Need to optimise Google Apps Script to reduce script runtime - google-apps-script

Question

I've constructed a "Conveyor" style system within Google Sheets to move users from further slots into closer slots when they become available.
Screenshot of the Google Sheets layout where this is being implemented.
For example, if someone was in "User 1" but then left, it moves the user in "User 2" into "User 1", the user in "User 3" moves to "User 2", etc., pushing them along the chain, ensuring that the slots are used in order.
As the requirements are time-based, it's often the case that Users 1, 2 and 3 are removed at the same time, meaning that one person is left in the "User 4" slot. Using the current script, it will move them from "User 4" -> "User 3" -> "User 2" -> "User 1".
Additionally, due to some formatting I have set up (Index Matching), I need the cells to display the word "None" instead of staying blank. I've been able to do this easily by checking if the cell is blank, and if so, setting the value to "None".
The script works, but it is really slow. The total script execution time is over 14 seconds.
Here's the scripting I'm using:
function conveyor() {
var s = SpreadsheetApp.getActiveSpreadsheet()
.getSheetByName('UsernameSheet');
// LOOP 1
var Username1Val = s.getRange('C3').getDisplayValue();
var Username2Val = s.getRange('I3').getDisplayValue();
var Username3Val = s.getRange('O3').getDisplayValue();
var Username4Val = s.getRange('U3').getDisplayValue();
var Username1 = s.getRange('C3')
var Username2 = s.getRange('I3')
var Username3 = s.getRange('O3')
var Username4 = s.getRange('U3')
if (Username3Val == 'None') {
FourtoThree();
}
if (Username1.isBlank()) {
Username1.setValue('None');
}
if (Username2.isBlank()) {
Username2.setValue('None');
}
if (Username3.isBlank()) {
Username3.setValue('None');
}
if (Username4.isBlank()) {
Username4.setValue('None');
}
if (Username2Val == 'None') {
ThreetoTwo();
}
if (Username1.isBlank()) {
Username1.setValue('None');
}
if (Username2.isBlank()) {
Username2.setValue('None');
}
if (Username3.isBlank()) {
Username3.setValue('None');
}
if (Username4.isBlank()) {
Username4.setValue('None');
}
if (Username1Val == 'None') {
TwotoOne();
}
if (Username1.isBlank()) {
Username1.setValue('None');
}
if (Username2.isBlank()) {
Username2.setValue('None');
}
if (Username3.isBlank()) {
Username3.setValue('None');
}
if (Username4.isBlank()) {
Username4.setValue('None');
}
// LOOP 2
var Username1Val = s.getRange('C3').getDisplayValue();
var Username2Val = s.getRange('I3').getDisplayValue();
var Username3Val = s.getRange('O3').getDisplayValue();
var Username4Val = s.getRange('U3').getDisplayValue();
var Username1 = s.getRange('C3')
var Username2 = s.getRange('I3')
var Username3 = s.getRange('O3')
var Username4 = s.getRange('U3')
if (Username3Val == 'None') {
FourtoThree();
}
if (Username1.isBlank()) {
Username1.setValue('None');
}
if (Username2.isBlank()) {
Username2.setValue('None');
}
if (Username3.isBlank()) {
Username3.setValue('None');
}
if (Username4.isBlank()) {
Username4.setValue('None');
}
if (Username2Val == 'None') {
ThreetoTwo();
}
if (Username1.isBlank()) {
Username1.setValue('None');
}
if (Username2.isBlank()) {
Username2.setValue('None');
}
if (Username3.isBlank()) {
Username3.setValue('None');
}
if (Username4.isBlank()) {
Username4.setValue('None');
}
if (Username1Val == 'None') {
TwotoOne();
}
if (Username1.isBlank()) {
Username1.setValue('None');
}
if (Username2.isBlank()) {
Username2.setValue('None');
}
if (Username3.isBlank()) {
Username3.setValue('None');
}
if (Username4.isBlank()) {
Username4.setValue('None');
}
// LOOP 3
var Username1Val = s.getRange('C3').getDisplayValue();
