import React, { Component } from 'react';
import { DomHandler, classNames, ObjectUtils, ZIndexUtils } from 'primereact/utils';
import { CSSTransition } from 'primereact/csstransition';
import { Ripple } from 'primereact/ripple';
import { Portal } from 'primereact/portal';
import PrimeReact from 'primereact/api';

function _classCallCheck(instance, Constructor) {
  if (!(instance instanceof Constructor)) {
    throw new TypeError("Cannot call a class as a function");
  }
}

function _defineProperties(target, props) {
  for (var i = 0; i < props.length; i++) {
    var descriptor = props[i];
    descriptor.enumerable = descriptor.enumerable || false;
    descriptor.configurable = true;
    if ("value" in descriptor) descriptor.writable = true;
    Object.defineProperty(target, descriptor.key, descriptor);
  }
}

function _createClass(Constructor, protoProps, staticProps) {
  if (protoProps) _defineProperties(Constructor.prototype, protoProps);
  if (staticProps) _defineProperties(Constructor, staticProps);
  Object.defineProperty(Constructor, "prototype", {
    writable: false
  });
  return Constructor;
}

function _assertThisInitialized(self) {
  if (self === void 0) {
    throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
  }

  return self;
}

function _setPrototypeOf(o, p) {
  _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
    o.__proto__ = p;
    return o;
  };

  return _setPrototypeOf(o, p);
}

function _inherits(subClass, superClass) {
  if (typeof superClass !== "function" && superClass !== null) {
    throw new TypeError("Super expression must either be null or a function");
  }

  subClass.prototype = Object.create(superClass && superClass.prototype, {
    constructor: {
      value: subClass,
      writable: true,
      configurable: true
    }
  });
  Object.defineProperty(subClass, "prototype", {
    writable: false
  });
  if (superClass) _setPrototypeOf(subClass, superClass);
}

function _typeof(obj) {
  "@babel/helpers - typeof";

  return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (obj) {
    return typeof obj;
  } : function (obj) {
    return obj && "function" == typeof Symbol && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
  }, _typeof(obj);
}

function _possibleConstructorReturn(self, call) {
  if (call && (_typeof(call) === "object" || typeof call === "function")) {
    return call;
  } else if (call !== void 0) {
    throw new TypeError("Derived constructors may only return object or undefined");
  }

  return _assertThisInitialized(self);
}

function _getPrototypeOf(o) {
  _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) {
    return o.__proto__ || Object.getPrototypeOf(o);
  };
  return _getPrototypeOf(o);
}

function _defineProperty(obj, key, value) {
  if (key in obj) {
    Object.defineProperty(obj, key, {
      value: value,
      enumerable: true,
      configurable: true,
      writable: true
    });
  } else {
    obj[key] = value;
  }

  return obj;
}

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

var ContextMenuSub = /*#__PURE__*/function (_Component) {
  _inherits(ContextMenuSub, _Component);

  var _super = _createSuper(ContextMenuSub);

  function ContextMenuSub(props) {
    var _this;

    _classCallCheck(this, ContextMenuSub);

    _this = _super.call(this, props);
    _this.state = {
      activeItem: null
    };
    _this.onEnter = _this.onEnter.bind(_assertThisInitialized(_this));
    _this.submenuRef = /*#__PURE__*/React.createRef();
    return _this;
  }

  _createClass(ContextMenuSub, [{
    key: "onItemMouseEnter",
    value: function onItemMouseEnter(event, item) {
      if (item.disabled) {
        event.preventDefault();
        return;
      }

      this.setState({
        activeItem: item
      });
    }
  }, {
    key: "onItemClick",
    value: function onItemClick(event, item) {
      if (item.disabled) {
        event.preventDefault();
        return;
      }

      if (!item.url) {
        event.preventDefault();
      }

      if (item.command) {
        item.command({
          originalEvent: event,
          item: item
        });
      }

      if (!item.items) {
        this.props.onLeafClick(event);
      }
    }
  }, {
    key: "position",
    value: function position() {
      var parentItem = this.submenuRef.current.parentElement;
      var containerOffset = DomHandler.getOffset(this.submenuRef.current.parentElement);
      var viewport = DomHandler.getViewport();
      var sublistWidth = this.submenuRef.current.offsetParent ? this.submenuRef.current.offsetWidth : DomHandler.getHiddenElementOuterWidth(this.submenuRef.current);
      var itemOuterWidth = DomHandler.getOuterWidth(parentItem.children[0]);
      this.submenuRef.current.style.top = '0px';

