sortify 1.0.3

A command line application to organize Spotify playlists
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use rodio::{Decoder, OutputStream, Sink};
use rspotify::model::FullTrack;
use std::io::{Cursor, Read};

pub struct AudioPlayer {
    _stream: OutputStream,
    sink: Sink,
    volume: f32,
}

impl AudioPlayer {
    pub fn new() -> Option<AudioPlayer> {
        // Get an output stream handle to the default physical sound device
        let (stream, stream_handle) = OutputStream::try_default().ok()?;
        let sink = Sink::try_new(&stream_handle).ok()?;

        Some(AudioPlayer {
            _stream: stream,
            volume: sink.volume(),
            sink,
        })
    }

    pub fn stop(&self) {
        self.sink.stop();
    }

    pub fn volume_up(&mut self) {
        self.volume = self.volume + 0.1;
        self.sink.set_volume(self.sink.volume() + 0.1);
    }

    pub fn volume_down(&mut self) {
        self.volume = self.volume - 0.1;
        self.sink.set_volume(self.sink.volume() - 0.1);
    }

    pub fn volume(&self) -> f32 {
        self.sink.volume()
    }

    pub fn play_track_preview(&mut self, track: &FullTrack) -> Option<&Sink> {
        // make request for audio file, saving it in buffer
        let mut buffer: Vec<u8> = Vec::new();
        _ = ureq::get(&track.preview_url.clone()?)
            .call()
            .ok()?
            .into_reader()
            .read_to_end(&mut buffer);

        // Decoder requires its source to implement both Read and Seek, add them to the bytes via Cursor
        let source = Decoder::new_looped(Cursor::new(buffer)).ok()?;

        // we play the sound using a sink instead of play_raw to be able to later stop it
        self.sink.append(source);

        Some(&self.sink)
    }
}