var Username2Val = s.getRange('I3').getDisplayValue();
var Username3Val = s.getRange('O3').getDisplayValue();
var Username4Val = s.getRange('U3').getDisplayValue();
var Username1 = s.getRange('C3')
var Username2 = s.getRange('I3')
var Username3 = s.getRange('O3')
var Username4 = s.getRange('U3')
if (Username3Val == 'None') {
FourtoThree();
}
if (Username1.isBlank()) {
Username1.setValue('None');
}
if (Username2.isBlank()) {
Username2.setValue('None');
}
if (Username3.isBlank()) {
Username3.setValue('None');
}
if (Username4.isBlank()) {
Username4.setValue('None');
}
if (Username2Val == 'None') {
ThreetoTwo();
}
if (Username1.isBlank()) {
Username1.setValue('None');
}
if (Username2.isBlank()) {
Username2.setValue('None');
}
if (Username3.isBlank()) {
Username3.setValue('None');
}
if (Username4.isBlank()) {
Username4.setValue('None');
}
if (Username1Val == 'None') {
TwotoOne();
}
if (Username1.isBlank()) {
Username1.setValue('None');
}
if (Username2.isBlank()) {
Username2.setValue('None');
}
if (Username3.isBlank()) {
Username3.setValue('None');
}
if (Username4.isBlank()) {
Username4.setValue('None');
}
}
function FourtoThree() {
var s = SpreadsheetApp.getActiveSpreadsheet()
.getSheetByName('UsernameSheet');
var Username3Name = s.getRange('O3');
var Username3NameVal = s.getRange('O3').getDisplayValue();
var Username3Start = s.getRange('O4');
var Username3StartVal = s.getRange('O4').getDisplayValue();
var Username3Finish = s.getRange('O5');
var Username3FinishVal = s.getRange('O5').getDisplayValue();
var Username3Break = s.getRange('Q7');
var Username3BreakVal = s.getRange('Q7').getDisplayValue();
var Username3Busy = s.getRange('Q6');
var Username3BusyVal = s.getRange('Q6').getDisplayValue();
var Username4Name = s.getRange('U3');
var Username4NameVal = s.getRange('U3').getDisplayValue();
var Username4Start = s.getRange('U4');
var Username4StartVal = s.getRange('U4').getDisplayValue();
var Username4Finish = s.getRange('U5');
var Username4FinishVal = s.getRange('U5').getDisplayValue();
var Username4Break = s.getRange('W7');
var Username4BreakVal = s.getRange('W7').getDisplayValue();
var Username4Busy = s.getRange('W6');
var Username4BusyVal = s.getRange('W6').getDisplayValue();
Username3Name.setValue(Username4NameVal);
Username3Start.setValue(Username4StartVal);
Username3Finish.setValue(Username4FinishVal);
Username3Break.setValue(Username4BreakVal);
Username3Busy.setValue(Username4BusyVal);
Username4Name.clearContent();
Username4Start.clearContent();
Username4Finish.clearContent();
Username4Break.clearContent();
Username4Busy.clearContent();
}
function ThreetoTwo() {
var s = SpreadsheetApp.getActiveSpreadsheet()
.getSheetByName('UsernameSheet');
var Username2Name = s.getRange('I3');
var Username2NameVal = s.getRange('I3').getDisplayValue();
var Username2Start = s.getRange('I4');
var Username2StartVal = s.getRange('I4').getDisplayValue();
var Username2Finish = s.getRange('I5');
var Username2FinishVal = s.getRange('I5').getDisplayValue();
var Username2Break = s.getRange('K7');
var Username2BreakVal = s.getRange('K7').getDisplayValue();
var Username2Busy = s.getRange('K6');
var Username2BusyVal = s.getRange('K6').getDisplayValue();
var Username3Name = s.getRange('O3');
var Username3NameVal = s.getRange('O3').getDisplayValue();
var Username3Start = s.getRange('O4');
var Username3StartVal = s.getRange('O4').getDisplayValue();
var Username3Finish = s.getRange('O5');
var Username3FinishVal = s.getRange('O5').getDisplayValue();
var Username3Break = s.getRange('Q7');
var Username3BreakVal = s.getRange('Q7').getDisplayValue();
var Username3Busy = s.getRange('Q6');
var Username3BusyVal = s.getRange('Q6').getDisplayValue();
