import { AggregationCondition } from 'interfaces';

function interpretCondition(val, operator, comparator) {
  switch (operator) {
    case '==':
      return val == comparator;
    case '!=':
      return val != comparator;
    case '<':
      return val < comparator;
    case '<=':
      return val <= comparator;
    case '>':
      return val > comparator;
    case '>=':
      return val >= comparator;
    default:
      return false;
  }
}

export default function checkCondition(childItem: Object|void, conditions: Array<AggregationCondition> = []) {
  if (!childItem) return false;

  for (let i = 0; i < conditions.length; i += 1) {
    const condition = conditions[i];
    const propKey = condition[0];
    const operator = condition[1];
    const comparator = condition[2];
    if (!interpretCondition(childItem[propKey], operator, comparator)) {
      return false;
    }
  }
  return true;
}