@silverwind/ioredis-mock/lib/commands/zpopmax.js

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

"use strict";

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

var _lodash = require("lodash");

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

function zpopmax(key, count = 1) {
  const map = this.data.get(key);

  if (map == null || !(map instanceof Map)) {
    return [];
  }

  const ordered = (0, _lodash.reverse)((0, _zrangeCommand.slice)((0, _lodash.orderBy)(Array.from(map.values()), ['score', 'value']), -count, -1));
  (0, _lodash.forEach)(ordered, it => {
    map.delete(it.value);
  });
  this.data.set(key, map);
  return (0, _lodash.flatMap)(ordered, it => [it.value, it.score]);
}