Make MBID part of the album identifier to disambiguate MB clashes (#240)

Part 2 of #231

Reviewed-on: #240

src/core/collection/album.rs

@@ -26,9 +26,8 @@ pub struct AlbumMeta {
 }
 
 /// Album non-identifier metadata.
-#[derive(Clone, Debug, PartialEq, Eq)]
+#[derive(Clone, Debug, Default, PartialEq, Eq)]
 pub struct AlbumInfo {
-    pub musicbrainz: MbRefOption<MbAlbumRef>,
     pub primary_type: Option<AlbumPrimaryType>,
     pub secondary_types: Vec<AlbumSecondaryType>,
 }
@@ -38,15 +37,7 @@ pub struct AlbumInfo {
 pub struct AlbumId {
     pub title: String,
     pub lib_id: AlbumLibId,
-}
-
-impl AlbumId {
-    pub fn compatible(&self, other: &AlbumId) -> bool {
-        let titles_compatible = self.title == other.title;
-        let lib_id_compatible =
-            self.lib_id.is_none() || other.lib_id.is_none() || (self.lib_id == other.lib_id);
-        titles_compatible && lib_id_compatible
-    }
+    pub db_id: AlbumDbId,
 }
 
 /// Unique library identifier.
@@ -63,6 +54,9 @@ impl AlbumLibId {
     }
 }
 
+/// Unique database identifier. Use MBID for this purpose.
+pub type AlbumDbId = MbRefOption<MbAlbumRef>;
+
 // There are crates for handling dates, but we don't need much complexity beyond year-month-day.
 /// The album's release date.
 #[derive(Clone, Debug, Default, PartialEq, Eq, PartialOrd, Ord)]
@@ -221,6 +215,14 @@ impl AlbumMeta {
         (&self.date, &self.seq, &self.id)
     }
 
+    pub fn set_db_id(&mut self, db_id: AlbumDbId) {
+        self.id.set_db_id(db_id);
+    }
+
+    pub fn clear_db_id(&mut self) {
+        self.id.clear_db_id();
+    }
+
     pub fn set_seq(&mut self, seq: AlbumSeq) {
         self.seq = seq;
     }
@@ -230,24 +232,12 @@ impl AlbumMeta {
     }
 }
 
-impl Default for AlbumInfo {
-    fn default() -> Self {
-        AlbumInfo {
-            musicbrainz: MbRefOption::None,
-            primary_type: None,
-            secondary_types: Vec::new(),
-        }
-    }
-}
-
 impl AlbumInfo {
     pub fn new(
-        musicbrainz: MbRefOption<MbAlbumRef>,
         primary_type: Option<AlbumPrimaryType>,
         secondary_types: Vec<AlbumSecondaryType>,
     ) -> Self {
         AlbumInfo {
-            musicbrainz,
             primary_type,
             secondary_types,
         }
@@ -269,6 +259,7 @@ impl Ord for AlbumMeta {
 impl Merge for AlbumMeta {
     fn merge_in_place(&mut self, other: Self) {
         assert!(self.id.compatible(&other.id));
+        self.id.db_id = self.id.db_id.take().or(other.id.db_id);
         self.seq = std::cmp::max(self.seq, other.seq);
         self.info.merge_in_place(other.info);
     }
@@ -276,7 +267,6 @@ impl Merge for AlbumMeta {
 
 impl Merge for AlbumInfo {
     fn merge_in_place(&mut self, other: Self) {
-        self.musicbrainz = self.musicbrainz.take().or(other.musicbrainz);
         self.primary_type = self.primary_type.take().or(other.primary_type);
         if self.secondary_types.is_empty() {
             self.secondary_types = other.secondary_types;
@@ -301,8 +291,31 @@ impl AlbumId {
         AlbumId {
             title: name.into(),
             lib_id: AlbumLibId::None,
+            db_id: AlbumDbId::None,
         }
     }
+
+    pub fn with_db_id(mut self, db_id: AlbumDbId) -> Self {
+        self.db_id = db_id;
+        self
+    }
+
+    pub fn set_db_id(&mut self, db_id: AlbumDbId) {
+        self.db_id = db_id;
+    }
+
+    pub fn clear_db_id(&mut self) {
+        self.db_id = AlbumDbId::None;
+    }
+
+    pub fn compatible(&self, other: &AlbumId) -> bool {
+        let titles_compatible = self.title == other.title;
+        let lib_id_compatible =
+            self.lib_id.is_none() || other.lib_id.is_none() || (self.lib_id == other.lib_id);
+        let db_id_compatible =
+            self.db_id.is_none() || other.db_id.is_none() || (self.db_id == other.db_id);
+        titles_compatible && lib_id_compatible && db_id_compatible
+    }
 }
 
 impl Display for AlbumId {

src/core/collection/musicbrainz.rs

@@ -7,7 +7,7 @@ use crate::core::collection::Error;
 
 const MB_DOMAIN: &str = "musicbrainz.org";
 
-#[derive(Clone, Debug, PartialEq, Eq)]
+#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
 pub struct Mbid(Uuid);
 
 impl Mbid {
@@ -38,7 +38,7 @@ try_from_impl_for_mbid!(&str);
 try_from_impl_for_mbid!(&String);
 try_from_impl_for_mbid!(String);
 
