"""
Inference functionality tests
"""
import pytest
import requests
from typing import Dict, Any


class TestInference:
    """Test inference endpoints"""
    
    @pytest.fixture
    def base_url(self):
        return "http://localhost:8000"
    
    def test_basic_inference(self, base_url):
        """Test basic inference endpoint"""
        payload = {
            "prompt": "What is EBITDA?",
            "max_new_tokens": 50,
            "temperature": 0.6
        }
        response = requests.post(f"{base_url}/inference", json=payload)
        assert response.status_code == 200
        data = response.json()
        assert "response" in data
        assert "model_used" in data
        assert len(data["response"]) > 0
    
    def test_inference_with_different_models(self, base_url):
        """Test inference with different model parameters"""
        payload = {
            "prompt": "Explain financial risk management",
            "max_new_tokens": 100,
            "temperature": 0.3
        }
        response = requests.post(f"{base_url}/inference", json=payload)
        assert response.status_code == 200
        data = response.json()
        assert "response" in data
        assert len(data["response"]) > 50  # Should be substantial response
    
    def test_inference_error_handling(self, base_url):
        """Test inference error handling"""
        # Test with invalid parameters
        payload = {
            "prompt": "",  # Empty prompt
            "max_new_tokens": 50
        }
        response = requests.post(f"{base_url}/inference", json=payload)
        # Should handle gracefully (either 400 or 200 with error message)
        assert response.status_code in [200, 400]
    
    def test_inference_performance(self, base_url):
        """Test inference performance (basic timing)"""
        import time
        
        payload = {
            "prompt": "What is the current ratio?",
            "max_new_tokens": 30,
            "temperature": 0.5
        }
        
        start_time = time.time()
        response = requests.post(f"{base_url}/inference", json=payload)
        end_time = time.time()
        
        assert response.status_code == 200
        response_time = end_time - start_time
        
        # Should respond within reasonable time (adjust based on your setup)
        assert response_time < 30  # 30 seconds max for simple query