import { r as registerInstance, c as createEvent, h, d as getElement } from './core-80b5cb25.js';
import './_commonjsHelpers-4ab098b6.js';
import { _ } from './lodash-62c1633d.js';

function resolveJson(input) {
    return typeof input === "string" ? JSON.parse(input) : input;
}

function throwTypeLiteralNotSupported(name, value, allValues) {
    throw new Error(`${name} value of "${value}" is invalid. 
    valid values are: ${allValues.join(", ")}`);
}

const AllDistinctModeLiterals = [
    "value",
    "label",
    "all",
    "any",
    "none"
];

function distinctFilter(input, mode) {
    let output;
    switch (mode) {
        case "none":
            output = input;
            break;
        case "all":
            output = _.chain(input)
                .uniqBy(a => a.value)
                .uniqBy(a => a.label)
                .value();
            break;
        case "any":
            output = _.uniqWith(input, (a, b) => a.label === b.label && a.value === b.value);
            break;
        case "label":
            output = _.uniqBy(input, a => a.label);
            break;
        case "value":
            output = _.uniqBy(input, a => a.value);
            break;
        default:
            throwTypeLiteralNotSupported("distinctMode", mode, AllDistinctModeLiterals);
    }
    return output;
}

const AllTypeLiterals = ["single", "multi"];

function getBoundingClientRect(element) {
  var rect = element.getBoundingClientRect();
  return {
    width: rect.width,
    height: rect.height,
    top: rect.top,
    right: rect.right,
    bottom: rect.bottom,
    left: rect.left,
    x: rect.left,
    y: rect.top
  };
}

/*:: import type { Window } from '../types'; */

/*:: declare function getWindow(node: Node | Window): Window; */
function getWindow(node) {
  if (node.toString() !== '[object Window]') {
    var ownerDocument = node.ownerDocument;
    return ownerDocument ? ownerDocument.defaultView : window;
  }

  return node;
}

function getWindowScroll(node) {
  var win = getWindow(node);
  var scrollLeft = win.pageXOffset;
  var scrollTop = win.pageYOffset;
  return {
    scrollLeft: scrollLeft,
    scrollTop: scrollTop
  };
}

/*:: declare function isElement(node: mixed): boolean %checks(node instanceof
  Element); */

function isElement(node) {
  var OwnElement = getWindow(node).Element;
  return node instanceof OwnElement;
}
/*:: declare function isHTMLElement(node: mixed): boolean %checks(node instanceof
  HTMLElement); */


function isHTMLElement(node) {
  var OwnElement = getWindow(node).HTMLElement;
  return node instanceof OwnElement;
}

function getHTMLElementScroll(element) {
  return {
    scrollLeft: element.scrollLeft,
    scrollTop: element.scrollTop
  };
}

function getNodeScroll(node) {
  if (node === getWindow(node) || !isHTMLElement(node)) {
    return getWindowScroll(node);
  } else {
    return getHTMLElementScroll(node);
  }
}

function getNodeName(element) {
  return element ? (element.nodeName || '').toLowerCase() : null;
}

function getDocumentElement(element) {
  // $FlowFixMe: assume body is always available
  return (isElement(element) ? element.ownerDocument : element.document).documentElement;
}

function getWindowScrollBarX(element) {
  // If <html> has a CSS width greater than the viewport, then this will be
  // incorrect for RTL.
  // Popper 1 is broken in this case and never had a bug report so let's assume
  // it's not an issue. I don't think anyone ever specifies width on <html>
  // anyway.
  // Browsers where the left scrollbar doesn't cause an issue report `0` for
  // this (e.g. Edge 2019, IE11, Safari)
  return getBoundingClientRect(getDocumentElement(element)).left + getWindowScroll(element).scrollLeft;
}

// Composite means it takes into account transforms as well as layout.

function getCompositeRect(elementOrVirtualElement, offsetParent, isFixed) {
  if (isFixed === void 0) {
    isFixed = false;
  }

  var documentElement;
  var rect = getBoundingClientRect(elementOrVirtualElement);
  var scroll = {
    scrollLeft: 0,
    scrollTop: 0
  };
  var offsets = {
    x: 0,
    y: 0
  };

  if (!isFixed) {
    if (getNodeName(offsetParent) !== 'body') {
      scroll = getNodeScroll(offsetParent);
    }

    if (isHTMLElement(offsetParent)) {
      offsets = getBoundingClientRect(offsetParent);
      offsets.x += offsetParent.clientLeft;
      offsets.y += offsetParent.clientTop;
    } else if (documentElement = getDocumentElement(offsetParent)) {
      offsets.x = getWindowScrollBarX(documentElement);
    }
  }

  return {
    x: rect.left + scroll.scrollLeft - offsets.x,
    y: rect.top + scroll.scrollTop - offsets.y,
    width: rect.width,
    height: rect.height
  };
}

// Returns the layout rect of an element relative to its offsetParent. Layout
// means it doesn't take into account transforms.
function getLayoutRect(element) {
  return {
    x: element.offsetLeft,
    y: element.offsetTop,
    width: element.offsetWidth,
    height: element.offsetHeight
  };
}

function getParentNode(element) {
  if (getNodeName(element) === 'html') {
    return element;
  }

  return element.parentNode || // DOM Element detected
  // $FlowFixMe: need a better way to handle this...
  element.host || // ShadowRoot detected
  document.ownerDocument || // Fallback to ownerDocument if available
  document.documentElement // Or to documentElement if everything else fails
  ;
}

function getComputedStyle(element) {
  return getWindow(element).getComputedStyle(element);
}

function getScrollParent(node) {
  if (['html', 'body', '#document'].indexOf(getNodeName(node)) >= 0) {
    // $FlowFixMe: assume body is always available
    return node.ownerDocument.body;
  }

  if (isHTMLElement(node)) {
    // Firefox wants us to check `-x` and `-y` variations as well
    var _getComputedStyle = getComputedStyle(node),
        overflow = _getComputedStyle.overflow,
        overflowX = _getComputedStyle.overflowX,
        overflowY = _getComputedStyle.overflowY;

    if (/auto|scroll|overlay|hidden/.test(overflow + overflowY + overflowX)) {
      return node;
    }
  }

  return getScrollParent(getParentNode(node));
}

function listScrollParents(element, list) {
  if (list === void 0) {
    list = [];
  }

  var scrollParent = getScrollParent(element);
  var isBody = getNodeName(scrollParent) === 'body';
  var target = isBody ? getWindow(scrollParent) : scrollParent;
  var updatedList = list.concat(target);
  return isBody ? updatedList : // $FlowFixMe: isBody tells us target will be an HTMLElement here
  updatedList.concat(listScrollParents(getParentNode(target)));
}

function isTableElement(element) {
  return ['table', 'td', 'th'].indexOf(getNodeName(element)) >= 0;
}

var isFirefox = function isFirefox() {
  return typeof window.InstallTrigger !== 'undefined';
};

function getTrueOffsetParent(element) {
  var offsetParent;

  if (!isHTMLElement(element) || !(offsetParent = element.offsetParent) || // https://github.com/popperjs/popper-core/issues/837
  isFirefox() && getComputedStyle(offsetParent).position === 'fixed') {
    return null;
  }

  return offsetParent;
}

function getOffsetParent(element) {
  var window = getWindow(element);
  var offsetParent = getTrueOffsetParent(element); // Find the nearest non-table offsetParent

  while (offsetParent && isTableElement(offsetParent)) {
    offsetParent = getTrueOffsetParent(offsetParent);
  }

  if (offsetParent && getNodeName(offsetParent) === 'body' && getComputedStyle(offsetParent).position === 'static') {
    return window;
  }

  return offsetParent || window;
}

var top = 'top';
var bottom = 'bottom';
var right = 'right';
var left = 'left';
var auto = 'auto';
var basePlacements = [top, bottom, right, left];
var start = 'start';
var end = 'end';
var clippingParents = 'clippingParents';
var viewport = 'viewport';
var popper = 'popper';
var reference = 'reference';
var variationPlacements =
/*#__PURE__*/
basePlacements.reduce(function (acc, placement) {
  return acc.concat([placement + "-" + start, placement + "-" + end]);
}, []);
var placements =
/*#__PURE__*/
[].concat(basePlacements, [auto]).reduce(function (acc, placement) {
  return acc.concat([placement, placement + "-" + start, placement + "-" + end]);
}, []); // modifiers that need to read the DOM

