habitica/website/public/js/services/taskServices.js

'use strict';

(function(){
  var TASK_KEYS_TO_REMOVE = ['_id', 'completed', 'date', 'dateCompleted', 'dateCreated', 'history', 'id', 'streak'];

  angular
    .module('habitrpg')
    .factory('Tasks', tasksFactory);

  tasksFactory.$inject = [
    '$rootScope',
    'Shared',
    'User'
  ];

  function tasksFactory($rootScope, Shared, User) {

    function editTask(task) {
      task._editing = !task._editing;
      task._tags = !User.user.preferences.tagsCollapsed;
      task._advanced = !User.user.preferences.advancedCollapsed;
      if($rootScope.charts[task.id]) $rootScope.charts[task.id] = false;
    }

    function cloneTask(task) {
      var clonedTask = _.cloneDeep(task);
      clonedTask = _cleanUpTask(clonedTask);

      return Shared.taskDefaults(clonedTask);
    }

    function _cleanUpTask(task) {
      var cleansedTask = _.omit(task, TASK_KEYS_TO_REMOVE);

      // Copy checklists but reset to uncomplete and assign new id
      _(cleansedTask.checklist).forEach(function(item) {
        item.completed = false;
        item.id = Shared.uuid();
      }).value();

      if (cleansedTask.type !== 'reward') {
        delete cleansedTask.value;
      }

      return cleansedTask;
    }

    return {
      editTask: editTask,
      cloneTask: cloneTask
    };
  }
})();