Files
brewpi/client
jensandClaude Sonnet 4.6 57b86bc075 Make the Sud forecast piecewise, computed once per segment
Previously, the dynamic forecast's projected remainder was fully
recomputed on every step change, and a step requiring user
confirmation was simulated with zero added delay ("count it as
instant for estimation purposes"). Both undercut the actual goal of
the forecast: an honest comparison between real control behavior and
a simulation-based prediction. A forecast that keeps re-anchoring
itself to match reality isn't a useful baseline to compare reality
against, and assuming zero confirmation delay quietly understates the
schedule.

components/sud_forecast.py: SudForecastEstimator.estimate() now stops
simulating at the first step requiring user confirmation instead of
auto-confirming, returning the final SudState alongside the data so
the caller knows whether it stopped there or actually finished.

tasks/sud.py: SudTask now accumulates the forecast across piecewise
segments (forecast_t/forecast_theta). send_forecast() computes only
the first segment, at Load/Save. The real Confirm handler triggers
_continue_forecast_after_confirm(), which computes the next segment
anchored at the real elapsed time and real current temperature -
bridging the unforecastable wait with a flat segment rather than
guessing at its length - and sends the updated, stitched Forecast
(now carrying a Finished flag). The old per-step-change
RemainingForecast recompute is gone entirely, along with
remaining_schedule()/send_remaining_forecast().

client/brewpi_gui.py: SudForecastPlot redesigned around this - the
dashed line is the fixed, piecewise forecast (locked axes, untouched
except when a genuinely new segment arrives via show_forecast());
the solid line is purely the actual measured trace
(show_dynamic(), now only touching that). extend_forecast_while_
waiting() repeats the forecast's last value while the real Sud sits
in WAIT_USER, so the dashed line doesn't just stop, then snaps to the
new segment the moment the real confirmation appends one.

Verified via a raw-protocol test (segment boundaries, the Finished
flag, and real-time stitching across a confirm delay) and visually in
the GUI (locked dashed forecast, "X min so far total" title while
incomplete, solid/dashed comparison rendering with realistic
convergence/divergence).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LhiQe64F74uHV8jzuoSa5K
2026-06-22 16:33:40 +02:00
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