Username2Name.setValue(Username3NameVal);
Username2Start.setValue(Username3StartVal);
Username2Finish.setValue(Username3FinishVal);
Username2Break.setValue(Username3BreakVal);
Username2Busy.setValue(Username3BusyVal);
Username3Name.clearContent();
Username3Start.clearContent();
Username3Finish.clearContent();
Username3Break.clearContent();
Username3Busy.clearContent();
}
function TwotoOne() {
var s = SpreadsheetApp.getActiveSpreadsheet()
.getSheetByName('UsernameSheet');
var Username1Name = s.getRange('C3');
var Username1NameVal = s.getRange('C3').getDisplayValue();
var Username1Start = s.getRange('C4');
var Username1StartVal = s.getRange('C4').getDisplayValue();
var Username1Finish = s.getRange('C5');
var Username1FinishVal = s.getRange('C5').getDisplayValue();
var Username1Break = s.getRange('E7');
var Username1BreakVal = s.getRange('E7').getDisplayValue();
var Username1Busy = s.getRange('E6');
var Username1BusyVal = s.getRange('E6').getDisplayValue();
var Username2Name = s.getRange('I3');
var Username2NameVal = s.getRange('I3').getDisplayValue();
var Username2Start = s.getRange('I4');
var Username2StartVal = s.getRange('I4').getDisplayValue();
var Username2Finish = s.getRange('I5');
var Username2FinishVal = s.getRange('I5').getDisplayValue();
var Username2Break = s.getRange('K7');
var Username2BreakVal = s.getRange('K7').getDisplayValue();
var Username2Busy = s.getRange('K6');
var Username2BusyVal = s.getRange('K6').getDisplayValue();
Username1Name.setValue(Username2NameVal);
Username1Start.setValue(Username2StartVal);
Username1Finish.setValue(Username2FinishVal);
Username1Break.setValue(Username2BreakVal);
Username1Busy.setValue(Username2BusyVal);
Username2Name.clearContent();
Username2Start.clearContent();
Username2Finish.clearContent();
Username2Break.clearContent();
Username2Busy.clearContent();
}
What the script does is Firstly runs to check if the usernames 1-4 have a blank cell. If they do, they set the values to "None".
Then, an IF statement runs to check if Username 3 = None, if it does, it then runs function FourtoThree, which in itself moves the values from Username 4 to Username 3. It then checks Username 2, then username 1, and does the same type of functions of moving the data along if the value is "None". This whole function then runs 3 times, the maximum number of moves the conveyor system would need to complete.
I'm still a novice with Google Apps Script (well, JavaScript in general), so I threw this together and was happy it worked.
Now, the sluggish runtime of the script is becoming problematic for its use-scenario , and I'm looking for ways to optimize this, please.
I'm not at all expecting anyone to write me a script that would alleviate my issues, but if anyone could suggest an example of a function that could achieve what I'm trying to do, and/or an idea of how to implement it.

Answer 1

Here is a prototype you can try but I don't use "None" just blank
function conveyor() {
var s = SpreadsheetApp.getActiveSpreadsheet();
// Get range C3:W7
var r = s.getSheetByName('Test').getRange(3,3,5,21);
var users = r.getValues();
var formulas = r.getFormulas();
for( var i=0; i<13; i+=6 ) { // Only do it 3 times
if( users[0][i] === "" ) {
users[0][i] = users[0][i+6]; // Username
users[0][i+6] = "";
users[1][i] = users[1][i+6]; // Start time
users[1][i+6] = "";
users[2][i] = users[2][i+6]; // Finish time
users[2][i+6] = "";
users[3][i+2] = users[3][i+8]; // Busy
users[3][i+8] = false;
users[4][i+2] = users[4][i+8]; // Break
users[4][i+8] = false;
}
}
for( var i=0; i<users.length; i++ ) {
for( var j=0; j<users[0].length; j++ ) {
if( formulas[i][j] !== "" ) users[i][j] = formulas[i][j].toString();
}
}
r.setValues(users);
}