154 lines
4.6 KiB
Rust
154 lines
4.6 KiB
Rust
use std::{fs::create_dir_all, path::Path};
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use anyhow::Context;
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use mpvipc_async::{Mpv, MpvCommand, Event as MpvEvent};
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use tokio::{process::{Child, Command}, sync::{broadcast::{Receiver as BroadcastReceiver, Sender as BroadcastSender}, mpsc::{Receiver as MpscReceiver, Sender as MpscSender}}};
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#[derive(Debug)]
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pub struct MpvBroker {
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mpv: Mpv,
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command_channel: MpscReceiver<MpvCommand>,
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event_listeners: BroadcastSender<MpvEvent>,
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}
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impl MpvBroker {
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pub fn new(
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mpv: Mpv,
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command_channel: MpscReceiver<MpvCommand>,
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event_listeners: BroadcastSender<MpvEvent>,
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) -> Self {
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Self {
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mpv,
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command_channel,
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event_listeners,
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}
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}
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pub async fn run(&mut self) -> anyhow::Result<()> {
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loop {
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tokio::select! {
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Some(command) = self.command_channel.recv() => {
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self.mpv.run_command(command)?;
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}
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Ok(event) = async { self.mpv.event_listen() } => {
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self.event_listeners.send(event)?;
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}
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}
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}
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}
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}
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pub struct MpvConnectionArgs {
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pub socket_path: String,
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pub executable_path: Option<String>,
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pub auto_start: bool,
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pub force_auto_start: bool,
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}
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pub async fn connect_to_mpv(args: &MpvConnectionArgs) -> anyhow::Result<(Mpv, Option<Child>)> {
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log::debug!("Connecting to mpv");
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debug_assert!(
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!args.force_auto_start || args.auto_start,
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"force_auto_start requires auto_start"
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);
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let socket_path = Path::new(&args.socket_path);
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if !socket_path.exists() {
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log::debug!("Mpv socket not found at {}", &args.socket_path);
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if !args.auto_start {
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panic!("Mpv socket not found at {}", &args.socket_path);
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}
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log::debug!("Ensuring parent dir of mpv socket exists");
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let parent_dir = Path::new(&args.socket_path)
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.parent()
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.context("Failed to get parent dir of mpv socket")?;
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if !parent_dir.is_dir() {
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create_dir_all(parent_dir).context("Failed to create parent dir of mpv socket")?;
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}
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} else {
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log::debug!("Existing mpv socket found at {}", &args.socket_path);
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if args.force_auto_start {
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log::debug!("Removing mpv socket");
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std::fs::remove_file(&args.socket_path)?;
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}
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}
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let process_handle = if args.auto_start {
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log::info!("Starting mpv with socket at {}", &args.socket_path);
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// TODO: try to fetch mpv from PATH
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Some(
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Command::new(args.executable_path.as_deref().unwrap_or("mpv"))
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.arg(format!("--input-ipc-server={}", &args.socket_path))
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.arg("--idle")
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.arg("--force-window")
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// .arg("--fullscreen")
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// .arg("--no-terminal")
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// .arg("--load-unsafe-playlists")
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.arg("--keep-open") // Keep last frame of video on end of video
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.arg("--really-quiet")
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.spawn()
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.context("Failed to start mpv")?,
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)
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} else {
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None
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};
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// Wait for mpv to create the socket
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if tokio::time::timeout(tokio::time::Duration::from_millis(500), async {
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while !&socket_path.exists() {
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log::debug!("Waiting for mpv socket at {}", &args.socket_path);
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tokio::time::sleep(tokio::time::Duration::from_millis(10)).await;
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}
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})
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.await
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.is_err()
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{
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return Err(anyhow::anyhow!(
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"Failed to connect to mpv socket: {}",
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&args.socket_path
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));
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}
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Ok((
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Mpv::connect(&args.socket_path).context(format!(
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"Failed to connect to mpv socket: {}",
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&args.socket_path
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))?,
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process_handle,
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))
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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use mpvipc_async::MpvCommand;
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use tokio::sync::{broadcast, mpsc};
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#[tokio::test]
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async fn test_run() -> anyhow::Result<()> {
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let (command_tx, command_rx) = mpsc::channel(1);
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let (event_tx, _) = broadcast::channel(1);
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let (mpv, _) = connect_to_mpv(&MpvConnectionArgs {
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socket_path: "/tmp/mpv-test.sock".to_string(),
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executable_path: None,
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auto_start: true,
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force_auto_start: true,
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}).await?;
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let mut broker = MpvBroker::new(mpv, command_rx, event_tx);
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let broker_handle = tokio::spawn(async move {
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broker.run().await.unwrap();
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});
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let _ = command_tx.send(MpvCommand::PlaylistClear).await;
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let _ = broker_handle.await.unwrap();
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Ok(())
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}
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} |