Phase 1: in-memory ConnectionManager viewport fan-out, 500ms map debounce, cachetools TTLCache, background masscan/ffmpeg, compose memory caps. Phase 2: PostGIS geofences + ST_Intersects alerts, Timescale 1-min CAGGs and timestamp playback, FIRMS/WFIGS x firefighting ADS-B within 20 miles. No Redis/Kafka/Celery.
136 lines
3.7 KiB
Python
136 lines
3.7 KiB
Python
"""Geofence hit detection and WS alert routing (no Redis)."""
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from __future__ import annotations
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import asyncio
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import geofence
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from geofence import (
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matching_geofences,
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point_in_geojson,
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validate_polygon_geojson,
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)
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from ws_manager import ConnectionManager
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NC_BOX = {
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"type": "Polygon",
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"coordinates": [[
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[-80.0, 35.0],
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[-78.0, 35.0],
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[-78.0, 36.0],
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[-80.0, 36.0],
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[-80.0, 35.0],
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]],
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}
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def test_point_inside_polygon_hits():
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assert point_in_geojson(-79.0, 35.5, NC_BOX) is True
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def test_point_outside_polygon_misses():
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assert point_in_geojson(-122.4, 37.7, NC_BOX) is False
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def test_validate_rejects_non_polygon():
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try:
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validate_polygon_geojson({"type": "Point", "coordinates": [-79.0, 35.5]})
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assert False, "expected ValueError"
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except ValueError:
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pass
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def test_matching_geofences_only_active_hits():
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fences = [
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{"id": "a", "name": "NC", "active": True, "geojson": NC_BOX},
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{"id": "b", "name": "off", "active": False, "geojson": NC_BOX},
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]
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hits = matching_geofences(-79.0, 35.5, fences)
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assert [h["id"] for h in hits] == ["a"]
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assert matching_geofences(-122.4, 37.7, fences) == []
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def test_geofence_alert_fans_out_only_to_viewport_clients():
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mgr = ConnectionManager()
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q_nc = mgr.register("nc")
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q_sf = mgr.register("sf")
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mgr.set_viewport("nc", (-80.0, 35.0, -78.0, 36.0))
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mgr.set_viewport("sf", (-123.0, 37.0, -121.0, 38.0))
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async def run():
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payload = {
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"geofence_id": "a",
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"geofence_name": "NC",
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"source_kind": "ais",
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"entity_id": "366123456",
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"lat": 35.5,
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"lon": -79.0,
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}
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n = await mgr.publish_point("geofence_alert", payload, lat=35.5, lon=-79.0)
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assert n == 1
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msg = q_nc.get_nowait()
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assert msg["type"] == "geofence_alert"
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assert msg["payload"]["entity_id"] == "366123456"
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assert q_sf.empty()
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asyncio.run(run())
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def test_record_and_notify_queries_postgis_when_cache_empty(monkeypatch):
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"""FIRMS ingest in the ingester has an empty in-process cache — still ST_Intersects."""
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import geofence
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geofence._cache.clear()
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geofence._recent_hits.clear()
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st_called = []
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async def fake_st(lon, lat):
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st_called.append((lon, lat))
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return [{
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"id": "11111111-1111-1111-1111-111111111111",
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"name": "NC",
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"geojson": NC_BOX,
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"active": True,
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}]
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monkeypatch.setattr(geofence, "st_intersects", fake_st)
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executed: list = []
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class FakeSession:
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async def execute(self, stmt, params=None):
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executed.append(params or {})
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return None
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async def commit(self):
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executed.append("commit")
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async def __aenter__(self):
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return self
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async def __aexit__(self, *a):
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return False
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monkeypatch.setattr(geofence, "async_session", FakeSession)
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async def run():
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from ws_manager import manager
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q = manager.register("nc")
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manager.set_viewport("nc", (-80.0, 35.0, -78.0, 36.0))
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n = await geofence.record_and_notify(
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source_kind="firms", entity_id="35.5,-79.0,N",
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lat=35.5, lon=-79.0, payload={"satellite": "N"},
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)
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msg = None if q.empty() else q.get_nowait()
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manager.unregister("nc")
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return n, msg
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n, msg = asyncio.run(run())
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assert st_called == [(-79.0, 35.5)]
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assert n == 1
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assert msg["type"] == "geofence_alert"
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assert msg["payload"]["source_kind"] == "firms"
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inserts = [p for p in executed if isinstance(p, dict)]
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assert inserts and inserts[0]["source_kind"] == "firms"
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assert "commit" in executed
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