eventassigner-js/lib/checkInput.js

A NPM package to assign groups / persons to events based on their preference

'use strict';

var checkInput = function checkInput(input) {
  if (typeof input.events === 'undefined') {
    return 0;
  }
  // Check that events have min, max
  for (var eventId = 0; eventId < input.events.length; eventId += 1) {
    if (typeof input.events[eventId].min === 'undefined' || typeof input.events[eventId].max === 'undefined' || typeof input.events[eventId].id === 'undefined') {
      return 0;
    }
  }

  // Check that events have unique ids
  var eventIds = [];
  for (var _eventId = 0; _eventId < input.events.length; _eventId += 1) {
    if (eventIds.includes(input.events[_eventId].id)) {
      return 0;
    }
    eventIds.push(input.events[_eventId].id);
  }

  if (typeof input.groups === 'undefined') {
    return 0;
  }

  // Check that groups have unique ids
  var groupIds = [];
  for (var groupId = 0; groupId < input.groups.length; groupId += 1) {
    if (groupIds.includes(input.groups[groupId].id)) {
      return 0;
    }
    groupIds.push(input.groups[groupId].id);
  }

  // Check that every group has a preferences and size

  for (var _groupId = 0; _groupId < input.groups.length; _groupId += 1) {
    if (typeof input.groups[_groupId].size !== 'number' || typeof input.groups[_groupId].pref === 'undefined') {
      return 0;
    }
    if (input.groups[_groupId].pref.constructor !== Array) {
      return 0;
    }
    // Check that every preference maps to event id
    for (var prefId = 0; prefId < input.groups[_groupId].pref.length; prefId += 1) {
      if (!eventIds.includes(input.groups[_groupId].pref[prefId])) {
        return 0;
      }
    }
  }

  // Check that  updateL exists
  if (typeof input.updateL !== 'function') {
    return 0;
  }
  return 1;
};

module.exports = { checkInput: checkInput };