feat / AEB-64 create alert routes

backend/api/account/serializers/alert_serializers.py

@@ -0,0 +1,35 @@
+from rest_framework import serializers
+from drf_spectacular.utils import extend_schema_field
+from drf_spectacular.types import OpenApiTypes
+from typing import Optional
+from sitemanagement.models import Alert
+
+class AlertSerializer(serializers.ModelSerializer):
+    name = serializers.SerializerMethodField()
+    object = serializers.SerializerMethodField()
+    metric_value = serializers.SerializerMethodField()
+    sensor_type_name = serializers.SerializerMethodField()
+    
+    class Meta:
+        model = Alert
+        fields = ('id', 'name', 'object', 'metric_value', 'sensor_type_name', 'message', 'severity', 'created_at', 'resolved')
+
+    @extend_schema_field(OpenApiTypes.STR)
+    def get_name(self, obj) -> str:
+        return obj.sensor.name
+
+    @extend_schema_field(OpenApiTypes.STR)
+    def get_object(self, obj) -> Optional[str]:
+        zone = obj.sensor.zones.first()
+        return zone.object.title if zone else None
+        
+    @extend_schema_field(OpenApiTypes.STR)
+    def get_metric_value(self, obj) -> str:
+        if obj.metric.value is not None:
+            unit = obj.sensor.signal_format.unit if obj.sensor.signal_format else ''
+            return f"{obj.metric.value} {unit}".strip()
+        return obj.metric.raw_value
+        
+    @extend_schema_field(OpenApiTypes.STR)
+    def get_sensor_type_name(self, obj) -> str:
+        return obj.sensor_type.name