update system

overlays/asztal/service/brightness.ts

@@ -0,0 +1,78 @@
+import { bash, dependencies, sh } from "lib/utils";
+
+if (!dependencies("brightnessctl")) App.quit();
+
+const get = (args: string) => Number(Utils.exec(`brightnessctl ${args}`));
+const screen = await bash`ls -w1 /sys/class/backlight | head -1`;
+const kbd = await bash`ls -w1 /sys/class/leds | head -1`;
+
+class Brightness extends Service {
+  static {
+    Service.register(
+      this,
+      {},
+      {
+        screen: ["float", "rw"],
+        kbd: ["int", "rw"],
+      },
+    );
+  }
+
+  #kbdMax = get(`--device ${kbd} max`);
+  #kbd = get(`--device ${kbd} get`);
+  #screenMax = get("max");
+  #screen = get("get") / get("max");
+
+  get kbd() {
+    return this.#kbd;
+  }
+  get screen() {
+    return this.#screen;
+  }
+
+  set kbd(value) {
+    if (value < 0 || value > this.#kbdMax) return;
+
+    sh(`brightnessctl -d ${kbd} s ${value} -q`).then(() => {
+      this.#kbd = value;
+      this.changed("kbd");
+    });
+  }
+
+  set screen(percent) {
+    if (percent < 0) percent = 0;
+
+    if (percent > 1) percent = 1;
+
+    sh(
+      `gbmonctl --prop brightness -val ${Math.min(
+        Math.max(Math.floor(percent * 100), 0),
+        100,
+      )}`,
+    ).then(() => {
+      this.#screen = percent;
+      this.changed("screen");
+    });
+  }
+
+  constructor() {
+    super();
+
+    const screenPath = `/sys/class/backlight/${screen}/brightness`;
+    const kbdPath = `/sys/class/leds/${kbd}/brightness`;
+
+    Utils.monitorFile(screenPath, async (f) => {
+      const v = await Utils.readFileAsync(f);
+      this.#screen = Number(v) / this.#screenMax;
+      this.changed("screen");
+    });
+
+    Utils.monitorFile(kbdPath, async (f) => {
+      const v = await Utils.readFileAsync(f);
+      this.#kbd = Number(v) / this.#kbdMax;
+      this.changed("kbd");
+    });
+  }
+}
+
+export default new Brightness();