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import { Base } from 'landing.node.base';
import { Dom, Event } from 'main.core';

const trim = BX.Landing.Utils.trim;
const isPlainObject = BX.Landing.Utils.isPlainObject;
const isString = BX.Landing.Utils.isString;
const textToPlaceholders = BX.Landing.Utils.textToPlaceholders;
const create = BX.Landing.Utils.create;
const escapeText = BX.Landing.Utils.escapeText;
const decodeDataValue = BX.Landing.Utils.decodeDataValue;

export class Link extends Base
{
	constructor(options)
	{
		super(options);

		this.type = 'link';

		if (!this.isGrouped())
		{
			Event.bind(this.node, 'click', this.onClick.bind(this));
		}

		if (this.isAllowInlineEdit())
		{
			Dom.attr(this.node, 'title', BX.Landing.Loc.getMessage('LANDING_TITLE_OF_LINK_NODE'));
		}

		this.onChange = BX.Runtime.debounce(this.onChange, 500);
		this.onContentUpdate = BX.Runtime.debounce(this.onContentUpdate, 500);
	}

	onContentUpdate()
	{
		BX.Landing.History.getInstance().push();
		this.getField().setValue(this.getValue());
	}

	isMenuMode(): boolean
	{
		return this.manifest.menuMode === true;
	}

	/**
	 * Handles click event
	 * @param {MouseEvent} event
	 */
	onClick(event)
	{
		event.preventDefault();

		if (!this.isMenuMode())
		{
			event.stopPropagation();
		}

		if (this.isAllowInlineEdit())
		{
			BX.Landing.UI.Button.ColorAction.hideAll();

			if (!BX.Landing.UI.Panel.StylePanel.getInstance().isShown())
			{
				BX.Landing.UI.Panel.Link.getInstance().show(this);
			}
		}
	}

	/**
	 * Sets node value
	 * @param data
	 * @param {?boolean} [preventSave = false]
	 * @param {?boolean} [preventHistory = false]
	 */
	setValue(data, preventSave, preventHistory)
	{
		this.startValue = this.startValue || this.getValue();

		this.preventSave(preventSave);

		if (!this.containsImage() && this.isAllowInlineEdit())
		{
			const field = this.getField(true).hrefInput;

			if (isString(data.text) && data.text.includes('{{name}}'))
			{
				field.getPlaceholderData(data.href)
					.then((placeholdersData) => {
						this.node.innerHTML = data.text.replace(
							/{{name}}/,
							`<span data-placeholder="name">${placeholdersData.name}</span>`,
						);
					})
					.catch(() => {});
			}
			else if (!this.getField().containsHtml() && !this.manifest.skipContent)
			{
				this.node.innerHTML = escapeText(data.text);
			}
		}

		this.setAttrValue(data);

		this.onChange(preventHistory);

		if (!preventHistory)
		{
			this.onContentUpdate();
		}
	}

	setAttrValue(data)
	{
		Dom.attr(this.node, 'href', decodeDataValue(data.href));
		Dom.attr(this.node, 'target', escapeText(data.target));

		if ('attrs' in data)
		{
			Object.keys(data.attrs).forEach((attr) => {
				if (Object.prototype.hasOwnProperty.call(data.attrs, attr))
				{
					Dom.attr(this.node, attr, data.attrs[attr]);
				}
			});
		}
		else
		{
			Dom.attr(this.node, 'data-url', null);
			Dom.attr(this.node, 'data-embed', null);
		}
	}

	/**
	 * Checks that this node contains image node
	 * @return {boolean}
	 */
	containsImage(): boolean
	{
		return Boolean(this.node.firstElementChild) && this.node.firstElementChild.tagName === 'IMG';
	}

	/**
	 * Gets node value
	 * @return {{text: string, href: string|*, target: string|*}}
	 */
	getValue(): {text: string, href: string | *, target: string | *}
	{
		const value = {
			text: textToPlaceholders(trim(this.node.innerHTML)),
			href: trim(this.node.getAttribute('href')),
			target: trim(this.node.getAttribute('target') || '_self'),
		};

		if (this.node.getAttribute('data-url'))
		{
			value.attrs = {
				'data-url': trim(this.node.getAttribute('data-url')),
			};
		}

		if (this.node.getAttribute('data-dynamic'))
		{
			if (!isPlainObject(value.attrs))
			{
				value.attrs = {};
			}

			value.attrs['data-dynamic'] = this.node.getAttribute('data-dynamic');
		}

		if (this.manifest.skipContent)
		{
			value.skipContent = true;
			delete value.text;
		}

		if (value.href && value.href.startsWith('selectActions:'))
		{
			value.href = '#';
		}

		return value;
	}

	/**
	 * Gets field
	 * @param {boolean} preventAdjustValue
	 * @return {BX.Landing.UI.Field.BaseField}
	 */
	getField(preventAdjustValue): BX.Landing.UI.Field.BaseField
	{
		const value = this.getValue();
		value.text = textToPlaceholders(create('div', { html: value.text }).innerHTML);

		if (!this.field)
		{
			const allowedTypes = [
				BX.Landing.UI.Field.LinkUrl.TYPE_BLOCK,
				BX.Landing.UI.Field.LinkUrl.TYPE_PAGE,
				BX.Landing.UI.Field.LinkUrl.TYPE_CRM_FORM,
				BX.Landing.UI.Field.LinkUrl.TYPE_CRM_PHONE,
			];

			if (BX.Landing.Main.getInstance().options.params.type === BX.Landing.Main.TYPE_STORE)
			{
				allowedTypes.push(BX.Landing.UI.Field.LinkUrl.TYPE_CATALOG);
			}

			if (BX.Landing.Main.getInstance().options.features.includes('diskFile'))
			{
				allowedTypes.push(BX.Landing.UI.Field.LinkUrl.TYPE_DISK_FILE);
			}

			this.field = new BX.Landing.UI.Field.Link({
				title: this.manifest.name,
				selector: this.selector,
				skipContent: this.manifest.skipContent,
				content: value,
				options: {
					siteId: BX.Landing.Main.getInstance().options.site_id,
					landingId: BX.Landing.Main.getInstance().id,
				},
				allowedTypes,
			});
		}
		else if (!preventAdjustValue)
		{
			this.field.setValue(value);
			this.field.content = value;
			this.field.hrefInput.content = value.href;
			this.field.hrefInput.makeDisplayedHrefValue();
			this.field.hrefInput.setHrefTypeSwitcherValue(
				this.field.hrefInput.getHrefStringType(),
			);
			this.field.hrefInput.removeHrefTypeFromHrefString();
		}

		return this.field;
	}
}

BX.Landing.Node.Link = Link;