Notifies you about pending changes in your GTM workspaces by email

GTM notifikator.gs

function myFunction() {
  try {
  var message = ''
  var response = TagManager.Accounts.list()
  response.account.map(function(account) {
    Logger.log('fetching changes for %s', account.name)
    var containers = TagManager.Accounts.Containers.list(account.path)
    Utilities.sleep(5000)
    if (!containers.container) {
      Logger.log('no containers for %s', account.name)
      return
    }
    containers.container.map(function(container) {
      var workspaces =TagManager.Accounts.Containers.Workspaces.list(container.path)
      Utilities.sleep(5000)
      if (!workspaces.workspace) {
        Logger.log('no workspaces for %s > %s', account.name, countainer.name)
        return
      }
      workspaces.workspace.map(function(workspace) {
        var status = TagManager.Accounts.Containers.Workspaces.getStatus(workspace.path)
        Utilities.sleep(5000)
        if (!status.workspaceChange) return
        var chanshesList = status.workspaceChange.reduce(function(list, change) {
          list[change.changeStatus] = list[change.changeStatus] || 0
          list[change.changeStatus]++
          return list
        }, {})
        if (Object.keys(chanshesList).length) {
          message += [account.name, 'has changes in', container.name, '>', workspace.name, ': '].join(' ')
          Object.keys(chanshesList).map(function (key) {
            message += key + ':' + chanshesList[key] + '; '
          })
        }
        message += '\n'
      })
    })
  })
  Logger.log(message)
  MailApp.sendEmail('me@example.com', 'non published changes in GTM', message)
  } catch (e) {
    Logger.log(e)
    MailApp.sendEmail('me@example.com', 'non published changes in GTM', 'script failed with ' + e.message)
  }
}