#include "ST25DVSensor.h"
#define SerialPort      Serial

#if defined(ARDUINO_B_L4S5I_IOT01A)
// Pin definitions for board B-L4S5I_IOT01A
  #define GPO_PIN PE4
  #define LPD_PIN PE2
  #define SDA_PIN PB11
  #define SCL_PIN PB10
  #define WireNFC MyWire
  TwoWire MyWire(SDA_PIN, SCL_PIN);
  ST25DV st25dv(12, -1, &MyWire);
#else
  #define DEV_I2C         Wire
  ST25DV st25dv(12, -1, &DEV_I2C);
#endif
void clearNFCMemory() {
//ok so one issue was that the buffer was not being cleared before writing new data to the tag.
 st25dv.writeURI("", "", "");  // Write empty data to clear the memory
}
char *a[]= {
"C.pdf",  
"P.pdf",          
"B.pdf",
"L.pdf",       
"A.pdf"
};
/*
There is of course a solution that beats this, by loading a single actual webpage that handles getting random docs.
just let the arduino monitor N reads and Energy. Would save a bunch of over head.
*/
void setup() {
 // SerialPort.begin(115200);
st25dv.begin();
clearNFCMemory(); //
delay(1000);
}


void loop() {
  String urlBase = "10.1.0.250/";
  for (int i = 0; i < 5; i++) {
    String completeURL = urlBase + a[i];  // Combine base and filename
    char uriBuffer[128];                  
    completeURL.toCharArray(uriBuffer, sizeof(uriBuffer));  
    st25dv.writeURI(String(uriBuffer),"", "");  // Write the URI
    delay(10000);  // 10-sec delay
    clearNFCMemory();
  }
}