fix: clippy warnings

src/api_model.rs

@@ -1,6 +1,7 @@
-use serde::{Deserialize, Serialize};
+use chrono::{DateTime, Utc};
+use serde::{de::Visitor, Deserialize, Deserializer, Serialize};
 
-use crate::error::{Error, Result};
+use crate::error::{Error, Result as MxmResult};
 
 //#COMMON
 
@@ -23,6 +24,7 @@ pub enum MessageBody<T> {
     EmptyArr(Vec<()>),
     // "body": {}
     EmptyObj {},
+    EmptyStr(String),
 }
 
 #[derive(Debug, Deserialize)]
@@ -32,17 +34,17 @@ pub struct Header {
     #[serde(default)]
     pub hint: String,
     /// Is the requested track instrumental?
-    #[serde(default)]
-    pub instrumental: u8,
+    #[serde(default, deserialize_with = "bool_from_int")]
+    pub instrumental: bool,
 }
 
 impl<T> Resp<T> {
-    pub fn body_or_err(self) -> Result<T> {
+    pub fn body_or_err(self) -> MxmResult<T> {
         match (self.message.body, self.message.header.status_code < 400) {
             (Some(MessageBody::Some(body)), true) => Ok(body),
             (_, true) => Err(Error::NoData),
             (_, false) => {
-                if self.message.header.instrumental > 0 {
+                if self.message.header.instrumental {
                     Err(Error::Instrumental)
                 } else if self.message.header.status_code == 404 {
                     Err(Error::NotFound)
@@ -122,6 +124,145 @@ pub struct ErrorMxm {
     pub description: String,
 }
 
+pub fn bool_from_int<'de, D>(deserializer: D) -> Result<bool, D::Error>
+where
+    D: Deserializer<'de>,
+{
+    struct BoolFromIntVisitor;
+
+    impl<'de> Visitor<'de> for BoolFromIntVisitor {
+        type Value = bool;
+
+        fn expecting(&self, formatter: &mut std::fmt::Formatter) -> std::fmt::Result {
+            formatter.write_str("a number or boolean")
+        }
+
+        fn visit_bool<E>(self, v: bool) -> Result<Self::Value, E>
+        where
+            E: serde::de::Error,
+        {
+            Ok(v)
+        }
+
+        fn visit_u8<E>(self, v: u8) -> Result<Self::Value, E>
+        where
+            E: serde::de::Error,
+        {
+            Ok(v != 0)
+        }
+
+        fn visit_u16<E>(self, v: u16) -> Result<Self::Value, E>
+        where
+            E: serde::de::Error,
+        {
+            Ok(v != 0)
+        }
+
+        fn visit_u32<E>(self, v: u32) -> Result<Self::Value, E>
+        where
+            E: serde::de::Error,
+        {
+            Ok(v != 0)
+        }
+
+        fn visit_u64<E>(self, v: u64) -> Result<Self::Value, E>
+        where
+            E: serde::de::Error,
+        {
+            Ok(v != 0)
+        }
+
+        fn visit_u128<E>(self, v: u128) -> Result<Self::Value, E>
+        where
+            E: serde::de::Error,
+        {
+            Ok(v != 0)
+        }
+
+        fn visit_i8<E>(self, v: i8) -> Result<Self::Value, E>
+        where
+            E: serde::de::Error,
+        {
+            Ok(v != 0)
+        }
+
+        fn visit_i16<E>(self, v: i16) -> Result<Self::Value, E>
+        where
+            E: serde::de::Error,
+        {
+            Ok(v != 0)
+        }
+
+        fn visit_i32<E>(self, v: i32) -> Result<Self::Value, E>
+        where
+            E: serde::de::Error,
+        {
+            Ok(v != 0)
+        }
+
+        fn visit_i64<E>(self, v: i64) -> Result<Self::Value, E>
+        where
+            E: serde::de::Error,
+        {
+            Ok(v != 0)
+        }
+
+        fn visit_i128<E>(self, v: i128) -> Result<Self::Value, E>
+        where
+            E: serde::de::Error,
+        {
+            Ok(v != 0)
+        }
+
+        fn visit_f32<E>(self, v: f32) -> Result<Self::Value, E>
+        where
+            E: serde::de::Error,
+        {
+            Ok(v != 0.0)
+        }
+
+        fn visit_f64<E>(self, v: f64) -> Result<Self::Value, E>
+        where
+            E: serde::de::Error,
+        {
+            Ok(v != 0.0)
+        }
+    }
+
+    deserializer.deserialize_any(BoolFromIntVisitor)
+}
+
+pub fn optional_date<'de, D>(deserializer: D) -> Result<Option<DateTime<Utc>>, D::Error>
+where
+    D: Deserializer<'de>,
+{
+    struct OptionalDateVisitor;
+
+    impl<'de> Visitor<'de> for OptionalDateVisitor {
+        type Value = Option<DateTime<Utc>>;
+
+        fn expecting(
+            &self,
+            formatter: &mut serde::__private::fmt::Formatter,
+        ) -> serde::__private::fmt::Result {
+            formatter.write_str("timestamp or empty string")
+        }
+
+        fn visit_str<E>(self, v: &str) -> Result<Self::Value, E>
+        where
+            E: serde::de::Error,
+        {
+            if v.is_empty() {
+                Ok(None)
+            } else {
+                v.parse().map_err(E::custom).map(Some)
+            }
+        }
+    }
+
+    deserializer.deserialize_str(OptionalDateVisitor)
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;
@@ -184,4 +325,51 @@ mod tests {
             "Error 403 returned by the Musixmatch API. Message: ''"
         );
     }
+
+    #[test]
+    fn deserialize_instrumental() {
+        let json = r#"{"message":{"header":{"status_code":404,"execute_time":0.002,"instrumental":true}}}"#;
+
+        let res = serde_json::from_str::<Resp<SubtitleBody>>(json).unwrap();
+
+        assert_eq!(res.message.header.status_code, 404);
+        assert!(res.message.header.instrumental);
+        assert!(res.message.body.is_none());
+
+        let err = res.body_or_err().unwrap_err();
+        assert!(matches!(err, Error::Instrumental));
+    }
+
+    #[test]
+    fn deserialize_instrumental2() {
+        let json =
+            r#"{"message":{"header":{"status_code":404,"execute_time":0.002,"instrumental":1}}}"#;
+
+        let res = serde_json::from_str::<Resp<SubtitleBody>>(json).unwrap();
+
+        assert_eq!(res.message.header.status_code, 404);
+        assert!(res.message.header.instrumental);
+        assert!(res.message.body.is_none());
+
+        let err = res.body_or_err().unwrap_err();
+        assert!(matches!(err, Error::Instrumental));
+    }
+
+    #[test]
+    fn deserialize_optional_date() {
+        #[derive(Deserialize)]
+        struct S {
+            #[serde(deserialize_with = "optional_date")]
+            date: Option<DateTime<Utc>>,
+        }
+
+        let json_empty_string = r#"{"date": ""}"#;
+        let json_date = r#"{"date": "2022-08-27T23:47:20Z"}"#;
+
+        let res = serde_json::from_str::<S>(json_empty_string).unwrap();
+        assert!(res.date.is_none());
+
+        let res = serde_json::from_str::<S>(json_date).unwrap();
+        assert!(res.date.is_some());
+    }
 }

src/apis/album_api.rs

@@ -0,0 +1,101 @@
+use crate::error::Result;
+use crate::models::album::{Album, AlbumBody, AlbumListBody};
+use crate::models::{AlbumId, ArtistId, SortOrder};
+use crate::Musixmatch;
+
+impl Musixmatch {
+    /// Get the metadata for an album specified by its ID.
+    ///
+    /// # Parameters
+    /// - `id`: [Album ID](crate::models::AlbumId)
+    ///
+    /// # Reference
+    /// <https://developer.musixmatch.com/documentation/api-reference/album-get>
+    pub async fn album(&self, id: AlbumId<'_>) -> Result<Album> {
+        let mut url = self.new_url("album.get");
+        {
+            let mut url_query = url.query_pairs_mut();
+
+            let id_param = id.to_param();
+            url_query.append_pair(id_param.0, &id_param.1);
+            url_query.finish();
+        }
+
+        let album_body = self.execute_get_request::<AlbumBody>(&url).await?;
+        Ok(album_body.album)
+    }
+
+    /// Get the album discography of an artist specified by its ID.
+    ///
+    /// # Parameters
+    /// - `id`: [Artist ID](crate::models::ArtistId)
+    /// - `s_release_date`: Sort the albums by release date. If None, the albums are
+    ///   sorted by popularity
+    /// - `page_size`: Define the page size for paginated results. Range is 1 to 100.
+    /// - `page`: Define the page number for paginated results, starting from 1.
+    ///
+    /// # Reference
+    /// <https://developer.musixmatch.com/documentation/api-reference/artist-albums-get>
+    pub async fn artist_albums(
+        &self,
+        artist_id: ArtistId<'_>,
+        s_release_date: Option<SortOrder>,
+        page_size: u8,
+        page: u32,
+    ) -> Result<Vec<Album>> {
+        let mut url = self.new_url("artist.albums.get");
+        {
+            let mut url_query = url.query_pairs_mut();
+
+            let id_param = artist_id.to_param();
+            url_query.append_pair(id_param.0, &id_param.1);
+            if let Some(s_release_date) = s_release_date {
+                url_query.append_pair("s_release_date", s_release_date.as_str());
+            }
+            url_query.append_pair("page_size", &page_size.to_string());
+            url_query.append_pair("page", &page.to_string());
+            url_query.finish();
+        }
+
+        let album_list_body = self.execute_get_request::<AlbumListBody>(&url).await?;
+        Ok(album_list_body
+            .album_list
+            .into_iter()
+            .map(|a| a.album)
+            .collect())
+    }
+
+    /// This api provides you the list of the top albums of a given country.
+    ///
+    /// # Parameters
+    /// - `country`: A valid country code (default: "US")
+    /// - `page_size`: Define the page size for paginated results. Range is 1 to 100.
+    /// - `page`: Define the page number for paginated results, starting from 1.
+    ///
+    /// # Reference
+    /// None - please update your documentation, Musixmatch!
+    pub async fn chart_albums(
+        &self,
+        country: &str,
+        page_size: u8,
+        page: u32,
+    ) -> Result<Vec<Album>> {
+        let mut url = self.new_url("chart.albums.get");
+        {
+            let mut url_query = url.query_pairs_mut();
+
+            url_query.append_pair("country", country);
+            url_query.append_pair("chart_name", "new_releases");
+            url_query.append_pair("page_size", &page_size.to_string());
+            url_query.append_pair("page", &page.to_string());
+            url_query.finish();
+        }
+
+        let album_list_body = self.execute_get_request::<AlbumListBody>(&url).await?;
+        Ok(album_list_body
+            .album_list
+            .into_iter()
+            .map(|a| a.album)
+            .collect())
+    }
+}

