1 files changed, 69 insertions, 0 deletions
diff --git a/.config/ags/service/brightness.ts b/.config/ags/service/brightness.ts
new file mode 100644
index 0000000..a0b8eb5
--- /dev/null
+++ b/.config/ags/service/brightness.ts
@@ -0,0 +1,69 @@
+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(`brightnessctl set ${Math.floor(percent * 100)}% -q`).then(() => {
+            this.#screen = percent
+            this.changed("screen")
+        })
+    }
+
+    constructor() {
+        super()
+
+        const screenPath = `/sys/class/backlight/${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