"""
Test NX Solver Integration

Tests running NX Nastran in batch mode.
"""

from pathlib import Path
import sys

project_root = Path(__file__).parent.parent
sys.path.insert(0, str(project_root))

from optimization_engine.nx_solver import NXSolver, run_nx_simulation


def test_solver_basic():
    """Test basic solver execution."""
    print("="*60)
    print("TEST 1: Basic Solver Execution")
    print("="*60)

    sim_file = project_root / "examples/bracket/Bracket_sim1.sim"

    if not sim_file.exists():
        print(f"ERROR: Simulation file not found: {sim_file}")
        return False

    try:
        # Initialize solver
        solver = NXSolver(nastran_version="2412", timeout=300)
        print(f"\nSolver initialized:")
        print(f"  NX Directory: {solver.nx_install_dir}")
        print(f"  Solver Exe: {solver.solver_exe}")

        # Run simulation
        result = solver.run_simulation(
            sim_file=sim_file,
            cleanup=False  # Keep all files for inspection
        )

        print(f"\n{'='*60}")
        print("SOLVER RESULT:")
        print(f"{'='*60}")
        print(f"  Success: {result['success']}")
        print(f"  Time: {result['elapsed_time']:.1f}s")
        print(f"  OP2 file: {result['op2_file']}")
        print(f"  Return code: {result['return_code']}")

        if result['errors']:
            print(f"\n  Errors:")
            for error in result['errors']:
                print(f"    {error}")

        return result['success']

    except Exception as e:
        print(f"\nERROR: {e}")
        import traceback
        traceback.print_exc()
        return False


def test_convenience_function():
    """Test convenience function."""
    print("\n" + "="*60)
    print("TEST 2: Convenience Function")
    print("="*60)

    sim_file = project_root / "examples/bracket/Bracket_sim1.sim"

    try:
        op2_file = run_nx_simulation(
            sim_file=sim_file,
            nastran_version="2412",
            timeout=300,
            cleanup=True
        )

        print(f"\nSUCCESS!")
        print(f"  OP2 file: {op2_file}")
        print(f"  File exists: {op2_file.exists()}")
        print(f"  File size: {op2_file.stat().st_size / 1024:.1f} KB")

        return True

    except Exception as e:
        print(f"\nFAILED: {e}")
        import traceback
        traceback.print_exc()
        return False


if __name__ == "__main__":
    print("="*60)
    print("NX SOLVER INTEGRATION TEST")
    print("="*60)
    print("\nThis will run NX Nastran solver in batch mode.")
    print("Make sure:")
    print("  1. NX 2412 is installed")
    print("  2. No NX GUI sessions are using the .sim file")
    print("  3. You have write permissions in the bracket folder")
    print("\n" + "="*60)

    input("\nPress ENTER to continue or Ctrl+C to cancel...")

    # Test 1: Basic execution
    test1_result = test_solver_basic()

    if test1_result:
        # Test 2: Convenience function
        test2_result = test_convenience_function()

        if test2_result:
            print("\n" + "="*60)
            print("ALL TESTS PASSED ✓")
            print("="*60)
            print("\nNX solver integration is working!")
            print("You can now use it in optimization loops.")
        else:
            print("\n" + "="*60)
            print("TEST 2 FAILED")
            print("="*60)
    else:
        print("\n" + "="*60)
        print("TEST 1 FAILED - Skipping Test 2")
        print("="*60)
        print("\nCheck:")
        print("  - NX installation path")
        print("  - .sim file is valid")
        print("  - NX license is available")