/*

* Copyright 2024 Intel Corporation

*

* 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.

*/

// A utility function used in an integration test for logging initialization.

// svs

#include "svs/core/logging.h"

// svsmain

#include "svsmain.h"

// stl

#include <string_view>

namespace {

constexpr std::string_view HELP = R"(

usage: (1) logging level message

(2) logging --help

1. Emit a single logging of "message" at the requested level.

2. Print this help message.

Recognized values for `level` are:

"trace", "debug", "info", "warn", "error", "critical", "off"

Use this function in coordinate with the SVS logging environment variables to test logging

initialization.

)";

struct IsHelp {

bool operator()(std::string_view s) const { return s == "--help" || s == "-h"; }

};

inline constexpr IsHelp is_help{};

} // namespace

int svs_main(const std::vector<std::string>& args) {

const size_t nargs = args.size();

if (nargs <= 1) {

fmt::print("logging: invalid number of arguments\n");

fmt::print("{}\n", HELP);

return 0;

}

const auto& first = args.at(1);

if (is_help(first)) {

fmt::print("{}\n", HELP);

return 0;

}

if (nargs != 3) {

fmt::print("logging: invalid number of arguments\n");

fmt::print("{}\n", HELP);

return 0;

}

auto level = svs::logging::detail::level_from_string(first);

const auto& message = args.at(2);

svs::logging::log(level, "{}", message);

return 0;

}

SVS_DEFINE_MAIN();