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player_event_handler.rs
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player_event_handler.rs
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use log::{debug, error, warn};
use std::{collections::HashMap, process::Command, thread};
use librespot::{
metadata::audio::UniqueFields,
playback::player::{PlayerEvent, PlayerEventChannel, SinkStatus},
};
pub struct EventHandler {
thread_handle: Option<thread::JoinHandle<()>>,
}
impl EventHandler {
pub fn new(mut player_events: PlayerEventChannel, onevent: &str) -> Self {
let on_event = onevent.to_string();
let thread_handle = Some(thread::spawn(move || loop {
match player_events.blocking_recv() {
None => break,
Some(event) => {
let mut env_vars = HashMap::new();
match event {
PlayerEvent::PlayRequestIdChanged { play_request_id } => {
env_vars.insert("PLAYER_EVENT", "play_request_id_changed".to_string());
env_vars.insert("PLAY_REQUEST_ID", play_request_id.to_string());
}
PlayerEvent::TrackChanged { audio_item } => {
match audio_item.track_id.to_base62() {
Err(e) => {
warn!("PlayerEvent::TrackChanged: Invalid track id: {}", e)
}
Ok(id) => {
env_vars.insert("PLAYER_EVENT", "track_changed".to_string());
env_vars.insert("TRACK_ID", id);
env_vars.insert("URI", audio_item.uri);
env_vars.insert("NAME", audio_item.name);
env_vars.insert(
"COVERS",
audio_item
.covers
.into_iter()
.map(|c| c.url)
.collect::<Vec<String>>()
.join("\n"),
);
env_vars.insert("LANGUAGE", audio_item.language.join("\n"));
env_vars
.insert("DURATION_MS", audio_item.duration_ms.to_string());
env_vars
.insert("IS_EXPLICIT", audio_item.is_explicit.to_string());
match audio_item.unique_fields {
UniqueFields::Track {
artists,
album,
album_artists,
popularity,
number,
disc_number,
} => {
env_vars.insert("ITEM_TYPE", "Track".to_string());
env_vars.insert(
"ARTISTS",
artists
.0
.into_iter()
.map(|a| a.name)
.collect::<Vec<String>>()
.join("\n"),
);
env_vars
.insert("ALBUM_ARTISTS", album_artists.join("\n"));
env_vars.insert("ALBUM", album);
env_vars.insert("POPULARITY", popularity.to_string());
env_vars.insert("NUMBER", number.to_string());
env_vars.insert("DISC_NUMBER", disc_number.to_string());
}
UniqueFields::Episode {
description,
publish_time,
show_name,
} => {
env_vars.insert("ITEM_TYPE", "Episode".to_string());
env_vars.insert("DESCRIPTION", description);
env_vars.insert(
"PUBLISH_TIME",
publish_time.unix_timestamp().to_string(),
);
env_vars.insert("SHOW_NAME", show_name);
}
}
}
}
}
PlayerEvent::Stopped { track_id, .. } => match track_id.to_base62() {
Err(e) => warn!("PlayerEvent::Stopped: Invalid track id: {}", e),
Ok(id) => {
env_vars.insert("PLAYER_EVENT", "stopped".to_string());
env_vars.insert("TRACK_ID", id);
}
},
PlayerEvent::Playing {
track_id,
position_ms,
..
} => match track_id.to_base62() {
Err(e) => warn!("PlayerEvent::Playing: Invalid track id: {}", e),
Ok(id) => {
env_vars.insert("PLAYER_EVENT", "playing".to_string());
env_vars.insert("TRACK_ID", id);
env_vars.insert("POSITION_MS", position_ms.to_string());
}
},
PlayerEvent::Paused {
track_id,
position_ms,
..
} => match track_id.to_base62() {
Err(e) => warn!("PlayerEvent::Paused: Invalid track id: {}", e),
Ok(id) => {
env_vars.insert("PLAYER_EVENT", "paused".to_string());
env_vars.insert("TRACK_ID", id);
env_vars.insert("POSITION_MS", position_ms.to_string());
}
},
PlayerEvent::Loading { track_id, .. } => match track_id.to_base62() {
Err(e) => warn!("PlayerEvent::Loading: Invalid track id: {}", e),
Ok(id) => {
env_vars.insert("PLAYER_EVENT", "loading".to_string());
env_vars.insert("TRACK_ID", id);
}
},
PlayerEvent::Preloading { track_id, .. } => match track_id.to_base62() {
Err(e) => warn!("PlayerEvent::Preloading: Invalid track id: {}", e),
Ok(id) => {
env_vars.insert("PLAYER_EVENT", "preloading".to_string());
env_vars.insert("TRACK_ID", id);
}
},
PlayerEvent::TimeToPreloadNextTrack { track_id, .. } => {
match track_id.to_base62() {
Err(e) => warn!(
"PlayerEvent::TimeToPreloadNextTrack: Invalid track id: {}",
e
),
Ok(id) => {
env_vars.insert("PLAYER_EVENT", "preload_next".to_string());
env_vars.insert("TRACK_ID", id);
}
}
}
PlayerEvent::EndOfTrack { track_id, .. } => match track_id.to_base62() {
Err(e) => warn!("PlayerEvent::EndOfTrack: Invalid track id: {}", e),
Ok(id) => {
env_vars.insert("PLAYER_EVENT", "end_of_track".to_string());
env_vars.insert("TRACK_ID", id);
}
},
PlayerEvent::Unavailable { track_id, .. } => match track_id.to_base62() {
Err(e) => warn!("PlayerEvent::Unavailable: Invalid track id: {}", e),
Ok(id) => {
env_vars.insert("PLAYER_EVENT", "unavailable".to_string());
env_vars.insert("TRACK_ID", id);
}
},
PlayerEvent::VolumeChanged { volume } => {
env_vars.insert("PLAYER_EVENT", "volume_changed".to_string());
env_vars.insert("VOLUME", volume.to_string());
}
PlayerEvent::Seeked {
track_id,
position_ms,
..
