src/tui/app/machine/browse.rs

@@ -1,3 +1,11 @@
+use std::{thread, time};
+
+use musichoard::{
+    collection::musicbrainz::IMusicBrainzRef,
+    external::musicbrainz::api::{client::MusicBrainzApiClient, MusicBrainzApi},
+    interface::musicbrainz::IMusicBrainz,
+};
+
 use crate::tui::{
     app::{
         machine::{App, AppInner, AppMachine},
@@ -81,6 +89,48 @@ impl<MH: IMusicHoard> IAppInteractBrowse for AppMachine<MH, AppBrowse> {
         AppMachine::search(self.inner, orig).into()
     }
 
+    fn fetch_musicbrainz(self) -> Self::APP {
+        const USER_AGENT: &str = concat!(
+            "MusicHoard/",
+            env!("CARGO_PKG_VERSION"),
+            " ( musichoard@thenineworlds.net )"
+        );
+
+        let client = MusicBrainzApiClient::new(USER_AGENT).expect("failed to create API client");
+        let mut api = MusicBrainzApi::new(client);
+
+        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 arid = match artist.musicbrainz {
+            Some(ref mbid) => mbid.mbid(),
+            None => {
+                return AppMachine::error(self.inner, "cannot fetch: missing artist MBID").into()
+            }
+        };
+
+        if artist.albums.is_empty() {
+            return AppMachine::error(self.inner, "cannot fetch: this artist has no albums").into();
+        }
+
+        let mut artist_album_matches = vec![];
+        for album in artist.albums.iter() {
+            match api.search_release_group(arid, album) {
+                Ok(matches) => artist_album_matches.push(matches),
+                Err(err) => return AppMachine::error(self.inner, err.to_string()).into(),
+            }
+
+            thread::sleep(time::Duration::from_secs(1));
+        }
+
+        AppMachine::matches(self.inner, artist_album_matches).into()
+    }
+
     fn no_op(self) -> Self::APP {
         self.into()
     }

src/tui/app/machine/info.rs

@@ -1,13 +1,7 @@
-use musichoard::{
-    collection::{album::Album, artist::Artist, musicbrainz::IMusicBrainzRef, Collection},
-    external::musicbrainz::api::{client::MusicBrainzApiClient, MusicBrainzApi},
-    interface::musicbrainz::IMusicBrainz,
-};
-
 use crate::tui::{
     app::{
         machine::{App, AppInner, AppMachine},
-        AppPublic, AppState, Category, IAppInteractInfo,
+        AppPublic, AppState, IAppInteractInfo,
     },
     lib::IMusicHoard,
 };
@@ -45,48 +39,6 @@ impl<MH: IMusicHoard> IAppInteractInfo for AppMachine<MH, AppInfo> {
         AppMachine::browse(self.inner).into()
     }
 
-    fn fetch_musicbrainz(self) -> Self::APP {
-        const USER_AGENT: &str = concat!(
-            "MusicHoard/",
-            env!("CARGO_PKG_VERSION"),
-            " ( musichoard@thenineworlds.net )"
-        );
-
-        let client = MusicBrainzApiClient::new(USER_AGENT).expect("failed to create API client");
-        let mut api = MusicBrainzApi::new(client);
-
-        if self.inner.selection.category() == Category::Artist {
-            return AppMachine::error(self.inner, "artist fetch not yet supported").into();
-        }
-
-        let coll: &Collection = self.inner.music_hoard.get_collection();
-        let artist: &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 arid = match artist.musicbrainz {
-            Some(ref mbid) => mbid.mbid(),
-            None => {
-                return AppMachine::error(self.inner, "cannot fetch: missing artist MBID").into()
-            }
-        };
-
-        let album: &Album = match self.inner.selection.state_album(coll) {
-            Some(album_state) => &artist.albums[album_state.index],
-            None => {
-                return AppMachine::error(self.inner, "cannot fetch: no album selected").into()
-            }
-        };
-
-        match api.search_release_group(arid, album) {
-            Ok(matches) => AppMachine::matches(self.inner, matches).into(),
-            Err(err) => AppMachine::error(self.inner, err.to_string()).into(),
-        }
-    }
-
     fn no_op(self) -> Self::APP {
         self.into()
     }

src/tui/app/machine/matches.rs

@@ -11,19 +11,27 @@ use crate::tui::{
 };
 
 pub struct AppMatches {
-    matches: Vec<Match<Album>>,
+    matches: Vec<Vec<Match<Album>>>,
+    index: usize,
     state: WidgetState,
 }
 
