// Define 'jQuery.modulaFancybox' only if jQuery is enabled
// Compatibility for other modules using the jQuery type.
if ('undefined' !== typeof jQuery) {
	jQuery.modulaFancybox = {
		isMobile: function () {
			return /Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(
				navigator.userAgent
			);
		},
		isPositionCustom: function (opts) {
			return opts.Thumbs && opts.Thumbs.position !== 'bottom';
		},
		open: function (links, opts, index) {
			opts = opts || {};

			// Dispatch custom event for vanilla JS to manipulate the options
			var event = new CustomEvent('modula_fancybox_before_open', {
				detail: { links: links, opts: opts, index: index },
			});
			document.dispatchEvent(event);
			if (!this.isPositionCustom(opts) || this.isMobile()) {
				return modulaFancybox.open(links, opts, index);
			}

			var sidebarPosition = opts.Thumbs.position;
			opts = Object.assign(opts, {
				tpl: {
					closeButton:
						'<button data-fancybox-close class="f-button is-close-btn" title="{{CLOSE}}"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" tabindex="-1"><path d="M20 20L4 4m16 0L4 20"/></svg></button>',
					main:
						'<div class="fancybox__container has-sidebar" role="dialog" aria-modal="true" aria-label="{{MODAL}}" tabindex="-1"><div class= "fancybox__backdrop" ></div><div class="fancybox__carousel"></div><div class="fancybox__footer"></div><div class="fancybox__sidebar ' +
						sidebarPosition +
						'"></div></div>',
				},
				Thumbs: Object.assign(opts.Thumbs, {
					type: 'classic',
					Carousel: {
						axis: 'y',
					},
					parentEl: function (fb) {
						var sidebar =
							fb.instance.container.querySelector(
								'.fancybox__sidebar'
							);
						if (!sidebar) {
							sidebar = document.createElement('div');
							sidebar.className =
								'fancybox__sidebar ' + sidebarPosition;
							fb.instance.container.appendChild(sidebar);
						}
						return sidebar;
					},
				}),
			});
			return modulaFancybox.open(links, opts, index);
		},
	};
}

// Main lightbox object.
var modulaFancybox = {
	open: function (links, opts, index) {
		links.forEach(function (value, index) {
			if (typeof value.opts.caption !== 'undefined') {
				links[index]['caption'] = DOMPurify.sanitize(
					value.opts.caption,
					{ ADD_ATTR: ['target'] }
				);
			}
			if (typeof value.opts.thumb !== 'undefined') {
				links[index]['thumb'] = value.opts.thumb;
			}
		});

		opts.startIndex = index;

		if (typeof opts.Slideshow !== 'undefined') {
			opts.Slideshow.progressParentEl = function (slideshow) {
				return slideshow.instance.container;
			};
		}

		if (
			typeof opts.Toolbar !== 'undefined' &&
			typeof opts.Toolbar.items !== 'undefined' &&
			typeof opts.Toolbar.items.share !== 'undefined'
		) {
			opts.Toolbar.items.share.click = function () {
				ModulaOpenShare();
			};
		}

		// Define opts.on so we can add events to it.
		opts.on = {};

		// Create a custom trigger for each fancybox event.
		opts.on['*'] = function (fancybox, eventName) {
			// replace . from event name with _ and set custom event.
			jQuery(document).trigger(
				'modula_fancybox_' + eventName.replace(/\./g, '_'),
				[fancybox, this]
			);
			// Create custom event for vanilla JS
			var event = new CustomEvent(
				'modula_fancybox_' + eventName.replace(/\./g, '_'),
				{ detail: { fancybox: fancybox, instance: fancybox } }
			);

			document.dispatchEvent(event);
		};

		opts.on['Carousel.selectSlide'] = function (
			fancybox,
			eventName,
			slideIndex
		) {
			var event = new CustomEvent(
				'modula_fancybox_custom_Carousel_selectSlide',
				{
					detail: {
						fancybox: fancybox,
						instance: this,
						index: slideIndex.index,
						opts: opts,
					},
				}
			);
			document.dispatchEvent(event);
		};

		// Slide pause on hover event
		opts.on['Carousel.ready Carousel.change'] = function (
			fancybox,
			eventName
		) {
			var options = fancybox.options,
				pauseOnHover =
					typeof options.Slideshow !== 'undefined' &&
					typeof options.Slideshow.pauseOnHover !== 'undefined'
						? options.Slideshow.pauseOnHover
						: false,
				autoplay = fancybox.plugins.Slideshow.ref;

			if (!pauseOnHover || !autoplay) {
				return;
			}

			if (!fancybox.modulaPauseOnHover) {
				fancybox.modulaPauseOnHover = {
					mouseover: null,
					mouseout: null,
					paused: false,
					contentEl: null,
				};
			}

			var listeners = fancybox.modulaPauseOnHover;

			var currentSlide = fancybox.getSlide && fancybox.getSlide();
			var contentEl = null;

			if (currentSlide && currentSlide.contentEl) {
				contentEl = currentSlide.contentEl;
			} else {
				contentEl =
					document.querySelector(
						'.modula-fancybox-container .fancybox__slide.is-selected .fancybox__content'
					) ||
					document.querySelector(
						'.modula-fancybox-container .fancybox__slide .fancybox__content'
					);
			}

			if (!contentEl) {
				return;
			}

			if (
				listeners.mouseover &&
				listeners.mouseout &&
				listeners.contentEl
			) {
				if (listeners.contentEl !== contentEl) {
					listeners.contentEl.removeEventListener(
						'mouseover',
						listeners.mouseover
					);
					listeners.contentEl.removeEventListener(
						'mouseout',
						listeners.mouseout
					);
				} else {
					contentEl.removeEventListener(
						'mouseover',
						listeners.mouseover
					);
					contentEl.removeEventListener(
						'mouseout',
						listeners.mouseout
					);
				}
			}

