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//
// Copyright 2010,2013-2014 Ettus Research LLC
// Copyright 2018 Ettus Research, a National Instruments Company
//
// SPDX-License-Identifier: GPL-3.0-or-later
//

#include <uhd/device.hpp>
#include <uhd/property_tree.hpp>
#include <uhd/types/device_addr.hpp>
#include <uhd/usrp/mboard_eeprom.hpp>
#include <uhd/utils/safe_main.hpp>
#include <boost/algorithm/string.hpp>
#include <boost/format.hpp>
#include <boost/program_options.hpp>
#include <iostream>
#include <vector>

namespace po = boost::program_options;

int UHD_SAFE_MAIN(int argc, char* argv[])
{
    std::string args, input_str;

    po::options_description desc("Allowed options");
    // clang-format off
    desc.add_options()
        ("help", "help message")
        ("args", po::value<std::string>(&args)->default_value(""), "device address args [default = \"\"]")
        ("values", po::value<std::string>(&input_str), "keys+values to read/write, separate multiple by \",\"")
        ("read-all", "Read all motherboard EEPROM values without writing")
    ;
    // clang-format on

    po::variables_map vm;
    po::store(po::parse_command_line(argc, argv, desc), vm);
    po::notify(vm);

    // print the help message
    if (vm.count("help") or (not vm.count("values") and not vm.count("read-all"))) {
        std::cout << boost::format("USRP Burn Motherboard EEPROM %s") % desc << std::endl;
        std::cout << boost::format("In values argument, omit value to perform a readback,\n"
                                   "Or specify a new value to burn into the EEPROM.\n"
                                   "Example (write to ip-addr0 and read out ip-addr1):\n"
                                   "    usrp_burn_mb_eeprom --args=<device args> "
                                   "--values \"ip-addr0=192.168.10.3,ip-addr1\"")
                  << std::endl;
        return EXIT_FAILURE;
    }

    std::cout << "Creating USRP device from address: " + args << std::endl;
    uhd::device::sptr dev         = uhd::device::make(args, uhd::device::USRP);
    uhd::property_tree::sptr tree = dev->get_tree();
    uhd::usrp::mboard_eeprom_t mb_eeprom =
        tree->access<uhd::usrp::mboard_eeprom_t>("/mboards/0/eeprom").get();
    std::cout << std::endl;

    std::vector<std::string> keys_vec, vals_vec;
    if (vm.count("read-all")) {
        keys_vec = mb_eeprom.keys();
        // Leaving vals_vec empty will force utility to only read
    }
    else if (vm.count("values")) {
        // uhd::device_addr_t properly parses input values
        uhd::device_addr_t vals(input_str);
        keys_vec = vals.keys();
        vals_vec = vals.vals();
    }

    // 1. Read out values
    std::cout << "Fetching current settings from EEPROM..." << std::endl;
    for (size_t i = 0; i < keys_vec.size(); i++) {
        if (not mb_eeprom.has_key(keys_vec[i])) {
            std::cerr << boost::format("Cannot find value for EEPROM[%s]") % keys_vec[i]
                      << std::endl;
            return EXIT_FAILURE;
        }
        std::cout << boost::format("    EEPROM [\"%s\"] is \"%s\"") % keys_vec[i]
                         % mb_eeprom[keys_vec[i]]
                  << std::endl;
    }
    std::cout << std::endl;

    // 2. Write new values if given
    if (not vals_vec.empty()) {
        mb_eeprom = uhd::usrp::mboard_eeprom_t();
        for (size_t i = 0; i < vals_vec.size(); i++) {
            if (!vals_vec[i].empty()) {
                mb_eeprom[keys_vec[i]] = vals_vec[i];
                std::cout << boost::format("Setting EEPROM [\"%s\"] to \"%s\"...")
                                 % keys_vec[i] % vals_vec[i]
                          << std::endl;
            }
        }
        tree->access<uhd::usrp::mboard_eeprom_t>("/mboards/0/eeprom").set(mb_eeprom);
        std::cout << "Power-cycle the USRP device for the changes to take effect."
                  << std::endl;
        std::cout << std::endl;
    }
    std::cout << "Done" << std::endl;
    return EXIT_SUCCESS;
}