Google Chat 사용자로부터 정보 수집 및 처리

{
  "selectionInput": {
    "name": "contacts",
    "type": "MULTI_SELECT",
    "label": "Selected contacts",
    "multiSelectMaxSelectedItems": 5,
    "multiSelectMinQueryLength": 1,
    "platformDataSource": {
      "commonDataSource": "USER"
    }
  }
}

{
  "selectionInput": {
    "name": "spaces",
    "type": "MULTI_SELECT",
    "label": "Selected contacts",
    "multiSelectMaxSelectedItems": 3,
    "multiSelectMinQueryLength": 1,
    "platformDataSource": {
      "hostAppDataSource": {
        "chatDataSource": {
          "spaceDataSource": {
            "defaultToCurrentSpace": true
          }
        }
      }
    }
  }
}

{
  "selectionInput": {
    "name": "contacts",
    "type": "MULTI_SELECT",
    "label": "Selected contacts",
    "multiSelectMaxSelectedItems": 3,
    "multiSelectMinQueryLength": 1,
    "externalDataSource": { "function": "FUNCTION" },
    // Suggested items loaded by default.
    // The list is static here but it could be dynamic.
    "items": [FUNCTION]
  }
}

/**
 * Google Cloud Function that responds to events sent from a
 * Google Chat space.
 *
 * @param {Object} req Request sent from Google Chat space
 * @param {Object} res Response to send back
 */
exports.selectionInput = function selectionInput(req, res) {
  if (req.method === 'GET' || !req.body.chat) {
    return res.send('Hello! This function is meant to be used ' +
        'in a Google Chat Space.');
  }
  // Stores the Google Chat event
  const chatEvent = req.body.chat;

  // Handle user interaction with multiselect.
  if(chatEvent.widgetUpdatedPayload) {
    return res.send(queryContacts(req.body));
  }
  // Replies with a card that contains the multiselect menu.
  return res.send({ hostAppDataAction: { chatDataAction: { createMessageAction: { message: {
    cardsV2: [{
      cardId: "contactSelector",
      card: { sections:[{ widgets: [{
        selectionInput: {
          name: "contacts",
          type: "MULTI_SELECT",
          label: "Selected contacts",
          multiSelectMaxSelectedItems: 3,
          multiSelectMinQueryLength: 1,
          externalDataSource: { function: "FUNCTION_URL" },
          // Suggested items loaded by default.
          // The list is static here but it could be dynamic.
          items: [getSuggestedContact("3")]
        }
      }]}]}
    }]
  }}}}});
};

/**
* Get contact suggestions based on text typed by users.
*
* @param {Object} event the event object that contains the user's query
* @return {Object} suggestions
*/
function queryContacts(event) {
  const query = event.commonEventObject.parameters["autocomplete_widget_query"];
  return { action: { modifyOperations: [{ updateWidget: { selectionInputWidgetSuggestions: { suggestions: [
    // The list is static here but it could be dynamic.
    getSuggestedContact("1"), getSuggestedContact("2"), getSuggestedContact("3"), getSuggestedContact("4"), getSuggestedContact("5")
  // Only return items based on the query from the user.
  ].filter(e => !query || e.text.includes(query)) }}}]}};
}

/**
 * Generate a suggested contact given an ID.
 *
 * @param {String} id The ID of the contact to return.
 * @return {Object} The contact formatted as a selection item in the menu.
 */
function getSuggestedContact(id) {
  return {
    value: id,
    startIconUri: "https://www.gstatic.com/images/branding/product/2x/contacts_48dp.png",
    text: "Contact " + id
  };
}

/**
* Responds to a Message trigger in Google Chat.
*
* @param {Object} event the event object from Google Chat
* @return {Object} Response from the Chat app.
*/
function onMessage(event) {
  // Replies with a card that contains the multiselect menu.
  return { hostAppDataAction: { chatDataAction: { createMessageAction: { message: {
    cardsV2: [{
      cardId: "contactSelector",
      card: { sections:[{ widgets: [{
        selectionInput: {
          name: "contacts",
          type: "MULTI_SELECT",
          label: "Selected contacts",
          multiSelectMaxSelectedItems: 3,
          multiSelectMinQueryLength: 1,
          externalDataSource: { function: "queryContacts" },
          // Suggested items loaded by default.
          // The list is static here but it could be dynamic.
          items: [getSuggestedContact"3")]
        }
      }]}]}
    }]
  }}}}};
}

/**
* Get contact suggestions based on text typed by users.
*
* @param {Object} event the interactive event.
* @return {Object} suggestions
*/
function queryContacts(event) {
  const query = event.commonEventObject.parameters["autocomplete_widget_query"];
  return { action: { modifyOperations: [{ updateWidget: { selectionInputWidgetSuggestions: { suggestions: [
    // The list is static here but it could be dynamic.
    getSuggestedContact("1"), getSuggestedContact("2"), getSuggestedContact("3"), getSuggestedContact("4"), getSuggestedContact("5")
  // Only return items based on the query from the user.
  ].filter(e => !query || e.text.includes(query)) }}}]}};
}

/**
* Generate a suggested contact given an ID.
*
* @param {String} id The ID of the contact to return.
* @return {Object} The contact formatted as a selection item in the menu.
*/
function getSuggestedContact(id) {
  return {
    value: id,
    startIconUri: "https://www.gstatic.com/images/branding/product/2x/contacts_48dp.png",
    text: "Contact " + id
  };
}

/**
 * Google Cloud Function that handles all Google Workspace Add On events for
 * the contact manager app.
 *
 * @param {Object} req Request sent from Google Chat space
 * @param {Object} res Response to send back
 */
exports.contactManager = function contactManager(req, res) {
  const chatEvent = req.body.chat;
  const chatMessage = chatEvent.messagePayload.message;

  // Handle message payloads in the event object
  if(chatEvent.messagePayload) {
    return res.send(handleMessage(chatMessage, chatEvent.user));
  // Handle button clicks on the card
  } else if(chatEvent.buttonClickedPayload) {
    switch(req.body.commonEventObject.parameters.actionName) {
        case "openDialog":
            return res.send(openDialog());
        case "openNextCard":
            return res.send(openNextCard(req.body));
        case "submitForm":
            return res.send(submitForm(req.body));
    }
  }
};

/**
 * Submits information from a dialog or card message.
 *
 * @param {Object} event the interactive event with form inputs.
 * @return {Object} a message response that posts a private message.
 */
function submitForm(event) {
  const chatUser = event.chat.user;
  const contactName = event.commonEventObject.parameters["contactName"];

  return { hostAppDataAction: { chatDataAction: { createMessageAction: { message: {
    privateMessageViewer: chatUser,
    text: "✅ " + contactName + " has been added to your contacts."
  }}}}};
}

/**
 * Sends private text message that confirms submission.
 *
 * @param {Object} event the interactive event with form inputs.
 * @return {Object} a message response that posts a private message.
 */
function submitForm(event) {
  const chatUser = event.chat.user;
  const contactName = event.commonEventObject.parameters["contactName"];

  return { hostAppDataAction: { chatDataAction: { createMessageAction: { message: {
    privateMessageViewer: chatUser,
    text: "✅ " + contactName + " has been added to your contacts."
  }}}}};
}