use std::sync::atomic::{AtomicBool, Ordering};
use std::sync::Arc;

use tauri::{
    menu::{Menu, MenuItem, PredefinedMenuItem},
    tray::{MouseButton, MouseButtonState, TrayIconBuilder, TrayIconEvent},
    Emitter, Manager,
};

fn show_main_window(app: &tauri::AppHandle) {
    if let Some(window) = app.get_webview_window("main") {
        let _ = window.show();
        let _ = window.unminimize();
        let _ = window.set_focus();
    }
}

#[cfg_attr(mobile, tauri::mobile_entry_point)]
pub fn run() {
    let is_quitting = Arc::new(AtomicBool::new(false));

    tauri::Builder::default()
        .plugin(tauri_plugin_updater::Builder::new().build())
        .plugin(tauri_plugin_process::init())
        .on_window_event({
            let is_quitting = is_quitting.clone();
            move |window, event| {
                if let tauri::WindowEvent::CloseRequested { api, .. } = event {
                    if !is_quitting.load(Ordering::SeqCst) {
                        api.prevent_close();
                        let _ = window.hide();
                    }
                }
            }
        })
        .setup({
            let is_quitting = is_quitting.clone();
            move |app| {
                if cfg!(debug_assertions) {
                    app.handle().plugin(
                        tauri_plugin_log::Builder::default()
                            .level(log::LevelFilter::Info)
                            .build(),
                    )?;
                }

                let show = MenuItem::with_id(app, "show", "Rapport öffnen", true, None::<&str>)?;
                let dashboard = MenuItem::with_id(app, "nav:dashboard", "Dashboard", true, None::<&str>)?;
                let time = MenuItem::with_id(app, "nav:time", "Zeiterfassung", true, None::<&str>)?;
                let projects = MenuItem::with_id(app, "nav:projects", "Projekte", true, None::<&str>)?;
                let accounting = MenuItem::with_id(app, "nav:buchhaltung", "Buchhaltung", true, None::<&str>)?;
                let settings = MenuItem::with_id(app, "nav:settings", "Einstellungen", true, None::<&str>)?;
                let sep1 = PredefinedMenuItem::separator(app)?;
                let sep2 = PredefinedMenuItem::separator(app)?;
                let quit = MenuItem::with_id(app, "quit", "Beenden", true, Some("Cmd+Q"))?;

                let menu = Menu::with_items(
                    app,
                    &[&show, &sep1, &dashboard, &time, &projects, &accounting, &settings, &sep2, &quit],
                )?;

                let is_quitting_menu = is_quitting.clone();
                let _tray = TrayIconBuilder::with_id("main")
                    .icon(app.default_window_icon().unwrap().clone())
                    .icon_as_template(true)
                    .menu(&menu)
                    .show_menu_on_left_click(false)
                    .on_menu_event(move |app, event| match event.id.as_ref() {
                        "show" => show_main_window(app),
                        "quit" => {
                            is_quitting_menu.store(true, Ordering::SeqCst);
                            app.exit(0);
                        }
                        id if id.starts_with("nav:") => {
                            show_main_window(app);
                            let view = &id["nav:".len()..];
                            let _ = app.emit("rapport:navigate", view.to_string());
                        }
                        _ => {}
                    })
                    .on_tray_icon_event(|tray, event| {
                        if let TrayIconEvent::Click {
                            button: MouseButton::Left,
                            button_state: MouseButtonState::Up,
                            ..
                        } = event
                        {
                            show_main_window(tray.app_handle());
                        }
                    })
                    .build(app)?;

                Ok(())
            }
        })
        .build(tauri::generate_context!())
        .expect("error while building tauri application")
        .run(move |_app, event| {
            if let tauri::RunEvent::ExitRequested { .. } = event {
                is_quitting.store(true, Ordering::SeqCst);
            }
        });
}