feat(notifications): Phase 2.6 NWS adapter pipeline integration

Wires the NWS adapter to the new notification pipeline via EventBus:

- Added fine-grained weather categories: weather_watch, weather_advisory,
  weather_statement (all routine severity) alongside existing weather_warning
- NWSAlertsAdapter._derive_category() maps NWS event type suffix to category:
  "Warning" -> weather_warning, "Watch" -> weather_watch, etc.
- NWSAlertsAdapter.to_event() converts internal event dict to pipeline Event
  with proper group_key (event_id) and inhibit_keys (Warning suppresses Watch)
- EnvironmentalStore accepts optional event_bus parameter
- EnvironmentalStore._ingest() emits new events to bus via _emit_event()
- 22 new tests in test_adapter_nws.py covering category derivation,
  severity mapping, and Event field population

All 119 tests pass.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

meshai/env/nws.py

@@ -4,10 +4,12 @@ import json
 import logging
 import time
 from datetime import datetime
-from typing import TYPE_CHECKING
+from typing import TYPE_CHECKING, Optional
 from urllib.error import HTTPError, URLError
 from urllib.request import Request, urlopen
 
+from meshai.notifications.events import Event, make_event
+
 if TYPE_CHECKING:
     from ..config import NWSConfig
 
@@ -39,6 +41,71 @@ class NWSAlertsAdapter:
         else:  # moderate, minor, unknown
             return "routine"
 
+    def _derive_category(self, event_type: str) -> str:
+        """Derive notification category from NWS event type suffix.
+
+        NWS event types like "Red Flag Warning", "Winter Storm Watch",
+        "Wind Advisory" map to our fine-grained weather categories.
+
+        Args:
+            event_type: NWS event type string (e.g., "Tornado Warning")
+
+        Returns:
+            Category key: weather_warning, weather_watch, weather_advisory,
+            or weather_statement
+        """
+        event_type_lower = event_type.lower()
+        if event_type_lower.endswith("warning"):
+            return "weather_warning"
+        elif event_type_lower.endswith("watch"):
+            return "weather_watch"
+        elif event_type_lower.endswith("advisory"):
+            return "weather_advisory"
+        else:
+            # Covers "Special Weather Statement", "Short Term Forecast", etc.
+            return "weather_statement"
+
+    def to_event(self, raw: dict) -> Event:
+        """Convert internal event dict to pipeline Event.
+
+        Args:
+            raw: Internal event dict from get_events()
+
+        Returns:
+            Event instance ready for EventBus emission
+        """
+        event_type = raw.get("event_type", "Unknown")
+        category = self._derive_category(event_type)
+        nws_severity = raw.get("severity", "unknown")
+        severity = self._map_nws_severity(nws_severity)
+
+        # Build group_key for dedup: same alert ID should merge
+        group_key = raw.get("event_id", "")
+
+        # Build inhibit_keys: a Warning supersedes Watch/Advisory for same hazard
+        inhibit_keys = []
+        if category == "weather_warning":
+            # Warning inhibits corresponding Watch/Advisory
+            base = event_type.rsplit(" ", 1)[0] if " " in event_type else event_type
+            inhibit_keys = [f"nws:{base} Watch", f"nws:{base} Advisory"]
+
+        return make_event(
+            source="nws",
+            category=category,
+            severity=severity,
+            title=raw.get("headline", event_type),
+            summary=raw.get("headline", ""),
+            body=raw.get("description", ""),
+            effective=raw.get("onset") or None,
+            expires=raw.get("expires") or None,
+            lat=raw.get("lat"),
+            lon=raw.get("lon"),
+            nws_zones=raw.get("areas", []),
+            group_key=group_key,
+            inhibit_keys=inhibit_keys,
+            data=raw,
+        )
+
     def tick(self) -> bool:
         """Execute one polling tick.
 

meshai/env/store.py

@@ -2,10 +2,11 @@
 
 import logging
 import time
-from typing import TYPE_CHECKING
+from typing import TYPE_CHECKING, Optional
 
 if TYPE_CHECKING:
     from ..config import EnvironmentalConfig
+    from ..notifications.pipeline import EventBus
 
 logger = logging.getLogger(__name__)
 
@@ -13,9 +14,15 @@ logger = logging.getLogger(__name__)
 class EnvironmentalStore:
     """Cache and tick-driver for all environmental feed adapters."""
 
