From acfbeb85a2cc07e86c76280d0cd0eb9c36f91644 Mon Sep 17 00:00:00 2001 From: Mikkeli Matlock Date: Wed, 11 Feb 2026 19:16:21 +0900 Subject: [PATCH] docs(03-01): complete overlay foundation plan Tasks completed: 2/2 - Task 1: Create OverlayService and add retry dependency - Task 2: Add timestamp field to OverlayMessage model SUMMARY: .planning/phases/03-overlay-refactor/03-01-SUMMARY.md Co-Authored-By: Claude Opus 4.6 --- .planning/STATE.md | 54 ++-- .../03-overlay-refactor/03-01-SUMMARY.md | 255 ++++++++++++++++++ 2 files changed, 288 insertions(+), 21 deletions(-) create mode 100644 .planning/phases/03-overlay-refactor/03-01-SUMMARY.md diff --git a/.planning/STATE.md b/.planning/STATE.md index fa280de..0bd7a94 100644 --- a/.planning/STATE.md +++ b/.planning/STATE.md @@ -5,23 +5,23 @@ See: .planning/PROJECT.md (updated 2026-02-09) **Core value:** Reliable, lag-free GPS speed display that coexists politely with other Android apps -**Current focus:** Phase 2 - Provider Migration (COMPLETE) +**Current focus:** Phase 3 - Overlay Refactor (IN PROGRESS) ## Current Position -Phase: 2 of 4 (Provider Migration) -Plan: 2 of 2 complete -Status: Phase complete — ready for Phase 3 planning -Last activity: 2026-02-10 — Completed 02-02-PLAN.md +Phase: 3 of 4 (Overlay Refactor) +Plan: 1 of 2 complete +Status: In progress +Last activity: 2026-02-11 — Completed 03-01-PLAN.md -Progress: [███░░░░░░░] 50% (Phase 2: 2/2 plans) +Progress: [████░░░░░░] 55% (Phase 3: 1/2 plans) ## Performance Metrics **Velocity:** -- Total plans completed: 4 -- Average duration: 7.6 minutes -- Total execution time: 0.51 hours +- Total plans completed: 5 +- Average duration: 6.9 minutes +- Total execution time: 0.58 hours **By Phase:** @@ -29,10 +29,11 @@ Progress: [███░░░░░░░] 50% (Phase 2: 2/2 plans) |-------|-------|-------|----------| | 1. Foundation | 2 | 19.6 min | 9.8 min | | 2. Provider Migration | 2 | 11.5 min | 5.75 min | +| 3. Overlay Refactor | 1 | 4.0 min | 4.0 min | **Recent Trend:** -- Last 5 plans: 01-01 (12.8 min), 01-02 (6.8 min), 02-01 (7.7 min), 02-02 (3.8 min) -- Trend: Accelerating (50% faster on plan 4 vs plan 1) +- Last 5 plans: 01-02 (6.8 min), 02-01 (7.7 min), 02-02 (3.8 min), 03-01 (4.0 min) +- Trend: Continuing acceleration (4.0 min on latest plan) *Updated after each plan completion* @@ -60,6 +61,11 @@ Recent decisions affecting current work: | 02 | 02 | Speed Selector uses context.read() | Implemented | | 02 | 02 | Background heartbeat stays in screen (not provider) | Implemented | | 02 | 02 | _isInBackground direct assignment (no setState) | Implemented | +| 03 | 01 | OverlayService wraps all FlutterOverlayWindow calls | Implemented | +| 03 | 01 | showOverlay verifies with isActive() post-call | Implemented | +| 03 | 01 | shareData fire-and-forget (no retry, warn logging) | Implemented | +| 03 | 01 | Staleness thresholds: 3s dim, 10s dash | Implemented | +| 03 | 01 | Timestamp auto-populated in OverlayMessage factories | Implemented | | 04 | TBD | Speed-adaptive GPS precision (~10 km/h threshold) | Pending | | 04 | TBD | Background GPS only when overlay visible | Pending | @@ -78,8 +84,12 @@ Recent decisions affecting current work: - [ ] Manual testing: Settings persistence, theme/unit cycling, overlay toggle, background heartbeat - [ ] Manual testing: Verify no "setState after dispose" or "ChangeNotifier after dispose" errors -**Phase 3 Pending:** -- [ ] Plan Phase 3 (Overlay Refactor) next +**Phase 3 In Progress:** +- [x] 03-01 complete — Overlay foundation infrastructure (4.0 min) +- [x] OverlayService wrapper with retry logic created +- [x] OverlayMessage enhanced with timestamp tracking +- [x] Staleness constants and GPS grace period defined +- [ ] 03-02 next — Integrate OverlayService and staleness detection ### Blockers/Concerns @@ -96,11 +106,13 @@ Recent decisions affecting current work: - RESOLVED: Zero setState calls for shared state (theme, unit, GPS data, overlay status) - INFO: Manual testing needed to verify settings persistence and provider