clean.ts

/**
 * For all projects, unlinks the peer assessment forms and
 * deletes the sheet gathering responses.
 * Also clears all links/ids of PA forms.
 */
function deletePASheets() {
  let projects = getProjects();
  let pas = getPAs();
  for (let i = 0; i < pas.length; i++) {
    for (let p = 0; p < projects.length; p++) {

      let pp = getPaProject(pas[i].id, projects[p].data.key);
      if (pp == null || pp.data.formId == "") { continue; }

      let form = FormApp.openById(pp.data.formId);

      let sheet = getFormResponseSheet_(form.getId());
      form.removeDestination();
      SpreadsheetApp.getActive().deleteSheet(sheet);

      DriveApp.getFileById(form.getId()).setTrashed(true);
    }
  }
  deletePALinks();
}

function deleteRegVerSheets() {
  deleteRegistrationSheet_();
  deleteVerificationSheet_();
  deleteLinks();
}

function deleteRegistrationSheet_() {
  let form = FormApp.openById(getRegistrationFormId());
  let sheet = getFormResponseSheet_(form.getId());
  form.removeDestination();
  SpreadsheetApp.getActive().deleteSheet(sheet);
  DriveApp.getFileById(form.getId()).setTrashed(true);
}

function deleteVerificationSheet_() {
  let form = FormApp.openById(getVerificationFormId());
  let sheet = getFormResponseSheet_(form.getId());
  form.removeDestination();
  SpreadsheetApp.getActive().deleteSheet(sheet);
  DriveApp.getFileById(form.getId()).setTrashed(true);
}