/*
 *	Protocol packet dissection
 */
#ifndef DISSECT_H
#define DISSECT_H
#include <string>
#include <sstream>
#include <iomanip>
#include "misc.h"
#include "cxx_semantics.h"
#include "command_id.h"
#include "device_proto.h"

namespace nitrokey {
namespace proto {

template <CommandID id, class HIDPacket>
class QueryDissector : semantics::non_constructible {
 public:
  static std::string dissect(const HIDPacket &pod) {
    std::stringstream out;

    out << "Raw HID packet:" << std::endl;
    out << ::nitrokey::misc::hexdump((const char *)(&pod), sizeof pod);

    out << "Contents:" << std::endl;
    out << "Command ID:\t" << commandid_to_string((CommandID)(pod.command_id))
        << std::endl;
      out << "CRC:\t"
        << std::hex << std::setw(2) << std::setfill('0')
        << pod.crc << std::endl;

      out << "Payload:" << std::endl;
    out << pod.payload.dissect();
    return out.str();
  }
};

template <CommandID id, class HIDPacket>
class ResponseDissector : semantics::non_constructible {
 public:
  static std::string dissect(const HIDPacket &pod) {
    std::stringstream out;

    // FIXME use values from firmware (possibly generate separate
    // header automatically)
    std::string status[4];
    status[0] = " STATUS_READY";
    status[1] = " STATUS_BUSY";
    status[2] = " STATUS_ERROR";
    status[3] = " STATUS_RECEIVED_REPORT";
    std::string cmd[11];
    cmd[0] = " CMD_STATUS_OK";
    cmd[1] = " CMD_STATUS_WRONG_CRC";
    cmd[2] = " CMD_STATUS_WRONG_SLOT";
    cmd[3] = " CMD_STATUS_SLOT_NOT_PROGRAMMED";
    cmd[4] = " CMD_STATUS_WRONG_PASSWORD";
    cmd[5] = " CMD_STATUS_NOT_AUTHORIZED";
    cmd[6] = " CMD_STATUS_TIMESTAMP_WARNING";
    cmd[7] = " CMD_STATUS_NO_NAME_ERROR";
    cmd[8] = " CMD_STATUS_NOT_SUPPORTED";
    cmd[9] = " CMD_STATUS_UNKNOWN_COMMAND";
    cmd[10] = " CMD_STATUS_AES_DEC_FAILED";

    out << "Raw HID packet:" << std::endl;
    out << ::nitrokey::misc::hexdump((const char *)(&pod), sizeof pod);

    out << "Device status:\t" << pod.device_status + 0 << " "
        << status[pod.device_status] << std::endl;
    out << "Command ID:\t" << commandid_to_string((CommandID)(pod.command_id)) << " hex: " << std::hex << (int)pod.command_id
        << std::endl;
    out << "Last command CRC:\t"
            << std::hex << std::setw(2) << std::setfill('0')
            << pod.last_command_crc << std::endl;
    out << "Last command status:\t" << pod.last_command_status + 0 << " "
        << cmd[pod.last_command_status] << std::endl;
    out << "CRC:\t"
            << std::hex << std::setw(2) << std::setfill('0')
            << pod.crc << std::endl;
      out << "Storage stick status:" << std::endl;
#define d(x) out << " "#x": \t"<< std::hex << std::setw(2) \
    << std::setfill('0')<< static_cast<int>(x) << std::endl;
    d(pod.storage_status.command_counter);
    d(pod.storage_status.command_id);
    d(pod.storage_status.device_status);
    d(pod.storage_status.progress_bar_value);
#undef d

    out << "Payload:" << std::endl;
    out << pod.payload.dissect();
    return out.str();
  }
};
}
}

#endif