/*******************************************************************************
 * Copyright (C) 2018 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.
 *
 *******************************************************************************/

#include "CLIParser.h"
#include <scc/report.h>
#include <iostream>
#include <iss/log_categories.h>
#include <stdexcept>

namespace po = boost::program_options;
using namespace sc_core;

CLIParser::CLIParser(int argc, char *argv[])
: desc("Options")
, valid(false) {
    scc::init_logging();
    LOGGER(DEFAULT)::reporting_level() = logging::WARNING;
    LOGGER(connection)::reporting_level() = logging::WARNING;
    LOGGER(SystemC)::reporting_level() = logging::WARNING;

    build();
    try {
        po::store(po::parse_command_line(argc, argv, desc), vm_); // can throw
        // --help option
        if (vm_.count("help")) {
            std::cout << "DBT-RISE-RiscV simulator for RISC-V" << std::endl << desc << std::endl;
        }
        po::notify(vm_); // throws on error, so do after help in case there are any problems
        valid = true;
    } catch (po::error &e) {
        std::cerr << "ERROR: " << e.what() << std::endl << std::endl;
        std::cerr << desc << std::endl;
    }
    if (vm_.count("verbose")) {                          // NONE, FATAL, ERROR, WARNING, INFO, DEBUG, TRACE
        const std::array<int, 8> verbosity = {SC_NONE,   // Logging::NONE
                                              SC_LOW,    // Logging::FATAL
                                              SC_LOW,    // Logging::ERROR
                                              SC_LOW,    // Logging::WARNING
                                              SC_MEDIUM, // Logging::INFO
                                              SC_HIGH,   // logging::DEBUG
                                              SC_FULL,   // logging::TRACE
                                              SC_DEBUG}; // logging::TRACE+1
        auto log_level = vm_["verbose"].as<int>();
        auto l = logging::as_log_level(log_level > 6 ? 6 : log_level);
        LOGGER(DEFAULT)::reporting_level() = l;
        LOGGER(DEFAULT)::print_time() = false;
        LOGGER(connection)::reporting_level() = l;
        LOGGER(connection)::print_time() = false;
        LOGGER(SystemC)::reporting_level() = l;
        LOGGER(SystemC)::print_time() = false;
        sc_report_handler::set_verbosity_level(verbosity[log_level]);
    }
    if (vm_.count("log-file")) {
        // configure the connection logger
        auto f = fopen(vm_["log-file"].as<std::string>().c_str(), "w");
        LOG_OUTPUT(DEFAULT)::stream() = f;
        LOG_OUTPUT(connection)::stream() = f;
        LOG_OUTPUT(SystemC)::stream() = f;
    }
}

void CLIParser::build() {
    // clang-format off
    desc.add_options()
            ("help,h", "Print help message")
            ("verbose,v", po::value<int>()->implicit_value(3), "Sets logging verbosity")
            ("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::string>(), "ELF file to load")
            ("gdb-port,g", po::value<unsigned short>()->default_value(0), "enable gdb server and specify port to use")
            ("dump-ir", "dump the intermediate representation")
            ("quantum", po::value<unsigned>(), "SystemC quantum time in ns")
            ("reset,r", po::value<std::string>(), "reset address")
            ("trace-level,t", po::value<unsigned>()->default_value(0), "enable tracing, or combination of 1=signals and 2=TX text, 4=TX compressed text, 6=TX in SQLite")
            ("trace-default-on", "enables tracing for all unspecified modules")
            ("trace-file", po::value<std::string>()->default_value("system"), "set th ename of the trace file")
            ("max_time,m", po::value<std::string>(), "maximum time to run")
            ("config-file,c", po::value<std::string>()->default_value(""), "read configuration from file")
            ("dump-config,dc", po::value<std::string>()->default_value(""), "dump configuration to file file");
    // clang-format on
}

CLIParser::~CLIParser() = default;