/*
  config.h - ESP3D configuration class

  Copyright (c) 2014 Luc Lebosse. All rights reserved.

  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2.1 of the License, or (at your option) any later version.

  This library is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public
  License along with this library; if not, write to the Free Software
  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*/

//version and sources location
#define FW_VERSION "2.1.0.b39"
#define REPOSITORY "https://github.com/luc-github/ESP3D"

//Customize ESP3D ////////////////////////////////////////////////////////////////////////
#define ESP8266_MODEL_NAME "ESP8266"
#define ESP8266_MODEL_URL "http://espressif.com/en/products/esp8266/"
#define ESP32_MODEL_NAME "ESP32"
#define ESP32_MODEL_URL "https://www.espressif.com/en/products/hardware/esp-wroom-32/overview"
#define ESP_MODEL_NUMBER "ESP3D 2.1"
#define ESP_MANUFACTURER_NAME "Espressif Systems"
#define ESP_MANUFACTURER_URL "http://espressif.com"
//default name if no mac address is valid
#define ESP_DEFAULT_NAME "MYESP"
//if commented name will follow mac address 3 last digits
//like ESP_XXXXXX (eg:ESP_028E41) to avoid overlap if several ESP3D
#define ESP_HOST_NAME ESP_DEFAULT_NAME


//FEATURES - comment to disable //////////////////////////////////////////////////////////

//Do we use async webserver or not (currntly deprecated do not enable it yet)
//#define ASYNCWEBSERVER

//SERIAL_COMMAND_FEATURE: allow to send command by serial
#define SERIAL_COMMAND_FEATURE

//TCP_IP_DATA_FEATURE: allow to connect serial from TCP/IP
#define TCP_IP_DATA_FEATURE

//NOTIFICATION_FEATURE : allow to push notifications
#define NOTIFICATION_FEATURE

//MKS TFT WIFI support see Wiki for wiring
//#define MKS_TFT_FEATURE

//MDNS_FEATURE: this feature allow  type the name defined
//in web browser by default: http:\\esp8266.local and connect
#define MDNS_FEATURE

//SSDD_FEATURE: this feature is a discovery protocol, supported on Windows out of the box
#define SSDP_FEATURE

//NETBIOS_FEATURE: this feature is a discovery protocol, supported on Windows out of the box
#define NETBIOS_FEATURE

//CAPTIVE_PORTAL_FEATURE: In SoftAP redirect all unknow call to main page
#define CAPTIVE_PORTAL_FEATURE

//WEB_UPDATE_FEATURE: allow to flash fw using web UI
#define WEB_UPDATE_FEATURE

//RECOVERY_FEATURE: allow to use GPIO2 pin as hardware reset for EEPROM, add 8s to boot time to let user to jump GPIO2 to GND
//#define RECOVERY_FEATURE

//DIRECT_PIN_FEATURE: allow to access pin using ESP201 command
#define DIRECT_PIN_FEATURE

//ESP_OLED_FEATURE: allow oled screen output
//#define ESP_OLED_FEATURE

//DHT_FEATURE: send update of temperature / humidity based on DHT 11/22
//#define DHT_FEATURE

//AUTHENTICATION_FEATURE: protect pages by login password
//#define AUTHENTICATION_FEATURE

//WS_DATA_FEATURE: allow to connect serial from Websocket
#define WS_DATA_FEATURE

//TIMESTAMP_FEATURE: Time stamp feature on direct SD  files
//#define TIMESTAMP_FEATURE

//Extra features /////////////////////////////////////////////////////////////////////////

//Workaround for Marlin 2.X coldstart
//#define DISABLE_CONNECTING_MSG

//Serial rx buffer size is 256 but can be extended
#define SERIAL_RX_BUFFER_SIZE 512

//Serial Parameters
#define ESP_SERIAL_PARAM SERIAL_8N1

//which serial ESP use to communicate to printer (ESP32 has 3 serials available, ESP8266 only one)
//Uncomment one only
#define USE_SERIAL_0
//For ESP32 Only
//#define USE_SERIAL_1
//#define USE_SERIAL_2

//Pins Definition ////////////////////////////////////////////////////////////////////////
//-1 means use default pins of your board what ever the serial you choose
#define ESP_RX_PIN -1
#define ESP_TX_PIN -1

#ifdef RECOVERY_FEATURE
//pin used to reset setting
#define RESET_CONFIG_PIN 2
#endif