      if (parseInt(containerOffset.left, 10) + itemOuterWidth + sublistWidth > viewport.width - DomHandler.calculateScrollbarWidth()) {
        this.submenuRef.current.style.left = -1 * sublistWidth + 'px';
      } else {
        this.submenuRef.current.style.left = itemOuterWidth + 'px';
      }
    }
  }, {
    key: "onEnter",
    value: function onEnter() {
      this.position();
    }
  }, {
    key: "isActive",
    value: function isActive() {
      return this.props.root || !this.props.resetMenu;
    }
  }, {
    key: "componentDidUpdate",
    value: function componentDidUpdate() {
      if (this.isActive()) {
        this.position();
      }
    }
  }, {
    key: "renderSeparator",
    value: function renderSeparator(index) {
      return /*#__PURE__*/React.createElement("li", {
        key: 'separator_' + index,
        className: "p-menu-separator",
        role: "separator"
      });
    }
  }, {
    key: "renderSubmenu",
    value: function renderSubmenu(item) {
      if (item.items) {
        return /*#__PURE__*/React.createElement(ContextMenuSub, {
          model: item.items,
          resetMenu: item !== this.state.activeItem,
          onLeafClick: this.props.onLeafClick
        });
      }

      return null;
    }
  }, {
    key: "renderMenuitem",
    value: function renderMenuitem(item, index) {
      var _this2 = this;

      var active = this.state.activeItem === item;
      var className = classNames('p-menuitem', {
        'p-menuitem-active': active
      }, item.className);
      var linkClassName = classNames('p-menuitem-link', {
        'p-disabled': item.disabled
      });
      var iconClassName = classNames('p-menuitem-icon', item.icon);
      var submenuIconClassName = 'p-submenu-icon pi pi-angle-right';
      var icon = item.icon && /*#__PURE__*/React.createElement("span", {
        className: iconClassName
      });
      var label = item.label && /*#__PURE__*/React.createElement("span", {
        className: "p-menuitem-text"
      }, item.label);
      var submenuIcon = item.items && /*#__PURE__*/React.createElement("span", {
        className: submenuIconClassName
      });
      var submenu = this.renderSubmenu(item);
      var content = /*#__PURE__*/React.createElement("a", {
        href: item.url || '#',
        className: linkClassName,
        target: item.target,
        onClick: function onClick(event) {
          return _this2.onItemClick(event, item, index);
        },
        role: "menuitem",
        "aria-haspopup": item.items != null,
        "aria-disabled": item.disabled
      }, icon, label, submenuIcon, /*#__PURE__*/React.createElement(Ripple, null));

      if (item.template) {
        var defaultContentOptions = {
          onClick: function onClick(event) {
            return _this2.onItemClick(event, item, index);
          },
          className: linkClassName,
          labelClassName: 'p-menuitem-text',
          iconClassName: iconClassName,
          submenuIconClassName: submenuIconClassName,
          element: content,
          props: this.props,
          active: active
        };
        content = ObjectUtils.getJSXElement(item.template, item, defaultContentOptions);
      }

      return /*#__PURE__*/React.createElement("li", {
        key: item.label + '_' + index,
        role: "none",
        className: className,
        style: item.style,
        onMouseEnter: function onMouseEnter(event) {
          return _this2.onItemMouseEnter(event, item);
        }
      }, content, submenu);
    }
  }, {
    key: "renderItem",
    value: function renderItem(item, index) {
      if (item.separator) return this.renderSeparator(index);else return this.renderMenuitem(item, index);
    }
  }, {
    key: "renderMenu",
    value: function renderMenu() {
      var _this3 = this;

      if (this.props.model) {
        return this.props.model.map(function (item, index) {
          return _this3.renderItem(item, index);
        });
      }

      return null;
    }
  }, {
    key: "render",
    value: function render() {
      var className = classNames({
        'p-submenu-list': !this.props.root
      });
      var submenu = this.renderMenu();
      var isActive = this.isActive();
      return /*#__PURE__*/React.createElement(CSSTransition, {
        nodeRef: this.submenuRef,
        classNames: "p-contextmenusub",
        "in": isActive,
        timeout: {
          enter: 0,
          exit: 0
        },
        unmountOnExit: true,
        onEnter: this.onEnter
      }, /*#__PURE__*/React.createElement("ul", {
        ref: this.submenuRef,
        className: className
      }, submenu));
    }
  }], [{
    key: "getDerivedStateFromProps",
    value: function getDerivedStateFromProps(nextProps, prevState) {
      if (nextProps.resetMenu === true) {
        return {
          activeItem: null
        };
      }

      return null;
    }
  }]);

  return ContextMenuSub;
}(Component);

