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use mpd::song::Song;
use mpd::{Client, State};
use simple_dmenu::dmenu;
use std::process::Command;
use std::time::Duration;
pub type Result<T> = core::result::Result<T, Error>;
pub type Error = Box<dyn std::error::Error>;
#[derive(Debug)]
pub struct Connection {
pub conn: Client,
pub songs_filenames: Vec<String>,
pub state: String,
pub elapsed: Duration,
pub total_duration: Duration,
pub volume: u8,
}
impl Connection {
/// Create a new connection
pub fn new(addrs: &str) -> Result<Self> {
let mut conn = Client::connect(addrs).unwrap();
let songs_filenames: Vec<String> = conn
.listall()
.unwrap()
.into_iter()
.map(|x| x.file)
.collect();
let (elapsed, total) = conn.status().unwrap().time.unwrap_or_default();
let volume: u8 = conn.status().unwrap_or_default().volume as u8;
Ok(Self {
conn,
songs_filenames,
state: "Stopped".to_string(),
elapsed,
total_duration: total,
volume,
})
}
/// Fzf prompt for selecting song
pub fn play_fzf(&mut self) -> Result<()> {
is_installed("fzf").map_err(|ex| ex)?;
let ss = &self.songs_filenames;
let fzf_choice = rust_fzf::select(ss.clone(), Vec::new()).unwrap();
let index = get_choice_index(&self.songs_filenames, fzf_choice.get(0).unwrap());
let song = self.get_song_with_only_filename(ss.get(index).unwrap());
self.push(&song)?;
Ok(())
}
/// Dmenu prompt for selecting songs
pub fn play_dmenu(&mut self) -> Result<()> {
is_installed("dmenu").map_err(|ex| ex)?;
let ss: Vec<&str> = self.songs_filenames.iter().map(|x| x.as_str()).collect();
let op = dmenu!(iter &ss; args "-p", "Choose a song: ", "-l", "30");
let index = get_choice_index(&self.songs_filenames, &op);
let song = self.get_song_with_only_filename(ss.get(index).unwrap());
self.push(&song)?;
Ok(())
}
pub fn update_state(&mut self) -> String {
match self.conn.status().unwrap().state {
State::Stop => self.state = "Stopped".to_string(),
State::Play => self.state = "Playing".to_string(),
State::Pause => self.state = "Paused".to_string(),
}
self.state.clone()
}
pub fn update_progress(&mut self) {
let (elapsed, total) = self.conn.status().unwrap().time.unwrap_or_default();
self.elapsed = elapsed;
self.total_duration = total;
}
pub fn update_volume(&mut self) {
self.volume = self.conn.status().unwrap_or_default().volume as u8;
}
pub fn get_progress_ratio(&self) -> f64 {
let total = self.total_duration.as_secs_f64();
if total == 0.0 {
0.0
} else {
let ratio = self.elapsed.as_secs_f64() / self.total_duration.as_secs_f64();
if ratio > 1.0 || ratio == 0.0 {
0.0
} else {
ratio
}
}
}
/// push the given song to queue
pub fn push(&mut self, song: &Song) -> Result<()> {
if self.conn.queue().unwrap().is_empty() {
self.conn.push(song).unwrap();
self.conn.play().unwrap();
} else {
self.conn.push(song)?;
let len: u32 = (self.conn.queue().unwrap().len() - 1).try_into().unwrap();
self.conn.switch(len)?;
if self.conn.status()?.state == State::Stop {
self.conn.play()?;
}
}
Ok(())
}
/// Push all songs of a playlist into queue
pub fn push_playlist(&mut self, playlist: &str) -> Result<()> {
let songs: Vec<Song> = self.conn.playlist(playlist)?;
for song in songs {
if self.songs_filenames.contains(&song.file) {
let song = self.get_song_with_only_filename(&song.file);
self.conn.push(&song)?;
self.conn.play()?;
}
}
Ok(())
}
/// Given a filename, get instance of Song with only filename
pub fn get_song_with_only_filename(&self, filename: &str) -> Song {
Song {
file: filename.to_string(),
artist: None,
title: None,
duration: None,
last_mod: None,
name: None,
place: None,
range: None,
tags: vec![("".to_string(), "".to_string())],
}
}
/// get current playing song
pub fn get_current_song(&mut self) -> Option<String> {
self.conn.currentsong().unwrap().unwrap_or_default().title
}
/// Print status to stdout
pub fn status(&mut self) {
let current_song = self.conn.currentsong();
let status = self.conn.status().unwrap();
if current_song.is_ok() && status.state != State::Stop {
let song = current_song.unwrap();
if let Some(s) = song {
println!("{} - {}", s.artist.unwrap(), s.title.unwrap());
}
}
println!(
"volume: {}\trepeat: {}\trandom: {}\tsingle: {}\tconsume: {}",
status.volume, status.repeat, status.random, status.single, status.consume
);
}
/// Gives title of current playing song
pub fn now_playing(&mut self) -> Result<Option<String>> {
let song = self.conn.currentsong()?.unwrap_or_default();
if let Some(s) = song.title {
if let Some(a) = song.artist {
return Ok(Some(format!("\"{}\" By {}", a, s)));
} else {
return Ok(Some(s));
}
} else {
return Ok(Some(song.file));
}
}
// Playback controls
/// Pause playback
pub fn pause(&mut self) {
self.conn.pause(true).unwrap();
}
/// Toggles playback
pub fn toggle_pause(&mut self) {
self.conn.toggle_pause().unwrap();
}
// Volume controls
pub fn inc_volume(&mut self, v: i8) {
let cur = self.conn.status().unwrap().volume;
if cur + v <= 100 {
self.conn.volume(cur + v).unwrap();
}
}
pub fn dec_volume(&mut self, v: i8) {
let cur = self.conn.status().unwrap().volume;
if cur - v >= 0 {
self.conn.volume(cur - v).unwrap();
}
}
}
/// Gets the index of the string from the Vector
fn get_choice_index(ss: &Vec<String>, selection: &str) -> usize {
let mut choice: usize = 0;
if let Some(index) = ss.iter().position(|s| s == selection) {
choice = index;
}
choice
}
/// Checks if given program is installed in your system
fn is_installed(ss: &str) -> Result<()> {
let output = Command::new("which")
.arg(ss)
.output()
.expect("Failed to execute command");
if output.status.success() {
Ok(())
} else {
let err = format!("{} not installed", ss);
Err(err.into())
}
}
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