var beforeRead = 'beforeRead';
var read = 'read';
var afterRead = 'afterRead'; // pure-logic modifiers

var beforeMain = 'beforeMain';
var main = 'main';
var afterMain = 'afterMain'; // modifier with the purpose to write to the DOM (or write into a framework state)

var beforeWrite = 'beforeWrite';
var write = 'write';
var afterWrite = 'afterWrite';
var modifierPhases = [beforeRead, read, afterRead, beforeMain, main, afterMain, beforeWrite, write, afterWrite];

function order(modifiers) {
  var map = new Map();
  var visited = new Set();
  var result = [];
  modifiers.forEach(function (modifier) {
    map.set(modifier.name, modifier);
  }); // On visiting object, check for its dependencies and visit them recursively

  function sort(modifier) {
    visited.add(modifier.name);
    var requires = [].concat(modifier.requires || [], modifier.requiresIfExists || []);
    requires.forEach(function (dep) {
      if (!visited.has(dep)) {
        var depModifier = map.get(dep);

        if (depModifier) {
          sort(depModifier);
        }
      }
    });
    result.push(modifier);
  }

  modifiers.forEach(function (modifier) {
    if (!visited.has(modifier.name)) {
      // check for visited object
      sort(modifier);
    }
  });
  return result;
}

function orderModifiers(modifiers) {
  // order based on dependencies
  var orderedModifiers = order(modifiers); // order based on phase

  return modifierPhases.reduce(function (acc, phase) {
    return acc.concat(orderedModifiers.filter(function (modifier) {
      return modifier.phase === phase;
    }));
  }, []);
}

function debounce(fn) {
  var pending;
  return function () {
    if (!pending) {
      pending = new Promise(function (resolve) {
        Promise.resolve().then(function () {
          pending = undefined;
          resolve(fn());
        });
      });
    }

    return pending;
  };
}

function format(str) {
  for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
    args[_key - 1] = arguments[_key];
  }

  return [].concat(args).reduce(function (p, c) {
    return p.replace(/%s/, c);
  }, str);
}

var INVALID_MODIFIER_ERROR = 'Popper: modifier "%s" provided an invalid %s property, expected %s but got %s';
var MISSING_DEPENDENCY_ERROR = 'Popper: modifier "%s" requires "%s", but "%s" modifier is not available';
var VALID_PROPERTIES = ['name', 'enabled', 'phase', 'fn', 'effect', 'requires', 'options'];
function validateModifiers(modifiers) {
  modifiers.forEach(function (modifier) {
    Object.keys(modifier).forEach(function (key) {
      switch (key) {
        case 'name':
          if (typeof modifier.name !== 'string') {
            console.error(format(INVALID_MODIFIER_ERROR, String(modifier.name), '"name"', '"string"', "\"" + String(modifier.name) + "\""));
          }

          break;

        case 'enabled':
          if (typeof modifier.enabled !== 'boolean') {
            console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"enabled"', '"boolean"', "\"" + String(modifier.enabled) + "\""));
          }

        case 'phase':
          if (modifierPhases.indexOf(modifier.phase) < 0) {
            console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"phase"', "either " + modifierPhases.join(', '), "\"" + String(modifier.phase) + "\""));
          }

          break;

        case 'fn':
          if (typeof modifier.fn !== 'function') {
            console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"fn"', '"function"', "\"" + String(modifier.fn) + "\""));
          }

          break;

        case 'effect':
          if (typeof modifier.effect !== 'function') {
            console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"effect"', '"function"', "\"" + String(modifier.fn) + "\""));
          }

          break;

        case 'requires':
          if (!Array.isArray(modifier.requires)) {
            console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"requires"', '"array"', "\"" + String(modifier.requires) + "\""));
          }

          break;

        case 'requiresIfExists':
          if (!Array.isArray(modifier.requiresIfExists)) {
            console.error(format(INVALID_MODIFIER_ERROR, modifier.name, '"requiresIfExists"', '"array"', "\"" + String(modifier.requiresIfExists) + "\""));
          }

          break;

        case 'options':
        case 'data':
          break;

        default:
          console.error("PopperJS: an invalid property has been provided to the \"" + modifier.name + "\" modifier, valid properties are " + VALID_PROPERTIES.map(function (s) {
            return "\"" + s + "\"";
          }).join(', ') + "; but \"" + key + "\" was provided.");
      }

      modifier.requires && modifier.requires.forEach(function (requirement) {
        if (modifiers.find(function (mod) {
          return mod.name === requirement;
        }) == null) {
          console.error(format(MISSING_DEPENDENCY_ERROR, String(modifier.name), requirement, requirement));
        }
      });
    });
  });
}

function uniqueBy(arr, fn) {
  var identifiers = new Set();
  return arr.filter(function (item) {
    var identifier = fn(item);

    if (!identifiers.has(identifier)) {
      identifiers.add(identifier);
      return true;
    }
  });
}

function getBasePlacement(placement) {
  return placement.split('-')[0];
}

function mergeByName(modifiers) {
  var merged = modifiers.reduce(function (merged, current) {
    var existing = merged[current.name];
    merged[current.name] = existing ? Object.assign({}, existing, {}, current, {
      options: Object.assign({}, existing.options, {}, current.options),
      data: Object.assign({}, existing.data, {}, current.data)
    }) : current;
    return merged;
  }, {}); // IE11 does not support Object.values

  return Object.keys(merged).map(function (key) {
    return merged[key];
  });
}

var INVALID_ELEMENT_ERROR = 'Popper: Invalid reference or popper argument provided. They must be either a DOM element or virtual element.';
var INFINITE_LOOP_ERROR = 'Popper: An infinite loop in the modifiers cycle has been detected! The cycle has been interrupted to prevent a browser crash.';
var DEFAULT_OPTIONS = {
  placement: 'bottom',
  modifiers: [],
  strategy: 'absolute'
};

function areValidElements() {
  for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
    args[_key] = arguments[_key];
  }

  return !args.some(function (element) {
    return !(element && typeof element.getBoundingClientRect === 'function');
  });
}

function popperGenerator(generatorOptions) {
  if (generatorOptions === void 0) {
    generatorOptions = {};
  }

  var _generatorOptions = generatorOptions,
      _generatorOptions$def = _generatorOptions.defaultModifiers,
      defaultModifiers = _generatorOptions$def === void 0 ? [] : _generatorOptions$def,
      _generatorOptions$def2 = _generatorOptions.defaultOptions,
      defaultOptions = _generatorOptions$def2 === void 0 ? DEFAULT_OPTIONS : _generatorOptions$def2;
  return function createPopper(reference, popper, options) {
    if (options === void 0) {
      options = defaultOptions;
    }

    var state = {
      placement: 'bottom',
      orderedModifiers: [],
      options: Object.assign({}, DEFAULT_OPTIONS, {}, defaultOptions),
      modifiersData: {},
      elements: {
        reference: reference,
        popper: popper
      },
      attributes: {},
      styles: {}
    };
    var effectCleanupFns = [];
    var isDestroyed = false;
    var instance = {
      state: state,
      setOptions: function setOptions(options) {
        cleanupModifierEffects();
        state.options = Object.assign({}, defaultOptions, {}, state.options, {}, options);
        state.scrollParents = {
          reference: isElement(reference) ? listScrollParents(reference) : [],
          popper: listScrollParents(popper)
        }; // Orders the modifiers based on their dependencies and `phase`
        // properties

        var orderedModifiers = orderModifiers(mergeByName([].concat(defaultModifiers, state.options.modifiers))); // Strip out disabled modifiers

        state.orderedModifiers = orderedModifiers.filter(function (m) {
          return m.enabled;
        }); // Validate the provided modifiers so that the consumer will get warned
        // if one of the modifiers is invalid for any reason

        if ("development" !== "production") {
          var modifiers = uniqueBy([].concat(orderedModifiers, state.options.modifiers), function (_ref) {
            var name = _ref.name;
            return name;
          });
          validateModifiers(modifiers);

          if (getBasePlacement(state.options.placement) === auto) {
            var flipModifier = state.orderedModifiers.find(function (_ref2) {
              var name = _ref2.name;
              return name === 'flip';
            });

            if (!flipModifier) {
              console.error(['Popper: "auto" placements require the "flip" modifier be', 'present and enabled to work.'].join(' '));
            }
          }