 impl<MH: IMusicHoard> AppMachine<MH, AppMatches> {
-    pub fn matches(inner: AppInner<MH>, matches: Vec<Match<Album>>) -> Self {
+    pub fn matches(inner: AppInner<MH>, matches: Vec<Vec<Match<Album>>>) -> Self {
+        assert!(!matches.is_empty());
+
         let mut state = WidgetState::default();
-        if !matches.is_empty() {
+        if !matches[0].is_empty() {
             state.list.select(Some(0));
         }
+
         AppMachine {
             inner,
-            state: AppMatches { matches, state },
+            state: AppMatches {
+                matches,
+                index: 0,
+                state,
+            },
         }
     }
 }
@@ -39,7 +47,7 @@ impl<'a, MH: IMusicHoard> From<&'a mut AppMachine<MH, AppMatches>> for AppPublic
         AppPublic {
             inner: (&mut machine.inner).into(),
             state: AppState::Matches(AppPublicMatches {
-                matches: &machine.state.matches,
+                matches: &machine.state.matches[machine.state.index],
                 state: &mut machine.state.state,
             }),
         }
@@ -61,15 +69,28 @@ impl<MH: IMusicHoard> IAppInteractMatches for AppMachine<MH, AppMatches> {
     fn next_match(mut self) -> Self::APP {
         if let Some(index) = self.state.state.list.selected() {
             let result = index.saturating_add(1);
-            let to = cmp::min(result, self.state.matches.len() - 1);
+            let to = cmp::min(result, self.state.matches[self.state.index].len() - 1);
             self.state.state.list.select(Some(to));
         }
 
         self.into()
     }
 
+    fn select(mut self) -> Self::APP {
+        self.state.index = self.state.index.saturating_add(1);
+        if self.state.index < self.state.matches.len() {
+            self.state.state = WidgetState::default();
+            if !self.state.matches[self.state.index].is_empty() {
+                self.state.state.list.select(Some(0));
+            }
+            self.into()
+        } else {
+            AppMachine::browse(self.inner).into()
+        }
+    }
+
     fn abort(self) -> Self::APP {
-        AppMachine::info(self.inner).into()
+        AppMachine::browse(self.inner).into()
     }
 
     fn no_op(self) -> Self::APP {

src/tui/app/machine/mod.rs

@@ -22,9 +22,9 @@ use search::AppSearch;
 pub type App<MH> = AppState<
     AppMachine<MH, AppBrowse>,
     AppMachine<MH, AppInfo>,
-    AppMachine<MH, AppMatches>,
     AppMachine<MH, AppReload>,
     AppMachine<MH, AppSearch>,
+    AppMachine<MH, AppMatches>,
     AppMachine<MH, AppError>,
     AppMachine<MH, AppCritical>,
 >;
@@ -83,9 +83,9 @@ impl<MH: IMusicHoard> App<MH> {
 impl<MH: IMusicHoard> IAppInteract for App<MH> {
     type BS = AppMachine<MH, AppBrowse>;
     type IS = AppMachine<MH, AppInfo>;
-    type MS = AppMachine<MH, AppMatches>;
     type RS = AppMachine<MH, AppReload>;
     type SS = AppMachine<MH, AppSearch>;
+    type MS = AppMachine<MH, AppMatches>;
     type ES = AppMachine<MH, AppError>;
     type CS = AppMachine<MH, AppCritical>;
 
@@ -100,7 +100,7 @@ impl<MH: IMusicHoard> IAppInteract for App<MH> {
 
     fn state(
         self,
-    ) -> AppState<Self::BS, Self::IS, Self::MS, Self::RS, Self::SS, Self::ES, Self::CS> {
+    ) -> AppState<Self::BS, Self::IS, Self::RS, Self::SS, Self::MS, Self::ES, Self::CS> {
         self
     }
 }
@@ -150,7 +150,7 @@ mod tests {
 
     use super::*;
 
-    impl<BS, IS, MS, RS, SS, ES, CS> AppState<BS, IS, MS, RS, SS, ES, CS> {
+    impl<BS, IS, RS, SS, MS, ES, CS> AppState<BS, IS, RS, SS, MS, ES, CS> {
         pub fn unwrap_browse(self) -> BS {
             match self {
                 AppState::Browse(browse) => browse,

src/tui/app/mod.rs

@@ -9,12 +9,12 @@ use musichoard::{
     interface::musicbrainz::Match,
 };
 