#ifdef DHT_FEATURE
#define ESP_DHT_PIN 2
#endif

//Pins where the screen is connected
#ifdef ESP_OLED_FEATURE
#define OLED_DISPLAY_SSD1306  // OLED Display Type: SSD1306(OLED_DISPLAY_SSD1306) / SH1106(OLED_DISPLAY_SH1106), comment this line out to disable oled
#define OLED_PIN_SDA  4  //5 //SDA;  // i2c SDA Pin
#define OLED_PIN_SCL  15  //4 //SCL;  // i2c SCL Pin
#define OLED_ADDR	0x3c
#define HELTEC_EMBEDDED_PIN 16 //0 to disable
#define OLED_FLIP_VERTICALY 1 //0 to disable
#endif


//Supported FW /////////////////////////////////////////////////////////////
#define UNKNOWN_FW 0
#define REPETIER4DV	1
#define MARLIN		2
#define MARLINKIMBRA		3
#define SMOOTHIEWARE	4
#define REPETIER		5
#define GRBL		6
#define MAX_FW_ID 6

//Do not Edit after this line //////////////////////////////////////////////

//DEBUG Flag do not do this when connected to printer !!!
//be noted all upload may failed if enabled
//#define DEBUG_ESP3D
//#define DEBUG_OUTPUT_SPIFFS
//#define DEBUG_OUTPUT_SERIAL
//#define DEBUG_OUTPUT_TCP

//Sanity check
#ifndef SDCARD_FEATURE
#ifdef TIMESTAMP_FEATURE
#undef TIMESTAMP_FEATURE
#endif
#endif

#if defined(ASYNCWEBSERVER)
#define ESP_USE_ASYNC true
#else
#define ESP_USE_ASYNC false
#endif

//number of clients allowed to use data port at once
#define MAX_SRV_CLIENTS 1

#ifdef ARDUINO_ARCH_ESP32
#include "FS.h"
#include "SPIFFS.h"
using fs::File;
#define WIFI_NONE_SLEEP WIFI_PS_NONE
#define WIFI_LIGHT_SLEEP WIFI_PS_MIN_MODEM
#define WIFI_MODEM_SLEEP WIFI_PS_MAX_MODEM
#define WIFI_PHY_MODE_11B WIFI_PROTOCOL_11B
#define WIFI_PHY_MODE_11G WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G
#define WIFI_PHY_MODE_11N WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N
#define AUTH_OPEN WIFI_AUTH_OPEN
#define AUTH_WEP WIFI_AUTH_WEP
#define AUTH_WPA_PSK WIFI_AUTH_WPA_PSK
#define AUTH_WPA2_PSK WIFI_AUTH_WPA2_PSK
#define AUTH_WPA_WPA2_PSK WIFI_AUTH_WPA_WPA2_PSK
#define ENC_TYPE_NONE AUTH_OPEN
#define FS_FILE File
#define FS_DIR File
#define SD_FILE_READ FILE_READ
#define SPIFFS_FILE_READ FILE_READ
#define SD_FILE_WRITE FILE_WRITE
#define SPIFFS_FILE_WRITE FILE_WRITE
#define WIFI_EVENT_STAMODE_CONNECTED SYSTEM_EVENT_STA_CONNECTED
#define WIFI_EVENT_STAMODE_DISCONNECTED SYSTEM_EVENT_STA_DISCONNECTED
#define WIFI_EVENT_STAMODE_GOT_IP SYSTEM_EVENT_STA_GOT_IP
#define WIFI_EVENT_SOFTAPMODE_STACONNECTED SYSTEM_EVENT_AP_STACONNECTED
#else
#define FS_DIR fs::Dir
#define FS_FILE fs::File
#define SD_FILE_READ FILE_READ
#define SPIFFS_FILE_READ "r"
#define SD_FILE_WRITE FILE_WRITE
#define SPIFFS_FILE_WRITE "w"
#endif



//WEBHOST_SDCARD_FEATURE : to use SDCard to host webpages
//NOT YET IMPLEMENTED!!! Keep it as TODO
//#define WEBHOST_SDCARD_FEATURE

#ifdef DEBUG_ESP3D
#ifdef DEBUG_OUTPUT_SPIFFS
#ifndef FS_NO_GLOBALS
#define FS_NO_GLOBALS
#endif
#include <FS.h>
#define DEBUG_PIPE NO_PIPE
#define LOG(string) { FS_FILE logfile = SPIFFS.open("/log.txt", "a+");logfile.print(string);logfile.close();}
#endif

