HomeAssistantVS/.session_nest_snapshot_20260729.md

Nest Snapshot Session — July 29, 2026

Goal

Capture still images from Nest cameras (Google Nest SDM API) for AI (Ollama) analysis.

What Was Built (Previous Session)

Custom integration nest_snapshot at /homeassistant/custom_components/nest_snapshot/:

• manifest.json, services.yaml, __init__.py
• Uses WebRTC (aiortc) to grab one video frame → saves as JPEG
• Test automation automation.test_nest_snapshot_capture

What Was Fixed (This Session)

Bug: Nest integration data not available for camera.front_door_front_door

Root cause: The integration was written for an older Nest SDM API. In HA 2026.7:

1. Nest stores runtime data in entry.runtime_data (a NestData dataclass), not in hass.data["nest"]
2. Camera entity unique_id has a -camera suffix, but device_manager.devices is keyed by the raw Google device name

Changes in __init__.py:

• Line 69: Replaced hass.data.get(NEST_DOMAIN, {}).get(config_entry_id) with config_entry.runtime_data
• Lines 78-81: Added -camera suffix stripping before device_manager lookup

SDP candidate fix (round 3)

• Added re import
• Added _sanitize_sdp() — inserts missing 1 component ID before udp in ICE candidate lines
• Applied _sanitize_sdp() to stream.answer_sdp before setRemoteDescription
• Still pending: restart + test

To Resume Testing

1. Trigger automation automation.test_nest_snapshot_capture or call nest_snapshot.capture on camera.front_door_front_door
2. Check /media/ for output file (>10 KB = success, ~1-2 KB = placeholder)