@huudann/fca-unofficial/src/getThreadHistoryDeprecated.js

Facebook Chat Api

"use strict";

var utils = require("../utils");
var log = require("npmlog");

module.exports = function (defaultFuncs, api, ctx) {
  return function getThreadHistory(threadID, amount, timestamp, callback) {
    var resolveFunc = function () { };
    var rejectFunc = function () { };
    var returnPromise = new Promise(function (resolve, reject) {
      resolveFunc = resolve;
      rejectFunc = reject;
    });

    if (!callback) {
      callback = function (err, threadInfo) {
        if (err) return rejectFunc(err);
        resolveFunc(threadInfo);
      };
    }

    if (!callback) throw { error: "getThreadHistory: need callback" };
    var form = {
      client: "mercury"
    };

    api.getUserInfo(threadID, function (err, res) {
      if (err) return callback(err);
      var key = Object.keys(res).length > 0 ? "user_ids" : "thread_fbids";
      form["messages[" + key + "][" + threadID + "][offset]"] = 0;
      form["messages[" + key + "][" + threadID + "][timestamp]"] = timestamp;
      form["messages[" + key + "][" + threadID + "][limit]"] = amount;

      if (ctx.globalOptions.pageID) form.request_user_id = ctx.globalOptions.pageID;

      defaultFuncs
        .post("https://www.facebook.com/ajax/mercury/thread_info.php", ctx.jar, form)
        .then(utils.parseAndCheckLogin(ctx, defaultFuncs))
        .then(function (resData) {
          if (resData.error) throw resData;
          else if (!resData.payload) throw { error: "Could not retrieve thread history." };

          // Asking for message history from a thread with no message history
          // will return undefined for actions here
          if (!resData.payload.actions) resData.payload.actions = [];

          var userIDs = {};
          resData.payload.actions.forEach(v => userIDs[v.author.split(":").pop()] = "");

          api.getUserInfo(Object.keys(userIDs), function (err, data) {
            if (err) return callback(err); //callback({error: "Could not retrieve user information in getThreadHistory."});

            resData.payload.actions.forEach(function (v) {
              var sender = data[v.author.split(":").pop()];
              if (sender) v.sender_name = sender.name;
              else v.sender_name = "Facebook User";
              v.sender_fbid = v.author;
              delete v.author;
            });

            callback(null, resData.payload.actions.map(utils.formatHistoryMessage));
          });
        })
        .catch(function (err) {
          log.error("getThreadHistory", err);
          return callback(err);
        });
    });
    return returnPromise;
  };
};