Mikkeli Matlock
d0427219a2
Phase 3 verified: 9/9 must-haves, 6/6 OVRL requirements satisfied. OverlayService wrapper, staleness detection, error surfacing all verified. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
122 lines
9.4 KiB
Markdown
122 lines
9.4 KiB
Markdown
---
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phase: 03-overlay-refactor
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verified: 2026-02-11T10:29:03Z
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status: passed
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score: 9/9 must-haves verified
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re_verification: false
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---
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# Phase 3: Overlay Refactor Verification Report
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**Phase Goal:** Fix overlay data staleness and communication reliability issues
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**Verified:** 2026-02-11T10:29:03Z
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**Status:** PASSED
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**Re-verification:** No - initial verification
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## Goal Achievement
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### Observable Truths
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| # | Truth | Status | Evidence |
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|---|-------|--------|----------|
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| 1 | Overlay receives continuous GPS updates without going stale | VERIFIED | OverlayProvider subscribes to GpsDataManager.dataStream and forwards every GPS tick via _pushDataToOverlay (lines 55-59) |
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| 2 | Overlay displays dashes when data is more than 10 seconds old (3s dim threshold) | VERIFIED | Staleness timer checks every 1s shows dashes after STALENESS_DASH_THRESHOLD (10s) dims at STALENESS_DIM_THRESHOLD (3s) using opacity |
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| 3 | Overlay creation failures surface to user via snackbar | VERIFIED | OverlayProvider calls onError callback on permission denial (line 82) and creation failure (line 112) SpeedometerScreen shows SnackBar (lines 91-97) |
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| 4 | OverlayService encapsulates all flutter_overlay_window platform calls | VERIFIED | All platform calls isolated in OverlayService OverlayProvider has zero direct FlutterOverlayWindow usage |
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| 5 | Heartbeat timer only runs when overlay active AND app backgrounded | VERIFIED | Timer checks both _isInBackground AND overlay.isOverlayActive (speedometer_screen.dart line 126) |
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| 6 | Overlay shows current speed and heading that matches main app display | VERIFIED | OverlayProvider pushes OverlayMessage.updateDisplay with speedText heading unitIndex themeIndex on every GPS tick and settings change |
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| 7 | Permission errors show snackbar with Settings action button | VERIFIED | _handleOverlayError creates SnackBarAction for OverlayError.permission that calls openAppSettings() (lines 78-81) |
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| 8 | Recovery from staleness is immediate snap-back (no animation) | VERIFIED | Staleness opacity applied directly via color.withValues(alpha:) no AnimatedOpacity used (overlay_screen.dart lines 173 188 216 229) |
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| 9 | GPS grace period timer (30s) created on overlay close | VERIFIED | _gracePeriodTimer starts on _handleOverlayClose (line 251) cancelled on showOverlay (line 74) |
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**Score:** 9/9 truths verified
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### Required Artifacts
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| Artifact | Expected | Status | Details |
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|----------|----------|--------|---------|
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| lib/services/overlay_service.dart | Platform channel wrapper with retry logic | VERIFIED | 97 lines methods: showOverlay closeOverlay shareData isActive overlayListener checkPermission. RetryOptions with 3 attempts and 200ms delay |
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| lib/models/overlay_message.dart | Timestamp field with serialization | VERIFIED | timestamp field (line 13) auto-populated in factories (lines 49 57 65) serialized as millisecondsSinceEpoch (line 80) deserialized with fallback (lines 96-98) |
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| lib/config/overlay_constants.dart | Staleness thresholds (3s dim 10s dash) | VERIFIED | STALENESS_DIM_THRESHOLD = 3s (line 39) STALENESS_DASH_THRESHOLD = 10s (line 42) STALENESS_DIM_OPACITY = 0.5 (line 45) STALENESS_CHECK_INTERVAL = 1s (line 48) |
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| lib/config/timing_constants.dart | GPS_GRACE_PERIOD constant | VERIFIED | GPS_GRACE_PERIOD = 30s (line 18) |
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| lib/providers/overlay_provider.dart | OverlayService integration with error callback | VERIFIED | OverlayService dependency (line 16) onError callback field (line 34) permission checks (line 79) verified creation (lines 105-114) grace period timer (lines 74 250-254) |
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| lib/screens/overlay_screen.dart | Staleness detection timer and UI | VERIFIED | _stalenessCheckTimer (line 27) _lastUpdateTime tracking (line 83) staleness monitoring (lines 105-116) opacity calculation (lines 125-127) opacity applied to all display elements |
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| lib/screens/speedometer_screen.dart | Error snackbar surfacing | VERIFIED | onError callback registration (line 35) _handleOverlayError method (lines 69-98) SnackBar with Settings action for permission errors |
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| lib/main.dart | OverlayService in provider tree | VERIFIED | OverlayService registered (line 20) injected into OverlayProvider constructor (line 28) |
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| pubspec.yaml | retry package dependency | VERIFIED | retry 3.1.2 present |
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### Key Link Verification
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| From | To | Via | Status | Details |
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|------|-----|-----|--------|---------|
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| OverlayProvider | OverlayService | Constructor injection all platform calls delegated | WIRED | _overlayService field (line 16) used in showOverlay (lines 79 94 105) closeOverlay (line 133) shareData (line 167) overlayListener (line 180) isActive (line 221) |
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| OverlayProvider | SpeedometerScreen | onError callback for snackbar surfacing | WIRED | onError field set by SpeedometerScreen (speedometer_screen.dart line 35) called on permission/creation errors (overlay_provider.dart lines 82 112) |
