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Handle idle time between fetch results (#212)
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Browse Source 
Closes #211

Reviewed-on: #212
This commit is contained in:
Wojciech Kozlowski 2024-09-08 23:23:53 +02:00
parent 8e48412282
commit 9d1caffd9c
16 changed files with 836 additions and 597 deletions
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13
src/main.rs
View File

@ -79,16 +79,19 @@ fn with<Database: IDatabase + 'static, Library: ILibrary + 'static>(
let backend = CrosstermBackend::new(io::stdout());
let terminal = Terminal::new(backend).expect("failed to initialise terminal");
let channel = EventChannel::new();
let listener = EventListener::new(channel.sender());
let handler = EventHandler::new(channel.receiver());
let http =
MusicBrainzHttp::new(MUSICHOARD_HTTP_USER_AGENT).expect("failed to initialise HTTP client");
let client = MusicBrainzClient::new(http);
let musicbrainz = MusicBrainz::new(client);
let app = App::new(music_hoard, musicbrainz);
let channel = EventChannel::new();
let listener_sender = channel.sender();
let app_sender = channel.sender();
let listener = EventListener::new(listener_sender);
let handler = EventHandler::new(channel.receiver());
let app = App::new(music_hoard, musicbrainz, app_sender);
let ui = Ui;
// Run the TUI application.

315
src/tui/app/machine/browse.rs
View File

@ -1,21 +1,7 @@
use std::{
sync::{mpsc, Arc, Mutex},
thread, time,
};
use musichoard::collection::{
album::AlbumMeta,
artist::ArtistMeta,
musicbrainz::{IMusicBrainzRef, Mbid},
};
use crate::tui::{
app::{
use crate::tui::app::{
machine::{App, AppInner, AppMachine},
selection::{Delta, ListSelection},
AppMatchesInfo, AppPublic, AppState, IAppInteractBrowse,
},
lib::interface::musicbrainz::{Error as MbError, IMusicBrainz},
AppPublic, AppState, IAppInteractBrowse,
};
pub struct AppBrowse;
@ -93,107 +79,18 @@ impl IAppInteractBrowse for AppMachine<AppBrowse> {
}
fn fetch_musicbrainz(self) -> Self::APP {
let coll = self.inner.music_hoard.get_collection();
let artist = match self.inner.selection.state_artist(coll) {
Some(artist_state) => &coll[artist_state.index],
None => {
return AppMachine::error(self.inner, "cannot fetch: no artist selected").into()
}
};
let (matches_tx, matches_rx) = mpsc::channel::<FetchResult>();
match artist.meta.musicbrainz {
Some(ref arid) => {
let musicbrainz = Arc::clone(&self.inner.musicbrainz);
let arid = arid.mbid().clone();
let albums = artist.albums.iter().map(|a| &a.meta).cloned().collect();
thread::spawn(|| Self::fetch_albums(musicbrainz, matches_tx, arid, albums));
}
None => {
let musicbrainz = Arc::clone(&self.inner.musicbrainz);
let artist = artist.meta.clone();
thread::spawn(|| Self::fetch_artist(musicbrainz, matches_tx, artist));
}
};
AppMachine::app_matches(self.inner, matches_rx)
}
fn no_op(self) -> Self::APP {
self.into()
}
}
pub type FetchError = MbError;
pub type FetchResult = Result<AppMatchesInfo, FetchError>;
pub type FetchSender = mpsc::Sender<FetchResult>;
pub type FetchReceiver = mpsc::Receiver<FetchResult>;
trait IAppInteractBrowsePrivate {
fn fetch_artist(
musicbrainz: Arc<Mutex<dyn IMusicBrainz + Send>>,
matches_tx: FetchSender,
artist: ArtistMeta,
);
fn fetch_albums(
musicbrainz: Arc<Mutex<dyn IMusicBrainz + Send>>,
matches_tx: FetchSender,
arid: Mbid,
albums: Vec<AlbumMeta>,
);
}
impl IAppInteractBrowsePrivate for AppMachine<AppBrowse> {
fn fetch_artist(
musicbrainz: Arc<Mutex<dyn IMusicBrainz + Send>>,
matches_tx: FetchSender,
artist: ArtistMeta,
) {
let result = musicbrainz.lock().unwrap().search_artist(&artist);
let result = result.map(|list| AppMatchesInfo::artist(artist, list));
matches_tx.send(result).ok();
}
fn fetch_albums(
musicbrainz: Arc<Mutex<dyn IMusicBrainz + Send>>,
matches_tx: FetchSender,
arid: Mbid,
albums: Vec<AlbumMeta>,
) {
let mut musicbrainz = musicbrainz.lock().unwrap();
let mut album_iter = albums.into_iter().peekable();
while let Some(album) = album_iter.next() {
if album.musicbrainz.is_some() {
continue;
}
let result = musicbrainz.search_release_group(&arid, &album);
let result = result.map(|list| AppMatchesInfo::album(album, list));
if matches_tx.send(result).is_err() {
// If receiver disconnects just drop the rest.
return;
}
if album_iter.peek().is_some() {
thread::sleep(time::Duration::from_secs(1));
}
}
AppMachine::app_fetch_new(self.inner)
}
}
#[cfg(test)]
mod tests {
use mockall::{predicate, Sequence};
use musichoard::collection::{album::AlbumMeta, artist::ArtistMeta, musicbrainz::Mbid};
use crate::tui::{
app::{
machine::tests::{inner, inner_with_mb, music_hoard},
AppAlbumMatches, AppArtistMatches, AppMatchesInfo, Category, IAppAccess, IAppInteract,
IAppInteractMatches, MatchOption,
Category, IAppAccess, IAppInteract,
},
lib::interface::musicbrainz::{self, Match, MockIMusicBrainz},
lib::interface::musicbrainz::MockIMusicBrainz,
testmod::COLLECTION,
};
@ -271,38 +168,7 @@ mod tests {
#[test]
fn fetch_musicbrainz() {
let mut mb_api = MockIMusicBrainz::new();
let arid: Mbid = "11111111-1111-1111-1111-111111111111".try_into().unwrap();
let album_1 = COLLECTION[1].albums[0].meta.clone();
let album_4 = COLLECTION[1].albums[3].meta.clone();
let album_match_1_1 = Match::new(100, album_1.clone());
let album_match_1_2 = Match::new(50, album_4.clone());
let album_match_4_1 = Match::new(100, album_4.clone());
let album_match_4_2 = Match::new(30, album_1.clone());
let matches_1 = vec![album_match_1_1.clone(), album_match_1_2.clone()];
let matches_4 = vec![album_match_4_1.clone(), album_match_4_2.clone()];
let result_1: Result<Vec<Match<AlbumMeta>>, musicbrainz::Error> = Ok(matches_1.clone());
let result_4: Result<Vec<Match<AlbumMeta>>, musicbrainz::Error> = Ok(matches_4.clone());
// Other albums have an MBID and so they will be skipped.
let mut seq = Sequence::new();
mb_api
.expect_search_release_group()
.with(predicate::eq(arid.clone()), predicate::eq(album_1.clone()))
.times(1)
.in_sequence(&mut seq)
.return_once(|_, _| result_1);
mb_api
.expect_search_release_group()
.with(predicate::eq(arid.clone()), predicate::eq(album_4.clone()))
.times(1)
.in_sequence(&mut seq)
.return_once(|_, _| result_4);
let mb_api = MockIMusicBrainz::new();
let browse = AppMachine::browse(inner_with_mb(music_hoard(COLLECTION.to_owned()), mb_api));
// Use the second artist for this test.
@ -310,172 +176,11 @@ mod tests {
let mut app = browse.fetch_musicbrainz();
let public = app.get();
assert!(matches!(public.state, AppState::Matches(_)));
let public_matches = public.state.unwrap_matches();
let mut matches_1: Vec<MatchOption<AlbumMeta>> =
matches_1.into_iter().map(Into::into).collect();
matches_1.push(MatchOption::CannotHaveMbid);
let expected = Some(AppMatchesInfo::Album(AppAlbumMatches {
matching: album_1.clone(),
list: matches_1.clone(),
}));
assert_eq!(public_matches.matches, expected.as_ref());
let mut app = app.unwrap_matches().select();
let public = app.get();
assert!(matches!(public.state, AppState::Matches(_)));
let public_matches = public.state.unwrap_matches();
let mut matches_4: Vec<MatchOption<AlbumMeta>> =
matches_4.into_iter().map(Into::into).collect();
matches_4.push(MatchOption::CannotHaveMbid);
let expected = Some(AppMatchesInfo::Album(AppAlbumMatches {
matching: album_4.clone(),
list: matches_4.clone(),
}));
assert_eq!(public_matches.matches, expected.as_ref());
let app = app.unwrap_matches().select();
app.unwrap_browse();
}
#[test]
fn fetch_musicbrainz_no_artist() {
let browse = AppMachine::browse(inner(music_hoard(vec![])));
let app = browse.fetch_musicbrainz();
app.unwrap_error();
}
#[test]
fn fetch_musicbrainz_no_artist_mbid() {
let mut mb_api = MockIMusicBrainz::new();
let artist = COLLECTION[3].meta.clone();
let artist_match_1 = Match::new(100, artist.clone());
let artist_match_2 = Match::new(50, artist.clone());
let matches = vec![artist_match_1.clone(), artist_match_2.clone()];
let result: Result<Vec<Match<ArtistMeta>>, musicbrainz::Error> = Ok(matches.clone());
mb_api
.expect_search_artist()
.with(predicate::eq(artist.clone()))
.times(1)
.return_once(|_| result);
let browse = AppMachine::browse(inner_with_mb(music_hoard(COLLECTION.to_owned()), mb_api));
// Use the fourth artist for this test as they have no MBID.
let browse = browse.increment_selection(Delta::Line).unwrap_browse();
let browse = browse.increment_selection(Delta::Line).unwrap_browse();
let browse = browse.increment_selection(Delta::Line).unwrap_browse();
let mut app = browse.fetch_musicbrainz();
let public = app.get();
assert!(matches!(public.state, AppState::Matches(_)));
let public_matches = public.state.unwrap_matches();
let mut matches: Vec<MatchOption<ArtistMeta>> =
matches.into_iter().map(Into::into).collect();
matches.push(MatchOption::CannotHaveMbid);
let expected = Some(AppMatchesInfo::Artist(AppArtistMatches {
matching: artist.clone(),
list: matches.clone(),
}));
assert_eq!(public_matches.matches, expected.as_ref());
let app = app.unwrap_matches().select();
app.unwrap_browse();
}
#[test]
fn fetch_musicbrainz_artist_api_error() {
let mut mb_api = MockIMusicBrainz::new();
let error = Err(musicbrainz::Error::RateLimit);
mb_api
.expect_search_artist()
.times(1)
.return_once(|_| error);
let browse = AppMachine::browse(inner_with_mb(music_hoard(COLLECTION.to_owned()), mb_api));
// Use the fourth artist for this test as they have no MBID.
let browse = browse.increment_selection(Delta::Line).unwrap_browse();
let browse = browse.increment_selection(Delta::Line).unwrap_browse();
let browse = browse.increment_selection(Delta::Line).unwrap_browse();
let app = browse.fetch_musicbrainz();
app.unwrap_error();
}
#[test]
fn fetch_musicbrainz_album_api_error() {
let mut mb_api = MockIMusicBrainz::new();
let error = Err(musicbrainz::Error::RateLimit);
mb_api
.expect_search_release_group()
.times(1)
.return_once(|_, _| error);
let browse = AppMachine::browse(inner_with_mb(music_hoard(COLLECTION.to_owned()), mb_api));
let app = browse.fetch_musicbrainz();
app.unwrap_error();
}
#[test]
fn fetch_musicbrainz_artist_receiver_disconnect() {
let (tx, rx) = mpsc::channel::<FetchResult>();
drop(rx);
let mut mb_api = MockIMusicBrainz::new();
mb_api
.expect_search_artist()
.times(1)
.return_once(|_| Ok(vec![]));
// We only check it does not panic and that it doesn't call the API more than once.
AppMachine::fetch_artist(Arc::new(Mutex::new(mb_api)), tx, COLLECTION[3].meta.clone());
}
#[test]
fn fetch_musicbrainz_albums_receiver_disconnect() {
let (tx, rx) = mpsc::channel::<FetchResult>();
drop(rx);
let mut mb_api = MockIMusicBrainz::new();
mb_api
.expect_search_release_group()
.times(1)
.return_once(|_, _| Ok(vec![]));
// We only check it does not panic and that it doesn't call the API more than once.
let mbref = &COLLECTION[1].meta.musicbrainz;
let albums = &COLLECTION[1].albums;
AppMachine::fetch_albums(
Arc::new(Mutex::new(mb_api)),
tx,
mbref.as_ref().unwrap().mbid().clone(),
albums.iter().map(|a| &a.meta).cloned().collect(),
// Because of fetch's threaded behaviour, this unit test cannot expect one or the other.
assert!(
matches!(public.state, AppState::Matches(_))
|| matches!(public.state, AppState::Fetch(_))
);
}
#[test]
fn no_op() {
let browse = AppMachine::browse(inner(music_hoard(vec![])));
let app = browse.no_op();
app.unwrap_browse();
}
}

