v1.js

function getVars() {
  var nod = document.getElementById("nod").value;
  var s1 = document.getElementById("s1").value;
  var s2 = document.getElementById("s2").value;
  var s3 = document.getElementById("s3").value;
  var s4 = document.getElementById("s4").value;
  var s5 = document.getElementById("s5").value;
  var sub1 = document.getElementById("sub1").value;
  var sub2 = document.getElementById("sub2").value;
  var sub3 = document.getElementById("sub3").value;
  var sub4 = document.getElementById("sub4").value;
  var sub5 = document.getElementById("sub5").value;

  if(nod<5){
  	alert("Sorry, a schedule cannot be prepared for " + nod + " day(s)! Please try again.");
  	return(0);
  	document.getElementById("btnb").disabled = false;
  }

  else {
  	document.getElementById("btnb").disabled = true;
  	document.getElementById("demo").innerHTML = 'Schedule Generated! Scroll down to see it. All the best!';
  	document.getElementById("demo2").innerHTML = '<a href="#" id="test" onClick="javascript:fnExcelReport();">Download the Schedule</a>';
  	document.getElementById("demo3").innerHTML = '<br><br>';
  }

  algop1(nod,s1,s2,s3,s4,s5,sub1,sub2,sub3,sub4,sub5);

}

function indexOfTT(chk,subj) {
    for(var cc = 0; cc<subj.length;cc++){
        if(chk == subj[cc])
            return cc;
    }
}

function algop1(days,as1,as2,as3,as4,as5,asub1,asub2,asub3,asub4,asub5) {
	var subject = []
	var slot = []
	var rate = []
	for(i=0;i<5;i++)
	   slot[i] = 0;
	rate.push(as1);
	subject.push(asub1);
	rate.push(as2);
	subject.push(asub2);
	rate.push(as3);
	subject.push(asub3);
	rate.push(as4);
	subject.push(asub4);
	rate.push(as5);
	subject.push(asub5);
	var sum = 0;
	var i,j,k=0;
	var c = [];
	var s = (days-5)*2;
	while(s>4)
    {
        c[0] = s;
        for(i=0;i<5;i++)
            slot[i]+=(rate[i]*(s))/50;
        s=0;
        for(i=0;i<5;i++)
            s+=parseInt(slot[i]);
        s=((days-5)*2)-s;
        c[1] = s;
        if(c[1] - c[0] == 0)
             break;
    }
    for(i=0;i<5;i++)
        if(s>0)
        {
            slot[i] = parseInt(slot[i]) + 1;
            s--;
        }
    console.log('SUBJECT \t SLOTS');
    for(i=0;i<5;i++) {
        slot[i] = slot[i].toFixed(0);
      console.log(subject[i], slot[i]);
    }

    //Enter the round function code here
    for(i=0; i<5; i++)
      sum += parseInt(slot[i]);
    var d = (days-5)*2;
    var diff = sum - d;
    if(diff<0){
      while(diff!=0){
        slot[0] = parseInt(slot[0]) + 1;
        diff += 1;
      }
    }

    else if(diff>0){
      while(diff!=0){
        slot[0] = parseInt(slot[0]) - 1;
        diff -= 1;
      }
    }

    console.log('SUBJECT \t SLOTS');
    for(i=0;i<5;i++)
      console.log(subject[i], slot[i]);
    
    
    
    s=(days-5)*2;
    var flag = [];
    var tt= [];
    for(i=0; i<5; i++)
      flag[i] = 0;

    for(i = 0; i<5;i++)
    {
    k = 0;
    while(slot[i]!=0)
    {
       if(flag[k%s]!=-1)
       {
          tt[k%s] = subject[i];
          flag[k%s]= -1;
          slot[i] -= 1;
          k+=5;
      }
      else
        k+=1;
    }
  }
 
 var iOS;
  var unitorder = [1,2,3,4,5,3,5,1,3,2,4];
  var units = [];
  var counters = [0,0,0,0,0];
  for(i = 0;i<tt.length; i++) {
      iOS = indexOfTT(tt[i],subject);
      units[i] = unitorder[counters[iOS]%11]
      counters[iOS] += 1;
  }


  for(i = 0;i<tt.length; i++) {
  console.log(units[i],tt[i]);
  }

  var morn = [];
  var even = [];
  var munit = [];
  var eveunit = [];
  for(i = 0; i<s/2; i++)
   {
     morn[i] = tt[i];
     munit[i] = units[i];
     even[i] = tt[(s/2)+i];
     eveunit[i] = units[(s/2)+i];
  }
  
  console.log('\n DAY #\t MORNING \t EVENING\n');
  for(i = 0; i<(s/2); i++){
    console.log(i);
    console.log(morn[i],"- unit: ",munit[i], "|\t|", even[i],"- unit: ",eveunit[i]); 
  }



