MathMap.h

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/*
 * LSST Data Management System
 * Copyright 2017 AURA/LSST.
 *
 * This product includes software developed by the
 * LSST Project (http://www.lsst.org/).
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the LSST License Statement and
 * the GNU General Public License along with this program.  If not,
 * see <https://www.lsstcorp.org/LegalNotices/>.
 */
#ifndef ASTSHIM_MATHMAP_H
#define ASTSHIM_MATHMAP_H

#include <memory>

#include "astshim/base.h"
#include "astshim/Mapping.h"

namespace ast {

class MathMap : public Mapping {
    friend class Object;

public:
    MathMap(int nin, int nout, std::vector<std::string> const &fwd, std::vector<std::string> const &rev,
            std::string const &options = "")
            : Mapping(reinterpret_cast<AstMapping *>(astMathMap(nin, nout, fwd.size(), getCStrVec(fwd).data(),
                                                                rev.size(), getCStrVec(rev).data(), "%s",
                                                                options.c_str()))) {
        assertOK();
    }

    virtual ~MathMap() {}

    MathMap(MathMap const &) = default;
    MathMap(MathMap &&) = default;
    MathMap &operator=(MathMap const &) = delete;
    MathMap &operator=(MathMap &&) = default;

    std::shared_ptr<MathMap> copy() const { return std::static_pointer_cast<MathMap>(copyPolymorphic()); }

    int getSeed() const { return getI("Seed"); }

    bool getSimpFI() const { return getB("SimpFI"); }

    bool getSimpIF() const { return getB("SimpIF"); }

protected:
    virtual std::shared_ptr<Object> copyPolymorphic() const override {
        return copyImpl<MathMap, AstMathMap>();
    }

    explicit MathMap(AstMathMap *rawptr) : Mapping(reinterpret_cast<AstMapping *>(rawptr)) {
        if (!astIsAMathMap(getRawPtr())) {
            std::ostringstream os;
            os << "this is a " << getClassName() << ", which is not a MathMap";
            throw std::invalid_argument(os.str());
        }
    }

private:
    std::vector<char const *> getCStrVec(std::vector<std::string> const &strVec) {
        std::vector<char const *> cstrVec;
        for (auto const &str : strVec) {
            cstrVec.push_back(str.c_str());
        }
        return cstrVec;
    }
};

}  // namespace ast

#endif