24
src/tui/app/machine/critical.rs
View File

@ -1,6 +1,6 @@
use crate::tui::app::{
machine::{App, AppInner, AppMachine},
AppPublic, AppState, IAppInteractCritical,
AppPublic, AppState,
};
pub struct AppCritical {
@ -32,25 +32,3 @@ impl<'a> From<&'a mut AppMachine<AppCritical>> for AppPublic<'a> {
}
}
}
impl IAppInteractCritical for AppMachine<AppCritical> {
type APP = App;
fn no_op(self) -> Self::APP {
self.into()
}
}
#[cfg(test)]
mod tests {
use crate::tui::app::machine::tests::{inner, music_hoard};
use super::*;
#[test]
fn no_op() {
let critical = AppMachine::critical(inner(music_hoard(vec![])), "get rekt");
let app = critical.no_op();
app.unwrap_critical();
}
}

486
src/tui/app/machine/fetch.rs Normal file
View File

@ -0,0 +1,486 @@
use std::{
sync::{
mpsc::{self, TryRecvError},
Arc, Mutex,
},
thread, time,
};
use musichoard::collection::{
album::AlbumMeta,
artist::{Artist, ArtistMeta},
musicbrainz::{IMusicBrainzRef, Mbid},
};
use crate::tui::{
app::{
machine::{App, AppInner, AppMachine},
AppMatchesInfo, AppPublic, AppState, IAppEventFetch, IAppInteractFetch,
},
event::{Event, EventSender},
lib::interface::musicbrainz::{self, Error as MbError, IMusicBrainz},
};
use super::matches::AppMatches;
pub struct AppFetch {
fetch_rx: FetchReceiver,
}
impl AppFetch {
pub fn new(fetch_rx: FetchReceiver) -> Self {
AppFetch { fetch_rx }
}
}
pub type FetchError = MbError;
pub type FetchResult = Result<AppMatchesInfo, FetchError>;
pub type FetchSender = mpsc::Sender<FetchResult>;
pub type FetchReceiver = mpsc::Receiver<FetchResult>;
impl AppMachine<AppFetch> {
fn fetch(inner: AppInner, state: AppFetch) -> Self {
AppMachine { inner, state }
}
pub fn app_fetch_new(inner: AppInner) -> App {
let coll = inner.music_hoard.get_collection();
let artist = match inner.selection.state_artist(coll) {
Some(artist_state) => &coll[artist_state.index],
None => return AppMachine::error(inner, "cannot fetch: no artist selected").into(),
};
let (fetch_tx, fetch_rx) = mpsc::channel::<FetchResult>();
Self::spawn_fetch_thread(&inner, artist, fetch_tx);
let fetch = AppFetch::new(fetch_rx);
AppMachine::app_fetch(inner, fetch, true)
}
pub fn app_fetch_next(inner: AppInner, fetch: AppFetch) -> App {
Self::app_fetch(inner, fetch, false)
}
fn app_fetch(inner: AppInner, fetch: AppFetch, first: bool) -> App {
match fetch.fetch_rx.try_recv() {
Ok(fetch_result) => match fetch_result {
Ok(next_match) => {
let current = Some(next_match);
AppMachine::matches(inner, AppMatches::new(current, fetch)).into()
}
Err(fetch_err) => {
AppMachine::error(inner, format!("fetch failed: {fetch_err}")).into()
}
},
Err(recv_err) => match recv_err {
TryRecvError::Empty => AppMachine::fetch(inner, fetch).into(),
TryRecvError::Disconnected => {
if first {
AppMachine::matches(inner, AppMatches::new(None, fetch)).into()
} else {
AppMachine::browse(inner).into()
}
}
},
}
}
fn spawn_fetch_thread(
inner: &AppInner,
artist: &Artist,
tx: FetchSender,
) -> thread::JoinHandle<()> {
match artist.meta.musicbrainz {
Some(ref arid) => {
let musicbrainz = Arc::clone(&inner.musicbrainz);
let events = inner.events.clone();
let arid = arid.mbid().clone();
let albums = artist.albums.iter().map(|a| &a.meta).cloned().collect();
thread::spawn(|| Self::fetch_albums(musicbrainz, tx, events, arid, albums))
}
None => {
let musicbrainz = Arc::clone(&inner.musicbrainz);
let events = inner.events.clone();
let artist = artist.meta.clone();
thread::spawn(|| Self::fetch_artist(musicbrainz, tx, events, artist))
}
}
}
fn fetch_artist(
musicbrainz: Arc<Mutex<dyn IMusicBrainz + Send>>,
fetch_tx: FetchSender,
events: EventSender,
artist: ArtistMeta,
) {
let result = musicbrainz.lock().unwrap().search_artist(&artist);
let result = result.map(|list| AppMatchesInfo::artist(artist, list));
Self::send_fetch_result(&fetch_tx, &events, result).ok();
}
fn fetch_albums(
musicbrainz: Arc<Mutex<dyn IMusicBrainz + Send>>,
fetch_tx: FetchSender,
events: EventSender,
arid: Mbid,
albums: Vec<AlbumMeta>,
) {
let mut musicbrainz = musicbrainz.lock().unwrap();
let mut album_iter = albums.into_iter().peekable();
while let Some(album) = album_iter.next() {
if album.musicbrainz.is_some() {
continue;
}
let result = musicbrainz.search_release_group(&arid, &album);
let result = result.map(|list| AppMatchesInfo::album(album, list));
if Self::send_fetch_result(&fetch_tx, &events, result).is_err() {
return;
};
if album_iter.peek().is_some() {
thread::sleep(time::Duration::from_secs(1));
}
}
}
fn send_fetch_result(
fetch_tx: &FetchSender,
events: &EventSender,
result: Result<AppMatchesInfo, musicbrainz::Error>,
) -> Result<(), ()> {
// If receiver disconnects just drop the rest.
fetch_tx.send(result).map_err(|_| ())?;
// If this send fails the event listener is dead. Don't panic as this function runs in a
// detached thread so this might be happening during normal shut down.
events.send(Event::FetchResultReady).map_err(|_| ())?;
Ok(())
}
}
impl From<AppMachine<AppFetch>> for App {
fn from(machine: AppMachine<AppFetch>) -> Self {
AppState::Fetch(machine)
}
}
impl<'a> From<&'a mut AppMachine<AppFetch>> for AppPublic<'a> {
fn from(machine: &'a mut AppMachine<AppFetch>) -> Self {
AppPublic {
inner: (&mut machine.inner).into(),
state: AppState::Fetch(()),
}
}
}
impl IAppInteractFetch for AppMachine<AppFetch> {
type APP = App;
fn abort(self) -> Self::APP {
AppMachine::browse(self.inner).into()
}
}
impl IAppEventFetch for AppMachine<AppFetch> {
type APP = App;
fn fetch_result_ready(self) -> Self::APP {
Self::app_fetch_next(self.inner, self.state)
}
}
#[cfg(test)]
mod tests {
use mockall::{predicate, Sequence};
use musichoard::collection::artist::ArtistMeta;
use crate::tui::{
app::{
machine::tests::{inner, music_hoard},
AppAlbumMatches, AppArtistMatches, IAppInteract,
},
event::EventReceiver,
lib::interface::musicbrainz::{self, Match, MockIMusicBrainz},
testmod::COLLECTION,
EventChannel,
};
use super::*;
#[test]
fn fetch_no_artist() {
let app = AppMachine::app_fetch_new(inner(music_hoard(vec![])));
assert!(matches!(app.state(), AppState::Error(_)));
}
fn event_channel() -> (EventSender, EventReceiver) {
let event_channel = EventChannel::new();
let events_tx = event_channel.sender();
let events_rx = event_channel.receiver();
(events_tx, events_rx)
}
fn album_expectations_1() -> (AlbumMeta, Vec<Match<AlbumMeta>>) {
let album_1 = COLLECTION[1].albums[0].meta.clone();
let album_4 = COLLECTION[1].albums[3].meta.clone();
let album_match_1_1 = Match::new(100, album_1.clone());
let album_match_1_2 = Match::new(50, album_4.clone());
let matches_1 = vec![album_match_1_1.clone(), album_match_1_2.clone()];
(album_1, matches_1)
}
fn album_expectations_4() -> (AlbumMeta, Vec<Match<AlbumMeta>>) {
let album_1 = COLLECTION[1].albums[0].meta.clone();
let album_4 = COLLECTION[1].albums[3].meta.clone();
let album_match_4_1 = Match::new(100, album_4.clone());
let album_match_4_2 = Match::new(30, album_1.clone());
let matches_4 = vec![album_match_4_1.clone(), album_match_4_2.clone()];
(album_4, matches_4)
}
fn search_release_group_expectation(
api: &mut MockIMusicBrainz,
seq: &mut Sequence,
arid: &Mbid,
