#include <SPI.h>
#include <SD.h>
#include <LiquidCrystal_I2C.h>

File thisFile;
const int SD_CardSelect = 5;    // CS-Pin of the SD-Card
LiquidCrystal_I2C lcd(0x27, 20, 4);

void setup()
{
  lcd.init();
  lcd.backlight();

  SD_Setup(SD_CardSelect);

  //Testing
  SD_WriteFile("Data.txt", "TestData");
}

void loop(){}


bool SD_Setup(int sd_Connection)
{
  if(SD.begin(sd_Connection))
  {
    Serial.println("Connected to SD");

    Serial.println("Card Type: " + (String)SD.cardType());  // Prints 2
    
    return true;
  }
  else{
    Serial.println("Connection to SD failed. \n- Card Inserted?");
    return false;
  }
}


bool SD_WriteFile(String file, String data)
{
  Serial.println("File exists: " + (String)SD.exists(file));

  // Open File for Write
  Serial.println("OF 1");
  lcd.setCursor(0,0);
  lcd.println("OF 1");
  thisFile = SD.open(file,FILE_WRITE);
  Serial.println("OF 2");
  lcd.setCursor(10,0);
  lcd.println("OF 2");

  if(!thisFile)
  {
    lcd.setCursor(0,1);
    lcd.println("Can't open: " + file);
    Serial.println("Can't open File: " + file);
    return false;  // Return when File not opened
  }

  // Write to File
  Serial.println("WF 1");
  lcd.setCursor(0,2);
  lcd.println("WF 1");

  thisFile.print(data);
  
  Serial.println("WF 2");
  lcd.setCursor(10,2);
  lcd.println("WF 2");

  thisFile.close();
  lcd.setCursor(0,3);
  Serial.println("CF");
  return true;
}