import React, { Component } from 'react';
import { DomHandler, classNames, ObjectUtils } from 'primereact/utils';
import { Ripple } from 'primereact/ripple';

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

  var _super = _createSuper(MegaMenu);

  function MegaMenu(props) {
    var _this;

    _classCallCheck(this, MegaMenu);

    _this = _super.call(this, props);
    _this.state = {
      activeItem: null
    };
    _this.onLeafClick = _this.onLeafClick.bind(_assertThisInitialized(_this));
    return _this;
  }

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

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

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

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

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

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

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

      if (item.items) {
        if (this.state.activeItem && this.state.activeItem === item) {
          this.setState({
            activeItem: null
          });
        } else {
          this.setState({
            activeItem: item
          });
        }
      }

      event.preventDefault();
    }
  }, {
    key: "onCategoryKeyDown",
    value: function onCategoryKeyDown(event, item) {
      var listItem = event.currentTarget.parentElement;

      switch (event.which) {
        //down
        case 40:
          if (this.isHorizontal()) this.expandMenu(item);else this.navigateToNextItem(listItem);
          event.preventDefault();
          break;
        //up

        case 38:
          if (this.isVertical()) this.navigateToPrevItem(listItem);else if (item.items && item === this.state.activeItem) this.collapseMenu();
          event.preventDefault();
          break;
        //right

        case 39:
          if (this.isHorizontal()) this.navigateToNextItem(listItem);else this.expandMenu(item);
          event.preventDefault();
          break;
        //left

        case 37:
          if (this.isHorizontal()) this.navigateToPrevItem(listItem);else if (item.items && item === this.state.activeItem) this.collapseMenu();
          event.preventDefault();
          break;
      }
    }
  }, {
    key: "expandMenu",
    value: function expandMenu(item) {
      if (item.items) {
        this.setState({
          activeItem: item
        });
      }
    }
  }, {
    key: "collapseMenu",
    value: function collapseMenu(item) {
      this.setState({
        activeItem: null
      });
    }
  }, {
    key: "findNextItem",
    value: function findNextItem(item) {
      var nextItem = item.nextElementSibling;
      if (nextItem) return DomHandler.hasClass(nextItem, 'p-disabled') || !DomHandler.hasClass(nextItem, 'p-menuitem') ? this.findNextItem(nextItem) : nextItem;else return null;
    }
  }, {
    key: "findPrevItem",
    value: function findPrevItem(item) {
      var prevItem = item.previousElementSibling;
      if (prevItem) return DomHandler.hasClass(prevItem, 'p-disabled') || !DomHandler.hasClass(prevItem, 'p-menuitem') ? this.findPrevItem(prevItem) : prevItem;else return null;
    }
  }, {
    key: "navigateToNextItem",
    value: function navigateToNextItem(listItem) {
      var nextItem = this.findNextItem(listItem);

      if (nextItem) {
        nextItem.children[0].focus();
      }
    }
  }, {
    key: "navigateToPrevItem",
    value: function navigateToPrevItem(listItem) {
      var prevItem = this.findPrevItem(listItem);

      if (prevItem) {
        prevItem.children[0].focus();
      }
    }
  }, {
    key: "isHorizontal",
    value: function isHorizontal() {
      return this.props.orientation === 'horizontal';
    }
  }, {
    key: "isVertical",
    value: function isVertical() {
      return this.props.orientation === 'vertical';
    }
  }, {
    key: "getColumnClassName",
    value: function getColumnClassName(category) {
      var length = category.items ? category.items.length : 0;
      var columnClass;

      switch (length) {
        case 2:
          columnClass = 'p-megamenu-col-6';
          break;

        case 3:
          columnClass = 'p-megamenu-col-4';
          break;

        case 4:
          columnClass = 'p-megamenu-col-3';
          break;

        case 6:
          columnClass = 'p-megamenu-col-2';
          break;

