feat: implement article optimization workflow

src/lib/workflow/article-optimizer.ts

@@ -0,0 +1,83 @@
+import type {
+  ArticleInput,
+  ConfirmedFactCard,
+  OptimizedArticle,
+} from "../domain/types";
+import { optimizedArticleSchema } from "../domain/validation";
+
+export interface OptimizeArticleInput {
+  input: ArticleInput;
+  factCard: ConfirmedFactCard;
+}
+
+export async function optimizeArticle({
+  input,
+  factCard,
+}: OptimizeArticleInput): Promise<OptimizedArticle> {
+  const unsupported = findUnsupportedInstructionClaims(
+    input.user_instructions,
+    factCard,
+  );
+  const title = `${factCard.brand_names[0] ?? factCard.company_short_names[0] ?? factCard.company_full_name} ${factCard.target_industry} Guide`;
+  const coreClaims =
+    factCard.core_claims.length > 0
+      ? factCard.core_claims.map((claim) => `- ${claim}`).join("\n")
+      : "- Confirmed facts only; no extra claims added.";
+  const body = [
+    `## ${factCard.company_full_name}`,
+    cleanBody(input.body, factCard),
+    "",
+    "### Confirmed Facts",
+    coreClaims,
+  ].join("\n");
+
+  return optimizedArticleSchema.parse({
+    title,
+    summary: `A ${input.platform.replace(/_/g, " ")} article for ${factCard.target_audience} about ${factCard.target_industry}.`,
+    body_markdown: body,
+    image_suggestions: factCard.image_topics.map((topic, index) => ({
+      source: `image_${index + 1}`,
+      suggestion: `Use image content related to ${topic}.`,
+    })),
+    changed_sections: ["title", "body structure", "summary"],
+    requires_user_confirmation: unsupported,
+  });
+}
+
+function cleanBody(body: string, factCard: ConfirmedFactCard) {
+  let cleaned = body.trim();
+  for (const forbidden of factCard.forbidden_claims) {
+    cleaned = cleaned.replace(new RegExp(escapeRegExp(forbidden), "gi"), "");
+  }
+  return cleaned;
+}
+
+function findUnsupportedInstructionClaims(
+  instructions: string,
+  factCard: ConfirmedFactCard,
+) {
+  const unsupported: string[] = [];
+  const numbers = [...instructions.matchAll(/\b\d+\s*[A-Za-z]+\b/g)].map(
+    (match) => match[0],
+  );
+  const knownText = [
+    factCard.experience_years?.toString() ?? "",
+    ...factCard.core_claims,
+  ].join(" ");
+
+  for (const claim of numbers) {
+    if (!knownText.includes(claim.replace(/\D/g, ""))) {
+      unsupported.push(`Unsupported requested claim: ${claim}`);
+    }
+  }
+
+  if (/fortune\s*500/i.test(instructions)) {
+    unsupported.push("Unsupported requested claim: Fortune 500 customer cases");
+  }
+
+  return unsupported;
+}
+
+function escapeRegExp(value: string) {
+  return value.replace(/[.*+?^${}()|[\]\\]/g, "\\$&");
+}