Add Trio smoothed BG display option#648
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May 9, 2026
aug0211
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- Adds Display Smoothed BG toggle in Settings → Advanced (off by default).
- Pulls smoothed values from Nightscout devicestatus openaps.enacted.bg / openaps.suggested.bg and stores an in-memory history bounded by the graph's day range.
- Renders smoothed values as a light-grey line on the main BG chart; CGM dots stay colorful, but the dot-connecting line is hidden while smoothing is on. Display Dots / Display Lines toggles are disabled in Graph Settings during this mode.
- Chart-tap popup shows the smoothed value (✨ … ✨) above the raw CGM value when a match is available within tolerance of the dot's timestamp.
- All work (fetches, parsing, polling) is gated on the toggle so users who don't enable it incur no extra overhead.
- Add the option for users to display the smoothed value in the information display table as well.
- Adds Display Smoothed BG toggle in Settings → Advanced (off by default). - Pulls smoothed values from Nightscout devicestatus openaps.enacted.bg / openaps.suggested.bg and stores an in-memory history bounded by the graph's day range. - Renders smoothed values as a light-grey line on the main BG chart; CGM dots stay colorful, but the dot-connecting line is hidden while smoothing is on. Display Dots / Display Lines toggles are disabled in Graph Settings during this mode. - Chart-tap popup shows the smoothed value (✨ … ✨) above the raw CGM value when a match is available within tolerance of the dot's timestamp. - All work (fetches, parsing, polling) is gated on the toggle so users who don't enable it incur no extra overhead. - Add the option for users to display the smoothed value in the information display table as well.
- When the latest Nightscout devicestatus record is "thin" (e.g. SMB-only notifications or partial loop runs that Trio sometimes writes between full-state runs), its enactedOrSuggested block lacks timestamp / bg / TDD, leaving the Updated, TDD, and Smoothed BG info-table rows empty - Add .smoothedBg to the per-update clear list in updateDeviceStatusDisplay so it's blanked alongside Updated and TDD on every refresh: no stale value persists past a sparse fetch - Detect a sparse record by snapshotting Observable.shared.enactedOrSuggested.value before processing and comparing after; the OpenAPS parser only updates that Observable when the timestamp parses, so an unchanged value signals a sparse record. - Extend the devicestatus fast-poll override so it fires on sparse records too. Same backoff as the smoothed-line retry: 3s while the latest BG is under 60s old, 15s out to 5 minutes, then fall back to the normal cadence. No count > 1 fetch, no historical fallback, just keep polling for the next full record.
- The Smoothed BG feature added a chart dataset that contributes ~280 entries per downloadDays day, pushing the chart's total data.entryCount from ~600 to ~880 with smoothing on (1-day default). - DGCharts gates value-label rendering on data.entryCount < maxVisibleCount × scaleX. With the library default of 100, the 3h zoom (scaleX = 8, cap 800) no longer cleared the new total, so bolus / carb / SMB value labels stopped appearing at 3h. - Set BGChart.maxVisibleCount = 150 so the threshold accommodates the extra entries while keeping ≥6h zooms hiding values, matching the prior behavior in both smoothing-on and smoothing-off states.
- Fix a cold-launch race condition where the sparse-record fast-poll would silently skip
Collaborator
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Good idea to bring this in for LF x Trio. |
- Bug: Updated, TDD, and Smoothed BG rows showed blank or stale values. - Cause: parser picked just one of openaps.suggested / openaps.enacted (preferred suggested via ??), but Trio splits each loop's data across both blocks. suggested has fresh bg / IOB / COB / ISF / CR but no timestamp or TDD; enacted has timestamp and TDD but can linger at a previous loop's values. - Fix: merge both blocks with suggested winning on conflicts (latest loop's values), fall back to the record's outer created_at for the Updated timestamp, and switch to NightscoutUtils.parseDate so trailing Z / fractional seconds parse cleanly.
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