var ConstructionArc = ConstructionArc || {};

ConstructionArc.scrolled = 0;

ConstructionArc.createEvent = function (eventName) {
	var event;
	if (typeof window.Event === 'function') {
		event = new Event(eventName);
	} else {
		event = document.createEvent('Event');
		event.initEvent(eventName, true, false);
	}
	return event;
};

ConstructionArc.coverModals = {

	init: function () {
		if (document.querySelector('.cover-modal')) {
			
			this.onToggle();

			this.outsideUntoggle();

			this.closeOnEscape();

			this.hideAndShowModals();
		}
	},
	
	onToggle: function () {
		document.querySelectorAll('.cover-modal').forEach(function (element) {
			element.addEventListener('toggled', function (event) {
				var modal = event.target,
					body = document.body;

				if (modal.classList.contains('active')) {
					body.classList.add('showing-modal');
				} else {
					body.classList.remove('showing-modal');
					body.classList.add('hiding-modal');

					setTimeout(function () {
						body.classList.remove('hiding-modal');
					}, 500);
				}
			});
		});
	},
	
	outsideUntoggle: function () {
		document.addEventListener('click', function (event) {
			var target = event.target;
			var modal = document.querySelector('.cover-modal.active');

			if (target === modal) {
				this.untoggleModal(target);
			}
		}.bind(this));
	},
	
	closeOnEscape: function () {
		document.addEventListener('keydown', function (event) {
			if (event.keyCode === 27) {
				event.preventDefault();
				document.querySelectorAll('.cover-modal.active').forEach(function (element) {
					this.untoggleModal(element);
				}.bind(this));
			}
		}.bind(this));
	},
	
	hideAndShowModals: function () {
		var _doc = document,
			_win = window,
			modals = _doc.querySelectorAll('.cover-modal'),
			htmlStyle = _doc.documentElement.style,
			adminBar = _doc.querySelector('#wpadminbar');

		function getAdminBarHeight(negativeValue) {
			var height,
				currentScroll = _win.pageYOffset;

			if (adminBar) {
				height = currentScroll + adminBar.getBoundingClientRect().height;

				return negativeValue ? -height : height;
			}

			return currentScroll === 0 ? 0 : -currentScroll;
		}

		function htmlStyles() {
			var overflow = _win.innerHeight > _doc.documentElement.getBoundingClientRect().height;

			return {
				'overflow-y': overflow ? 'hidden' : 'scroll',
				position: 'fixed',
				width: '100%',
				top: getAdminBarHeight(true) + 'px',
				left: 0
			};
		}

		
		modals.forEach(function (modal) {
			modal.addEventListener('toggle-target-before-inactive', function (event) {
				var styles = htmlStyles(),
					offsetY = _win.pageYOffset,
					paddingTop = (Math.abs(getAdminBarHeight()) - offsetY) + 'px',
					mQuery = _win.matchMedia('(max-width: 600px)');

				if (event.target !== modal) {
					return;
				}

				Object.keys(styles).forEach(function (styleKey) {
					htmlStyle.setProperty(styleKey, styles[styleKey]);
				});

				_win.ConstructionArc.scrolled = parseInt(styles.top, 10);

				if (adminBar) {
					_doc.body.style.setProperty('padding-top', paddingTop);

					if (mQuery.matches) {
						if (offsetY >= getAdminBarHeight()) {
							modal.style.setProperty('top', 0);
						} else {
							modal.style.setProperty('top', (getAdminBarHeight() - offsetY) + 'px');
						}
					}
				}

				modal.classList.add('show-modal');
			});

			
			modal.addEventListener('toggle-target-after-inactive', function (event) {
				if (event.target !== modal) {
					return;
				}

				setTimeout(function () {
					var clickedEl = ConstructionArc.toggles.clickedEl;

					modal.classList.remove('show-modal');

					Object.keys(htmlStyles()).forEach(function (styleKey) {
						htmlStyle.removeProperty(styleKey);
					});

					if (adminBar) {
						_doc.body.style.removeProperty('padding-top');
						modal.style.removeProperty('top');
					}

					if (clickedEl !== false) {
						clickedEl.focus();
						clickedEl = false;
					}

					_win.scrollTo(0, Math.abs(_win.ConstructionArc.scrolled + getAdminBarHeight()));