        default:
          columnClass = 'p-megamenu-col-12';
          break;
      }

      return columnClass;
    }
  }, {
    key: "componentDidMount",
    value: function componentDidMount() {
      var _this2 = this;

      if (!this.documentClickListener) {
        this.documentClickListener = function (event) {
          if (_this2.container && !_this2.container.contains(event.target)) {
            _this2.setState({
              activeItem: null
            });
          }
        };

        document.addEventListener('click', this.documentClickListener);
      }
    }
  }, {
    key: "componentWillUnmount",
    value: function componentWillUnmount() {
      if (this.documentClickListener) {
        document.removeEventListener('click', this.documentClickListener);
        this.documentClickListener = null;
      }
    }
  }, {
    key: "renderSeparator",
    value: function renderSeparator(index) {
      return /*#__PURE__*/React.createElement("li", {
        key: 'separator_' + index,
        className: "p-menu-separator",
        role: "separator"
      });
    }
  }, {
    key: "renderSubmenuIcon",
    value: function renderSubmenuIcon(item) {
      if (item.items) {
        var className = classNames('p-submenu-icon pi', {
          'pi-angle-down': this.isHorizontal(),
          'pi-angle-right': this.isVertical()
        });
        return /*#__PURE__*/React.createElement("span", {
          className: className
        });
      }

      return null;
    }
  }, {
    key: "renderSubmenuItem",
    value: function renderSubmenuItem(item, index) {
      var _this3 = this;

      if (item.separator) {
        return this.renderSeparator(index);
      } else {
        var className = classNames('p-menuitem', item.className);
        var linkClassName = classNames('p-menuitem-link', {
          'p-disabled': item.disabled
        });
        var iconClassName = classNames(item.icon, 'p-menuitem-icon');
        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 content = /*#__PURE__*/React.createElement("a", {
          href: item.url || '#',
          className: linkClassName,
          target: item.target,
          onClick: function onClick(event) {
            return _this3.onLeafClick(event, item);
          },
          role: "menuitem",
          "aria-disabled": item.disabled
        }, icon, label, /*#__PURE__*/React.createElement(Ripple, null));

        if (item.template) {
          var defaultContentOptions = {
            onClick: function onClick(event) {
              return _this3.onLeafClick(event, item);
            },
            className: linkClassName,
            labelClassName: 'p-menuitem-text',
            iconClassName: iconClassName,
            element: content,
            props: this.props
          };
          content = ObjectUtils.getJSXElement(item.template, item, defaultContentOptions);
        }

        return /*#__PURE__*/React.createElement("li", {
          key: item.label + '_' + index,
          className: className,
          style: item.style,
          role: "none"
        }, content);
      }
    }
  }, {
    key: "renderSubmenu",
    value: function renderSubmenu(submenu) {
      var _this4 = this;

      var className = classNames('p-megamenu-submenu-header', {
        'p-disabled': submenu.disabled
      }, submenu.className);
      var items = submenu.items.map(function (item, index) {
        return _this4.renderSubmenuItem(item, index);
      });
      return /*#__PURE__*/React.createElement(React.Fragment, {
        key: submenu.label
      }, /*#__PURE__*/React.createElement("li", {
        className: className,
        style: submenu.style,
        role: "presentation",
        "aria-disabled": submenu.disabled
      }, submenu.label), items);
    }
  }, {
    key: "renderSubmenus",
    value: function renderSubmenus(column) {
      var _this5 = this;

      return column.map(function (submenu, index) {
        return _this5.renderSubmenu(submenu, index);
      });
    }
  }, {
    key: "renderColumn",
    value: function renderColumn(category, column, index, columnClassName) {
      var submenus = this.renderSubmenus(column);
      return /*#__PURE__*/React.createElement("div", {
        key: category.label + '_column_' + index,
        className: columnClassName
      }, /*#__PURE__*/React.createElement("ul", {
        className: "p-megamenu-submenu",
        role: "menu"
      }, submenus));
    }
  }, {
    key: "renderColumns",
    value: function renderColumns(category) {
      var _this6 = this;