album: &AlbumMeta,
matches: &[Match<AlbumMeta>],
) {
let result = Ok(matches.to_owned());
api.expect_search_release_group()
.with(predicate::eq(arid.clone()), predicate::eq(album.clone()))
.times(1)
.in_sequence(seq)
.return_once(|_, _| result);
}
#[test]
fn fetch_albums() {
let mut mb_api = MockIMusicBrainz::new();
let arid: Mbid = "11111111-1111-1111-1111-111111111111".try_into().unwrap();
let (album_1, matches_1) = album_expectations_1();
let (album_4, matches_4) = album_expectations_4();
// Other albums have an MBID and so they will be skipped.
let mut seq = Sequence::new();
search_release_group_expectation(&mut mb_api, &mut seq, &arid, &album_1, &matches_1);
search_release_group_expectation(&mut mb_api, &mut seq, &arid, &album_4, &matches_4);
let music_hoard = music_hoard(COLLECTION.to_owned());
let (events_tx, events_rx) = event_channel();
let inner = AppInner::new(music_hoard, mb_api, events_tx);
let (fetch_tx, fetch_rx) = mpsc::channel();
// Use the second artist for this test.
let handle = AppMachine::spawn_fetch_thread(&inner, &COLLECTION[1], fetch_tx);
handle.join().unwrap();
assert_eq!(events_rx.try_recv().unwrap(), Event::FetchResultReady);
let result = fetch_rx.try_recv().unwrap();
let expected = Ok(AppMatchesInfo::Album(AppAlbumMatches {
matching: album_1.clone(),
list: matches_1.iter().cloned().map(Into::into).collect(),
}));
assert_eq!(result, expected);
assert_eq!(events_rx.try_recv().unwrap(), Event::FetchResultReady);
let result = fetch_rx.try_recv().unwrap();
let expected = Ok(AppMatchesInfo::Album(AppAlbumMatches {
matching: album_4.clone(),
list: matches_4.iter().cloned().map(Into::into).collect(),
}));
assert_eq!(result, expected);
}
fn artist_expectations() -> (ArtistMeta, Vec<Match<ArtistMeta>>) {
let artist = COLLECTION[3].meta.clone();
let artist_match_1 = Match::new(100, artist.clone());
let artist_match_2 = Match::new(50, artist.clone());
let matches = vec![artist_match_1.clone(), artist_match_2.clone()];
(artist, matches)
}
fn search_artist_expectation(
api: &mut MockIMusicBrainz,
seq: &mut Sequence,
artist: &ArtistMeta,
matches: &[Match<ArtistMeta>],
) {
let result = Ok(matches.to_owned());
api.expect_search_artist()
.with(predicate::eq(artist.clone()))
.times(1)
.in_sequence(seq)
.return_once(|_| result);
}
#[test]
fn fetch_artist() {
let mut mb_api = MockIMusicBrainz::new();
let (artist, matches) = artist_expectations();
let mut seq = Sequence::new();
search_artist_expectation(&mut mb_api, &mut seq, &artist, &matches);
let music_hoard = music_hoard(COLLECTION.to_owned());
let (events_tx, events_rx) = event_channel();
let inner = AppInner::new(music_hoard, mb_api, events_tx);
let (fetch_tx, fetch_rx) = mpsc::channel();
// Use the fourth artist for this test as they have no MBID.
let handle = AppMachine::spawn_fetch_thread(&inner, &COLLECTION[3], fetch_tx);
handle.join().unwrap();
assert_eq!(events_rx.try_recv().unwrap(), Event::FetchResultReady);
let result = fetch_rx.try_recv().unwrap();
let expected = Ok(AppMatchesInfo::Artist(AppArtistMatches {
matching: artist.clone(),
list: matches.iter().cloned().map(Into::into).collect(),
}));
assert_eq!(result, expected);
}
#[test]
fn fetch_artist_fetch_disconnect() {
let mut mb_api = MockIMusicBrainz::new();
let (artist, matches) = artist_expectations();
let mut seq = Sequence::new();
search_artist_expectation(&mut mb_api, &mut seq, &artist, &matches);
let music_hoard = music_hoard(COLLECTION.to_owned());
let (events_tx, events_rx) = event_channel();
let inner = AppInner::new(music_hoard, mb_api, events_tx);
let (fetch_tx, _) = mpsc::channel();
// Use the fourth artist for this test as they have no MBID.
let handle = AppMachine::spawn_fetch_thread(&inner, &COLLECTION[3], fetch_tx);
handle.join().unwrap();
assert!(events_rx.try_recv().is_err());
}
#[test]
fn fetch_albums_event_disconnect() {
let mut mb_api = MockIMusicBrainz::new();
let arid: Mbid = "11111111-1111-1111-1111-111111111111".try_into().unwrap();
let (album_1, matches_1) = album_expectations_1();
let mut seq = Sequence::new();
search_release_group_expectation(&mut mb_api, &mut seq, &arid, &album_1, &matches_1);
let music_hoard = music_hoard(COLLECTION.to_owned());
let (events_tx, _) = event_channel();
let inner = AppInner::new(music_hoard, mb_api, events_tx);
let (fetch_tx, fetch_rx) = mpsc::channel();
// Use the second artist for this test.
let handle = AppMachine::spawn_fetch_thread(&inner, &COLLECTION[1], fetch_tx);
handle.join().unwrap();
let result = fetch_rx.try_recv().unwrap();
let expected = Ok(AppMatchesInfo::Album(AppAlbumMatches {
matching: album_1.clone(),
list: matches_1.iter().cloned().map(Into::into).collect(),
}));
assert_eq!(result, expected);
assert_eq!(fetch_rx.try_recv().unwrap_err(), TryRecvError::Disconnected);
}
#[test]
fn recv_ok_fetch_ok() {
let (tx, rx) = mpsc::channel::<FetchResult>();
let artist = COLLECTION[3].meta.clone();
let fetch_result = Ok(AppMatchesInfo::artist::<Match<ArtistMeta>>(artist, vec![]));
tx.send(fetch_result).unwrap();
let inner = inner(music_hoard(COLLECTION.clone()));
let fetch = AppFetch::new(rx);
let app = AppMachine::app_fetch(inner, fetch, true);
assert!(matches!(app, AppState::Matches(_)));
}
#[test]
fn recv_ok_fetch_err() {
let (tx, rx) = mpsc::channel::<FetchResult>();
let fetch_result = Err(musicbrainz::Error::RateLimit);
tx.send(fetch_result).unwrap();
let inner = inner(music_hoard(COLLECTION.clone()));
let fetch = AppFetch::new(rx);
let app = AppMachine::app_fetch(inner, fetch, true);
assert!(matches!(app, AppState::Error(_)));
}
#[test]
fn recv_err_empty() {
let (_tx, rx) = mpsc::channel::<FetchResult>();
let inner = inner(music_hoard(COLLECTION.clone()));
let fetch = AppFetch::new(rx);
let app = AppMachine::app_fetch(inner, fetch, true);
assert!(matches!(app, AppState::Fetch(_)));
}
#[test]
fn recv_err_disconnected_first() {
let (_, rx) = mpsc::channel::<FetchResult>();
let inner = inner(music_hoard(COLLECTION.clone()));
let fetch = AppFetch::new(rx);
let app = AppMachine::app_fetch(inner, fetch, true);
assert!(matches!(app, AppState::Matches(_)));
}
#[test]
fn recv_err_disconnected_next() {
let (_, rx) = mpsc::channel::<FetchResult>();
let fetch = AppFetch::new(rx);
let app = AppMachine::app_fetch_next(inner(music_hoard(COLLECTION.clone())), fetch);
assert!(matches!(app, AppState::Browse(_)));
}
#[test]
fn empty_first_then_ready() {
let (tx, rx) = mpsc::channel::<FetchResult>();
let inner = inner(music_hoard(COLLECTION.clone()));
let fetch = AppFetch::new(rx);
let app = AppMachine::app_fetch(inner, fetch, true);
assert!(matches!(app, AppState::Fetch(_)));
let artist = COLLECTION[3].meta.clone();
let fetch_result = Ok(AppMatchesInfo::artist::<Match<ArtistMeta>>(artist, vec![]));
tx.send(fetch_result).unwrap();
let app = app.unwrap_fetch().fetch_result_ready();
assert!(matches!(app, AppState::Matches(_)));
}
#[test]
fn abort() {
let (_, rx) = mpsc::channel::<FetchResult>();
let fetch = AppFetch::new(rx);
let app = AppMachine::fetch(inner(music_hoard(COLLECTION.clone())), fetch);
let app = app.abort();
assert!(matches!(app, AppState::Browse(_)));
}
}