          var _getComputedStyle = getComputedStyle(popper),
              marginTop = _getComputedStyle.marginTop,
              marginRight = _getComputedStyle.marginRight,
              marginBottom = _getComputedStyle.marginBottom,
              marginLeft = _getComputedStyle.marginLeft; // We no longer take into account `margins` on the popper, and it can
          // cause bugs with positioning, so we'll warn the consumer


          if ([marginTop, marginRight, marginBottom, marginLeft].some(function (margin) {
            return parseFloat(margin);
          })) {
            console.warn(['Popper: CSS "margin" styles cannot be used to apply padding', 'between the popper and its reference element or boundary.', 'To replicate margin, use the `offset` modifier, as well as', 'the `padding` option in the `preventOverflow` and `flip`', 'modifiers.'].join(' '));
          }
        }

        runModifierEffects();
        return instance.update();
      },
      // Sync update – it will always be executed, even if not necessary. This
      // is useful for low frequency updates where sync behavior simplifies the
      // logic.
      // For high frequency updates (e.g. `resize` and `scroll` events), always
      // prefer the async Popper#update method
      forceUpdate: function forceUpdate() {
        if (isDestroyed) {
          return;
        }

        var _state$elements = state.elements,
            reference = _state$elements.reference,
            popper = _state$elements.popper; // Don't proceed if `reference` or `popper` are not valid elements
        // anymore

        if (!areValidElements(reference, popper)) {
          if ("development" !== "production") {
            console.error(INVALID_ELEMENT_ERROR);
          }

          return;
        } // Store the reference and popper rects to be read by modifiers


        state.rects = {
          reference: getCompositeRect(reference, getOffsetParent(popper), state.options.strategy === 'fixed'),
          popper: getLayoutRect(popper)
        }; // Modifiers have the ability to reset the current update cycle. The
        // most common use case for this is the `flip` modifier changing the
        // placement, which then needs to re-run all the modifiers, because the
        // logic was previously ran for the previous placement and is therefore
        // stale/incorrect

        state.reset = false;
        state.placement = state.options.placement; // On each update cycle, the `modifiersData` property for each modifier
        // is filled with the initial data specified by the modifier. This means
        // it doesn't persist and is fresh on each update.
        // To ensure persistent data, use `${name}#persistent`

        state.orderedModifiers.forEach(function (modifier) {
          return state.modifiersData[modifier.name] = Object.assign({}, modifier.data);
        });
        var __debug_loops__ = 0;

        for (var index = 0; index < state.orderedModifiers.length; index++) {
          if ("development" !== "production") {
            __debug_loops__ += 1;

            if (__debug_loops__ > 100) {
              console.error(INFINITE_LOOP_ERROR);
              break;
            }
          }

          if (state.reset === true) {
            state.reset = false;
            index = -1;
            continue;
          }

          var _state$orderedModifie = state.orderedModifiers[index],
              fn = _state$orderedModifie.fn,
              _state$orderedModifie2 = _state$orderedModifie.options,
              _options = _state$orderedModifie2 === void 0 ? {} : _state$orderedModifie2,
              name = _state$orderedModifie.name;

          if (typeof fn === 'function') {
            state = fn({
              state: state,
              options: _options,
              name: name,
              instance: instance
            }) || state;
          }
        }
      },
      // Async and optimistically optimized update – it will not be executed if
      // not necessary (debounced to run at most once-per-tick)
      update: debounce(function () {
        return new Promise(function (resolve) {
          instance.forceUpdate();
          resolve(state);
        });
      }),
      destroy: function destroy() {
        cleanupModifierEffects();
        isDestroyed = true;
      }
    };

    if (!areValidElements(reference, popper)) {
      if ("development" !== "production") {
        console.error(INVALID_ELEMENT_ERROR);
      }

      return instance;
    }

    instance.setOptions(options).then(function (state) {
      if (!isDestroyed && options.onFirstUpdate) {
        options.onFirstUpdate(state);
      }
    }); // Modifiers have the ability to execute arbitrary code before the first
    // update cycle runs. They will be executed in the same order as the update
    // cycle. This is useful when a modifier adds some persistent data that
    // other modifiers need to use, but the modifier is run after the dependent
    // one.

    function runModifierEffects() {
      state.orderedModifiers.forEach(function (_ref3) {
        var name = _ref3.name,
            _ref3$options = _ref3.options,
            options = _ref3$options === void 0 ? {} : _ref3$options,
            effect = _ref3.effect;

        if (typeof effect === 'function') {
          var cleanupFn = effect({
            state: state,
            name: name,
            instance: instance,
            options: options
          });

          var noopFn = function noopFn() {};

          effectCleanupFns.push(cleanupFn || noopFn);
        }
      });
    }

    function cleanupModifierEffects() {
      effectCleanupFns.forEach(function (fn) {
        return fn();
      });
      effectCleanupFns = [];
    }

    return instance;
  };
}
var createPopper =
/*#__PURE__*/
popperGenerator();

var passive = {
  passive: true
};

function effect(_ref) {
  var state = _ref.state,
      instance = _ref.instance,
      options = _ref.options;
  var _options$scroll = options.scroll,
      scroll = _options$scroll === void 0 ? true : _options$scroll,
      _options$resize = options.resize,
      resize = _options$resize === void 0 ? true : _options$resize;
  var window = getWindow(state.elements.popper);
  var scrollParents = [].concat(state.scrollParents.reference, state.scrollParents.popper);

  if (scroll) {
    scrollParents.forEach(function (scrollParent) {
      scrollParent.addEventListener('scroll', instance.update, passive);
    });
  }

  if (resize) {
    window.addEventListener('resize', instance.update, passive);
  }

  return function () {
    if (scroll) {
      scrollParents.forEach(function (scrollParent) {
        scrollParent.removeEventListener('scroll', instance.update, passive);
      });
    }

    if (resize) {
      window.removeEventListener('resize', instance.update, passive);
    }
  };
}

const eventListeners = {
  name: 'eventListeners',
  enabled: true,
  phase: 'write',
  fn: function fn() {},
  effect: effect,
  data: {}
};

function getVariation(placement) {
  return placement.split('-')[1];
}

function getMainAxisFromPlacement(placement) {
  return ['top', 'bottom'].indexOf(placement) >= 0 ? 'x' : 'y';
}

function computeOffsets(_ref) {
  var reference = _ref.reference,
      element = _ref.element,
      placement = _ref.placement;
  var basePlacement = placement ? getBasePlacement(placement) : null;
  var variation = placement ? getVariation(placement) : null;
  var commonX = reference.x + reference.width / 2 - element.width / 2;
  var commonY = reference.y + reference.height / 2 - element.height / 2;
  var offsets;

  switch (basePlacement) {
    case top:
      offsets = {
        x: commonX,
        y: reference.y - element.height
      };
      break;

    case bottom:
      offsets = {
        x: commonX,
        y: reference.y + reference.height
      };
      break;

    case right:
      offsets = {
        x: reference.x + reference.width,
        y: commonY
      };
      break;

    case left:
      offsets = {
        x: reference.x - element.width,
        y: commonY
      };
      break;

    default:
      offsets = {
        x: reference.x,
        y: reference.y
      };
  }

  var mainAxis = basePlacement ? getMainAxisFromPlacement(basePlacement) : null;

  if (mainAxis != null) {
    var len = mainAxis === 'y' ? 'height' : 'width';

    switch (variation) {
      case start:
        offsets[mainAxis] = Math.floor(offsets[mainAxis]) - Math.floor(reference[len] / 2 - element[len] / 2);
        break;

      case end:
        offsets[mainAxis] = Math.floor(offsets[mainAxis]) + Math.ceil(reference[len] / 2 - element[len] / 2);
        break;

      default:
    }
  }

  return offsets;
}

function popperOffsets(_ref) {
  var state = _ref.state,
      name = _ref.name;
  // Offsets are the actual position the popper needs to have to be
  // properly positioned near its reference element
  // This is the most basic placement, and will be adjusted by
  // the modifiers in the next step
  state.modifiersData[name] = computeOffsets({
    reference: state.rects.reference,
    element: state.rects.popper,
    strategy: 'absolute',
    placement: state.placement
  });
}

const popperOffsets$1 = {
  name: 'popperOffsets',
  enabled: true,
  phase: 'read',
  fn: popperOffsets,
  data: {}
};

var unsetSides = {
  top: 'auto',
  right: 'auto',
  bottom: 'auto',
  left: 'auto'
}; // Round the offsets to the nearest suitable subpixel based on the DPR.
// Zooming can change the DPR, but it seems to report a value that will
// cleanly divide the values into the appropriate subpixels.

