vendor transformations separated

apps/abstraction/vendors/hottis_pv_modbus.py

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+"""Hottis PV Modbus vendor transformations."""
+
+import json
+import logging
+from typing import Any
+
+logger = logging.getLogger(__name__)
+
+
+def transform_relay_to_vendor(payload: dict[str, Any]) -> str:
+    """Transform abstract relay payload to Hottis Modbus format.
+    
+    Hottis Modbus expects plain text 'on' or 'off'.
+    
+    Example:
+    - Abstract: {'power': 'on'}
+    - Hottis Modbus: 'on'
+    """
+    power = payload.get("power", "off")
+    return power
+
+
+def transform_relay_to_abstract(payload: str) -> dict[str, Any]:
+    """Transform Hottis Modbus relay payload to abstract format.
+    
+    Hottis Modbus sends JSON like:
+    {"status": "Ok", "timestamp": "...", "state": false, "cnt": 528}
+    
+    Transformations:
+    - state: true  -> power: 'on'
+    - state: false -> power: 'off'
+    """
+    data = json.loads(payload)
+    state = data.get("state", False)
+    power = "on" if bool(state) else "off"
+    return {"power": power}
+
+
+def transform_three_phase_powermeter_to_vendor(payload: dict[str, Any]) -> str:
+    """Transform abstract three_phase_powermeter payload to hottis_pv_modbus format."""
+    vendor_payload = {
+        "energy": payload.get("energy", 0.0),
+        "total_power": payload.get("total_power", 0.0),
+        "phase1_power": payload.get("phase1_power", 0.0),
+        "phase2_power": payload.get("phase2_power", 0.0),
+        "phase3_power": payload.get("phase3_power", 0.0),
+        "phase1_voltage": payload.get("phase1_voltage", 0.0),
+        "phase2_voltage": payload.get("phase2_voltage", 0.0),
+        "phase3_voltage": payload.get("phase3_voltage", 0.0),
+        "phase1_current": payload.get("phase1_current", 0.0),
+        "phase2_current": payload.get("phase2_current", 0.0),
+        "phase3_current": payload.get("phase3_current", 0.0),
+    }
+    return json.dumps(vendor_payload)
+
+
+def transform_three_phase_powermeter_to_abstract(payload: str) -> dict[str, Any]:
+    """Transform hottis_pv_modbus three_phase_powermeter payload to abstract format.
+    
+    Transformations:
+    - totalImportEnergy        -> energy
+    - powerL1/powerL2/powerL3  -> phase1_power/phase2_power/phase3_power
+    - voltageL1/voltageL2/voltageL3 -> phase1_voltage/phase2_voltage/phase3_voltage
+    - currentL1/currentL2/currentL3 -> phase1_current/phase2_current/phase3_current
+    - Sum of powerL1..3        -> total_power
+    """
+    data = json.loads(payload)
+
+    def _get_float(key: str, default: float = 0.0) -> float:
+        return float(data.get(key, default))
+
+    phase1_power = _get_float("powerL1")
+    phase2_power = _get_float("powerL2")
+    phase3_power = _get_float("powerL3")
+
+    phase1_voltage = _get_float("voltageL1")
+    phase2_voltage = _get_float("voltageL2")
+    phase3_voltage = _get_float("voltageL3")
+
+    phase1_current = _get_float("currentL1")
+    phase2_current = _get_float("currentL2")
+    phase3_current = _get_float("currentL3")
+
+    energy = _get_float("totalImportEnergy")
+
+    return {
+        "energy": energy,
+        "total_power": phase1_power + phase2_power + phase3_power,
+        "phase1_power": phase1_power,
+        "phase2_power": phase2_power,
+        "phase3_power": phase3_power,
+        "phase1_voltage": phase1_voltage,
+        "phase2_voltage": phase2_voltage,
+        "phase3_voltage": phase3_voltage,
+        "phase1_current": phase1_current,
+        "phase2_current": phase2_current,
+        "phase3_current": phase3_current,
+    }
+
+
+# Registry of handlers for this vendor
+HANDLERS = {
+    ("relay", "to_vendor"): transform_relay_to_vendor,
+    ("relay", "to_abstract"): transform_relay_to_abstract,
+    ("three_phase_powermeter", "to_vendor"): transform_three_phase_powermeter_to_vendor,
+    ("three_phase_powermeter", "to_abstract"): transform_three_phase_powermeter_to_abstract,
+}