feat: add device support for T0x21 switch.

custom_components/midea_auto_cloud/switch.py

@@ -5,6 +5,7 @@ from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 
 from .const import DOMAIN
+from .core.logger import MideaLogger
 from .midea_entity import MideaEntity
 from . import load_device_config
 
@@ -43,6 +44,9 @@ class MideaSwitchEntity(MideaEntity, SwitchEntity):
     """Midea switch entity."""
 
     def __init__(self, coordinator, device, manufacturer, rationale, entity_key, config):
+        # 自动判断是否为中央空调设备（T0x21）
+        self._is_central_ac = device.device_type == 0x21
+        
         super().__init__(
             coordinator,
             device.device_id,
@@ -67,12 +71,37 @@ class MideaSwitchEntity(MideaEntity, SwitchEntity):
 
     async def async_turn_on(self):
         """Turn the switch on."""
-        # Use attribute from config if available, otherwise fall back to entity_key
         attribute = self._config.get("attribute", self._entity_key)
-        await self._async_set_status_on_off(attribute, True)
+        if self._is_central_ac:
+            await self._async_set_central_ac_switch_status(True)
+        else:
+            await self._async_set_status_on_off(attribute, True)
 
     async def async_turn_off(self):
         """Turn the switch off."""
-        # Use attribute from config if available, otherwise fall back to entity_key
         attribute = self._config.get("attribute", self._entity_key)
-        await self._async_set_status_on_off(attribute, False)
+        if self._is_central_ac:
+            await self._async_set_central_ac_switch_status(False)
+        else:
+            await self._async_set_status_on_off(attribute, False)
+
+    async def _async_set_central_ac_switch_status(self, is_on: bool):
+        """设置中央空调开关设备的状态"""
+        # 从entity_key中提取endpoint ID
+        # entity_key格式: endpoint_1_OnOff -> 提取出 1
+        endpoint_id = 1  # 默认值
+        if self._entity_key.startswith("endpoint_"):
+            try:
+                # 提取endpoint_后面的数字
+                parts = self._entity_key.split("_")
+                if len(parts) >= 2:
+                    endpoint_id = int(parts[1])
+            except (ValueError, IndexError):
+                MideaLogger.warning(f"Failed to extract endpoint ID from {self._entity_key}, using default 1")
+        
+        # 构建控制命令
+        control = {
+            "run_mode": "1" if is_on else "0",
+            "endpoint": endpoint_id
+        }
+        await self.coordinator.async_send_switch_control(control)