src/apis/artist_api.rs

@@ -0,0 +1,129 @@
+use crate::error::Result;
+use crate::models::artist::{Artist, ArtistBody, ArtistListBody};
+use crate::models::ArtistId;
+use crate::Musixmatch;
+
+impl Musixmatch {
+    /// Get the metadata for an artist specified by its ID.
+    ///
+    /// # Parameters
+    /// - `id`: [Artist ID](crate::models::ArtistId)
+    ///
+    /// # Reference
+    /// <https://developer.musixmatch.com/documentation/api-reference/artist-get>
+    pub async fn artist(&self, id: ArtistId<'_>) -> Result<Artist> {
+        let mut url = self.new_url("artist.get");
+        {
+            let mut url_query = url.query_pairs_mut();
+
+            let id_param = id.to_param();
+            url_query.append_pair(id_param.0, &id_param.1);
+            url_query.finish();
+        }
+
+        let artist_body = self.execute_get_request::<ArtistBody>(&url).await?;
+        Ok(artist_body.artist)
+    }
+
+    /// Get a list of artists somehow related to the one specified by its ID.
+    ///
+    /// # Parameters
+    /// - `id`: [Artist ID](crate::models::ArtistId)
+    /// - `page_size`: Define the page size for paginated results. Range is 1 to 100.
+    /// - `page`: Define the page number for paginated results, starting from 1.
+    ///
+    /// # Reference
+    /// <https://developer.musixmatch.com/documentation/api-reference/artist-related-get>
+    pub async fn artist_related(
+        &self,
+        id: ArtistId<'_>,
+        page_size: u8,
+        page: u32,
+    ) -> Result<Vec<Artist>> {
+        let mut url = self.new_url("artist.related.get");
+        {
+            let mut url_query = url.query_pairs_mut();
+
+            let id_param = id.to_param();
+            url_query.append_pair(id_param.0, &id_param.1);
+            url_query.append_pair("page_size", &page_size.to_string());
+            url_query.append_pair("page", &page.to_string());
+            url_query.finish();
+        }
+
+        let artist_list_body = self.execute_get_request::<ArtistListBody>(&url).await?;
+        Ok(artist_list_body
+            .artist_list
+            .into_iter()
+            .map(|a| a.artist)
+            .collect())
+    }
+
+    /// Search for artists in the Musixmatch database.
+    ///
+    /// # Parameters
+    /// - `q_artist`: Search term
+    /// - `page_size`: Define the page size for paginated results. Range is 1 to 100.
+    /// - `page`: Define the page number for paginated results, starting from 1.
+    ///
+    /// # Reference
+    /// <https://developer.musixmatch.com/documentation/api-reference/artist-search>
+    pub async fn artist_search(
+        &self,
+        q_artist: &str,
+        page_size: u8,
+        page: u32,
+    ) -> Result<Vec<Artist>> {
+        let mut url = self.new_url("artist.search");
+        {
+            let mut url_query = url.query_pairs_mut();
+
+            url_query.append_pair("q_artist", q_artist);
+            url_query.append_pair("page_size", &page_size.to_string());
+            url_query.append_pair("page", &page.to_string());
+            url_query.finish();
+        }
+
+        let artist_list_body = self.execute_get_request::<ArtistListBody>(&url).await?;
+        Ok(artist_list_body
+            .artist_list
+            .into_iter()
+            .map(|a| a.artist)
+            .collect())
+    }
+
+    /// This api provides you the list of the top artists of a given country.
+    ///
+    /// # Parameters
+    /// - `country`: A valid country code (default: "US")
+    /// - `page_size`: Define the page size for paginated results. Range is 1 to 100.
+    /// - `page`: Define the page number for paginated results, starting from 1.
+    ///
+    /// # Reference
+    /// <https://developer.musixmatch.com/documentation/api-reference/artist-chart-get>
+    pub async fn chart_artists(
+        &self,
+        country: &str,
+        page_size: u8,
+        page: u32,
+    ) -> Result<Vec<Artist>> {
+        let mut url = self.new_url("chart.artists.get");
+        {
+            let mut url_query = url.query_pairs_mut();
+
+            if !country.is_empty() {
+                url_query.append_pair("country", country);
+            }
+            url_query.append_pair("page_size", &page_size.to_string());
+            url_query.append_pair("page", &page.to_string());
+            url_query.finish();
+        }
+
+        let artist_list_body = self.execute_get_request::<ArtistListBody>(&url).await?;
+        Ok(artist_list_body
+            .artist_list
+            .into_iter()
+            .map(|a| a.artist)
+            .collect())
+    }
+}

src/apis/lyrics_api.rs

@@ -0,0 +1,51 @@
+use crate::error::Result;
+use crate::models::lyrics::{Lyrics, LyricsBody};
+use crate::models::TrackId;
+use crate::Musixmatch;
+
+impl Musixmatch {
+    /// Get the lyrics for a track specified by its name and artist.
+    ///
+    /// # Parameters
+    /// - `q_track`: Title of the track
+    /// - `q_artist`: Artist of the track
+    ///
+    /// # Reference
+    /// <https://developer.musixmatch.com/documentation/api-reference/matcher-lyrics-get>
+    pub async fn matcher_lyrics(&self, q_track: &str, q_artist: &str) -> Result<Lyrics> {
+        let mut url = self.new_url("matcher.lyrics.get");
+        {
+            let mut url_query = url.query_pairs_mut();
+            if !q_track.is_empty() {
+                url_query.append_pair("q_track", q_track);
+            }
+            if !q_artist.is_empty() {
+                url_query.append_pair("q_artist", q_artist);
+            }
+            url_query.finish();
+        }
+
+        let lyrics_body = self.execute_get_request::<LyricsBody>(&url).await?;
+        Ok(lyrics_body.lyrics)
+    }
+
+    /// Get the lyrics for a track specified by its ID.
+    ///
+    /// # Parameters
+    /// - `id`: [Track ID](crate::models::TrackId)
+    ///
+    /// # Reference
+    /// <https://developer.musixmatch.com/documentation/api-reference/track-lyrics-get>
+    pub async fn track_lyrics(&self, id: TrackId<'_>) -> Result<Lyrics> {
+        let mut url = self.new_url("track.lyrics.get");
+        {
+            let mut url_query = url.query_pairs_mut();
+            let id_param = id.to_param();
+            url_query.append_pair(id_param.0, &id_param.1);
+            url_query.finish();
+        }
+
+        let lyrics_body = self.execute_get_request::<LyricsBody>(&url).await?;
+        Ok(lyrics_body.lyrics)
+    }
+}

src/apis/mod.rs

@@ -1,6 +1,6 @@
-// pub mod album_api;
-// pub mod artist_api;
-// pub mod lyrics_api;
-// pub mod snippet_api;
-pub mod subtitle_api;
-// pub mod track_api;
+mod album_api;
+mod artist_api;
+mod lyrics_api;
+mod snippet_api;
+mod subtitle_api;
+mod track_api;

src/apis/snippet_api.rs

@@ -0,0 +1,20 @@
+use crate::error::Result;
+use crate::models::snippet::{Snippet, SnippetBody};
+use crate::models::TrackId;
+use crate::Musixmatch;
+
+impl Musixmatch {
+    pub async fn track_snippet(&self, id: TrackId<'_>) -> Result<Snippet> {
+        let mut url = self.new_url("track.snippet.get");
+        {
+            let mut url_query = url.query_pairs_mut();
+
+            let id_param = id.to_param();
+            url_query.append_pair(id_param.0, &id_param.1);
+            url_query.finish();
+        }
+
+        let snippet_body = self.execute_get_request::<SnippetBody>(&url).await?;
+        Ok(snippet_body.snippet)
+    }
+}

src/apis/subtitle_api.rs

@@ -16,7 +16,7 @@ impl Musixmatch {
     ///   so this should be the recommended value.
     ///
     /// # Reference
-    /// <https://developer.musixmatch.com/documentation/api-reference/track-subtitle-get>
+    /// <https://developer.musixmatch.com/documentation/api-reference/matcher-subtitle-get>
     pub async fn matcher_subtitle(
         &self,
         q_track: &str,
@@ -28,8 +28,12 @@ impl Musixmatch {
         let mut url = self.new_url("matcher.subtitle.get");
         {
             let mut url_query = url.query_pairs_mut();
-            url_query.append_pair("q_track", q_track);
-            url_query.append_pair("q_artist", q_artist);
+            if !q_track.is_empty() {
+                url_query.append_pair("q_track", q_track);
+            }
+            if !q_artist.is_empty() {
+                url_query.append_pair("q_artist", q_artist);
+            }
             url_query.append_pair("subtitle_format", subtitle_format.to_param());
             if let Some(f_subtitle_length) = f_subtitle_length {
                 url_query.append_pair("f_subtitle_length", &f_subtitle_length.to_string());
@@ -44,7 +48,6 @@ impl Musixmatch {
         }
 
         let subtitle_body = self.execute_get_request::<SubtitleBody>(&url).await?;
-
         Ok(subtitle_body.subtitle)
     }
 
@@ -87,7 +90,6 @@ impl Musixmatch {
         }
 
         let subtitle_body = self.execute_get_request::<SubtitleBody>(&url).await?;
-
         Ok(subtitle_body.subtitle)
     }
 }

