Added the mb db download. Big upsides and downsides

frontend/src/types.rs

@@ -400,6 +400,8 @@ pub struct AppConfig {
     pub metadata: MetadataConfigFe,
     #[serde(default)]
     pub scheduling: SchedulingConfigFe,
+    #[serde(default)]
+    pub musicbrainz: MusicBrainzConfigFe,
 }
 
 #[derive(Debug, Clone, PartialEq, Serialize, Deserialize, Default)]
@@ -513,3 +515,36 @@ fn default_lyrics_source() -> String {
 fn default_cover_art_source() -> String {
     "coverartarchive".into()
 }
+
+// --- MusicBrainz local DB ---
+
+#[derive(Debug, Clone, PartialEq, Serialize, Deserialize, Default)]
+pub struct MusicBrainzConfigFe {
+    #[serde(default)]
+    pub local_db_path: Option<String>,
+    #[serde(default)]
+    pub auto_update: bool,
+}
+
+#[derive(Debug, Clone, PartialEq, Deserialize)]
+pub struct MbStatus {
+    pub has_local_db: bool,
+    #[serde(default)]
+    pub stats: Option<MbLocalStats>,
+}
+
+#[derive(Debug, Clone, PartialEq, Deserialize)]
+pub struct MbLocalStats {
+    #[serde(default)]
+    pub artists: u64,
+    #[serde(default)]
+    pub release_groups: u64,
+    #[serde(default)]
+    pub releases: u64,
+    #[serde(default)]
+    pub recordings: u64,
+    #[serde(default)]
+    pub tracks: u64,
+    #[serde(default)]
+    pub last_import_date: Option<String>,
+}