#include <SPI.h>
#include "SdFat.h"
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27,20,4);
const uint8_t chipSelect = SS;
String b="";
int counter=0;
int usedcounter=1;
int wrtcounter=0;
int coincounter=0;
int coinwrtcounter=0;
int coinusedcounter=0;
String inString;
String b2="";
int counter2=0;
//int usedcounter2=usedcounter;
//int wrtcounter2=0;
String inString2;
SdFat SD;
File myFile;
ArduinoOutStream cout(Serial);
int a =0;
int c =0;
int e = 6;
int r = 8;
int i = 7;
int o =0;
int o1=0;
int led1hr = 1;
int led2hr = 2;
int led3hr = 3;
int led5hr = 4;
int led1d = 5;
int led1m = 6;
int buttoncounter=0;
#define error(s) SD.errorHalt(F(s))
void r1hr_get_code() {  
  char line[25];
  int n;  
  SdFile rdfile("code1hr.txt", O_READ);
  if (!rdfile.isOpen()) {
    error("error reading code1hr.txt file");}
  Serial.println(F("Selecting Specific Voucher For 1hr"));
  while ((n = rdfile.fgets(line, sizeof(line))) > 0) {
    if (line[n - 1] == '\n') {
              counter++;
          if (counter == usedcounter){
               b=line;}    }}
    counter = 0;
    Serial.println(b);
  rdfile.close(); }
void r1hr_get_counter() {  
   char line[25];
  int n;
  Serial.println(F("Getting Counter For 1hr"));
  SdFile rdfile("ctr1hr.txt", O_READ);
  if (!rdfile.isOpen()) {
    error("error reading ctr1hr.txt");}
  while ((n = rdfile.fgets(line, sizeof(line))) > 0) {
    if (line[n - 1] == '\n') {
 usedcounter=0;
inString = line;
usedcounter = (inString.toInt());
    }
    }
   counter = 0;
   rdfile.close();  }
void r1hr_write_counter(){
  Serial.println(F("Writing Counter For 1hr"));
  myFile = SD.open("ctr1hr.txt", FILE_WRITE);
  if (myFile) {
    wrtcounter = usedcounter+5;
  myFile.println(wrtcounter);
    myFile.close(); } }
void r3hr_get_code() {  
  char line[25];
  int n;
  SdFile rdfile("code2hr.txt", O_READ);
  if (!rdfile.isOpen()) {
    error("error reading code2hr.txt file");}
  Serial.println(F("Selecting Specific Voucher For 2hr"));
  while ((n = rdfile.fgets(line, sizeof(line))) > 0) {
    if (line[n - 1] == '\n') {
              counter++;
          if (counter == usedcounter){
               b=line;                 }    }}
    counter = 0;
     Serial.println(b);
  rdfile.close(); }
void r3hr_get_counter() {  
   char line[25];
  int n;
  Serial.println(F("Getting Counter For 2hr"));
  SdFile rdfile("ctr2hr.txt", O_READ);
  if (!rdfile.isOpen()) {
    error("error reading ctr2hr.txt"); }
  while ((n = rdfile.fgets(line, sizeof(line))) > 0) {
    if (line[n - 1] == '\n') {
 usedcounter=0;
inString = line;
usedcounter = (inString.toInt());    }  }
   counter = 0;
   Serial.println(usedcounter);
   rdfile.close();  }
void r3hr_write_counter(){
  Serial.println(F("Writing Counter For 2hr"));
  myFile = SD.open("ctr2hr.txt", FILE_WRITE);
  if (myFile) {
    wrtcounter = usedcounter+1;
  myFile.println(wrtcounter);
    myFile.close();}
    Serial.println(wrtcounter);}
void r12hr_get_code() {  
  char line[25];
  int n;
  SdFile rdfile("code5hr.txt", O_READ);
  if (!rdfile.isOpen()) {
    error("error reading code5hr.txt file"); }
  Serial.println(F("Selecting Specific Voucher For 5hr"));
  while ((n = rdfile.fgets(line, sizeof(line))) > 0) {
    if (line[n - 1] == '\n') {
              counter++;
          if (counter == usedcounter){
               b=line;                }    } }
    counter = 0;
     Serial.println(b);
  rdfile.close(); }
void r12hr_get_counter() {  
   char line[25];
  int n;
  Serial.println(F("Getting Counter For 5hr"));
  SdFile rdfile("ctr5hr.txt", O_READ);
  if (!rdfile.isOpen()) {
    error("error reading ctr5hr.txt"); }
  while ((n = rdfile.fgets(line, sizeof(line))) > 0) {
