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#ifndef STICK20_COMMANDS_H
#define STICK20_COMMANDS_H

#include "inttypes.h"
#include "command.h"
#include <string>
#include <sstream>
#include "device_proto.h"


namespace nitrokey {
    namespace proto {

/*
*	STICK20 protocol command ids
*	a superset (almost) of STICK10
*/
#define print_to_ss(x) ( ss << " " << (#x) <<":\t" << (x) << std::endl );
        namespace stick20 {

            enum class PasswordKind : uint8_t {
                User = 'P',
                Admin = 'A'
            };

            class ChangeAdminUserPin20Current : Command<CommandID::SEND_PASSWORD> {
            public:
                struct CommandPayload {
                    uint8_t kind;
                    uint8_t old_pin[20];

                    std::string dissect() const {
                      std::stringstream ss;
                      print_to_ss( kind );
                      ss << " old_pin:\t" << old_pin << std::endl;
                      return ss.str();
                    }

                    void set_kind(PasswordKind k) {
                      kind = (uint8_t) k;
                    }
                } __packed;

                typedef Transaction<command_id(), struct CommandPayload, struct EmptyPayload>
                    CommandTransaction;
            };


            class ChangeAdminUserPin20New : Command<CommandID::SEND_NEW_PASSWORD> {
            public:

                struct CommandPayload {
                    uint8_t kind;
                    uint8_t new_pin[20];

                    std::string dissect() const {
                      std::stringstream ss;
                      print_to_ss( kind );
                      ss << " new_pin:\t" << new_pin << std::endl;
                      return ss.str();
                    }

                    void set_kind(PasswordKind k) {
                      kind = (uint8_t) k;
                    }

                } __packed;

                typedef Transaction<command_id(), struct CommandPayload, struct EmptyPayload>
                    CommandTransaction;
            };


            class UnlockUserPassword : Command<CommandID::UNLOCK_USER_PASSWORD> {
            public:
                struct CommandPayload {
                    uint8_t kind;
                    uint8_t user_new_password[20];

                    std::string dissect() const {
                      std::stringstream ss;
                      print_to_ss( kind );
                      ss << " user_new_password:\t" << user_new_password << std::endl;
                      return ss.str();
                    }

                    void set_kind(PasswordKind k) {
                      kind = (uint8_t) k;
                    }
                } __packed;

                typedef Transaction<command_id(), struct CommandPayload, struct EmptyPayload>
                    CommandTransaction;
            };

            class EnableEncryptedPartition : public PasswordCommand<CommandID::ENABLE_CRYPTED_PARI> {};
            class DisableEncryptedPartition : public PasswordCommand<CommandID::DISABLE_CRYPTED_PARI> {};
            class EnableHiddenEncryptedPartition : public PasswordCommand<CommandID::ENABLE_HIDDEN_CRYPTED_PARI> {};
            class DisableHiddenEncryptedPartition : public PasswordCommand<CommandID::DISABLE_CRYPTED_PARI> {};
            class EnableFirmwareUpdate : public PasswordCommand<CommandID::ENABLE_FIRMWARE_UPDATE> {};

            class UpdatePassword : Command<CommandID::CHANGE_UPDATE_PIN> {
            public:
                struct CommandPayload {
                    uint8_t old_password[15];
                    uint8_t new_password[15];
                    std::string dissect() const {
                      std::stringstream ss;
                      print_to_ss( old_password );
                      print_to_ss( new_password );
                      return ss.str();
                    }
                };

                typedef Transaction<command_id(), struct CommandPayload, struct EmptyPayload>
                    CommandTransaction;
            };

            class ExportFirmware : public PasswordCommand<CommandID::EXPORT_FIRMWARE_TO_FILE> {};

            class CreateNewKeys : Command<CommandID::GENERATE_NEW_KEYS> {
            public:
                struct CommandPayload {
                    uint8_t kind;
                    uint8_t admin_password[30]; //CS20_MAX_PASSWORD_LEN
                    std::string dissect() const {
                      std::stringstream ss;
                      print_to_ss( kind );
                      ss << " admin_password:\t" << admin_password << std::endl;
                      return ss.str();
                    }

                    void setKindPrefixed() {
                      kind = 'P';
                    }
                } __packed;

                typedef Transaction<command_id(), struct CommandPayload, struct EmptyPayload>
                    CommandTransaction;
            };

