5. Content Publishing Pipeline

const post = $input.first().json;

// Generate platform-specific captions
const platforms = [
  {
    platform: "twitter",
    prompt: `Write a tweet (max 240 chars) about: ${post.title}. Include 1-2 relevant hashtags. Be punchy and engaging.`,
    maxLength: 280
  },
  {
    platform: "linkedin",
    prompt: `Write a LinkedIn post (200-500 words) about: ${post.title}. Be professional, add insights, include 3-5 hashtags at the end.`,
    maxLength: 3000
  },
  {
    platform: "facebook",
    prompt: `Write a casual Facebook post about: ${post.title}. Be conversational and encourage comments. Include a question to drive engagement.`,
    maxLength: 1000
  }
];

return platforms.map(p => ({
  json: { ...p, article_url: post.url, image_url: post.featured_image }
}));