Email Nurture Sequence Builder (Product Launch)

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

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

async function runPrompt(variables: Record<string, string>) {
  let promptText = `Write a 3-part automated email launch sequence for a new product.

Product Name: {{product_name}}
Key Benefit: {{key_benefit}}
Launch Date: {{launch_date}}

Sequence Breakdown:
- Email 1: Teaser / Problem Awareness
- Email 2: Solution Reveal & Proof
- Email 3: Launch Day & Call to Action`;
  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 are an email marketing strategist skilled in story-driven sequence design.`,
    },
  });

  return response.text;
}