#ifdef DEBUG_OUTPUT_SERIAL
#define DEBUG_PIPE SERIAL_PIPE
#define LOG(string) {Serial.print(string);}
#endif
#ifdef DEBUG_OUTPUT_TCP
#include "espcom.h"
#define LOG(string) {ESPCOM::send2TCP(string, false);}
#define DEBUG_PIPE TCP_PIPE
#endif
#else
#define LOG(string) {}
#define DEBUG_PIPE NO_PIPE
#endif

#define NOLOG(string) {}

#ifndef CONFIG_h
#define CONFIG_h

#include <Arduino.h>
#ifdef ARDUINO_ARCH_ESP8266
extern "C" {
#include "user_interface.h"
}
#else

#endif
#include "wificonf.h"

typedef enum {
    UPLOAD_STATUS_NONE = 0,
    UPLOAD_STATUS_FAILED = 1,
    UPLOAD_STATUS_CANCELLED = 2,
    UPLOAD_STATUS_SUCCESSFUL = 3,
    UPLOAD_STATUS_ONGOING  = 4
} upload_status_type;

typedef enum {
    NO_PIPE = 0,
    SERIAL_PIPE = 2,
    SERIAL1_PIPE = 3,
    SERIAL2_PIPE = 4,
#ifdef TCP_IP_DATA_FEATURE
    TCP_PIPE = 5,
#endif
#ifdef WS_DATA_FEATURE
    WS_PIPE = 6,
#endif
#ifdef ESP_OLED_FEATURE
    OLED_PIPE = 7,
#endif
    WEB_PIPE = 8,
    PRINTER_PIPE = 9
} tpipe;

#define DEFAULT_PRINTER_PIPE SERIAL_PIPE

typedef enum {
    LEVEL_GUEST = 0,
    LEVEL_USER = 1,
    LEVEL_ADMIN = 2
} level_authenticate_type;


#define    NO_SD 0
#define    SD_DIRECTORY 1
#define    EXT_DIRECTORY 2


//flags
#define AP_MODE			1
#define CLIENT_MODE		2
#define DHCP_MODE		1
#define STATIC_IP_MODE		2

//position in EEPROM
//AP mode = 1; Station client mode = 2
#define EP_WIFI_MODE			0    //1 byte = flag
#define EP_STA_SSID				1    //33 bytes 32+1 = string  ; warning does not support multibyte char like chinese
#define EP_STA_PASSWORD			34   //65 bytes 64 +1 = string ;warning does not support multibyte char like chinese
#define EP_STA_IP_MODE			99   //1 byte = flag
#define EP_STA_IP_VALUE			100  //4  bytes xxx.xxx.xxx.xxx
#define EP_STA_MASK_VALUE			104  //4  bytes xxx.xxx.xxx.xxx
#define EP_STA_GATEWAY_VALUE			108  //4  bytes xxx.xxx.xxx.xxx
#define EP_BAUD_RATE			112  //4  bytes = int
#define EP_STA_PHY_MODE			116  //1 byte = flag
#define EP_SLEEP_MODE			117  //1 byte = flag
#define EP_CHANNEL			118 //1 byte = flag
#define EP_AUTH_TYPE			119 //1 byte = flag
#define EP_SSID_VISIBLE			120 //1 byte = flag
#define EP_WEB_PORT			121 //4  bytes = int
#define EP_DATA_PORT			125 //4  bytes = int
#define EP_OUTPUT_FLAG			129 //1  bytes = flag
#define EP_HOSTNAME				130//33 bytes 32+1 = string  ; warning does not support multibyte char like chinese
#define EP_DHT_INTERVAL		    164//4  bytes = int
#define ESP_NOTIFICATION_TYPE   168     //1 byte = flag
#define ESP_AUTO_NOTIFICATION   170//1  bytes = flag
#define EP_FREE_BYTE1		    171//1  bytes = flag
#define EP_FREE_INT3		    172//4  bytes = int
#define EP_ADMIN_PWD		    176//21  bytes 20+1 = string  ; warning does not support multibyte char like chinese
#define EP_USER_PWD		    197//21  bytes 20+1 = string  ; warning does not support multibyte char like chinese
#define EP_AP_SSID				218    //33 bytes 32+1 = string  ; warning does not support multibyte char like chinese
#define EP_AP_PASSWORD			251   //65 bytes 64 +1 = string ;warning does not support multibyte char like chinese
#define EP_AP_IP_VALUE			316  //4  bytes xxx.xxx.xxx.xxx
#define EP_AP_MASK_VALUE			320  //4  bytes xxx.xxx.xxx.xxx
#define EP_AP_GATEWAY_VALUE			324  //4  bytes xxx.xxx.xxx.xxx
#define EP_AP_IP_MODE			329   //1 byte = flag
#define EP_AP_PHY_MODE			330  //1 byte = flag
#define EP_SD_SPEED_DIV			331  //1 byte = flag
#define ESP_NOTIFICATION_TOKEN1 332    //64 bytes 63+1 = string  ; warning does not support multibyte char like chinese
#define ESP_NOTIFICATION_TOKEN2 396    //64 bytes 63+1 = string  ; warning does not support multibyte char like chinese
#define EP_DHT_TYPE		460 //1  bytes = flag
#define EP_TARGET_FW		461 //1  bytes = flag
#define EP_TIMEZONE         462//1  bytes = flag
#define EP_TIME_ISDST       463//1  bytes = flag
#define EP_TIME_SERVER1 464//129 bytes 128+1 = string  ; warning does not support multibyte char like chinese  
#define EP_TIME_SERVER2  593 //129 bytes 128+1 = string  ; warning does not support multibyte char like chinese
#define EP_TIME_SERVER3  722 //129 bytes 128+1 = string  ; warning does not support multibyte char like chinese
#define EP_IS_DIRECT_SD   850//1  bytes = flag
#define EP_PRIMARY_SD   851//1  bytes = flag
#define EP_SECONDARY_SD   852//1  bytes = flag
#define EP_DIRECT_SD_CHECK   853//1  bytes = flag
#define EP_SD_CHECK_UPDATE_AT_BOOT   854//1  bytes = flag
#define ESP_NOTIFICATION_SETTINGS 855//128 bytes 127+1 = string  ; warning does not support multibyte char like chinese

