygen Doxyfile` ends with 0 warnings. |
+| 9 | Logging uses `logging`, not `print`; no secrets or personal data in log output | Pass | No `print`; no logging needed. |
+| 10 | Classes and operations trace to the Design Class Diagram they implement; deviations are recorded | Pass | `Side`, `flip_card`, `flip_timer` and the view's timer follow DCD-001 and SD-001 (`flip_card` row of Method Traceability, timer step of SSD-001). |
+| 11 | Tests exist for new behaviour, are named for the behaviour, and do not depend on order or the network | Pass | 76 tests: view model sides, finished state, flip rules; e2e front and back state, recording scheduler, real 50 ms timer; no network, no order dependency (state reset in each test). |
+| 12 | Type checker runs in strict mode without errors; `Any` is justified in a comment | Pass | `mypy --strict` reports no issue; no `Any`. |
+| 13 | Dependencies are declared and pinned in the project's dependency file, none unused | Pass | `dependencies` stays empty. |
+| 14 | Each piece of knowledge (a business rule, constant, format, validation or query) is defined in one place; code is merged only where it expresses the same knowledge, not where it merely looks alike | Pass | The side rule exists once in the view model; image and colour names come from `constants.py`; `_show_card` is the only place that draws a card. |
+| 15 | Imports point inward: business-rule modules import no framework, database, UI or delivery-mechanism code, and there are no import cycles | Pass | `lint-imports` reports `Layers point inward` kept; the view model imports no Tkinter. |
+| 16 | SOLID holds: a class or module has one reason to change; new behaviour is added by extension, not by editing a type test in several places; subclasses honour the contract of their base; protocols are narrow; high-level code depends on protocols or abstract types and receives its implementations | Pass | The view model holds the side rule and the view only draws; a new side would extend `Side` and `_show_card`. |
+| 17 | Source is laid out in the layers and folders of the clean architecture folder structure (`domain`, `application`, `infrastructure`, `presentation` packages under `src/`, and `unit`, `integration` and `e2e` under `tests/`), in `snake_case`, and imports between the layers point inward | Pass | Files stay in `presentation/features/flash_card/`; tests in `unit` and `e2e`. |
+| 18 | File and folder names are English, contain no space and no character outside letters, digits, `-`, `_` and `.`, and follow the casing of the language for files | Pass | Names follow the rule; no new file contains a space. |
+
+## Overall Verdict
+
+Go — every Mandatory criterion passes. Reviewed by AI as stand-in for S01; not independent of the author.
+
+Milestone MIL-004 Go criteria: 1 `flip_card` changes side, language name and text (unit test); 2 `next_card` returns to the front (unit test); 3 `after(3000, flip_card)` is scheduled and the earlier id is cancelled first (recording scheduler e2e test); 4 back image and white text, front image and black text (e2e); 5 `PhotoImage` objects are attributes created in `__init__`, none in a callback (grep); 6 this record, `pytest` 76 passed. A manual run with a 100 ms delay showed `Danish` and white text. All Go.
+
+## Action Items
+
+| Action | Owner | Due |
+| --- | --- | --- |
+| none | - | - |
+
+---
+
+[PY-MIL-004]: ../../../src/flash_card/presentation
+[QC-PY-001]: ../../../framework/qc/code/qc-programming-python.md