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// cosmic-theme 1.0.0, the part of it that does not depend on `palette`.
//
// `corner.rs`, `spacing.rs` and `layout.rs` are the crate's own files,
// byte-for-byte. They are the spacing scale, corner radii and density model
// that a COSMIC-native UI needs in order to match the desktop. The rest of
// cosmic-theme is colour work built on `palette` (40,874 lines, plus a
// proc-macro crate), which is out of reach.

mod corner;
mod layout;
mod spacing;

use crate::corner::{CornerRadii, Roundness};
use crate::spacing::{Density, Spacing};

fn show_spacing(tag: &str, s: Spacing) {
    println!(
        "{} {} {} {} {} {} {} {} {} {} {}",
        tag,
        s.space_none,
        s.space_xxxs,
        s.space_xxs,
        s.space_xs,
        s.space_s,
        s.space_m,
        s.space_l,
        s.space_xl,
        s.space_xxl,
        s.space_xxxl
    );
}

fn show_corner(tag: &str, c: CornerRadii) {
    println!(
        "{} {} {} {} {} {} {}",
        tag, c.radius_0[0], c.radius_xs[0], c.radius_s[0], c.radius_m[0], c.radius_l[0], c.radius_xl[0]
    );
}

fn main() {
    show_spacing("default", Spacing::default());
    show_spacing("compact", Spacing::from(Density::Compact));
    show_spacing("spacious", Spacing::from(Density::Spacious));
    show_spacing("standard", Spacing::from(Density::Standard));

    // Density round-trips through Spacing.
    for d in [Density::Compact, Density::Spacious, Density::Standard] {
        let s: Spacing = Spacing::from(d);
        let back: Density = Density::from(s);
        println!("roundtrip {:?} -> {:?}", d, back);
    }

    show_corner("default", CornerRadii::default());
    for r in [Roundness::Round, Roundness::SlightlyRound, Roundness::Square] {
        let c: CornerRadii = CornerRadii::from(r);
        let back: Roundness = Roundness::from(c);
        println!("corner {:?} -> {:?}", r, back);
        show_corner("  radii", CornerRadii::from(r));
    }
}