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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
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