-pub enum AppState<BS, IS, MS, RS, SS, ES, CS> {
+pub enum AppState<BS, IS, RS, SS, MS, ES, CS> {
     Browse(BS),
     Info(IS),
-    Matches(MS),
     Reload(RS),
     Search(SS),
+    Matches(MS),
     Error(ES),
     Critical(CS),
 }
@@ -22,9 +22,9 @@ pub enum AppState<BS, IS, MS, RS, SS, ES, CS> {
 pub trait IAppInteract {
     type BS: IAppInteractBrowse<APP = Self>;
     type IS: IAppInteractInfo<APP = Self>;
-    type MS: IAppInteractMatches<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>;
 
@@ -34,7 +34,7 @@ pub trait IAppInteract {
     #[allow(clippy::type_complexity)]
     fn state(
         self,
-    ) -> AppState<Self::BS, Self::IS, Self::MS, Self::RS, Self::SS, Self::ES, Self::CS>;
+    ) -> AppState<Self::BS, Self::IS, Self::RS, Self::SS, Self::MS, Self::ES, Self::CS>;
 }
 
 pub trait IAppInteractBrowse {
@@ -53,6 +53,8 @@ pub trait IAppInteractBrowse {
 
     fn begin_search(self) -> Self::APP;
 
+    fn fetch_musicbrainz(self) -> Self::APP;
+
     fn no_op(self) -> Self::APP;
 }
 
@@ -60,18 +62,6 @@ pub trait IAppInteractInfo {
     type APP: IAppInteract;
 
     fn hide_info_overlay(self) -> Self::APP;
-    fn fetch_musicbrainz(self) -> Self::APP;
-
-    fn no_op(self) -> Self::APP;
-}
-
-pub trait IAppInteractMatches {
-    type APP: IAppInteract;
-
-    fn prev_match(self) -> Self::APP;
-    fn next_match(self) -> Self::APP;
-
-    fn abort(self) -> Self::APP;
 
     fn no_op(self) -> Self::APP;
 }
@@ -98,6 +88,18 @@ pub trait IAppInteractSearch {
     fn no_op(self) -> Self::APP;
 }
 
+pub trait IAppInteractMatches {
+    type APP: IAppInteract;
+
+    fn prev_match(self) -> Self::APP;
+    fn next_match(self) -> Self::APP;
+    fn select(self) -> Self::APP;
+
+    fn abort(self) -> Self::APP;
+
+    fn no_op(self) -> Self::APP;
+}
+
 pub trait IAppInteractError {
     type APP: IAppInteract;
 
@@ -134,9 +136,9 @@ pub struct AppPublicMatches<'app> {
 }
 
 pub type AppPublicState<'app> =
-    AppState<(), (), AppPublicMatches<'app>, (), &'app str, &'app str, &'app str>;
+    AppState<(), (), (), &'app str, AppPublicMatches<'app>, &'app str, &'app str>;
 
-impl<BS, IS, MS, RS, SS, ES, CS> AppState<BS, IS, MS, RS, SS, ES, CS> {
+impl<BS, IS, RS, SS, MS, ES, CS> AppState<BS, IS, RS, SS, MS, ES, CS> {
     pub fn is_search(&self) -> bool {
         matches!(self, AppState::Search(_))
     }