-#[derive(Clone, Debug, PartialEq, Eq)]
+#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
 pub enum MbRefOption<T> {
     Some(T),
     CannotHaveMbid,
@@ -70,7 +70,7 @@ impl<T> MbRefOption<T> {
     }
 }
 
-#[derive(Clone, Debug, PartialEq, Eq)]
+#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
 struct MusicBrainzRef {
     mbid: Mbid,
     url: Url,
@@ -82,10 +82,10 @@ pub trait IMusicBrainzRef {
     fn entity() -> &'static str;
 }
 
-#[derive(Clone, Debug, PartialEq, Eq)]
+#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
 pub struct MbArtistRef(MusicBrainzRef);
 
-#[derive(Clone, Debug, PartialEq, Eq)]
+#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
 pub struct MbAlbumRef(MusicBrainzRef);
 
 macro_rules! impl_imusicbrainzref {

src/core/musichoard/database.rs

@@ -2,7 +2,7 @@ use std::mem;
 
 use crate::{
     collection::{
-        album::{AlbumInfo, AlbumMeta},
+        album::{AlbumDbId, AlbumInfo, AlbumMeta},
         artist::ArtistInfo,
         merge::Merge,
     },
@@ -72,6 +72,17 @@ pub trait IMusicHoardDatabase {
         album_id: AlbumIdRef,
     ) -> Result<(), Error>;
 
+    fn set_album_db_id<ArtistIdRef: AsRef<ArtistId>, AlbumIdRef: AsRef<AlbumId>>(
+        &mut self,
+        artist_id: ArtistIdRef,
+        album_id: AlbumIdRef,
+        db_id: AlbumDbId,
+    ) -> Result<(), Error>;
+    fn clear_album_db_id<ArtistIdRef: AsRef<ArtistId>, AlbumIdRef: AsRef<AlbumId>>(
+        &mut self,
+        artist_id: ArtistIdRef,
+        album_id: AlbumIdRef,
+    ) -> Result<(), Error>;
     fn set_album_seq<ArtistIdRef: AsRef<ArtistId>, AlbumIdRef: AsRef<AlbumId>>(
         &mut self,
         artist_id: ArtistIdRef,
@@ -242,6 +253,33 @@ impl<Database: IDatabase, Library> IMusicHoardDatabase for MusicHoard<Database,
         })
     }
 
+    fn set_album_db_id<ArtistIdRef: AsRef<ArtistId>, AlbumIdRef: AsRef<AlbumId>>(
+        &mut self,
+        artist_id: ArtistIdRef,
+        album_id: AlbumIdRef,
+        db_id: AlbumDbId,
+    ) -> Result<(), Error> {
+        self.update_album_and(
+            artist_id.as_ref(),
+            album_id.as_ref(),
+            |album| album.meta.set_db_id(db_id),
+            |artist| artist.albums.sort_unstable(),
+        )
+    }
+
+    fn clear_album_db_id<ArtistIdRef: AsRef<ArtistId>, AlbumIdRef: AsRef<AlbumId>>(
+        &mut self,
+        artist_id: ArtistIdRef,
+        album_id: AlbumIdRef,
+    ) -> Result<(), Error> {
+        self.update_album_and(
+            artist_id.as_ref(),
+            album_id.as_ref(),
+            |album| album.meta.clear_db_id(),
+            |artist| artist.albums.sort_unstable(),
+        )
+    }
+
     fn set_album_seq<ArtistIdRef: AsRef<ArtistId>, AlbumIdRef: AsRef<AlbumId>>(
         &mut self,
         artist_id: ArtistIdRef,
@@ -708,6 +746,61 @@ mod tests {
         assert_eq!(music_hoard.collection, collection);
     }
 
+    #[test]
+    fn set_clear_album_db_id() {
+        let mut database = MockIDatabase::new();
+
+        let artist_id = ArtistId::new("an artist");
+        let mut album_id = AlbumId::new("an album");
+        let album_id_2 = AlbumId::new("another album");
+
+        let mut database_result = vec![Artist::new(artist_id.clone())];
+        database_result[0].albums.push(Album::new(album_id.clone()));
+
+        database
+            .expect_load()
+            .times(1)
+            .return_once(|| Ok(database_result));
+        database.expect_save().times(2).returning(|_| Ok(()));
+
+        let mut music_hoard = MusicHoard::database(database).unwrap();
+        let album = &music_hoard.collection[0].albums[0];
+        assert_eq!(album.meta.id.db_id, AlbumDbId::None);
+
+        // Seting db_id on an album not belonging to the artist is an error.
+        assert!(music_hoard
+            .set_album_db_id(&artist_id, &album_id_2, AlbumDbId::CannotHaveMbid)
+            .is_err());
+        let album = &music_hoard.collection[0].albums[0];
+        assert_eq!(album.meta.id.db_id, AlbumDbId::None);
+
+        // Set db_id.
+        assert!(music_hoard
+            .set_album_db_id(&artist_id, &album_id, AlbumDbId::CannotHaveMbid)
+            .is_ok());
+        let album = &music_hoard.collection[0].albums[0];
+        assert_eq!(album.meta.id.db_id, AlbumDbId::CannotHaveMbid);
+
+        // Clearing db_id on an album that does not exist is an error.
+        assert!(music_hoard
+            .clear_album_db_id(&artist_id, &album_id_2)
+            .is_err());
+
+        // Clearing db_id from album without the db_id set is an error. Effectively the album does
+        // not exist.
+        assert!(music_hoard
+            .clear_album_db_id(&artist_id, &album_id)
+            .is_err());
+        let album = &music_hoard.collection[0].albums[0];
+        assert_eq!(album.meta.id.db_id, AlbumDbId::CannotHaveMbid);
+
+        // To clear the db_id we need the album_id to have the db_id to identify the correct album.
+        album_id.set_db_id(AlbumDbId::CannotHaveMbid);
+        assert!(music_hoard.clear_album_db_id(&artist_id, &album_id).is_ok());
+        let album = &music_hoard.collection[0].albums[0];
+        assert_eq!(album.meta.id.db_id, AlbumDbId::None);
+    }
+
     #[test]
     fn set_clear_album_seq() {
         let mut database = MockIDatabase::new();
@@ -767,12 +860,10 @@ mod tests {
         let mut music_hoard = MusicHoard::database(database).unwrap();
 
