# groq_api.py

import os
import requests

GROQ_API_KEY = "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"

def summarize_match(job_description, cv_names, cv_snippets):
    if not GROQ_API_KEY:
        return "❌ GROQ_API_KEY not set."

    try:
        # Safety checks
        job_description = job_description.strip() or "[No description]"
        cv_names = cv_names[:3]
        cv_snippets = [s[:400] for s in cv_snippets[:3]]  # shorten per snippet

        if not cv_snippets or not any(cv_snippets):
            return "❌ No valid CV content to summarize."

        # Format prompt
        cv_info = "\n\n".join([
            f"{cv_names[i]}:\n{cv_snippets[i] or '[No content]'}"
            for i in range(len(cv_names))
        ])

        prompt = f"""
You are an AI recruiter assistant.

A company has the following job description:
---
{job_description}
---

Here are the top 3 candidate CVs (partial content):
{cv_info}

Please summarize why these candidates are a good fit for the job.
""".strip()

        print("📦 Prompt size (chars):", len(prompt))
        print("📦 Prompt preview:\n", prompt[:800])  # trim to preview

        # Call Groq
        response = requests.post(
            url="https://api.groq.com/openai/v1/chat/completions",
            headers={
                "Authorization": f"Bearer {GROQ_API_KEY}",
                "Content-Type": "application/json"
            },
            json={
                "model": "mixtral-8x7b-32768",
                "messages": [{"role": "user", "content": prompt}],
                "temperature": 0.5
            },
            timeout=30
        )

        response.raise_for_status()
        return response.json()["choices"][0]["message"]["content"]

    except requests.exceptions.RequestException as e:
        return f"❌ Groq API error: {e}"