11
src/tui/app/machine/info.rs
View File

@ -35,10 +35,6 @@ impl IAppInteractInfo for AppMachine<AppInfo> {
fn hide_info_overlay(self) -> Self::APP {
AppMachine::browse(self.inner).into()
}
fn no_op(self) -> Self::APP {
self.into()
}
}
#[cfg(test)]
@ -53,11 +49,4 @@ mod tests {
let app = info.hide_info_overlay();
app.unwrap_browse();
}
#[test]
fn no_op() {
let info = AppMachine::info(inner(music_hoard(vec![])));
let app = info.no_op();
app.unwrap_info();
}
}

241
src/tui/app/machine/matches.rs
View File

@ -1,11 +1,13 @@
use std::cmp;
use crate::tui::app::{
machine::{browse::FetchReceiver, App, AppInner, AppMachine},
machine::{App, AppInner, AppMachine},
AppAlbumMatches, AppArtistMatches, AppMatchesInfo, AppPublic, AppPublicMatches, AppState,
IAppInteractMatches, MatchOption, WidgetState,
};
use super::fetch::AppFetch;
impl AppArtistMatches {
fn len(&self) -> usize {
self.list.len()
@ -34,7 +36,7 @@ impl AppMatchesInfo {
}
}
fn push_cannot_have_mbid(&mut self) {
pub fn push_cannot_have_mbid(&mut self) {
match self {
Self::Artist(a) => a.push_cannot_have_mbid(),
Self::Album(a) => a.push_cannot_have_mbid(),
@ -43,29 +45,30 @@ impl AppMatchesInfo {
}
pub struct AppMatches {
matches_rx: FetchReceiver,
current: Option<AppMatchesInfo>,
state: WidgetState,
fetch: AppFetch,
}
impl AppMatches {
fn empty(matches_rx: FetchReceiver) -> Self {
pub fn new(mut current: Option<AppMatchesInfo>, fetch: AppFetch) -> Self {
let mut state = WidgetState::default();
if let Some(ref mut current) = current {
state.list.select(Some(0));
current.push_cannot_have_mbid();
}
AppMatches {
matches_rx,
current: None,
state: WidgetState::default(),
current,
state,
fetch,
}
}
}
impl AppMachine<AppMatches> {
fn matches(inner: AppInner, state: AppMatches) -> Self {
pub fn matches(inner: AppInner, state: AppMatches) -> Self {
AppMachine { inner, state }
}
pub fn app_matches(inner: AppInner, matches_rx: FetchReceiver) -> App {
AppMachine::matches(inner, AppMatches::empty(matches_rx)).fetch_first()
}
}
impl From<AppMachine<AppMatches>> for App {
@ -113,57 +116,12 @@ impl IAppInteractMatches for AppMachine<AppMatches> {
}
fn select(self) -> Self::APP {
self.fetch_next()
AppMachine::app_fetch_next(self.inner, self.state.fetch)
}
fn abort(self) -> Self::APP {
AppMachine::browse(self.inner).into()
}
fn no_op(self) -> Self::APP {
self.into()
}
}
trait IAppInteractMatchesPrivate
where
Self: Sized,
{
fn fetch_first(self) -> App;
fn fetch_next(self) -> App;
fn fetch(self, first: bool) -> App;
}
impl IAppInteractMatchesPrivate for AppMachine<AppMatches> {
fn fetch_first(self) -> App {
self.fetch(true)
}
fn fetch_next(self) -> App {
self.fetch(false)
}
fn fetch(mut self, first: bool) -> App {
match self.state.matches_rx.recv() {
Ok(fetch_result) => match fetch_result {
Ok(mut next_match) => {
next_match.push_cannot_have_mbid();
self.state.current = Some(next_match);
self.state.state.list.select(Some(0));
AppMachine::matches(self.inner, self.state).into()
}
Err(err) => AppMachine::error(self.inner, format!("fetch failed: {err}")).into(),
},
// only happens when the sender disconnects which means it finished its job
Err(_) => {
if first {
AppMachine::matches(self.inner, AppMatches::empty(self.state.matches_rx)).into()
} else {
AppMachine::browse(self.inner).into()
}
}
}
}
}
#[cfg(test)]
@ -195,90 +153,59 @@ mod tests {
}
}
fn artist_matches_info_vec() -> Vec<AppMatchesInfo> {
let artist_1 = ArtistMeta::new(ArtistId::new("Artist 1"));
fn artist_match() -> AppMatchesInfo {
let artist = ArtistMeta::new(ArtistId::new("Artist"));
let artist_1_1 = artist_1.clone();
let artist_match_1_1 = Match::new(100, artist_1_1);
let artist_1 = artist.clone();
let artist_match_1 = Match::new(100, artist_1);
let artist_1_2 = artist_1.clone();
let mut artist_match_1_2 = Match::new(100, artist_1_2);
artist_match_1_2.disambiguation = Some(String::from("some disambiguation"));
let artist_2 = artist.clone();
let mut artist_match_2 = Match::new(100, artist_2);
artist_match_2.disambiguation = Some(String::from("some disambiguation"));
let list = vec![artist_match_1_1.clone(), artist_match_1_2.clone()];
let matches_info_1 = AppMatchesInfo::artist(artist_1.clone(), list);
let artist_2 = ArtistMeta::new(ArtistId::new("Artist 2"));
let artist_2_1 = artist_1.clone();
let album_match_2_1 = Match::new(100, artist_2_1);
let list = vec![album_match_2_1.clone()];
let matches_info_2 = AppMatchesInfo::artist(artist_2.clone(), list);
vec![matches_info_1, matches_info_2]
let list = vec![artist_match_1.clone(), artist_match_2.clone()];
AppMatchesInfo::artist(artist, list)
}
fn album_matches_info_vec() -> Vec<AppMatchesInfo> {
let album_1 = AlbumMeta::new(
AlbumId::new("Album 1"),
fn album_match() -> AppMatchesInfo {
let album = AlbumMeta::new(
AlbumId::new("Album"),
AlbumDate::new(Some(1990), Some(5), None),
Some(AlbumPrimaryType::Album),
vec![AlbumSecondaryType::Live, AlbumSecondaryType::Compilation],
);
let album_1_1 = album_1.clone();
let album_match_1_1 = Match::new(100, album_1_1);
let album_1 = album.clone();
let album_match_1 = Match::new(100, album_1);
let mut album_1_2 = album_1.clone();
album_1_2.id.title.push_str(" extra title part");
album_1_2.secondary_types.pop();
let album_match_1_2 = Match::new(100, album_1_2);
let mut album_2 = album.clone();
album_2.id.title.push_str(" extra title part");
album_2.secondary_types.pop();
let album_match_2 = Match::new(100, album_2);
let list = vec![album_match_1_1.clone(), album_match_1_2.clone()];
let matches_info_1 = AppMatchesInfo::album(album_1.clone(), list);
let album_2 = AlbumMeta::new(
AlbumId::new("Album 2"),
AlbumDate::new(Some(2001), None, None),
Some(AlbumPrimaryType::Album),
vec![],
);
let album_2_1 = album_1.clone();
let album_match_2_1 = Match::new(100, album_2_1);
let list = vec![album_match_2_1.clone()];
let matches_info_2 = AppMatchesInfo::album(album_2.clone(), list);
vec![matches_info_1, matches_info_2]
