Files
eva-pwm-cohost/src/artifacts/mixxx.rs
T

87 lines
3.0 KiB
Rust

use schemars::JsonSchema;
use serde::{Deserialize, Serialize};
use sqlite::OpenFlags;
use crate::artifacts::{Album, Artifact, ArtifactBuilder, Artist, SourceID, Track, tools::{DataSource, ToolDescription}};
#[derive(Debug)]
#[allow(unused)]
pub enum MixxxError {
Sql(sqlite::Error)
}
impl From<sqlite::Error> for MixxxError {
fn from(value: sqlite::Error) -> Self {
Self::Sql(value)
}
}
pub struct MixxxDB;
#[derive(Serialize, Deserialize, Debug, Default, JsonSchema)]
pub struct MixxxQuery {
pub playlist_name: String
}
impl DataSource for MixxxDB {
type Args = MixxxQuery;
type Error = MixxxError;
async fn synchronize(&self, _artifact: &mut Artifact) -> Result<Vec<Artifact>, Self::Error> {
Ok(vec![])
}
async fn query(&self, args: &Self::Args) -> Result<Vec<Artifact>, Self::Error> {
let mut ret = vec![];
let playlist_name = args.playlist_name.as_str();
log::info!("Loading Mixxx playlist {}", playlist_name);
let connection = sqlite::Connection::open_thread_safe_with_flags("mixxxdb.sqlite", OpenFlags::new().with_read_only())?;
let query = "SELECT id FROM Playlists WHERE name = ? ORDER BY id DESC LIMIT 1";
let mut statement = connection.prepare(query)?;
statement.bind((1, playlist_name))?;
statement.next()?;
let latest_id = statement.read::<i64, _>("id")?;
let query = "SELECT title, artist, album, comment, url, bpm FROM library LEFT JOIN PlaylistTracks ON PlaylistTracks.track_id = library.id WHERE PlaylistTracks.playlist_id = ? ORDER BY position";
for track in connection.prepare(query)?.into_iter().bind((1, latest_id))? {
let track = track?;
let title = track.try_read::<&str, _>("title").unwrap_or("Untitled Track");
let artist = track.try_read::<&str, _>("artist").unwrap_or("Unknown Artist");
let album = track.try_read::<&str, _>("album").unwrap_or("Unknown Album");
let bpm = track.try_read::<f64, _>("bpm").unwrap_or(0.);
ret.push(ArtifactBuilder::new(SourceID::Mixxx)
.contents(Track {
artist: Some(artist.into()),
album: Some(album.into()),
title: title.into(),
bpm: Some(bpm),
..Default::default()
}).build());
ret.push(ArtifactBuilder::new(SourceID::Mixxx)
.contents(Album {
artist: artist.into(),
title: album.into(),
..Default::default()
}).build());
ret.push(ArtifactBuilder::new(SourceID::Mixxx)
.contents(Artist {
name: artist.into(),
..Default::default()
}).build());
}
Ok(ret)
}
}
impl ToolDescription for MixxxDB {
fn description(&self) -> &str {
"Loads artifacts from a given Mixxx playlist name"
}
fn name(&self) -> &str {
"query_mixxx"
}
}