mirui 0.45.0

//! Theme resource is wired into App at construction and can be
//! replaced through the `with_theme` builder.

use mirui::app::App;
use mirui::surface::framebuf::FramebufSurface;
use mirui::types::Color;
use mirui::ui::Theme;
use mirui::ui::theme::{ColorToken, ThemeError, ThemeId, ThemeInfo};

#[test]
fn app_new_inserts_default_theme() {
    let backend = FramebufSurface::new(64, 64, |_, _| {});
    let app = App::new(backend);
    let theme = app
        .world
        .resource::<Theme>()
        .expect("App::new must insert Theme");
    assert_eq!(
        theme.resolve(ColorToken::Primary),
        Theme::dark().resolve(ColorToken::Primary),
    );
}

#[test]
fn with_theme_replaces_default() {
    let backend = FramebufSurface::new(64, 64, |_, _| {});
    let mut app = App::new(backend);
    app.with_theme(Theme::light());
    let theme = app.world.resource::<Theme>().unwrap();
    assert_eq!(
        theme.resolve(ColorToken::Surface),
        Color::rgb(248, 248, 250)
    );
}

#[test]
fn with_theme_can_use_custom_palette() {
    let mut t = Theme::dark();
    t.set(ColorToken::Primary, Color::rgb(255, 0, 128));
    let backend = FramebufSurface::new(64, 64, |_, _| {});
    let mut app = App::new(backend);
    app.with_theme(t);
    assert_eq!(
        app.world
            .resource::<Theme>()
            .unwrap()
            .resolve(ColorToken::Primary),
        Color::rgb(255, 0, 128),
    );
}

#[test]
fn user_defined_token_round_trips_through_app() {
    const BRAND: ColorToken = ColorToken::custom("brand_red");
    let mut t = Theme::dark();
    t.set(BRAND, Color::rgb(220, 60, 70));
    let backend = FramebufSurface::new(64, 64, |_, _| {});
    let mut app = App::new(backend);
    app.with_theme(t);
    assert_eq!(
        app.world.resource::<Theme>().unwrap().resolve(BRAND),
        Color::rgb(220, 60, 70),
    );
}

#[test]
fn app_exposes_identity_and_scoped_theme_edits() {
    const BRAND: ColorToken = ColorToken::custom("brand");
    let backend = FramebufSurface::new(64, 64, |_, _| {});
    let mut app = App::new(backend);
    app.with_theme(Theme::dark().with_info(ThemeInfo::new(
        "studio",
        "Studio",
        "High-contrast studio palette",
    )));

    assert_eq!(app.theme().id(), ThemeId::new("studio"));
    assert_eq!(app.theme().name(), "Studio");
    app.edit_theme(|theme| {
        theme.set(BRAND, Color::rgb(12, 34, 56));
    });
    assert_eq!(app.theme().resolve(BRAND), Color::rgb(12, 34, 56));
}

#[test]
fn registered_themes_switch_by_id_and_keep_catalog_edits() {
    let backend = FramebufSurface::new(64, 64, |_, _| {});
    let mut app = App::new(backend);
    let ocean = Theme::dark().with_info(ThemeInfo::new("ocean", "Ocean", "Low-glare cyan palette"));

    app.register_theme(ocean);
    app.set_theme("ocean").unwrap();
    assert_eq!(app.theme().name(), "Ocean");
    assert_eq!(app.themes().len(), 3);

    app.edit_theme_id("ocean", |theme| {
        theme.set(ColorToken::Primary, Color::rgb(12, 34, 56));
    })
    .unwrap();
    app.set_theme("light").unwrap();
    app.set_theme(ThemeId::new("ocean")).unwrap();
    assert_eq!(
        app.theme().resolve(ColorToken::Primary),
        Color::rgb(12, 34, 56)
    );

    assert_eq!(
        app.set_theme("missing"),
        Err(ThemeError::NotFound(ThemeId::new("missing")))
    );
    assert_eq!(app.theme().id(), ThemeId::new("ocean"));
}

#[test]
fn theme_types_are_available_from_the_prelude() {
    use mirui::prelude::*;

    let theme = Theme::dark().with_info(ThemeInfo::new("prelude", "Prelude", "Visible"));
    let mut catalog = ThemeCatalog::new();
    catalog.insert(theme);
    assert_eq!(
        catalog.get(ThemeId::new("prelude")).unwrap().name(),
        "Prelude"
    );
}

#[test]
fn set_theme_swaps_resource_and_marks_tree_dirty() {
    use mirui::ui::builder::WidgetBuilder;
    use mirui::ui::dirty::Dirty;

    let backend = FramebufSurface::new(64, 64, |_, _| {});
    let mut app = App::new(backend);
    app.with_default_widgets();

    let child_a = WidgetBuilder::new(&mut app.world).id();
    let child_b = WidgetBuilder::new(&mut app.world).id();
    let root = WidgetBuilder::new(&mut app.world)
        .child(child_a)
        .child(child_b)
        .id();
    app.set_root(root);

    // Sanity: we cleared the freshly-spawned tree's Dirty so the swap signal is unambiguous.
    app.world.remove::<Dirty>(root);
    app.world.remove::<Dirty>(child_a);
    app.world.remove::<Dirty>(child_b);
    assert!(app.world.get::<Dirty>(root).is_none());

    app.set_theme(Theme::light()).unwrap();

    let theme = app.world.resource::<Theme>().unwrap();
    assert_eq!(
        theme.resolve(ColorToken::Surface),
        Theme::light().resolve(ColorToken::Surface),
    );

    // Live repaint contract: every entity in the rooted tree carries Dirty
    // after a theme swap, so the next render frame redraws unconditionally.
    assert!(app.world.get::<Dirty>(root).is_some());
    assert!(app.world.get::<Dirty>(child_a).is_some());
    assert!(app.world.get::<Dirty>(child_b).is_some());
}

#[test]
fn set_root_publishes_widget_root_resource() {
    use mirui::ui::WidgetRoot;
    use mirui::ui::builder::WidgetBuilder;

    let backend = FramebufSurface::new(64, 64, |_, _| {});
    let mut app = App::new(backend);
    app.with_default_widgets();
    let root = WidgetBuilder::new(&mut app.world).id();
    app.set_root(root);

    let cached = app.world.resource::<WidgetRoot>().expect(
        "WidgetRoot must be published so handlers can reach the live root without an App ref",
    );
    assert_eq!(cached.0, root);
}

#[test]
fn set_theme_without_root_only_swaps_resource() {
    let backend = FramebufSurface::new(64, 64, |_, _| {});
    let mut app = App::new(backend);
    app.set_theme(Theme::light()).unwrap();
    assert_eq!(
        app.world
            .resource::<Theme>()
            .unwrap()
            .resolve(ColorToken::Surface),
        Theme::light().resolve(ColorToken::Surface),
    );
}