#include <ArduinoJson.h>

String data;
String data2;
char* dataC[6];

void setup() {
  // Initialize serial port
  Serial.begin(115200);
  //data = "{'values': [['กุลนิภา เจี่ยยิ่งเจริญ1'],['กิตติคุณ สมภักดี'],['อธิราช สว่างวงค์'],['พรนัชชา นามฉิม'],['กุลนิภา เจี่ยยิ่งเจริญ']]}";
  // Allocate the JSON document
  //
  // Inside the brackets, 200 is the capacity of the memory pool in bytes.
  // Don't forget to change this value to match your JSON document.
  // Use arduinojson.org/v6/assistant to compute the capacity.
  //StaticJsonDocument<600> doc;

  // StaticJsonDocument<N> allocates memory on the stack, it can be
  // replaced by DynamicJsonDocument which allocates in the heap.
  //
   DynamicJsonDocument doc(500);

   Serial.println(sizeof(data));

   //data2 = data;

  // JSON input string.
  //
  // Using a char[], as shown here, enables the "zero-copy" mode. This mode uses
  // the minimal amount of memory because the JsonDocument stores pointers to
  // the input buffer.
  // If you use another type of input, ArduinoJson must copy the strings from
  // the input to the JsonDocument, so you need to increase the capacity of the
  // JsonDocument.
  char json[] = "{'sensor':'gps','time':1351824120,'data':[48.756080,2.302038]}";

  // Deserialize the JSON document
  //DeserializationError error = deserializeJson(doc, json);
  deserializeJson(doc, data);

  //Serial.println(data);
  //test(stringToChar(data));

  // Test if parsing succeeds.
  
  // Fetch values.
  //
  // Most of the time, you can rely on the implicit casts.
  // In other case, you can do doc["time"].as<long>();
  //const char* sensor = doc["sensor"];
  //long time = doc["time"];
  //double latitude = doc["data"][0];
  //double longitude = doc["data"][1];
  String name, nameResult;

  for(int i; i<5; i++){
    name = doc["values"][i].as<String>();
    name.replace("[","");
    name.replace("]","");
    name = name.substring(1);
    name = name.substring(0, name.length() - 1);
    dataC[i] = name.c_str();
    //Serial.println("Name: " + name);
  }
  Serial.println("Name: " + String(dataC[2]));
  // Print values.
  //Serial.println(sensor);
  //Serial.print("Name: ");
  //Serial.println(name);
  //Serial.println(latitude, 6);
  //Serial.println(longitude, 6);
}

void loop() {
  // not used in this example
}

char stringToChar(const String& inputString) {
    // Allocate memory for the char array (including null terminator)
    char* charArray = new char[inputString.length() + 1];
    char* cResult;

    // Copy the string content to the char array
    inputString.toCharArray(charArray, inputString.length() + 1);

    cResult = charArray;

    return cResult;
    delete[] charArray;
}

void test(char *a){
  Serial.println(a);
}