// Change to true to enable email notifications
var emailNotification = false;
var emailAddress = "Change_to_your_Email";

// DO NOT EDIT THESE NEXT PARAMS
var isNewSheet = false;
var recivedData = [];
/**
 * this is a function that fires when the webapp receives a GET request
 * Not used but required.
 */
function doGet( e ) {
  return HtmlService.createHtmlOutput( "Yepp this is the webhook URL, request received" );
}
// Webhook Receiver - triggered with form webhook to pusblished App URL.
function doPost( e ) {
  var params = JSON.stringify(e.parameter);
  params = JSON.parse(params);
  insertToSheet(params);
  // HTTP Response
  return HtmlService.createHtmlOutput( "post request received" );
}
// Flattens a nested object for easier use with a spreadsheet
function flattenObject( ob ) {
  var toReturn = {};
  for ( var i in ob ) {
    if ( ! ob.hasOwnProperty( i ) ) continue;
    if ( ( typeof ob[ i ] ) == 'object' ) {
      var flatObject = flattenObject( ob[ i ] );
      for ( var x in flatObject ) {
        if ( ! flatObject.hasOwnProperty( x ) ) continue;
        toReturn[ i + '.' + x ] = flatObject[ x ];
      }
    } else {
      toReturn[ i ] = ob[ i ];
    }
  }
  return toReturn;
}
// normalize headers
function getHeaders( formSheet, keys ) {
  var headers = [];
  
  // retrieve existing headers
    if ( ! isNewSheet ) {
    headers = formSheet.getRange( 1, 1, 1, formSheet.getLastColumn() ).getValues()[0];
    }
  // add any additional headers
  var newHeaders = [];
  newHeaders = keys.filter( function( k ) {
    return headers.indexOf( k ) > -1 ? false : k;
  } );
  newHeaders.forEach( function( h ) {
    headers.push( h );
  } );
  return headers;
}
// normalize values
function getValues( headers, flat ) {
  var values = [];
  // push values based on headers
  headers.forEach( function( h ){
    values.push( flat[ h ] );
  });
  return values;
}
// Insert headers
function setHeaders( sheet, values ) {
  var headerRow = sheet.getRange( 1, 1, 1, values.length )
  headerRow.setValues( [ values ] );
  headerRow.setFontWeight( "bold" ).setHorizontalAlignment( "center" );
}
// Insert Data into Sheet
function setValues( sheet, values ) {
  var lastRow = Math.max( sheet.getLastRow(),1 );
  sheet.insertRowAfter( lastRow );
  sheet.getRange( lastRow + 1, 1, 1, values.length ).setValues( [ values ] ).setFontWeight( "normal" ).setHorizontalAlignment( "center" );
}
// Find or create sheet for form
function getFormSheet( formName ) {
  var formSheet;
  var activeSheet = SpreadsheetApp.getActiveSpreadsheet();
  // create sheet if needed
  if ( activeSheet.getSheetByName( formName ) == null ) {
      formSheet = activeSheet.insertSheet();
      formSheet.setName( formName );
      isNewSheet = true;
  }
  return activeSheet.getSheetByName( formName );
}

// magic function where it all happens
function insertToSheet( data ){
  var flat = flattenObject( data );
  var keys = Object.keys( flat );
  var formName = data["form_name"];
  var formSheet = getFormSheet( formName );
  var headers = getHeaders( formSheet, keys );
  var values = getValues( headers, flat );
  setHeaders( formSheet, headers );
  setValues( formSheet, values );
  
    if ( emailNotification ) {
    sendNotification( data, getSeetURL() );
  }
}
function getSeetURL() {
  var spreadsheet = SpreadsheetApp.getActiveSpreadsheet();
  var sheet = spreadsheet.getActiveSheet();
  return spreadsheet.getUrl();
}
function sendNotification( data, url ) {
  var subject = "A new Elementor Pro Froms subbmition has been inserted to your sheet";
  var message = "A new subbmition has been recived via " + data['form_name'] + " form and inserted into your Google sheet at: " + url;
  MailApp.sendEmail( emailAddress, subject, message, {
    name: 'Automatic Emailer Script'
  } );
}