         let meta = &music_hoard.collection[0].albums[0].meta;
-        assert_eq!(meta.info.musicbrainz, MbRefOption::None);
         assert_eq!(meta.info.primary_type, None);
         assert_eq!(meta.info.secondary_types, Vec::new());
 
         let info = AlbumInfo::new(
-            MbRefOption::CannotHaveMbid,
             Some(AlbumPrimaryType::Album),
             vec![AlbumSecondaryType::Live],
         );

src/core/musichoard/library.rs

@@ -1,19 +1,22 @@
 use std::collections::HashMap;
 
-use crate::core::{
-    collection::{
-        album::{Album, AlbumDate, AlbumId},
-        artist::{Artist, ArtistId},
-        track::{Track, TrackId, TrackNum, TrackQuality},
-        Collection,
-    },
-    interface::{
-        database::IDatabase,
-        library::{ILibrary, Item, Query},
-    },
-    musichoard::{
-        base::IMusicHoardBasePrivate, database::IMusicHoardDatabasePrivate, Error, MusicHoard,
-        NoDatabase,
+use crate::{
+    collection::album::AlbumDbId,
+    core::{
+        collection::{
+            album::{Album, AlbumDate, AlbumId},
+            artist::{Artist, ArtistId},
+            track::{Track, TrackId, TrackNum, TrackQuality},
+            Collection,
+        },
+        interface::{
+            database::IDatabase,
+            library::{ILibrary, Item, Query},
+        },
+        musichoard::{
+            base::IMusicHoardBasePrivate, database::IMusicHoardDatabasePrivate, Error, MusicHoard,
+            NoDatabase,
+        },
     },
 };
 
@@ -57,6 +60,7 @@ impl<Database, Library: ILibrary> MusicHoard<Database, Library> {
             let album_id = AlbumId {
                 title: item.album_title,
                 lib_id: item.album_lib_id,
+                db_id: AlbumDbId::None,
             };
 
             let album_date = AlbumDate {

src/core/testmod.rs

@@ -2,7 +2,9 @@ use once_cell::sync::Lazy;
 use std::collections::HashMap;
 
 use crate::core::collection::{
-    album::{Album, AlbumId, AlbumInfo, AlbumLibId, AlbumMeta, AlbumPrimaryType, AlbumSeq},
+    album::{
+        Album, AlbumDbId, AlbumId, AlbumInfo, AlbumLibId, AlbumMeta, AlbumPrimaryType, AlbumSeq,
+    },
     artist::{Artist, ArtistId, ArtistInfo, ArtistMeta},
     musicbrainz::{MbAlbumRef, MbArtistRef, MbRefOption},
     track::{Track, TrackFormat, TrackId, TrackNum, TrackQuality},

src/external/database/serde/deserialize.rs

@@ -142,11 +142,11 @@ impl From<DeserializeAlbum> for Album {
                 id: AlbumId {
                     title: album.title,
                     lib_id: album.lib_id.into(),
+                    db_id: album.musicbrainz.into(),
                 },
                 date: AlbumDate::default(),
                 seq: AlbumSeq(album.seq),
                 info: AlbumInfo {
-                    musicbrainz: album.musicbrainz.into(),
                     primary_type: album.primary_type.map(Into::into),
                     secondary_types: album.secondary_types.into_iter().map(Into::into).collect(),
                 },

src/external/database/serde/serialize.rs

@@ -105,7 +105,7 @@ impl<'a> From<&'a Album> for SerializeAlbum<'a> {
             title: &album.meta.id.title,
             lib_id: album.meta.id.lib_id.into(),
             seq: album.meta.seq.0,
-            musicbrainz: (&album.meta.info.musicbrainz).into(),
+            musicbrainz: (&album.meta.id.db_id).into(),
             primary_type: album.meta.info.primary_type.map(Into::into),
             secondary_types: album
                 .meta

