@graffy/common/cjs/decorate/rangeToPage.js

Common libraries that used by various Graffy modules.

"use strict";

exports.__esModule = true;
exports.default = rangeToPage;

var _graph = require("../graph");

var _encode = require("../encode");

function rangeToPage(key, end, count) {
  var page = {};
  if (typeof count === 'number') page[count > 0 ? 'first' : 'last'] = count;

  if (key !== '') {
    var _keyStep = (0, _graph.keyStep)(key),
        k = _keyStep.key,
        step = _keyStep.step;

    page.after = (0, _encode.decodeKey)(k);
    if (step === 1) page.excludeAfter = true;
  }

  if (end !== "\uFFFF") {
    var _keyStep2 = (0, _graph.keyStep)(end),
        _k = _keyStep2.key,
        _step = _keyStep2.step;

    page.before = (0, _encode.decodeKey)(_k);
    if (_step === -1) page.excludeBefore = true;
  }

  return page;
}

module.exports = exports.default;