    if (line[n - 1] == '\n') {
 usedcounter=0;
inString = line;
usedcounter = (inString.toInt());    } }
   counter = 0;
      Serial.println(usedcounter);
   rdfile.close();  }
void r12hr_write_counter(){
  Serial.println(F("Writing Counter For 5hr"));
  myFile = SD.open("ctr5hr.txt", FILE_WRITE);
  if (myFile) {
    wrtcounter = usedcounter+1;
  myFile.println(wrtcounter);
    myFile.close();}
    Serial.println(wrtcounter);}
void r1day_get_code() {  
  char line[25];
  int n;
  SdFile rdfile("code1d.txt", O_READ);
  if (!rdfile.isOpen()) {
    error("error reading code1d.txt file");}
  Serial.println(F("Selecting Specific Voucher For 1day"));
  while ((n = rdfile.fgets(line, sizeof(line))) > 0) {
    if (line[n - 1] == '\n') {
              counter++;
          if (counter == usedcounter){
               b=line;}    }}
    counter = 0;
     Serial.println(b);
  rdfile.close(); }
void r1day_get_counter() {  
   char line[25];
  int n;
  Serial.println(F("Getting Counter For 1day"));
  SdFile rdfile("ctr1d.txt", O_READ);
  if (!rdfile.isOpen()) {
    error("error reading ctr1d.txt"); }
  while ((n = rdfile.fgets(line, sizeof(line))) > 0) {
    if (line[n - 1] == '\n') {
 usedcounter=0;
inString = line;
usedcounter = (inString.toInt());    } }
   counter = 0;
      Serial.println(usedcounter);
   rdfile.close();  }
void r1day_write_counter(){
  Serial.println(F("Writing Counter For 1day"));
  myFile = SD.open("ctr1d.txt", FILE_WRITE);
  if (myFile) {
    wrtcounter = usedcounter+1;
  myFile.println(wrtcounter);
    myFile.close();}
  Serial.println(wrtcounter);}
void coin_get_counter() {  
   char line[25];
  int n;
  Serial.println(F("Getting Counter for insertedcoin.txt"));
  SdFile rdfile("insertedcoin.txt", O_READ);
  if (!rdfile.isOpen()) {
    error("error reading insertedcoin.txt");}
  while ((n = rdfile.fgets(line, sizeof(line))) > 0) {
    if (line[n - 1] == '\n') {
 coinusedcounter=0;
inString = line;
coinusedcounter = (inString.toInt());     } }
   coincounter = 0;
      Serial.println(usedcounter);
   rdfile.close();  }
void coin_write_counter(){
  Serial.println(F("Writing Counter For insertedcoin.txt"));
  myFile = SD.open("insertedcoin.txt", FILE_WRITE);
  if (myFile) {
    coinwrtcounter = coinusedcounter+1;
    Serial.println(F("TOTAL COIN"));
   Serial.println(coinwrtcounter);
  myFile.println(coinwrtcounter);
    myFile.close();  } }
void setup(void) {    
  Serial.begin(9600);
  pinMode(r, INPUT_PULLUP);
  pinMode(i, INPUT_PULLUP);
  pinMode(led1hr, OUTPUT);
  while (!Serial) {
    SysCall::yield();}
  if (!SD.begin(chipSelect, SD_SCK_MHZ(50))) {
    SD.initErrorHalt();}
 lcd.init();
  lcd.backlight();
          lcd.begin(20, 4);
     lcd.setCursor(0,0);
     lcd.print(F("   Welcome to "));
     lcd.setCursor(0, 1);
     lcd.print(F("<<<AGI Portal>>>"));
     delay (5000);
     lcd.clear();
     lcd.setCursor(1,0);
     lcd.print(F("Insert Coin"));
     lcd.setCursor(3,1);
     lcd.print(F("2 Get Code"));
 }
void loop() {        
   int button = digitalRead(r);
        int button3 = digitalRead(i);  
    if (button == LOW) {
        coin_get_counter();
    coin_write_counter();
      Serial.println(F("5 peso detected"));
      a = a +1;
      lcd.clear();
    lcd.setCursor(0, 0);
   lcd.print(F("CODE  FOR  1hr"));
          lcd.setCursor(0, 1);
        lcd.print(F("Coin = Php"));
        lcd.setCursor(12, 1);
    lcd.print(a);
   if (a >= 10){
     lcd.setCursor(0, 0);
      lcd.print(F("CODE    FOR   2hrs"));
       lcd.setCursor(0, 1);
         lcd.print(F("Coins = Php"));
        lcd.setCursor(12, 1);
    lcd.print(a); }
     if (a >= 20){
     lcd.setCursor(0, 0);