src/testmod/full.rs

@@ -29,13 +29,13 @@ macro_rules! full_collection {
                             id: AlbumId {
                                 title: "album_title a.a".to_string(),
                                 lib_id: AlbumLibId::Value(1),
+                                db_id: AlbumDbId::Some(MbAlbumRef::from_url_str(
+                                    "https://musicbrainz.org/release-group/00000000-0000-0000-0000-000000000000"
+                                ).unwrap()),
                             },
                             date: 1998.into(),
                             seq: AlbumSeq(1),
                             info: AlbumInfo {
-                                musicbrainz: MbRefOption::Some(MbAlbumRef::from_url_str(
-                                    "https://musicbrainz.org/release-group/00000000-0000-0000-0000-000000000000"
-                                ).unwrap()),
                                 primary_type: Some(AlbumPrimaryType::Album),
                                 secondary_types: vec![],
                             },
@@ -95,11 +95,11 @@ macro_rules! full_collection {
                             id: AlbumId {
                                 title: "album_title a.b".to_string(),
                                 lib_id: AlbumLibId::Value(2),
+                                db_id: AlbumDbId::None,
                             },
                             date: (2015, 4).into(),
                             seq: AlbumSeq(1),
                             info: AlbumInfo {
-                                musicbrainz: MbRefOption::None,
                                 primary_type: Some(AlbumPrimaryType::Album),
                                 secondary_types: vec![],
                             },
@@ -163,11 +163,11 @@ macro_rules! full_collection {
                             id: AlbumId {
                                 title: "album_title b.a".to_string(),
                                 lib_id: AlbumLibId::Value(3),
+                                db_id: AlbumDbId::None,
                             },
                             date: (2003, 6, 6).into(),
                             seq: AlbumSeq(1),
                             info: AlbumInfo {
-                                musicbrainz: MbRefOption::None,
                                 primary_type: Some(AlbumPrimaryType::Album),
                                 secondary_types: vec![],
                             },
@@ -205,13 +205,13 @@ macro_rules! full_collection {
                             id: AlbumId {
                                 title: "album_title b.b".to_string(),
                                 lib_id: AlbumLibId::Value(4),
+                                db_id: AlbumDbId::Some(MbAlbumRef::from_url_str(
+                                    "https://musicbrainz.org/release-group/11111111-1111-1111-1111-111111111111"
+                                ).unwrap()),
                             },
                             date: 2008.into(),
                             seq: AlbumSeq(3),
                             info: AlbumInfo {
-                                musicbrainz: MbRefOption::Some(MbAlbumRef::from_url_str(
-                                    "https://musicbrainz.org/release-group/11111111-1111-1111-1111-111111111111"
-                                ).unwrap()),
                                 primary_type: Some(AlbumPrimaryType::Album),
                                 secondary_types: vec![],
                             },
@@ -249,13 +249,13 @@ macro_rules! full_collection {
                             id: AlbumId {
                                 title: "album_title b.c".to_string(),
                                 lib_id: AlbumLibId::Value(5),
+                                db_id: AlbumDbId::Some(MbAlbumRef::from_url_str(
+                                    "https://musicbrainz.org/release-group/11111111-1111-1111-1111-111111111112"
+                                ).unwrap()),
                             },
                             date: 2009.into(),
                             seq: AlbumSeq(2),
                             info: AlbumInfo {
-                                musicbrainz: MbRefOption::Some(MbAlbumRef::from_url_str(
-                                    "https://musicbrainz.org/release-group/11111111-1111-1111-1111-111111111112"
-                                ).unwrap()),
                                 primary_type: Some(AlbumPrimaryType::Album),
                                 secondary_types: vec![],
                             },
@@ -293,11 +293,11 @@ macro_rules! full_collection {
                             id: AlbumId {
                                 title: "album_title b.d".to_string(),
                                 lib_id: AlbumLibId::Value(6),
+                                db_id: AlbumDbId::None,
                             },
                             date: 2015.into(),
                             seq: AlbumSeq(4),
                             info: AlbumInfo {
-                                musicbrainz: MbRefOption::None,
                                 primary_type: Some(AlbumPrimaryType::Album),
                                 secondary_types: vec![],
                             },
@@ -349,11 +349,11 @@ macro_rules! full_collection {
                             id: AlbumId {
                                 title: "album_title c.a".to_string(),
                                 lib_id: AlbumLibId::Value(7),
+                                db_id: AlbumDbId::None,
                             },
                             date: 1985.into(),
                             seq: AlbumSeq(0),
                             info: AlbumInfo {
-                                musicbrainz: MbRefOption::None,
                                 primary_type: Some(AlbumPrimaryType::Album),
                                 secondary_types: vec![],
                             },
@@ -391,11 +391,11 @@ macro_rules! full_collection {
                             id: AlbumId {
                                 title: "album_title c.b".to_string(),
                                 lib_id: AlbumLibId::Value(8),
+                                db_id: AlbumDbId::None,
                             },
                             date: 2018.into(),
                             seq: AlbumSeq(0),
                             info: AlbumInfo {
-                                musicbrainz: MbRefOption::None,
                                 primary_type: Some(AlbumPrimaryType::Album),
                                 secondary_types: vec![],
                             },
@@ -447,11 +447,11 @@ macro_rules! full_collection {
                             id: AlbumId {
                                 title: "album_title d.a".to_string(),
                                 lib_id: AlbumLibId::Value(9),
+                                db_id: AlbumDbId::None,
                             },
                             date: 1995.into(),
                             seq: AlbumSeq(0),
                             info: AlbumInfo {
-                                musicbrainz: MbRefOption::None,
                                 primary_type: Some(AlbumPrimaryType::Album),
                                 secondary_types: vec![],
                             },
@@ -489,11 +489,11 @@ macro_rules! full_collection {
                             id: AlbumId {
                                 title: "album_title d.b".to_string(),
                                 lib_id: AlbumLibId::Value(10),
+                                db_id: AlbumDbId::None,
                             },
                             date: 2028.into(),
                             seq: AlbumSeq(0),
                             info: AlbumInfo {
-                                musicbrainz: MbRefOption::None,
                                 primary_type: Some(AlbumPrimaryType::Album),
                                 secondary_types: vec![],
                             },

