use ruin_app::prelude::*;
use ruin_ui::Border;

#[ruin_runtime::async_main]
async fn main() -> ruin_app::Result<()> {
    let title = "RUIN Counter";

    App::new()
        .window(
            Window::new()
                .title(title)
                .app_id("dev.ruin.counter")
                .size(960.0, 640.0),
        )
        .mount(view! {
            CounterApp(title = title) {}
        })
        .run()
        .await
}

#[component]
fn CounterApp(title: &'static str) -> impl IntoView {
    let count = use_signal(|| 0_i32);
    let doubled = use_memo({
        let count = count.clone();
        move || count.get() * 2
    });

    use_window_title({
        let count = count.clone();
        move || format!("{title} ({})", count.get())
    });

    view! {
        column(gap = 16.0, padding = 24.0) {
            text(role = TextRole::Heading(1), size = 32.0, weight = FontWeight::Semibold) {
                title
            }

            CounterActions(count = count.clone()) {}

            block(
                padding = 16.0,
                gap = 8.0,
                background = surfaces::raised(),
                border_radius = 12.0,
                border = Border::new(2.0, Color::rgb(0, 0, 0))
            ) {
                text(size = 18.0) { "count = "; count.clone() }
                text(color = colors::muted()) { "double = "; doubled.clone() }
            }
        }
    }
}

#[component]
fn CounterActions(count: Signal<i32>) -> impl IntoView {
    view! {
        row(gap = 8.0) {
            button(
                on_press = {
                    let count = count.clone();
                    move |_| {
                        count.update(|value| *value -= 1);
                    }
                },
            ) {
                "-1"
            }

            button(
                on_press = {
                    let count = count.clone();
                    move |_| {
                        let _ = count.set(0);
                    }
                },
            ) {
                "Reset"
            }

            button(
                on_press = {
                    let count = count.clone();
                    move |_| {
                        count.update(|value| *value += 1);
                    }
                },
            ) {
                "+1"
            }
        }
    }
}