function roundOffsets(_ref) {
  var x = _ref.x,
      y = _ref.y;
  var win = window;
  var dpr = win.devicePixelRatio || 1;
  return {
    x: Math.round(x * dpr) / dpr || 0,
    y: Math.round(y * dpr) / dpr || 0
  };
}

function mapToStyles(_ref2) {
  var _Object$assign2;

  var popper = _ref2.popper,
      popperRect = _ref2.popperRect,
      placement = _ref2.placement,
      offsets = _ref2.offsets,
      position = _ref2.position,
      gpuAcceleration = _ref2.gpuAcceleration,
      adaptive = _ref2.adaptive;

  var _roundOffsets = roundOffsets(offsets),
      x = _roundOffsets.x,
      y = _roundOffsets.y;

  var hasX = offsets.hasOwnProperty('x');
  var hasY = offsets.hasOwnProperty('y');
  var sideX = left;
  var sideY = top;
  var win = window;

  if (adaptive) {
    var offsetParent = getOffsetParent(popper);

    if (offsetParent === getWindow(popper)) {
      offsetParent = getDocumentElement(popper);
    } // $FlowFixMe: force type refinement, we compare offsetParent with window above, but Flow doesn't detect it

    /*:: offsetParent = (offsetParent: Element); */


    if (placement === top) {
      sideY = bottom;
      y -= offsetParent.clientHeight - popperRect.height;
      y *= gpuAcceleration ? 1 : -1;
    }

    if (placement === left) {
      sideX = right;
      x -= offsetParent.clientWidth - popperRect.width;
      x *= gpuAcceleration ? 1 : -1;
    }
  }

  var commonStyles = Object.assign({
    position: position
  }, adaptive && unsetSides);

  if (gpuAcceleration) {
    var _Object$assign;

    return Object.assign({}, commonStyles, (_Object$assign = {}, _Object$assign[sideY] = hasY ? '0' : '', _Object$assign[sideX] = hasX ? '0' : '', _Object$assign.transform = (win.devicePixelRatio || 1) < 2 ? "translate(" + x + "px, " + y + "px)" : "translate3d(" + x + "px, " + y + "px, 0)", _Object$assign));
  }

  return Object.assign({}, commonStyles, (_Object$assign2 = {}, _Object$assign2[sideY] = hasY ? y + "px" : '', _Object$assign2[sideX] = hasX ? x + "px" : '', _Object$assign2.transform = '', _Object$assign2));
}

function computeStyles(_ref3) {
  var state = _ref3.state,
      options = _ref3.options;
  var _options$gpuAccelerat = options.gpuAcceleration,
      gpuAcceleration = _options$gpuAccelerat === void 0 ? true : _options$gpuAccelerat,
      _options$adaptive = options.adaptive,
      adaptive = _options$adaptive === void 0 ? true : _options$adaptive;

  if ("development" !== "production") {
    var _getComputedStyle = getComputedStyle(state.elements.popper),
        transitionProperty = _getComputedStyle.transitionProperty;

    if (adaptive && ['transform', 'top', 'right', 'bottom', 'left'].some(function (property) {
      return transitionProperty.indexOf(property) >= 0;
    })) {
      console.warn(['Popper: Detected CSS transitions on at least one of the following', 'CSS properties: "transform", "top", "right", "bottom", "left".', '\n\n', 'Disable the "computeStyles" modifier\'s `adaptive` option to allow', 'for smooth transitions, or remove these properties from the CSS', 'transition declaration on the popper element if only transitioning', 'opacity or background-color for example.', '\n\n', 'We recommend using the popper element as a wrapper around an inner', 'element that can have any CSS property transitioned for animations.'].join(' '));
    }
  }

  var commonStyles = {
    placement: getBasePlacement(state.placement),
    popper: state.elements.popper,
    popperRect: state.rects.popper,
    gpuAcceleration: gpuAcceleration
  }; // popper offsets are always available

  state.styles.popper = Object.assign({}, state.styles.popper, {}, mapToStyles(Object.assign({}, commonStyles, {
    offsets: state.modifiersData.popperOffsets,
    position: state.options.strategy,
    adaptive: adaptive
  }))); // arrow offsets may not be available

  if (state.modifiersData.arrow != null) {
    state.styles.arrow = Object.assign({}, state.styles.arrow, {}, mapToStyles(Object.assign({}, commonStyles, {
      offsets: state.modifiersData.arrow,
      position: 'absolute',
      adaptive: false
    })));
  }

  state.attributes.popper = Object.assign({}, state.attributes.popper, {
    'data-popper-placement': state.placement
  });
}

const computeStyles$1 = {
  name: 'computeStyles',
  enabled: true,
  phase: 'beforeWrite',
  fn: computeStyles,
  data: {}
};

// and applies them to the HTMLElements such as popper and arrow

function applyStyles(_ref) {
  var state = _ref.state;
  Object.keys(state.elements).forEach(function (name) {
    var style = state.styles[name] || {};
    var attributes = state.attributes[name] || {};
    var element = state.elements[name]; // arrow is optional + virtual elements

    if (!isHTMLElement(element) || !getNodeName(element)) {
      return;
    } // Flow doesn't support to extend this property, but it's the most
    // effective way to apply styles to an HTMLElement
    // $FlowFixMe


    Object.assign(element.style, style);
    Object.keys(attributes).forEach(function (name) {
      var value = attributes[name];

      if (value === false) {
        element.removeAttribute(name);
      } else {
        element.setAttribute(name, value === true ? '' : value);
      }
    });
  });
}

function effect$1(_ref2) {
  var state = _ref2.state;
  var initialStyles = {
    popper: {
      position: 'absolute',
      left: '0',
      top: '0',
      margin: '0'
    },
    arrow: {
      position: 'absolute'
    },
    reference: {}
  };
  Object.assign(state.elements.popper.style, initialStyles.popper);

  if (state.elements.arrow) {
    Object.assign(state.elements.arrow.style, initialStyles.arrow);
  }

  return function () {
    Object.keys(state.elements).forEach(function (name) {
      var element = state.elements[name];
      var attributes = state.attributes[name] || {};
      var styleProperties = Object.keys(state.styles.hasOwnProperty(name) ? state.styles[name] : initialStyles[name]); // Set all values to an empty string to unset them

      var style = styleProperties.reduce(function (style, property) {
        style[property] = '';
        return style;
      }, {}); // arrow is optional + virtual elements

      if (!isHTMLElement(element) || !getNodeName(element)) {
        return;
      } // Flow doesn't support to extend this property, but it's the most
      // effective way to apply styles to an HTMLElement
      // $FlowFixMe


      Object.assign(element.style, style);
      Object.keys(attributes).forEach(function (attribute) {
        element.removeAttribute(attribute);
      });
    });
  };
}

const applyStyles$1 = {
  name: 'applyStyles',
  enabled: true,
  phase: 'write',
  fn: applyStyles,
  effect: effect$1,
  requires: ['computeStyles']
};

function distanceAndSkiddingToXY(placement, rects, offset) {
  var basePlacement = getBasePlacement(placement);
  var invertDistance = [left, top].indexOf(basePlacement) >= 0 ? -1 : 1;

  var _ref = typeof offset === 'function' ? offset(Object.assign({}, rects, {
    placement: placement
  })) : offset,
      skidding = _ref[0],
      distance = _ref[1];

  skidding = skidding || 0;
  distance = (distance || 0) * invertDistance;
  return [left, right].indexOf(basePlacement) >= 0 ? {
    x: distance,
    y: skidding
  } : {
    x: skidding,
    y: distance
  };
}

function offset(_ref2) {
  var state = _ref2.state,
      options = _ref2.options,
      name = _ref2.name;
  var _options$offset = options.offset,
      offset = _options$offset === void 0 ? [0, 0] : _options$offset;
  var data = placements.reduce(function (acc, placement) {
    acc[placement] = distanceAndSkiddingToXY(placement, state.rects, offset);
    return acc;
  }, {});
  var _data$state$placement = data[state.placement],
      x = _data$state$placement.x,
      y = _data$state$placement.y;
  state.modifiersData.popperOffsets.x += x;
  state.modifiersData.popperOffsets.y += y;
  state.modifiersData[name] = data;
}

