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use std::sync::Arc;
use tokio::sync::{mpsc::Sender, Mutex};
use zbus::Connection;
use crate::{
dbus::player::{PlaybackStatus, PlayerProxy},
i3bar::{Block, Click},
Error,
};
use super::{Button, Component, Update};
pub struct Volume;
impl Component for Volume {
const NAME: &'static str = "volume";
type Updater = Self;
type Colorer = PlaybackStatus;
type Handler = Self;
}
impl Update for Volume {
type Value = Option<f64>;
async fn listen(tx: Sender<Self::Value>, proxy: PlayerProxy<'_>) -> Result<(), Error> {
use futures_util::StreamExt;
tx.send(proxy.volume().await.ok()).await?;
let mut stream = proxy.receive_volume_changed().await;
while let Some(signal) = stream.next().await {
if let Ok(value) = signal.get().await {
tx.send(Some(value)).await?;
}
}
Ok(())
}
async fn update(value: Self::Value, block: Arc<Mutex<Block>>) -> Result<bool, Error> {
let mut block = block.lock().await;
block.full_text = match value.map(|v| (v * 100_f64) as u32) {
Some(v @ 66..) => format!(" {v}% "),
Some(v @ 33..) => format!(" {v}% "),
Some(v @ 0..) => format!(" {v}% "),
None => " ".to_string(),
};
Ok(true)
}
}
impl Button for Volume {
async fn handle(conn: Connection, click: Click) -> Result<(), Error> {
let Some(name) = click.instance else {
return Ok(());
};
let proxy = PlayerProxy::builder(&conn)
.destination(name)?
.build()
.await?;
match (click.button, proxy.volume().await) {
(4, Ok(v)) if proxy.can_control().await? => proxy.set_volume(v + 0.05).await?,
(5, Ok(v)) if proxy.can_control().await? => proxy.set_volume(v - 0.05).await?,
_ => (),
}
Ok(())
}
}
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