// 跨平台入口: 桌面从这里走, Android 走 mobile_entry_point 宏
// 启动流程:
//   1) Windows 外壳能力注册 (单实例 / 自启动 / 托盘 / 吸附悬浮球, 见 src/shell)
//   2) 初始化 tauri-plugin-hotswap (前端 OTA 升级插件)
//      - 必须在 build 之前调用, 插件会替换 tauri::generate_context! 的 asset provider,
//        后续可被 tauri::Builder 消费
//   3) 业务初始化

#[cfg(all(desktop, target_os = "windows"))]
mod shell;

#[cfg_attr(mobile, tauri::mobile_entry_point)]
pub fn run() {
    // 生成 context, 交给 hotswap 包装 (替换 Assets provider, 让 tauri://localhost 资源
    // 优先从本地覆盖目录读, 走不到时回退到内置 dist)
    let context = tauri::generate_context!();
    let (hotswap, context) = tauri_plugin_hotswap::init(context)
        .expect("failed to initialize tauri-plugin-hotswap");

    let mut builder = tauri::Builder::default()
        .invoke_handler(tauri::generate_handler![
            dock_hover_start,
            dock_hover_end,
            dock_click,
            dock_drag_start,
            dock_drag_move,
            dock_drag_end,
        ])
        .on_window_event(on_window_event);

    #[cfg(all(desktop, target_os = "windows"))]
    {
        builder = builder
            // 单实例必须最先注册 (W-TRY-07): 二次启动唤回已有实例
            .plugin(tauri_plugin_single_instance::init(|app, _argv, _cwd| {
                shell::activate_primary(app);
            }))
            .plugin(tauri_plugin_autostart::init(
                tauri_plugin_autostart::MacosLauncher::LaunchAgent,
                Some(vec!["--autostart"]),
            ))
            .setup(|app| shell::setup(app));
    }

    builder
        .plugin(hotswap)
        .run(context)
        .expect("error while running iBoard");
}

fn on_window_event(window: &tauri::Window, event: &tauri::WindowEvent) {
    #[cfg(all(desktop, target_os = "windows"))]
    shell::on_window_event(window, event);
    #[cfg(not(all(desktop, target_os = "windows")))]
    {
        let _ = (window, event);
    }
}

// —— 悬浮球 IPC (dock.html → Rust); 非 Windows 桌面平台为 no-op ——

#[tauri::command]
fn dock_hover_start(app: tauri::AppHandle) {
    #[cfg(all(desktop, target_os = "windows"))]
    shell::dock_hover_start(&app);
    #[cfg(not(all(desktop, target_os = "windows")))]
    let _ = app;
}

#[tauri::command]
fn dock_hover_end(app: tauri::AppHandle) {
    #[cfg(all(desktop, target_os = "windows"))]
    shell::dock_hover_end(&app);
    #[cfg(not(all(desktop, target_os = "windows")))]
    let _ = app;
}

#[tauri::command]
fn dock_click(app: tauri::AppHandle) {
    #[cfg(all(desktop, target_os = "windows"))]
    shell::dock_click(&app);
    #[cfg(not(all(desktop, target_os = "windows")))]
    let _ = app;
}

#[tauri::command]
fn dock_drag_start(app: tauri::AppHandle) {
    #[cfg(all(desktop, target_os = "windows"))]
    shell::dock_drag_start(&app);
    #[cfg(not(all(desktop, target_os = "windows")))]
    let _ = app;
}

#[tauri::command]
fn dock_drag_move(app: tauri::AppHandle, dx: i32, dy: i32) {
    #[cfg(all(desktop, target_os = "windows"))]
    shell::dock_drag_move(&app, dx, dy);
    #[cfg(not(all(desktop, target_os = "windows")))]
    {
        let _ = (app, dx, dy);
    }
}

#[tauri::command]
fn dock_drag_end(app: tauri::AppHandle) {
    #[cfg(all(desktop, target_os = "windows"))]
    shell::dock_drag_end(&app);
    #[cfg(not(all(desktop, target_os = "windows")))]
    let _ = app;
}