const offset$1 = {
  name: 'offset',
  enabled: true,
  phase: 'main',
  requires: ['popperOffsets'],
  fn: offset
};

var hash = {
  left: 'right',
  right: 'left',
  bottom: 'top',
  top: 'bottom'
};
function getOppositePlacement(placement) {
  return placement.replace(/left|right|bottom|top/g, function (matched) {
    return hash[matched];
  });
}

var hash$1 = {
  start: 'end',
  end: 'start'
};
function getOppositeVariationPlacement(placement) {
  return placement.replace(/start|end/g, function (matched) {
    return hash$1[matched];
  });
}

function getViewportRect(element) {
  var win = getWindow(element);
  return {
    width: win.innerWidth,
    height: win.innerHeight,
    x: 0,
    y: 0
  };
}

function getDocumentRect(element) {
  var win = getWindow(element);
  var winScroll = getWindowScroll(element);
  var documentRect = getCompositeRect(getDocumentElement(element), win);
  documentRect.height = Math.max(documentRect.height, win.innerHeight);
  documentRect.width = Math.max(documentRect.width, win.innerWidth);
  documentRect.x = -winScroll.scrollLeft;
  documentRect.y = -winScroll.scrollTop;
  return documentRect;
}

function toNumber(cssValue) {
  return parseFloat(cssValue) || 0;
}

function getBorders(element) {
  var computedStyle = isHTMLElement(element) ? getComputedStyle(element) : {};
  return {
    top: toNumber(computedStyle.borderTopWidth),
    right: toNumber(computedStyle.borderRightWidth),
    bottom: toNumber(computedStyle.borderBottomWidth),
    left: toNumber(computedStyle.borderLeftWidth)
  };
}

function getDecorations(element) {
  var win = getWindow(element);
  var borders = getBorders(element);
  var isHTML = getNodeName(element) === 'html';
  var winScrollBarX = getWindowScrollBarX(element);
  var x = element.clientWidth + borders.right;
  var y = element.clientHeight + borders.bottom; // HACK:
  // document.documentElement.clientHeight on iOS reports the height of the
  // viewport including the bottom bar, even if the bottom bar isn't visible.
  // If the difference between window innerHeight and html clientHeight is more
  // than 50, we assume it's a mobile bottom bar and ignore scrollbars.
  // * A 50px thick scrollbar is likely non-existent (macOS is 15px and Windows
  //   is about 17px)
  // * The mobile bar is 114px tall

  if (isHTML && win.innerHeight - element.clientHeight > 50) {
    y = win.innerHeight - borders.bottom;
  }

  return {
    top: isHTML ? 0 : element.clientTop,
    right: // RTL scrollbar (scrolling containers only)
    element.clientLeft > borders.left ? borders.right : // LTR scrollbar
    isHTML ? win.innerWidth - x - winScrollBarX : element.offsetWidth - x,
    bottom: isHTML ? win.innerHeight - y : element.offsetHeight - y,
    left: isHTML ? winScrollBarX : element.clientLeft
  };
}

function contains(parent, child) {
  // $FlowFixMe: hasOwnProperty doesn't seem to work in tests
  var isShadow = Boolean(child.getRootNode && child.getRootNode().host); // First, attempt with faster native method

  if (parent.contains(child)) {
    return true;
  } // then fallback to custom implementation with Shadow DOM support
  else if (isShadow) {
      var next = child;

      do {
        if (next && parent.isSameNode(next)) {
          return true;
        } // $FlowFixMe: need a better way to handle this...


        next = next.parentNode || next.host;
      } while (next);
    } // Give up, the result is false


  return false;
}

function rectToClientRect(rect) {
  return Object.assign({}, rect, {
    left: rect.x,
    top: rect.y,
    right: rect.x + rect.width,
    bottom: rect.y + rect.height
  });
}

function getClientRectFromMixedType(element, clippingParent) {
  return clippingParent === viewport ? rectToClientRect(getViewportRect(element)) : isHTMLElement(clippingParent) ? getBoundingClientRect(clippingParent) : rectToClientRect(getDocumentRect(getDocumentElement(element)));
} // A "clipping parent" is an overflowable container with the characteristic of
// clipping (or hiding) overflowing elements with a position different from
// `initial`


function getClippingParents(element) {
  var clippingParents = listScrollParents(element);
  var canEscapeClipping = ['absolute', 'fixed'].indexOf(getComputedStyle(element).position) >= 0;
  var clipperElement = canEscapeClipping && isHTMLElement(element) ? getOffsetParent(element) : element;

  if (!isElement(clipperElement)) {
    return [];
  } // $FlowFixMe: https://github.com/facebook/flow/issues/1414


  return clippingParents.filter(function (clippingParent) {
    return isElement(clippingParent) && contains(clippingParent, clipperElement);
  });
} // Gets the maximum area that the element is visible in due to any number of
// clipping parents


function getClippingRect(element, boundary, rootBoundary) {
  var mainClippingParents = boundary === 'clippingParents' ? getClippingParents(element) : [].concat(boundary);
  var clippingParents = [].concat(mainClippingParents, [rootBoundary]);
  var firstClippingParent = clippingParents[0];
  var clippingRect = clippingParents.reduce(function (accRect, clippingParent) {
    var rect = getClientRectFromMixedType(element, clippingParent);
    var decorations = getDecorations(isHTMLElement(clippingParent) ? clippingParent : getDocumentElement(element));
    accRect.top = Math.max(rect.top + decorations.top, accRect.top);
    accRect.right = Math.min(rect.right - decorations.right, accRect.right);
    accRect.bottom = Math.min(rect.bottom - decorations.bottom, accRect.bottom);
    accRect.left = Math.max(rect.left + decorations.left, accRect.left);
    return accRect;
  }, getClientRectFromMixedType(element, firstClippingParent));
  clippingRect.width = clippingRect.right - clippingRect.left;
  clippingRect.height = clippingRect.bottom - clippingRect.top;
  clippingRect.x = clippingRect.left;
  clippingRect.y = clippingRect.top;
  return clippingRect;
}

function getFreshSideObject() {
  return {
    top: 0,
    right: 0,
    bottom: 0,
    left: 0
  };
}

function mergePaddingObject(paddingObject) {
  return Object.assign({}, getFreshSideObject(), {}, paddingObject);
}

function expandToHashMap(value, keys) {
  return keys.reduce(function (hashMap, key) {
    hashMap[key] = value;
    return hashMap;
  }, {});
}

function detectOverflow(state, options) {
  if (options === void 0) {
    options = {};
  }

  var _options = options,
      _options$placement = _options.placement,
      placement = _options$placement === void 0 ? state.placement : _options$placement,
      _options$boundary = _options.boundary,
      boundary = _options$boundary === void 0 ? clippingParents : _options$boundary,
      _options$rootBoundary = _options.rootBoundary,
      rootBoundary = _options$rootBoundary === void 0 ? viewport : _options$rootBoundary,
      _options$elementConte = _options.elementContext,
      elementContext = _options$elementConte === void 0 ? popper : _options$elementConte,
      _options$altBoundary = _options.altBoundary,
      altBoundary = _options$altBoundary === void 0 ? false : _options$altBoundary,
      _options$padding = _options.padding,
      padding = _options$padding === void 0 ? 0 : _options$padding;
  var paddingObject = mergePaddingObject(typeof padding !== 'number' ? padding : expandToHashMap(padding, basePlacements));
  var altContext = elementContext === popper ? reference : popper;
  var referenceElement = state.elements.reference;
  var popperRect = state.rects.popper;
  var element = state.elements[altBoundary ? altContext : elementContext];
  var clippingClientRect = getClippingRect(isElement(element) ? element : getDocumentElement(state.elements.popper), boundary, rootBoundary);
  var referenceClientRect = getBoundingClientRect(referenceElement);
  var popperOffsets = computeOffsets({
    reference: referenceClientRect,
    element: popperRect,
    strategy: 'absolute',
    placement: placement
  });
  var popperClientRect = rectToClientRect(Object.assign({}, popperRect, {}, popperOffsets));
  var elementClientRect = elementContext === popper ? popperClientRect : referenceClientRect; // positive = overflowing the clipping rect
  // 0 or negative = within the clipping rect

  var overflowOffsets = {
    top: clippingClientRect.top - elementClientRect.top + paddingObject.top,
    bottom: elementClientRect.bottom - clippingClientRect.bottom + paddingObject.bottom,
    left: clippingClientRect.left - elementClientRect.left + paddingObject.left,
    right: elementClientRect.right - clippingClientRect.right + paddingObject.right
  };
  var offsetData = state.modifiersData.offset; // Offsets can be applied only to the popper element

  if (elementContext === popper && offsetData) {
    var offset = offsetData[placement];
    Object.keys(overflowOffsets).forEach(function (key) {
      var multiply = [right, bottom].indexOf(key) >= 0 ? 1 : -1;
      var axis = [top, bottom].indexOf(key) >= 0 ? 'y' : 'x';
      overflowOffsets[key] += offset[axis] * multiply;
    });
  }

  return overflowOffsets;
}

function computeAutoPlacement(state, options) {
  if (options === void 0) {
    options = {};
  }

  var _options = options,
      placement = _options.placement,
      boundary = _options.boundary,
      rootBoundary = _options.rootBoundary,
      padding = _options.padding,
      flipVariations = _options.flipVariations;
  var variation = getVariation(placement);
  var placements = variation ? flipVariations ? variationPlacements : variationPlacements.filter(function (placement) {
    return getVariation(placement) === variation;
  }) : basePlacements; // $FlowFixMe: Flow seems to have problems with two array unions...

