/**
 * @file trace.h
 * @author Pavel Brychta, http://www.xpablo.cz
 *
 * Copyright (c) 2016-19 Pavel Brychta. 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
 *
 */
#ifndef _TRACE_H_
#define _TRACE_H_

// Definice jednotlivych typu hlaseni do trasovani
#define TRACE_ERROR   0 // chybova zprava = cervena
#define TRACE_WARNING 1 // varovani - zluta
#define TRACE_INFO    2 // informacni zprava - zelena
#define TRACE_DEBUG   3 // ladici zprava - cerna
#define TRACE_DEBUGMORE 4 // mene zajimava ladici zprava - take cerna

#define TRACE_CHECK_INTERVAL 200 // interval [ms], po kterem je testovano odesilani stopare

#ifndef DONT_USE_TRACE

#include <Arduino.h>
#include <ESPAsyncWebServer.h>

/**
 * @brief Inicializace modulu
 */
void trace_init(void);

/**
 * @brief      Ziskani vypisu v JSON formatu
 *
 * @param      str   retezec udalosti v JSON
 */
void trace_dumpJSON(String &str);

/**
 * @brief      Vyprazdneni stopovaciho bufferu
 */
void trace_clear(void);

/**
 * @brief      Ukonceni prace stopare - vyprazdni buffer
 */
void trace_end(void);

/**
 * @brief      Ulozeni zpravy s obsahem z programove pameti (PROGMEM, F, ...)
 *
 * @param[in]  severity   Uroven - viz. TRACE_ERROR, TRACE_WARNING, ...
 * @param[in]  fmt        Formatovaci retezec vysledne zpravy. Je ulozeny v PROGMEM
 * @param[in]  <unnamed>  Parametry, ktere jsou dosazeny do formatovaciho retezce
 */
void trace_print(uint8_t severity, const __FlashStringHelper *fmt, ...);

/**
 * @brief      Ulozeni zpravy
 *
 * @param[in]  severity   Uroven - viz. TRACE_ERROR, TRACE_WARNING, ...
 * @param[in]  fmt        Formatovaci retezec vysledne zpravy.
 * @param[in]  <unnamed>  Parametry, ktere jsou dosazeny do formatovaciho retezce
 */
void trace_print(uint8_t severity, const char *fmt, ...);

/**
 * @brief      Registrace callback metody - je volana pri kazde zmene (zapisu) do stopare
 *
 * @param[in]  <unnamed>  Ukazatel na volanou metodu
 */
void trace_registermessagecb(void (*)(const char *msg));

/**
 * @brief      Pridani obsluhy stranky /trace do weboveho serveru
 *
 * @param      socket  webovy soket pro komunikaci
 */
void trace_addweb(AsyncWebSocket *socket);

/**
 * @brief      Periodicky tik modulem - osetruje odeslani novych dat v pripade modifikace
 */
void trace_poll();

void trace_printfunc(uint8_t severity, const char *func, const char *file, int line, const char *fmt, ...);

/**
 * @brief      Vypis oblasti pameti (dump)
 *
 * @param[in]  severity  Uroven - viz. TRACE_ERROR, TRACE_WARNING, ...
 * @param[in]  prefix    Prefix (text), ktery je uvedeny pred vlastnim vypisem pameti
 * @param      address   Adresa pocatku vypisu
 * @param[in]  size      Pocet vypisovanych bytu (POZOR!!! musi se vejit do jednoho radku stopare!!!)
 */
void trace_dump(uint8_t severity, const char *prefix, uint8_t *address, size_t size);

/**
 * @brief      Vypis oblasti pameti (dump)
 *
 * @param[in]  severity  Uroven - viz. TRACE_ERROR, TRACE_WARNING, ...
 * @param[in]  prefix    Prefix (text), ktery je uvedeny pred vlastnim vypisem pameti
 * @param      address   Adresa pocatku vypisu
 * @param[in]  size      Pocet vypisovanych bytu (POZOR!!! musi se vejit do jednoho radku stopare!!!)
 */
void trace_dump(uint8_t severity, const __FlashStringHelper *prefix, uint8_t *address, size_t size);

/**
 * @brief      Vynuceni odeslani obsahu bufferu (napr. pri obnovovani spojeni)
 */
void trace_forceupdate(void);

#define STRINGIFY(x) #x
#define TOSTRING(x) STRINGIFY(x)

#define TRACE(severity, ...) trace_print(severity, __VA_ARGS__)
#define TRACEFUNC(severity, ...) trace_printfunc(severity, __func__, __FILE__, TOSTRING(__LINE__), __VA_ARGS__)
#define TRACEDUMP(severity, prefix, address, size) trace_dump(severity, prefix, address, size)
#define TRACE_INIT trace_init()
#define TRACE_ADDWEB(srv) trace_addweb(srv)
#define TRACE_POLL trace_poll()
#define TRACE_FORCEUPDATE(a) trace_forceupdate()

#else // DONT_USE_TRACE
#define TRACE(...) ((void)0) // from assert.h "NOP" - http://stackoverflow.com/questions/9187628/c-empty-function-macros
#define TRACEFUNC(...) ((void)0)
#define TRACEDUMP(...) ((void)0)
#define TRACE_INIT ((void)0)
#define TRACE_ADDWEB(a) ((void)0)
#define TRACE_POLL ((void)0)
#define TRACE_FORCEUPDATE(a) ((void)0)
#endif // DONT_USE_TRACE

#endif // _TRACE_H_