ioredis-mock/lib/commands/zrevrangebyscore.js

This library emulates ioredis by performing all operations in-memory.

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.zrevrangebyscore = zrevrangebyscore;

var _es6Map = require('es6-map');

var _es6Map2 = _interopRequireDefault(_es6Map);

var _arrayFrom = require('array-from');

var _arrayFrom2 = _interopRequireDefault(_arrayFrom);

var _lodash = require('lodash');

var _zrangeCommand = require('./zrange-command.common');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function zrevrangebyscore(key, inputMax, inputMin, withScores) {
  var map = this.data.get(key);
  if (!map) {
    return [];
  }

  if (this.data.has(key) && !(this.data.get(key) instanceof _es6Map2.default)) {
    return [];
  }

  var min = (0, _zrangeCommand.parseLimit)(inputMin);
  var max = (0, _zrangeCommand.parseLimit)(inputMax);
  var filteredArray = (0, _lodash.filter)((0, _arrayFrom2.default)(map.values()), (0, _zrangeCommand.filterPredicate)(min, max));

  var ordered = (0, _lodash.orderBy)(filteredArray, ['score', 'value'], ['desc', 'desc']);
  if (typeof withScores === 'string' && withScores.toUpperCase() === 'WITHSCORES') {
    return (0, _lodash.flatMap)(ordered, function (it) {
      return [it.value, it.score];
    });
  }
  return ordered.map(function (it) {
    return it.value;
  });
}