greg-ng/src/mpv_setup.rs
2024-10-20 01:24:09 +02:00

136 lines
4.1 KiB
Rust

use std::{fs::create_dir_all, io::Write, path::Path};
use anyhow::Context;
use mpvipc_async::{Mpv, MpvExt};
use tempfile::NamedTempFile;
use tokio::process::{Child, Command};
use crate::MpvConnectionArgs;
const DEFAULT_MPV_CONFIG_CONTENT: &str = include_str!("../assets/default-mpv.conf");
const THE_MAN_PNG: &[u8] = include_bytes!("../assets/the_man.png");
pub fn create_mpv_config_file(args_config_file: Option<String>) -> anyhow::Result<NamedTempFile> {
let file_content = if let Some(path) = args_config_file {
if !Path::new(&path).exists() {
anyhow::bail!("Mpv config file not found at {}", &path);
}
std::fs::read_to_string(&path).context("Failed to read mpv config file")?
} else {
DEFAULT_MPV_CONFIG_CONTENT.to_string()
};
let tmpfile = tempfile::Builder::new()
.prefix("mpv-")
.rand_bytes(8)
.suffix(".conf")
.tempfile()?;
tmpfile.reopen()?.write_all(file_content.as_bytes())?;
Ok(tmpfile)
}
pub async fn connect_to_mpv<'a>(
args: &MpvConnectionArgs<'a>,
) -> anyhow::Result<(Mpv, Option<Child>)> {
log::debug!("Connecting to mpv");
debug_assert!(
!args.force_auto_start || args.auto_start,
"force_auto_start requires auto_start"
);
let socket_path = Path::new(&args.socket_path);
if !socket_path.exists() {
log::debug!("Mpv socket not found at {}", &args.socket_path);
if !args.auto_start {
panic!("Mpv socket not found at {}", &args.socket_path);
}
log::debug!("Ensuring parent dir of mpv socket exists");
let parent_dir = Path::new(&args.socket_path)
.parent()
.context("Failed to get parent dir of mpv socket")?;
if !parent_dir.is_dir() {
create_dir_all(parent_dir).context("Failed to create parent dir of mpv socket")?;
}
} else {
log::debug!("Existing mpv socket found at {}", &args.socket_path);
if args.force_auto_start {
log::debug!("Removing mpv socket");
std::fs::remove_file(&args.socket_path)?;
}
}
let process_handle = if args.auto_start {
log::info!("Starting mpv with socket at {}", &args.socket_path);
// TODO: try to fetch mpv from PATH
Some(
Command::new(args.executable_path.as_deref().unwrap_or("mpv"))
.arg(format!("--input-ipc-server={}", &args.socket_path))
.arg("--idle")
.arg("--force-window")
.arg("--fullscreen")
.arg("--no-config")
.arg(format!(
"--include={}",
&args.config_file.path().to_string_lossy()
))
// .arg("--no-terminal")
.arg("--load-unsafe-playlists")
.arg("--keep-open") // Keep last frame of video on end of video
.spawn()
.context("Failed to start mpv")?,
)
} else {
None
};
// Wait for mpv to create the socket
if tokio::time::timeout(tokio::time::Duration::from_millis(500), async {
while !&socket_path.exists() {
log::debug!("Waiting for mpv socket at {}", &args.socket_path);
tokio::time::sleep(tokio::time::Duration::from_millis(10)).await;
}
})
.await
.is_err()
{
return Err(anyhow::anyhow!(
"Failed to connect to mpv socket: {}",
&args.socket_path
));
}
Ok((
Mpv::connect(&args.socket_path).await.context(format!(
"Failed to connect to mpv socket: {}",
&args.socket_path
))?,
process_handle,
))
}
pub async fn show_grzegorz_image(mpv: Mpv) -> anyhow::Result<()> {
let path = std::env::temp_dir().join("the_man.png");
std::fs::write(path.as_path(), THE_MAN_PNG)?;
mpv.playlist_clear().await?;
mpv.playlist_add(
path.to_string_lossy().as_ref(),
mpvipc_async::PlaylistAddTypeOptions::File,
mpvipc_async::PlaylistAddOptions::Append,
)
.await?;
mpv.next().await?;
Ok(())
}