use crate::{
    gui::{
        app::{App, WINDOW_SIZE},
        tools,
    },
    util::{persistent_state::PersistentState, win},
};
use eframe::egui;

fn app_creator(
    cc: &eframe::CreationContext<'_>,
) -> Result<Box<dyn eframe::App>, Box<dyn std::error::Error + Send + Sync>> {
    // initialize App early to modify some things before returning it
    let mut app = Box::new(App::default());
    // load previously selected launch platform & settings from persistent state
    if let Some(persistent_state) = PersistentState::get() {
        persistent_state.apply_to(&mut app);
    }
    // check if we're elevated. if not, and the user wants an elevated launch - relaunch elevated
    if !app.flags.elevated && app.settings.start_elevated {
        win::elevate(win::ElevationExitMethod::Forced);
    }
    // refresh system info because it initializes with nothing
    app.system_info.refresh();
    // enable image loading support in egui
    egui_extras::install_image_loaders(&cc.egui_ctx);
    // set our initial theme, from earlier loaded settings. we set the egui theme
    // to dark here to work around system theme based switching of the egui style
    cc.egui_ctx.set_theme(egui::Theme::Dark);
    catppuccin_egui::set_theme(&cc.egui_ctx, app.settings.theme.into());
    // apply some global styling that we like
    cc.egui_ctx.all_styles_mut(|style| {
        style.spacing.item_spacing = egui::vec2(4.0, 4.0);
        style.interaction.selectable_labels = false;
        style.visuals.hyperlink_color = catppuccin_egui::Theme::from(app.settings.theme).text;
    });
    // load any extra fonts that we need
    let mut fonts = egui::FontDefinitions::default();
    fonts.font_data.insert(
        "Inter 18pt Light".to_owned(),
        egui::FontData::from_static(include_bytes!("../../assets/Inter_18pt-Light.ttf")).into(),
    );
    fonts
        .families
        .get_mut(&egui::FontFamily::Proportional)
        .unwrap()
        .insert(0, "Inter 18pt Light".to_owned());
    fonts.font_data.insert(
        "Inter 18pt Regular".to_owned(),
        egui::FontData::from_static(include_bytes!("../../assets/Inter_18pt-Regular.ttf")).into(),
    );
    fonts.families.insert(
        egui::FontFamily::Name("Inter 18pt Regular".into()),
        vec!["Inter 18pt Regular".to_owned()],
    );
    cc.egui_ctx.set_fonts(fonts);
    // finally return the App
    Ok(app)
}

pub fn run() {
    let options = eframe::NativeOptions {
        viewport: egui::ViewportBuilder::default()
            .with_resizable(false)
            .with_maximize_button(false)
            .with_inner_size(WINDOW_SIZE)
            .with_icon(tools::load_icon()),
        centered: true,
        ..Default::default()
    };
    eframe::run_native("GTA Tools", options, Box::new(app_creator)).unwrap();
}