src/apis/track_api.rs

@@ -0,0 +1,426 @@
+use chrono::NaiveDate;
+
+use crate::error::Result;
+use crate::models::track::{Track, TrackBody, TrackListBody};
+use crate::models::{AlbumId, ChartName, Genre, Genres, SortOrder, TrackId};
+use crate::Musixmatch;
+
+impl Musixmatch {
+    /// Get the metadata for a track specified by its name, artist and album.
+    ///
+    /// # Parameters
+    /// - `q_track`: Title of the track
+    /// - `q_artist`: Artist of the track
+    /// - `q_album`: Album name of the track
+    /// - `translation_status`: Get the lyrics [translation status](crate::models::TrackLyricsTranslationStatus)
+    /// - `lang_3c`: Output the lyrics translation status with
+    ///   [ISO 639‑2](https://en.wikipedia.org/wiki/List_of_ISO_639-2_codes) 3-letter language codes
+    ///   instead of [ISO 639‑1](https://en.wikipedia.org/wiki/List_of_ISO_639-1_codes) codes.
+    ///
+    /// # Reference
+    /// <https://developer.musixmatch.com/documentation/api-reference/matcher-track-get>
+    pub async fn matcher_track(
+        &self,
+        q_track: &str,
+        q_artist: &str,
+        q_album: &str,
+        translation_status: bool,
+        lang_3c: bool,
+    ) -> Result<Track> {
+        let mut url = self.new_url("matcher.track.get");
+        {
+            let mut url_query = url.query_pairs_mut();
+
+            if !q_track.is_empty() {
+                url_query.append_pair("q_track", q_track);
+            }
+            if !q_artist.is_empty() {
+                url_query.append_pair("q_artist", q_artist);
+            }
+            if !q_album.is_empty() {
+                url_query.append_pair("q_album", q_album);
+            }
+            if translation_status {
+                url_query.append_pair("part", "track_lyrics_translation_status");
+                url_query.append_pair(
+                    "language_iso_code",
+                    match lang_3c {
+                        true => "0",
+                        false => "1",
+                    },
+                );
+            }
+            url_query.finish();
+        }
+
+        let track_body = self.execute_get_request::<TrackBody>(&url).await?;
+        Ok(track_body.track)
+    }
+
+    /// Get the metadata for a track specified by its id.
+    ///
+    /// # Parameters
+    /// - `id`: [Track ID](crate::models::TrackId)
+    /// - `translation_status`: Get the lyrics [translation status](crate::models::TrackLyricsTranslationStatus)
+    /// - `lang_3c`: Output the lyrics translation status with
+    ///   [ISO 639‑2](https://en.wikipedia.org/wiki/List_of_ISO_639-2_codes) 3-letter language codes
+    ///   instead of [ISO 639‑1](https://en.wikipedia.org/wiki/List_of_ISO_639-1_codes) codes.
+    ///
+    /// # Reference
+    /// <https://developer.musixmatch.com/documentation/api-reference/track-get>
+    pub async fn track(
+        &self,
+        id: TrackId<'_>,
+        translation_status: bool,
+        lang_3c: bool,
+    ) -> Result<Track> {
+        let mut url = self.new_url("track.get");
+        {
+            let mut url_query = url.query_pairs_mut();
+
+            let id_param = id.to_param();
+            url_query.append_pair(id_param.0, &id_param.1);
+            if translation_status {
+                url_query.append_pair("part", "track_lyrics_translation_status");
+                url_query.append_pair(
+                    "language_iso_code",
+                    match lang_3c {
+                        true => "0",
+                        false => "1",
+                    },
+                );
+            }
+            url_query.finish();
+        }
+
+        let track_body = self.execute_get_request::<TrackBody>(&url).await?;
+        Ok(track_body.track)
+    }
+
+    /// Get the list of songs of an album.
+    ///
+    /// # Parameters
+    /// - `id`: [Album ID](crate::models::AlbumId)
+    /// - `f_has_lyrics`: When true, filter only contents with lyrics
+    /// - `page_size`: Define the page size for paginated results. Range is 1 to 100.
+    /// - `page`: Define the page number for paginated results, starting from 1.
+    ///
+    /// # Reference
+    /// <https://developer.musixmatch.com/documentation/api-reference/album-tracks-get>
+    pub async fn album_tracks(
+        &self,
+        id: AlbumId<'_>,
+        f_has_lyrics: bool,
+        page_size: u8,
+        page: u32,
+    ) -> Result<Vec<Track>> {
+        let mut url = self.new_url("album.tracks.get");
+        {
+            let mut url_query = url.query_pairs_mut();
+
+            let id_param = id.to_param();
+            url_query.append_pair(id_param.0, &id_param.1);
+            if f_has_lyrics {
+                url_query.append_pair("f_has_lyrics", "1");
+            }
+            url_query.append_pair("page_size", &page_size.to_string());
+            url_query.append_pair("page", &page.to_string());
+            url_query.finish();
+        }
+
+        let track_list_body = self.execute_get_request::<TrackListBody>(&url).await?;
+        Ok(track_list_body
+            .track_list
+            .into_iter()
+            .map(|t| t.track)
+            .collect())
+    }
+
+    /// Get a list of the top songs of a given country.
+    ///
+    /// # Parameters
+    /// - `country`: A valid country code (default: "US")
+    /// - `chart_name`: Select among [available charts](crate::models::ChartName)
+    /// - `f_has_lyrics`: When true, filter only contents with lyrics
+    /// - `page_size`: Define the page size for paginated results. Range is 1 to 100.
+    /// - `page`: Define the page number for paginated results, starting from 1.
+    ///
+    /// # Reference
+    /// <https://developer.musixmatch.com/documentation/api-reference/track-chart-get>
+    pub async fn chart_tracks(
+        &self,
+        country: &str,
+        chart_name: ChartName,
+        f_has_lyrics: bool,
+        page_size: u8,
+        page: u32,
+    ) -> Result<Vec<Track>> {
+        let mut url = self.new_url("chart.tracks.get");
+        {
+            let mut url_query = url.query_pairs_mut();
+
+            if !country.is_empty() {
+                url_query.append_pair("country", country);
+            }
+            url_query.append_pair("chart_name", chart_name.as_str());
+            if f_has_lyrics {
+                url_query.append_pair("f_has_lyrics", "1");
+            }
+            url_query.append_pair("page_size", &page_size.to_string());
+            url_query.append_pair("page", &page.to_string());
+            url_query.finish();
+        }
+
+        let track_list_body = self.execute_get_request::<TrackListBody>(&url).await?;
+        Ok(track_list_body
+            .track_list
+            .into_iter()
+            .map(|t| t.track)
+            .collect())
+    }
+
+    /// Get the list of the music genres the Musixmatch catalogue.
+    ///
+    /// # Reference
+    /// <https://developer.musixmatch.com/documentation/api-reference/music-genres-get>
+    pub async fn genres(&self) -> Result<Vec<Genre>> {
+        let url = self.new_url("music.genres.get");
+        let genres = self.execute_get_request::<Genres>(&url).await?;
+        Ok(genres.music_genre_list)
+    }
+
+    /// Create a new query builder for searching tracks in the Musixmatch database.
+    ///
+    /// **Note:** The search results are unsorted the by default. You probably want
+    /// to sort by popularity (`.s_track_rating(SortOrder::Desc)`) to get relevant results.
+    ///
+    /// # Example
+    /// ```ignore
+    /// let tracks = musixmatch
+    ///   .track_search()
+    ///   .q_lyrics("Never gonna run around and desert you")
+    ///   .s_track_rating(SortOrder::Desc)
+    ///   .send(10, 1)
+    ///   .await?;
+    /// ```
+    ///
+    /// # Reference
+    /// <https://developer.musixmatch.com/documentation/api-reference/track-search>
+    pub fn track_search(&self) -> TrackSearchQuery {
+        TrackSearchQuery {
+            mxm: self.clone(),
+            q_track: None,
+            q_artist: None,
+            q_lyrics: None,
+            q_track_artist: None,
+            q_writer: None,
+            q: None,
+            f_artist_id: None,
+            f_music_genre_id: None,
+            f_lyrics_language: None,
+            f_has_lyrics: false,
+            f_track_release_group_first_release_date_min: None,
+            f_track_release_group_first_release_date_max: None,
+            s_artist_rating: None,
+            s_track_rating: None,
+            quorum_factor: None,
+        }
+    }
+}
+
+pub struct TrackSearchQuery<'a> {
+    mxm: Musixmatch,
+
+    q_track: Option<&'a str>,
+    q_artist: Option<&'a str>,
+    q_lyrics: Option<&'a str>,
+    q_track_artist: Option<&'a str>,
+    q_writer: Option<&'a str>,
+    q: Option<&'a str>,
+    f_artist_id: Option<u64>,
+    f_music_genre_id: Option<u64>,
+    f_lyrics_language: Option<&'a str>,
+    f_has_lyrics: bool,
+    f_track_release_group_first_release_date_min: Option<NaiveDate>,
+    f_track_release_group_first_release_date_max: Option<NaiveDate>,
+    s_artist_rating: Option<SortOrder>,
+    s_track_rating: Option<SortOrder>,
+    quorum_factor: Option<f32>,
+}
+
+impl<'a> TrackSearchQuery<'a> {
+    /// Track title
+    pub fn q_track(mut self, q_track: &'a str) -> Self {
+        self.q_track = Some(q_track);
+        self
+    }
+
+    /// Track artist
+    pub fn q_artist(mut self, q_artist: &'a str) -> Self {
+        self.q_artist = Some(q_artist);
+        self
+    }
+
+    /// Any word in the lyrics
+    pub fn q_lyrics(mut self, q_lyrics: &'a str) -> Self {
+        self.q_lyrics = Some(q_lyrics);
+        self
+    }
+
+    /// Any word in the song title or artist name
+    pub fn q_track_artist(mut self, q_track_artist: &'a str) -> Self {
+        self.q_track_artist = Some(q_track_artist);
+        self
+    }
+
+    /// Track lyrics writer
+    pub fn q_writer(mut self, q_writer: &'a str) -> Self {
+        self.q_writer = Some(q_writer);
+        self
+    }
+
+    /// Any word in the song title or artist name or lyrics
+    pub fn q(mut self, q: &'a str) -> Self {
+        self.q = Some(q);
+        self
+    }
+
+    /// When set, filter by this artist ID
+    pub fn f_artist_id(mut self, f_artist_id: u64) -> Self {
+        self.f_artist_id = Some(f_artist_id);
+        self
+    }
+
+    /// When set, filter by this genre ID
+    pub fn f_music_genre_id(mut self, f_music_genre_id: u64) -> Self {
+        self.f_music_genre_id = Some(f_music_genre_id);
+        self
+    }
+
+    /// Filter by the lyrics language ("en", "it", ...)
+    pub fn f_lyrics_language(mut self, f_lyrics_language: &'a str) -> Self {
+        self.f_lyrics_language = Some(f_lyrics_language);
+        self
+    }
+
+    /// When set, filter only contents with lyrics
+    pub fn f_has_lyrics(mut self) -> Self {
+        self.f_has_lyrics = true;
+        self
+    }
+
+    /// When set, filter the tracks with release date newer than the given value
+    pub fn f_track_release_date_min(mut self, f_track_release_date_min: NaiveDate) -> Self {
+        self.f_track_release_group_first_release_date_min = Some(f_track_release_date_min);
+        self
+    }
+
+    /// When set, filter the tracks with release date older than the given value
+    pub fn f_track_release_date_max(mut self, f_track_release_date_max: NaiveDate) -> Self {
+        self.f_track_release_group_first_release_date_max = Some(f_track_release_date_max);
+        self
+    }
+
+    /// Sort by artist popularity (asc|desc)
+    pub fn s_artist_rating(mut self, s_artist_rating: SortOrder) -> Self {
+        self.s_artist_rating = Some(s_artist_rating);
+        self
+    }
+
+    /// Sort by track popularity (asc|desc)
+    pub fn s_track_rating(mut self, s_track_rating: SortOrder) -> Self {
+        self.s_track_rating = Some(s_track_rating);
+        self
+    }
+
+    /// Search only a part of the given query string.
+    ///
+    /// Allowed range is (0.1 – 0.9)
+    pub fn quorum_factor(mut self, quorum_factor: f32) -> Self {
+        self.quorum_factor = Some(quorum_factor);
+        self
+    }
+
+    /// Execute the search query.
+    ///
+    /// # Parameters
+    /// - `page_size`: Define the page size for paginated results. Range is 1 to 100.
+    /// - `page`: Define the page number for paginated results, starting from 1.
+    pub async fn send(&self, page_size: u8, page: u32) -> Result<Vec<Track>> {
+        let mut url = self.mxm.new_url("track.search");
+        {
+            let mut url_query = url.query_pairs_mut();
+
+            if let Some(q_track) = self.q_track {
+                url_query.append_pair("q_track", q_track);
+            }
+            if let Some(q_artist) = self.q_artist {
+                url_query.append_pair("q_artist", q_artist);
+            }
+            if let Some(q_lyrics) = self.q_lyrics {
+                url_query.append_pair("q_lyrics", q_lyrics);
+            }
+            if let Some(q_track_artist) = self.q_track_artist {
+                url_query.append_pair("q_track_artist", q_track_artist);
+            }
+            if let Some(q_writer) = self.q_writer {
+                url_query.append_pair("q_writer", q_writer);
+            }
+            if let Some(q) = self.q {
+                url_query.append_pair("q", q);
+            }
+            if let Some(f_artist_id) = self.f_artist_id {
+                url_query.append_pair("f_artist_id", &f_artist_id.to_string());
+            }
+            if let Some(f_music_genre_id) = self.f_music_genre_id {
+                url_query.append_pair("f_music_genre_id", &f_music_genre_id.to_string());
+            }
+            if let Some(f_lyrics_language) = self.f_lyrics_language {
+                url_query.append_pair("f_lyrics_language", f_lyrics_language);
+            }
+            if self.f_has_lyrics {
+                url_query.append_pair("f_has_lyrics", "1");
+            }
+            if let Some(f_track_release_group_first_release_date_min) =
+                self.f_track_release_group_first_release_date_min
+            {
+                url_query.append_pair(
+                    "f_track_release_group_first_release_date_min",
+                    &f_track_release_group_first_release_date_min
+                        .format("%Y%m%d")
+                        .to_string(),
+                );
+            }
+            if let Some(f_track_release_group_first_release_date_max) =
+                self.f_track_release_group_first_release_date_max
+            {
+                url_query.append_pair(
+                    "f_track_release_group_first_release_date_max",
+                    &f_track_release_group_first_release_date_max
+                        .format("%Y%m%d")
+                        .to_string(),
+                );
+            }
+            if let Some(s_artist_rating) = &self.s_artist_rating {
+                url_query.append_pair("s_artist_rating", s_artist_rating.as_str());
+            }
+            if let Some(s_track_rating) = &self.s_track_rating {
+                url_query.append_pair("s_track_rating", s_track_rating.as_str());
+            }
+            if let Some(quorum_factor) = self.quorum_factor {
+                url_query.append_pair("quorum_factor", &quorum_factor.to_string());
+            }
+
+            url_query.append_pair("page_size", &page_size.to_string());
+            url_query.append_pair("page", &page.to_string());
+            url_query.finish();
+        }
+
+        let track_list_body = self.mxm.execute_get_request::<TrackListBody>(&url).await?;
+        Ok(track_list_body
+            .track_list
+            .into_iter()
+            .map(|t| t.track)
+            .collect())
+    }
+}

src/error.rs

@@ -10,7 +10,7 @@ pub enum Error {
     TokenExpired,
     #[error("Error {status_code} returned by the Musixmatch API. Message: '{msg}'")]
     MusixmatchError { status_code: u16, msg: String },
-    #[error("Musixmatch returned no data")]
+    #[error("Musixmatch returned no data or data that could not be deserialized")]
     NoData,
     #[error("You entered wrong credentials")]
     WrongCredentials,

src/lib.rs

@@ -33,6 +33,9 @@ mod error;
 pub mod models;
 pub mod storage;
 