#define EP_EEPROM_VERSION 1017// 6 bytes = ESP3D<V on one byte>

#define LAST_EEPROM_ADDRESS 983

//default values
#define DEFAULT_WIFI_MODE			AP_MODE
const char DEFAULT_AP_SSID []  PROGMEM =		"ESP3D";
const char DEFAULT_AP_PASSWORD [] PROGMEM =	"12345678";
const char DEFAULT_STA_SSID []  PROGMEM =		"ESP3D";
const char DEFAULT_STA_PASSWORD [] PROGMEM =	"12345678";
const byte DEFAULT_STA_IP_MODE  = 				DHCP_MODE;
const byte DEFAULT_AP_IP_MODE = 				STATIC_IP_MODE;
const byte DEFAULT_IP_VALUE[]   =	        {192, 168, 0, 1};
const byte DEFAULT_MASK_VALUE[]  =	        {255, 255, 255, 0};
#define DEFAULT_GATEWAY_VALUE   	        DEFAULT_IP_VALUE
const long DEFAULT_BAUD_RATE =			115200;
#define DEFAULT_PHY_MODE			WIFI_PHY_MODE_11G
#define DEFAULT_SLEEP_MODE			WIFI_MODEM_SLEEP
#define DEFAULT_CHANNEL				11
#define DEFAULT_AUTH_TYPE			AUTH_WPA_PSK
#define DEFAULT_SSID_VISIBLE			1
#define DEFAULT_MAX_CONNECTIONS			4
#define DEFAULT_BEACON_INTERVAL			100
const int DEFAULT_WEB_PORT =			80;
const int DEFAULT_DATA_PORT =			8888;
const char DEFAULT_ADMIN_PWD []  PROGMEM =	"admin";
const char DEFAULT_USER_PWD []  PROGMEM =	"user";
const char DEFAULT_ADMIN_LOGIN []  PROGMEM =	"admin";
const char DEFAULT_USER_LOGIN []  PROGMEM =	"user";
const char DEFAULT_TIME_SERVER1 []  PROGMEM =	"1.pool.ntp.org";
const char DEFAULT_TIME_SERVER2 []  PROGMEM =	"2.pool.ntp.org";
const char DEFAULT_TIME_SERVER3 []  PROGMEM =	"0.pool.ntp.org";
#define DEFAULT_TIME_ZONE			0
#define DEFAULT_TIME_DST			0
#define DEFAULT_PRIMARY_SD  2
#define DEFAULT_SECONDARY_SD 1
#define DEFAULT_DIRECT_SD_CHECK 0
#define DEFAULT_SD_CHECK_UPDATE_AT_BOOT 1
#define DEFAULT_OUTPUT_FLAG 0
#define DEFAULT_DHT_TYPE 255
const int DEFAULT_DHT_INTERVAL = 30;


