#include <openbabel/babelconfig.h>

#include <openbabel/mol.h>

#include <openbabel/parsmart.h>

#include <openbabel/obconversion.h>

// Vendored alongside this file (LLVM Apache-2.0 WITH LLVM-exception)

// so the harness compiles outside of an LLVM/libfuzzer toolchain — in

// particular under GCC, where the libfuzzer headers aren't shipped.

#include "FuzzedDataProvider.h"

extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {

    if (Size < 2) return 0;

    FuzzedDataProvider fdp(Data, Size);

    // Use part of the data for SMARTS pattern

    std::string smarts_pattern = fdp.ConsumeRandomLengthString();

    // Use the rest for a SMILES molecule

    std::string smiles = fdp.ConsumeRemainingBytesAsString();

    if (smarts_pattern.empty() || smiles.empty()) return 0;

    OpenBabel::obErrorLog.StopLogging();

    OpenBabel::OBMol mol;

    OpenBabel::OBConversion conv;

    if (conv.SetInFormat("SMILES")) {

        if (conv.ReadString(&mol, smiles)) {

            OpenBabel::OBSmartsPattern sp;

            if (sp.Init(smarts_pattern)) {

                sp.Match(mol);

            }

        }

    }

    return 0;

}