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| OverlayScreen | OverlayMessage.timestamp | Reads timestamp for staleness calculation | WIRED | _lastUpdateTime = message.timestamp (line 83) age calculated in staleness check (line 109) and build (line 125) |
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| OverlayScreen | OverlayConfig constants | Uses staleness thresholds for visual feedback | WIRED | STALENESS_CHECK_INTERVAL (line 106) STALENESS_DASH_THRESHOLD (line 110) STALENESS_DIM_THRESHOLD (line 126) STALENESS_DIM_OPACITY (line 127) |
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| main.dart | OverlayService | Provider registration and injection | WIRED | Provider OverlayService created (line 20) passed to OverlayProvider constructor (line 28) |
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| OverlayService | flutter_overlay_window | Platform channel delegation with retry | WIRED | showOverlay (lines 24 38) closeOverlay (line 57) shareData (line 71) isActive (line 81) overlayListener (line 90) |
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| OverlayService | retry package | RetryOptions for showOverlay closeOverlay | WIRED | RetryOptions configured (lines 10-12) used in showOverlay (line 22) and closeOverlay (line 55) |
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| GpsDataManager | OverlayProvider | Stream subscription for continuous updates | WIRED | _gpsSubscription listens to dataStream (line 55) calls _pushDataToOverlay on each tick (line 57) |
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### Requirements Coverage
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| Requirement | Status | Blocking Issue |
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|-------------|--------|----------------|
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| OVRL-01: Continuous debounced data updates | SATISFIED | GPS stream forwarded on every tick via _gpsSubscription.listen to _pushDataToOverlay |
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| OVRL-02: Overlay errors surfaced to user | SATISFIED | onError callback mechanism connects OverlayProvider to SpeedometerScreen for snackbar display |
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| OVRL-03: Overlay creation verified | SATISFIED | showOverlay checks return value from OverlayService (which calls isActive after platform showOverlay) |
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| OVRL-04: Messages include timestamp | SATISFIED | OverlayMessage.timestamp field auto-populated and serialized as millisecondsSinceEpoch |
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| OVRL-05: Overlay displays dashes when stale | SATISFIED | Staleness timer shows dashes after 10s (STALENESS_DASH_THRESHOLD) dims at 3s (STALENESS_DIM_THRESHOLD) |
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| OVRL-06: OverlayService encapsulates platform calls | SATISFIED | All FlutterOverlayWindow calls isolated in OverlayService zero direct usage in OverlayProvider |
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### Anti-Patterns Found
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| File | Line | Pattern | Severity | Impact |
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|------|------|---------|----------|--------|
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| lib/screens/overlay_screen.dart | 73 | Direct FlutterOverlayWindow.overlayListener usage in overlay isolate | Info | Expected - overlay screen runs in separate isolate and must use direct platform channel for receiving messages |
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| lib/screens/overlay_screen.dart | 257 268 | Direct FlutterOverlayWindow calls in long press handler | Info | Expected - overlay screen cannot use OverlayService (separate isolate) must use direct platform channel |
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**No blocker anti-patterns found.**
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### Human Verification Required
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**None required.** All success criteria are structurally verifiable through code analysis.
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Optional manual testing to confirm runtime behavior:
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1. Launch overlay - verify it appears and shows current speed/heading
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2. Close main app to background - verify overlay continues receiving GPS updates
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3. Wait 3 seconds without GPS movement - verify overlay dims speed display
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4. Wait 10 seconds without GPS movement - verify overlay shows dashes
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5. Move to trigger GPS update - verify overlay immediately shows new speed (no fade animation)
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6. Deny overlay permission - verify snackbar appears with Settings button
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7. Press Settings button - verify app settings page opens
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8. Close overlay while app backgrounded - verify GPS continues for 30 seconds (grace period)
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## Summary
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**Phase 3 goal ACHIEVED.**
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All 6 OVRL requirements satisfied:
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- OVRL-01: Continuous GPS updates via stream subscription
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- OVRL-02: Error surfacing via onError callback to SnackBar
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- OVRL-03: Verified overlay creation via isActive check
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- OVRL-04: Timestamp field in OverlayMessage
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- OVRL-05: Two-stage staleness (3s dim 10s dashes)
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- OVRL-06: OverlayService encapsulates all platform calls
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**Key improvements delivered:**
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1. Overlay communication is reliable (retry logic + verification)
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2. Staleness detection provides clear visual feedback
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3. Errors surface to user with actionable guidance
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4. GPS grace period infrastructure ready for Phase 4
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5. Clean separation of concerns (OverlayService isolates platform code)
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**No gaps no blockers ready to proceed to Phase 4.**
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**NOTE:** ROADMAP.md incorrectly states "2 seconds" for success criterion #2. The user explicitly decided on 3 seconds in CONTEXT.md and plan must-haves. Code correctly implements 3s dim / 10s dash thresholds per user decision.
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---
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*Verified: 2026-02-11T10:29:03Z*
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*Verifier: Claude (gsd-verifier)*
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