  var overflows = placements.reduce(function (acc, placement) {
    acc[placement] = detectOverflow(state, {
      placement: placement,
      boundary: boundary,
      rootBoundary: rootBoundary,
      padding: padding
    })[getBasePlacement(placement)];
    return acc;
  }, {});
  return Object.keys(overflows).sort(function (a, b) {
    return overflows[a] - overflows[b];
  });
}

function getExpandedFallbackPlacements(placement) {
  if (getBasePlacement(placement) === auto) {
    return [];
  }

  var oppositePlacement = getOppositePlacement(placement);
  return [getOppositeVariationPlacement(placement), oppositePlacement, getOppositeVariationPlacement(oppositePlacement)];
}

function flip(_ref) {
  var state = _ref.state,
      options = _ref.options,
      name = _ref.name;

  if (state.modifiersData[name]._skip) {
    return;
  }

  var specifiedFallbackPlacements = options.fallbackPlacements,
      padding = options.padding,
      boundary = options.boundary,
      rootBoundary = options.rootBoundary,
      _options$flipVariatio = options.flipVariations,
      flipVariations = _options$flipVariatio === void 0 ? true : _options$flipVariatio;
  var preferredPlacement = state.options.placement;
  var basePlacement = getBasePlacement(preferredPlacement);
  var isBasePlacement = basePlacement === preferredPlacement;
  var fallbackPlacements = specifiedFallbackPlacements || (isBasePlacement || !flipVariations ? [getOppositePlacement(preferredPlacement)] : getExpandedFallbackPlacements(preferredPlacement));
  var placements = [preferredPlacement].concat(fallbackPlacements).reduce(function (acc, placement) {
    return acc.concat(getBasePlacement(placement) === auto ? computeAutoPlacement(state, {
      placement: placement,
      boundary: boundary,
      rootBoundary: rootBoundary,
      padding: padding,
      flipVariations: flipVariations
    }) : placement);
  }, []);
  var referenceRect = state.rects.reference;
  var popperRect = state.rects.popper;
  var checksMap = new Map();
  var makeFallbackChecks = true;
  var firstFittingPlacement = placements[0];

  for (var i = 0; i < placements.length; i++) {
    var placement = placements[i];

    var _basePlacement = getBasePlacement(placement);

    var isStartVariation = getVariation(placement) === start;
    var isVertical = [top, bottom].indexOf(_basePlacement) >= 0;
    var len = isVertical ? 'width' : 'height';
    var overflow = detectOverflow(state, {
      placement: placement,
      boundary: boundary,
      rootBoundary: rootBoundary,
      padding: padding
    });
    var mainVariationSide = isVertical ? isStartVariation ? right : left : isStartVariation ? bottom : top;

    if (referenceRect[len] > popperRect[len]) {
      mainVariationSide = getOppositePlacement(mainVariationSide);
    }

    var altVariationSide = getOppositePlacement(mainVariationSide);
    var checks = [overflow[_basePlacement] <= 0, overflow[mainVariationSide] <= 0, overflow[altVariationSide] <= 0];

    if (checks.every(function (check) {
      return check;
    })) {
      firstFittingPlacement = placement;
      makeFallbackChecks = false;
      break;
    }

    checksMap.set(placement, checks);
  }

  if (makeFallbackChecks) {
    // `2` may be desired in some cases – research later
    var numberOfChecks = flipVariations ? 3 : 1;

    var _loop = function _loop(_i) {
      var fittingPlacement = placements.find(function (placement) {
        var checks = checksMap.get(placement);

        if (checks) {
          return checks.slice(0, _i).every(function (check) {
            return check;
          });
        }
      });

      if (fittingPlacement) {
        firstFittingPlacement = fittingPlacement;
        return "break";
      }
    };

    for (var _i = numberOfChecks; _i > 0; _i--) {
      var _ret = _loop(_i);

      if (_ret === "break") break;
    }
  }

  if (state.placement !== firstFittingPlacement) {
    state.modifiersData[name]._skip = true;
    state.placement = firstFittingPlacement;
    state.reset = true;
  }
}

const flip$1 = {
  name: 'flip',
  enabled: true,
  phase: 'main',
  fn: flip,
  requiresIfExists: ['offset'],
  data: {
    _skip: false
  }
};

function getAltAxis(axis) {
  return axis === 'x' ? 'y' : 'x';
}

function within(min, value, max) {
  return Math.max(min, Math.min(value, max));
}

function preventOverflow(_ref) {
  var state = _ref.state,
      options = _ref.options,
      name = _ref.name;
  var _options$mainAxis = options.mainAxis,
      checkMainAxis = _options$mainAxis === void 0 ? true : _options$mainAxis,
      _options$altAxis = options.altAxis,
      checkAltAxis = _options$altAxis === void 0 ? false : _options$altAxis,
      boundary = options.boundary,
      rootBoundary = options.rootBoundary,
      padding = options.padding,
      _options$tether = options.tether,
      tether = _options$tether === void 0 ? true : _options$tether,
      _options$tetherOffset = options.tetherOffset,
      tetherOffset = _options$tetherOffset === void 0 ? 0 : _options$tetherOffset;
  var overflow = detectOverflow(state, {
    boundary: boundary,
    rootBoundary: rootBoundary,
    padding: padding
  });
  var basePlacement = getBasePlacement(state.placement);
  var variation = getVariation(state.placement);
  var isBasePlacement = !variation;
  var mainAxis = getMainAxisFromPlacement(basePlacement);
  var altAxis = getAltAxis(mainAxis);
  var popperOffsets = state.modifiersData.popperOffsets;
  var referenceRect = state.rects.reference;
  var popperRect = state.rects.popper;
  var tetherOffsetValue = typeof tetherOffset === 'function' ? tetherOffset(Object.assign({}, state.rects, {
    placement: state.placement
  })) : tetherOffset;
  var data = {
    x: 0,
    y: 0
  };

  if (checkMainAxis) {
    var mainSide = mainAxis === 'y' ? top : left;
    var altSide = mainAxis === 'y' ? bottom : right;
    var len = mainAxis === 'y' ? 'height' : 'width';
    var offset = popperOffsets[mainAxis];
    var min = popperOffsets[mainAxis] + overflow[mainSide];
    var max = popperOffsets[mainAxis] - overflow[altSide];
    var additive = tether ? -popperRect[len] / 2 : 0;
    var minLen = variation === start ? referenceRect[len] : popperRect[len];
    var maxLen = variation === start ? -popperRect[len] : -referenceRect[len]; // We need to include the arrow in the calculation so the arrow doesn't go
    // outside the reference bounds

    var arrowElement = state.elements.arrow;
    var arrowRect = tether && arrowElement ? getLayoutRect(arrowElement) : {
      width: 0,
      height: 0
    };
    var arrowPaddingObject = state.modifiersData['arrow#persistent'] ? state.modifiersData['arrow#persistent'].padding : getFreshSideObject();
    var arrowPaddingMin = arrowPaddingObject[mainSide];
    var arrowPaddingMax = arrowPaddingObject[altSide]; // If the reference length is smaller than the arrow length, we don't want
    // to include its full size in the calculation. If the reference is small
    // and near the edge of a boundary, the popper can overflow even if the
    // reference is not overflowing as well (e.g. virtual elements with no
    // width or height)

