caesura 0.20.0

An all-in-one command line tool to **transcode FLAC** audio files and **upload to gazelle** based indexers/trackers.
Documentation 
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use std::collections::BTreeSet;

use crate::api::Torrent;
use crate::formats::ExistingFormat;

pub struct ExistingFormatProvider;

impl ExistingFormatProvider {
    pub fn get(source_torrent: &Torrent, group_torrents: &[Torrent]) -> BTreeSet<ExistingFormat> {
        group_torrents
            .iter()
            .filter(|&other_torrent| is_alternative_format(source_torrent, other_torrent))
            .filter_map(Torrent::get_format)
            .collect()
    }
}

/// Determine if [target] is an alternative format of the [source] release.
fn is_alternative_format(source: &Torrent, target: &Torrent) -> bool {
    target.remaster_title == source.remaster_title
        && target.remaster_record_label == source.remaster_record_label
        && target.media == source.media
        && target.remaster_catalogue_number == source.remaster_catalogue_number
}