					_win.ConstructionArc.scrolled = 0;
				}, 500);
			});
		});
	},

	untoggleModal: function (modal) {
		var modalTargetClass,
			modalToggle = false;

		if (modal.dataset.modalTargetString) {
			modalTargetClass = modal.dataset.modalTargetString;

			modalToggle = document.querySelector('*[data-toggle-target="' + modalTargetClass + '"]');
		}

		if (modalToggle) {
			modalToggle.click();
		} else {
			modal.classList.remove('active');
		}
	}

}; 

ConstructionArc.modalMenu = {

	init: function () {
		this.expandLevel();
		this.keepFocusInModal();
	},

	expandLevel: function () {
		var modalMenus = document.querySelectorAll('.modal-menu');

		modalMenus.forEach(function (modalMenu) {
			var activeMenuItem = modalMenu.querySelector('.current-menu-item');

			if (activeMenuItem) {
				ConstructionArcFindParents(activeMenuItem, 'li').forEach(function (element) {
					var subMenuToggle = element.querySelector('.sub-menu-toggle');
					if (subMenuToggle) {
						ConstructionArc.toggles.performToggle(subMenuToggle, true);
					}
				});
			}
		});
	},

	keepFocusInModal: function () {
		var _doc = document;

		_doc.addEventListener('keydown', function (event) {
			var toggleTarget, modal, selectors, elements, menuType, bottomMenu, activeEl, lastEl, firstEl, tabKey, shiftKey,
				clickedEl = ConstructionArc.toggles.clickedEl;

			if (clickedEl && _doc.body.classList.contains('showing-modal')) {
				toggleTarget = clickedEl.dataset.toggleTarget;
				selectors = 'input, a, button';
				modal = _doc.querySelector(toggleTarget);
				if (!modal) return;
				elements = modal.querySelectorAll(selectors);
				elements = Array.prototype.slice.call(elements);

				if ('.menu-modal' === toggleTarget) {
					menuType = window.matchMedia('(min-width: 1000px)').matches;
					menuType = menuType ? '.expanded-menu' : '.mobile-menu';

					elements = elements.filter(function (element) {
						return null !== element.closest(menuType) && null !== element.offsetParent;
					});

					elements.unshift(_doc.querySelector('.close-nav-toggle'));

					bottomMenu = _doc.querySelector('.menu-bottom > nav');

					if (bottomMenu) {
						bottomMenu.querySelectorAll(selectors).forEach(function (element) {
							elements.push(element);
						});
					}
				}

				lastEl = elements[elements.length - 1];
				firstEl = elements[0];
				activeEl = _doc.activeElement;
				tabKey = event.keyCode === 9;
				shiftKey = event.shiftKey;

				if (!shiftKey && tabKey && lastEl === activeEl) {
					event.preventDefault();
					firstEl.focus();
				}

				if (shiftKey && tabKey && firstEl === activeEl) {
					event.preventDefault();
					lastEl.focus();
				}
			}
		});
	}

}; 

ConstructionArc.primaryMenu = {

	init: function () {
		this.focusMenuWithChildren();
	},

	focusMenuWithChildren: function () {

		var links, i, len,
			menu = document.querySelector('.box-header-nav');

		if (!menu) {
			return false;
		}

		links = menu.getElementsByTagName('a');

		for (i = 0, len = links.length; i < len; i++) {
			links[i].addEventListener('focus', toggleFocus, true);
			links[i].addEventListener('blur', toggleFocus, true);
		}

		function toggleFocus() {

			var self = this;

			while (-1 === self.className.indexOf('main-menu')) {
				if ('li' === self.tagName.toLowerCase()) {
					if (-1 !== self.className.indexOf('focus')) {
						self.className = self.className.replace(' focus', '');
					} else {
						self.className += ' focus';
					}
				}
				self = self.parentElement;
			}
		}
	}
}; 

ConstructionArc.categoryMenu = {

	init: function () {
		this.focusMenuWithChildren();
	},

	focusMenuWithChildren: function () {

		var links, i, len,
			menu = document.querySelector('.verticalmenu-content.menu-category');

		if (!menu) {
			return false;
		}

		links = menu.getElementsByTagName('a');

		for (i = 0, len = links.length; i < len; i++) {
			links[i].addEventListener('focus', toggleFocus, true);
			links[i].addEventListener('blur', toggleFocus, true);
		}

		function toggleFocus() {

			var self = this;

			while (-1 === self.className.indexOf('vertical-menu')) {
				if ('li' === self.tagName.toLowerCase()) {
					if (-1 !== self.className.indexOf('focus')) {
						self.className = self.className.replace(' focus', '');
					} else {
						self.className += ' focus';
					}
				}
				self = self.parentElement;
			}
		}
	}
}; 

