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EpicNext-Cms/src/components/theme-vars.tsx
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TypeScript

import { siteSettings } from "@/lib/services/site-settings";
import { themePaletteCss } from "@/lib/theme-css";
import { FONTS, PRESETS, THEME_COLOR_KEYS, type ThemePalette } from "@/lib/theme-presets";
import { derivePublicForegrounds, readableColor } from "@/lib/theme-contrast";
// Injects the DB-driven CSS custom properties into :root, exactly like
// AtomCMS's app.blade.php. Falls back to the atom defaults when no DB. Covers
// colours, typography, buttons, links + an optional raw custom-CSS block.
export async function ThemeVars() {
const g = (k: string, d: string) => siteSettings.get(k, d);
const [
primary,
background,
surface,
dropdown,
navbar,
navbarText,
text,
textMuted,
accent,
success,
warning,
error,
info,
buttonColor,
buttonText,
buttonSecondary,
buttonSecondaryText,
buttonDanger,
buttonDangerText,
buttonOutline,
buttonOutlineText,
linkColor,
linkHover,
borderColor,
gradientFrom,
gradientTo,
borderRadius,
fontKey,
h1,
h2,
h3,
customCss,
] = await Promise.all([
g("color_primary", "#f59e0b"),
g("color_background", "#f8fafc"),
g("color_surface", "#ffffff"),
g("color_dropdown", "#ffffff"),
g("color_navbar", "#ffffff"),
g("color_navbar_text", "#1e293b"),
g("color_text", "#0f172a"),
g("color_text_muted", "#64748b"),
g("color_accent", "#10b981"),
g("color_success", "#16a34a"),
g("color_warning", "#eab308"),
g("color_error", "#ef4444"),
g("color_info", "#0ea5e9"),
g("button_primary_color", "#f59e0b"),
g("button_text_color", "#1e293b"),
g("button_secondary_color", "#22c55e"),
g("button_secondary_text_color", "#ffffff"),
g("button_danger_color", "#ef4444"),
g("button_danger_text_color", "#ffffff"),
g("button_outline_color", "#eeb425"),
g("button_outline_text_color", "#1a1a2e"),
g("link_color", "#eeb425"),
g("link_hover_color", "#cf9d15"),
g("border_color", "#eeb425"),
g("gradient_from", "#f59e0b"),
g("gradient_to", "#10b981"),
g("border_radius", "12"),
g("font_family", "nunito"),
g("size_heading_h1", "30"),
g("size_heading_h2", "22"),
g("size_heading_h3", "18"),
g("custom_css", ""),
]);
// Only hex/keyword color values are admin-controlled — sanitize defensively.
const safe = (v: string | null, d: string) => (v && /^[#a-zA-Z0-9(),.\s%-]+$/.test(v) ? v : d);
const px = (v: string | null, d: string) => (/^\d{1,3}$/.test(v ?? "") ? (v as string) : d);
const safeBackground = safe(background, "#f8fafc");
const safeSurface = safe(surface, "#ffffff");
const publicBackgrounds = [safeBackground, safeSurface];
const readableText = readableColor(safe(text, "#0f172a"), publicBackgrounds);
const readableMuted = readableColor(safe(textMuted, "#64748b"), publicBackgrounds);
const readablePrimary = readableColor(safe(primary, "#f59e0b"), publicBackgrounds);
const readableAccent = readableColor(safe(accent, "#10b981"), publicBackgrounds);
const readableLink = readableColor(safe(linkColor, "#eeb425"), publicBackgrounds);
const readableLinkHover = readableColor(safe(linkHover, "#cf9d15"), publicBackgrounds);
const readableButtonText = readableColor(
safe(buttonText, "#1e293b"),
[safe(buttonColor, "#f59e0b")],
);
const readableSecondaryText = readableColor(
safe(buttonSecondaryText, "#ffffff"),
[safe(buttonSecondary, "#22c55e")],
);
const readableDangerText = readableColor(
safe(buttonDangerText, "#ffffff"),
[safe(buttonDanger, "#ef4444")],
);
const readableNavbarText = readableColor(
safe(navbarText, "#1e293b"),
[safe(navbar, "#ffffff")],
);
const readablePrimaryForeground = readableColor(
safe(buttonText, "#1e293b"),
[safe(primary, "#f59e0b")],
);
const readableAccentForeground = readableColor("#ffffff", [safe(accent, "#10b981")]);
const semantic = derivePublicForegrounds({
color_background: safeBackground, color_surface: safeSurface,
color_dropdown: safe(dropdown, "#ffffff"), color_navbar: safe(navbar, "#ffffff"),
color_navbar_text: safe(navbarText, "#1e293b"), color_text: safe(text, "#0f172a"),
color_text_muted: safe(textMuted, "#64748b"), color_primary: safe(primary, "#f59e0b"),