+use std::fmt::Debug;
+use std::sync::Arc;
+
 pub use error::Error;
 
 use chrono::{Datelike, Local};
@@ -49,8 +52,9 @@ use tokio::sync::Mutex;
 use crate::api_model::Resp;
 use crate::error::Result;
 
+#[derive(Clone)]
 pub struct Musixmatch {
-    inner: MusixmatchRef,
+    inner: Arc<MusixmatchRef>,
 }
 
 struct MusixmatchRef {
@@ -113,7 +117,7 @@ impl Musixmatch {
             .unwrap();
 
         Self {
-            inner: MusixmatchRef {
+            inner: Arc::new(MusixmatchRef {
                 http,
                 storage,
                 email: email.to_owned(),
@@ -122,7 +126,7 @@ impl Musixmatch {
                 brand,
                 device,
                 ua,
-            },
+            }),
         }
     }
 

src/models/album.rs

@@ -0,0 +1,86 @@
+use chrono::{DateTime, Utc};
+use serde::{Deserialize, Serialize};
+
+use super::Genres;
+
+#[derive(Debug, Deserialize)]
+pub(crate) struct AlbumBody {
+    pub album: Album,
+}
+
+#[derive(Debug, Deserialize)]
+pub(crate) struct AlbumListBody {
+    pub album_list: Vec<AlbumBody>,
+}
+
+/// Album: an album of songs in the Musixmatch database.
+#[derive(Clone, Debug, PartialEq, Eq, Default, Serialize, Deserialize)]
+pub struct Album {
+    /// Unique Musixmatch Album ID
+    pub album_id: u64,
+    /// Musicbrainz album ID
+    ///
+    /// **Note:** most albums dont have this entry set
+    #[serde(default)]
+    pub album_mbid: String,
+    /// Album name
+    pub album_name: String,
+    /// Popularity of the album from 0 to 100
+    #[serde(default)]
+    pub album_rating: u8,
+    /// Number of tracks on the album
+    pub album_track_count: u16,
+    /// Album release date (e.g. "2009-07-07")
+    #[serde(default)]
+    pub album_release_date: String,
+    /// Album type (Single / EP / Album)
+    pub album_release_type: String,
+
+    /// Musixmatch artist ID
+    #[serde(default)]
+    pub artist_id: u64,
+    /// Artist name
+    pub artist_name: String,
+
+    /// List of primary genres
+    #[serde(default)]
+    pub primary_genres: Genres,
+    /// Secondary genres / Subgenres
+    ///
+    /// Example: primary_genres: Pop, secondary_genres: K-Pop / Mandopop
+    ///
+    /// Note that this schema is not applied to all tracks on Musixmatch.
+    /// There are for example many K-Pop tracks with both Pop and K-Pop
+    /// tagged as primary genre and this field empty.
+    #[serde(default)]
+    pub secondary_genres: Genres,
+
+    /// Album copyright text
+    #[serde(default)]
+    pub album_copyright: String,
+    /// Album label / recording company
+    #[serde(default)]
+    pub album_label: String,
+    /// Human-readable URL-safe Album ID
+    ///
+    /// Example: `LMFAO/Party-Rock-5`
+    pub album_vanity_id: String,
+
+    /// Date and time when the album was last updated
+    pub updated_time: DateTime<Utc>,
+
+    /// Album cover URL (100x100px)
+    #[serde(default)]
+    pub album_coverart_100x100: String,
+    /// Album cover URL (350x350px)
+    #[serde(default)]
+    pub album_coverart_350x350: String,
+    /// Album cover URL (500x500px)
+    #[serde(default)]
+    pub album_coverart_500x500: String,
+    /// Album cover URL (800x800px)
+    ///
+    /// **Note:** not present on a lot of albums
+    #[serde(default)]
+    pub album_coverart_800x800: String,
+}

src/models/artist.rs

@@ -0,0 +1,111 @@
+use chrono::{DateTime, Utc};
+use serde::{Deserialize, Serialize};
+
+use super::Genres;
+
+#[derive(Debug, Deserialize)]
+pub(crate) struct ArtistBody {
+    pub artist: Artist,
+}
+
+#[derive(Debug, Deserialize)]
+pub(crate) struct ArtistListBody {
+    pub artist_list: Vec<ArtistBody>,
+}
+
+/// Artist: an artist in the Musixmatch database.
+#[derive(Clone, Debug, PartialEq, Eq, Default, Serialize, Deserialize)]
+pub struct Artist {
+    /// Musixmatch Artist ID
+    pub artist_id: u64,
+    /// Musicbrainz Artist ID
+    ///
+    /// **Note:** most tracks dont have this entry set
+    #[serde(default)]
+    pub artist_mbid: String,
+
+    /// Artist name
+    pub artist_name: String,
+    /// Artist name in different languages
+    #[serde(default)]
+    pub artist_name_translation_list: Vec<ArtistNameTranslation>,
+    /// Artist origin as a 2-letter country code (e.g. "US")
+    #[serde(default)]
+    pub artist_country: String,
+    // Alternative names for the artist (e.g. in different languages)
+    #[serde(default)]
+    pub artist_alias_list: Vec<ArtistAlias>,
+    /// Popularity of the artist from 0 to 100
+    #[serde(default)]
+    pub artist_rating: u8,
+
+    /// Primary genres of the artist
+    #[serde(default)]
+    pub primary_genres: Genres,
+    /// Secondary genres / Subgenres
+    ///
+    /// Example: primary_genres: Pop, secondary_genres: K-Pop / Mandopop
+    ///
+    /// Note that this schema is not applied to all tracks on Musixmatch.
+    /// There are for example many K-Pop tracks with both Pop and K-Pop
+    /// tagged as primary genre and this field empty.
+    #[serde(default)]
+    pub secondary_genres: Genres,
+
+    #[serde(default)]
+    pub artist_twitter_url: String,
+    #[serde(default)]
+    pub artist_website_url: String,
+    #[serde(default)]
+    pub artist_instagram_url: String,
+    #[serde(default)]
+    pub artist_tiktok_url: String,
+    #[serde(default)]
+    pub artist_facebook_url: String,
+
+    /// URL-safe human-readable artist ID
+    ///
+    /// Example: "aespa"
+    pub artist_vanity_id: String,
+    /// Date and time when the artist was last updated
+    pub updated_time: DateTime<Utc>,
+    /// Year of the start of the artist's presence
+    #[serde(default)]
+    pub begin_date_year: String,
+    /// Start date of the artist's presence in YYYY-MM-DD format
+    ///
+    /// **Info:** the default value is `"0000-00-00"`
+    #[serde(default)]
+    pub begin_date: String,
+    /// Year of the end of the artist's presence
+    #[serde(default)]
+    pub end_date_year: String,
+    /// End date of the artist's presence in YYYY-MM-DD format
+    ///
+    /// **Info:** the default value is `"0000-00-00"`
+    #[serde(default)]
+    pub end_date: String,
+}
+
+/// Alternative artist name (e.g. different languages)
+#[derive(Clone, Debug, PartialEq, Eq, Default, Serialize, Deserialize)]
+pub struct ArtistAlias {
+    pub artist_alias: String,
+}
+
+/// Alternative artist name (e.g. different languages)
+#[derive(Clone, Debug, PartialEq, Eq, Default, Serialize, Deserialize)]
+pub struct ArtistNameTranslation {
+    pub artist_name_translation: ArtistNameTranslationInner,
+}
+
+/// Alternative artist name (e.g. different languages)
+#[derive(Clone, Debug, PartialEq, Eq, Default, Serialize, Deserialize)]
+pub struct ArtistNameTranslationInner {
+    /// Language code (e.g. "EN")
+    ///
+    /// **Note:** the language code is uppercase for some reason
+    pub language: String,
+    /// Translated name
+    pub translation: String,
+}

src/models/genre.rs

@@ -0,0 +1,30 @@
+use serde::{Deserialize, Serialize};
+
+#[derive(Default, Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
+#[non_exhaustive]
+pub struct Genres {
+    pub music_genre_list: Vec<Genre>,
+}
+
+#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
+#[non_exhaustive]
+pub struct Genre {
+    pub music_genre: GenreInner,
+}
+
+#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
+#[non_exhaustive]
+pub struct GenreInner {
+    /// Unique Musixmatch Genre ID
+    pub music_genre_id: u64,
+    /// ID of supergenre
+    pub music_genre_parent_id: u64,
+    /// Genre name
+    pub music_genre_name: String,
+    /// Long genre name
+    pub music_genre_name_extended: String,
+    /// URL-safe genre name
+    ///
+    /// **Note:** Jazz / Bebop (ID: 1291) has this set to None for some reason.
+    pub music_genre_vanity: Option<String>,
+}

src/models/id.rs

@@ -0,0 +1,79 @@
+/// Track identifiers from different sources
+#[derive(Debug, Clone, PartialEq, Eq)]
+#[non_exhaustive]
+pub enum TrackId<'a> {
+    /// Musixmatch ID that is the same for equivalent tracks (e.g. same track on different albums)
+    Commontrack(u64),
+    /// Unique Musixmatch track ID
+    TrackId(u64),
+    /// Human-readable Musixmatch ID
+    ///
+    /// Used in the URLs on the Musixmatch website.
+    ///
+    /// Example: `aespa/Black-Mamba`
+    CommontrackVanity(&'a str),
+    /// [International Standard Recording Code](https://en.wikipedia.org/wiki/International_Standard_Recording_Code)
+    Isrc(&'a str),
+    /// Musicbrainz ID
+    ///
+    /// **Note:** Musicbrainz IDs are not present for most tracks in
+    /// the Musixmatch database, so use them only with a fallback.
+    Musicbrainz(&'a str),
+    /// Spotify track ID
+    Spotify(&'a str),
+}
+
+impl<'a> TrackId<'a> {
+    pub(crate) fn to_param(&self) -> (&'static str, String) {
+        match self {
+            TrackId::Commontrack(id) => ("commontrack_id", id.to_string()),
+            TrackId::TrackId(id) => ("track_id", id.to_string()),
+            TrackId::CommontrackVanity(id) => ("commontrack_vanity_id", id.to_string()),
+            TrackId::Isrc(id) => ("track_isrc", id.to_string()),
+            TrackId::Musicbrainz(id) => ("track_mbid", id.to_string()),
+            TrackId::Spotify(id) => ("track_spotify_id", id.to_string()),
+        }
+    }
+}
+
+/// Artist identifiers from different sources
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub enum ArtistId<'a> {
+    /// Unique Musixmatch artist ID
+    ArtistId(u64),
+    /// Musicbrainz ID
+    ///
+    /// **Note:** Musicbrainz IDs are not present for most artists in
+    /// the Musixmatch database, so use them only with a fallback.
+    Musicbrainz(&'a str),
+}
+
+impl<'a> ArtistId<'a> {
+    pub(crate) fn to_param(&self) -> (&'static str, String) {
+        match self {
+            ArtistId::ArtistId(id) => ("artist_id", id.to_string()),
+            ArtistId::Musicbrainz(id) => ("artist_mbid", id.to_string()),
+        }
+    }
+}
+
+/// Album identifiers from different sources
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub enum AlbumId<'a> {
+    /// Unique Musixmatch artist ID
+    AlbumId(u64),
+    /// Musicbrainz ID
+    ///
+    /// **Note:** Musicbrainz IDs are not present for most artists in
+    /// the Musixmatch database, so use them only with a fallback.
+    Musicbrainz(&'a str),
+}
+
+impl<'a> AlbumId<'a> {
+    pub(crate) fn to_param(&self) -> (&'static str, String) {
+        match self {
+            AlbumId::AlbumId(id) => ("album_id", id.to_string()),
+            AlbumId::Musicbrainz(id) => ("album_mbid", id.to_string()),
+        }
+    }
+}

