Attendance Record System

void record(String dataString)
{ 
  // do something here to indicate recording/storing

  char filename[fileName.length()+1];
  fileName.toCharArray(filename,fileName.length()+1);
  
  //checking card condition,return if faulty
  if (!sd.begin(chipSelect, SPI_HALF_SPEED))
  {
    if(!checkSDCard())
    {
     // do something if card failed
    }
  }
  
  boolean title=false;
  if(!sd.exists(filename)) title = true;
  
  // create or open file
  SdFile dataFile;

  if(title==true)
  { 
    //SdFile::dateTimeCallback(dateTime);
    dataFile.open(filename,O_WRITE| O_CREAT| O_APPEND);
    dataFile.println("Date,Time,Worker ID,Status,Remark,");
    title = false;
  }
  
  else dataFile.open(filename, O_WRITE| O_APPEND);

  // if the file isn't open, pop up an error:
  if (!dataFile.isOpen())  
  {
    // do something if file cannot be opened
  } 
  
  else
  {// if the file is available, write to it:
    dataFile.println(dataString);
    dataFile.close();
  }
}

void rdAdmin()
{
  SdFile dataFile;
  if (!sd.begin(chipSelect, SPI_HALF_SPEED))
  {
    if(!checkSDCard())
    {
      msg("RD ADMIN FAIL");
      while(!checkSDCard()) continue;
    }
  }
  
  if (!(dataFile.open("admin.csv", O_READ)||dataFile.open("admin~1.csv", O_READ))) 
  {
    msg("RD ADMIN FAIL");
    return;
  }
  
  char data;
  String worker_data[3];
  int count = 0;
  boolean title_flag = true;
  int line_count = 0;
  
  while ((data = dataFile.read()) >= 0)
  {
    if(data!=','&&int(data)!=13&&int(data)!=10) worker_data[count]+=String(data);
    else if(data==',') count++;
    else if(int(data)==13)
    { 
      dataFile.read();
      
      if(line_count>0)
      {
        wrFlash((worker_data[0].toInt()),ID,worker_data[0]);
        wrFlash((worker_data[0].toInt()),NAME,worker_data[1]);
        wrFlash((worker_data[0].toInt()),POS,worker_data[2]);
        //wrFlash((worker_data[0].toInt()),STAT,"0");
      }
      line_count++;  
      count = 0;
      memset(worker_data,0,sizeof(worker_data));      
    }
  }
  dataFile.close();
}

void rdAdmin()
{
  SdFile dataFile;
  if (!sd.begin(chipSelect, SPI_HALF_SPEED))
  {
    if(!checkSDCard())
    {
      msg("RD ADMIN FAIL");
      while(!checkSDCard()) continue;
    }
  }
  
  if (!(dataFile.open("admin.csv", O_READ)||dataFile.open("admin~1.csv", O_READ))) 
  {
    msg("RD ADMIN FAIL");
    return;
  }
  
  char data;
  String worker_data[3];
  int count = 0;
  boolean title_flag = true;
  int line_count = 0;
  
  while ((data = dataFile.read()) >= 0)
  {
    if(data!=','&&int(data)!=13&&int(data)!=10) worker_data[count]+=String(data);
    else if(data==',') count++;
    else if(int(data)==13)
    { 
      dataFile.read();
      
      if(line_count>0)
      {
        wrFlash((worker_data[0].toInt()),ID,worker_data[0]);
        wrFlash((worker_data[0].toInt()),NAME,worker_data[1]);
        wrFlash((worker_data[0].toInt()),POS,worker_data[2]);
        //wrFlash((worker_data[0].toInt()),STAT,"0");
      }
      line_count++;  
      count = 0;
      memset(worker_data,0,sizeof(worker_data));      
    }
  }
  dataFile.close();
}

void setup_Time()
{ 
  byte lcd_hpos[7]={0,3,6,11,14,14};
  byte lcd_vpos[7]={0,0,0,0,0,1};
  int lcd_pos = 0;
  
  int cur_time=millis();
  int prev_time=millis();
  boolean display_stat;
  boolean time_update = 0;
  int localKey;
  
  Time_Display();

  while(1)
  {
    int sec_update = second();
    int min_update = minute();
    int hour_update = hour();
    int day_update = day();
    int month_update = month();
    int year_update = year();
    
    localKey = keypad.getKey();
    
    cur_time = millis();
    if(cur_time-prev_time>400)
    {
      display_stat = !display_stat;
      prev_time = cur_time;
    }
    
    if(display_stat==true)
    {
      lcd.setCursor(lcd_hpos[lcd_pos],lcd_vpos[lcd_pos]);
      lcd.print("  ");
    }
    else
    {
      Time_Display();
    }  
   
    if(localKey==Select)
    {
      if(time_update==true) setTime(hour(),minute(),0,day(),month(),year());
      RTC.set(now());
      msg("UPDATING TIME");
      fileName = String(Month[month()-1])+String("_")+String(year()%100)+String(".csv");
      break;
    }
    
    else if(localKey==Left)
    {
      if(--lcd_pos<0) lcd_pos = 5;
      delay(pb_delay);
    }
    
    else if(localKey==Right)
    {
      if(++lcd_pos>5) lcd_pos = 0;
      delay(pb_delay);
    }
   
