// SPDX-FileCopyrightText: 2026 Filip Leonarski, Paul Scherrer Institute <filip.leonarski@psi.ch>
// SPDX-License-Identifier: GPL-3.0-only

#include "MonomerLibrary.h"

#include <cstring>

#include "gemmi/read_cif.hpp"   // read_cif_from_memory

// Generated by CMakeLists.txt from monomers/*.cif (MonomerLibraryData.cpp in the build tree).
extern const EmbeddedMonomerFile embedded_monomer_files[];
extern const size_t embedded_monomer_file_count;

namespace {

gemmi::MonLib ReadEmbeddedMonomerLibrary() {
    gemmi::MonLib monlib;
    for (size_t i = 0; i < embedded_monomer_file_count; i++) {
        const EmbeddedMonomerFile &f = embedded_monomer_files[i];
        std::string text;
        for (size_t k = 0; k < f.n_pieces; k++)
            text += f.pieces[k];
        const gemmi::cif::Document doc = gemmi::read_cif_from_memory(text.data(), text.size(), f.name);
        if (std::strcmp(f.name, "ener_lib.cif") == 0)
            monlib.ener_lib.read(doc);
        else
            monlib.read_monomer_doc(doc);
    }
    return monlib;
}

}  // namespace

const gemmi::MonLib &EmbeddedMonomerLibrary() {
    static const gemmi::MonLib monlib = ReadEmbeddedMonomerLibrary();
    return monlib;
}

bool InEmbeddedMonomerLibrary(const std::string &code) {
    return EmbeddedMonomerLibrary().monomers.count(code) > 0;
}