src/models/lyrics.rs

@@ -0,0 +1,42 @@
+use chrono::{DateTime, Utc};
+use serde::{Deserialize, Serialize};
+
+#[derive(Debug, Deserialize)]
+pub(crate) struct LyricsBody {
+    pub lyrics: Lyrics,
+}
+
+/// Lyrics from the Musixmatch database.
+#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
+#[non_exhaustive]
+pub struct Lyrics {
+    /// Unique Musixmatch lyrics ID
+    pub lyrics_id: u64,
+    /// True if the track is instrumental
+    #[serde(default, deserialize_with = "crate::api_model::bool_from_int")]
+    pub instrumental: bool,
+    /// True if the lyrics contain explicit language
+    #[serde(default, deserialize_with = "crate::api_model::bool_from_int")]
+    pub explicit: bool,
+    /// Lyrics text
+    pub lyrics_body: String,
+    /// Language code (e.g. "en")
+    #[serde(default)]
+    pub lyrics_language: String,
+    /// Language name (e.g. "English")
+    #[serde(default)]
+    pub lyrics_language_description: String,
+    /// Copyright text of the lyrics
+    ///
+    /// Ends with a newline.
+    ///
+    /// Example:
+    /// ```text
+    /// Writer(s): David Hodges
+    /// Copyright: Emi Blackwood Music Inc., 12.06 Publishing, Hipgnosis Sfh I Limited, Hifi Music Ip Issuer L.p.
+    /// ```
+    #[serde(default)]
+    pub lyrics_copyright: String,
+    /// Date and time when the lyrics were last updated
+    pub updated_time: DateTime<Utc>,
+}

src/models/mod.rs

@@ -4,5 +4,33 @@ pub use subtitle::SubtitleFormat;
 pub use subtitle::SubtitleLine;
 pub use subtitle::SubtitleTime;
 
-mod track_id;
-pub use track_id::TrackId;
+mod id;
+pub use id::AlbumId;
+pub use id::ArtistId;
+pub use id::TrackId;
+
+pub(crate) mod lyrics;
+pub use lyrics::Lyrics;
+
+pub(crate) mod track;
+pub use track::ChartName;
+pub use track::SortOrder;
+pub use track::Track;
+pub use track::TrackLyricsTranslationStatus;
+
+mod genre;
+pub use genre::Genre;
+pub use genre::GenreInner;
+pub use genre::Genres;
+
+pub(crate) mod artist;
+pub use artist::Artist;
+pub use artist::ArtistAlias;
+pub use artist::ArtistNameTranslation;
+pub use artist::ArtistNameTranslationInner;
+
+pub(crate) mod album;
+pub use album::Album;
+
+pub(crate) mod snippet;
+pub use snippet::Snippet;

src/models/snippet.rs

@@ -0,0 +1,30 @@
+use chrono::{DateTime, Utc};
+use serde::{Deserialize, Serialize};
+
+#[derive(Debug, Deserialize)]
+pub(crate) struct SnippetBody {
+    pub snippet: Snippet,
+}
+
+/// Snippet of lyrics text in the Musixmatch database.
+///
+/// A lyrics snippet is a very short representation of a song lyrics.
+/// It’s usually twenty to a hundred characters long and it’s calculated
+/// extracting a sequence of words from the lyrics.
+///
+/// Example: "There's not a thing that I would change"
+#[derive(Clone, Debug, PartialEq, Eq, Default, Serialize, Deserialize)]
+pub struct Snippet {
+    /// Unique Musixmatch Snippet ID
+    pub snippet_id: u64,
+    /// Snippet language code (e.g. "en")
+    #[serde(default)]
+    pub snippet_language: String,
+    /// True if the track is instrumental
+    #[serde(default, deserialize_with = "crate::api_model::bool_from_int")]
+    pub instrumental: bool,
+    /// Date and time when the snippet was last updated
+    pub updated_time: DateTime<Utc>,
+    /// Snippet text
+    pub snippet_body: String,
+}

src/models/subtitle.rs

@@ -158,9 +158,11 @@ pub struct Subtitle {
     /// Subtitle / synchronized lyrics in the requested format
     pub subtitle_body: String,
     /// Language code (e.g. "en")
-    pub subtitle_language: Option<String>,
+    #[serde(default)]
+    pub subtitle_language: String,
     /// Language name (e.g. "English")
-    pub subtitle_language_description: Option<String>,
+    #[serde(default)]
+    pub subtitle_language_description: String,
     /// Copyright text of the lyrics
     ///
     /// Ends with a newline.

src/models/track.rs

@@ -0,0 +1,194 @@
+use chrono::{DateTime, Utc};
+use serde::{Deserialize, Serialize};
+
+use super::Genres;
+
+#[derive(Debug, Deserialize)]
+pub(crate) struct TrackBody {
+    pub track: Track,
+}
+
+#[derive(Debug, Deserialize)]
+pub(crate) struct TrackListBody {
+    pub track_list: Vec<TrackBody>,
+}
+
+/// Track: a song in the Musixmatch database
+#[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
+#[non_exhaustive]
+pub struct Track {
+    /// Unique Musixmatch Track ID
+    pub track_id: u64,
+    /// Track Musicbrainz ID
+    ///
+    /// **Note:** most tracks dont have this entry set
+    #[serde(default)]
+    pub track_mbid: String,
+    /// [International Standard Recording Code](https://en.wikipedia.org/wiki/International_Standard_Recording_Code)
+    #[serde(default)]
+    pub track_isrc: String,
+    /// [ISRCs](https://en.wikipedia.org/wiki/International_Standard_Recording_Code) of equivalent tracks (e.g. on different albums)
+    #[serde(default)]
+    pub commontrack_isrcs: Vec<Vec<String>>,
+    /// Track ID on Spotify
+    #[serde(default)]
+    pub track_spotify_id: String,
+    /// Spotify IDs of equivalent tracks (e.g. on different albums)
+    #[serde(default)]
+    pub commontrack_spotify_ids: Vec<String>,
+    /// Track ID on Soundcloud
+    #[serde(default)]
+    pub track_soundcloud_id: u64,
+    /// Track ID on XBox Music
+    #[serde(default)]
+    pub track_xboxmusic_id: String,
+
+    /// Title of the track
+    pub track_name: String,
+    /// Popularity of the track from 0 to 100
+    #[serde(default)]
+    pub track_rating: u8,
+    /// Length of the track in seconds
+    #[serde(default)]
+    pub track_length: u32,
+    /// Musixmatch ID that is the same for equivalent tracks (e.g. same track on different albums)
+    pub commontrack_id: u64,
+
+    /// True if the track is instrumental
+    #[serde(default, deserialize_with = "crate::api_model::bool_from_int")]
+    pub instrumental: bool,
+    /// True if the lyrics contain explicit language
+    #[serde(default, deserialize_with = "crate::api_model::bool_from_int")]
+    pub explicit: bool,
+    /// True if lyrics are available
+    #[serde(default, deserialize_with = "crate::api_model::bool_from_int")]
+    pub has_lyrics: bool,
+    /// True if subtitles (synchronized lyrics) are available
+    #[serde(default, deserialize_with = "crate::api_model::bool_from_int")]
+    pub has_subtitles: bool,
+    /// True if richsync lyrics (synchronized by word) are available
+    #[serde(default, deserialize_with = "crate::api_model::bool_from_int")]
+    pub has_richsync: bool,
+    /// True if the track structure is available
+    #[serde(default, deserialize_with = "crate::api_model::bool_from_int")]
+    pub has_track_structure: bool,
+
+    /// Amount of users that favorited the track on Musixmatch
+    #[serde(default)]
+    pub num_favourite: u32,
+
+    /// Musixmatch lyrics ID
+    #[serde(default)]
+    pub lyrics_id: u64,
+    /// Musixmatch subtitle ID
+    #[serde(default)]
+    pub subtitle_id: u64,
+
+    /// Musixmatch album ID
+    #[serde(default)]
+    pub album_id: u64,
+    /// Album name
+    #[serde(default)]
+    pub album_name: String,
+
+    /// Musixmatch artist ID
+    pub artist_id: u64,
+    /// Musicbrainz artist ID
+    ///
+    /// **Note:** most tracks dont have this entry set
+    #[serde(default)]
+    pub artist_mbid: String,
+    /// Artist name
+    #[serde(default)]
+    pub artist_name: String,
+
+    /// Album cover URL (100x100px)
+    #[serde(default)]
+    pub album_coverart_100x100: String,
+    /// Album cover URL (350x350px)
+    #[serde(default)]
+    pub album_coverart_350x350: String,
+    /// Album cover URL (500x500px)
+    #[serde(default)]
+    pub album_coverart_500x500: String,
+    /// Album cover URL (800x800px)
+    ///
+    /// **Note:** not present on a lot of albums
+    #[serde(default)]
+    pub album_coverart_800x800: String,
+
+    /// Human-readable Musixmatch ID
+    ///
+    /// Used in the URLs on the Musixmatch website.
+    ///
+    /// Example: `aespa/Black-Mamba`
+    pub commontrack_vanity_id: String,
+
+    /// Track release date
+    #[serde(default, deserialize_with = "crate::api_model::optional_date")]
+    pub first_release_date: Option<DateTime<Utc>>,
+    /// Date and time when the track was last updated
+    pub updated_time: DateTime<Utc>,
+
+    /// List of primary genres
+    #[serde(default)]
+    pub primary_genres: Genres,
+    /// Secondary genres / Subgenres
+    ///
+    /// Example: primary_genres: Pop, secondary_genres: K-Pop / Mandopop
+    ///
+    /// Note that this schema is not applied to all tracks on Musixmatch.
+    /// There are for example many K-Pop tracks with both Pop and K-Pop
+    /// tagged as primary genre and this field empty.
+    #[serde(default)]
+    pub secondary_genres: Genres,
+
+    /// Status of lyrics translation
+    #[serde(default)]
+    pub track_lyrics_translation_status: Vec<TrackLyricsTranslationStatus>,
+}
+
+#[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
+#[non_exhaustive]
+pub struct TrackLyricsTranslationStatus {
+    /// Source language code (e.g. "ko")
+    pub from: String,
+    /// Target language code (e.g. "en")
+    pub to: String,
+    /// Translation ratio from 0 (untranslated) - 1 (fully translated)
+    ///
+    /// **NOT** the percentage
+    pub perc: f32,
+}
+
+/// Available track charts
+#[derive(Debug, Copy, Clone, PartialEq, Eq)]
+pub enum ChartName {
+    /// Editorial chart
+    Top,
+    /// Most viewed lyrics in the last 2 hours
+    Hot,
+}
+
+impl ChartName {
+    pub(crate) fn as_str(&self) -> &str {
+        match self {
+            ChartName::Top => "top",
+            ChartName::Hot => "hot",
+        }
+    }
+}
+
+pub enum SortOrder {
+    Asc,
+    Desc,
+}
+
+impl SortOrder {
+    pub(crate) fn as_str(&self) -> &str {
+        match self {
+            SortOrder::Asc => "asc",
+            SortOrder::Desc => "desc",
+        }
+    }
+}