      if (category.items) {
        var columnClassName = this.getColumnClassName(category);
        return category.items.map(function (column, index) {
          return _this6.renderColumn(category, column, index, columnClassName);
        });
      }

      return null;
    }
  }, {
    key: "renderCategoryPanel",
    value: function renderCategoryPanel(category) {
      if (category.items) {
        var columns = this.renderColumns(category);
        return /*#__PURE__*/React.createElement("div", {
          className: "p-megamenu-panel"
        }, /*#__PURE__*/React.createElement("div", {
          className: "p-megamenu-grid"
        }, columns));
      }

      return null;
    }
  }, {
    key: "renderCategory",
    value: function renderCategory(category, index) {
      var _this7 = this;

      var className = classNames('p-menuitem', {
        'p-menuitem-active': category === this.state.activeItem
      }, category.className);
      var linkClassName = classNames('p-menuitem-link', {
        'p-disabled': category.disabled
      });
      var iconClassName = classNames('p-menuitem-icon', category.icon);
      var icon = category.icon && /*#__PURE__*/React.createElement("span", {
        className: iconClassName
      });
      var label = category.label && /*#__PURE__*/React.createElement("span", {
        className: "p-menuitem-text"
      }, category.label);
      var itemContent = category.template ? ObjectUtils.getJSXElement(category.template, category) : null;
      var submenuIcon = this.renderSubmenuIcon(category);
      var panel = this.renderCategoryPanel(category);
      return /*#__PURE__*/React.createElement("li", {
        key: category.label + '_' + index,
        className: className,
        style: category.style,
        onMouseEnter: function onMouseEnter(e) {
          return _this7.onCategoryMouseEnter(e, category);
        },
        role: "none"
      }, /*#__PURE__*/React.createElement("a", {
        href: category.url || '#',
        className: linkClassName,
        target: category.target,
        onClick: function onClick(e) {
          return _this7.onCategoryClick(e, category);
        },
        onKeyDown: function onKeyDown(e) {
          return _this7.onCategoryKeyDown(e, category);
        },
        role: "menuitem",
        "aria-haspopup": category.items != null
      }, icon, label, itemContent, submenuIcon, /*#__PURE__*/React.createElement(Ripple, null)), panel);
    }
  }, {
    key: "renderMenu",
    value: function renderMenu() {
      var _this8 = this;

      if (this.props.model) {
        return this.props.model.map(function (item, index) {
          return _this8.renderCategory(item, index, true);
        });
      }

      return null;
    }
  }, {
    key: "renderCustomContent",
    value: function renderCustomContent() {
      if (this.props.children) {
        return /*#__PURE__*/React.createElement("div", {
          className: "p-megamenu-custom"
        }, this.props.children);
      }

      return null;
    }
  }, {
    key: "render",
    value: function render() {
      var _this9 = this;

      var className = classNames('p-megamenu p-component', {
        'p-megamenu-horizontal': this.props.orientation === 'horizontal',
        'p-megamenu-vertical': this.props.orientation === 'vertical'
      }, this.props.className);
      var menu = this.renderMenu();
      var customContent = this.renderCustomContent();
      return /*#__PURE__*/React.createElement("div", {
        ref: function ref(el) {
          return _this9.container = el;
        },
        id: this.props.id,
        className: className,
        style: this.props.style
      }, /*#__PURE__*/React.createElement("ul", {
        className: "p-megamenu-root-list",
        role: "menubar"
      }, menu), customContent);
    }
  }]);

  return MegaMenu;
}(Component);

_defineProperty(MegaMenu, "defaultProps", {
  id: null,
  model: null,
  style: null,
  className: null,
  orientation: 'horizontal'
});

export { MegaMenu };