require('dotenv').config();
const axios = require('axios');

async function testOpenAI() {
  const API_KEY = process.env.OPENAI_API_KEY;
  const MODEL   = process.env.OPENAI_MODEL || 'gpt-4o-mini';

  console.log('=== OpenAI API Access Test ===');
  console.log(`Model   : ${MODEL}`);
  console.log(`API Key : ${API_KEY ? API_KEY.slice(0, 7) + '...' + API_KEY.slice(-4) : '(not set)'}`);
  console.log('');

  if (!API_KEY) {
    console.log('❌ OPENAI_API_KEY not set in .env');
    process.exit(1);
  }

  try {
    const res = await axios.post(
      'https://api.openai.com/v1/chat/completions',
      {
        model: MODEL,
        max_tokens: 16,
        messages: [{ role: 'user', content: 'Reply with: OK' }],
      },
      {
        headers: {
          Authorization: `Bearer ${API_KEY}`,
          'Content-Type': 'application/json',
        },
        timeout: 15000,
      }
    );

    const reply  = res.data.choices?.[0]?.message?.content?.trim();
    const usage  = res.data.usage;
    const model  = res.data.model;

    console.log(`✅ Connected`);
    console.log(`   Model          : ${model}`);
    console.log(`   Response       : ${reply}`);
    console.log(`   Tokens used    : ${usage?.total_tokens} (prompt ${usage?.prompt_tokens} + completion ${usage?.completion_tokens})`);
    console.log(`   Est. cost      : $${((usage?.prompt_tokens / 1_000_000) * 0.15 + (usage?.completion_tokens / 1_000_000) * 0.60).toFixed(6)}`);

  } catch (err) {
    const status = err.response?.status;
    const msg    = err.response?.data?.error?.message || err.message;
    const code   = err.response?.data?.error?.code   || '';
    console.log(`❌ FAILED — HTTP ${status} ${code}: ${msg}`);
  }

  console.log('\n=== Done ===');
}

testOpenAI().catch(err => {
  console.error('Fatal:', err.message);
  process.exit(1);
});