#include <ArduinoJson.h> // https://arduinojson.org/

// uncomment for debugging
#define DEBUG 1
#ifdef DEBUG
  #define DEBUG_PRINT(x)    Serial.print (x)
  #define DEBUG_PRINTDEC(x) Serial.print (x, DEC)
  #define DEBUG_PRINTLN(x)  Serial.println (x)
#else
  #define DEBUG_PRINT(x)
  #define DEBUG_PRINTDEC(x)
  #define DEBUG_PRINTLN(x) 
#endif


// setup
void setup() {
  // serial for debugging
  #ifdef DEBUG
    Serial.begin(115200);
  #endif

  // define JSON document
  StaticJsonDocument<1024> doc;

  // primjer JSON poruke
  char payload[] = "{\"msg\":[[\"3.9$\",1,25,1900,2,2,0],[\"22895\",1,25,2100,2,2,1],[\"Good morning\",1,25,2000,2,2,0],[\"Today is a sunny day\",1,25,2000,2,2,0],[\"Hi guys\",1,25,2000,2,2,0],[\"Cheers :)\",1,25,2000,2,2,0],[\"17:19\",1,25,31000,2,2,0]],\"ts\":\"2023-01-24 17:23:37\"}";

  // get payload length
  unsigned int length = strlen(payload);
  DeserializationError error = deserializeJson(doc, payload, length);

  if (error) {
    DEBUG_PRINTLN("deserializeJson() failed: ");
    DEBUG_PRINTLN(error.f_str());
    return;
  }

  // msg JSON array from JSON document
  JsonArray msg = doc["msg"];

  // open loop
  for (unsigned int i = 0; i < msg.size(); i++) {
    // get data
    const char* text = msg[i][0]; // "22895"
    int pos = msg[i][1]; // 1
    int speed = msg[i][2]; // 25
    int pause = msg[i][3]; // 2100
    int effect1 = msg[i][4]; // 2
    int effect2 = msg[i][5]; // 2
    int smallFont = msg[i][6]; // 1
    // print debug
    DEBUG_PRINT(text);
    DEBUG_PRINT(" ");
    DEBUG_PRINT(pos);
    DEBUG_PRINT(" ");
    DEBUG_PRINT(speed);
    DEBUG_PRINT(" ");
    DEBUG_PRINT(pause);
    DEBUG_PRINT(" ");
    DEBUG_PRINT(effect1);
    DEBUG_PRINT(" ");
    DEBUG_PRINT(effect2);
    DEBUG_PRINT(" ");
    DEBUG_PRINTLN(smallFont);
  }
}


// loop
void loop() {
}