$(document).ready(function() {
  let clock;

  // Grab the current date
  let currentDate = new Date();

  // Target future date/24 hour time/Timezone
  let targetDate = moment.tz("2022-06-30 23:59", "Asia/Jakarta");

  // Calculate the difference in seconds between the future and current date
  let diff = targetDate / 1000 - currentDate.getTime() / 1000;

  if (diff <= 0) {
    // If remaining countdown is 0
    clock = $(".clock").FlipClock(0, {
      clockFace: "DailyCounter",
      countdown: true,
      autostart: false
    });
    console.log("Date has already passed!")
    
  } else {
    // Run countdown timer
    clock = $(".clock").FlipClock(diff, {
      clockFace: "DailyCounter",
      countdown: true,
      callbacks: {
        stop: function() {
          console.log("Timer has ended!")
        }
      }
    });
    
    // Check when timer reaches 0, then stop at 0
    setTimeout(function() {
      checktime();
    }, 1000);
    
    function checktime() {
      t = clock.getTime();
      if (t <= 0) {
        clock.setTime(0);
      }
      setTimeout(function() {
        checktime();
      }, 1000);
    }
  }
});


function generate_year_range(start, end) {
    var years = "";
    for (var year = start; year <= end; year++) {
        years += "<option value='" + year + "'>" + year + "</option>";
    }
    return years;
}

today = new Date();
currentMonth = today.getMonth();
currentYear = today.getFullYear();
selectYear = document.getElementById("year");
selectMonth = document.getElementById("month");


createYear = generate_year_range(1970, 2050);
/** or
 * createYear = generate_year_range( 1970, currentYear );
 */

document.getElementById("year").innerHTML = createYear;

var calendar = document.getElementById("calendar");
var lang = calendar.getAttribute('data-lang');

var months = "";
var days = "";

var monthDefault = ["Januari", "Februari", "Maret", "April", "Mei", "Juni", "Juli", "Agustus", "September", "Oktober", "November", "Desember"];

var dayDefault = ["Ming", "Sen", "Sel", "Rab", "Kam", "Jum", "Sab"];

if (lang == "en") {
    months = monthDefault;
    days = dayDefault;
} else if (lang == "id") {
    months = ["Januari", "Februari", "Maret", "April", "Mei", "Juni", "Juli", "Agustus", "September", "Oktober", "November", "Desember"];
    days = ["Ming", "Sen", "Sel", "Rab", "Kam", "Jum", "Sab"];
} else if (lang == "fr") {
    months = ["Janvier", "Février", "Mars", "Avril", "Mai", "Juin", "Juillet", "Août", "Septembre", "Octobre", "Novembre", "Décembre"];
    days = ["dimanche", "lundi", "mardi", "mercredi", "jeudi", "vendredi", "samedi"];
} else {
    months = monthDefault;
    days = dayDefault;
}


var $dataHead = "<tr>";
for (dhead in days) {
    $dataHead += "<th data-days='" + days[dhead] + "'>" + days[dhead] + "</th>";
}
$dataHead += "</tr>";

//alert($dataHead);
document.getElementById("thead-month").innerHTML = $dataHead;


monthAndYear = document.getElementById("monthAndYear");
showCalendar(currentMonth, currentYear);



function next() {
    currentYear = (currentMonth === 11) ? currentYear + 1 : currentYear;
    currentMonth = (currentMonth + 1) % 12;
    showCalendar(currentMonth, currentYear);
}

function previous() {
    currentYear = (currentMonth === 0) ? currentYear - 1 : currentYear;
    currentMonth = (currentMonth === 0) ? 11 : currentMonth - 1;
    showCalendar(currentMonth, currentYear);
}

function jump() {
    currentYear = parseInt(selectYear.value);
    currentMonth = parseInt(selectMonth.value);
    showCalendar(currentMonth, currentYear);
}

//==show calendar dan seterusnya di calendarJS.php==//
function showCalendar(month, year) {

    const hari = [1,16,22,30];

    var firstDay = ( new Date( year, month ) ).getDay();

    tbl = document.getElementById("calendar-body");

    
    tbl.innerHTML = "";

    
    monthAndYear.innerHTML = months[month] + " " + year;
    selectYear.value = year;
    selectMonth.value = month;

    // creating all cells
    var date = 1;
    for ( var i = 0; i < 6; i++ ) {
        
        var row = document.createElement("tr");

        
        for ( var j = 0; j < 7; j++ ) {
            if ( i === 0 && j < firstDay ) {
                cell = document.createElement( "td" );
                cellText = document.createTextNode("");
                cell.appendChild(cellText);
                row.appendChild(cell);
            } else if (date > daysInMonth(month, year)) {
                break;
            } else {
                cell = document.createElement("td");
                cell.setAttribute("data-date", date);
                cell.setAttribute("data-month", month + 1);
                cell.setAttribute("data-year", year);
                cell.setAttribute("data-month_name", months[month]);
                cell.className = "date-picker";
                cell.innerHTML = "<span>" + date + "</span>";

                if ( date === today.getDate() && year === today.getFullYear() && month === today.getMonth() ) {
                    cell.className = "date-picker selected";
                }

                if(inArray(date, hari)){
                    cell.className = "date-picker selected2";
                }

                row.appendChild(cell);
                date++;
            }


        }

        tbl.appendChild(row);
    }

}


function daysInMonth(iMonth, iYear) {
    return 32 - new Date(iYear, iMonth, 32).getDate();
}

function inArray(needle, haystack) {
    var length = haystack.length;
    for(var i = 0; i < length; i++) {
        if(haystack[i] == needle) return true;
    }
    return false;
}