feat(app): persist customization settings

src-tauri/src/main.rs

@@ -1,6 +1,8 @@
 use rabby_core::{
-    demo_dashboard, wallet_feature_summary, WalletDashboard, WalletFeatureStatus, Workspace,
+    demo_dashboard, wallet_feature_summary, AppConfig, WalletDashboard, WalletFeatureStatus,
+    Workspace,
 };
+use rabby_runtime::config_store::{ConfigStore, JsonFileConfigStore};
 use rabby_runtime::local_terminal::{LocalCommand, LocalCommandOutput, LocalTerminal};
 use rabby_runtime::wallet_vault::{EncryptedWalletVault, WalletVaultStatus};
 use serde::Serialize;
@@ -75,6 +77,31 @@ fn resolve_vault_path(path: Option<String>) -> PathBuf {
         .unwrap_or_else(|| std::env::temp_dir().join("rabby-demo-wallet-vault.json"))
 }
 
+#[tauri::command]
+fn load_app_config(path: Option<String>) -> Result<AppConfig, String> {
+    let config_path = resolve_config_path(path);
+    if !config_path.exists() {
+        return Ok(AppConfig::default_linux());
+    }
+    JsonFileConfigStore::new(config_path)
+        .load()
+        .map_err(|err| err.to_string())
+}
+
+#[tauri::command]
+fn save_app_config(config: AppConfig, path: Option<String>) -> Result<AppConfig, String> {
+    let config_path = resolve_config_path(path);
+    JsonFileConfigStore::new(config_path)
+        .save(&config)
+        .map_err(|err| err.to_string())?;
+    Ok(config)
+}
+
+fn resolve_config_path(path: Option<String>) -> PathBuf {
+    path.map(PathBuf::from)
+        .unwrap_or_else(|| std::env::temp_dir().join("rabby-app-config.json"))
+}
+
 fn main() {
     tauri::Builder::default()
         .invoke_handler(tauri::generate_handler![
@@ -83,7 +110,9 @@ fn main() {
             wallet_dashboard,
             save_demo_wallet_vault,
             load_wallet_vault,
-            run_local_command
+            run_local_command,
+            load_app_config,
+            save_app_config
         ])
         .run(tauri::generate_context!())
         .expect("failed to run Rabby Tauri application");
@@ -114,4 +143,30 @@ mod tests {
         assert_eq!(output.exit_code, 0);
         assert_eq!(output.stdout, "tauri-local");
     }
+
+    #[test]
+    fn config_path_has_stable_file_name() {
+        let path = resolve_config_path(None);
+        assert_eq!(
+            path.file_name().and_then(|value| value.to_str()),
+            Some("rabby-app-config.json")
+        );
+    }
+
+    #[test]
+    fn save_and_load_app_config_round_trips_custom_theme() {
+        let unique = std::time::SystemTime::now()
+            .duration_since(std::time::UNIX_EPOCH)
+            .unwrap()
+            .as_nanos();
+        let path = std::env::temp_dir().join(format!("rabby-tauri-config-{unique}.json"));
+        let mut config = AppConfig::default_linux();
+        config.theme_id = "rabby-light".to_string();
+
+        save_app_config(config.clone(), Some(path.display().to_string())).unwrap();
+        let loaded = load_app_config(Some(path.display().to_string())).unwrap();
+
+        assert_eq!(loaded.theme_id, "rabby-light");
+        assert_eq!(loaded, config);
+    }
 }