//            class FillSDCardWithRandomChars : public PasswordCommand<CommandID::FILL_SD_CARD_WITH_RANDOM_CHARS> {};


            class FillSDCardWithRandomChars : Command<CommandID::FILL_SD_CARD_WITH_RANDOM_CHARS> {
            public:
                enum class ChosenVolumes : uint8_t {
                    all_volumes = 0,
                    encrypted_volume = 1
                };

                struct CommandPayload {
                    uint8_t volume_flag;
                    uint8_t kind;
                    uint8_t password[20];

                    std::string dissect() const {
                      std::stringstream ss;
                      print_to_ss( (int) volume_flag );
                      print_to_ss( kind );
                      print_to_ss(password);
                      return ss.str();
                    }
                    void set_kind_user() {
                      kind = (uint8_t) 'P';
                    }
                    void set_defaults(){
                      set_kind_user();
                      volume_flag = static_cast<uint8_t>(ChosenVolumes::encrypted_volume);
                    }

                } __packed;

                typedef Transaction<Command<CommandID::FILL_SD_CARD_WITH_RANDOM_CHARS>::command_id(),
                    struct CommandPayload, struct EmptyPayload>
                    CommandTransaction;
            };




            class SendStartup : Command<CommandID::SEND_STARTUP> {
            public:
                struct CommandPayload {
                    uint64_t localtime;  // POSIX seconds from epoch start, supports until year 2106
                    std::string dissect() const {
                      std::stringstream ss;
                      print_to_ss( localtime );
                      return ss.str();
                    }
                    void set_defaults(){
                      localtime =
                          std::chrono::duration_cast<std::chrono::seconds> (
                              std::chrono::system_clock::now().time_since_epoch()).count();
                    }
                }__packed;

                static const int OUTPUT_CMD_RESULT_STICK20_STATUS_START = 25 + 1;
                static const int payload_absolute_begin = 8;
                static const int padding_size = OUTPUT_CMD_RESULT_STICK20_STATUS_START - payload_absolute_begin;

                struct ResponsePayload {
                    uint8_t _padding[padding_size];

                    uint8_t SendCounter_u8;
                    uint8_t SendDataType_u8;
                    uint8_t FollowBytesFlag_u8;
                    uint8_t SendSize_u8;

                    uint16_t MagicNumber_StickConfig_u16;
                    uint8_t ReadWriteFlagUncryptedVolume_u8;
                    uint8_t ReadWriteFlagCryptedVolume_u8;
                    uint8_t VersionInfo_au8[4];
                    uint8_t ReadWriteFlagHiddenVolume_u8;
                    uint8_t FirmwareLocked_u8;
                    uint8_t NewSDCardFound_u8;
                    uint8_t SDFillWithRandomChars_u8;
                    uint32_t ActiveSD_CardID_u32;
                    uint8_t VolumeActiceFlag_u8;
                    uint8_t NewSmartCardFound_u8;
                    uint8_t UserPwRetryCount;
                    uint8_t AdminPwRetryCount;
                    uint32_t ActiveSmartCardID_u32;
                    uint8_t StickKeysNotInitiated;

                    bool isValid() const { return true; }

                    std::string dissect() const {
                      std::stringstream ss;

                      print_to_ss((int) SendCounter_u8 );
                      print_to_ss((int) SendDataType_u8 );
                      print_to_ss((int) FollowBytesFlag_u8 );
                      print_to_ss((int) SendSize_u8 );

                      print_to_ss( MagicNumber_StickConfig_u16 );
                      print_to_ss((int) ReadWriteFlagUncryptedVolume_u8 );
                      print_to_ss((int) ReadWriteFlagCryptedVolume_u8 );
                      print_to_ss((int) VersionInfo_au8[1] );
                      print_to_ss((int) VersionInfo_au8[3] );
                      print_to_ss((int) ReadWriteFlagHiddenVolume_u8 );
                      print_to_ss((int) FirmwareLocked_u8 );
                      print_to_ss((int) NewSDCardFound_u8 );
                      print_to_ss((int) SDFillWithRandomChars_u8 );
                      print_to_ss( ActiveSD_CardID_u32 );
                      print_to_ss((int) VolumeActiceFlag_u8 );
                      print_to_ss((int) NewSmartCardFound_u8 );
                      print_to_ss((int) UserPwRetryCount );
                      print_to_ss((int) AdminPwRetryCount );
                      print_to_ss( ActiveSmartCardID_u32 );
                      print_to_ss((int) StickKeysNotInitiated );
                      ss << "_padding:\t"
                         << ::nitrokey::misc::hexdump((const char *) (_padding),
                                                      sizeof _padding);
                      return ss.str();
                    }
                } __packed;

                typedef Transaction<command_id(), struct CommandPayload, struct ResponsePayload>
                    CommandTransaction;
            };


