/*
 *  libfud
 *  Copyright 2024 Dominick Allen
 *
 *  Licensed under the Apache License, Version 2.0 (the "License"); you
 *  may not use this file except in compliance with the License.  You
 *  may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
 *  implied.  See the License for the specific language governing
 *  permissions and limitations under the License.
 */

#include "libfud.hpp"

#include "fud_config.hpp"

#include <cstdlib>

namespace fud {

FUD fud()
{
    FUD fudInfo{};
    static_assert(sizeof(FudGitHash) >= sizeof(fudInfo.revision));
    fudInfo.major = FudVersionMajor;
    fudInfo.minor = FudVersionMinor;
    fudInfo.patch = FudVersionPatch;
    copyMem<sizeof(fudInfo.revision) - 1>(fudInfo.revision, FudGitHash);
    fudInfo.revision[fudInfo.revision.size() - 1] = '\0';
    return fudInfo;
}

Result<Option<String>, FudStatus> getEnv(const char* name, Allocator* allocator)
{
    if (name == nullptr) {
        return Error{FudStatus::NullPointer};
    }

    const char* resultString = getenv(name);
    if (resultString == nullptr) {
        return Okay{Option<String>{NullOpt}};
    }

    auto result{String::makeFromCString(resultString, allocator)};
    if (result.isError()) {
        return Error{result.takeError()};
    }

    return Okay{Option<String>::take(result.takeOkay())};
}

} // namespace fud