"use strict";

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

module.exports = function (defaultFuncs, api, ctx) {
  return function removeUserFromGroup(userID, threadID, callback) {
    if (!callback && (utils.getType(threadID) === "Function" || utils.getType(threadID) === "AsyncFunction")) throw { error: "please pass a threadID as a second argument." };
    if (utils.getType(threadID) !== "Number" && utils.getType(threadID) !== "String") throw { error: "threadID should be of type Number or String and not " + utils.getType(threadID) + "." };
    if (utils.getType(userID) !== "Number" && utils.getType(userID) !== "String") throw { error: "userID should be of type Number or String and not " + utils.getType(userID) + "." };

    var resolveFunc = function () { };
    var rejectFunc = function () { };
    var returnPromise = new Promise(function (resolve, reject) {
      resolveFunc = resolve;
      rejectFunc = reject;
    });

    if (!callback) {
      callback = function (err, data) {
        if (err) return rejectFunc(err);

        resolveFunc(data);
      };
    }

    var form = {
      uid: userID,
      tid: threadID
    };

    defaultFuncs
      .post("https://www.facebook.com/chat/remove_participants", ctx.jar, form)
      .then(utils.parseAndCheckLogin(ctx, defaultFuncs))
      .then(function (resData) {
        if (!resData) throw { error: "Remove from group failed." };

        if (resData.error) throw resData;

        return callback();
      })
      .catch(function (err) {
        log.error("removeUserFromGroup", err);
        return callback(err);
      });

    return returnPromise;
  };
};