src/testmod/library.rs

@@ -19,6 +19,7 @@ macro_rules! library_collection {
                             id: AlbumId {
                                 title: "album_title a.a".to_string(),
                                 lib_id: AlbumLibId::Value(1),
+                                db_id: AlbumDbId::None,
                             },
                             date: 1998.into(),
                             seq: AlbumSeq(0),
@@ -79,6 +80,7 @@ macro_rules! library_collection {
                             id: AlbumId {
                                 title: "album_title a.b".to_string(),
                                 lib_id: AlbumLibId::Value(2),
+                                db_id: AlbumDbId::None,
                             },
                             date: (2015, 4).into(),
                             seq: AlbumSeq(0),
@@ -128,6 +130,7 @@ macro_rules! library_collection {
                             id: AlbumId {
                                 title: "album_title b.a".to_string(),
                                 lib_id: AlbumLibId::Value(3),
+                                db_id: AlbumDbId::None,
                             },
                             date: (2003, 6, 6).into(),
                             seq: AlbumSeq(0),
@@ -166,6 +169,7 @@ macro_rules! library_collection {
                             id: AlbumId {
                                 title: "album_title b.b".to_string(),
                                 lib_id: AlbumLibId::Value(4),
+                                db_id: AlbumDbId::None,
                             },
                             date: 2008.into(),
                             seq: AlbumSeq(0),
@@ -204,6 +208,7 @@ macro_rules! library_collection {
                             id: AlbumId {
                                 title: "album_title b.c".to_string(),
                                 lib_id: AlbumLibId::Value(5),
+                                db_id: AlbumDbId::None,
                             },
                             date: 2009.into(),
                             seq: AlbumSeq(0),
@@ -242,6 +247,7 @@ macro_rules! library_collection {
                             id: AlbumId {
                                 title: "album_title b.d".to_string(),
                                 lib_id: AlbumLibId::Value(6),
+                                db_id: AlbumDbId::None,
                             },
                             date: 2015.into(),
                             seq: AlbumSeq(0),
@@ -294,6 +300,7 @@ macro_rules! library_collection {
                             id: AlbumId {
                                 title: "album_title c.a".to_string(),
                                 lib_id: AlbumLibId::Value(7),
+                                db_id: AlbumDbId::None,
                             },
                             date: 1985.into(),
                             seq: AlbumSeq(0),
@@ -332,6 +339,7 @@ macro_rules! library_collection {
                             id: AlbumId {
                                 title: "album_title c.b".to_string(),
                                 lib_id: AlbumLibId::Value(8),
+                                db_id: AlbumDbId::None,
                             },
                             date: 2018.into(),
                             seq: AlbumSeq(0),
@@ -384,6 +392,7 @@ macro_rules! library_collection {
                             id: AlbumId {
                                 title: "album_title d.a".to_string(),
                                 lib_id: AlbumLibId::Value(9),
+                                db_id: AlbumDbId::None,
                             },
                             date: 1995.into(),
                             seq: AlbumSeq(0),
@@ -422,6 +431,7 @@ macro_rules! library_collection {
                             id: AlbumId {
                                 title: "album_title d.b".to_string(),
                                 lib_id: AlbumLibId::Value(10),
+                                db_id: AlbumDbId::None,
                             },
                             date: 2028.into(),
                             seq: AlbumSeq(0),

src/tui/app/machine/fetch_state.rs

@@ -213,7 +213,7 @@ impl AppMachine<FetchState> {
     }
 
     fn album_match(old: &AlbumMeta, new: &AlbumMeta) -> bool {
-        old.info.musicbrainz.is_some() && (old.info.musicbrainz == new.info.musicbrainz)
+        old.id.db_id.is_some() && (old.id.db_id == new.id.db_id)
     }
 
     pub fn app_lookup_artist(
@@ -287,7 +287,7 @@ impl AppMachine<FetchState> {
         let arid = arid.mbid();
         albums
             .iter()
-            .filter(|album| album.meta.info.musicbrainz.is_none())
+            .filter(|album| album.meta.id.db_id.is_none())
             .map(|album| {
                 MbParams::search_release_group(artist.clone(), arid.clone(), album.meta.clone())
             })

src/tui/app/machine/match_state.rs

@@ -1,7 +1,7 @@
 use std::cmp;
 
 use musichoard::collection::{
-    album::{AlbumInfo, AlbumMeta},
+    album::{AlbumDbId, AlbumInfo, AlbumMeta},
     artist::{ArtistInfo, ArtistMeta},
     musicbrainz::{MbRefOption, Mbid},
 };
@@ -12,6 +12,11 @@ use crate::tui::app::{
     MatchOption, MatchStatePublic, WidgetState,
 };
 