    function tableCreate() {
	  var body = document.getElementById('tablepart');
	  var tbl = document.createElement('table');
	  tbl.style.width = '100%';
	  tbl.setAttribute('border', '3');
	  var tbdy = document.createElement('tbody');
	  for (var i = 0; i < (days); i++) {
	    var tr = document.createElement('tr');
	    for (var j = 0; j < 3; j++) {
	        var td = document.createElement('td');
	        td.appendChild(document.createTextNode('\u0020'))
	        tr.appendChild(td);
	    }
	    tbdy.appendChild(tr);
	  }
	  var tr = document.createElement('tr');
	    for (var j = 0; j < 3; j++) {
	        var td = document.createElement('td');
	        td.appendChild(document.createTextNode('\u0020'))
	        tr.appendChild(td);
	    }
	    tbdy.appendChild(tr);
	  tbl.appendChild(tbdy);
	  body.appendChild(tbl);




	  tbl.rows[0].cells[0].innerHTML = "<b>Day</b>";
	  tbl.rows[0].cells[1].innerHTML = "<b>Morning Slot</b>";
	  tbl.rows[0].cells[2].innerHTML = "<b>Evening Slot</b>";
	  var currentDate = new Date();
	  var weekday = new Array(7);
	  weekday[0] = "Sunday";
	  weekday[1] = "Monday";
	  weekday[2] = "Tuesday";
	  weekday[3] = "Wednesday";
	  weekday[4] = "Thursday";
	  weekday[5] = "Friday";
	  weekday[6] = "Saturday";
	  for(var i = 1; i < tbl.rows.length; i++)
        {
        	currentDate.setDate(currentDate.getDate() + 1);
        	tbl.rows[i].cells[0].innerHTML = (currentDate.getDate() + '/' + (parseInt(currentDate.getMonth())+1) + '/' + currentDate.getFullYear() + " -- " + weekday[currentDate.getDay()]);
        	tbl.rows[i].cells[1].innerHTML = (morn[i-1] + "- Unit: " + munit[i-1]);
        	tbl.rows[i].cells[2].innerHTML = (even[i-1] + "- Unit: " + eveunit[i-1]);
        }
        
        tbl.rows[days-4].cells[1].innerHTML = (subject[4] + "- Unit: 1,2,3");
        tbl.rows[days-4].cells[2].innerHTML = (subject[4] + "- Unit: 3,4,5");
        tbl.rows[days-3].cells[1].innerHTML = (subject[3] + "- Unit: 1,2,3");
        tbl.rows[days-3].cells[2].innerHTML = (subject[3] + "- Unit: 3,4,5");
        tbl.rows[days-2].cells[1].innerHTML = (subject[2] + "- Unit: 1,2,3");
        tbl.rows[days-2].cells[2].innerHTML = (subject[2] + "- Unit: 3,4,5");
        tbl.rows[days-1].cells[1].innerHTML = (subject[1] + "- Unit: 1,2,3");
        tbl.rows[days-1].cells[2].innerHTML = (subject[1] + "- Unit: 3,4,5");
        tbl.rows[days].cells[1].innerHTML = (subject[0] + "- Unit: 1,2,3");
        tbl.rows[days].cells[2].innerHTML = (subject[0] + "- Unit: 3,4,5");

	}
	tableCreate();
}


function fnExcelReport() {
    var tab_text = '<html xmlns:x="urn:schemas-microsoft-com:office:excel">';
    tab_text = tab_text + '<head><xml><x:ExcelWorkbook><x:ExcelWorksheets><x:ExcelWorksheet>';

    tab_text = tab_text + '<x:Name>Schedule Sheet</x:Name>';

    tab_text = tab_text + '<x:WorksheetOptions><x:Panes></x:Panes></x:WorksheetOptions></x:ExcelWorksheet>';
    tab_text = tab_text + '</x:ExcelWorksheets></x:ExcelWorkbook></xml></head><body>';

    tab_text = tab_text + "<table border='1px'>";
    tab_text = tab_text + $('#myTable').html();
    tab_text = tab_text + '</table></body></html>';

    var data_type = 'data:application/vnd.ms-excel';
    
    var ua = window.navigator.userAgent;
    var msie = ua.indexOf("MSIE ");
    
    if (msie > 0 || !!navigator.userAgent.match(/Trident.*rv\:11\./)) {
        if (window.navigator.msSaveBlob) {
            var blob = new Blob([tab_text], {
                type: "application/csv;charset=utf-8;"
            });
            navigator.msSaveBlob(blob, 'My-Schedule.xls');
        }
    } else {
        $('#test').attr('href', data_type + ', ' + encodeURIComponent(tab_text));
        $('#test').attr('download', 'My-Schedule.xls');
    }

}