#include "FS.h"
#include "SD.h"
#include "SPI.h"
 int entryNumber= 0;

void setup() {
  Serial.begin(115200);
  
  if (!SD.begin(5)) {
    Serial.println("Card Mount Failed");
    return;
  }
  Serial.println("Card detected.....");
     // Write data to a text file
  writeFile("/data.csv","Time Stamp : Analog Values : Weight in lbs\n");
  }
  

void loop() {

  
  // Sample analog data and write to the file
  for (int i = 0; i < 3; i++) {
    int analogValue = analogRead(13); // Read analog value from pin A0
    entryNumber = entryNumber  + 1; // Entry number
    
    // Format data as a string
    String data = String(millis()/1000) + " : " + String(analogValue) + " : " + String(entryNumber) + "\n";
    
    // Write data to the file
    appendFile("/data.csv", data.c_str());
    
    delay(100); // Adjust delay as needed
  }
  readFile("/data.csv");
  // Nothing to do here
  delay(5000);
}

void appendFile(const char *path, const char *message) {
  File file = SD.open(path, FILE_APPEND);
  if (!file) {
    Serial.println("Failed to open file for appending");
    return;
  }
  
  if (file.print(message)) {
    Serial.println("Data appended successfully");
  } else {
    Serial.println("Append failed");
  }
  
  file.close();
}


void writeFile(const char *path, const char *message) {
  File file = SD.open(path, FILE_WRITE);
  if (!file) {
    Serial.println("Failed to open file for writing");
    return;
  }
  
  if (file.print(message)) {
    Serial.println("File written successfully");
  } else {
    Serial.println("Write failed");
  }
  
  file.close();
}
void readFile(const char *path) {
  File file = SD.open(path);
  if (!file) {
    Serial.println("Failed to open file for reading");
    return;
  }
  
  Serial.println("File contents:");
  
  // Read from the file until there's nothing left
  while (file.available()) {
    // Read a line from the file and print it
    String line = file.readStringUntil('\n');
    Serial.println(line);
  }
  
  file.close();
}