From e4e7530902860763ff90bdc911a69f0ddb54f523 Mon Sep 17 00:00:00 2001
From: h7x4 <h7x4@nani.wtf>
Date: Fri, 21 Nov 2025 18:36:18 +0900
Subject: [PATCH] common/types: implement serialization helpers for `Tag`

---
 src/common/types/tag.rs | 82 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 82 insertions(+)

diff --git a/src/common/types/tag.rs b/src/common/types/tag.rs
index f88406b7..9d65db79 100644
--- a/src/common/types/tag.rs
+++ b/src/common/types/tag.rs
@@ -118,4 +118,86 @@ impl Tag {
             other => Self::Other(other.to_string(), value),
         }
     }
+
+    pub fn key(&self) -> &str {
+        match self {
+            Tag::Artist(_) => "Artist",
+            Tag::ArtistSort(_) => "ArtistSort",
+            Tag::Album(_) => "Album",
+            Tag::AlbumSort(_) => "AlbumSort",
+            Tag::AlbumArtist(_) => "AlbumArtist",
+            Tag::AlbumArtistSort(_) => "AlbumArtistSort",
+            Tag::Title(_) => "Title",
+            Tag::TitleSort(_) => "TitleSort",
+            Tag::Track(_) => "Track",
+            Tag::Name(_) => "Name",
+            Tag::Genre(_) => "Genre",
+            Tag::Mood(_) => "Mood",
+            Tag::Date(_) => "Date",
+            Tag::OriginalDate(_) => "OriginalDate",
+            Tag::Composer(_) => "Composer",
+            Tag::ComposerSort(_) => "ComposerSort",
+            Tag::Performer(_) => "Performer",
+            Tag::Conductor(_) => "Conductor",
+            Tag::Work(_) => "Work",
+            Tag::Ensemble(_) => "Ensemble",
+            Tag::Movement(_) => "Movement",
+            Tag::MovementNumber(_) => "MovementNumber",
+            Tag::ShowMovement(_) => "ShowMovement",
+            Tag::Location(_) => "Location",
+            Tag::Grouping(_) => "Grouping",
+            Tag::Comment(_) => "Comment",
+            Tag::Disc(_) => "Disc",
+            Tag::Label(_) => "Label",
+            Tag::MusicBrainzArtistId(_) => "MusicBrainzArtistId",
+            Tag::MusicBrainzAlbumId(_) => "MusicBrainzAlbumId",
+            Tag::MusicBrainzAlbumArtistId(_) => "MusicBrainzAlbumArtistId",
+            Tag::MusicBrainzTrackId(_) => "MusicBrainzTrackId",
+            Tag::MusicBrainzReleaseGroupId(_) => "MusicBrainzReleaseGroupId",
+            Tag::MusicBrainzReleaseTrackId(_) => "MusicBrainzReleaseTrackId",
+            Tag::MusicBrainzWorkId(_) => "MusicBrainzWorkId",
+            Tag::Other(key, _) => key,
+        }
+    }
+
+    pub fn value(&self) -> &str {
+        match self {
+            Tag::Artist(v)
+            | Tag::ArtistSort(v)
+            | Tag::Album(v)
+            | Tag::AlbumSort(v)
+            | Tag::AlbumArtist(v)
+            | Tag::AlbumArtistSort(v)
+            | Tag::Title(v)
+            | Tag::TitleSort(v)
+            | Tag::Track(v)
+            | Tag::Name(v)
+            | Tag::Genre(v)
+            | Tag::Mood(v)
+            | Tag::Date(v)
+            | Tag::OriginalDate(v)
+            | Tag::Composer(v)
+            | Tag::ComposerSort(v)
+            | Tag::Performer(v)
+            | Tag::Conductor(v)
+            | Tag::Work(v)
+            | Tag::Ensemble(v)
+            | Tag::Movement(v)
+            | Tag::MovementNumber(v)
+            | Tag::ShowMovement(v)
+            | Tag::Location(v)
+            | Tag::Grouping(v)
+            | Tag::Comment(v)
+            | Tag::Disc(v)
+            | Tag::Label(v)
+            | Tag::MusicBrainzArtistId(v)
+            | Tag::MusicBrainzAlbumId(v)
+            | Tag::MusicBrainzAlbumArtistId(v)
+            | Tag::MusicBrainzTrackId(v)
+            | Tag::MusicBrainzReleaseGroupId(v)
+            | Tag::MusicBrainzReleaseTrackId(v)
+            | Tag::MusicBrainzWorkId(v)
+            | Tag::Other(_, v) => v,
+        }
+    }
 }