let list = vec![album_match_1.clone(), album_match_2.clone()];
AppMatchesInfo::album(album, list)
}
fn receiver(matches_info_vec: Vec<AppMatchesInfo>) -> FetchReceiver {
let (tx, rx) = mpsc::channel();
for matches_info in matches_info_vec.into_iter() {
tx.send(Ok(matches_info)).unwrap();
}
rx
fn fetch() -> AppFetch {
let (_, rx) = mpsc::channel();
AppFetch::new(rx)
}
fn push_cannot_have_mbid(matches_info_vec: &mut [AppMatchesInfo]) {
for matches_info in matches_info_vec.iter_mut() {
matches_info.push_cannot_have_mbid();
}
fn matches(matches_info: Option<AppMatchesInfo>) -> AppMatches {
AppMatches::new(matches_info, fetch())
}
#[test]
fn create_empty() {
let matches =
AppMachine::app_matches(inner(music_hoard(vec![])), receiver(vec![])).unwrap_matches();
let matches = AppMachine::matches(inner(music_hoard(vec![])), matches(None));
let widget_state = WidgetState::default();
assert_eq!(matches.state.current, None);
assert_eq!(matches.state.state, widget_state);
let mut app = matches.no_op();
let mut app: App = matches.into();
let public = app.get();
let public_matches = public.state.unwrap_matches();
@ -288,96 +215,90 @@ mod tests {
#[test]
fn create_nonempty() {
let mut matches_info_vec = album_matches_info_vec();
let matches = AppMachine::app_matches(
let mut album_match = album_match();
let matches = AppMachine::matches(
inner(music_hoard(vec![])),
receiver(matches_info_vec.clone()),
)
.unwrap_matches();
push_cannot_have_mbid(&mut matches_info_vec);
matches(Some(album_match.clone())),
);
album_match.push_cannot_have_mbid();
let mut widget_state = WidgetState::default();
widget_state.list.select(Some(0));
assert_eq!(matches.state.current.as_ref(), Some(&matches_info_vec[0]));
assert_eq!(matches.state.current.as_ref(), Some(&album_match));
assert_eq!(matches.state.state, widget_state);
let mut app = matches.no_op();
let mut app: App = matches.into();
let public = app.get();
let public_matches = public.state.unwrap_matches();
assert_eq!(public_matches.matches, Some(&matches_info_vec[0]));
assert_eq!(public_matches.matches, Some(&album_match));
assert_eq!(public_matches.state, &widget_state);
}
fn matches_flow(mut matches_info_vec: Vec<AppMatchesInfo>) {
let matches = AppMachine::app_matches(
inner(music_hoard(vec![])),
receiver(matches_info_vec.clone()),
)
.unwrap_matches();
push_cannot_have_mbid(&mut matches_info_vec);
fn matches_flow(mut matches_info: AppMatchesInfo) {
// tx must exist for rx to return Empty rather than Disconnected.
#[allow(unused_variables)]
let (tx, rx) = mpsc::channel();
let app_matches = AppMatches::new(Some(matches_info.clone()), AppFetch::new(rx));
let matches = AppMachine::matches(inner(music_hoard(vec![])), app_matches);
matches_info.push_cannot_have_mbid();
let mut widget_state = WidgetState::default();
widget_state.list.select(Some(0));
assert_eq!(matches.state.current.as_ref(), Some(&matches_info_vec[0]));
assert_eq!(matches.state.current.as_ref(), Some(&matches_info));
assert_eq!(matches.state.state, widget_state);
let matches = matches.prev_match().unwrap_matches();
assert_eq!(matches.state.current.as_ref(), Some(&matches_info_vec[0]));
assert_eq!(matches.state.current.as_ref(), Some(&matches_info));
assert_eq!(matches.state.state.list.selected(), Some(0));
let matches = matches.next_match().unwrap_matches();
assert_eq!(matches.state.current.as_ref(), Some(&matches_info_vec[0]));
assert_eq!(matches.state.current.as_ref(), Some(&matches_info));
assert_eq!(matches.state.state.list.selected(), Some(1));
// Next is CannotHaveMBID
let matches = matches.next_match().unwrap_matches();
assert_eq!(matches.state.current.as_ref(), Some(&matches_info_vec[0]));
assert_eq!(matches.state.current.as_ref(), Some(&matches_info));
assert_eq!(matches.state.state.list.selected(), Some(2));
let matches = matches.next_match().unwrap_matches();
assert_eq!(matches.state.current.as_ref(), Some(&matches_info_vec[0]));
assert_eq!(matches.state.current.as_ref(), Some(&matches_info));
assert_eq!(matches.state.state.list.selected(), Some(2));
let matches = matches.select().unwrap_matches();
assert_eq!(matches.state.current.as_ref(), Some(&matches_info_vec[1]));
assert_eq!(matches.state.state.list.selected(), Some(0));
// And it's done
matches.select().unwrap_browse();
matches.select().unwrap_fetch();
}
#[test]
fn artist_matches_flow() {
matches_flow(artist_matches_info_vec());
matches_flow(artist_match());
}
#[test]
fn album_matches_flow() {
matches_flow(album_matches_info_vec());
matches_flow(album_match());
}
#[test]
fn matches_abort() {
let mut matches_info_vec = album_matches_info_vec();
let matches = AppMachine::app_matches(
let mut album_match = album_match();
let matches = AppMachine::matches(
inner(music_hoard(vec![])),
receiver(matches_info_vec.clone()),
)
.unwrap_matches();
push_cannot_have_mbid(&mut matches_info_vec);
matches(Some(album_match.clone())),
);
album_match.push_cannot_have_mbid();
let mut widget_state = WidgetState::default();
widget_state.list.select(Some(0));
assert_eq!(matches.state.current.as_ref(), Some(&matches_info_vec[0]));
assert_eq!(matches.state.current.as_ref(), Some(&album_match));
assert_eq!(matches.state.state, widget_state);
matches.abort().unwrap_browse();
@ -385,19 +306,9 @@ mod tests {
#[test]
fn matches_select_empty() {
let matches =
AppMachine::app_matches(inner(music_hoard(vec![])), receiver(vec![])).unwrap_matches();
assert_eq!(matches.state.current, None);
// Note that what really matters in this test is actually that the transmit channel has
// disconnected and so the receive within AppFetch concludes there are no more matches.
let matches = AppMachine::matches(inner(music_hoard(vec![])), matches(None));
matches.select().unwrap_browse();
}
#[test]
fn no_op() {
let matches =
AppMachine::app_matches(inner(music_hoard(vec![])), receiver(vec![])).unwrap_matches();
let app = matches.no_op();
app.unwrap_matches();
}
}