#define MIN_NOTIFICATION_TOKEN_LENGTH 0
#define MIN_NOTIFICATION_SETTINGS_LENGTH 0
#define MAX_NOTIFICATION_TOKEN_LENGTH 63
#define MAX_NOTIFICATION_SETTINGS_LENGTH 127

#define DEFAULT_NOTIFICATION_TYPE 0
#define DEFAULT_NOTIFICATION_TOKEN1 ""
#define DEFAULT_NOTIFICATION_TOKEN2 ""
#define DEFAULT_NOTIFICATION_SETTINGS ""
#define DEFAULT_AUTO_NOTIFICATION_STATE 1
#define NOTIFICATION_ESP_ONLINE "Hi, %ESP_NAME% is now online at %ESP_IP%"

//Notifications
#define ESP_PUSHOVER_NOTIFICATION	1
#define ESP_EMAIL_NOTIFICATION		2
#define ESP_LINE_NOTIFICATION		3

#ifdef SDCARD_FEATURE
#define DEFAULT_IS_DIRECT_SD 1
#else
#define DEFAULT_IS_DIRECT_SD 0
#endif

//SD Card reader speed
//possible values are :SPI_FULL_SPEED, SPI_DIV3_SPEED,
//SPI_HALF_SPEED, SPI_DIV6_SPEED, SPI_QUARTER_SPEED,
//SPI_EIGHTH_SPEED, SPI_SIXTEENTH_SPEED
//Decrease if reader give error
#ifdef ARDUINO_ARCH_ESP8266
#define DEFAULT_SDREADER_SPEED 2
#else
#define DEFAULT_SDREADER_SPEED 4
#endif

const uint16_t Setting[][2] = {
    {EP_WIFI_MODE, LEVEL_ADMIN},//0
    {EP_STA_SSID, LEVEL_ADMIN},//1
    {EP_STA_PASSWORD, LEVEL_ADMIN},//2
    {EP_STA_IP_MODE, LEVEL_ADMIN},//3
    {EP_STA_IP_VALUE, LEVEL_ADMIN},//4
    {EP_STA_MASK_VALUE, LEVEL_ADMIN},//5
    {EP_STA_GATEWAY_VALUE, LEVEL_ADMIN},//6
    {EP_BAUD_RATE, LEVEL_ADMIN},//7
    {EP_STA_PHY_MODE, LEVEL_ADMIN},//8
    {EP_SLEEP_MODE, LEVEL_ADMIN},//9
    {EP_CHANNEL, LEVEL_ADMIN},//10
    {EP_AUTH_TYPE, LEVEL_ADMIN},//11
    {EP_SSID_VISIBLE, LEVEL_ADMIN},//12
    {EP_WEB_PORT, LEVEL_ADMIN},//13
    {EP_DATA_PORT, LEVEL_ADMIN},//14
    {EP_HOSTNAME, LEVEL_ADMIN},//15
    {EP_ADMIN_PWD, LEVEL_ADMIN},//16
    {EP_USER_PWD, LEVEL_USER},//17
    {EP_AP_SSID, LEVEL_ADMIN},//18
    {EP_AP_PASSWORD, LEVEL_ADMIN},//19
    {EP_AP_IP_VALUE, LEVEL_ADMIN},//20
    {EP_AP_MASK_VALUE, LEVEL_ADMIN},//21
    {EP_AP_GATEWAY_VALUE, LEVEL_ADMIN},//22
    {EP_AP_IP_MODE, LEVEL_ADMIN},//23
    {EP_AP_PHY_MODE, LEVEL_ADMIN},//24
    {EP_TARGET_FW, LEVEL_USER},//25
    {EP_TIMEZONE, LEVEL_USER},//26
    {EP_TIME_ISDST, LEVEL_USER},//27
    {EP_TIME_SERVER1, LEVEL_USER},//28
    {EP_TIME_SERVER2, LEVEL_USER},//29
    {EP_TIME_SERVER3, LEVEL_USER},//30
    {EP_IS_DIRECT_SD, LEVEL_USER},//31
    {EP_PRIMARY_SD, LEVEL_USER},//32
    {EP_SECONDARY_SD, LEVEL_USER},//33
    {EP_DIRECT_SD_CHECK, LEVEL_USER}, //34
    {EP_SD_CHECK_UPDATE_AT_BOOT, LEVEL_USER},//35
    {EP_OUTPUT_FLAG, LEVEL_USER},//36
    {EP_DHT_INTERVAL, LEVEL_USER},//37
    {EP_DHT_TYPE, LEVEL_USER},//38
    {EP_SD_SPEED_DIV, LEVEL_USER}//39
};
#define AUTH_ENTRY_NB 40

