Proper split of APIs

src/external/musicbrainz/mod.rs

@@ -15,10 +15,7 @@ use url::form_urlencoded;
 use crate::{
     collection::album::AlbumDate,
     core::{
-        collection::{
-            album::{Album, AlbumPrimaryType, AlbumSecondaryType},
-            musicbrainz::IMusicBrainzRef,
-        },
+        collection::album::{AlbumPrimaryType, AlbumSecondaryType},
         interface::musicbrainz::Mbid,
     },
     interface::musicbrainz::MbidError,
@@ -81,44 +78,91 @@ impl<Http> MusicBrainzClient<Http> {
 }
 
 impl<Http: IMusicBrainzHttp> MusicBrainzClient<Http> {
+    fn display_album_date(date: &AlbumDate) -> Option<String> {
+        match date.year {
+            Some(year) => match date.month {
+                Some(month) => match date.day {
+                    Some(day) => Some(format!("{year}-{month:02}-{day:02}")),
+                    None => Some(format!("{year}-{month:02}")),
+                },
+                None => Some(format!("{year}")),
+            },
+            None => None,
+        }
+    }
+
     pub fn search_release_group(
         &mut self,
-        arid: &Mbid,
-        album: &Album,
-    ) -> Result<ResponseSearchReleaseGroup, Error> {
-        let title = &album.id.title;
-        let arid = arid.uuid().as_hyphenated().to_string();
-        let mut query = format!("arid:{arid}");
+        request: SearchReleaseGroupRequest,
+    ) -> Result<SearchReleaseGroupResponse, Error> {
+        let mut query: Vec<String> = vec![];
 
-        match album.musicbrainz {
-            Some(ref mbref) => {
-                let rgid = mbref.mbid().uuid().as_hyphenated().to_string();
-                query.push_str(&format!(" AND rgid:{rgid}"));
-            }
-            None => {
-                query.push_str(&format!(" AND releasegroup:\"{title}\""));
-                if let Some(year) = album.date.year {
-                    query.push_str(&format!(" AND firstreleasedate:{year}"));
+        if let Some(arid) = request.arid {
+            query.push(format!("arid:{}", arid.uuid().as_hyphenated().to_string()));
         }
+
+        if let Some(date) = request.first_release_date {
+            if let Some(date_string) = Self::display_album_date(date) {
+                query.push(format!("firstreleasedate:{date_string}"))
             }
         }
 
-        let query: String = form_urlencoded::byte_serialize(query.as_bytes()).collect();
+        if let Some(release_group) = request.release_group {
+            query.push(format!("releasegroup:\"{release_group}\""));
+        }
+
+        if let Some(rgid) = request.rgid {
+            query.push(format!("rgid:{}", rgid.uuid().as_hyphenated().to_string()));
+        }
+
+        let query: String =
+            form_urlencoded::byte_serialize(query.join(" AND ").as_bytes()).collect();
         let url = format!("{MB_BASE_URL}/release-group?query={query}");
 
         Ok(self.http.get(&url)?)
     }
 }
 
+#[derive(Default)]
+pub struct SearchReleaseGroupRequest<'a> {
+    arid: Option<&'a Mbid>,
+    first_release_date: Option<&'a AlbumDate>,
+    release_group: Option<&'a str>,
+    rgid: Option<&'a Mbid>,
+}
+
+impl<'a> SearchReleaseGroupRequest<'a> {
+    pub fn arid(&mut self, arid: &'a Mbid) -> &mut Self {
+        self.arid = Some(arid);
+        self
+    }
+
+    pub fn first_release_date(&mut self, first_release_date: &'a AlbumDate) -> &mut Self {
+        self.first_release_date = Some(first_release_date);
+        self
+    }
+
+    pub fn release_group(&mut self, release_group: &'a str) -> &mut Self {
+        self.release_group = Some(release_group);
+        self
+    }
+
+    pub fn rgid(&mut self, rgid: &'a Mbid) -> &mut Self {
+        self.rgid = Some(rgid);
+        self
+    }
+}
+
+// TODO: Separate deserialize types from internal types like in JSON code.
 #[derive(Deserialize)]
 #[serde(rename_all(deserialize = "kebab-case"))]
-pub struct ResponseSearchReleaseGroup {
-    pub release_groups: Vec<SearchReleaseGroup>,
+pub struct SearchReleaseGroupResponse {
+    pub release_groups: Vec<SearchReleaseGroupResponseUnit>,
 }
 
 #[derive(Deserialize)]
 #[serde(rename_all(deserialize = "kebab-case"))]
-pub struct SearchReleaseGroup {
+pub struct SearchReleaseGroupResponseUnit {
     pub score: u8,
     pub id: Mbid,
     pub title: String,

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

@@ -1,8 +1,11 @@
 //! Module for interacting with the [MusicBrainz API](https://musicbrainz.org/doc/MusicBrainz_API).
 
 use musichoard::{
-    collection::album::Album,
-    external::musicbrainz::{IMusicBrainzHttp, MusicBrainzClient, SearchReleaseGroup},
+    collection::{album::Album, musicbrainz::IMusicBrainzRef},
+    external::musicbrainz::{
+        IMusicBrainzHttp, MusicBrainzClient, SearchReleaseGroupRequest,
+        SearchReleaseGroupResponseUnit,
+    },
     interface::musicbrainz::Mbid,
 };
 
@@ -24,16 +27,25 @@ impl<Http: IMusicBrainzHttp> IMusicBrainz for MusicBrainz<Http> {
         arid: &Mbid,
         album: &Album,
     ) -> Result<Vec<Match<Album>>, Error> {
-        let mb_response = self.client.search_release_group(arid, album)?;
+        let mut request = SearchReleaseGroupRequest::default();
+        request
+            .arid(arid)
+            .release_group(&album.id.title)
+            .first_release_date(&album.date);
+        if let Some(ref mbref) = album.musicbrainz {
+            request.rgid(mbref.mbid());
+        }
+
+        let mb_response = self.client.search_release_group(request)?;
         Ok(mb_response
             .release_groups
             .into_iter()
-            .map(from_search_release_group)
+            .map(from_search_release_group_response_unit)
             .collect())
     }
 }
 
-fn from_search_release_group(entity: SearchReleaseGroup) -> Match<Album> {
+fn from_search_release_group_response_unit(entity: SearchReleaseGroupResponseUnit) -> Match<Album> {
     let mut album = Album::new(
         entity.title,
         entity.first_release_date,