      lcd.print(F("CODE    FOR  5hrs"));
       lcd.setCursor(0, 1);
         lcd.print(F("Coins = Php"));
        lcd.setCursor(12, 1);
    lcd.print(a); }
     if (a >= 35){
     lcd.setCursor(0, 0);
      lcd.print(F("CODE    FOR   1day"));
       lcd.setCursor(0, 1);
       lcd.print(F("Coins = Php"));
        lcd.setCursor(12, 1);
    lcd.print(a);
   }    }
if (buttoncounter == 0){
    if (button3 == LOW) {
      Serial.println(F("show code button pressed"));
         lcd.clear();  
  if (a==0){
        lcd.setCursor(0, 0);
        lcd.print(F(" Please Insert "));
        lcd.setCursor(0, 1);
        lcd.print(F("1,5,10 Ph Coins"));
      }
      if(a >=5 and a <=9){
    r1hr_get_counter();
    r1hr_write_counter();
    r1hr_get_code();
        c= a - 5;
        lcd.setCursor(0, 0);
  lcd.print(F("CODE  :"));
         lcd.setCursor(10, 0);
  lcd.print(b);
      lcd.setCursor(0, 1);
      lcd.print(F("Copy and Sign-in"));
  delay(5000);
  buttoncounter=2;
   lcd.setCursor(0, 1);
      lcd.print(F("Press CLR Button"));         }
            if(a >=10 and a <=19){
    r3hr_get_counter();
    r3hr_write_counter();
    r3hr_get_code();
        c= a - 10;
        lcd.setCursor(0, 0);
  lcd.print(F("CODE :"));
         lcd.setCursor(10, 0);
  lcd.print(b);
      lcd.setCursor(0, 1);
      lcd.print(F("Copy and Sign-in"));
  delay(5000);
  buttoncounter=2;
     lcd.setCursor(0, 1);
      lcd.print(F("Press CLR Button"));}
            if(a >=20 and a <=34 ){
    r12hr_get_counter();
    r12hr_write_counter();
    r12hr_get_code();
        c= a - 20;
        lcd.setCursor(0, 0);
  lcd.print(F("CODE :"));
         lcd.setCursor(10, 0);
  lcd.print(b);
      lcd.setCursor(0, 1);
      lcd.print(F("Copy and Sign-in"));
    delay(5000);
  buttoncounter=2;
     lcd.setCursor(0, 1);
      lcd.print(F("Press CLR Button"));}
      if(a >=35 and a <=200 ){
 r1day_get_counter();
    r1day_write_counter();
    r1day_get_code();
        c= a - 35;
        lcd.setCursor(0, 0);
  lcd.print(F("Code :"));
         lcd.setCursor(10, 0);
  lcd.print(b);
      lcd.setCursor(0, 1);
      lcd.print(F("Copy and Sign-in"));
  delay(5000);
  buttoncounter=2;
     lcd.setCursor(0, 1);
      lcd.print(F("Press CLR Button"));}
      a=c;
      b="";
   }}
else if(buttoncounter ==2){
   if (button3 == LOW) {
  buttoncounter= 0;
  lcd.setCursor(0, 1);
  lcd.print(F("    CODE CLEARED"));
      Serial.println(F("clear button pressed"));
      delay(1000);
      lcd.clear();
      lcd.setCursor(0,0);
      lcd.print(F("  Please Wait..."));
      lcd.setCursor(0,1);
      lcd.print(F("<<<AGI Portal>>>"));
      delay(700);
      if(c >=5 ){;
      lcd.clear();
      lcd.setCursor(0, 0);
      lcd.print(F("You Have"));
      lcd.setCursor(0, 1);
      lcd.print(F("Coin = Php"));
      lcd.setCursor(12, 1);
      lcd.print(a);
      delay(3000);};
      lcd.clear();
      lcd.setCursor(0,0);
      lcd.print(F("Pls Insert Coin"));
      lcd.setCursor(0,1);
      lcd.print(F("1,5,10 Php Coin"));
      delay(2000);
      lcd.clear();
      lcd.print(F(" P5=1hr P10=1hr"));
      lcd.setCursor(0, 1);
      lcd.print(F(" P20=5hr P35=1D"));} }
else{
}
 if (button == HIGH) {
    delay(5);
if (o1 >= 5){
  lcd.clear();
    lcd.setCursor(0, 0);
 lcd.print(F("1,5,10 Php Coin"));
     lcd.setCursor(0, 1);
     lcd.print(F(" Select 1hr/1day"));
   o=0;}
if (o1 >= 10){
  lcd.clear();
      lcd.setCursor(0, 0);
 lcd.print(F(" Copy   Voucher "));
     lcd.setCursor(0, 1);
     lcd.print(F(" FOR 15 SECONDS "));
   o=0;}
if(o1>= 20){
  lcd.clear();
      lcd.setCursor(0, 0);
  lcd.print(F("     SIGN IN"));
     lcd.setCursor(0, 1);
   lcd.print(F("      DONE  "));
   o=0;}
}}