+struct AlbumInfoTuple {
+    db_id: AlbumDbId,
+    info: AlbumInfo,
+}
+
 trait GetInfoMeta {
     type InfoType;
 }
@@ -19,7 +24,7 @@ impl GetInfoMeta for ArtistMeta {
     type InfoType = ArtistInfo;
 }
 impl GetInfoMeta for AlbumMeta {
-    type InfoType = AlbumInfo;
+    type InfoType = AlbumInfoTuple;
 }
 
 trait GetInfo {
@@ -47,16 +52,20 @@ impl GetInfo for MatchOption<ArtistMeta> {
 }
 
 impl GetInfo for MatchOption<AlbumMeta> {
-    type InfoType = AlbumInfo;
+    type InfoType = AlbumInfoTuple;
 
     fn get_info(&self) -> InfoOption<Self::InfoType> {
+        let db_id;
         let mut info = AlbumInfo::default();
         match self {
-            MatchOption::Some(option) => info = option.entity.info.clone(),
-            MatchOption::CannotHaveMbid => info.musicbrainz = MbRefOption::CannotHaveMbid,
+            MatchOption::Some(option) => {
+                db_id = option.entity.id.db_id.clone();
+                info = option.entity.info.clone();
+            }
+            MatchOption::CannotHaveMbid => db_id = AlbumDbId::CannotHaveMbid,
             MatchOption::ManualInputMbid => return InfoOption::NeedInput,
         }
-        InfoOption::Info(info)
+        InfoOption::Info(AlbumInfoTuple { db_id, info })
     }
 }
 
@@ -232,9 +241,11 @@ impl IAppInteractMatch for AppMachine<MatchState> {
                 InfoOption::NeedInput => return self.get_input(),
             },
             EntityMatches::Album(ref mut matches) => match matches.list.extract_info(index) {
-                InfoOption::Info(info) => {
-                    mh.merge_album_info(&matches.artist, &matches.matching, info)
-                }
+                InfoOption::Info(tuple) => mh
+                    .merge_album_info(&matches.artist, &matches.matching, tuple.info)
+                    .and_then(|()| {
+                        mh.set_album_db_id(&matches.artist, &matches.matching, tuple.db_id)
+                    }),
                 InfoOption::NeedInput => return self.get_input(),
             },
         };
@@ -255,7 +266,10 @@ impl IAppInteractMatch for AppMachine<MatchState> {
 mod tests {
     use std::{collections::VecDeque, sync::mpsc};
 
-    use mockall::predicate::{self, eq};
+    use mockall::{
+        predicate::{self, eq},
+        Sequence,
+    };
     use musichoard::collection::{
         album::{AlbumDate, AlbumId, AlbumInfo, AlbumMeta, AlbumPrimaryType, AlbumSecondaryType},
         artist::{ArtistId, ArtistMeta},
@@ -315,14 +329,13 @@ mod tests {
     }
 
     fn album_id() -> AlbumId {
-        AlbumId::new("Album")
+        AlbumId::new("Album").with_db_id(MbRefOption::Some(mbid().into()))
     }
 
     fn album_meta(id: AlbumId) -> AlbumMeta {
         AlbumMeta::new(id)
             .with_date(AlbumDate::new(Some(1990), Some(5), None))
             .with_info(AlbumInfo::new(
-                MbRefOption::Some(mbid().into()),
                 Some(AlbumPrimaryType::Album),
                 vec![AlbumSecondaryType::Live, AlbumSecondaryType::Compilation],
             ))
@@ -330,7 +343,7 @@ mod tests {
 
     fn album_match() -> EntityMatches {
         let artist_id = ArtistId::new("Artist");
-        let album_id = album_id();
+        let mut album_id = album_id();
         let album_meta = album_meta(album_id.clone());
 
         let album_1 = album_meta.clone();
@@ -341,14 +354,17 @@ mod tests {
         album_2.info.secondary_types.pop();
         let album_match_2 = Entity::with_score(album_2, 100);
 
+        album_id.clear_db_id();
         let list = vec![album_match_1.clone(), album_match_2.clone()];
         EntityMatches::album_search(artist_id, album_id, list)
     }
 
     fn album_lookup() -> EntityMatches {
         let artist_id = ArtistId::new("Artist");
-        let album_id = album_id();
+        let mut album_id = album_id();
         let album_meta = album_meta(album_id.clone());
+
+        album_id.clear_db_id();
         let lookup = Entity::new(album_meta.clone());
         EntityMatches::album_lookup(artist_id, album_id, lookup)
     }
@@ -393,14 +409,21 @@ mod tests {
         match matches_info {
             EntityMatches::Album(_) => {
                 let album_id = AlbumId::new("Album");
-                let info = AlbumInfo {
-                    musicbrainz: MbRefOption::CannotHaveMbid,
-                    ..Default::default()
-                };
+                let db_id = MbRefOption::CannotHaveMbid;
+                let info = AlbumInfo::default();
+
+                let mut seq = Sequence::new();
                 music_hoard
                     .expect_merge_album_info()
                     .with(eq(artist_id.clone()), eq(album_id.clone()), eq(info))
                     .times(1)
+                    .in_sequence(&mut seq)
+                    .return_once(|_, _, _| Ok(()));
+                music_hoard
+                    .expect_set_album_db_id()
+                    .with(eq(artist_id.clone()), eq(album_id.clone()), eq(db_id))
+                    .times(1)
+                    .in_sequence(&mut seq)
                     .return_once(|_, _, _| Ok(()));
             }
             EntityMatches::Artist(_) => {
@@ -515,11 +538,24 @@ mod tests {
         match matches_info {
             EntityMatches::Artist(_) => panic!(),
             EntityMatches::Album(matches) => {
-                let meta = album_meta(album_id());
+                let mut album_id = album_id();
+                let meta = album_meta(album_id.clone());
+                let db_id = album_id.db_id.clone();
+                album_id.clear_db_id();
+                let artist = matches.artist.clone();
+
+                let mut seq = Sequence::new();
                 music_hoard
                     .expect_merge_album_info()
-                    .with(eq(matches.artist), eq(meta.id), eq(meta.info))
+                    .with(eq(artist.clone()), eq(album_id.clone()), eq(meta.info))
                     .times(1)
+                    .in_sequence(&mut seq)
+                    .return_once(|_, _, _| Ok(()));
+                music_hoard
+                    .expect_set_album_db_id()
+                    .with(eq(artist.clone()), eq(album_id.clone()), eq(db_id))
+                    .times(1)
+                    .in_sequence(&mut seq)
                     .return_once(|_, _, _| Ok(()));
             }
         }