src/models/track_id.rs

@@ -1,37 +0,0 @@
-#[derive(Debug, Clone, PartialEq, Eq)]
-#[non_exhaustive]
-pub enum TrackId<'a> {
-    /// Musixmatch ID for a unified track
-    Commontrack(u64),
-    /// Unique Musixmatch track ID
-    TrackId(u64),
-    /// Human-readable Musixmatch ID
-    ///
-    /// Used in the URLs on the Musixmatch website.
-    ///
-    /// Example: `aespa/Black-Mamba`
-    CommontrackVanity(&'a str),
-    /// [International Standard Recording Code](https://en.wikipedia.org/wiki/International_Standard_Recording_Code)
-    Isrc(&'a str),
-    /// Musicbrainz ID
-    ///
-    /// **Note:** Musicbrainz IDs are not present for most tracks in
-    /// the Musixmatch database, so use them only with a fallback.
-    Musicbrainz(&'a str),
-    /// Spotify track ID
-    Spotify(&'a str),
-}
-
-impl<'a> TrackId<'a> {
-    pub(crate) fn to_param(&self) -> (&'static str, String) {
-        match &self {
-            // &["commontrack_id", &id.to_string()]
-            TrackId::Commontrack(id) => ("commontrack_id", id.to_string()),
-            TrackId::TrackId(id) => ("track_id", id.to_string()),
-            TrackId::CommontrackVanity(id) => ("commontrack_vanity_id", id.to_string()),
-            TrackId::Isrc(id) => ("track_isrc", id.to_string()),
-            TrackId::Musicbrainz(id) => ("track_mbid", id.to_string()),
-            TrackId::Spotify(id) => ("track_spotify_id", id.to_string()),
-        }
-    }
-}

tests/album_test.rs

@@ -0,0 +1,123 @@
+use chrono::TimeZone;
+use dotenv::dotenv;
+use musixmatch_inofficial::{
+    models::{AlbumId, ArtistId},
+    storage::FileStorage,
+    Error, Musixmatch,
+};
+use rstest::rstest;
+
+#[ctor::ctor]
+fn init() {
+    let _ = dotenv();
+    env_logger::init();
+}
+
+fn new_mxm() -> Musixmatch {
+    Musixmatch::new(
+        &std::env::var("MUSIXMATCH_EMAIL").unwrap(),
+        &std::env::var("MUSIXMATCH_PASSWORD").unwrap(),
+        Some(Box::new(FileStorage::default())),
+    )
+}
+
+#[rstest]
+#[case::id(AlbumId::AlbumId(14323438))]
+#[case::musicbrainz(AlbumId::Musicbrainz("0fa2a7db-d26b-412e-beb0-df9855818b54"))]
+#[tokio::test]
+async fn by_id(#[case] album_id: AlbumId<'_>) {
+    let album = new_mxm().album(album_id).await.unwrap();
+
+    assert_eq!(album.album_id, 14323438);
+    assert_eq!(album.album_mbid, "0fa2a7db-d26b-412e-beb0-df9855818b54");
+    assert_eq!(album.album_name, "Gangnam Style - Single");
+    assert!(album.album_rating > 50);
+    assert_eq!(album.album_track_count, 1);
+    assert_eq!(album.album_release_date, "2012-01-01");
+    assert_eq!(album.album_release_type, "Single");
+    assert_eq!(album.artist_id, 410698);
+    assert_eq!(album.artist_name, "Psy");
+
+    let first_pri_genre = &album.primary_genres.music_genre_list[0].music_genre;
+    assert_eq!(first_pri_genre.music_genre_id, 14);
+    assert_eq!(first_pri_genre.music_genre_parent_id, 34);
+    assert_eq!(first_pri_genre.music_genre_name, "Pop");
+    assert_eq!(first_pri_genre.music_genre_name_extended, "Pop");
+    assert_eq!(first_pri_genre.music_genre_vanity.as_ref().unwrap(), "Pop");
+
+    let first_sec_genre = &album.secondary_genres.music_genre_list[0].music_genre;
+    assert_eq!(first_sec_genre.music_genre_id, 17);
+    assert_eq!(first_sec_genre.music_genre_parent_id, 34);
+    assert_eq!(first_sec_genre.music_genre_name, "Dance");
+    assert_eq!(first_sec_genre.music_genre_name_extended, "Dance");
+    assert_eq!(
+        first_sec_genre.music_genre_vanity.as_ref().unwrap(),
+        "Dance"
+    );
+
+    assert_eq!(
+        album.album_copyright,
+        "℗ 2012 Schoolboy/Universal Republic Records, a division of UMG Recordings, Inc."
+    );
+    assert_eq!(
+        album.album_label,
+        "Silent Records/Universal Republic Records"
+    );
+    assert_eq!(album.album_vanity_id, "410698/Gangnam-Style-Single");
+    assert!(
+        album.updated_time
+            > chrono::Utc.from_utc_datetime(&chrono::NaiveDateTime::new(
+                chrono::NaiveDate::from_ymd(2022, 6, 3),
+                chrono::NaiveTime::default(),
+            ))
+    );
+    assert_eq!(
+        album.album_coverart_100x100,
+        "https://s.mxmcdn.net/images-storage/albums/5/3/0/5/4/2/14245035.jpg"
+    );
+    assert_eq!(
+        album.album_coverart_350x350,
+        "https://s.mxmcdn.net/images-storage/albums/5/3/0/5/4/2/14245035_350_350.jpg"
+    );
+    assert_eq!(
+        album.album_coverart_500x500,
+        "https://s.mxmcdn.net/images-storage/albums/5/3/0/5/4/2/14245035_500_500.jpg"
+    );
+}
+
+#[tokio::test]
+async fn by_id_missing() {
+    let err = new_mxm()
+        .album(AlbumId::AlbumId(999999999999))
+        .await
+        .unwrap_err();
+
+    assert!(matches!(err, Error::NotFound));
+}
+
+#[tokio::test]
+async fn artist_albums() {
+    let albums = new_mxm()
+        .artist_albums(ArtistId::ArtistId(1039), None, 10, 1)
+        .await
+        .unwrap();
+
+    assert_eq!(albums.len(), 10);
+}
+
+#[tokio::test]
+async fn artist_albums_missing() {
+    let err = new_mxm()
+        .artist_albums(ArtistId::ArtistId(999999999999), None, 10, 1)
+        .await
+        .unwrap_err();
+
+    assert!(matches!(err, Error::NotFound));
+}
+
+#[tokio::test]
+async fn charts() {
+    let albums = new_mxm().chart_albums("US", 10, 1).await.unwrap();
+
+    assert_eq!(albums.len(), 10);
+}

tests/artist_test.rs

@@ -0,0 +1,150 @@
+use chrono::TimeZone;
+use dotenv::dotenv;
+use musixmatch_inofficial::{models::ArtistId, storage::FileStorage, Error, Musixmatch};
+use rstest::rstest;
+
+#[ctor::ctor]
+fn init() {
+    let _ = dotenv();
+    env_logger::init();
+}
+
+fn new_mxm() -> Musixmatch {
+    Musixmatch::new(
+        &std::env::var("MUSIXMATCH_EMAIL").unwrap(),
+        &std::env::var("MUSIXMATCH_PASSWORD").unwrap(),
+        Some(Box::new(FileStorage::default())),
+    )
+}
+
+#[rstest]
+#[case::id(ArtistId::ArtistId(410698))]
+#[case::musicbrainz(ArtistId::Musicbrainz("f99b7d67-4e63-4678-aa66-4c6ac0f7d24a"))]
+#[tokio::test]
+async fn by_id(#[case] artist_id: ArtistId<'_>) {
+    let artist = new_mxm().artist(artist_id).await.unwrap();
+
+    // dbg!(&artist);
+
+    assert_eq!(artist.artist_id, 410698);
+    assert_eq!(artist.artist_mbid, "f99b7d67-4e63-4678-aa66-4c6ac0f7d24a");
+    assert_eq!(artist.artist_name, "Psy");
+    assert_eq!(
+        artist.artist_name_translation_list[0]
+            .artist_name_translation
+            .language,
+        "EN"
+    );
+    assert_eq!(
+        artist.artist_name_translation_list[0]
+            .artist_name_translation
+            .translation,
+        "PSY"
+    );
+    assert_eq!(
+        artist.artist_name_translation_list[1]
+            .artist_name_translation
+            .language,
+        "KO"
+    );
+    assert_eq!(
+        artist.artist_name_translation_list[1]
+            .artist_name_translation
+            .translation,
+        "싸이"
+    );
+    assert_eq!(artist.artist_country, "KR");
+    assert!(artist.artist_rating > 50);
+    let first_genre = &artist.primary_genres.music_genre_list[0].music_genre;
+    assert_eq!(first_genre.music_genre_id, 14);
+    assert_eq!(first_genre.music_genre_parent_id, 34);
+    assert_eq!(first_genre.music_genre_name, "Pop");
+    assert_eq!(first_genre.music_genre_name_extended, "Pop");
+    assert_eq!(first_genre.music_genre_vanity.as_ref().unwrap(), "Pop");
+    assert_eq!(artist.artist_twitter_url, "https://twitter.com/psy_oppa");
+    assert_eq!(
+        artist.artist_facebook_url,
+        "https://www.facebook.com/officialpsy"
+    );
+    assert_eq!(artist.artist_vanity_id, "410698");
+    assert!(
+        artist.updated_time
+            > chrono::Utc.from_utc_datetime(&chrono::NaiveDateTime::new(
+                chrono::NaiveDate::from_ymd(2016, 6, 30),
+                chrono::NaiveTime::default(),
+            ))
+    );
+    assert_eq!(artist.begin_date_year, "1977");
+    assert_eq!(artist.begin_date, "1977-12-31");
+    assert_eq!(artist.end_date_year, "");
+    assert_eq!(artist.end_date, "0000-00-00");
+}
+
+#[tokio::test]
+async fn by_id_missing() {
+    let err = new_mxm()
+        .artist(ArtistId::ArtistId(999999999999))
+        .await
+        .unwrap_err();
+
+    assert!(matches!(err, Error::NotFound));
+}
+
+#[tokio::test]
+async fn related() {
+    let artists = new_mxm()
+        .artist_related(ArtistId::ArtistId(26485840), 10, 1)
+        .await
+        .unwrap();
+
+    assert_eq!(artists.len(), 10);
+}
+
+#[tokio::test]
+async fn related_missing() {
+    let err = new_mxm()
+        .artist_related(ArtistId::ArtistId(999999999999), 10, 1)
+        .await
+        .unwrap_err();
+
+    assert!(matches!(err, Error::NotFound));
+}
+
+#[tokio::test]
+async fn search() {
+    let artists = new_mxm().artist_search("psy", 5, 1).await.unwrap();
+
+    assert_eq!(artists.len(), 5);
+
+    let artist = &artists[0];
+    assert_eq!(artist.artist_id, 410698);
+    assert_eq!(artist.artist_name, "Psy");
+}
+
+#[tokio::test]
+async fn search_empty() {
+    let artists = new_mxm()
+        .artist_search(
+            "Rindfleischettikettierungsüberwachungsaufgabenübertragungsgesetz",
+            5,
+            1,
+        )
+        .await
+        .unwrap();
+
+    assert_eq!(artists.len(), 0);
+}
+
+#[tokio::test]
+async fn charts() {
+    let artists = new_mxm().chart_artists("US", 10, 1).await.unwrap();
+
+    assert_eq!(artists.len(), 10);
+}
+
+#[tokio::test]
+async fn charts_no_country() {
+    let artists = new_mxm().chart_artists("XY", 10, 1).await.unwrap();
+
+    assert_eq!(artists.len(), 10);
+}

