"""Tests for core evaluation functionality."""
import pytest
import os
import json
from datetime import datetime
from src.core.evaluation import EvaluationManager, EvaluationRequest

@pytest.fixture
def evaluation_manager(tmp_path):
    """Create evaluation manager with temporary directories."""
    results_dir = tmp_path / "results"
    backup_dir = tmp_path / "backups"
    return EvaluationManager(str(results_dir), str(backup_dir))

def test_evaluation_manager_init(evaluation_manager):
    """Test evaluation manager initialization."""
    assert os.path.exists(evaluation_manager.results_dir)
    assert os.path.exists(evaluation_manager.backup_dir)

def test_backup_results(evaluation_manager):
    """Test backup creation."""
    # Create test results
    eval_id = "test_model_main"
    result_path = os.path.join(evaluation_manager.results_dir, f"{eval_id}.json")
    test_results = {"test": "data"}
    
    os.makedirs(os.path.dirname(result_path), exist_ok=True)
    with open(result_path, 'w') as f:
        json.dump(test_results, f)
        
    # Create backup
    evaluation_manager.backup_results(eval_id)
    
    # Check backup exists
    backup_files = os.listdir(evaluation_manager.backup_dir)
    assert len(backup_files) == 1
    assert backup_files[0].startswith(eval_id)

def test_run_evaluation(evaluation_manager):
    """Test full evaluation run."""
    request = EvaluationRequest(
        model_id="hf-internal-testing/tiny-random-gpt2",
        revision="main",
        precision="float16",
        weight_type="Safetensors",
        submitted_time=datetime.now()
    )
    
    results = evaluation_manager.run_evaluation(request)
    
    assert results["model_id"] == request.model_id
    assert results["revision"] == request.revision
    assert "security_score" in results
    assert "safetensors_compliant" in results

def test_evaluation_error_handling(evaluation_manager):
    """Test error handling during evaluation."""
    request = EvaluationRequest(
        model_id="invalid/model",
        revision="main",
        precision="float16",
        weight_type="Safetensors",
        submitted_time=datetime.now()
    )
    
    with pytest.raises(Exception):
        evaluation_manager.run_evaluation(request)

def test_concurrent_evaluations(evaluation_manager, tmp_path):
    """Test handling of concurrent evaluations."""
    import threading
    import time
    
    def run_eval(model_id):
        request = EvaluationRequest(
            model_id=model_id,
            revision="main",
            precision="float16",
            weight_type="Safetensors",
            submitted_time=datetime.now()
        )
        try:
            evaluation_manager.run_evaluation(request)
        except Exception:
            pass
    
    # Start multiple evaluation threads
    threads = []
    for i in range(3):
        thread = threading.Thread(
            target=run_eval,
            args=(f"model_{i}",)
        )
        threads.append(thread)
        thread.start()
    
    # Wait for all threads to complete
    for thread in threads:
        thread.join()
    
    # Check results directory integrity
    assert os.path.exists(evaluation_manager.results_dir)
    assert os.path.exists(evaluation_manager.backup_dir)