    var arrowLen = within(0, referenceRect[len], arrowRect[len]);
    var minOffset = isBasePlacement ? referenceRect[len] / 2 - additive - arrowLen - arrowPaddingMin - tetherOffsetValue : minLen - arrowLen - arrowPaddingMin - tetherOffsetValue;
    var maxOffset = isBasePlacement ? -referenceRect[len] / 2 + additive + arrowLen + arrowPaddingMax + tetherOffsetValue : maxLen + arrowLen + arrowPaddingMax + tetherOffsetValue;
    var offsetModifierValue = state.modifiersData.offset ? state.modifiersData.offset[state.placement][mainAxis] : 0;
    var tetherMin = popperOffsets[mainAxis] + minOffset - offsetModifierValue;
    var tetherMax = popperOffsets[mainAxis] + maxOffset - offsetModifierValue;
    var preventedOffset = within(tether ? Math.min(min, tetherMin) : min, offset, tether ? Math.max(max, tetherMax) : max);
    popperOffsets[mainAxis] = preventedOffset;
    data[mainAxis] = preventedOffset - offset;
  }

  if (checkAltAxis) {
    var _mainSide = mainAxis === 'x' ? top : left;

    var _altSide = mainAxis === 'x' ? bottom : right;

    var _offset = popperOffsets[altAxis];

    var _min = _offset + overflow[_mainSide];

    var _max = _offset - overflow[_altSide];

    var _preventedOffset = within(_min, _offset, _max);

    state.modifiersData.popperOffsets[altAxis] = _preventedOffset;
    data[altAxis] = _preventedOffset - _offset;
  }

  state.modifiersData[name] = data;
}

const preventOverflow$1 = {
  name: 'preventOverflow',
  enabled: true,
  phase: 'main',
  fn: preventOverflow,
  requiresIfExists: ['offset']
};

function arrow(_ref) {
  var _state$modifiersData$;

  var state = _ref.state,
      name = _ref.name;
  var arrowElement = state.elements.arrow;
  var popperOffsets = state.modifiersData.popperOffsets;
  var basePlacement = getBasePlacement(state.placement);
  var axis = getMainAxisFromPlacement(basePlacement);
  var isVertical = [left, right].indexOf(basePlacement) >= 0;
  var len = isVertical ? 'height' : 'width';

  if (!arrowElement) {
    return;
  }

  var paddingObject = state.modifiersData[name + "#persistent"].padding;
  var arrowRect = getLayoutRect(arrowElement);
  var minProp = axis === 'y' ? top : left;
  var maxProp = axis === 'y' ? bottom : right;
  var endDiff = state.rects.reference[len] + state.rects.reference[axis] - popperOffsets[axis] - state.rects.popper[len];
  var startDiff = popperOffsets[axis] - state.rects.reference[axis];
  var centerToReference = endDiff / 2 - startDiff / 2; // Make sure the arrow doesn't overflow the popper if the center point is
  // outside of the popper bounds

  var center = within(paddingObject[minProp], state.rects.popper[len] / 2 - arrowRect[len] / 2 + centerToReference, state.rects.popper[len] - arrowRect[len] - paddingObject[maxProp]); // Prevents breaking syntax highlighting...

  var axisProp = axis;
  state.modifiersData[name] = (_state$modifiersData$ = {}, _state$modifiersData$[axisProp] = center, _state$modifiersData$);
}

function effect$2(_ref2) {
  var state = _ref2.state,
      options = _ref2.options,
      name = _ref2.name;
  var _options$element = options.element,
      arrowElement = _options$element === void 0 ? '[data-popper-arrow]' : _options$element,
      _options$padding = options.padding,
      padding = _options$padding === void 0 ? 0 : _options$padding; // CSS selector

  if (typeof arrowElement === 'string') {
    arrowElement = state.elements.popper.querySelector(arrowElement);

    if (!arrowElement) {
      return;
    }
  }

  if (!contains(state.elements.popper, arrowElement)) {
    if ("development" !== "production") {
      console.error(['Popper: "arrow" modifier\'s `element` must be a child of the popper', 'element.'].join(' '));
    }

    return;
  }

  state.elements.arrow = arrowElement;
  state.modifiersData[name + "#persistent"] = {
    padding: mergePaddingObject(typeof padding !== 'number' ? padding : expandToHashMap(padding, basePlacements))
  };
}

const arrow$1 = {
  name: 'arrow',
  enabled: true,
  phase: 'main',
  fn: arrow,
  effect: effect$2,
  requires: ['popperOffsets'],
  requiresIfExists: ['preventOverflow']
};

function getSideOffsets(overflow, rect, preventedOffsets) {
  if (preventedOffsets === void 0) {
    preventedOffsets = {
      x: 0,
      y: 0
    };
  }

  return {
    top: overflow.top - rect.height - preventedOffsets.y,
    right: overflow.right - rect.width + preventedOffsets.x,
    bottom: overflow.bottom - rect.height + preventedOffsets.y,
    left: overflow.left - rect.width - preventedOffsets.x
  };
}

function isAnySideFullyClipped(overflow) {
  return [top, right, bottom, left].some(function (side) {
    return overflow[side] >= 0;
  });
}

function hide(_ref) {
  var state = _ref.state,
      name = _ref.name;
  var referenceRect = state.rects.reference;
  var popperRect = state.rects.popper;
  var preventedOffsets = state.modifiersData.preventOverflow;
  var referenceOverflow = detectOverflow(state, {
    elementContext: 'reference'
  });
  var popperAltOverflow = detectOverflow(state, {
    altBoundary: true
  });
  var referenceClippingOffsets = getSideOffsets(referenceOverflow, referenceRect);
  var popperEscapeOffsets = getSideOffsets(popperAltOverflow, popperRect, preventedOffsets);
  var isReferenceHidden = isAnySideFullyClipped(referenceClippingOffsets);
  var hasPopperEscaped = isAnySideFullyClipped(popperEscapeOffsets);
  state.modifiersData[name] = {
    referenceClippingOffsets: referenceClippingOffsets,
    popperEscapeOffsets: popperEscapeOffsets,
    isReferenceHidden: isReferenceHidden,
    hasPopperEscaped: hasPopperEscaped
  };
  state.attributes.popper = Object.assign({}, state.attributes.popper, {
    'data-popper-reference-hidden': isReferenceHidden,
    'data-popper-escaped': hasPopperEscaped
  });
}

const hide$1 = {
  name: 'hide',
  enabled: true,
  phase: 'main',
  requiresIfExists: ['preventOverflow'],
  fn: hide
};

var defaultModifiers = [eventListeners, popperOffsets$1, computeStyles$1, applyStyles$1, offset$1, flip$1, preventOverflow$1, arrow$1, hide$1];
var createPopper$1 =
/*#__PURE__*/
popperGenerator({
  defaultModifiers: defaultModifiers
}); // eslint-disable-next-line import/no-unused-modules