tests/lyrics_test.rs

@@ -0,0 +1,102 @@
+use chrono::TimeZone;
+use dotenv::dotenv;
+use musixmatch_inofficial::{models::TrackId, storage::FileStorage, Error, Musixmatch};
+use rstest::rstest;
+
+#[ctor::ctor]
+fn init() {
+    let _ = dotenv();
+    env_logger::init();
+}
+
+fn new_mxm() -> Musixmatch {
+    Musixmatch::new(
+        &std::env::var("MUSIXMATCH_EMAIL").unwrap(),
+        &std::env::var("MUSIXMATCH_PASSWORD").unwrap(),
+        Some(Box::new(FileStorage::default())),
+    )
+}
+
+#[tokio::test]
+async fn from_match() {
+    let lyrics = new_mxm().matcher_lyrics("Shine", "Spektrem").await.unwrap();
+
+    // dbg!(&lyrics);
+
+    assert_eq!(lyrics.lyrics_id, 25947036);
+    assert!(!lyrics.instrumental);
+    assert!(!lyrics.explicit);
+    assert!(lyrics
+        .lyrics_body
+        .starts_with("Eyes, in the sky, gazing far into the night\n"));
+    assert_eq!(lyrics.lyrics_language, "en");
+    assert_eq!(lyrics.lyrics_language_description, "English");
+    assert!(lyrics.lyrics_copyright.contains("Kim Jeffeson"));
+    assert!(
+        lyrics.updated_time
+            > chrono::Utc.from_utc_datetime(&chrono::NaiveDateTime::new(
+                chrono::NaiveDate::from_ymd(2021, 6, 30),
+                chrono::NaiveTime::default(),
+            ))
+    );
+}
+
+#[rstest]
+#[case::trackid(TrackId::TrackId(205688271))]
+#[case::commontrack(TrackId::Commontrack(118480583))]
+#[case::vanity(TrackId::CommontrackVanity("aespa/Black-Mamba"))]
+#[case::isrc(TrackId::Isrc("KRA302000590"))]
+#[case::spotify(TrackId::Spotify("1t2qYCAjUAoGfeFeoBlK51"))]
+#[tokio::test]
+async fn from_id(#[case] track_id: TrackId<'_>) {
+    let lyrics = new_mxm().track_lyrics(track_id).await.unwrap();
+
+    // dbg!(&lyrics);
+
+    assert_eq!(lyrics.lyrics_id, 29401691);
+    assert_eq!(lyrics.lyrics_language, "ko");
+    assert_eq!(lyrics.lyrics_language_description, "Korean");
+    assert!(lyrics.lyrics_copyright.contains("Michael Fonseca"));
+    assert!(
+        lyrics.updated_time
+            > chrono::Utc.from_utc_datetime(&chrono::NaiveDateTime::new(
+                chrono::NaiveDate::from_ymd(2022, 8, 27),
+                chrono::NaiveTime::default(),
+            ))
+    );
+}
+
+/// This track has no lyrics
+#[tokio::test]
+async fn instrumental() {
+    let lyrics = new_mxm()
+        .matcher_lyrics("drivers license", "Bobby G")
+        .await
+        .unwrap();
+
+    assert_eq!(lyrics.lyrics_id, 25891609);
+    assert!(lyrics.instrumental);
+    assert!(!lyrics.explicit);
+    assert_eq!(lyrics.lyrics_body, "");
+    assert_eq!(lyrics.lyrics_language, "");
+    assert_eq!(lyrics.lyrics_language_description, "");
+    assert_eq!(lyrics.lyrics_copyright, "");
+    assert!(
+        lyrics.updated_time
+            > chrono::Utc.from_utc_datetime(&chrono::NaiveDateTime::new(
+                chrono::NaiveDate::from_ymd(2021, 6, 21),
+                chrono::NaiveTime::default(),
+            ))
+    );
+}
+
+/// This track has no lyrics
+#[tokio::test]
+async fn missing() {
+    let err = new_mxm()
+        .track_lyrics(TrackId::Spotify("674JwwTP7xCje81T0DRrLn"))
+        .await
+        .unwrap_err();
+
+    assert!(matches!(err, Error::NotFound));
+}

tests/subtitle_test.rs

@@ -37,8 +37,8 @@ async fn from_match() {
     // dbg!(&subtitle);
 
     assert_eq!(subtitle.subtitle_id, 35340319);
-    assert_eq!(subtitle.subtitle_language.unwrap(), "en");
-    assert_eq!(subtitle.subtitle_language_description.unwrap(), "English");
+    assert_eq!(subtitle.subtitle_language, "en");
+    assert_eq!(subtitle.subtitle_language_description, "English");
     assert!(subtitle.lyrics_copyright.contains("Kim Jeffeson"));
     assert_eq!(subtitle.subtitle_length, 316);
     assert!(
@@ -66,8 +66,8 @@ async fn from_id(#[case] track_id: TrackId<'_>) {
     // dbg!(&subtitle);
 
     assert_eq!(subtitle.subtitle_id, 36476905);
-    assert_eq!(subtitle.subtitle_language.unwrap(), "ko");
-    assert_eq!(subtitle.subtitle_language_description.unwrap(), "Korean");
+    assert_eq!(subtitle.subtitle_language, "ko");
+    assert_eq!(subtitle.subtitle_language_description, "Korean");
     assert!(subtitle.lyrics_copyright.contains("Michael Fonseca"));
     assert_eq!(subtitle.subtitle_length, 175);
     assert!(
@@ -95,3 +95,35 @@ async fn instrumental() {
 
     assert!(matches!(err, Error::NotFound));
 }
+
+/// This track has not been synced
+#[tokio::test]
+async fn unsynced() {
+    let err = new_mxm()
+        .track_subtitle(
+            TrackId::Spotify("6oaWIABGL7eeiMILEDyGX1"),
+            SubtitleFormat::Json,
+            Some(213.0),
+            Some(1.0),
+        )
+        .await
+        .unwrap_err();
+
+    assert!(matches!(err, Error::NotFound));
+}
+
+/// Try to get subtitles with wrong length parameter
+#[tokio::test]
+async fn wrong_length() {
+    let err = new_mxm()
+        .track_subtitle(
+            TrackId::Commontrack(118480583),
+            SubtitleFormat::Json,
+            Some(200.0),
+            Some(1.0),
+        )
+        .await
+        .unwrap_err();
+
+    assert!(matches!(err, Error::NotFound));
+}

