v0.8.20

src/engine/automations.rs

@@ -1,3 +1,16 @@
+
+pub fn automation_action_conflicts_with_thermostat(command: &DeviceCommand) -> bool {
+    // Power/mode/target are translated by apply_automatic_device_action into durable zone
+    // state, so they do not fight the thermostat. Fan/quiet/sleep are thermostat outputs with
+    // no independent zone override model; accepting them as one-shot direct automation would
+    // let the next thermostat cycle immediately overwrite them.
+    command.fan_speed.is_some() || command.quiet.is_some() || command.sleep.is_some()
+}
+
+fn device_has_enabled_thermostat_zone(device_id: &str, zones: &[Zone]) -> bool {
+    zones.iter().any(|zone| zone.device_id == device_id && zone.enabled)
+}
+
 async fn run_automations(state: &AppState) -> Result<()> {
     if !state.settings.read().await.house_power_enabled { return Ok(()); }
     let devices = state.db.list_devices()?;
@@ -62,6 +75,19 @@ async fn run_automations(state: &AppState) -> Result<()> {
             continue;
         }
 
+        if item.action_group_id.is_none()
+            && device_has_enabled_thermostat_zone(&item.action_device_id, &zones)
+            && automation_action_conflicts_with_thermostat(&item.action)
+        {
+            // Fan/quiet/sleep are outputs continuously managed by the thermostat. Unlike
+            // power/mode/target they cannot be translated into durable zone state, so a direct
+            // automation would be immediately overwritten by the next thermostat cycle.
+            state.log("warn", "automation.blocked_by_thermostat_owner", &format!("Automation {} suppressed because the device is owned by an enabled thermostat zone", item.name), json!({
+                "automation_id": item.id, "device_id": item.action_device_id
+            }));
+            continue;
+        }
+
         let target_devices: Vec<String> = if let Some(group_id) = item.action_group_id.as_deref() {
             groups.iter().find(|group| group.id == group_id)
                 .map(|group| group.zone_ids.iter()