Get user language from GLib

Cargo.lock

@@ -1050,6 +1050,7 @@ dependencies = [
  "gettext-rs",
  "gstreamer-play",
  "gtk4",
+ "lazy_static",
  "libadwaita",
  "log",
  "mpris-player",

Cargo.toml

@@ -13,6 +13,7 @@ fragile = "2"
 gettext-rs = { version = "0.7", features = ["gettext-system"] }
 gstreamer-play = "0.22"
 gtk = { package = "gtk4", version = "0.7", features = ["v4_12", "blueprint"] }
+lazy_static = "1"
 log = "0.4"
 mpris-player = "0.6"
 once_cell = "1"

src/db/mod.rs

@@ -17,6 +17,8 @@ use diesel::{
 use diesel_migrations::{EmbeddedMigrations, MigrationHarness};
 use serde::{Deserialize, Serialize};
 
+use crate::util;
+
 // This makes the SQL migration scripts accessible from the code.
 const MIGRATIONS: EmbeddedMigrations = diesel_migrations::embed_migrations!();
 
@@ -48,10 +50,7 @@ impl TranslatedString {
     /// generic translation exists (which is a bug in the data), an empty string is
     /// returned and a warning is logged.
     pub fn get(&self) -> &str {
-        // TODO: Get language from locale.
+        match self.0.get(&*util::LANG) {
-        let lang = "generic";
-
-        match self.0.get(lang) {
             Some(s) => s,
             None => match self.0.get("generic") {
                 Some(s) => s,

src/main.rs

@@ -13,6 +13,7 @@ mod recording_tile;
 mod search_entry;
 mod search_tag;
 mod tag_tile;
+mod util;
 mod welcome_page;
 mod window;
 

src/util.rs

@@ -0,0 +1,18 @@
+use gtk::glib;
+use lazy_static::lazy_static;
+
+lazy_static! {
+    /// The user's language code.
+    pub static ref LANG: String = {
+        let lang = match glib::language_names().first() {
+            Some(language_name) => match language_name.split('_').next() {
+                Some(lang) => lang.to_string(),
+                None => "generic".to_string(),
+            },
+            None => "generic".to_string(),
+        };
+        
+        log::info!("Intialized user language to '{lang}'.");
+        lang
+    };
+}