lifecycle -**Phase 3 (Overlay Refactor) — Next:** -- MEDIUM RISK: flutter_overlay_window 0.5.0 has known communication issues -- May need testing on multiple Android versions for reliability -- Overlay status polling alternative needs research (event-based vs 5s polling) -- Data staleness issue to fix (data stops updating after running for a while) +**Phase 3 (Overlay Refactor) — In Progress:** +- RESOLVED: OverlayService foundation complete with retry logic +- RESOLVED: Timestamp tracking in OverlayMessage for staleness detection +- RESOLVED: Staleness constants defined (3s dim, 10s dash, 30s GPS grace) +- MEDIUM RISK: flutter_overlay_window 0.5.0 has known communication issues (mitigated by retry + verification) +- INFO: Plan 03-02 will integrate OverlayService and implement staleness UI feedback +- INFO: Manual testing needed after 03-02 to verify overlay reliability improvements **Phase 4 (GPS Optimization):** - Speed thresholds (8/12 km/h) need field testing validation @@ -108,7 +120,7 @@ Recent decisions affecting current work: ## Session Continuity -Last session: 2026-02-10 (Plan 02-02 execution complete) -Stopped at: Completed 02-02-PLAN.md — Phase 2 complete +Last session: 2026-02-11 (Plan 03-01 execution complete) +Stopped at: Completed 03-01-PLAN.md — Phase 3 Plan 1 complete Resume file: None -Next action: Plan Phase 3 (Overlay Refactor) +Next action: Execute 03-02-PLAN.md (Overlay integration) diff --git a/.planning/phases/03-overlay-refactor/03-01-SUMMARY.md b/.planning/phases/03-overlay-refactor/03-01-SUMMARY.md new file mode 100644 index 0000000..a7b32d8 --- /dev/null +++ b/.planning/phases/03-overlay-refactor/03-01-SUMMARY.md @@ -0,0 +1,255 @@ +--- +phase: 03-overlay-refactor +plan: 01 +subsystem: overlay-infrastructure +tags: [service-layer, ipc, staleness-detection, retry-logic] + +requires: + - 02-02: Provider pattern infrastructure for overlay state management + +provides: + - OverlayService wrapper isolating all flutter_overlay_window platform calls + - Timestamp tracking in OverlayMessage for staleness detection + - Staleness threshold constants (3s dim, 10s dash) for UI feedback + - GPS grace period constant (30s) for background GPS lifecycle + +affects: + - 03-02: OverlayProvider will use OverlayService instead of direct FlutterOverlayWindow calls + - 03-02: Overlay screen will consume staleness constants for visual feedback + - 03-02: SpeedometerScreen will use GPS_GRACE_PERIOD for background GPS management + +tech-stack: + added: + - retry: ^3.1.2 + patterns: + - Service wrapper pattern for platform channel isolation + - Exponential backoff retry (3 attempts, 200ms delay factor) + - Fire-and-forget with warn-level logging for non-critical failures + - Timestamp-based staleness detection via millisecondsSinceEpoch serialization + +key-files: + created: + - lib/services/overlay_service.dart + modified: + - lib/models/overlay_message.dart + - lib/config/overlay_constants.dart + - lib/config/timing_constants.dart + - pubspec.yaml + +decisions: + - id: OVL-01 + choice: OverlayService wraps all FlutterOverlayWindow calls + rationale: Isolate platform-specific code, centralize retry logic and error handling + status: implemented + - id: OVL-02 + choice: showOverlay verifies overlay opened via isActive() call + rationale: Platform channel may succeed but overlay fail to appear - explicit verification required + status: implemented + - id: OVL-03 + choice: shareData is fire-and-forget with warn-level logging + rationale: User decision - send every GPS tick, staleness detection handles drops, no retry needed + status: implemented + - id: OVL-04 + choice: Staleness thresholds are 3s dim, 10s dash (NOT 2s/10s) + rationale: User specified 3 seconds for dim threshold in plan + status: implemented + - id: OVL-05 + choice: Timestamp auto-populated by DateTime.now() in factories + rationale: Timestamp is metadata, not user data - automatic population prevents caller errors + status: implemented + - id: OVL-06 + choice: Remove const from OverlayMessage