#115 Tile 5: sound-balance sparkline from dotty-behaviour#120
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Projects sound_event balance values out of the per-device recent ring (oldest-first, non-numeric balances skipped). Backs the bridge dashboard's State-tile sparkline. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Replaces the empty-list stub with a live read against
/api/perception/sound-balance/{device_id}. Device picked from the
first key in the perception state snapshot (single-robot heuristic,
matches the other dashboard perception getters). Returns [] when no
device is known or the fetch fails — same circuit-breaker contract
as the other dotty-behaviour-backed getters.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This was referenced May 23, 2026
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Summary
Tile 5 of #115 — rewire the dashboard State-tile sound-balance sparkline to read live data from dotty-behaviour.
GET /api/perception/sound-balance/{device_id}?limit=30to dotty-behaviour. Projectsdata.balanceout of the per-device recent-events ring, filtering tosound_eventonly, oldest-first to match the sparkline's left-to-right time axis. Non-numeric/missing balances skipped._dashboard_sound_balance_series()in bridge.py now returns alist[float]from the new endpoint (same signature as before, just no longer stubbed empty). Goes through the existing_dotty_behaviour_gethelper so it shares the 1.5s timeout, 2s cache, and circuit-breaker fallback._dashboard_perception_state_getter()(single-robot heuristic). Matches what the other dotty-behaviour-backed getters do; mirroring the fancier_pick_perception_device_idin dashboard.py wasn't worth the cross-module dependency for a single-robot deployment. Returns[]cleanly when no device is known.Refs #115 (Tile 6 still pending).
Test plan
cd dotty-behaviour && ../.venv/bin/python -m pytest tests/ -q→ 211 passed (was 209).venv/bin/python -m pytest tests/ -q→ 76 passed (was 73)python -c "import bridge; from bridge.dashboard import *"cleansound_eventframes.🤖 Generated with Claude Code