tests/track_test.rs

@@ -0,0 +1,458 @@
+use chrono::{Datelike, TimeZone};
+use dotenv::dotenv;
+use musixmatch_inofficial::{
+    models::{AlbumId, ChartName, SortOrder, TrackId},
+    storage::FileStorage,
+    Error, Musixmatch,
+};
+use rstest::rstest;
+
+#[ctor::ctor]
+fn init() {
+    let _ = dotenv();
+    env_logger::init();
+}
+
+fn new_mxm() -> Musixmatch {
+    Musixmatch::new(
+        &std::env::var("MUSIXMATCH_EMAIL").unwrap(),
+        &std::env::var("MUSIXMATCH_PASSWORD").unwrap(),
+        Some(Box::new(FileStorage::default())),
+    )
+}
+
+#[rstest]
+#[case::no_translation(false, false)]
+#[case::translation_2c(true, false)]
+#[case::translation_3c(true, true)]
+#[tokio::test]
+async fn from_match(#[case] translation_status: bool, #[case] lang_3c: bool) {
+    let track = new_mxm()
+        .matcher_track("Gangnam Style", "PSY", "", translation_status, lang_3c)
+        .await
+        .unwrap();
+
+    dbg!(&track);
+
+    assert_eq!(track.track_id, 19737449);
+    assert_eq!(track.track_mbid, "882ce25d-51b9-4fe5-bbdf-16e661df0822");
+    assert_eq!(track.track_isrc, "USUM71210283");
+    assert_eq!(
+        track.commontrack_isrcs,
+        vec![vec![
+            "USUM71210283",
+            "USHM91235871",
+            "KRA341205652",
+            "DEN061202418"
+        ]]
+    );
+    assert_eq!(track.track_spotify_id, "1PKnaWkakd5CBjNv8NyaSK");
+    assert_eq!(
+        track.commontrack_spotify_ids,
+        vec![
+            "1PKnaWkakd5CBjNv8NyaSK",
+            "0TN8agMRmMu9oh2UbUbmMr",
+            "4htXSyLAH1wcHuLA5PKHSk",
+            "1d6RiDRVLe2RS5N3faTm4A",
+            "3KfAWiIGR5jaihyB7cMZtg",
+            "291iUZHZVkDUTs6rHXJ1bx",
+            "3HtU8IlHuHbL37fOB60sQ1",
+        ]
+    );
+    assert_eq!(
+        track.track_xboxmusic_id,
+        "music.7B42BF07-0100-11DB-89CA-0019B92A3933"
+    );
+    assert_eq!(track.track_name, "Gangnam Style");
+    assert!(track.track_rating > 50);
+    assert_eq!(track.commontrack_id, 86989384);
+    assert!(!track.instrumental);
+    assert!(track.explicit);
+    assert!(track.has_subtitles);
+    assert!(track.has_track_structure);
+    assert!(track.num_favourite > 140);
+    assert_eq!(track.lyrics_id, 29727716);
+    assert_eq!(track.subtitle_id, 36671981);
+    assert_eq!(track.album_id, 14323438);
+    assert_eq!(track.album_name, "Gangnam Style - Single");
+    assert_eq!(track.artist_id, 410698);
+    assert_eq!(track.artist_mbid, "f99b7d67-4e63-4678-aa66-4c6ac0f7d24a");
+    assert_eq!(track.artist_name, "Psy");
+    assert_eq!(
+        track.album_coverart_100x100,
+        "https://s.mxmcdn.net/images-storage/albums/5/3/0/5/4/2/14245035.jpg"
+    );
+    assert_eq!(
+        track.album_coverart_350x350,
+        "https://s.mxmcdn.net/images-storage/albums/5/3/0/5/4/2/14245035_350_350.jpg"
+    );
+    assert_eq!(
+        track.album_coverart_500x500,
+        "https://s.mxmcdn.net/images-storage/albums/5/3/0/5/4/2/14245035_500_500.jpg"
+    );
+    assert_eq!(track.commontrack_vanity_id, "410698/gangnam-style");
+    let first_release = track.first_release_date.unwrap();
+    assert_eq!(first_release.day(), 1);
+    assert_eq!(first_release.month(), 1);
+    assert_eq!(first_release.year(), 2012);
+    assert!(
+        track.updated_time
+            > chrono::Utc.from_utc_datetime(&chrono::NaiveDateTime::new(
+                chrono::NaiveDate::from_ymd(2022, 9, 25),
+                chrono::NaiveTime::default(),
+            ))
+    );
+
+    let first_pri_genre = &track.primary_genres.music_genre_list[0].music_genre;
+    assert_eq!(first_pri_genre.music_genre_id, 14);
+    assert_eq!(first_pri_genre.music_genre_parent_id, 34);
+    assert_eq!(first_pri_genre.music_genre_name, "Pop");
+    assert_eq!(first_pri_genre.music_genre_name_extended, "Pop");
+    assert_eq!(first_pri_genre.music_genre_vanity.as_ref().unwrap(), "Pop");
+
+    let first_sec_genre = &track.secondary_genres.music_genre_list[0].music_genre;
+    assert_eq!(first_sec_genre.music_genre_id, 51);
+    assert_eq!(first_sec_genre.music_genre_parent_id, 34);
+    assert_eq!(first_sec_genre.music_genre_name, "K-Pop");
+    assert_eq!(first_sec_genre.music_genre_name_extended, "K-Pop");
+    assert_eq!(
+        first_sec_genre.music_genre_vanity.as_ref().unwrap(),
+        "K-Pop"
+    );
+
+    if translation_status {
+        let first_tstatus = &track.track_lyrics_translation_status[0];
+        if lang_3c {
+            assert_eq!(first_tstatus.from, "kor");
+        } else {
+            assert_eq!(first_tstatus.from, "ko");
+        }
+        assert!(first_tstatus.perc >= 0.0 && first_tstatus.perc <= 1.0);
+    } else {
+        assert!(track.track_lyrics_translation_status.is_empty())
+    }
+}
+
+#[rstest]
+#[case::trackid(TrackId::TrackId(205688271))]
+#[case::commontrack(TrackId::Commontrack(118480583))]
+#[case::vanity(TrackId::CommontrackVanity("aespa/Black-Mamba"))]
+#[case::isrc(TrackId::Isrc("KRA302000590"))]
+#[case::spotify(TrackId::Spotify("1t2qYCAjUAoGfeFeoBlK51"))]
+#[tokio::test]
+async fn from_id(#[case] track_id: TrackId<'_>) {
+    let track = new_mxm().track(track_id, true, false).await.unwrap();
+
+    // dbg!(&track);
+
+    assert_eq!(track.track_id, 205688271);
+    assert_eq!(track.track_isrc, "KRA302000590");
+    assert_eq!(track.track_spotify_id, "1t2qYCAjUAoGfeFeoBlK51");
+    assert_eq!(track.track_name, "Black Mamba");
+    assert!(track.track_rating > 50);
+    assert_eq!(track.track_length, 175);
+    assert!(!track.explicit);
+    assert!(track.has_lyrics);
+    assert!(track.has_subtitles);
+    assert!(track.has_richsync);
+    assert!(track.num_favourite > 200);
+    assert_eq!(track.lyrics_id, 29401691);
+    assert_eq!(track.subtitle_id, 36476905);
+    assert_eq!(track.album_id, 41035954);
+    assert_eq!(track.album_name, "Black Mamba - Single");
+    assert_eq!(track.artist_id, 46970441);
+    assert_eq!(track.artist_name, "aespa");
+    assert_eq!(
+        track.album_coverart_100x100,
+        "https://s.mxmcdn.net/images-storage/albums5/2/7/7/6/5/1/52156772.jpg"
+    );
+    assert_eq!(
+        track.album_coverart_350x350,
+        "https://s.mxmcdn.net/images-storage/albums5/2/7/7/6/5/1/52156772_350_350.jpg"
+    );
+    assert_eq!(
+        track.album_coverart_500x500,
+        "https://s.mxmcdn.net/images-storage/albums5/2/7/7/6/5/1/52156772_500_500.jpg"
+    );
+    assert_eq!(track.commontrack_vanity_id, "aespa/Black-Mamba");
+
+    let release_date = track.first_release_date.unwrap();
+    assert_eq!(release_date.day(), 17);
+    assert_eq!(release_date.month(), 11);
+    assert_eq!(release_date.year(), 2020);
+    assert!(
+        track.updated_time
+            > chrono::Utc.from_utc_datetime(&chrono::NaiveDateTime::new(
+                chrono::NaiveDate::from_ymd(2022, 8, 27),
+                chrono::NaiveTime::default(),
+            ))
+    );
+
+    let first_tstatus = &track.track_lyrics_translation_status[0];
+    assert_eq!(first_tstatus.from, "ko");
+    assert!(first_tstatus.perc >= 0.0 && first_tstatus.perc <= 1.0);
+}
+
+#[rstest]
+#[case::no_translation(false, false)]
+#[case::translation_2c(true, false)]
+#[case::translation_3c(true, true)]
+#[tokio::test]
+async fn from_id_translations(#[case] translation_status: bool, #[case] lang_3c: bool) {
+    let track = new_mxm()
+        .track(TrackId::TrackId(19737449), translation_status, lang_3c)
+        .await
+        .unwrap();
+
+    dbg!(&track);
+
+    assert_eq!(track.track_id, 19737449);
+    assert_eq!(track.track_mbid, "882ce25d-51b9-4fe5-bbdf-16e661df0822");
+    assert_eq!(track.track_isrc, "USUM71210283");
+    assert_eq!(
+        track.commontrack_isrcs,
+        vec![vec![
+            "USUM71210283",
+            "USHM91235871",
+            "KRA341205652",
+            "DEN061202418"
+        ]]
+    );
+    assert_eq!(track.track_spotify_id, "1PKnaWkakd5CBjNv8NyaSK");
+    assert_eq!(
+        track.commontrack_spotify_ids,
+        vec![
+            "1PKnaWkakd5CBjNv8NyaSK",
+            "0TN8agMRmMu9oh2UbUbmMr",
+            "4htXSyLAH1wcHuLA5PKHSk",
+            "1d6RiDRVLe2RS5N3faTm4A",
+            "3KfAWiIGR5jaihyB7cMZtg",
+            "291iUZHZVkDUTs6rHXJ1bx",
+            "3HtU8IlHuHbL37fOB60sQ1",
+        ]
+    );
+    assert_eq!(
+        track.track_xboxmusic_id,
+        "music.7B42BF07-0100-11DB-89CA-0019B92A3933"
+    );
+    assert_eq!(track.track_name, "Gangnam Style");
+    assert!(track.track_rating > 50);
+    assert_eq!(track.commontrack_id, 86989384);
+    assert!(!track.instrumental);
+    assert!(track.explicit);
+    assert!(track.has_subtitles);
+    assert!(track.has_track_structure);
+    assert!(track.num_favourite > 140);
+    assert_eq!(track.lyrics_id, 29727716);
+    assert_eq!(track.subtitle_id, 36671981);
+    assert_eq!(track.album_id, 14323438);
+    assert_eq!(track.album_name, "Gangnam Style - Single");
+    assert_eq!(track.artist_id, 410698);
+    assert_eq!(track.artist_mbid, "f99b7d67-4e63-4678-aa66-4c6ac0f7d24a");
+    assert_eq!(track.artist_name, "Psy");
+    assert_eq!(
+        track.album_coverart_100x100,
+        "https://s.mxmcdn.net/images-storage/albums/5/3/0/5/4/2/14245035.jpg"
+    );
+    assert_eq!(
+        track.album_coverart_350x350,
+        "https://s.mxmcdn.net/images-storage/albums/5/3/0/5/4/2/14245035_350_350.jpg"
+    );
+    assert_eq!(
+        track.album_coverart_500x500,
+        "https://s.mxmcdn.net/images-storage/albums/5/3/0/5/4/2/14245035_500_500.jpg"
+    );
+    assert_eq!(track.commontrack_vanity_id, "410698/gangnam-style");
+
+    let first_release = track.first_release_date.unwrap();
+    assert_eq!(first_release.day(), 1);
+    assert_eq!(first_release.month(), 1);
+    assert_eq!(first_release.year(), 2012);
+    assert!(
+        track.updated_time
+            > chrono::Utc.from_utc_datetime(&chrono::NaiveDateTime::new(
+                chrono::NaiveDate::from_ymd(2022, 9, 25),
+                chrono::NaiveTime::default(),
+            ))
+    );
+
+    let first_pri_genre = &track.primary_genres.music_genre_list[0].music_genre;
+    assert_eq!(first_pri_genre.music_genre_id, 14);
+    assert_eq!(first_pri_genre.music_genre_parent_id, 34);
+    assert_eq!(first_pri_genre.music_genre_name, "Pop");
+    assert_eq!(first_pri_genre.music_genre_name_extended, "Pop");
+    assert_eq!(first_pri_genre.music_genre_vanity.as_ref().unwrap(), "Pop");
+
+    let first_sec_genre = &track.secondary_genres.music_genre_list[0].music_genre;
+    assert_eq!(first_sec_genre.music_genre_id, 51);
+    assert_eq!(first_sec_genre.music_genre_parent_id, 34);
+    assert_eq!(first_sec_genre.music_genre_name, "K-Pop");
+    assert_eq!(first_sec_genre.music_genre_name_extended, "K-Pop");
+    assert_eq!(
+        first_sec_genre.music_genre_vanity.as_ref().unwrap(),
+        "K-Pop"
+    );
+
+    if translation_status {
+        let first_tstatus = &track.track_lyrics_translation_status[0];
+        if lang_3c {
+            assert_eq!(first_tstatus.from, "kor");
+        } else {
+            assert_eq!(first_tstatus.from, "ko");
+        }
+        assert!(first_tstatus.perc >= 0.0 && first_tstatus.perc <= 1.0);
+    } else {
+        assert!(track.track_lyrics_translation_status.is_empty())
+    }
+}
+
+#[tokio::test]
+async fn from_id_missing() {
+    let err = new_mxm()
+        .track(TrackId::TrackId(999999999999), false, false)
+        .await
+        .unwrap_err();
+
+    assert!(matches!(err, Error::NotFound));
+}
+
+#[tokio::test]
+async fn album_tracks() {
+    let tracks = new_mxm()
+        .album_tracks(AlbumId::AlbumId(17118624), true, 20, 1)
+        .await
+        .unwrap();
+
+    // dbg!(&tracks);
+
+    let track_names = tracks
+        .iter()
+        .map(|t| t.track_name.to_owned())
+        .collect::<Vec<_>>();
+
+    assert_eq!(
+        track_names,
+        vec![
+            "Gäa",
+            "Vergiss mein nicht",
+            "Orome",
+            "Falke flieg",
+            "Minne",
+            "Das Lied der Ahnen",
+            "Hörst du den Wind",
+            "Nan Úye",
+            "Faolan",
+            "Hymne der Nacht",
+            "Avalon",
+            "Tolo Nan",
+            "Oonagh",
+        ]
+    );
+
+    tracks.iter().for_each(|t| {
+        assert!(t.has_lyrics);
+        assert!(t.has_subtitles);
+    });
+}
+
+#[tokio::test]
+async fn album_missing() {
+    let err = new_mxm()
+        .album_tracks(AlbumId::AlbumId(999999999999), false, 20, 1)
+        .await
+        .unwrap_err();
+
+    assert!(matches!(err, Error::NotFound));
+}
+
+#[rstest]
+#[case::top(ChartName::Top)]
+#[case::hot(ChartName::Hot)]
+#[tokio::test]
+async fn charts(#[case] chart_name: ChartName) {
+    let tracks = new_mxm()
+        .chart_tracks("US", chart_name, true, 20, 1)
+        .await
+        .unwrap();
+
+    assert_eq!(tracks.len(), 20);
+}
+
+#[tokio::test]
+async fn search() {
+    let tracks = new_mxm()
+        .track_search()
+        .q_artist("Lena")
+        .q_track("Satellite")
+        .s_track_rating(SortOrder::Desc)
+        .send(1, 0)
+        .await
+        .unwrap();
+
+    dbg!(&tracks);
+
+    assert_eq!(tracks.len(), 1);
+
+    let track = &tracks[0];
+    assert_eq!(track.commontrack_id, 12426476);
+    assert_eq!(track.track_name, "Satellite");
+    assert_eq!(track.artist_name, "Lena");
+}
+
+#[tokio::test]
+async fn search_lyrics() {
+    let tracks = new_mxm()
+        .track_search()
+        .q_lyrics("not a thing that i would change")
+        .s_track_rating(SortOrder::Desc)
+        .send(10, 1)
+        .await
+        .unwrap();
+
+    assert_eq!(tracks.len(), 10);
+
+    let track = &tracks[0];
+    assert_eq!(track.track_name, "Just the Way You Are");
+    assert_eq!(track.artist_name, "Bruno Mars");
+}
+
+#[tokio::test]
+async fn search_empty() {
+    let artists = new_mxm()
+        .track_search()
+        .q("Rindfleischettikettierungsüberwachungsaufgabenübertragungsgesetz")
+        .send(10, 1)
+        .await
+        .unwrap();
+
+    assert_eq!(artists.len(), 0);
+}
+
+#[tokio::test]
+async fn genres() {
+    let genres = new_mxm().genres().await.unwrap();
+    assert!(genres.len() > 360);
+}
+
+#[tokio::test]
+async fn snippet() {
+    let snippet = new_mxm()
+        .track_snippet(TrackId::Commontrack(8874280))
+        .await
+        .unwrap();
+
+    assert_eq!(snippet.snippet_id, 23036767);
+    assert_eq!(snippet.snippet_language, "en");
+    assert!(!snippet.instrumental);
+    assert!(
+        snippet.updated_time
+            > chrono::Utc.from_utc_datetime(&chrono::NaiveDateTime::new(
+                chrono::NaiveDate::from_ymd(2022, 8, 29),
+                chrono::NaiveTime::default(),
+            ))
+    );
+    assert_eq!(
+        snippet.snippet_body,
+        "There's not a thing that I would change"
+    );
+}