src/tui/handler.rs

@@ -20,9 +20,9 @@ trait IEventHandlerPrivate<APP: IAppInteract> {
     fn handle_key_event(app: APP, key_event: KeyEvent) -> APP;
     fn handle_browse_key_event(app: <APP as IAppInteract>::BS, key_event: KeyEvent) -> APP;
     fn handle_info_key_event(app: <APP as IAppInteract>::IS, key_event: KeyEvent) -> APP;
-    fn handle_matches_key_event(app: <APP as IAppInteract>::MS, 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_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;
 }
@@ -64,15 +64,15 @@ impl<APP: IAppInteract> IEventHandlerPrivate<APP> for EventHandler {
             AppState::Info(info) => {
                 <Self as IEventHandlerPrivate<APP>>::handle_info_key_event(info, key_event)
             }
-            AppState::Matches(matches) => {
-                <Self as IEventHandlerPrivate<APP>>::handle_matches_key_event(matches, key_event)
-            }
             AppState::Reload(reload) => {
                 <Self as IEventHandlerPrivate<APP>>::handle_reload_key_event(reload, key_event)
             }
             AppState::Search(search) => {
                 <Self as IEventHandlerPrivate<APP>>::handle_search_key_event(search, key_event)
             }
+            AppState::Matches(matches) => {
+                <Self as IEventHandlerPrivate<APP>>::handle_matches_key_event(matches, key_event)
+            }
             AppState::Error(error) => {
                 <Self as IEventHandlerPrivate<APP>>::handle_error_key_event(error, key_event)
             }
@@ -106,6 +106,7 @@ impl<APP: IAppInteract> IEventHandlerPrivate<APP> for EventHandler {
                     app.no_op()
                 }
             }
+            KeyCode::Char('f') | KeyCode::Char('F') => app.fetch_musicbrainz(),
             // Othey keys.
             _ => app.no_op(),
         }
@@ -119,19 +120,6 @@ impl<APP: IAppInteract> IEventHandlerPrivate<APP> for EventHandler {
             | KeyCode::Char('Q')
             | KeyCode::Char('m')
             | KeyCode::Char('M') => app.hide_info_overlay(),
-            KeyCode::Char('f') | KeyCode::Char('F') => app.fetch_musicbrainz(),
-            // Othey keys.
-            _ => app.no_op(),
-        }
-    }
-
-    fn handle_matches_key_event(app: <APP as IAppInteract>::MS, key_event: KeyEvent) -> APP {
-        match key_event.code {
-            // Abort.
-            KeyCode::Esc | KeyCode::Char('q') | KeyCode::Char('Q') => app.abort(),
-            // Select.
-            KeyCode::Up => app.prev_match(),
-            KeyCode::Down => app.next_match(),
             // Othey keys.
             _ => app.no_op(),
         }
@@ -173,6 +161,19 @@ impl<APP: IAppInteract> IEventHandlerPrivate<APP> for EventHandler {
         }
     }
 
+    fn handle_matches_key_event(app: <APP as IAppInteract>::MS, key_event: KeyEvent) -> APP {
+        match key_event.code {
+            // Abort.
+            KeyCode::Esc | KeyCode::Char('q') | KeyCode::Char('Q') => app.abort(),
+            // Select.
+            KeyCode::Up => app.prev_match(),
+            KeyCode::Down => app.next_match(),
+            KeyCode::Enter => app.select(),
+            // Othey keys.
+            _ => app.no_op(),
+        }
+    }
+
     fn handle_error_key_event(app: <APP as IAppInteract>::ES, _key_event: KeyEvent) -> APP {
         // Any key dismisses the error.
         app.dismiss_error()

src/tui/ui.rs

@@ -504,18 +504,12 @@ impl Minibuffer<'_> {
                     Paragraph::new("m: show info overlay"),
                     Paragraph::new("g: show reload menu"),
                     Paragraph::new("ctrl+s: search artist"),
-                ],
-                columns,
-            },
-            AppState::Info(_) => Minibuffer {
-                paragraphs: vec![
-                    Paragraph::new("m: hide info overlay"),
                     Paragraph::new("f: fetch musicbrainz"),
                 ],
                 columns,
             },
-            AppState::Matches(_) => Minibuffer {
+            AppState::Info(_) => Minibuffer {
-                paragraphs: vec![],
+                paragraphs: vec![Paragraph::new("m: hide info overlay")],
                 columns,
             },
             AppState::Reload(_) => Minibuffer {
@@ -535,6 +529,13 @@ impl Minibuffer<'_> {
                 ],
                 columns,
             },
+            AppState::Matches(_) => Minibuffer {
+                paragraphs: vec![
+                    Paragraph::new("enter: apply highlighted"),
+                    Paragraph::new("q: abort"),
+                ],
+                columns,
+            },
             AppState::Error(_) => Minibuffer {
                 paragraphs: vec![Paragraph::new(
                     "Press any key to dismiss the error message...",
@@ -908,12 +909,12 @@ mod tests {
                 state: match self.state {
                     AppState::Browse(()) => AppState::Browse(()),
                     AppState::Info(()) => AppState::Info(()),
+                    AppState::Reload(()) => AppState::Reload(()),
+                    AppState::Search(s) => AppState::Search(s),
                     AppState::Matches(ref mut m) => AppState::Matches(AppPublicMatches {
                         matches: &m.matches,
                         state: &mut m.state,
                     }),
-                    AppState::Reload(()) => AppState::Reload(()),
-                    AppState::Search(s) => AppState::Search(s),
                     AppState::Error(s) => AppState::Error(s),
                     AppState::Critical(s) => AppState::Critical(s),
                 },