133
src/tui/app/machine/mod.rs
View File

@ -1,6 +1,7 @@
mod browse;
mod critical;
mod error;
mod fetch;
mod info;
mod matches;
mod reload;
@ -10,22 +11,27 @@ use std::sync::{Arc, Mutex};
use crate::tui::{
app::{selection::Selection, AppPublic, AppPublicInner, AppState, IAppAccess, IAppInteract},
event::EventSender,
lib::{interface::musicbrainz::IMusicBrainz, IMusicHoard},
};
use browse::AppBrowse;
use critical::AppCritical;
use error::AppError;
use fetch::AppFetch;
use info::AppInfo;
use matches::AppMatches;
use reload::AppReload;
use search::AppSearch;
use super::IAppBase;
pub type App = AppState<
AppMachine<AppBrowse>,
AppMachine<AppInfo>,
AppMachine<AppReload>,
AppMachine<AppSearch>,
AppMachine<AppFetch>,
AppMachine<AppMatches>,
AppMachine<AppError>,
AppMachine<AppCritical>,
@ -41,15 +47,17 @@ pub struct AppInner {
music_hoard: Box<dyn IMusicHoard>,
musicbrainz: Arc<Mutex<dyn IMusicBrainz + Send>>,
selection: Selection,
events: EventSender,
}
impl App {
pub fn new<MH: IMusicHoard + 'static, MB: IMusicBrainz + Send + 'static>(
mut music_hoard: MH,
musicbrainz: MB,
events: EventSender,
) -> Self {
let init_result = Self::init(&mut music_hoard);
let inner = AppInner::new(music_hoard, musicbrainz);
let inner = AppInner::new(music_hoard, musicbrainz, events);
match init_result {
Ok(()) => AppMachine::browse(inner).into(),
Err(err) => AppMachine::critical(inner, err.to_string()).into(),
@ -65,9 +73,10 @@ impl App {
match self {
AppState::Browse(browse) => &browse.inner,
AppState::Info(info) => &info.inner,
AppState::Matches(matches) => &matches.inner,
AppState::Reload(reload) => &reload.inner,
AppState::Search(search) => &search.inner,
AppState::Fetch(fetch) => &fetch.inner,
AppState::Matches(matches) => &matches.inner,
AppState::Error(error) => &error.inner,
AppState::Critical(critical) => &critical.inner,
}
@ -77,9 +86,10 @@ impl App {
match self {
AppState::Browse(browse) => &mut browse.inner,
AppState::Info(info) => &mut info.inner,
AppState::Matches(matches) => &mut matches.inner,
AppState::Reload(reload) => &mut reload.inner,
AppState::Search(search) => &mut search.inner,
AppState::Fetch(fetch) => &mut fetch.inner,
AppState::Matches(matches) => &mut matches.inner,
AppState::Error(error) => &mut error.inner,
AppState::Critical(critical) => &mut critical.inner,
}
@ -91,6 +101,7 @@ impl IAppInteract for App {
type IS = AppMachine<AppInfo>;
type RS = AppMachine<AppReload>;
type SS = AppMachine<AppSearch>;
type FS = AppMachine<AppFetch>;
type MS = AppMachine<AppMatches>;
type ES = AppMachine<AppError>;
type CS = AppMachine<AppCritical>;
@ -106,19 +117,29 @@ impl IAppInteract for App {
fn state(
self,
) -> AppState<Self::BS, Self::IS, Self::RS, Self::SS, Self::MS, Self::ES, Self::CS> {
) -> AppState<Self::BS, Self::IS, Self::RS, Self::SS, Self::FS, Self::MS, Self::ES, Self::CS>
{
self
}
}
impl<T: Into<App>> IAppBase for T {
type APP = App;
fn no_op(self) -> Self::APP {
self.into()
}
}
impl IAppAccess for App {
fn get(&mut self) -> AppPublic {
match self {
AppState::Browse(browse) => browse.into(),
AppState::Info(info) => info.into(),
AppState::Matches(matches) => matches.into(),
AppState::Reload(reload) => reload.into(),
AppState::Search(search) => search.into(),
AppState::Fetch(fetch) => fetch.into(),
AppState::Matches(matches) => matches.into(),
AppState::Error(error) => error.into(),
AppState::Critical(critical) => critical.into(),
}
@ -129,6 +150,7 @@ impl AppInner {
pub fn new<MH: IMusicHoard + 'static, MB: IMusicBrainz + Send + 'static>(
music_hoard: MH,
musicbrainz: MB,
events: EventSender,
) -> Self {
let selection = Selection::new(music_hoard.get_collection());
AppInner {
@ -136,6 +158,7 @@ impl AppInner {
music_hoard: Box::new(music_hoard),
musicbrainz: Arc::new(Mutex::new(musicbrainz)),
selection,
events,
}
}
}
@ -158,11 +181,12 @@ mod tests {
use crate::tui::{
app::{AppState, IAppInteract, IAppInteractBrowse},
lib::{interface::musicbrainz::MockIMusicBrainz, MockIMusicHoard},
EventChannel,
};
use super::*;
impl<BS, IS, RS, SS, MS, ES, CS> AppState<BS, IS, RS, SS, MS, ES, CS> {
impl<BS, IS, RS, SS, FS, MS, ES, CS> AppState<BS, IS, RS, SS, FS, MS, ES, CS> {
pub fn unwrap_browse(self) -> BS {
match self {
AppState::Browse(browse) => browse,
@ -191,6 +215,13 @@ mod tests {
}
}
pub fn unwrap_fetch(self) -> FS {
match self {
AppState::Fetch(fetch) => fetch,
_ => panic!(),
}
}
pub fn unwrap_matches(self) -> MS {
match self {
AppState::Matches(matches) => matches,
@ -235,23 +266,32 @@ mod tests {
MockIMusicBrainz::new()
}
fn events() -> EventSender {
EventChannel::new().sender()
}
pub fn inner(music_hoard: MockIMusicHoard) -> AppInner {
AppInner::new(music_hoard, mb_api())
AppInner::new(music_hoard, mb_api(), events())
}
pub fn inner_with_mb(music_hoard: MockIMusicHoard, mb_api: MockIMusicBrainz) -> AppInner {
AppInner::new(music_hoard, mb_api)
AppInner::new(music_hoard, mb_api, events())
}
#[test]
fn state_browse() {
let mut app = App::new(music_hoard_init(vec![]), mb_api());
let mut app = App::new(music_hoard_init(vec![]), mb_api(), events());
assert!(app.is_running());
let state = app.state();
assert!(matches!(state, AppState::Browse(_)));
app = state;
app = app.no_op();
let state = app.state();
assert!(matches!(state, AppState::Browse(_)));
app = state;
let public = app.get();
assert!(matches!(public.state, AppState::Browse(_)));
@ -261,7 +301,7 @@ mod tests {
#[test]
fn state_info() {
let mut app = App::new(music_hoard_init(vec![]), mb_api());
let mut app = App::new(music_hoard_init(vec![]), mb_api(), events());
assert!(app.is_running());
app = app.unwrap_browse().show_info_overlay();
@ -270,6 +310,11 @@ mod tests {
assert!(matches!(state, AppState::Info(_)));
app = state;
app = app.no_op();
let state = app.state();
assert!(matches!(state, AppState::Info(_)));
app = state;
let public = app.get();
assert!(matches!(public.state, AppState::Info(_)));
@ -279,7 +324,7 @@ mod tests {
#[test]
fn state_reload() {
let mut app = App::new(music_hoard_init(vec![]), mb_api());
let mut app = App::new(music_hoard_init(vec![]), mb_api(), events());
assert!(app.is_running());
app = app.unwrap_browse().show_reload_menu();
@ -288,6 +333,11 @@ mod tests {
assert!(matches!(state, AppState::Reload(_)));
app = state;
app = app.no_op();
let state = app.state();
assert!(matches!(state, AppState::Reload(_)));
app = state;
let public = app.get();
assert!(matches!(public.state, AppState::Reload(_)));
@ -297,7 +347,7 @@ mod tests {
#[test]
fn state_search() {
let mut app = App::new(music_hoard_init(vec![]), mb_api());
let mut app = App::new(music_hoard_init(vec![]), mb_api(), events());
assert!(app.is_running());
app = app.unwrap_browse().begin_search();
@ -306,6 +356,11 @@ mod tests {
assert!(matches!(state, AppState::Search(_)));
app = state;
app = app.no_op();
let state = app.state();
assert!(matches!(state, AppState::Search(_)));
app = state;
let public = app.get();
assert!(matches!(public.state, AppState::Search("")));
@ -314,13 +369,45 @@ mod tests {
}
#[test]
fn state_matches() {
let mut app = App::new(music_hoard_init(vec![]), mb_api());
fn state_fetch() {
let mut app = App::new(music_hoard_init(vec![]), mb_api(), events());
assert!(app.is_running());
let (_, rx) = mpsc::channel();
app = AppMachine::app_matches(app.unwrap_browse().inner, rx);
let inner = app.unwrap_browse().inner;
let state = AppFetch::new(rx);
app = AppMachine { inner, state }.into();
let state = app.state();
assert!(matches!(state, AppState::Fetch(_)));
app = state;
app = app.no_op();
let state = app.state();
assert!(matches!(state, AppState::Fetch(_)));
app = state;
let public = app.get();
assert!(matches!(public.state, AppState::Fetch(_)));
let app = app.force_quit();
assert!(!app.is_running());
}
#[test]
fn state_matches() {
let mut app = App::new(music_hoard_init(vec![]), mb_api(), events());
assert!(app.is_running());
let (_, rx) = mpsc::channel();
let fetch = AppFetch::new(rx);
app = AppMachine::matches(app.unwrap_browse().inner, AppMatches::new(None, fetch)).into();
let state = app.state();
assert!(matches!(state, AppState::Matches(_)));
app = state;
app = app.no_op();
let state = app.state();
assert!(matches!(state, AppState::Matches(_)));
app = state;
@ -334,7 +421,7 @@ mod tests {
#[test]
fn state_error() {
let mut app = App::new(music_hoard_init(vec![]), mb_api());
let mut app = App::new(music_hoard_init(vec![]), mb_api(), events());
assert!(app.is_running());
app = AppMachine::error(app.unwrap_browse().inner, "get rekt").into();
@ -343,6 +430,11 @@ mod tests {
assert!(matches!(state, AppState::Error(_)));
app = state;
app = app.no_op();
let state = app.state();
assert!(matches!(state, AppState::Error(_)));
app = state;
let public = app.get();
assert!(matches!(public.state, AppState::Error("get rekt")));
@ -352,7 +444,7 @@ mod tests {
#[test]
fn state_critical() {
let mut app = App::new(music_hoard_init(vec![]), mb_api());
let mut app = App::new(music_hoard_init(vec![]), mb_api(), events());
assert!(app.is_running());
app = AppMachine::critical(app.unwrap_browse().inner, "get rekt").into();
@ -361,6 +453,11 @@ mod tests {
assert!(matches!(state, AppState::Critical(_)));
app = state;
app = app.no_op();
let state = app.state();
assert!(matches!(state, AppState::Critical(_)));
app = state;
let public = app.get();
assert!(matches!(public.state, AppState::Critical("get rekt")));
@ -378,7 +475,7 @@ mod tests {
.return_once(|| Err(musichoard::Error::LibraryError(String::from("get rekt"))));
music_hoard.expect_get_collection().return_const(vec![]);
let app = App::new(music_hoard, mb_api());
let app = App::new(music_hoard, mb_api(), events());
assert!(app.is_running());
app.unwrap_critical();
}

