From 406988fbdf968f19ac40ce781f40d57052cef11b Mon Sep 17 00:00:00 2001
From: Vicki Pfau <vi@endrift.com>
Date: Fri, 29 Mar 2024 18:04:06 -0700
Subject: [PATCH] manager: Implement fan_control_state

---
 src/manager.rs | 15 +++++++++++----
 src/systemd.rs |  4 ++++
 2 files changed, 15 insertions(+), 4 deletions(-)

diff --git a/src/manager.rs b/src/manager.rs
index 4202588..a51240a 100644
--- a/src/manager.rs
+++ b/src/manager.rs
@@ -128,10 +128,17 @@ impl SteamOSManager {
     }
 
     #[zbus(property)]
-    fn fan_control_state(&self) -> zbus::fdo::Result<u32> {
-        Err(zbus::fdo::Error::UnknownProperty(String::from(
-            "This property can't currently be read",
-        )))
+    async fn fan_control_state(&self) -> zbus::fdo::Result<u32> {
+        let jupiter_fan_control =
+            SystemdUnit::new(self.connection.clone(), "jupiter_2dfan_2dcontrol_2eservice")
+                .await
+                .map_err(anyhow_to_zbus_fdo)?;
+        let active = jupiter_fan_control.active().await
+                .map_err(anyhow_to_zbus_fdo)?;
+        Ok(match active {
+            true => FanControl::OS as u32,
+            false => FanControl::BIOS as u32,
+        })
     }
 
     #[zbus(property)]
diff --git a/src/systemd.rs b/src/systemd.rs
index e8d4395..6c111f5 100644
--- a/src/systemd.rs
+++ b/src/systemd.rs
@@ -69,4 +69,8 @@ impl<'dbus> SystemdUnit<'dbus> {
         self.proxy.stop("fail").await?;
         Ok(())
     }
+
+    pub async fn active(&self) -> Result<bool> {
+        Ok(self.proxy.active_state().await? == "active")
+    }
 }