export async function generateGeminiResponse(prompt: string): Promise<string | null> {
  const apiKey = process.env.GOOGLE_GEMINI_API_KEY;
  if (!apiKey) return null;

  const url = "https://generativelanguage.googleapis.com/v1beta/models/gemini-1.5-flash:generateContent?key=" + apiKey;
  
  try {
    const response = await fetch(url, {
      method: "POST",
      headers: {
        "Content-Type": "application/json"
      },
      body: JSON.stringify({
        contents: [
          { parts: [{ text: prompt }] }
        ]
      })
    });

    if (!response.ok) {
      throw new Error(`Google Gemini API error: ${response.statusText}`);
    }

    const data = await response.json();
    return data?.candidates?.[0]?.content?.parts?.[0]?.text || null;
  } catch (error) {
    console.error("Error calling Gemini API:", error);
    return null;
  }
}