nexus/ui/src/components/ThemePaletteGrid.tsx

134 lines
3.5 KiB
TypeScript

import { cn } from "@/lib/utils";
/**
* Palette role shape emitted by the theme-generation workshop.
* Each role carries both a dark and light variant resolved as OKLCH + hex
* alongside a WCAG AA pass/fail flag computed against the generated
* background.
*/
export interface PaletteRole {
name: string;
dark: { oklch: string; hex: string; wcagAA: boolean };
light: { oklch: string; hex: string; wcagAA: boolean };
}
interface ThemePaletteGridProps {
palette: PaletteRole[];
variant?: "dark" | "light";
className?: string;
}
const ROLE_LABELS: Record<string, string> = {
background: "Background",
surface: "Surface",
overlay: "Overlay",
text: "Text",
"accent-1": "Accent 1",
"accent-2": "Accent 2",
"accent-3": "Accent 3",
};
function Swatch({
role,
variant,
}: {
role: PaletteRole;
variant: "dark" | "light";
}) {
const entry = variant === "dark" ? role.dark : role.light;
const label = ROLE_LABELS[role.name] ?? role.name;
return (
<div
className="flex flex-col gap-2 rounded-sm border border-border bg-card p-2"
style={{ minWidth: 96 }}
>
<div
className="rounded-sm border border-border"
style={{
height: 44,
backgroundColor: entry.hex,
}}
title={`${label}: ${entry.hex}`}
aria-label={`${label} swatch ${entry.hex}`}
/>
<div className="flex flex-col gap-0.5">
<span className="text-[11px] font-semibold uppercase tracking-[0.1em] text-foreground">
{label}
</span>
<span className="font-mono text-[11px] text-muted-foreground">
{entry.hex}
</span>
<span
className={cn(
"text-[10px] font-semibold uppercase tracking-[0.08em]",
entry.wcagAA ? "text-primary" : "text-destructive",
)}
>
{entry.wcagAA ? "AA" : "Fails AA"}
</span>
</div>
</div>
);
}
function PaletteRow({
palette,
variant,
}: {
palette: PaletteRole[];
variant: "dark" | "light";
}) {
return (
<div className="flex flex-col gap-2">
<span className="text-[12px] font-semibold uppercase tracking-[0.1em] text-muted-foreground">
{variant === "dark" ? "Dark mode" : "Light mode"}
</span>
<div className="flex flex-row flex-wrap gap-2">
{palette.map((role) => (
<Swatch key={role.name} role={role} variant={variant} />
))}
</div>
</div>
);
}
export function ThemePaletteGrid({
palette,
variant,
className,
}: ThemePaletteGridProps) {
if (palette.length === 0) {
return (
<div
className={cn(
"flex flex-col items-center justify-center gap-2 rounded-sm border border-dashed border-border p-8 text-center",
className,
)}
>
<h3 className="text-base font-bold text-foreground">No palette yet</h3>
<p className="max-w-xs text-sm text-muted-foreground">
Pick a seed color to generate a full OKLCH palette with dark and
light variants.
</p>
</div>
);
}
// When variant is passed explicitly, render only that row. Otherwise show
// both dark and light, so reviewers can compare the generated bundle.
if (variant) {
return (
<div className={cn("flex flex-col gap-4", className)}>
<PaletteRow palette={palette} variant={variant} />
</div>
);
}
return (
<div className={cn("flex flex-col gap-4", className)}>
<PaletteRow palette={palette} variant="dark" />
<PaletteRow palette={palette} variant="light" />
</div>
);
}