constructors + rationale: DateTime.now() is runtime value, cannot be const - necessary for timestamp field + status: implemented + +metrics: + duration: 4.0 minutes + completed: 2026-02-11 +--- + +# Phase 03 Plan 01: Overlay Foundation Infrastructure Summary + +**One-liner:** OverlayService wrapper with retry logic, timestamp-enhanced OverlayMessage, and staleness constants (3s dim, 10s dash, 30s GPS grace period). + +## Objective Achieved + +Created the foundation building blocks for overlay refactor by: +1. Isolating all flutter_overlay_window platform calls behind OverlayService with retry logic +2. Adding timestamp tracking to OverlayMessage for staleness detection +3. Defining staleness thresholds (3s dim, 10s dash) and GPS grace period (30s) as named constants + +These components provide the service layer, enhanced model, and constants that Plan 02 will integrate into OverlayProvider, overlay screen, and SpeedometerScreen. + +## Tasks Completed + +| Task | Description | Commit | Files Modified | +|------|-------------|--------|----------------| +| 1 | Create OverlayService and add retry dependency | 505219c | overlay_service.dart, overlay_constants.dart, timing_constants.dart, pubspec.yaml | +| 2 | Add timestamp field to OverlayMessage model | 9e3decc | overlay_message.dart | + +## Implementation Details + +### OverlayService Architecture + +**Platform Channel Wrapper:** +- `showOverlay({width, height})` - Retry logic with post-verification via isActive() +- `closeOverlay()` - Retry logic for robust cleanup +- `shareData(Map)` - Fire-and-forget with warn-level logging (no retry) +- `isActive()` - Error-safe overlay status check +- `overlayListener` - Direct stream delegation +- `checkPermission()` - Permission status helper + +**Retry Configuration:** +- 3 attempts maximum +- 200ms delay factor (exponential backoff) +- Removed unnecessary `retryIf` checks (analyzer warnings fixed) + +**Error Handling Strategy:** +- showOverlay/closeOverlay: Logger.error after exhausted retries, return false +- shareData: Logger.warn on failure, no retry (staleness detection handles drops) +- isActive: Logger.error + return false on exception + +### OverlayMessage Enhancements + +**Timestamp Field:** +- Auto-populated via `DateTime.now()` in all factory constructors +- No manual timestamp passing required from callers +- Serialized as `millisecondsSinceEpoch` (int) in toMap() +- Deserialized with fallback to `DateTime.now()` in fromMap() for backward compatibility + +**Breaking Change Mitigation:** +- Removed `const` modifiers (DateTime.now() is runtime value) +- Added timestamp to copyWith() for completeness +- All existing factory APIs unchanged (timestamp is additive metadata) + +### Constants Configuration + +**Staleness Thresholds (overlay_constants.dart):** +- `STALENESS_DIM_THRESHOLD`: 3 seconds (dim speed display) +- `STALENESS_DASH_THRESHOLD`: 10 seconds (show dashes instead of speed) +- `STALENESS_DIM_OPACITY`: 0.5 (dimmed state opacity) +- `STALENESS_CHECK_INTERVAL`: 1 second (check frequency) + +**GPS Grace Period (timing_constants.dart):** +- `GPS_GRACE_PERIOD`: 30 seconds (continue GPS after overlay close when backgrounded) + +## Verification Results + +**flutter pub get:** +- retry package (^3.1.2) installed successfully +- All dependencies resolved + +**flutter analyze:** +- 26 info-level warnings (SCREAMING_SNAKE constants - expected per project convention) +- 0 errors or warnings in new code +- Fixed 2 unnecessary type check warnings in OverlayService retry logic + +**Code Quality:** +- OverlayService: 93 lines with comprehensive error handling +- OverlayMessage timestamp integration: 15 lines added across all methods +- All must-have requirements satisfied + +## Deviations from Plan + +None - plan executed exactly as written. + +## Decisions Made + +**OVL-01: Service Wrapper Pattern** +- All flutter_overlay_window calls isolated in OverlayService +- Benefits: Centralized retry logic, single error handling point, easier testing +- Impact: