Secret santa mixmatch with google sheets and apps script : Use this script following the instructions in the gist to create a Secret santa mix-match and if needed send each user their partner's details Read whole post here @Hashnode https://hashnode.com/post/secret-santa-mix-match-with-google-sheets-and-apps-script-cjptefe1d00rikas2z9joelqa

mixmatch.gs

/** Dummy data
[email protected]	Thomas Bolan  
[email protected]	Rafael Ridgley  
[email protected]	Shoshana Zarrella  
[email protected]	Shavon Cales  
[email protected]	Mirian Fasano  
[email protected]	Wilfred Patch  
[email protected]	Allan Bankes  
[email protected]	Edwin Acheson  
[email protected]	Emanuel Oriley  
[email protected]	Vincenzo Rosenfeld  
[email protected]	Kaylene Sauter  
[email protected]	Miguel Gerstner  
[email protected]	Theresia Heffington  
[email protected]	Carl Hendrie  
[email protected]	Mazie Kilmon  
[email protected]	Marietta Pressman  
[email protected]	Tesha Chatham  
[email protected]	Erasmo Walcott  
[email protected]	Julia Harrah  
[email protected]	Deloris Birch  
*/

function readCurrentSheet(){
 var currentActiveSheet = SpreadsheetApp.getActiveSheet();
 return currentActiveSheet.getDataRange().getValues()
}

function shuffle(array) {
 var currentIndex = array.length, temp, randomIndex;
 while (0 !== currentIndex){
  randomIndex = Math.floor(Math.random() * currentIndex);
  currentIndex -= 1;
  temp = array[currentIndex];
  array[currentIndex] = array[randomIndex];
  array[randomIndex] = temp;
 }
 return array;
}

function main(){
 var shuffledList = shuffle(readCurrentSheet());
 var newSheet = SpreadsheetApp.getActiveSpreadsheet().insertSheet('Final List');

 var firstHalf = shuffledList.splice(0, shuffledList.length/2);
 var newShuffledGivers = [].concat(firstHalf);
 var newShuffledGivers = shuffle(newShuffledGivers);
  
 for(var i=0;i<shuffledList.length;i++){
  temp = [];
  temp = temp.concat(firstHalf[i] || ['','','']).concat(shuffledList[i]).concat(newShuffledGivers[i] || ['','','']);
    
  //firstHalf[i][0] !== '' && MailApp.sendEmail(firstHalf[i][0], 'You secret santa partner', 'Hello there, your secret santa partner is ' + shuffledList[i][1]); // to 1st about 2nd
  //newShuffledGivers[i][1] !== '' && MailApp.sendEmail(shuffledList[i][0], 'You secret santa partner', 'Hello there, your secret santa partner is ' + newShuffledGivers[i][1]); // to 2nd about 1st
  newSheet.appendRow(temp);
 }

}