check.js

var route = require('./route');
var UserSys = require('./model/UserSys');
var SysLog = require('./model/SysLog');
/*
 * Authorization Event
 *
 * The value for 'optin.ref' is defined in the entry point. For the "Send to 
 * Messenger" plugin, it is the 'data-ref' field. Read more at 
 * https://developers.facebook.com/docs/messenger-platform/webhook-reference#auth
 *
 */
exports.receivedAuthentication =function(event) {
  var senderID = event.sender.id;
  var recipientID = event.recipient.id;
  var timeOfAuth = event.timestamp;

  // The 'ref' field is set in the 'Send to Messenger' plugin, in the 'data-ref'
  // The developer can set this to an arbitrary value to associate the 
  // authentication callback with the 'Send to Messenger' click event. This is
  // a way to do account linking when the user clicks the 'Send to Messenger' 
  // plugin.
  var passThroughParam = event.optin.ref;

  console.log("Received authentication for user %d and page %d with pass " +
    "through param '%s' at %d", senderID, recipientID, passThroughParam, 
    timeOfAuth);

  // When an authentication is received, we'll send a message back to the sender
  // to let them know it was successful.
  route.sendTextMessage(senderID, "Authentication successful");
}
 
/*
 * Message Event
 *
 * This event is called when a message is sent to your page. The 'message' 
 * object format can vary depending on the kind of message that was received.
 * Read more at https://developers.facebook.com/docs/messenger-platform/webhook-reference#received_message
 *
 * For this example, we're going to echo any text that we get. If we get some 
 * special keywords ('button', 'generic', 'receipt'), then we'll send back
 * examples of those bubbles to illustrate the special message bubbles we've 
 * created. If we receive a message with an attachment (image, video, audio), 
 * then we'll simply confirm that we've received the attachment.
 * 
 */
exports.receivedMessage = function(event) {
  var senderID = event.sender.id;
  var recipientID = event.recipient.id;
  var timeOfMessage = event.timestamp;
  var message = event.message;

  console.log("Received message for user %d and page %d at %d with message:", 
    senderID, recipientID, timeOfMessage);
  console.log(JSON.stringify(message));
  if(message.quick_reply){
    this.receivedQuickReply(event);
    return;
  }
  var messageId = message.mid;

  // You may get a text or attachment but not both
  var messageText = message.text;
  var messageAttachments = message.attachments;

  if (messageText) {
    // If we receive a text message, check to see if it matches any special
    // keywords and send back the corresponding example. Otherwise, just echo
    // the text we received.
    switch (messageText.toLowerCase()) {
      case 'help':
      case 'give me a hand':
      case '幫助':
      case '幫忙':
        route.helpMessage(senderID);
        break;
      default:
        UserSys.get(senderID, 'field', function(field, err){
          if(err || !field || !field.value){
            route.randomMessage(senderID, messageText);
            return;
          }
          route.savefield(senderID, field.value, messageText);
        });
    }
  } else if (messageAttachments) {
    route.responseAttach(senderID, "Message with attachment received");
  }
}

/*
 * Delivery Confirmation Event
 *
 * This event is sent to confirm the delivery of a message. Read more about 
 * these fields at https://developers.facebook.com/docs/messenger-platform/webhook-reference#message_delivery
 *
 */
exports.receivedDeliveryConfirmation = function(event) {
  var senderID = event.sender.id;
  var recipientID = event.recipient.id;
  var delivery = event.delivery;
  var messageIDs = delivery.mids;
  var watermark = delivery.watermark;
  var sequenceNumber = delivery.seq;

  if (messageIDs) {
    messageIDs.forEach(function(messageID) {
      console.log("Received delivery confirmation for message ID: %s", 
        messageID);
    });
  }

  console.log("All message before %d were delivered.", watermark);
}


/*
 * Postback Event
 *
 * This event is called when a postback is tapped on a Structured Message. Read
 * more at https://developers.facebook.com/docs/messenger-platform/webhook-reference#postback
 * 
 */
exports.receivedPostback = function(event) {
  var senderID = event.sender.id;
  var recipientID = event.recipient.id;
  var timeOfPostback = event.timestamp;

  // The 'payload' param is a developer-defined field which is set in a postback 
  // button for Structured Messages. 
  var payload = event.postback.payload;
  SysLog.set(senderID, 'postback', payload, function(err){
    if(err){
      route.err(senderID, err);
      return;
    }
    console.log("Received postback for user %d and page %d with payload '%s' " + 
    "at %d", senderID, recipientID, payload, timeOfPostback);
    
    //locak same payload in 5 seconds
      UserSys.setPostback(senderID, payload, function(err){
        if(err){
          route.err(err);
          return;
        }
        route.postback(senderID, JSON.parse(payload));
      }); 
  });
}

/*
 * Quick reply Event
 *
 * This event is called when a postback is tapped on a Structured Message. Read
 * more at https://developers.facebook.com/docs/messenger-platform/webhook-reference#postback
 * 
 */
exports.receivedQuickReply = function(event) {
  var senderID = event.sender.id;
  var recipientID = event.recipient.id;
  var timeOfPostback = event.timestamp;

  // The 'payload' param is a developer-defined field which is set in a postback 
  // button for Structured Messages. 
  var payload = event.message.quick_reply.payload;
  SysLog.set(senderID, 'postback', payload, function(err){
    if(err){
      route.err(senderID, err);
      return;
    }
    console.log("Received postback for user %d and page %d with payload '%s' " + 
    "at %d", senderID, recipientID, payload, timeOfPostback);
    
    //locak same payload in 5 seconds
      UserSys.setPostback(senderID, payload, function(err){
        if(err){
          route.err(err);
          return;
        }
        route.postback(senderID, JSON.parse(payload));
      }); 
  });
}