_defineProperty(ContextMenuSub, "defaultProps", {
  model: null,
  root: false,
  className: null,
  resetMenu: false,
  onLeafClick: null
});

var ContextMenu = /*#__PURE__*/function (_Component2) {
  _inherits(ContextMenu, _Component2);

  var _super2 = _createSuper(ContextMenu);

  function ContextMenu(props) {
    var _this4;

    _classCallCheck(this, ContextMenu);

    _this4 = _super2.call(this, props);
    _this4.state = {
      visible: false,
      reshow: false,
      resetMenu: false
    };
    _this4.onMenuClick = _this4.onMenuClick.bind(_assertThisInitialized(_this4));
    _this4.onLeafClick = _this4.onLeafClick.bind(_assertThisInitialized(_this4));
    _this4.onMenuMouseEnter = _this4.onMenuMouseEnter.bind(_assertThisInitialized(_this4));
    _this4.onEnter = _this4.onEnter.bind(_assertThisInitialized(_this4));
    _this4.onEntered = _this4.onEntered.bind(_assertThisInitialized(_this4));
    _this4.onExit = _this4.onExit.bind(_assertThisInitialized(_this4));
    _this4.onExited = _this4.onExited.bind(_assertThisInitialized(_this4));
    _this4.menuRef = /*#__PURE__*/React.createRef();
    return _this4;
  }

  _createClass(ContextMenu, [{
    key: "onMenuClick",
    value: function onMenuClick() {
      this.setState({
        resetMenu: false
      });
    }
  }, {
    key: "onMenuMouseEnter",
    value: function onMenuMouseEnter() {
      this.setState({
        resetMenu: false
      });
    }
  }, {
    key: "show",
    value: function show(event) {
      var _this5 = this;

      if (!(event instanceof Event)) {
        event.persist();
      }

      event.stopPropagation();
      event.preventDefault();
      this.currentEvent = event;

      if (this.state.visible) {
        this.setState({
          reshow: true
        });
      } else {
        this.setState({
          visible: true
        }, function () {
          if (_this5.props.onShow) {
            _this5.props.onShow(_this5.currentEvent);
          }
        });
      }
    }
  }, {
    key: "hide",
    value: function hide(event) {
      var _this6 = this;

      if (!(event instanceof Event)) {
        event.persist();
      }

      this.currentEvent = event;
      this.setState({
        visible: false,
        reshow: false
      }, function () {
        if (_this6.props.onHide) {
          _this6.props.onHide(_this6.currentEvent);
        }
      });
    }
  }, {
    key: "onEnter",
    value: function onEnter() {
      if (this.props.autoZIndex) {
        ZIndexUtils.set('menu', this.menuRef.current, PrimeReact.autoZIndex, this.props.baseZIndex || PrimeReact.zIndex['menu']);
      }

      this.position(this.currentEvent);
    }
  }, {
    key: "onEntered",
    value: function onEntered() {
      this.bindDocumentListeners();
    }
  }, {
    key: "onExit",
    value: function onExit() {
      this.currentEvent = null;
      this.unbindDocumentListeners();
    }
  }, {
    key: "onExited",
    value: function onExited() {
      ZIndexUtils.clear(this.menuRef.current);
    }
  }, {
    key: "position",
    value: function position(event) {
      if (event) {
        var left = event.pageX + 1;
        var top = event.pageY + 1;
        var width = this.menuRef.current.offsetParent ? this.menuRef.current.offsetWidth : DomHandler.getHiddenElementOuterWidth(this.menuRef.current);
        var height = this.menuRef.current.offsetParent ? this.menuRef.current.offsetHeight : DomHandler.getHiddenElementOuterHeight(this.menuRef.current);
        var viewport = DomHandler.getViewport(); //flip

        if (left + width - document.body.scrollLeft > viewport.width) {
          left -= width;
        } //flip


        if (top + height - document.body.scrollTop > viewport.height) {
          top -= height;
        } //fit


        if (left < document.body.scrollLeft) {
          left = document.body.scrollLeft;
        } //fit


        if (top < document.body.scrollTop) {
          top = document.body.scrollTop;
        }

        this.menuRef.current.style.left = left + 'px';
        this.menuRef.current.style.top = top + 'px';
      }
    }
  }, {
    key: "onLeafClick",
    value: function onLeafClick(event) {
      this.setState({
        resetMenu: true
      });
      this.hide(event);
      event.stopPropagation();
    }
  }, {
    key: "isOutsideClicked",
    value: function isOutsideClicked(event) {
      return this.menuRef && this.menuRef.current && !(this.menuRef.current.isSameNode(event.target) || this.menuRef.current.contains(event.target));
    }
  }, {
    key: "bindDocumentListeners",
    value: function bindDocumentListeners() {
      this.bindDocumentResizeListener();
      this.bindDocumentClickListener();
    }
  }, {
    key: "unbindDocumentListeners",
    value: function unbindDocumentListeners() {
      this.unbindDocumentResizeListener();
      this.unbindDocumentClickListener();
    }
  }, {
    key: "bindDocumentClickListener",
    value: function bindDocumentClickListener() {
      var _this7 = this;

      if (!this.documentClickListener) {
        this.documentClickListener = function (event) {
          if (_this7.isOutsideClicked(event) && event.button !== 2) {
            _this7.hide(event);