src/tui/lib/external/musicbrainz/api/mod.rs

@@ -4,7 +4,7 @@ use std::collections::HashMap;
 
 use musichoard::{
     collection::{
-        album::{AlbumDate, AlbumInfo, AlbumMeta, AlbumSeq},
+        album::{AlbumDate, AlbumDbId, AlbumId, AlbumInfo, AlbumLibId, AlbumMeta, AlbumSeq},
         artist::{ArtistInfo, ArtistMeta},
         musicbrainz::{MbRefOption, Mbid},
     },
@@ -128,11 +128,14 @@ fn from_mb_artist_meta(meta: MbArtistMeta) -> (ArtistMeta, Option<String>) {
 
 fn from_mb_release_group_meta(meta: MbReleaseGroupMeta) -> AlbumMeta {
     AlbumMeta {
-        id: meta.title.into(),
+        id: AlbumId {
+            title: meta.title,
+            lib_id: AlbumLibId::None,
+            db_id: AlbumDbId::Some(meta.id.into()),
+        },
         date: meta.first_release_date,
         seq: AlbumSeq::default(),
         info: AlbumInfo {
-            musicbrainz: MbRefOption::Some(meta.id.into()),
             primary_type: meta.primary_type,
             secondary_types: meta.secondary_types.unwrap_or_default(),
         },

src/tui/lib/mod.rs

@@ -3,7 +3,7 @@ pub mod interface;
 
 use musichoard::{
     collection::{
-        album::{AlbumId, AlbumInfo, AlbumMeta},
+        album::{AlbumDbId, AlbumId, AlbumInfo, AlbumMeta},
         artist::{ArtistId, ArtistInfo},
         Collection,
     },
@@ -31,6 +31,12 @@ pub trait IMusicHoard {
         id: &ArtistId,
         info: ArtistInfo,
     ) -> Result<(), musichoard::Error>;
+    fn set_album_db_id(
+        &mut self,
+        artist_id: &ArtistId,
+        album_id: &AlbumId,
+        db_id: AlbumDbId,
+    ) -> Result<(), musichoard::Error>;
     fn merge_album_info(
         &mut self,
         artist_id: &ArtistId,
@@ -69,6 +75,15 @@ impl<Database: IDatabase, Library: ILibrary> IMusicHoard for MusicHoard<Database
         <Self as IMusicHoardDatabase>::merge_artist_info(self, id, info)
     }
 
+    fn set_album_db_id(
+        &mut self,
+        artist_id: &ArtistId,
+        album_id: &AlbumId,
+        db_id: AlbumDbId,
+    ) -> Result<(), musichoard::Error> {
+        <Self as IMusicHoardDatabase>::set_album_db_id(self, artist_id, album_id, db_id)
+    }
+
     fn merge_album_info(
         &mut self,
         artist_id: &ArtistId,

src/tui/testmod.rs

@@ -1,7 +1,9 @@
 use std::collections::HashMap;
 
 use musichoard::collection::{
-    album::{Album, AlbumId, AlbumInfo, AlbumLibId, AlbumMeta, AlbumPrimaryType, AlbumSeq},
+    album::{
+        Album, AlbumDbId, AlbumId, AlbumInfo, AlbumLibId, AlbumMeta, AlbumPrimaryType, AlbumSeq,
+    },
     artist::{Artist, ArtistId, ArtistInfo, ArtistMeta},
     musicbrainz::{MbAlbumRef, MbArtistRef, MbRefOption},
     track::{Track, TrackFormat, TrackId, TrackNum, TrackQuality},

src/tui/ui/info_state.rs

@@ -108,7 +108,7 @@ impl<'a> AlbumOverlay<'a> {
                 .map(|a| UiDisplay::display_album_lib_id(&a.meta.id.lib_id))
                 .unwrap_or_default(),
             album
-                .map(|a| UiDisplay::display_mb_ref_option_as_url(&a.meta.info.musicbrainz))
+                .map(|a| UiDisplay::display_mb_ref_option_as_url(&a.meta.id.db_id))
                 .unwrap_or_default(),
         ));
 

src/tui/ui/mod.rs

@@ -201,7 +201,6 @@ mod tests {
     use musichoard::collection::{
         album::{AlbumDate, AlbumId, AlbumInfo, AlbumMeta, AlbumPrimaryType, AlbumSecondaryType},
         artist::{Artist, ArtistId, ArtistMeta},
-        musicbrainz::MbRefOption,
     };
 
     use crate::tui::{
@@ -362,7 +361,6 @@ mod tests {
         AlbumMeta::new(id)
             .with_date(AlbumDate::new(Some(1990), Some(5), None))
             .with_info(AlbumInfo::new(
-                MbRefOption::None,
                 Some(AlbumPrimaryType::Album),
                 vec![AlbumSecondaryType::Live, AlbumSecondaryType::Compilation],
             ))

