/*******************************************************************************
 * Copyright (C) 2017, MINRES Technologies GmbH
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 * 3. Neither the name of the copyright holder nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 * Contributors:
 *       eyck@minres.com - initial API and implementation
 ******************************************************************************/

#ifndef _CLI_OPTIONS_H_
#define _CLI_OPTIONS_H_
#include <boost/program_options.hpp>
#include <cstdio>
#include <iostream>
#include <util/logging.h>

namespace {
const size_t ERROR_IN_COMMAND_LINE = 1;
const size_t SUCCESS = 0;
const size_t ERROR_UNHANDLED_EXCEPTION = 2;

inline void enable_log_level(int level) {
    switch (level) {
    case 0:
        logging::Logger::reporting_level() = logging::FATAL;
    /* no break */
    case 1:
        logging::Logger::reporting_level() = logging::ERROR;
    /* no break */
    case 2:
        logging::Logger::reporting_level() = logging::WARNING;
    /* no break */
    case 3:
        logging::Logger::reporting_level() = logging::INFO;
    /* no break */
    case 4:
        logging::Logger::reporting_level() = logging::DEBUG;
    /* no break */
    case 5:
        logging::Logger::reporting_level() = logging::TRACE;
        /* no break */
    }
}

inline void configure_default_logger(boost::program_options::variables_map &vm) {
    //	el::Configurations defaultConf;
    //	defaultConf.setToDefault();
    //	defaultConf.set(el::Level::Error, el::ConfigurationType::Format,
    //"%datetime{%H:%m:%s.%g} %level %msg");
    //	defaultConf.set(el::Level::Warning, el::ConfigurationType::Format,
    //"%datetime{%H:%m:%s.%g} %level %msg");
    //	defaultConf.set(el::Level::Info, el::ConfigurationType::Format,
    //"%datetime{%H:%m:%s.%g} %level %msg");
    //	defaultConf.set(el::Level::Debug, el::ConfigurationType::Format,
    //"%datetime{%H:%m:%s.%g} %level %msg");
    //	defaultConf.set(el::Level::Trace, el::ConfigurationType::Format,
    //"%datetime{%H:%m:%s.%g} %level %msg");
    if (vm.count("verbose")) enable_log_level(vm["verbose"].as<int>());
    if (vm.count("log-file")) logging::Output2FILE::stream() = fopen(vm["log-file"].as<std::string>().c_str(), "w");
    // default logger uses default configurations
    //	el::Loggers::reconfigureLogger("default", defaultConf);
}

inline void configure_debugger_logger() {
    // configure the connection logger
    //	el::Logger* gdbServerLogger = el::Loggers::getLogger(connection);
    //	el::Configurations gdbServerConf;
    //	gdbServerConf.setToDefault();
    //	gdbServerConf.set(el::Level::Error, el::ConfigurationType::Format,
    //			"%datetime{%H:%m:%s.%g} %level [%logger] %msg");
    //	gdbServerConf.set(el::Level::Warning, el::ConfigurationType::Format,
    //			"%datetime{%H:%m:%s.%g} %level [%logger] %msg");
    //	gdbServerConf.set(el::Level::Info, el::ConfigurationType::Format,
    //			"%datetime{%H:%m:%s.%g} %level [%logger] %msg");
    //	gdbServerConf.set(el::Level::Debug, el::ConfigurationType::Format,
    //			"%datetime{%H:%m:%s.%g} %level [%logger] %msg");
    //	gdbServerConf.set(el::Level::Trace, el::ConfigurationType::Format,
    //			"%datetime{%H:%m:%s.%g} %level [%logger] %msg");
    //	enable_log_level(gdbServerConf, 5);
    //	gdbServerLogger->configure(gdbServerConf);
}

inline void configure_disass_logger(boost::program_options::variables_map &vm) {
    //    el::Logger* disassLogger = el::Loggers::getLogger(disass);
    //    el::Configurations disassConf;
    //    if(vm.count(disass)){
    //        auto file_name=vm[disass].as<std::string>();
    //        disassConf.setToDefault();
    //        if (file_name.length() > 0) {
    //            disassConf.set(el::Level::Global, el::ConfigurationType::ToFile,
    //                    std::string("true"));
    //            disassConf.set(el::Level::Global,
    //                    el::ConfigurationType::ToStandardOutput,
    //                    std::string("false"));
    //            disassConf.set(el::Level::Global, el::ConfigurationType::Format,
    //                    std::string("%msg"));
    //            disassConf.set(el::Level::Global,
    //            el::ConfigurationType::Filename,
    //                    file_name);
    //            std::ofstream str(file_name); // just to clear the file
    //        } else {
    //            disassConf.set(el::Level::Global, el::ConfigurationType::Format,
    //                    "%datetime{%H:%m:%s.%g} [%logger] %msg");
    //        }
    //    } else {
    //        enable_log_level(disassConf, 0);
    //    }
    //	disassLogger->configure(disassConf);
}

} // namespace

inline int parse_cli_options(boost::program_options::variables_map &vm, int argc, char *argv[]) {
    namespace po = boost::program_options;
    po::options_description desc("Options");
    desc.add_options()("help,h", "Print help message")("verbose,v", po::value<int>()->implicit_value(0),
                                                       "Sets logging verbosity")("vmodule", po::value<std::string>(),
                                                                                 "Defines the module(s) to be logged")(
        "logging-flags", po::value<int>(), "Sets logging flag(s).")("log-file", po::value<std::string>(),
                                                                    "Sets default log file.")(
        "disass,d", po::value<std::string>()->implicit_value(""),
        "Enables disassembly")("elf,l", po::value<std::vector<std::string>>(), "ELF file(s) to load")(
        "gdb-port,g", po::value<unsigned>(), "enable gdb server and specify port to use")(
        "input,i", po::value<std::string>(), "the elf file to load (instead of hex files)")(
        "dump-ir", "dump the intermediate representation")("cycles,c", po::value<int64_t>()->default_value(-1),
                                                           "number of cycles to run")(
        "systemc,s", "Run as SystemC simulation")("time", po::value<int>(), "SystemC siimulation time in ms")(
        "reset,r", po::value<std::string>(), "reset address")(
        "trace", po::value<uint8_t>(), "enable tracing, or cmbintation of 1=signals and 2=TX text, 4=TX "
                                       "compressed text, 6=TX in SQLite")("mem,m", po::value<std::string>(),
                                                                          "the memory input file")("rv64", "run RV64");
    try {
        po::store(po::parse_command_line(argc, argv, desc), vm); // can throw
        // --help option
        if (vm.count("help")) {
            std::cout << "DBT-RISE-RiscV" << std::endl << desc << std::endl;
            return SUCCESS;
        }
        po::notify(vm); // throws on error, so do after help in case
    } catch (po::error &e) {
        // there are problems
        std::cerr << "ERROR: " << e.what() << std::endl << std::endl;
        std::cerr << desc << std::endl;
        return ERROR_IN_COMMAND_LINE;
    }
    return SUCCESS;
}
#endif /* _CLI_OPTIONS_H_ */