tauri-plugins-workspace/plugins/store/examples/AppSettingsManager/src-tauri/src/main.rs

// Copyright 2019-2023 Tauri Programme within The Commons Conservancy
// SPDX-License-Identifier: Apache-2.0
// SPDX-License-Identifier: MIT

// Prevents additional console window on Windows in release, DO NOT REMOVE!!
#![cfg_attr(not(debug_assertions), windows_subsystem = "windows")]

use std::time::Duration;

use serde_json::json;
use tauri_plugin_store::StoreExt;

mod app;
use app::settings::AppSettings;

fn main() {
    tauri::Builder::default()
        .plugin(tauri_plugin_store::Builder::new().build())
        .setup(|app| {
            // Init store and load it from disk
            let store = app
                .handle()
                .store_builder("settings.json")
                .auto_save(Duration::from_millis(100))
                .build();

            // If there are no saved settings yet, this will return an error so we ignore the return value.
            let _ = store.load();

            let app_settings = AppSettings::load_from_store(&store);

            match app_settings {
                Ok(app_settings) => {
                    let theme = app_settings.theme;
                    let launch_at_login = app_settings.launch_at_login;

                    println!("theme {theme}");
                    println!("launch_at_login {launch_at_login}");
                    store.set(
                        "appSettings",
                        json!({ "theme": theme, "launchAtLogin": launch_at_login }),
                    );
                }
                Err(err) => {
                    eprintln!("Error loading settings: {err}");
                    // Handle the error case if needed
                    return Err(err); // Convert the error to a Box<dyn Error> and return Err(err) here
                }
            }
            Ok(())
        })
        .run(tauri::generate_context!())
        .expect("error while running tauri application");
}