// TODO fix original nomenclature
            class SendSetReadonlyToUncryptedVolume : public PasswordCommand<CommandID::ENABLE_READONLY_UNCRYPTED_LUN> {};
            class SendSetReadwriteToUncryptedVolume : public PasswordCommand<CommandID::ENABLE_READWRITE_UNCRYPTED_LUN> {};
            class SendClearNewSdCardFound : public PasswordCommand<CommandID::CLEAR_NEW_SD_CARD_FOUND> {};

            class GetDeviceStatus : Command<CommandID::GET_DEVICE_STATUS> {
            public:

                typedef Transaction<command_id(), struct EmptyPayload, struct EmptyPayload>
                    CommandTransaction;
            };

            class SendHiddenVolumePassword : public PasswordCommand<CommandID::SEND_HIDDEN_VOLUME_PASSWORD> {};

            class SetupHiddenVolume : Command<CommandID::SEND_HIDDEN_VOLUME_SETUP> {
            public:
                constexpr static int MAX_HIDDEN_VOLUME_PASSOWORD_SIZE = 20;
                struct CommandPayload {
                    uint8_t SlotNr_u8;
                    uint8_t StartBlockPercent_u8;
                    uint8_t EndBlockPercent_u8;
                    uint8_t HiddenVolumePassword_au8[MAX_HIDDEN_VOLUME_PASSOWORD_SIZE + 1];
                }__packed;

                typedef Transaction<command_id(), struct CommandPayload, struct EmptyPayload>
                    CommandTransaction;
            };


            class LockFirmware : public PasswordCommand<CommandID::SEND_LOCK_STICK_HARDWARE> {};

            class ProductionTest : Command<CommandID::PRODUCTION_TEST> {
            public:
                static const int OUTPUT_CMD_RESULT_STICK20_STATUS_START = 25 + 1;
                static const int payload_absolute_begin = 8;
                static const int padding_size = OUTPUT_CMD_RESULT_STICK20_STATUS_START - payload_absolute_begin;

                struct ResponsePayload {
                    uint8_t _padding[padding_size];

                    uint8_t SendCounter_u8;
                    uint8_t SendDataType_u8;
                    uint8_t FollowBytesFlag_u8;
                    uint8_t SendSize_u8;

                    uint8_t FirmwareVersion_au8[2];        // 2 byte // 2
                    uint8_t FirmwareVersionInternal_u8;    // 1 byte // 3
                    uint8_t SD_Card_Size_u8;               // 1 byte // 4
                    uint32_t CPU_CardID_u32;                     // 4 byte // 8
                    uint32_t SmartCardID_u32;                    // 4 byte // 12
                    uint32_t SD_CardID_u32;                      // 4 byte // 16
                    uint8_t SC_UserPwRetryCount;           // User PIN retry count 1 byte  // 17
                    uint8_t SC_AdminPwRetryCount;          // Admin PIN retry count 1 byte // 18
                    uint8_t SD_Card_ManufacturingYear_u8;  // 1 byte // 19
                    uint8_t SD_Card_ManufacturingMonth_u8; // 1 byte // 20
                    uint16_t SD_Card_OEM_u16;              // 2 byte // 22
                    uint16_t SD_WriteSpeed_u16;            // in kbyte / sec 2 byte // 24
                    uint8_t SD_Card_Manufacturer_u8;       // 1 byte // 25

                    bool isValid() const { return true; }

                    std::string dissect() const {
                      std::stringstream ss;

                      print_to_ss((int) SendCounter_u8);
                      print_to_ss((int) SendDataType_u8);
                      print_to_ss((int) FollowBytesFlag_u8);
                      print_to_ss((int) SendSize_u8);

                      print_to_ss((int) FirmwareVersion_au8[0]);
                      print_to_ss((int) FirmwareVersion_au8[1]);
                      print_to_ss((int) FirmwareVersionInternal_u8);
                      print_to_ss((int) SD_Card_Size_u8);
                      print_to_ss( CPU_CardID_u32);
                      print_to_ss( SmartCardID_u32);
                      print_to_ss( SD_CardID_u32);
                      print_to_ss((int) SC_UserPwRetryCount);
                      print_to_ss((int) SC_AdminPwRetryCount);
                      print_to_ss((int) SD_Card_ManufacturingYear_u8);
                      print_to_ss((int) SD_Card_ManufacturingMonth_u8);
                      print_to_ss( SD_Card_OEM_u16);
                      print_to_ss( SD_WriteSpeed_u16);
                      print_to_ss((int) SD_Card_Manufacturer_u8);

                      ss << "_padding:\t"
                         << ::nitrokey::misc::hexdump((const char *) (_padding),
                                                      sizeof _padding);
                      return ss.str();
                    }

                  } __packed;

                typedef Transaction<command_id(), struct EmptyPayload, struct ResponsePayload>
                    CommandTransaction;
            };
        }
    }
}

#undef print_to_ss

#endif