const PwcChoices = class {
    constructor(hostRef) {
        registerInstance(this, hostRef);
        /**
         * The selection behaviour.
         * "multi" allows selection of multiple options.
         * "single" allows selection of only a single option (just like the native HTML select element).
         */
        this.type = "multi";
        /**
         * If true, the placeholder will be hidden if there are selected options.
         */
        this.autoHidePlaceholder = true;
        /**
         * This determines wheter the dropdown is open or not.
         */
        this.dropdownIsOpen = false;
        /**
         * If true, selected option bubbles will have close buttons.
         */
        this.showCloseButtons = true;
        /**
         * This determines what happens to dropdown items after they are selected.
         *
         * * `remove`: remove the selected item from the dropdown.
         * * `toggle`: dropdown items become toggles, that is, they remain in the dropdown and remove themself from the input bar when clicked again.
         * * `accumulate`: a click on a dropdown item is always a select command, and the item always stays in the dropdown.
         *
         * Both `remove` and `toggle` ensures the uniqueness of the selections, while `accumulate` allows for multiple selections of the same option.
         */
        this.dropdownSelectionBehaviour = "remove";
        /**
         * This will be displayed in the dropdown when there are no options left to choose.
         */
        this.noOptionsString = "No options to choose from.";
        /**
         * This is the mode of filtering we use to make given option objects distinct.
         * "none" disables the distinct filtering behaviour.
         */
        this.distinctMode = "none";
        /**
         * (multi select mode only) Maximum number of option bubbles to display in the input bar.
         *
         * * `countOnly`: display only the selected option count.
         * * `dynamic`: display the option bubbles if they fit. when they overflow, switch to selected option count.
         * * `bubblesOnly`: display only the option bubbles.
         */
        this.inputBarDisplayMode = `bubblesOnly`;
        /**
         * This is the text in the indicator of the options when they are in toggle mode.
         */
        this.dropdownToggleText = "\u2713";
        this.doNotEmitChangeEvent = false;
        this.selectedOptions = [];
        this.selectedOptionsChanged = createEvent(this, "selectedOptionsChanged", 7);
    }
    typeWatchHandler(newValue) {
        if (!AllTypeLiterals.includes(newValue)) {
            throwTypeLiteralNotSupported("type", newValue, AllTypeLiterals);
        }
    }
    optionsWatchHandler(newValue) {
        const newOptions = distinctFilter(resolveJson(newValue), this.distinctMode);
        const goneOptions = _.differenceBy(this.resolvedOptions, newOptions, o => o.value);
        if (this.selectedOptions &&
            this.selectedOptions.length > 0 &&
            this.selectedOptions.some(o => goneOptions.some(go => go.value === o.value))) {
            _.remove(this.selectedOptions, o => goneOptions.some(go => go.value === o.value));
            this.selectedOptions = [...this.selectedOptions];
        }
        this.resolvedOptions = newOptions || [];
    }
    distinctModeWatchHandler(newValue) {
        if (!AllDistinctModeLiterals.includes(newValue)) {
            throwTypeLiteralNotSupported("distinctMode", newValue, AllDistinctModeLiterals);
        }
    }
    selectedOptionsWatchHandler(newValue) {
        if (!this.doNotEmitChangeEvent) {
            this.selectedOptionsChanged.emit(newValue);
        }
        this.doNotEmitChangeEvent = false;
    }
    /**
     * Select an option by value.
     * @param value The value of the option to select.
     * @param force If false, runs the command through internal selection logic which adheres to config. Otherwise, bypasses all the internal logic and forcefully appends the option to the selected options list.
     */
    async select(value, force = false) {
        const option = _.find(this.resolvedOptions, { value });
        if (force) {
            switch (this.type) {
                case "single":
                    this.selectedOptions = [option];
                    break;
                case "multi":
                    this.selectedOptions = [...this.selectedOptions, option];
                    break;
            }
        }
        else {
            this.selectOption(option);
        }
    }
    /**
     * Deselect an option by value.
     * @param value The value of the option to deselect.
     */
    async deselect(value) {
        _.remove(this.selectedOptions, { value });
        this.selectedOptions = [...this.selectedOptions];
    }
    /**
     * Returns the values of currently selected options.
     */
    async getSelectedOptionsAsValues() {
        return this.selectedOptions.map(o => o.value);
    }
    /**
     * Returns the labels of currently selected options.
     */
    async getSelectedOptionsAsLabels() {
        return this.selectedOptions.map(o => o.label);
    }
    /**
     * Returns the selected options as objects (as passed in to this component).
     */
    async getSelectedOptionsAsObjects() {
        return this.selectedOptions;
    }
    optionDiscardedHandler(event) {
        const payload = event.detail;
        const newSelectedItems = [...this.selectedOptions];
        newSelectedItems.splice(payload.index, 1);
        this.selectedOptions = newSelectedItems;
    }
    inputBarClickedHandler() {
        this.dropdownIsOpen = !this.dropdownIsOpen;
    }
    dropdownItemClickedHandler(event) {
        const option = event.detail.option.original;
        this.selectOption(option);
    }
    selectOption(option) {
        switch (this.type) {
            case "multi":
                switch (this.dropdownSelectionBehaviour) {
                    case "accumulate":
                    case "remove":
                        this.selectedOptions = [...this.selectedOptions, option];
                        break;
                    case "toggle":
                        if (this.selectedOptions.some(o => o.value === option.value)) {
                            _.remove(this.selectedOptions, o => o.value === option.value);
                            this.selectedOptions = [...this.selectedOptions];
                        }
                        else {
                            this.selectedOptions = [...this.selectedOptions, option];
                        }
                        break;
                }
                break;
            case "single":
                this.selectedOptions = [option];
                this.dropdownIsOpen = false;
                break;
        }
    }
    windowClickHandler(event) {
        const eventTarget = event.target;
        const closestChoicesIsMe = eventTarget.closest("pwc-choices") === this.root;
        if (!closestChoicesIsMe) {
            this.dropdownIsOpen = false;
        }
    }
    selfClickHandler() {
        // stop propagation so windowClickHandler doesn't capture it.
        // event.stopPropagation();
    }
    componentWillLoad() {
        this.selectedOptions = this.selectedOptions || [];
        this.optionsWatchHandler(this.options);
        this.typeWatchHandler(this.type);
        this.distinctModeWatchHandler(this.distinctMode);
        this.doNotEmitChangeEvent = true;
        this.selectInitialSelectedOptions();
    }
    selectInitialSelectedOptions() {
        const initialSelections = _.filter(this.resolvedOptions, o => o.initialSelected && o.initialSelected === true);
        if (this.type === "single" && initialSelections.length > 1) {
            throw new Error("You have multiple initial selected options, but the type is `single`!");
        }
        this.selectedOptions = [...initialSelections];
    }
    componentDidLoad() {
        this.form = this.root.closest("form");
        if (this.form) {
            this.form.addEventListener("reset", this.handleFormReset.bind(this));
        }
    }
    componentDidUnload() {
        if (this.form) {
            this.form.removeEventListener("reset", this.handleFormReset.bind(this));
        }
    }
    handleFormReset() {
        this.doNotEmitChangeEvent = true;
        this.selectInitialSelectedOptions();
    }
    constructInputBar() {
        return (h("pwc-choices-input-bar", { options: this.selectedOptions, showCloseButtons: this.showCloseButtons, placeholder: this.placeholder, autoHidePlaceholder: this.autoHidePlaceholder, type: this.type, displayMode: this.inputBarDisplayMode, displayIcons: this.displayIconsOnInputBar, countTextProvider: this.countTextProvider }));
    }
    constructDropdown() {
        const dropdownOptions = this.dropdownSelectionBehaviour === "remove"
            ? _.differenceBy(this.resolvedOptions, this.selectedOptions, o => o.value)
            : this.resolvedOptions;
        return (h("pwc-choices-dropdown", { noOptionsString: this.noOptionsString, options: dropdownOptions, searchBarPlaceholder: this.searchBarPlaceholder, selectionBehaviour: this.dropdownSelectionBehaviour, selectedOptions: this.selectedOptions, toggleText: this.dropdownToggleText }));
    }
    render() {
        return [
            this.constructInputBar(),
            this.dropdownIsOpen && this.constructDropdown()
        ];
    }
    componentDidRender() {
        if (this.popperInstance) {
            this.popperInstance.destroy();
        }
        const dropdown = this.root.querySelector("pwc-choices-dropdown");
        const inputBar = this.root.querySelector("pwc-choices-input-bar");
        if (dropdown && inputBar) {
            const opts = this.popperjsOptionsForDropdown || {
                placement: "bottom",
                modifiers: [
                    {
                        name: "offset",
                        options: {
                            offset: [0, 6]
                        }
                    },
                    {
                        name: "preventOverflow",
                        options: {
                            mainAxis: true,
                            altAxis: false
                        }
                    },
                    {
                        name: "arrow"
                    },
                    {
                        name: "flip",
                        options: {
                            fallbackPlacements: ["top", "right", "left"]
                        }
                    }
                ]
            };
            this.popperInstance = createPopper$1(inputBar, dropdown, opts);
        }
    }
    get root() { return getElement(this); }
    static get watchers() { return {
        "type": ["typeWatchHandler"],
        "options": ["optionsWatchHandler"],
        "distinctMode": ["distinctModeWatchHandler"],
        "selectedOptions": ["selectedOptionsWatchHandler"]
    }; }
    static get style() { return "pwc-choices {\n  display: block;\n  margin: 0;\n  padding: 0;\n  font-size: medium;\n  font-family: Calibri, sans-serif;\n  -webkit-user-select: none;\n  -moz-user-select: none;\n  -ms-user-select: none;\n  user-select: none;\n  position: relative;\n  width: 100%;\n}"; }
};

export { PwcChoices as pwc_choices };