tests/testlib.rs

@@ -3,8 +3,8 @@ use std::collections::HashMap;
 
 use musichoard::collection::{
     album::{
-        Album, AlbumId, AlbumInfo, AlbumLibId, AlbumMeta, AlbumPrimaryType, AlbumSecondaryType,
-        AlbumSeq,
+        Album, AlbumDbId, AlbumId, AlbumInfo, AlbumLibId, AlbumMeta, AlbumPrimaryType,
+        AlbumSecondaryType, AlbumSeq,
     },
     artist::{Artist, ArtistId, ArtistInfo, ArtistMeta},
     musicbrainz::{MbArtistRef, MbRefOption},
@@ -42,11 +42,11 @@ pub static COLLECTION: Lazy<Vec<Artist>> = Lazy::new(|| -> Collection {
                     id: AlbumId {
                         title: String::from("Slovo"),
                         lib_id: AlbumLibId::Value(7),
+                        db_id: AlbumDbId::None,
                     },
                     date: 2011.into(),
                     seq: AlbumSeq(0),
                     info: AlbumInfo {
-                        musicbrainz: MbRefOption::None,
                         primary_type: Some(AlbumPrimaryType::Album),
                         secondary_types: vec![],
                     },
@@ -235,11 +235,11 @@ pub static COLLECTION: Lazy<Vec<Artist>> = Lazy::new(|| -> Collection {
                         id: AlbumId {
                             title: String::from("Vên [re‐recorded]"),
                             lib_id: AlbumLibId::Value(1),
+                            db_id: AlbumDbId::None,
                         },
                         date: 2004.into(),
                         seq: AlbumSeq(0),
                         info: AlbumInfo {
-                            musicbrainz: MbRefOption::None,
                             primary_type: Some(AlbumPrimaryType::Ep),
                             secondary_types: vec![],
                         },
@@ -318,11 +318,11 @@ pub static COLLECTION: Lazy<Vec<Artist>> = Lazy::new(|| -> Collection {
                         id: AlbumId {
                             title: String::from("Slania"),
                             lib_id: AlbumLibId::Value(2),
+                            db_id: AlbumDbId::None,
                         },
                         date: 2008.into(),
                         seq: AlbumSeq(0),
                         info: AlbumInfo {
-                            musicbrainz: MbRefOption::None,
                             primary_type: Some(AlbumPrimaryType::Album),
                             secondary_types: vec![],
                         },
@@ -489,11 +489,11 @@ pub static COLLECTION: Lazy<Vec<Artist>> = Lazy::new(|| -> Collection {
                     id: AlbumId {
                         title: String::from("…nasze jest królestwo, potęga i chwała na wieki…"),
                         lib_id: AlbumLibId::Value(3),
+                        db_id: AlbumDbId::None,
                     },
                     date: 2001.into(),
                     seq: AlbumSeq(0),
                     info: AlbumInfo {
-                        musicbrainz: MbRefOption::None,
                         primary_type: Some(AlbumPrimaryType::Album),
                         secondary_types: vec![],
                     },
@@ -648,6 +648,7 @@ pub static COLLECTION: Lazy<Vec<Artist>> = Lazy::new(|| -> Collection {
                     id: AlbumId {
                         title: String::from("Paper Plague"),
                         lib_id: AlbumLibId::Singleton,
+                        db_id: AlbumDbId::None,
                     },
                     date: 2011.into(),
                     seq: AlbumSeq(0),
@@ -671,11 +672,11 @@ pub static COLLECTION: Lazy<Vec<Artist>> = Lazy::new(|| -> Collection {
                     id: AlbumId {
                         title: String::from("Unbreakable"),
                         lib_id: AlbumLibId::Value(4),
+                        db_id: AlbumDbId::None,
                     },
                     date: 2011.into(),
                     seq: AlbumSeq(0),
                     info: AlbumInfo {
-                        musicbrainz: MbRefOption::None,
                         primary_type: Some(AlbumPrimaryType::Album),
                         secondary_types: vec![],
                     },
@@ -787,11 +788,11 @@ pub static COLLECTION: Lazy<Vec<Artist>> = Lazy::new(|| -> Collection {
                         id: AlbumId {
                             title: String::from("Ride the Lightning"),
                             lib_id: AlbumLibId::Value(5),
+                            db_id: AlbumDbId::None,
                         },
                         date: 1984.into(),
                         seq: AlbumSeq(0),
                         info: AlbumInfo {
-                            musicbrainz: MbRefOption::None,
                             primary_type: Some(AlbumPrimaryType::Album),
                             secondary_types: vec![],
                         },
@@ -892,11 +893,11 @@ pub static COLLECTION: Lazy<Vec<Artist>> = Lazy::new(|| -> Collection {
                         id: AlbumId {
                             title: String::from("S&M"),
                             lib_id: AlbumLibId::Value(6),
+                            db_id: AlbumDbId::None,
                         },
                         date: 1999.into(),
                         seq: AlbumSeq(0),
                         info: AlbumInfo {
-                            musicbrainz: MbRefOption::None,
                             primary_type: Some(AlbumPrimaryType::Album),
                             secondary_types: vec![AlbumSecondaryType::Live],
                         },