} => match track_id.to_base62() {
Err(e) => warn!("PlayerEvent::Seeked: Invalid track id: {}", e),
Ok(id) => {
env_vars.insert("PLAYER_EVENT", "seeked".to_string());
env_vars.insert("TRACK_ID", id);
env_vars.insert("POSITION_MS", position_ms.to_string());
}
},
PlayerEvent::PositionCorrection {
track_id,
position_ms,
..
} => match track_id.to_base62() {
Err(e) => {
warn!("PlayerEvent::PositionCorrection: Invalid track id: {}", e)
}
Ok(id) => {
env_vars.insert("PLAYER_EVENT", "position_correction".to_string());
env_vars.insert("TRACK_ID", id);
env_vars.insert("POSITION_MS", position_ms.to_string());
}
},
PlayerEvent::SessionConnected {
connection_id,
user_name,
} => {
env_vars.insert("PLAYER_EVENT", "session_connected".to_string());
env_vars.insert("CONNECTION_ID", connection_id);
env_vars.insert("USER_NAME", user_name);
}
PlayerEvent::SessionDisconnected {
connection_id,
user_name,
} => {
env_vars.insert("PLAYER_EVENT", "session_disconnected".to_string());
env_vars.insert("CONNECTION_ID", connection_id);
env_vars.insert("USER_NAME", user_name);
}
PlayerEvent::SessionClientChanged {
client_id,
client_name,
client_brand_name,
client_model_name,
} => {
env_vars.insert("PLAYER_EVENT", "session_client_changed".to_string());
env_vars.insert("CLIENT_ID", client_id);
env_vars.insert("CLIENT_NAME", client_name);
env_vars.insert("CLIENT_BRAND_NAME", client_brand_name);
env_vars.insert("CLIENT_MODEL_NAME", client_model_name);
}
PlayerEvent::ShuffleChanged { shuffle } => {
env_vars.insert("PLAYER_EVENT", "shuffle_changed".to_string());
env_vars.insert("SHUFFLE", shuffle.to_string());
}
PlayerEvent::RepeatChanged { repeat } => {
env_vars.insert("PLAYER_EVENT", "repeat_changed".to_string());
env_vars.insert("REPEAT", repeat.to_string());
}
PlayerEvent::AutoPlayChanged { auto_play } => {
env_vars.insert("PLAYER_EVENT", "auto_play_changed".to_string());
env_vars.insert("AUTO_PLAY", auto_play.to_string());
}
PlayerEvent::FilterExplicitContentChanged { filter } => {
env_vars.insert(
"PLAYER_EVENT",
"filter_explicit_content_changed".to_string(),
);
env_vars.insert("FILTER", filter.to_string());
}
}
if !env_vars.is_empty() {
run_program(env_vars, &on_event);
}
}
}
}));
Self { thread_handle }
}
}
impl Drop for EventHandler {
fn drop(&mut self) {
debug!("Shutting down EventHandler thread ...");
if let Some(handle) = self.thread_handle.take() {
if let Err(e) = handle.join() {
error!("EventHandler thread Error: {:?}", e);
}
}
}
}
pub fn run_program_on_sink_events(sink_status: SinkStatus, onevent: &str) {
let mut env_vars = HashMap::new();
env_vars.insert("PLAYER_EVENT", "sink".to_string());
let sink_status = match sink_status {
SinkStatus::Running => "running",
SinkStatus::TemporarilyClosed => "temporarily_closed",
SinkStatus::Closed => "closed",
};
env_vars.insert("SINK_STATUS", sink_status.to_string());
run_program(env_vars, onevent);
}
fn run_program(env_vars: HashMap<&str, String>, onevent: &str) {
let mut v: Vec<&str> = onevent.split_whitespace().collect();
debug!(
"Running {} with environment variables:\n{:#?}",
onevent, env_vars
);
match Command::new(v.remove(0))
.args(&v)
.envs(env_vars.iter())
.spawn()
{
Err(e) => warn!("On event program {} failed to start: {}", onevent, e),
Ok(mut child) => match child.wait() {
Err(e) => warn!("On event program {} failed: {}", onevent, e),
Ok(e) if e.success() => (),
Ok(e) => {
if let Some(code) = e.code() {
warn!("On event program {} returned exit code {}", onevent, code);
} else {
warn!("On event program {} returned failure: {}", onevent, e);
}
}
},
}
}