            _this7.setState({
              resetMenu: true
            });
          }
        };

        document.addEventListener('click', this.documentClickListener);
      }
    }
  }, {
    key: "bindDocumentContextMenuListener",
    value: function bindDocumentContextMenuListener() {
      var _this8 = this;

      if (!this.documentContextMenuListener) {
        this.documentContextMenuListener = function (event) {
          _this8.show(event);
        };

        document.addEventListener('contextmenu', this.documentContextMenuListener);
      }
    }
  }, {
    key: "bindDocumentResizeListener",
    value: function bindDocumentResizeListener() {
      var _this9 = this;

      if (!this.documentResizeListener) {
        this.documentResizeListener = function (event) {
          if (_this9.state.visible && !DomHandler.isTouchDevice()) {
            _this9.hide(event);
          }
        };

        window.addEventListener('resize', this.documentResizeListener);
      }
    }
  }, {
    key: "unbindDocumentClickListener",
    value: function unbindDocumentClickListener() {
      if (this.documentClickListener) {
        document.removeEventListener('click', this.documentClickListener);
        this.documentClickListener = null;
      }
    }
  }, {
    key: "unbindDocumentContextMenuListener",
    value: function unbindDocumentContextMenuListener() {
      if (this.documentContextMenuListener) {
        document.removeEventListener('contextmenu', this.documentContextMenuListener);
        this.documentContextMenuListener = null;
      }
    }
  }, {
    key: "unbindDocumentResizeListener",
    value: function unbindDocumentResizeListener() {
      if (this.documentResizeListener) {
        window.removeEventListener('resize', this.documentResizeListener);
        this.documentResizeListener = null;
      }
    }
  }, {
    key: "componentDidMount",
    value: function componentDidMount() {
      if (this.props.global) {
        this.bindDocumentContextMenuListener();
      }
    }
  }, {
    key: "componentDidUpdate",
    value: function componentDidUpdate(prevProps, prevState) {
      var _this10 = this;

      if (this.state.visible && (prevState.reshow !== this.state.reshow || prevProps.model !== this.props.model)) {
        var event = this.currentEvent;
        this.setState({
          visible: false,
          reshow: false,
          rePosition: false,
          resetMenu: true
        }, function () {
          return _this10.show(event);
        });
      }
    }
  }, {
    key: "componentWillUnmount",
    value: function componentWillUnmount() {
      this.unbindDocumentListeners();
      this.unbindDocumentContextMenuListener();
      ZIndexUtils.clear(this.menuRef.current);
    }
  }, {
    key: "renderContextMenu",
    value: function renderContextMenu() {
      var className = classNames('p-contextmenu p-component', this.props.className);
      return /*#__PURE__*/React.createElement(CSSTransition, {
        nodeRef: this.menuRef,
        classNames: "p-contextmenu",
        "in": this.state.visible,
        timeout: {
          enter: 250,
          exit: 0
        },
        options: this.props.transitionOptions,
        unmountOnExit: true,
        onEnter: this.onEnter,
        onEntered: this.onEntered,
        onExit: this.onExit,
        onExited: this.onExited
      }, /*#__PURE__*/React.createElement("div", {
        ref: this.menuRef,
        id: this.props.id,
        className: className,
        style: this.props.style,
        onClick: this.onMenuClick,
        onMouseEnter: this.onMenuMouseEnter
      }, /*#__PURE__*/React.createElement(ContextMenuSub, {
        model: this.props.model,
        root: true,
        resetMenu: this.state.resetMenu,
        onLeafClick: this.onLeafClick
      })));
    }
  }, {
    key: "render",
    value: function render() {
      var element = this.renderContextMenu();
      return /*#__PURE__*/React.createElement(Portal, {
        element: element,
        appendTo: this.props.appendTo
      });
    }
  }]);

  return ContextMenu;
}(Component);

_defineProperty(ContextMenu, "defaultProps", {
  id: null,
  model: null,
  style: null,
  className: null,
  global: false,
  autoZIndex: true,
  baseZIndex: 0,
  appendTo: null,
  transitionOptions: null,
  onShow: null,
  onHide: null
});

export { ContextMenu };