-    def __init__(self, config: "EnvironmentalConfig", region_anchors: list = None):
+    def __init__(
+        self,
+        config: "EnvironmentalConfig",
+        region_anchors: list = None,
+        event_bus: Optional["EventBus"] = None,
+    ):
         self._adapters = {}  # name -> adapter instance
         self._events = {}  # (source, event_id) -> event dict
+        self._event_bus = event_bus  # Pipeline EventBus for emission
         self._swpc_status = {}  # Kp/SFI/scales snapshot
         self._ducting_status = {}  # tropo ducting assessment
         self._mesh_zones = config.nws_zones or []
@@ -87,12 +94,29 @@ class EnvironmentalStore:
             self._swpc_status = adapter.get_status()
             # Also ingest any alert events (R-scale >= 3)
             for evt in adapter.get_events():
-                self._events[(evt["source"], evt["event_id"])] = evt
+                key = (evt["source"], evt["event_id"])
+                is_new = key not in self._events
+                self._events[key] = evt
+                if is_new and self._event_bus and hasattr(adapter, "to_event"):
+                    self._emit_event(adapter, evt)
         elif name == "ducting":
             self._ducting_status = adapter.get_status()
         else:
             for evt in adapter.get_events():
-                self._events[(evt["source"], evt["event_id"])] = evt
+                key = (evt["source"], evt["event_id"])
+                is_new = key not in self._events
+                self._events[key] = evt
+                if is_new and self._event_bus and hasattr(adapter, "to_event"):
+                    self._emit_event(adapter, evt)
+
+    def _emit_event(self, adapter, raw_evt: dict):
+        """Convert raw event to pipeline Event and emit to bus."""
+        try:
+            event = adapter.to_event(raw_evt)
+            self._event_bus.emit(event)
+            logger.debug("Emitted %s event %s to pipeline", event.source, event.id)
+        except Exception as e:
+            logger.warning("Failed to emit event to pipeline: %s", e)
 
     def _purge_expired(self):
         """Remove expired events."""

meshai/notifications/categories.py

@@ -174,12 +174,33 @@ ALERT_CATEGORIES = {
 
     # Environmental - Weather
     "weather_warning": {
-        "name": "Severe Weather",
+        "name": "Severe Weather Warning",
-        "description": "NWS warning or advisory affecting your mesh area",
+        "description": "NWS Warning affecting your mesh area — highest urgency weather alert",
         "default_severity": "priority",
         "example_message": "⚠ Red Flag Warning — Twin Falls, Cassia counties. Gusty winds, low humidity. Until May 13 04:00Z",
         "toggle": "weather",
     },
+    "weather_watch": {
+        "name": "Weather Watch",
+        "description": "NWS Watch affecting your mesh area — conditions favorable for hazardous weather",
+        "default_severity": "routine",
+        "example_message": "⏳ Winter Storm Watch — Wood River Valley. Heavy snow possible Thu night through Fri.",
+        "toggle": "weather",
+    },
+    "weather_advisory": {
+        "name": "Weather Advisory",
+        "description": "NWS Advisory affecting your mesh area — weather may cause inconvenience",
+        "default_severity": "routine",
+        "example_message": "ℹ Wind Advisory — Magic Valley. SW winds 25-35 mph with gusts to 50 mph.",
+        "toggle": "weather",
+    },
+    "weather_statement": {
+        "name": "Weather Statement",
+        "description": "NWS Special Weather Statement — general awareness, no specific hazard",
+        "default_severity": "routine",
+        "example_message": "📋 Special Weather Statement — Isolated thunderstorms possible this afternoon.",
+        "toggle": "weather",
+    },
 
