Chrome 61 (Karoo WebView) cannot parse dynamic import() — a SyntaxError at
parse time prevents loadPyodide from ever being defined.
Fix: fetch pyodide.js as text, replace every import( with a __loadScript(
shim that uses <script> tag injection, then inject via Blob URL. The Blob
script is never pre-scanned for module syntax so the patch is invisible to
the parser.
Also: expose waitForEngine() from extractActivity so callers can await
engine readiness before batching files — manual scan now shows "Preparing
extraction engine…" instead of flooding with N individual failures.
Settings: watch directory field is hidden behind a warning if no instance
URL is saved yet, making the dependency explicit before the user sets a
path.
Import: runAutoScan silently skips (no errors) when instance URL is
missing; manualScan shows a single clear message instead of one failure
per file.
- useFocusEffect re-reads auto_import_path from DB every time the Import
tab is focused, so the scan button appears immediately after saving in
Settings (was broken by conditional hook call which violated Rules of
Hooks and never re-fired on setting changes)
- Nested inner try/catch isolates DocumentPicker.getDocumentAsync so
ActivityNotFoundException (Karoo has no DocumentsUI) shows a friendly
message instead of crashing the tab
- Settings watch-directory placeholder updated to /sdcard/FitFiles
Import screen:
- Add "Scan for new rides" button (green) when auto_import_path is set;
shows the configured path, lets user trigger manually in addition to
the automatic scan on app open.
- Detect ActivityNotFoundException from DocumentPicker (Karoo and other
stripped Android devices have no DocumentsUI app) and show a friendly
message directing users to set a Watch directory instead.
- "No new rides found" feedback when manual scan finds nothing.
Docs (docs/mobile-app.md):
- Phase 1 marked complete with implementation notes (wheel delivery,
timeseries workaround, source_path dedup).
- Phase 2 updated to reflect what is actually implemented (on-open scan,
not background task) vs what remains (true background polling).
- Batch import moved from Phase 5 todo to done.
- Data model updated with source_path column.
- Known gaps section revised to remove fixed stubs.
- New Karoo sideloading section with debuggableVariants and armeabi-v7a
troubleshooting notes.
- Import tab now accepts multiple files at once (DocumentPicker multiple:true),
processes them sequentially through Pyodide, and shows a summary with per-file
errors on completion.
- DB migration v2 adds source_path column (original filesystem path before copy)
and an index on it, enabling O(1) deduplication for watch-folder imports.
- On Android, if auto_import_path is set, the Import tab scans the directory on
mount and on AppState 'active' (app foreground), then automatically imports any
FIT files not yet in the DB. Designed for Karoo: finish a ride, open the app,
new files import without any manual steps.
- insertActivity now accepts optional source_path; both importBasJson and
importNativeFile pass it through (null for files picked via DocumentPicker,
real path for watch-folder files).
Diagnosed via on-device debug: build_timeseries produces 3271 points
correctly, but the installed wheel's write_activity has a silent
exception path that skips writing the timeseries file. The workaround
calls build_timeseries directly and writes the file if missing.
Also moves useTheme import to @/ThemeContext across all tab screens.
- theme.ts: useTheme() hook with race calendar (May–Sep windows),
auto-detects Giro/Tour/Vuelta by date; stores override in SQLite
- All screens (feed, import, activity, tab bar) now use accent/dim
from useTheme() instead of hardcoded #60a5fa
- Settings: Palette section with Auto/Default/Giro/Tour/Vuelta buttons
to override the auto-detected palette for testing
micropip requires the full PEP 427 wheel filename (name-version-py-abi-plat.whl)
— writing the file as bincio.whl caused InvalidWheelFilename. The wheel URL from
/api/wheel/version now provides the basename; it flows through fetchWheelBase64 →
extractFile → WebView where the file is written with the correct name and
_wheel_path is set as a Pyodide global before PY_INSTALL_WHEEL runs.
Layout fix: WebView as a sibling in the root layout breaks flex geometry even
with position:absolute. Moving it inside the Import tab screen (which Expo Router
keeps mounted after first visit) eliminates the issue entirely and restores the
original simple root layout.
micropip fix: blob: URLs are not a recognised scheme in micropip — they are parsed
as package requirement strings, producing InvalidRequirement. Write the wheel bytes
to Pyodide's Emscripten FS (/tmp/bincio.whl) and install via emfs:/// instead.
WKWebView blocks HTTP requests (ATS) even when NSAllowsLocalNetworking is set for
the app's own networking — so fetch(http://192.168.x.x/api/wheel/download) inside
the WebView always fails with 'Load failed' on iOS.
- extractActivity.ts: rename wheelUrl param to wheelBase64; WebView now receives
the wheel as pre-fetched base64 bytes rather than a URL to fetch itself
- PyodideWebView.tsx: decode wheelBase64 → Uint8Array → Blob → blob URL for
micropip.install; fix baseUrl '' → 'https://localhost' (null origin blocks fetch
on iOS)
- import.tsx: add fetchWheelBase64() that resolves the wheel URL via
/api/wheel/version then fetches with native networking (HTTP works); caches
result in memory so repeated imports in one session don't re-download
- extraction/PyodideWebView.tsx: hidden WebView (1×1 px, off-screen) that
bootstraps Pyodide v0.26.4 from jsDelivr CDN on app startup; loads lxml,
pyyaml, micropip, fitdecode, gpxpy automatically; installs the bincio wheel
lazily on the first extraction call via a blob URL (avoids startup delay)
- extraction/extractActivity.ts: typed bridge — extractFile(filename, base64,
wheelUrl, onStatus) injects JS into the WebView, tracks pending promises by
request ID, resolves with { id, detail, timeseries, geojson, sourceHash }
- app/_layout.tsx: mounts <PyodideWebView> outside SQLiteProvider at root so
the runtime warms up as soon as the app opens
- app/(tabs)/import.tsx: replaces the placeholder alert with real extraction;
reads files as base64, calls extractFile with a progress callback, stores
detail_json + timeseries_json + geojson + real SHA-256 source_hash; resolves
wheel URL via GET /api/wheel/version with fallback to /api/wheel/download;
falls back to bincio.org if no instance is configured
Davide Scaini