"""
Test: Validate Hook System with Bracket Optimization

Quick test (3 trials) to verify:
1. Hooks load correctly
2. Hooks execute at proper points
3. Optimization still works with hooks enabled
"""

from pathlib import Path
import sys

# Add project root to path so we can import atomizer_paths
sys.path.insert(0, str(Path(__file__).parent.parent))

# Use intelligent path resolution
import atomizer_paths
atomizer_paths.ensure_imports()

from optimization_engine.core.runner import OptimizationRunner
from optimization_engine.result_extractors.extractors import (
    stress_extractor,
    displacement_extractor
)


# Dummy functions for quick testing (no actual NX calls)
_trial_count = 0

def dummy_model_updater(design_vars: dict):
    """Simulate model update."""
    print(f"\n[MODEL UPDATE] Design variables prepared")
    for name, value in design_vars.items():
        print(f"  {name} = {value:.4f}")


def dummy_simulation_runner() -> Path:
    """Simulate simulation run - return existing OP2 file."""
    global _trial_count
    _trial_count += 1

    # Use existing OP2 file from bracket study
    op2_file = atomizer_paths.studies() / "bracket_stress_minimization/optimization_results/bracket_sim1-solution_1.op2"

    if not op2_file.exists():
        raise FileNotFoundError(
            f"Test OP2 file not found: {op2_file}\n"
            "Please run a real solve first to generate this file."
        )

    print(f"\n[SIMULATION {_trial_count}] Using existing OP2: {op2_file.name}")
    return op2_file


if __name__ == "__main__":
    print("="*60)
    print("HOOK SYSTEM VALIDATION TEST")
    print("="*60)
    print("\nThis test will:")
    print("- Run 3 quick optimization trials")
    print("- Use dummy simulations (re-use existing OP2 file)")
    print("- Verify hooks execute at all lifecycle points")
    print("- Check that optimization completes successfully")
    print("="*60)

    config_path = atomizer_paths.studies() / "bracket_stress_minimization/optimization_config_stress_displacement.json"

    # Create runner (this should load plugins automatically)
    print("\n[INIT] Creating OptimizationRunner...")
    runner = OptimizationRunner(
        config_path=config_path,
        model_updater=dummy_model_updater,
        simulation_runner=dummy_simulation_runner,
        result_extractors={
            'stress_extractor': stress_extractor,
            'displacement_extractor': displacement_extractor
        }
    )

    # Check if hooks were loaded
    print("\n[HOOKS] Checking hook system...")
    hook_summary = runner.hook_manager.get_summary()
    print(f"  Total hooks: {hook_summary['total_hooks']}")
    print(f"  Enabled hooks: {hook_summary['enabled_hooks']}")

    if hook_summary['total_hooks'] > 0:
        print("\n  Hooks by point:")
        for point, info in hook_summary['by_hook_point'].items():
            if info['total'] > 0:
                print(f"    {point}: {info['names']}")
    else:
        print("  WARNING: No hooks loaded! Plugin directory may be empty.")

    print("\n" + "="*60)
    print("RUNNING 3-TRIAL TEST")
    print("="*60)

    try:
        # Run just 3 trials for quick validation
        study = runner.run(
            study_name="hook_validation_test",
            n_trials=3,
            resume=False
        )

        print("\n" + "="*60)
        print("TEST COMPLETE!")
        print("="*60)

        # Check hook execution history
        hook_history = runner.hook_manager.get_history()
        successful_hooks = [h for h in hook_history if h['success']]
        failed_hooks = [h for h in hook_history if not h['success']]

        print(f"\nHook Execution Summary:")
        print(f"  Total hook executions: {len(hook_history)}")
        print(f"  Successful: {len(successful_hooks)}")
        print(f"  Failed: {len(failed_hooks)}")

        if successful_hooks:
            print("\n  Successful hook executions:")
            for h in successful_hooks[:10]:  # Show first 10
                print(f"    Trial {h.get('trial_number', '?')}: {h['hook_name']} at {h['hook_point']}")

        if failed_hooks:
            print("\n  FAILED hook executions:")
            for h in failed_hooks:
                print(f"    Trial {h.get('trial_number', '?')}: {h['hook_name']} - {h.get('error', 'unknown error')}")

        print(f"\nOptimization Results:")
        print(f"  Best value: {study.best_value:.2f}")
        print(f"  Best parameters:")
        for param, value in study.best_params.items():
            print(f"    {param}: {value:.4f}")

        print("\n" + "="*60)
        print("VALIDATION PASSED!")
        print("="*60)
        print("\nThe hook system is working correctly:")
        print("  [OK] Hooks loaded from plugin directory")
        print("  [OK] Hooks executed during optimization")
        print("  [OK] Optimization completed successfully")
        print("  [OK] Results extracted correctly")

    except Exception as e:
        print(f"\n{'='*60}")
        print("TEST FAILED")
        print("="*60)
        print(f"{e}")
        import traceback
        traceback.print_exc()
        sys.exit(1)