rescrobbled 0.6.0

MPRIS music scrobbler daemon
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154

// Copyright (C) 2021 Koen Bolhuis
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.

use std::fmt::{self, Write};

use anyhow::{anyhow, Context, Result};

use listenbrainz::ListenBrainz;

use rustfm_scrobble_proxy::Scrobbler;

mod lastfm;

use crate::config::{Config, ListenBrainzConfig};
use crate::track::Track;

/// Represents a music scrobbling service.
pub enum Service {
    LastFM(Scrobbler),
    ListenBrainz {
        client: ListenBrainz,
        is_default: bool,
    },
}

impl Service {
    /// Try to connect to Last.fm.
    fn lastfm(config: &Config) -> Result<Option<Self>> {
        match (&config.lastfm_key, &config.lastfm_secret) {
            (Some(key), Some(secret)) => {
                let mut scrobbler = Scrobbler::new(key, secret);

                lastfm::authenticate(&mut scrobbler)
                    .context("Failed to authenticate with Last.fm")?;

                Ok(Some(Self::LastFM(scrobbler)))
            }
            (None, None) => Ok(None),
            _ => Err(anyhow!("Last.fm API key or API secret are missing")),
        }
    }

    /// Try to connect to a ListenBrainz instance.
    fn listenbrainz(lb: &ListenBrainzConfig) -> Result<Self> {
        let mut client = match lb.url {
            Some(ref url) => ListenBrainz::new_with_url(url),
            None => ListenBrainz::new(),
        };

        client.authenticate(&lb.token).with_context(|| {
            let mut err = "Failed to authenticate with ListenBrainz".to_owned();
            if let Some(ref url) = lb.url {
                write!(err, " ({url})").unwrap();
            }
            err
        })?;

        Ok(Self::ListenBrainz {
            is_default: lb.url.is_none(),
            client,
        })
    }

    /// Initialize all services specified in the config.
    pub fn initialize_all(config: &Config) -> Vec<Self> {
        let mut services = Vec::new();

        match Self::lastfm(config) {
            Ok(Some(lastfm)) => {
                println!("Authenticated with {} successfully!", lastfm);
                services.push(lastfm);
            }
            Err(err) => eprintln!("{:?}", err),
            _ => {}
        }

        for lb in config.listenbrainz.iter().flatten() {
            match Self::listenbrainz(lb) {
                Ok(service) => {
                    println!("Authenticated with {} successfully!", service);
                    services.push(service);
                }
                Err(err) => eprintln!("{:?}", err),
            }
        }

        if services.is_empty() {
            eprintln!("Warning: no scrobbling services defined");
        }

        services
    }

    /// Submit a "now playing" request.
    pub fn now_playing(&self, track: &Track) -> Result<()> {
        match self {
            Self::LastFM(scrobbler) => {
                scrobbler
                    .now_playing(&track.into())
                    .with_context(|| format!("Failed to update status on {}", self))?;
            }
            Self::ListenBrainz { client, .. } => {
                client
                    .playing_now(track.artist(), track.title(), track.album())
                    .with_context(|| format!("Failed to update status on {}", self))?;
            }
        }
        Ok(())
    }

    /// Scrobble a track.
    pub fn submit(&self, track: &Track) -> Result<()> {
        match self {
            Self::LastFM(scrobbler) => {
                scrobbler
                    .scrobble(&track.into())
                    .with_context(|| format!("Failed to submit track to {}", self))?;
            }
            Self::ListenBrainz { client, .. } => {
                client
                    .listen(track.artist(), track.title(), track.album())
                    .with_context(|| format!("Failed to submit track to {}", self))?;
            }
        }
        Ok(())
    }
}

impl fmt::Display for Service {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        match self {
            Self::LastFM(_) => write!(f, "Last.fm"),
            Self::ListenBrainz { client, is_default } => {
                write!(f, "ListenBrainz")?;
                if !is_default {
                    write!(f, " ({})", client.api_url())?;
                }
                Ok(())
            }
        }
    }
}