     # Environmental - Space Weather
     "hf_blackout": {

tests/test_adapter_nws.py

@@ -0,0 +1,277 @@
+"""Tests for NWS adapter Phase 2.6 — to_event() and _derive_category()."""
+
+import time
+from unittest.mock import MagicMock, patch
+
+import pytest
+
+from meshai.env.nws import NWSAlertsAdapter
+from meshai.notifications.events import Event
+
+
+# ============================================================
+# FIXTURES
+# ============================================================
+
+@pytest.fixture
+def mock_config():
+    """Create a mock NWSConfig."""
+    config = MagicMock()
+    config.areas = ["ID"]
+    config.user_agent = "(test, test@example.com)"
+    config.severity_min = "moderate"
+    config.tick_seconds = 60
+    return config
+
+
+@pytest.fixture
+def adapter(mock_config):
+    """Create an NWSAlertsAdapter with mocked config."""
+    return NWSAlertsAdapter(mock_config)
+
+
+# ============================================================
+# _derive_category TESTS
+# ============================================================
+
+def test_derive_category_warning(adapter):
+    """Warning suffix maps to weather_warning."""
+    assert adapter._derive_category("Tornado Warning") == "weather_warning"
+    assert adapter._derive_category("Red Flag Warning") == "weather_warning"
+    assert adapter._derive_category("Winter Storm Warning") == "weather_warning"
+
+
+def test_derive_category_watch(adapter):
+    """Watch suffix maps to weather_watch."""
+    assert adapter._derive_category("Tornado Watch") == "weather_watch"
+    assert adapter._derive_category("Winter Storm Watch") == "weather_watch"
+    assert adapter._derive_category("Fire Weather Watch") == "weather_watch"
+
+
+def test_derive_category_advisory(adapter):
+    """Advisory suffix maps to weather_advisory."""
+    assert adapter._derive_category("Wind Advisory") == "weather_advisory"
+    assert adapter._derive_category("Heat Advisory") == "weather_advisory"
+    assert adapter._derive_category("Frost Advisory") == "weather_advisory"
+
+
+def test_derive_category_statement(adapter):
+    """Non-standard suffixes map to weather_statement."""
+    assert adapter._derive_category("Special Weather Statement") == "weather_statement"
+    assert adapter._derive_category("Short Term Forecast") == "weather_statement"
+    assert adapter._derive_category("Hazardous Weather Outlook") == "weather_statement"
+
+
+def test_derive_category_case_insensitive(adapter):
+    """Category derivation is case-insensitive."""
+    assert adapter._derive_category("TORNADO WARNING") == "weather_warning"
+    assert adapter._derive_category("winter storm watch") == "weather_watch"
+    assert adapter._derive_category("Wind ADVISORY") == "weather_advisory"
+
+
+# ============================================================
+# to_event TESTS
+# ============================================================
+
+def test_to_event_returns_event_instance(adapter):
+    """to_event returns an Event instance."""
+    raw = {
+        "source": "nws",
+        "event_id": "urn:oid:2.49.0.1.840.0.abc123",
+        "event_type": "Tornado Warning",
+        "severity": "extreme",
+        "headline": "Tornado Warning issued for Ada County",
+        "description": "A tornado warning has been issued...",
+        "onset": time.time(),
+        "expires": time.time() + 3600,
+        "areas": ["IDZ016"],
+        "lat": 43.615,
+        "lon": -116.2023,
+    }
+    event = adapter.to_event(raw)
+    assert isinstance(event, Event)
+
+
+def test_to_event_sets_source_nws(adapter):
+    """to_event sets source to 'nws'."""
+    raw = {
+        "source": "nws",
+        "event_id": "test-id",
+        "event_type": "Wind Advisory",
+        "severity": "moderate",
+        "headline": "Wind Advisory",
+    }
+    event = adapter.to_event(raw)
+    assert event.source == "nws"
+
+
+def test_to_event_derives_category_from_event_type(adapter):
+    """to_event uses _derive_category for category field."""
+    raw = {
+        "event_id": "test",
+        "event_type": "Winter Storm Watch",
+        "severity": "severe",
+        "headline": "Winter Storm Watch",
+    }
+    event = adapter.to_event(raw)
+    assert event.category == "weather_watch"
+
+
+def test_to_event_maps_severity(adapter):
+    """to_event maps NWS severity to 3-level system."""
+    # Extreme -> immediate
+    raw = {"event_id": "1", "event_type": "Tornado Warning", "severity": "extreme", "headline": "test"}
+    assert adapter.to_event(raw).severity == "immediate"
+
+    # Severe -> priority
+    raw = {"event_id": "2", "event_type": "Tornado Warning", "severity": "severe", "headline": "test"}
+    assert adapter.to_event(raw).severity == "priority"
+
+    # Moderate -> routine
