Initial OSS scaffold from Songs2VID (pre-strip)

lib/footer-badges.ts

@@ -0,0 +1,67 @@
+export type FooterBadgeInput = {
+  name?: string;
+  embedHtml?: string | null;
+  imageUrl?: string | null;
+  linkUrl?: string | null;
+  isActive?: boolean;
+  sortOrder?: number;
+};
+
+export type ParsedBadgeEmbed = {
+  imageUrl: string | null;
+  linkUrl: string | null;
+};
+
+/** Extract first <a href> + nested/nearby <img src> from pasted badge HTML. */
+export function parseBadgeEmbedHtml(html: string): ParsedBadgeEmbed {
+  const trimmed = html.trim();
+  if (!trimmed) return { imageUrl: null, linkUrl: null };
+
+  const hrefMatch =
+    trimmed.match(/<a\b[^>]*\bhref\s*=\s*["']([^"']+)["'][^>]*>/i) ??
+    trimmed.match(/href\s*=\s*["']([^"']+)["']/i);
+  const srcMatch =
+    trimmed.match(/<img\b[^>]*\bsrc\s*=\s*["']([^"']+)["'][^>]*>/i) ??
+    trimmed.match(/src\s*=\s*["']([^"']+)["']/i);
+
+  return {
+    linkUrl: hrefMatch?.[1]?.trim() || null,
+    imageUrl: srcMatch?.[1]?.trim() || null,
+  };
+}
+
+export function normalizeBadgeFields(input: FooterBadgeInput) {
+  const name = (input.name ?? "").trim();
+  const embedHtml = input.embedHtml?.trim() || null;
+  let imageUrl = input.imageUrl?.trim() || null;
+  let linkUrl = input.linkUrl?.trim() || null;
+
+  if (embedHtml) {
+    const parsed = parseBadgeEmbedHtml(embedHtml);
+    if (!imageUrl && parsed.imageUrl) imageUrl = parsed.imageUrl;
+    if (!linkUrl && parsed.linkUrl) linkUrl = parsed.linkUrl;
+  }
+
+  return {
+    name,
+    embedHtml,
+    imageUrl,
+    linkUrl,
+    isActive: input.isActive ?? true,
+    sortOrder:
+      typeof input.sortOrder === "number" && Number.isFinite(input.sortOrder)
+        ? Math.trunc(input.sortOrder)
+        : 0,
+  };
+}
+
+export function validateBadgeFields(fields: ReturnType<typeof normalizeBadgeFields>): string | null {
+  if (!fields.name) return "Name is required";
+  if (!fields.embedHtml && !fields.imageUrl) {
+    return "Provide embed HTML or an image URL";
+  }
+  if (fields.imageUrl && !fields.linkUrl && !fields.embedHtml) {
+    return "Link URL is required when using image URL only";
+  }
+  return null;
+}