ConstructionArc.toggles = {

	clickedEl: false,

	init: function () {
		this.toggle();
		this.resizeCheck();
		this.untoggleOnEscapeKeyPress();
	},

	performToggle: function (element, instantly) {
		var target, timeOutTime, classToToggle,
			self = this,
			_doc = document,
			toggle = element,
			targetString = toggle.dataset.toggleTarget,
			activeClass = 'active';
		if (!_doc.querySelectorAll('.show-modal').length) {
			self.clickedEl = _doc.activeElement;
		}

		if (targetString === 'next') {
			target = toggle.nextSibling;
		} else {
			target = _doc.querySelector(targetString);
		}

		if (target.classList.contains(activeClass)) {
			target.dispatchEvent(ConstructionArc.createEvent('toggle-target-before-active'));
		} else {
			target.dispatchEvent(ConstructionArc.createEvent('toggle-target-before-inactive'));
		}

		classToToggle = toggle.dataset.classToToggle ? toggle.dataset.classToToggle : activeClass;

		timeOutTime = 0;

		if (target.classList.contains('cover-modal')) {
			timeOutTime = 10;
		}

		setTimeout(function () {
			var focusElement,
				subMenued = target.classList.contains('sub-menu'),
				newTarget = subMenued ? toggle.closest('.menu-item').querySelector('.sub-menu') : target,
				duration = toggle.dataset.toggleDuration;

			if (toggle.dataset.toggleType === 'slidetoggle' && !instantly && duration !== '0') {
				ConstructionArcMenuToggle(newTarget, duration);
			} else {
				newTarget.classList.toggle(classToToggle);
			}

			if (targetString === 'next') {
				toggle.classList.toggle(activeClass);
			} else if (target.classList.contains('sub-menu')) {
				toggle.classList.toggle(activeClass);
			} else {
				_doc.querySelector('*[data-toggle-target="' + targetString + '"]').classList.toggle(activeClass);
			}

			ConstructionArcToggleAttribute(toggle, 'aria-expanded', 'true', 'false');

			if (self.clickedEl && -1 !== toggle.getAttribute('class').indexOf('close-')) {
				ConstructionArcToggleAttribute(self.clickedEl, 'aria-expanded', 'true', 'false');
			}

			if (toggle.dataset.toggleBodyClass) {
				_doc.body.classList.toggle(toggle.dataset.toggleBodyClass);
			}

			if (toggle.dataset.setFocus) {
				focusElement = _doc.querySelector(toggle.dataset.setFocus);

				if (focusElement) {
					if (target.classList.contains(activeClass)) {
						focusElement.focus();
					} else {
						focusElement.blur();
					}
				}
			}

			target.dispatchEvent(ConstructionArc.createEvent('toggled'));

			if (target.classList.contains(activeClass)) {
				target.dispatchEvent(ConstructionArc.createEvent('toggle-target-after-active'));
			} else {
				target.dispatchEvent(ConstructionArc.createEvent('toggle-target-after-inactive'));
			}
		}, timeOutTime);
	},

	toggle: function () {
		var self = this;

		document.querySelectorAll('*[data-toggle-target]').forEach(function (element) {
			element.addEventListener('click', function (event) {
				event.preventDefault();
				self.performToggle(element);
			});
		});
	},

	resizeCheck: function () {
		if (document.querySelectorAll('*[data-untoggle-above], *[data-untoggle-below], *[data-toggle-above], *[data-toggle-below]').length) {
			window.addEventListener('resize', function () {
				var winWidth = window.innerWidth,
					toggles = document.querySelectorAll('.toggle');

				toggles.forEach(function (toggle) {
					var unToggleAbove = toggle.dataset.untoggleAbove,
						unToggleBelow = toggle.dataset.untoggleBelow,
						toggleAbove = toggle.dataset.toggleAbove,
						toggleBelow = toggle.dataset.toggleBelow;