+    raw = {"event_id": "3", "event_type": "Wind Advisory", "severity": "moderate", "headline": "test"}
+    assert adapter.to_event(raw).severity == "routine"
+
+
+def test_to_event_sets_title_from_headline(adapter):
+    """to_event uses headline as title."""
+    raw = {
+        "event_id": "test",
+        "event_type": "Heat Advisory",
+        "severity": "moderate",
+        "headline": "Heat Advisory issued for Magic Valley",
+    }
+    event = adapter.to_event(raw)
+    assert event.title == "Heat Advisory issued for Magic Valley"
+
+
+def test_to_event_sets_body_from_description(adapter):
+    """to_event uses description as body."""
+    raw = {
+        "event_id": "test",
+        "event_type": "Heat Advisory",
+        "severity": "moderate",
+        "headline": "Heat Advisory",
+        "description": "Dangerously hot conditions expected...",
+    }
+    event = adapter.to_event(raw)
+    assert event.body == "Dangerously hot conditions expected..."
+
+
+def test_to_event_sets_effective_and_expires(adapter):
+    """to_event sets effective and expires from onset/expires."""
+    onset = time.time()
+    expires = time.time() + 7200
+    raw = {
+        "event_id": "test",
+        "event_type": "Wind Advisory",
+        "severity": "moderate",
+        "headline": "Wind Advisory",
+        "onset": onset,
+        "expires": expires,
+    }
+    event = adapter.to_event(raw)
+    assert event.effective == onset
+    assert event.expires == expires
+
+
+def test_to_event_sets_lat_lon(adapter):
+    """to_event sets lat/lon from raw event."""
+    raw = {
+        "event_id": "test",
+        "event_type": "Tornado Warning",
+        "severity": "extreme",
+        "headline": "Tornado Warning",
+        "lat": 43.615,
+        "lon": -116.2023,
+    }
+    event = adapter.to_event(raw)
+    assert event.lat == 43.615
+    assert event.lon == -116.2023
+
+
+def test_to_event_sets_nws_zones(adapter):
+    """to_event sets nws_zones from areas."""
+    raw = {
+        "event_id": "test",
+        "event_type": "Red Flag Warning",
+        "severity": "severe",
+        "headline": "Red Flag Warning",
+        "areas": ["IDZ016", "IDZ030", "IDZ031"],
+    }
+    event = adapter.to_event(raw)
+    assert event.nws_zones == ["IDZ016", "IDZ030", "IDZ031"]
+
+
+def test_to_event_sets_group_key_from_event_id(adapter):
+    """to_event sets group_key to event_id for dedup."""
+    raw = {
+        "event_id": "urn:oid:2.49.0.1.840.0.abc123",
+        "event_type": "Tornado Warning",
+        "severity": "extreme",
+        "headline": "Tornado Warning",
+    }
+    event = adapter.to_event(raw)
+    assert event.group_key == "urn:oid:2.49.0.1.840.0.abc123"
+
+
+def test_to_event_warning_sets_inhibit_keys(adapter):
+    """Warnings set inhibit_keys for corresponding Watch/Advisory."""
+    raw = {
+        "event_id": "test",
+        "event_type": "Winter Storm Warning",
+        "severity": "severe",
+        "headline": "Winter Storm Warning",
+    }
+    event = adapter.to_event(raw)
+    assert "nws:Winter Storm Watch" in event.inhibit_keys
+    assert "nws:Winter Storm Advisory" in event.inhibit_keys
+
+
+def test_to_event_watch_no_inhibit_keys(adapter):
+    """Watches do not set inhibit_keys."""
+    raw = {
+        "event_id": "test",
+        "event_type": "Tornado Watch",
+        "severity": "moderate",
+        "headline": "Tornado Watch",
+    }
+    event = adapter.to_event(raw)
+    assert event.inhibit_keys == []
+
+
+def test_to_event_preserves_raw_in_data(adapter):
+    """to_event preserves raw event dict in data field."""
+    raw = {
+        "event_id": "test-123",
+        "event_type": "Wind Advisory",
+        "severity": "moderate",
+        "headline": "Wind Advisory",
+        "custom_field": "custom_value",
+    }
+    event = adapter.to_event(raw)
+    assert event.data == raw
+    assert event.data["custom_field"] == "custom_value"
+
+
+# ============================================================
+# INTEGRATION: _map_nws_severity
+# ============================================================
+
+def test_map_nws_severity_extreme_to_immediate(adapter):
+    """Extreme NWS severity maps to immediate."""
+    assert adapter._map_nws_severity("extreme") == "immediate"
+
+
+def test_map_nws_severity_severe_to_priority(adapter):
+    """Severe NWS severity maps to priority."""
+    assert adapter._map_nws_severity("severe") == "priority"
+
+
+def test_map_nws_severity_moderate_to_routine(adapter):
+    """Moderate NWS severity maps to routine."""
+    assert adapter._map_nws_severity("moderate") == "routine"
+
+
+def test_map_nws_severity_minor_to_routine(adapter):
+    """Minor NWS severity maps to routine."""
+    assert adapter._map_nws_severity("minor") == "routine"