color_accent: safe(accent, "#10b981"), button_primary_color: safe(buttonColor, "#f59e0b"),
button_text_color: safe(buttonText, "#1e293b"), button_secondary_color: safe(buttonSecondary, "#22c55e"),
button_secondary_text_color: safe(buttonSecondaryText, "#ffffff"), button_danger_color: safe(buttonDanger, "#ef4444"),
button_danger_text_color: safe(buttonDangerText, "#ffffff"), button_outline_color: safe(buttonOutline, "#eeb425"),
button_outline_text_color: safe(buttonOutlineText, "#1a1a2e"), link_color: safe(linkColor, "#eeb425"),
link_hover_color: safe(linkHover, "#cf9d15"),
});
const font = FONTS[fontKey ?? "nunito"] ?? FONTS.nunito;
const presetName = (await g("theme_preset", "Atom (golden)")) ?? "Atom (golden)";
const preset = PRESETS[presetName] ?? PRESETS["Atom (golden)"];
const darkPalette = Object.fromEntries(
await Promise.all(
THEME_COLOR_KEYS.map(async (key) => [
key,
safe(await g(`${key}_dark`, preset.dark[key]), preset.dark[key]),
] as const),
),
) as ThemePalette;
const darkCss = themePaletteCss("html.dark", darkPalette);
const css = `:root{
--color-primary:${safe(primary, "#f59e0b")};
--color-background:${safeBackground};
--color-surface:${safeSurface};
--color-dropdown:${safe(dropdown, "#ffffff")};
--color-navbar:${safe(navbar, "#ffffff")};
--color-navbar-text:${safe(navbarText, "#1e293b")};
--color-text:${safe(text, "#0f172a")};
--color-text-muted:${safe(textMuted, "#64748b")};
--color-accent:${safe(accent, "#10b981")};
--color-success:${safe(success, "#16a34a")};
--color-warning:${safe(warning, "#eab308")};
--color-error:${safe(error, "#ef4444")};
--color-info:${safe(info, "#0ea5e9")};
--button-color:${safe(buttonColor, "#f59e0b")};
--button-text-color:${safe(buttonText, "#1e293b")};
--button-secondary-color:${safe(buttonSecondary, "#22c55e")};
--button-secondary-text-color:${safe(buttonSecondaryText, "#ffffff")};
--button-danger-color:${safe(buttonDanger, "#ef4444")};
--button-danger-text-color:${safe(buttonDangerText, "#ffffff")};
--button-outline-color:${safe(buttonOutline, "#eeb425")};
--button-outline-text-color:${safe(buttonOutlineText, "#1a1a2e")};
--link-color:${safe(linkColor, "#eeb425")};
--link-hover-color:${safe(linkHover, "#cf9d15")};
--border-color:${safe(borderColor, "#eeb425")};
--gradient-from:${safe(gradientFrom, "#f59e0b")};
--gradient-to:${safe(gradientTo, "#10b981")};
--color-text-readable:${readableText};
--color-text-muted-readable:${readableMuted};
--color-primary-readable:${readablePrimary};
--color-accent-readable:${readableAccent};
--color-primary-foreground-readable:${readablePrimaryForeground};
--color-accent-foreground-readable:${readableAccentForeground};
--color-navbar-text-readable:${readableNavbarText};
--button-text-color-readable:${readableButtonText};
--button-secondary-text-color-readable:${readableSecondaryText};
--button-danger-text-color-readable:${readableDangerText};
--link-color-readable:${readableLink};
--link-hover-color-readable:${readableLinkHover};
--color-surface-text-readable:${semantic.byName.surface};
--color-dropdown-text-readable:${semantic.byName.dropdown};
--button-outline-text-color-readable:${semantic.byName["button-outline"]};
--color-pill-text-readable:${semantic.byName.pill};
--color-badge-text-readable:${semantic.byName.badge};
--color-overlay-text-readable:${semantic.byName.overlay};
--border-radius:${px(borderRadius, "12")}px;
--font-family:${font.stack};
--size-heading-h1:${px(h1, "30")}px;
--size-heading-h2:${px(h2, "22")}px;
--size-heading-h3:${px(h3, "18")}px;
}${darkCss}`;
const googleHref = font.google
? `https://fonts.googleapis.com/css2?family=${font.google}&display=swap`
: null;
return (
<>
{googleHref ? <link rel="stylesheet" href={googleHref} /> : null}
{/* biome-ignore lint/security/noDangerouslySetInnerHtml: server-built CSS from sanitized admin settings */}
<style dangerouslySetInnerHTML={{ __html: css }} />
{customCss && customCss.trim() ? (
// Staff-authored custom CSS (housekeeping → Theme). Trusted input.
// biome-ignore lint/security/noDangerouslySetInnerHtml: staff-authored theme CSS
<style dangerouslySetInnerHTML={{ __html: customCss }} />
) : null}
</>
);
}