split up json parsing logic

src-slider_io/src/device/config.rs

@@ -1,3 +1,5 @@
+use serde_json::Value;
+
 #[derive(Debug, Clone)]
 pub enum HardwareSpec {
   TasollerOne,
@@ -16,3 +18,37 @@ pub enum DeviceMode {
     led_enabled: bool,
   },
 }
+
+impl DeviceMode {
+  pub fn from_serde_value(v: &Value) -> Option<Self> {
+    Some(match v["deviceMode"].as_str()? {
+      "none" => DeviceMode::None,
+      "tasoller-one" => DeviceMode::Hardware {
+        spec: HardwareSpec::TasollerOne,
+      },
+      "tasoller-two" => DeviceMode::Hardware {
+        spec: HardwareSpec::TasollerTwo,
+      },
+      "yuancon" => DeviceMode::Hardware {
+        spec: HardwareSpec::Yuancon,
+      },
+      "brokenithm" => DeviceMode::Brokenithm {
+        ground_only: false,
+        led_enabled: false,
+      },
+      "brokenithm-led" => DeviceMode::Brokenithm {
+        ground_only: false,
+        led_enabled: true,
+      },
+      "brokenithm-ground" => DeviceMode::Brokenithm {
+        ground_only: true,
+        led_enabled: false,
+      },
+      "brokenithm-ground-led" => DeviceMode::Brokenithm {
+        ground_only: true,
+        led_enabled: true,
+      },
+      _ => return None,
+    })
+  }
+}