#!/usr/bin/env python
# (C) 2022 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.


from openeye import oechem
from openeye import oeshape


def main(argv=[__name__]):
    if len(argv) != 4:
        oechem.OEThrow.Usage("%s <reffile> <rocs_hits_file> <output.sdf>" % argv[0])

    reffs = oechem.oemolistream(argv[1])
    fitfs = oechem.oemolistream(argv[2])
    outfs = oechem.oemolostream(argv[3])

    refmol = oechem.OEGraphMol()
    oechem.OEReadMolecule(reffs, refmol)

    # Get appropriate function to calculate analytic shape
    shapeFunc = oeshape.OEAnalyticShapeFunc()
    shapeFunc.SetupRef(refmol)

    res = oeshape.OEOverlapResults()
    for fitmol in fitfs.GetOEGraphMols():
        shapeFunc.Overlap(fitmol, res)
        oechem.OESetSDData(fitmol, "AnalyticTanimoto", "%.2f" % res.GetTanimoto())
        oechem.OEWriteMolecule(outfs, fitmol)


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