11
src/tui/app/machine/reload.rs
View File

@ -53,10 +53,6 @@ impl IAppInteractReload for AppMachine<AppReload> {
fn hide_reload_menu(self) -> Self::APP {
AppMachine::browse(self.inner).into()
}
fn no_op(self) -> Self::APP {
self.into()
}
}
trait IAppInteractReloadPrivate {
@ -131,11 +127,4 @@ mod tests {
let app = reload.reload_database();
app.unwrap_error();
}
#[test]
fn no_op() {
let reload = AppMachine::reload(inner(music_hoard(vec![])));
let app = reload.no_op();
app.unwrap_reload();
}
}

11
src/tui/app/machine/search.rs
View File

@ -98,10 +98,6 @@ impl IAppInteractSearch for AppMachine<AppSearch> {
self.inner.selection.select_by_list(self.state.orig);
AppMachine::browse(self.inner).into()
}
fn no_op(self) -> Self::APP {
self.into()
}
}
trait IAppInteractSearchPrivate {
@ -544,13 +540,6 @@ mod tests {
let browse = search.cancel_search().unwrap_browse();
assert_eq!(browse.inner.selection.selected(), None);
}
#[test]
fn no_op() {
let search = AppMachine::search(inner(music_hoard(vec![])), orig(None));
let app = search.no_op();
app.unwrap_search();
}
}
#[cfg(nightly)]

56
src/tui/app/mod.rs
View File

@ -8,24 +8,26 @@ use musichoard::collection::{album::AlbumMeta, artist::ArtistMeta, Collection};
use crate::tui::lib::interface::musicbrainz::Match;
pub enum AppState<BS, IS, RS, SS, MS, ES, CS> {
pub enum AppState<BS, IS, RS, SS, FS, MS, ES, CS> {
Browse(BS),
Info(IS),
Reload(RS),
Search(SS),
Fetch(FS),
Matches(MS),
Error(ES),
Critical(CS),
}
pub trait IAppInteract {
type BS: IAppInteractBrowse<APP = Self>;
type IS: IAppInteractInfo<APP = Self>;
type RS: IAppInteractReload<APP = Self>;
type SS: IAppInteractSearch<APP = Self>;
type MS: IAppInteractMatches<APP = Self>;
type ES: IAppInteractError<APP = Self>;
type CS: IAppInteractCritical<APP = Self>;
type BS: IAppBase<APP = Self> + IAppInteractBrowse<APP = Self>;
type IS: IAppBase<APP = Self> + IAppInteractInfo<APP = Self>;
type RS: IAppBase<APP = Self> + IAppInteractReload<APP = Self>;
type SS: IAppBase<APP = Self> + IAppInteractSearch<APP = Self>;
type FS: IAppBase<APP = Self> + IAppInteractFetch<APP = Self> + IAppEventFetch<APP = Self>;
type MS: IAppBase<APP = Self> + IAppInteractMatches<APP = Self>;
type ES: IAppBase<APP = Self> + IAppInteractError<APP = Self>;
type CS: IAppBase<APP = Self>;
fn is_running(&self) -> bool;
fn force_quit(self) -> Self;
@ -33,7 +35,13 @@ pub trait IAppInteract {
#[allow(clippy::type_complexity)]
fn state(
self,
) -> AppState<Self::BS, Self::IS, Self::RS, Self::SS, Self::MS, Self::ES, Self::CS>;
) -> AppState<Self::BS, Self::IS, Self::RS, Self::SS, Self::FS, Self::MS, Self::ES, Self::CS>;
}
pub trait IAppBase {
type APP: IAppInteract;
fn no_op(self) -> Self::APP;
}
pub trait IAppInteractBrowse {
@ -53,16 +61,12 @@ pub trait IAppInteractBrowse {
fn begin_search(self) -> Self::APP;
fn fetch_musicbrainz(self) -> Self::APP;
fn no_op(self) -> Self::APP;
}
pub trait IAppInteractInfo {
type APP: IAppInteract;
fn hide_info_overlay(self) -> Self::APP;
fn no_op(self) -> Self::APP;
}
pub trait IAppInteractReload {
@ -71,8 +75,6 @@ pub trait IAppInteractReload {
fn reload_library(self) -> Self::APP;
fn reload_database(self) -> Self::APP;
fn hide_reload_menu(self) -> Self::APP;
fn no_op(self) -> Self::APP;
}
pub trait IAppInteractSearch {
@ -83,8 +85,18 @@ pub trait IAppInteractSearch {
fn step_back(self) -> Self::APP;
fn finish_search(self) -> Self::APP;
fn cancel_search(self) -> Self::APP;
}
fn no_op(self) -> Self::APP;
pub trait IAppInteractFetch {
type APP: IAppInteract;
fn abort(self) -> Self::APP;
}
pub trait IAppEventFetch {
type APP: IAppInteract;
fn fetch_result_ready(self) -> Self::APP;
}
pub trait IAppInteractMatches {
@ -95,8 +107,6 @@ pub trait IAppInteractMatches {
fn select(self) -> Self::APP;
fn abort(self) -> Self::APP;
fn no_op(self) -> Self::APP;
}
pub trait IAppInteractError {
@ -105,12 +115,6 @@ pub trait IAppInteractError {
fn dismiss_error(self) -> Self::APP;
}
pub trait IAppInteractCritical {
type APP: IAppInteract;
fn no_op(self) -> Self::APP;
}
// It would be preferable to have a getter for each field separately. However, the selection field
// needs to be mutably accessible requiring a mutable borrow of the entire struct if behind a trait.
// This in turn complicates simultaneous field access since only a single mutable borrow is allowed.
@ -177,9 +181,9 @@ pub struct AppPublicMatches<'app> {
}
pub type AppPublicState<'app> =
AppState<(), (), (), &'app str, AppPublicMatches<'app>, &'app str, &'app str>;
AppState<(), (), (), &'app str, (), AppPublicMatches<'app>, &'app str, &'app str>;
impl<BS, IS, RS, SS, MS, ES, CS> AppState<BS, IS, RS, SS, MS, ES, CS> {
impl<BS, IS, RS, SS, FS, MS, ES, CS> AppState<BS, IS, RS, SS, FS, MS, ES, CS> {
pub fn is_search(&self) -> bool {
matches!(self, AppState::Search(_))
}

34
src/tui/event.rs
View File

@ -33,9 +33,16 @@ impl From<mpsc::RecvError> for EventError {
}
}
#[derive(Clone, Copy, Debug)]
impl From<mpsc::TryRecvError> for EventError {
fn from(_: mpsc::TryRecvError) -> EventError {
EventError::Recv
}
}
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
pub enum Event {
Key(KeyEvent),
FetchResultReady,
}
pub struct EventChannel {
@ -43,6 +50,7 @@ pub struct EventChannel {
receiver: mpsc::Receiver<Event>,
}
#[derive(Clone)]
pub struct EventSender {
sender: mpsc::Sender<Event>,
}
@ -80,6 +88,11 @@ impl EventReceiver {
pub fn recv(&self) -> Result<Event, EventError> {
Ok(self.receiver.recv()?)
}
#[cfg(test)]
pub fn try_recv(&self) -> Result<Event, EventError> {
Ok(self.receiver.try_recv()?)
}
}
#[cfg(test)]
@ -121,6 +134,25 @@ mod tests {
assert!(result.is_err());
}
#[test]
fn event_receiver_try() {
let channel = EventChannel::new();
let sender = channel.sender();
let receiver = channel.receiver();
let event = Event::FetchResultReady;
let result = receiver.try_recv();
assert!(result.is_err());
sender.send(event).unwrap();
let result = receiver.try_recv();
assert!(result.is_ok());
drop(sender);
let result = receiver.try_recv();
assert!(result.is_err());
}
#[test]
fn errors() {
let send_err = EventError::Send(Event::Key(KeyEvent {

