Add blog CMS with tracked public posts

src/lib/dto.ts

@@ -111,3 +111,31 @@ export function parseAffiliate(body: Record<string, unknown>) {
     sortIndex: int(body.sortIndex),
   };
 }
+
+function slug(value: unknown): string {
+  const normalized = str(value, "slug")
+    .toLowerCase()
+    .replace(/[^a-z0-9]+/g, "-")
+    .replace(/^-+|-+$/g, "");
+
+  if (!normalized) {
+    throw new ValidationError('"slug" is invalid');
+  }
+
+  return normalized;
+}
+
+export function parseBlogPost(body: Record<string, unknown>) {
+  const isPublished = bool(body.isPublished);
+  const publishedAt = optDate(body.publishedAt);
+
+  return {
+    title: str(body.title, "title"),
+    slug: slug(body.slug),
+    excerpt: str(body.excerpt, "excerpt"),
+    coverImageUrl: optStr(body.coverImageUrl),
+    content: str(body.content, "content"),
+    isPublished,
+    publishedAt: isPublished ? publishedAt ?? new Date() : publishedAt,
+  };
+}