			listeners.mouseover = function (e) {
				var currentAutoplay = fancybox.plugins.Slideshow.ref;
				if (currentAutoplay && currentAutoplay.state == 'play') {
					listeners.paused = true;
					currentAutoplay.stop();
				}
			};

			listeners.mouseout = function (e) {
				var currentAutoplay = fancybox.plugins.Slideshow.ref;
				if (
					currentAutoplay &&
					currentAutoplay.state == 'ready' &&
					listeners.paused
				) {
					listeners.paused = false;
					currentAutoplay.start();
				}
			};

			listeners.contentEl = contentEl;
			contentEl.addEventListener('mouseover', listeners.mouseover);
			contentEl.addEventListener('mouseout', listeners.mouseout);
		};

		opts.on['destroy'] = function (fancybox) {
			if (fancybox.modulaPauseOnHover) {
				var listeners = fancybox.modulaPauseOnHover;
				if (
					listeners.contentEl &&
					listeners.mouseover &&
					listeners.mouseout
				) {
					listeners.contentEl.removeEventListener(
						'mouseover',
						listeners.mouseover
					);
					listeners.contentEl.removeEventListener(
						'mouseout',
						listeners.mouseout
					);
				}
				fancybox.modulaPauseOnHover = null;
			}
		};

		opts.on['init'] = function (fancybox) {
			jQuery(document).trigger('modula_fancybox_lightbox_on_init', [
				fancybox,
				this,
			]);
		};

		return new ModulaFancybox(links, opts);
	},
	getInstance: function () {
		return this;
	},
};

function escapeHtml(string) {
	var entityMap = {
		'&': '&amp;',
		'<': '&lt;',
		'>': '&gt;',
		'"': '&quot;',
		"'": '&#39;',
		'/': '&#x2F;',
		'`': '&#x60;',
		'=': '&#x3D;',
	};

	return String(string).replace(/[&<>"'`=\/]/g, function (s) {
		return entityMap[s];
	});
}

// Open the share fancybox modal for modula lightbox.
function ModulaOpenShare() {
	var instance = ModulaFancybox.getInstance();
	var current = ModulaFancybox.getSlide();
	var url =
		typeof current.opts.image_src !== 'undefined'
			? current.opts.image_src
			: current.src;
	var tpl =
		"<div class='modula-fancybox-share'><h1>" +
		instance.options.l10n.SHARE +
		'</h1><p>';
	var shareBtnTpl = JSON.parse(ModulaShareButtons);

	instance.options.modulaShare.forEach(function (value, index) {
		var rawEmailMessage = instance.options.lightboxEmailMessage.length
			? instance.options.lightboxEmailMessage
			: instance.options.l10n.EMAIL;

		var emailMessage = rawEmailMessage
			.replace(/\%%gallery_link%%/g, window.location.href)
			.replace(/\%%image_link%%/g, url);

		var text = current.opts.alt !== undefined ? current.opts.alt : '';

		if (
			text === '' &&
			current.caption &&
			typeof current.caption !== 'undefined'
		) {
			text = current.caption;
		}

		tpl += shareBtnTpl[value].template({
			media: current.type === 'image' ? encodeURIComponent(url) : '',
			modulaShareUrl: encodeURIComponent(url),
			descr: encodeURIComponent(text),
			subject: encodeURIComponent(instance.options.lightboxEmailSubject),
			emailMessage: encodeURIComponent(emailMessage),
		});
	});

	tpl +=
		"</p><p><input class='modula-fancybox-share__input' type='text' value='" +
		escapeHtml(url) +
		"' /></p></div>";

	tpl = tpl.template({ url_raw: escapeHtml(url) });

	new ModulaFancybox(
		[
			{
				src: tpl,
				type: 'html',
				width: 640,
				height: 360,
			},
		],
		{
			mainClass: 'modula-fancybox-container',
		}
	);
}

// Replaces placeholders like {placeholder} with the actual values in the given string.
String.prototype.template = function (d) {
	return this.replace(/\{([^\}]+)\}/g, function (m, n) {
		var o = d,
			p = n.split('|')[0].split('.');
		for (var i = 0; i < p.length; i++) {
			o = typeof o[p[i]] === 'function' ? o[p[i]]() : o[p[i]];
			if (typeof o === 'undefined' || o === null)
				return n.indexOf('|') !== -1 ? n.split('|')[1] : m;
		}
		return o;
	});
};

document.addEventListener(
	'modula_fancybox_Carousel_ready',
	modulaAlbumsMoveCaption
);
document.addEventListener(
	'modula_fancybox_Carousel_change',
	modulaAlbumsMoveCaption
);
document.addEventListener('modula_fancybox_resize', modulaAlbumsMoveCaption);

function modulaAlbumsMoveCaption() {
	requestAnimationFrame(function () {
		document.querySelectorAll('.fancybox__slide.has-image.has-caption').forEach(function (slide) {
			var content = slide.querySelector('.fancybox__content');
			var caption = slide.querySelector('.fancybox__caption');
			if (!content || !caption) return;
			var w = content.offsetWidth;
			if (w > 0) {
				caption.style.width = w + 'px';
				caption.style.maxWidth = w + 'px';
			} else {
				var img = content.querySelector('img');
				if (img) {
					img.addEventListener('load', modulaAlbumsMoveCaption, { once: true });
				}
			}
		});
	});
}
