UPDATE

device_hub/models.py

@@ -3,14 +3,32 @@ import uuid as uuid_lib
 from django.db import models
 
 
-class SensorCatalog(models.Model):
+class DeviceCatalog(models.Model):
+    OUTPUT_ONLY = "output_only"
+    INPUT_ONLY = "input_only"
+    DEVICE_COMMUNICATION_TYPES = [
+        (OUTPUT_ONLY, "Output Only"),
+        (INPUT_ONLY, "Input Only"),
+    ]
+
     uuid = models.UUIDField(default=uuid_lib.uuid4, unique=True, editable=False, db_index=True)
     code = models.CharField(max_length=255, unique=True, db_index=True)
     name = models.CharField(max_length=255, unique=True, db_index=True)
     description = models.TextField(blank=True, default="")
+    device_communication_type = models.CharField(
+        max_length=32,
+        choices=DEVICE_COMMUNICATION_TYPES,
+        default=OUTPUT_ONLY,
+        db_index=True,
+    )
     customizable_fields = models.JSONField(default=list, blank=True)
     supported_power_sources = models.JSONField(default=list, blank=True)
     returned_data_fields = models.JSONField(default=list, blank=True)
+    payload_mapping = models.JSONField(default=dict, blank=True)
+    display_schema = models.JSONField(default=dict, blank=True)
+    supported_widgets = models.JSONField(default=list, blank=True)
+    commands_schema = models.JSONField(default=list, blank=True)
+    capabilities = models.JSONField(default=list, blank=True)
     sample_payload = models.JSONField(default=dict, blank=True)
     is_active = models.BooleanField(default=True)
     created_at = models.DateTimeField(auto_now_add=True)
@@ -24,16 +42,21 @@ class SensorCatalog(models.Model):
         return self.name
 
 
-class FarmSensor(models.Model):
+class FarmDevice(models.Model):
     uuid = models.UUIDField(default=uuid_lib.uuid4, unique=True, editable=False, db_index=True)
     farm = models.ForeignKey("farm_hub.FarmHub", on_delete=models.CASCADE, related_name="sensors")
     sensor_catalog = models.ForeignKey(
-        SensorCatalog,
+        DeviceCatalog,
         on_delete=models.PROTECT,
-        related_name="farm_sensors",
+        related_name="farm_devices",
         null=True,
         blank=True,
     )
+    device_catalogs = models.ManyToManyField(
+        DeviceCatalog,
+        related_name="composite_farm_devices",
+        blank=True,
+    )
     physical_device_uuid = models.UUIDField(default=uuid_lib.uuid4, unique=True, db_index=True)
     name = models.CharField(max_length=255)
     sensor_type = models.CharField(max_length=255, blank=True, default="")
@@ -50,6 +73,23 @@ class FarmSensor(models.Model):
     def __str__(self):
         return f"{self.name} ({self.uuid})"
 
+    def get_device_catalogs(self):
+        catalogs = list(self.device_catalogs.all())
+        if catalogs:
+            return catalogs
+        if self.sensor_catalog_id:
+            return [self.sensor_catalog]
+        return []
+
+    def get_device_catalog_by_code(self, code):
+        if not code:
+            return None
+        normalized_code = str(code).strip().lower()
+        for catalog in self.get_device_catalogs():
+            if catalog.code.lower() == normalized_code:
+                return catalog
+        return None
+
 
 class SensorExternalRequestLog(models.Model):
     farm_uuid = models.UUIDField(db_index=True)
@@ -64,4 +104,3 @@ class SensorExternalRequestLog(models.Model):
 
     def __str__(self):
         return f"{self.physical_device_uuid}:{self.created_at.isoformat()}"
-