42
src/tui/handler.rs
View File

@ -5,12 +5,14 @@ use mockall::automock;
use crate::tui::{
app::{
AppState, Delta, IAppInteract, IAppInteractBrowse, IAppInteractCritical, IAppInteractError,
AppState, Delta, IAppInteract, IAppInteractBrowse, IAppInteractError, IAppInteractFetch,
IAppInteractInfo, IAppInteractMatches, IAppInteractReload, IAppInteractSearch,
},
event::{Event, EventError, EventReceiver},
};
use super::app::{IAppBase, IAppEventFetch};
#[cfg_attr(test, automock)]
pub trait IEventHandler<APP: IAppInteract> {
fn handle_next_event(&self, app: APP) -> Result<APP, EventError>;
@ -22,9 +24,12 @@ trait IEventHandlerPrivate<APP: IAppInteract> {
fn handle_info_key_event(app: <APP as IAppInteract>::IS, key_event: KeyEvent) -> APP;
fn handle_reload_key_event(app: <APP as IAppInteract>::RS, key_event: KeyEvent) -> APP;
fn handle_search_key_event(app: <APP as IAppInteract>::SS, key_event: KeyEvent) -> APP;
fn handle_fetch_key_event(app: <APP as IAppInteract>::FS, key_event: KeyEvent) -> APP;
fn handle_matches_key_event(app: <APP as IAppInteract>::MS, key_event: KeyEvent) -> APP;
fn handle_error_key_event(app: <APP as IAppInteract>::ES, key_event: KeyEvent) -> APP;
fn handle_critical_key_event(app: <APP as IAppInteract>::CS, key_event: KeyEvent) -> APP;
fn handle_fetch_result_ready_event(app: APP) -> APP;
}
pub struct EventHandler {
@ -39,11 +44,11 @@ impl EventHandler {
}
impl<APP: IAppInteract> IEventHandler<APP> for EventHandler {
fn handle_next_event(&self, mut app: APP) -> Result<APP, EventError> {
match self.events.recv()? {
Event::Key(key_event) => app = Self::handle_key_event(app, key_event),
};
Ok(app)
fn handle_next_event(&self, app: APP) -> Result<APP, EventError> {
Ok(match self.events.recv()? {
Event::Key(key_event) => Self::handle_key_event(app, key_event),
Event::FetchResultReady => Self::handle_fetch_result_ready_event(app),
})
}
}
@ -70,6 +75,9 @@ impl<APP: IAppInteract> IEventHandlerPrivate<APP> for EventHandler {
AppState::Search(search) => {
<Self as IEventHandlerPrivate<APP>>::handle_search_key_event(search, key_event)
}
AppState::Fetch(fetch) => {
<Self as IEventHandlerPrivate<APP>>::handle_fetch_key_event(fetch, key_event)
}
AppState::Matches(matches) => {
<Self as IEventHandlerPrivate<APP>>::handle_matches_key_event(matches, key_event)
}
@ -82,6 +90,19 @@ impl<APP: IAppInteract> IEventHandlerPrivate<APP> for EventHandler {
}
}
fn handle_fetch_result_ready_event(app: APP) -> APP {
match app.state() {
AppState::Browse(browse) => browse.no_op(),
AppState::Info(info) => info.no_op(),
AppState::Reload(reload) => reload.no_op(),
AppState::Search(search) => search.no_op(),
AppState::Fetch(fetch) => fetch.fetch_result_ready(),
AppState::Matches(matches) => matches.no_op(),
AppState::Error(error) => error.no_op(),
AppState::Critical(critical) => critical.no_op(),
}
}
fn handle_browse_key_event(app: <APP as IAppInteract>::BS, key_event: KeyEvent) -> APP {
match key_event.code {
// Exit application on `ESC` or `q`.
@ -161,6 +182,15 @@ impl<APP: IAppInteract> IEventHandlerPrivate<APP> for EventHandler {
}
}
fn handle_fetch_key_event(app: <APP as IAppInteract>::FS, key_event: KeyEvent) -> APP {
match key_event.code {
// Abort.
KeyCode::Esc | KeyCode::Char('q') | KeyCode::Char('Q') => app.abort(),
// Othey keys.
_ => app.no_op(),
}
}
fn handle_matches_key_event(app: <APP as IAppInteract>::MS, key_event: KeyEvent) -> APP {
match key_event.code {
// Abort.

7
src/tui/mod.rs
View File

@ -174,6 +174,7 @@ mod testmod;
mod tests {
use std::{io, thread};
use event::EventSender;
use lib::interface::musicbrainz::MockIMusicBrainz;
use ratatui::{backend::TestBackend, Terminal};
@ -202,8 +203,12 @@ mod tests {
music_hoard
}
fn events() -> EventSender {
EventChannel::new().sender()
}
fn app(collection: Collection) -> App {
App::new(music_hoard(collection), MockIMusicBrainz::new())
App::new(music_hoard(collection), MockIMusicBrainz::new(), events())
}
fn listener() -> MockIEventListener {

9
src/tui/ui/fetch.rs Normal file
View File

@ -0,0 +1,9 @@
use ratatui::widgets::Paragraph;
pub struct FetchOverlay;
impl FetchOverlay {
pub fn paragraph<'a>() -> Paragraph<'a> {
Paragraph::new(" -- fetching --")
}
}

15
src/tui/ui/minibuffer.rs
View File

@ -27,7 +27,7 @@ impl Minibuffer<'_> {
pub fn new(state: &AppPublicState) -> Self {
let columns = 3;
let mut mb = match state {
AppState::Browse(_) => Minibuffer {
AppState::Browse(()) => Minibuffer {
paragraphs: vec![
Paragraph::new("m: show info overlay"),
Paragraph::new("g: show reload menu"),
@ -36,11 +36,11 @@ impl Minibuffer<'_> {
],
columns,
},
AppState::Info(_) => Minibuffer {
AppState::Info(()) => Minibuffer {
paragraphs: vec![Paragraph::new("m: hide info overlay")],
columns,
},
AppState::Reload(_) => Minibuffer {
AppState::Reload(()) => Minibuffer {
paragraphs: vec![
Paragraph::new("g: hide reload menu"),
Paragraph::new("d: reload database"),
@ -51,12 +51,15 @@ impl Minibuffer<'_> {
AppState::Search(ref s) => Minibuffer {
paragraphs: vec![
Paragraph::new(format!("I-search: {s}")),
Paragraph::new("ctrl+s: search next".to_string()).alignment(Alignment::Center),
Paragraph::new("ctrl+g: cancel search".to_string())
.alignment(Alignment::Center),
Paragraph::new("ctrl+s: search next").alignment(Alignment::Center),
Paragraph::new("ctrl+g: cancel search").alignment(Alignment::Center),
],
columns,
},
AppState::Fetch(()) => Minibuffer {
paragraphs: vec![Paragraph::new("fetching..."), Paragraph::new("q: abort")],
columns: 2,
},
AppState::Matches(public) => Minibuffer {
paragraphs: vec![
Paragraph::new(UiDisplay::display_matching_info(public.matches)),

21
src/tui/ui/mod.rs
View File

@ -1,6 +1,7 @@
mod browse;
mod display;
mod error;
mod fetch;
mod info;
mod matches;
mod minibuffer;
@ -9,6 +10,7 @@ mod reload;
mod style;
mod widgets;
use fetch::FetchOverlay;
use ratatui::{layout::Rect, widgets::Paragraph, Frame};
use musichoard::collection::{album::Album, Collection};
@ -125,12 +127,16 @@ impl Ui {
.with_width(OverlaySize::Value(39))
.with_height(OverlaySize::Value(4))
.build(frame.size());
let reload_text = ReloadOverlay::paragraph();
UiWidget::render_overlay_widget("Reload", reload_text, area, false, frame);
}
fn render_fetch_overlay(frame: &mut Frame) {
let area = OverlayBuilder::default().build(frame.size());
let fetch_text = FetchOverlay::paragraph();
UiWidget::render_overlay_widget("Fetching", fetch_text, area, false, frame)
}
fn render_matches_overlay(
matches: Option<&AppMatchesInfo>,
state: &mut WidgetState,
@ -145,9 +151,7 @@ impl Ui {
let area = OverlayBuilder::default()
.with_height(OverlaySize::Value(4))
.build(frame.size());
let error_text = ErrorOverlay::paragraph(msg.as_ref());
UiWidget::render_overlay_widget(title.as_ref(), error_text, area, true, frame);
}
}
@ -162,11 +166,12 @@ impl IUi for Ui {
Self::render_browse_frame(collection, selection, &state, frame);
match state {
AppState::Info(_) => Self::render_info_overlay(collection, selection, frame),
AppState::Info(()) => Self::render_info_overlay(collection, selection, frame),
AppState::Reload(()) => Self::render_reload_overlay(frame),
AppState::Fetch(()) => Self::render_fetch_overlay(frame),
AppState::Matches(public) => {
Self::render_matches_overlay(public.matches, public.state, frame)
}
AppState::Reload(_) => Self::render_reload_overlay(frame),
AppState::Error(msg) => Self::render_error_overlay("Error", msg, frame),
AppState::Critical(msg) => Self::render_error_overlay("Critical Error", msg, frame),
_ => {}
@ -203,6 +208,7 @@ mod tests {
AppState::Info(()) => AppState::Info(()),
AppState::Reload(()) => AppState::Reload(()),
AppState::Search(s) => AppState::Search(s),
AppState::Fetch(()) => AppState::Fetch(()),
AppState::Matches(ref mut m) => AppState::Matches(AppPublicMatches {
matches: m.matches,
state: m.state,
@ -254,6 +260,9 @@ mod tests {
app.state = AppState::Search("");
terminal.draw(|frame| Ui::render(&mut app, frame)).unwrap();
app.state = AppState::Fetch(());
terminal.draw(|frame| Ui::render(&mut app, frame)).unwrap();
app.state = AppState::Error("get rekt scrub");
terminal.draw(|frame| Ui::render(&mut app, frame)).unwrap();