					if (!unToggleAbove && !unToggleBelow && !toggleAbove && !toggleBelow) {
						return;
					}

					if (
						(((unToggleAbove && winWidth > unToggleAbove) ||
							(unToggleBelow && winWidth < unToggleBelow)) &&
							toggle.classList.contains('active')) ||
						(((toggleAbove && winWidth > toggleAbove) ||
							(toggleBelow && winWidth < toggleBelow)) &&
							!toggle.classList.contains('active'))
					) {
						toggle.click();
					}
				});
			});
		}
	},

	untoggleOnEscapeKeyPress: function () {
		document.addEventListener('keyup', function (event) {
			if (event.key === 'Escape') {
				document.querySelectorAll('*[data-untoggle-on-escape].active').forEach(function (element) {
					if (element.classList.contains('active')) {
						element.click();
					}
				});
			}
		});
	}

}; 

function ConstructionArcDomReady(fn) {
	if (typeof fn !== 'function') {
		return;
	}

	if (document.readyState === 'interactive' || document.readyState === 'complete') {
		return fn();
	}

	document.addEventListener('DOMContentLoaded', fn, false);
}

ConstructionArcDomReady(function () {
	ConstructionArc.toggles.init();              
	ConstructionArc.coverModals.init();          
	ConstructionArc.modalMenu.init();                  
	ConstructionArc.categoryMenu.init();          
});

function ConstructionArcToggleAttribute(element, attribute, trueVal, falseVal) {
	if (trueVal === undefined) {
		trueVal = true;
	}
	if (falseVal === undefined) {
		falseVal = false;
	}
	if (element.getAttribute(attribute) !== trueVal) {
		element.setAttribute(attribute, trueVal);
	} else {
		element.setAttribute(attribute, falseVal);
	}
}

function ConstructionArcMenuToggle(target, duration) {
	var initialParentHeight, finalParentHeight, menu, menuItems, transitionListener,
		initialPositions = [],
		finalPositions = [];

	if (!target) {
		return;
	}

	menu = target.closest('.menu-wrapper');

	menuItems = menu.querySelectorAll('.menu-item');

	menuItems.forEach(function (menuItem, index) {
		initialPositions[index] = { x: menuItem.offsetLeft, y: menuItem.offsetTop };
	});
	initialParentHeight = target.parentElement.offsetHeight;

	target.classList.add('toggling-target');

	target.classList.toggle('active');

	menuItems.forEach(function (menuItem, index) {
		finalPositions[index] = { x: menuItem.offsetLeft, y: menuItem.offsetTop };
	});
	finalParentHeight = target.parentElement.offsetHeight;

	target.classList.toggle('active');

	menu.classList.add('is-toggling');
	target.classList.toggle('active');
	menuItems.forEach(function (menuItem, index) {
		var initialPosition = initialPositions[index];
		if (initialPosition.y === 0 && menuItem.parentElement === target) {
			initialPosition.y = initialParentHeight;
		}
	});

	requestAnimationFrame(function () {
		requestAnimationFrame(function () {
			menu.classList.add('is-animating');
			menuItems.forEach(function (menuItem, index) {
				var finalPosition = finalPositions[index];
				if (finalPosition.y === 0 && menuItem.parentElement === target) {
					finalPosition.y = finalParentHeight;
				}
				if (duration !== undefined) {
					menuItem.style.transitionDuration = duration + 'ms';
				}
			});
			if (duration !== undefined) {
				target.style.transitionDuration = duration + 'ms';
			}
		});

		transitionListener = function () {
			menu.classList.remove('is-animating');
			menu.classList.remove('is-toggling');
			target.classList.remove('toggling-target');
			menuItems.forEach(function (menuItem) {
				menuItem.style.transform = '';
				menuItem.style.transitionDuration = '';
			});
			target.style.transitionDuration = '';
			target.removeEventListener('transitionend', transitionListener);
		};

		target.addEventListener('transitionend', transitionListener);
	});
}

function ConstructionArcFindParents(target, query) {
	var parents = [];

	function traverse(item) {
		var parent = item.parentNode;
		if (parent instanceof HTMLElement) {
			if (parent.matches(query)) {
				parents.push(parent);
			}
			traverse(parent);
		}
	}

	traverse(target);

	return parents;
}