use eframe::egui;
use raw_window_handle::{HasWindowHandle, RawWindowHandle};
use std::borrow::BorrowMut;
use std::sync::Mutex;
use std::sync::{
    atomic::{AtomicBool, Ordering},
    Arc,
};
use tokio::sync::mpsc;
use tray_item::TrayItem;

use crate::server::{ServerMessage, ServerSettings};

pub enum UIMessage {
    ServerHasQuit,
}

pub fn run_ui(
    settings: Arc<Mutex<ServerSettings>>,
    should_run: Arc<Mutex<bool>>,
    tx: mpsc::Sender<ServerMessage>,
    rx: mpsc::Receiver<UIMessage>,
) {
    // Initialize visibility as AtomicBool
    let visible = Arc::new(AtomicBool::new(true));

    let icon = crate::icon::load_app_icon("icon-soundboard");

    let native_options = eframe::NativeOptions {
        viewport: egui::ViewportBuilder::default().with_icon(icon),
        ..Default::default()
    };

    let visible_for_tray = Arc::clone(&visible);

    eframe::run_native(
        "App",
        native_options,
        Box::new(|cc| {
            let window_handle = cc.window_handle().unwrap();
            let window_handle = window_handle.as_raw();
            let mut tray = TrayItem::new(
                "Soundboard",
                tray_item::IconSource::Resource("icon-soundboard"),
            )
            .unwrap();

            if let RawWindowHandle::Win32(handle) = window_handle {
                #[cfg(windows)]
                {
                    use windows::Win32::Foundation::HWND;
                    use windows::Win32::UI::WindowsAndMessaging::{
                        ShowWindow, SW_HIDE, SW_RESTORE,
                    };

                    tray.add_label("Server Control").unwrap();

                    let window_handle = HWND(handle.hwnd.into());
                    tray.add_menu_item("Show/Hide", {
                        //let visible_for_tray = Arc::clone(&visible_for_tray);
                        move || {
                            let is_visible = visible_for_tray.load(Ordering::SeqCst);

                            if is_visible {
                                unsafe {
                                    _ = ShowWindow(window_handle, SW_HIDE);
                                }
                                visible_for_tray.store(false, Ordering::SeqCst);
                            } else {
                                unsafe {
                                    _ = ShowWindow(window_handle, SW_RESTORE);
                                }
                                visible_for_tray.store(true, Ordering::SeqCst);
                            }
                        }
                    })
                    .unwrap();
                }
            } else {
                println!("Unsupported platform for tray icon.");
            }

            let my_tx = tx.clone();
            tray.add_menu_item("Quit", move || {
                my_tx.try_send(ServerMessage::Shutdown).unwrap_or_else(|_| {
                    eprintln!("Failed to send Shutdown message");
                });
                //std::process::exit(0);
            })
            .unwrap();

            let app = NativeApp {
                settings,
                should_run,
                tx,
                rx,
                tray,
            };

            Box::new(app)
        }),
    )
    .expect("Error running UI.");
}

struct NativeApp {
    settings: Arc<Mutex<ServerSettings>>,
    #[allow(dead_code)]
    should_run: Arc<Mutex<bool>>,
    tx: mpsc::Sender<ServerMessage>,
    rx: mpsc::Receiver<UIMessage>,
    #[allow(dead_code)]
    tray: TrayItem,
}

impl eframe::App for NativeApp {
    fn update(&mut self, ctx: &egui::Context, _frame: &mut eframe::Frame) {
        if let Ok(message) = self.rx.try_recv() {
            match message {
                UIMessage::ServerHasQuit => {
                    eprintln!("Server has quit!!!?");
                }
                _ => {}
            }
        }
        egui::CentralPanel::default().show(ctx, |ui| {
            egui::TopBottomPanel::top("top_panel")
                .resizable(true)
                .min_height(32.0)
                .show_inside(ui, |ui| {
                    egui::ScrollArea::vertical().show(ui, |ui| {
                        ui.vertical_centered(|ui| {
                            ui.heading("Soundboard");
                        });
                    });
                });

            egui::SidePanel::left("left_panel")
                .resizable(true)
                .default_width(180.0)
                .width_range(80.0..=220.0)
                .show_inside(ui, |ui| {
                    ui.vertical_centered(|ui| {
                        ui.vertical(|ui| {
                            ui.heading("Menu");
                            if ui.button("Status").clicked() {}
                            if ui.button("Devices").clicked() {}
                            if ui.button("Pages").clicked() {}
                            if ui.button("Server Settings").clicked() {}
                            if ui.button("Sound Settings").clicked() {}
                        });
                    });
                    egui::ScrollArea::vertical().show(ui, |ui| {});
                });

            let mut settings = self.settings.lock().unwrap();

            ui.heading("Server Settings");

            egui::Frame {
                inner_margin: 12.0.into(),
                outer_margin: 24.0.into(),
                rounding: 14.0.into(),
                shadow: egui::epaint::Shadow::NONE,
                fill: egui::Color32::from_rgba_unmultiplied(97, 0, 255, 128),
                stroke: egui::Stroke::new(1.0, egui::Color32::GRAY),
            }
            .show(ui, |ui| {
                ui.label(egui::RichText::new("3311").color(egui::Color32::WHITE));
            });

            ui.horizontal(|ui| {
                ui.label("Port:");
                if ui.text_edit_singleline(&mut settings.port).changed() {}
            });

            if ui.button("Apply").clicked() {
                if self
                    .tx
                    .try_send(ServerMessage::UpdateSettings(settings.clone()))
                    .is_err()
                {
                    eprintln!("Failed to send settings update");
                }
            }

            if ui.button("Interact").clicked() {
                if self.tx.try_send(ServerMessage::Interact).is_err() {
                    eprintln!("Failed to send interaction message");
                }
            }

            if ui.button("Shutdown Server").clicked() {
                if self.tx.try_send(ServerMessage::Shutdown).is_err() {
                    eprintln!("Failed to send shutdown message");
                }
            }
            drop(settings);
        });
    }

    fn on_exit(&mut self, _gl: Option<&eframe::glow::Context>) {
        if self.tx.try_send(ServerMessage::Shutdown).is_err() {
            eprintln!("Failed to send shutdown message");
        }
    }
}