#!/usr/bin/env python
# (C) 2025 Cadence Design Systems, Inc. (Cadence)
# All rights reserved.
# TERMS FOR USE OF SAMPLE CODE The software below ("Sample Code") is
# provided to current licensees or subscribers of Cadence products or
# SaaS offerings (each a "Customer").
# Customer is hereby permitted to use, copy, and modify the Sample Code,
# subject to these terms. Cadence claims no rights to Customer's
# modifications. Modification of Sample Code is at Customer's sole and
# exclusive risk. Sample Code may require Customer to have a then
# current license or subscription to the applicable Cadence offering.
# THE SAMPLE CODE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED.  OPENEYE DISCLAIMS ALL WARRANTIES, INCLUDING, BUT
# NOT LIMITED TO, WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
# PARTICULAR PURPOSE AND NONINFRINGEMENT. In no event shall Cadence be
# liable for any damages or liability in connection with the Sample Code
# or its use.

import os
import sys
from openeye import oechem, oespruce


def main(argv=[__name__]):
    if len(sys.argv) < 2:
        print("Input needed:\npython validate_designunit.py <input.oedu>")
        sys.exit(1)

    ifilename = sys.argv[1]

    if not os.path.exists(ifilename):
        oechem.OEThrow.Fatal(f"{ifilename} does not exist.")

    du = oechem.OEDesignUnit()
    if not oechem.OEReadDesignUnit(ifilename, du):
        oechem.OEThrow.Fatal("Cannot read design unit!")

    validator = oespruce.OEValidateDesignUnit()
    issue_code = validator.Validate(du)

    if issue_code == oespruce.OEDesignUnitIssueCodes_Success:
        print(f"Validation successful for '{ifilename}")
    else:
        print(f"Validation raised the following warning(s) for '{ifilename}")
        print(validator.GetMessages())


if __name__ == "__main__":
    sys.exit(main(sys.argv))