Plan 02 will migrate OverlayProvider to use OverlayService + +**OVL-02: Post-Verification in showOverlay** +- Added isActive() verification after FlutterOverlayWindow.showOverlay() completes +- Addresses: Platform channel may report success but overlay fails to appear +- Prevents: False positive overlay status in OverlayProvider + +**OVL-03: Fire-and-Forget shareData** +- No retry logic for data sharing (user decision: forward every tick) +- Staleness detection handles dropped messages via timestamp tracking +- Warn-level logging prevents error log noise from expected occasional failures + +**OVL-04: Staleness Timing** +- 3 seconds for dim (NOT 2 seconds as in some research notes) +- 10 seconds for dashes (consistent across all references) +- User explicitly specified 3s in plan MUST_HAVES + +**OVL-05: Automatic Timestamp Population** +- DateTime.now() called in factory constructors, not passed by callers +- Prevents caller errors (forgetting timestamp, using wrong time source) +- Ensures consistency (all timestamps from same clock source) + +**OVL-06: Remove const Modifiers** +- Required to allow DateTime.now() runtime values +- Trade-off: Lose compile-time const optimization for timestamp functionality +- Impact: Negligible (OverlayMessage instances are short-lived IPC data) + +## Technical Debt + +**None identified.** + +All code follows project conventions: +- SCREAMING_SNAKE for behavioral constants +- Logger with caller tags for all logging +- Error handling with graceful degradation +- Type-safe OverlayMessage serialization + +## Integration Readiness + +**Ready for Plan 02:** +- OverlayService provides all needed platform operations +- OverlayMessage timestamp field ready for staleness calculation +- Constants defined and accessible for UI feedback logic + +**Migration Path for Plan 02:** +1. Replace FlutterOverlayWindow.showOverlay in OverlayProvider with OverlayService.showOverlay +2. Replace FlutterOverlayWindow.closeOverlay with OverlayService.closeOverlay +3. Replace FlutterOverlayWindow.shareData with OverlayService.shareData +4. Add staleness detection timer in overlay screen using STALENESS_CHECK_INTERVAL +5. Implement dim/dash logic using STALENESS_DIM_THRESHOLD and STALENESS_DASH_THRESHOLD +6. Add GPS grace period logic in SpeedometerScreen using GPS_GRACE_PERIOD + +## Artifacts Generated + +**Service Layer:** +- `lib/services/overlay_service.dart` (93 lines) + +**Enhanced Model:** +- `lib/models/overlay_message.dart` (+18 lines, -3 lines) + +**Configuration:** +- `lib/config/overlay_constants.dart` (+12 lines) +- `lib/config/timing_constants.dart` (+3 lines) + +**Dependencies:** +- `pubspec.yaml` (+3 lines - retry package) + +## Next Steps + +Plan 02 will: +1. Integrate OverlayService into OverlayProvider +2. Add staleness detection timer and UI feedback in overlay screen +3. Implement GPS grace period logic in SpeedometerScreen +4. Replace all direct FlutterOverlayWindow calls with OverlayService methods + +**Estimated complexity:** Medium (refactor existing OverlayProvider and overlay screen) + +**Blockers:** None - all foundation infrastructure complete + +## Commits + +1. **505219c** - feat(03-01): create OverlayService and add retry dependency + - Added retry package (^3.1.2) + - Created OverlayService wrapper with showOverlay, closeOverlay, shareData, isActive, overlayListener, checkPermission + - Implemented 3-attempt retry with 200ms exponential backoff + - Added staleness constants: 3s dim, 10s dash, 0.5 opacity, 1s check interval + - Added GPS_GRACE_PERIOD constant (30 seconds) + +2. **9e3decc** - feat(03-01): add timestamp field to OverlayMessage model + - Added timestamp field with auto-population via DateTime.now() + - Updated all factory constructors (updateDisplay, longPressClose, overlayClosed) + - Serialized timestamp as millisecondsSinceEpoch in toMap() + - Deserialized with fallback to DateTime.now() in fromMap() + - Added timestamp parameter to copyWith() + - Removed const modifiers for runtime timestamp values