(function (global, factory) {
  typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
  typeof define === 'function' && define.amd ? define(factory) :
  (global = global || self, global.rangePlugin = factory());
}(this, function () { 'use strict';

  function rangePlugin(config) {
      if (config === void 0) { config = {}; }
      return function (fp) {
          var dateFormat = "", secondInput, _secondInputFocused, _prevDates;
          var createSecondInput = function () {
              if (config.input) {
                  secondInput =
                      config.input instanceof Element
                          ? config.input
                          : window.document.querySelector(config.input);
                  if (!secondInput) {
                      fp.config.errorHandler(new Error("Invalid input element specified"));
                      return;
                  }
                  if (fp.config.wrap) {
                      secondInput = secondInput.querySelector("[data-input]");
                  }
              }
              else {
                  secondInput = fp._input.cloneNode();
                  secondInput.removeAttribute("id");
                  secondInput._flatpickr = undefined;
              }
              if (secondInput.value) {
                  var parsedDate = fp.parseDate(secondInput.value);
                  if (parsedDate)
                      fp.selectedDates.push(parsedDate);
              }
              secondInput.setAttribute("data-fp-omit", "");
              fp._bind(secondInput, ["focus", "click"], function () {
                  if (fp.selectedDates[1]) {
                      fp.latestSelectedDateObj = fp.selectedDates[1];
                      fp._setHoursFromDate(fp.selectedDates[1]);
                      fp.jumpToDate(fp.selectedDates[1]);
                  }
                  _secondInputFocused = true;
                  fp.isOpen = false;
                  fp.open(undefined, config.position === "left" ? fp._input : secondInput);
              });
              fp._bind(fp._input, ["focus", "click"], function (e) {
                  e.preventDefault();
                  fp.isOpen = false;
                  fp.open();
              });
              if (fp.config.allowInput)
                  fp._bind(secondInput, "keydown", function (e) {
                      if (e.key === "Enter") {
                          fp.setDate([fp.selectedDates[0], secondInput.value], true, dateFormat);
                          secondInput.click();
                      }
                  });
              if (!config.input)
                  fp._input.parentNode &&
                      fp._input.parentNode.insertBefore(secondInput, fp._input.nextSibling);
          };
          var plugin = {
              onParseConfig: function () {
                  fp.config.mode = "range";
                  dateFormat = fp.config.altInput
                      ? fp.config.altFormat
                      : fp.config.dateFormat;
              },
              onReady: function () {
                  createSecondInput();
                  fp.config.ignoredFocusElements.push(secondInput);
                  if (fp.config.allowInput) {
                      fp._input.removeAttribute("readonly");
                      secondInput.removeAttribute("readonly");
                  }
                  else {
                      secondInput.setAttribute("readonly", "readonly");
                  }
                  fp._bind(fp._input, "focus", function () {
                      fp.latestSelectedDateObj = fp.selectedDates[0];
                      fp._setHoursFromDate(fp.selectedDates[0]);
                      _secondInputFocused = false;
                      fp.jumpToDate(fp.selectedDates[0]);
                  });
                  if (fp.config.allowInput)
                      fp._bind(fp._input, "keydown", function (e) {
                          if (e.key === "Enter")
                              fp.setDate([fp._input.value, fp.selectedDates[1]], true, dateFormat);
                      });
                  fp.setDate(fp.selectedDates, false);
                  plugin.onValueUpdate(fp.selectedDates);
                  fp.loadedPlugins.push("range");
              },
              onPreCalendarPosition: function () {
                  if (_secondInputFocused) {
                      fp._positionElement = secondInput;
                      setTimeout(function () {
                          fp._positionElement = fp._input;
                      }, 0);
                  }
              },
              onChange: function () {
                  if (!fp.selectedDates.length) {
                      setTimeout(function () {
                          if (fp.selectedDates.length)
                              return;
                          secondInput.value = "";
                          _prevDates = [];
                      }, 10);
                  }
                  if (_secondInputFocused) {
                      setTimeout(function () {
                          secondInput.focus();
                      }, 0);
                  }
              },
              onDestroy: function () {
                  if (!config.input)
                      secondInput.parentNode &&
                          secondInput.parentNode.removeChild(secondInput);
              },
              onValueUpdate: function (selDates) {
                  var _a, _b, _c;
                  if (!secondInput)
                      return;
                  _prevDates =
                      !_prevDates || selDates.length >= _prevDates.length
                          ? selDates.slice() : _prevDates;
                  if (_prevDates.length > selDates.length) {
                      var newSelectedDate = selDates[0];
                      var newDates = _secondInputFocused
                          ? [_prevDates[0], newSelectedDate]
                          : [newSelectedDate, _prevDates[1]];
                      fp.setDate(newDates, false);
                      _prevDates = newDates.slice();
                  }
                  _a = fp.selectedDates.map(function (d) { return fp.formatDate(d, dateFormat); }), _b = _a[0], fp._input.value = _b === void 0 ? "" : _b, _c = _a[1], secondInput.value = _c === void 0 ? "" : _c;
              }
          };
          return plugin;
      };
  }

  return rangePlugin;

}));