#define FLAG_BLOCK_M117 0x01
#define FLAG_BLOCK_OLED 0x02
#define FLAG_BLOCK_SERIAL 0x04
#define FLAG_BLOCK_WSOCKET 0x08
#define FLAG_BLOCK_TCP 0x010

//values
#define DEFAULT_MAX_WEB_PORT			65001
#define DEFAULT_MIN_WEB_PORT			1
#define DEFAULT_MAX_DATA_PORT			65001
#define DEFAULT_MIN_DATA_PORT			1

#define MAX_TRY 2000

//sizes
#define EEPROM_SIZE				1024 //max is 1024
#define MAX_SSID_LENGTH				32
#define MIN_SSID_LENGTH				1
#define MAX_PASSWORD_LENGTH 			64
//min size of password is 0 or upper than 8 char
//so let set min is 0
#define MIN_PASSWORD_LENGTH 			0
#define MAX_LOCAL_PASSWORD_LENGTH 			16
#define MIN_LOCAL_PASSWORD_LENGTH 			1
#define MAX_DATA_LENGTH				128
#define MIN_DATA_LENGTH				0
#define IP_LENGTH 				4
#define INTEGER_LENGTH 				4
#define MAX_HOSTNAME_LENGTH		32
#define MIN_HOSTNAME_LENGTH		1
#define WL_MAC_ADDR_LENGTH 6

//EEPROM Version
#define EEPROM_V0 0
#define EEPROM_V1 1
#define EEPROM_V2 2

#define EEPROM_CURRENT_VERSION EEPROM_V2


#if defined(ASYNCWEBSERVER)
class AsyncResponseStream;
typedef  AsyncResponseStream ESPResponseStream;
#else
class ESPResponseStream
{
public:
    bool header_sent;
    String buffer_web;
    ESPResponseStream()
    {
        header_sent=false;
    };
};
#endif

class CONFIG
{
public:
    static void wait (uint32_t milliseconds);
    static void wdtFeed();
    static byte output_flag;
#ifdef DHT_FEATURE
    static byte DHT_type;
    static int DHT_interval;
    static void InitDHT(bool refresh = false);
#endif
    static bool is_com_enabled;
    static bool is_locked(byte flag);
    static bool is_direct_sd;
    static bool read_string (int pos, char byte_buffer[], int size_max);
    static bool read_string (int pos, String & sbuffer, int size_max);
    static bool read_buffer (int pos, byte byte_buffer[], int size_buffer);
    static bool read_byte (int pos, byte * value);
    static bool write_string (int pos, const char * byte_buffer);
    static bool write_string (int pos, const __FlashStringHelper *str);
    static bool write_buffer (int pos, const byte * byte_buffer, int size_buffer);
    static bool write_byte (int pos, const byte value);
    static bool reset_config();
    static void print_config (tpipe output, bool plaintext, ESPResponseStream  *espresponse = NULL);
    static bool SetFirmwareTarget (uint8_t fw);
    static void InitFirmwareTarget();
    static void InitOutput();
    static void InitDirectSD();
    static void InitPins();
    static bool InitBaudrate(long value = 0);
    static bool DisableSerial();
    static bool InitExternalPorts();
    static uint8_t GetFirmwareTarget();
    static const char* GetFirmwareTargetName();
    static const char* GetFirmwareTargetShortName();
    static uint8_t get_EEPROM_version();
    static bool set_EEPROM_version(uint8_t v);
    static bool adjust_EEPROM_settings();
    static bool isHostnameValid (const char * hostname);
    static bool isSSIDValid (const char * ssid);
    static bool isPasswordValid (const char * password);
    static bool isLocalPasswordValid (const char * password);
    static bool isIPValid (const char * IP);
    static char * intTostr (int value);
    static String formatBytes (uint64_t bytes);
    static char * mac2str (uint8_t mac [WL_MAC_ADDR_LENGTH]);
    static byte split_ip (const char * ptr, byte * part);
    static void esp_restart (bool async = false);
#if defined(TIMESTAMP_FEATURE)
    static void init_time_client();
#endif
private:
    static uint8_t FirmwareTarget;
};



#endif
