SEO Metadata & Tag Generator

import { GoogleGenAI } from '@google/genai';

const ai = new GoogleGenAI({ apiKey: process.env.GEMINI_API_KEY });

async function runPrompt(variables: Record<string, string>) {
  let promptText = `Generate SEO metadata for a web page.

Page Topic: {{page_topic}}
Primary Keyword: {{primary_keyword}}
Secondary Keywords: {{secondary_keywords}}

Deliverables:
- Meta Title (under 60 chars)
- Meta Description (under 155 chars)
- Open Graph Title & Description for social sharing`;
  Object.entries(variables).forEach(([key, val]) => {
    promptText = promptText.replace(new RegExp(`{{\\s*${key}\\s*}}`, 'g'), val);
  });

  const response = await ai.models.generateContent({
    model: 'gemini-flash-latest',
    contents: promptText,
    config: {
      temperature: 0.7,
      systemInstruction: `You write technical SEO tags optimized for search engine visibility and click-through rates.`,
    },
  });

  return response.text;
}