    else if(localKey==Up)
    {
      switch(lcd_pos)
      {
        case 0: day_update++; if(day_update>31) day_update=1;break;
        case 1: month_update++; if(month_update>12) month_update =1;break;
        case 2: year_update++; if(year_update>2100) year_update = 2013;break;
        case 3: hour_update++;
                if(isAM()==1){if(hour_update>11) hour_update =0;}
                else if(isPM()==1){if(hour_update>23) hour_update =12;}
                time_update = 1;break;
        case 4: min_update++;if(min_update>59) min_update =0;
                time_update = 1;break;
        case 5: if(isAM()==1)hour_update+=12;else hour_update-=12;break;
      }
      setTime(hour_update,min_update,sec_update,day_update,
                                month_update,year_update);
      Time_Display();
      delay(pb_delay);
    }
      
    else if(localKey==Down)
    {
      switch(lcd_pos)
      {
        case 0: day_update--;if(day_update<1) day_update = 31;break;
        case 1: month_update--;if(month_update<1) month_update = 12;break;
        case 2: year_update--; if(year_update<2013) year_update = 2013;break;
        case 3: hour_update--; 
                if(isAM()==1){if(hour_update<0) hour_update =11;}
                else if(isPM()==1) {if(hour_update<12) hour_update =23;}
                time_update = 1;break;
        case 4: min_update--;if(min_update<0) min_update =59;time_update = 1;break;
        case 5: if(isAM()==1) hour_update+=12; else hour_update-=12;break;
      }
      setTime(hour_update,min_update,second(),day_update,
                                month_update,year_update);
      Time_Display();
      delay(pb_delay);
    }
  }
}

/////////////////////////////Admin & Interface///////////////////////////////
void admin()
{
  int category = 0;
  int option = 0;
  int prev_page = 0;
  int page = 0;
  int localKey;
  
  //if(!password_check()) return;
//  if(!admin_fpcheck()) return;

  while(1)
  { 
    if(reset_)
    {
      category-=1;
      page = prev_page;
      reset_=false;
    }
    
    localKey = keypad.getKey();
    
    switch(localKey)
    {
      case Left:  page--;
                  if(page<0) page = 0;
                  else if(page>page_no-1) page = page_no-1;
                  selection(category,option,page);
                  delay(200);
                  break;
                  
      case Right:  page++;
                   if(page<0) page = 0;
                   else if(page>page_no-1) page = page_no-1;
                   selection(category,option,page);
                   delay(200);
                   break;
  
      case Select: category++; option = page;
                   prev_page = page; page=0;
                   lcd.clear();
                   selection(category,option,page);
                   delay(200);
                   break;
                   
      case Up:   category--;
                   if(category<0)
                   {
                  //category = 0; 
                    lcd.clear();
                    return;
                   }
                   else
                    page = prev_page;
                   lcd.clear();
                   selection(category,option,page);
                   delay(200);
                   break;
      
      case None:   selection(category,option,page);
                   delay(200);
                   break;
    }
  }
}

void selection(int category,int option,int page){

  choice[category] = option;
  
  switch(category)
  {
    case 0:                         
    page_no = 5;//set pages for first category
    menu(page);
    break;
    
    case 1:
    if(choice[category]==0){delay(pb_delay);add_fprint();}      
    else if(choice[category]==1){delay(pb_delay);del_fprint();}
    else if(choice[category]==2){delay(pb_delay);empty_database();}
    else if(choice[category]==3){delay(pb_delay);setup_Time();}
    else if(choice[category]==4){delay(pb_delay);rdAdmin();}
    reset_ = true;
    break;     
}
}

void menu(int page){

 lcd.clear();
 lcd.setCursor(0,0);
 lcd.print("Menu ");
 lcd.print(page+1);lcd.print(":");

  switch(page)
  {
    case 0:  lcd.setCursor(6,1);lcd.print("ADD FPRINT");break;
    case 1:  lcd.setCursor(6,1);lcd.print("DEL FPRINT");break;
    case 2:  lcd.setCursor(2,1);lcd.print("EMPTY DATABASE");break;             
    case 3:  lcd.setCursor(6,1);lcd.print("TIME SETUP");break;
    case 4:  lcd.setCursor(5,1);lcd.print("UPDATE LIST");break;
    //user can customize or add more pages too 
  }
}

void SET_rtc() {
}

bool getTime(const char *str)
{
  int Hour, Min, Sec;

  if (sscanf(str, "%d:%d:%d", &Hour, &Min, &Sec) != 3) return false;
  tm.Hour = Hour;
  tm.Minute = Min;
  tm.Second = Sec;
  return true;
}

bool getDate(const char *str)
{
  char Month[12];
  int Day, Year;
  uint8_t monthIndex;

  if (sscanf(str, "%s %d %d", Month, &Day, &Year) != 3) return false;
  for (monthIndex = 0; monthIndex < 12; monthIndex++) {
    if (strcmp(Month, monthName[monthIndex]) == 0) break;
  }
  if (monthIndex >= 12) return false;
  tm.Day = Day;
  tm.Month = monthIndex + 1;
  tm.Year = CalendarYrToTm(Year);
  return true;
}