/**
 * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.
 * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
 */
import type { ToolbarConfigItem } from 'ckeditor5/src/core';
import type { ArrayOrItem } from 'ckeditor5/src/utils';
/**
 * @module media-embed/mediaembedconfig
 */
/**
 * The configuration of the media embed features.
 *
 * Read more about {@glink features/media-embed#configuration configuring the media embed feature}.
 *
 * ```ts
 * ClassicEditor
 * 	.create( editorElement, {
 * 			mediaEmbed: ... // Media embed feature options.
 * 	} )
 * 	.then( ... )
 * 	.catch( ... );
 * ```
 *
 * See {@link module:core/editor/editorconfig~EditorConfig all editor options}.
 */
export interface MediaEmbedConfig {
    /**
     * The default media providers supported by the editor.
     *
     * The names of providers with rendering functions (previews):
     *
     * * "dailymotion",
     * * "spotify",
     * * "youtube",
     * * "vimeo"
     *
     * The names of providers without rendering functions:
     *
     * * "instagram",
     * * "twitter",
     * * "googleMaps",
     * * "flickr",
     * * "facebook"
     *
     * See the {@link module:media-embed/mediaembedconfig~MediaEmbedProvider provider syntax} to learn more about
     * different kinds of media and media providers.
     *
     * **Note**: The default media provider configuration may not support all possible media URLs,
     * only the most common are included.
     *
     * Media without rendering functions are always represented in the data using the "semantic" markup. See
     * {@link module:media-embed/mediaembedconfig~MediaEmbedConfig#previewsInData `config.mediaEmbed.previewsInData`} to
     * learn more about possible data outputs.
     *
     * The priority of media providers corresponds to the order of configuration. The first provider
     * to match the URL is always used, even if there are other providers that support a particular URL.
     * The URL is never matched against the remaining providers.
     *
     * To discard **all** default media providers, simply override this configuration with your own
     * {@link module:media-embed/mediaembedconfig~MediaEmbedProvider definitions}:
     *
     * ```ts
     * ClassicEditor
     * 	.create( editorElement, {
     * 		plugins: [ MediaEmbed, ... ],
     * 		mediaEmbed: {
     * 			providers: [
     * 				{
     * 					 name: 'myProvider',
     * 					 url: /^example\.com\/media\/(\w+)/,
     * 					 html: match => '...'
     * 				},
     * 				...
     * 				]
     * 		}
     * 	} )
     * 	.then( ... )
     * 	.catch( ... );
     * ```
     *
     * You can take inspiration from the default configuration of this feature which you can find in:
     * https://github.com/ckeditor/ckeditor5-media-embed/blob/master/src/mediaembedediting.js
     *
     * To **extend** the list of default providers, use
     * {@link module:media-embed/mediaembedconfig~MediaEmbedConfig#extraProviders `config.mediaEmbed.extraProviders`}.
     *
     * To **remove** certain providers, use
     * {@link module:media-embed/mediaembedconfig~MediaEmbedConfig#removeProviders `config.mediaEmbed.removeProviders`}.
     */
    providers?: Array<MediaEmbedProvider>;
    /**
     * The additional media providers supported by the editor. This configuration helps extend the default
     * {@link module:media-embed/mediaembedconfig~MediaEmbedConfig#providers}.
     *
     * ```ts
     * ClassicEditor
     * 	.create( editorElement, {
     * 		plugins: [ MediaEmbed, ... ],
     * 		mediaEmbed: {
     * 			extraProviders: [
     * 				{
     * 					 name: 'extraProvider',
     * 					 url: /^example\.com\/media\/(\w+)/,
     * 					 html: match => '...'
     * 				},
     * 				...
     * 				]
     * 		}
     * 	} )
     * 	.then( ... )
     * 	.catch( ... );
     * ```
     *
     * See the {@link module:media-embed/mediaembedconfig~MediaEmbedProvider provider syntax} to learn more.
     */
    extraProviders?: Array<MediaEmbedProvider>;
    /**
     * The list of media providers that should not be used despite being available in
     * {@link module:media-embed/mediaembedconfig~MediaEmbedConfig#providers `config.mediaEmbed.providers`} and
     * {@link module:media-embed/mediaembedconfig~MediaEmbedConfig#extraProviders `config.mediaEmbed.extraProviders`}
     *
     * ```ts
     * mediaEmbed: {
     * 	removeProviders: [ 'youtube', 'twitter' ]
     * }
     * ```
     */
    removeProviders?: Array<string>;
    /**
     * Overrides the element name used for "semantic" data.
     *
     * This is not relevant if
     * {@link module:media-embed/mediaembedconfig~MediaEmbedConfig#previewsInData `config.mediaEmbed.previewsInData`} is set to `true`.
     *
     * When not set, the feature produces the `<oembed>` tag:
     *
     * ```html
     * <figure class="media">
     * 	<oembed url="https://url"></oembed>
     * </figure>
     * ```
     *
     * To override the element name with, for instance, the `o-embed` name:
     *
     * ```ts
     * mediaEmbed: {
     * 	elementName: 'o-embed'
     * }
     * ```
     *
     * This will produce semantic data with the `<o-embed>` tag:
     *
     * ```html
     * <figure class="media">
     * 	<o-embed url="https://url"></o-embed>
     * </figure>
     * ```
     *
     * @default 'oembed'
     */
    elementName?: string;
    /**
     * Controls the data format produced by the feature.
     *
     * When `false` (default), the feature produces "semantic" data, i.e. it does not include the preview of
     * the media, just the `<oembed>` tag with the `url` attribute:
     *
     * ```ts
     * <figure class="media">
     * 	<oembed url="https://url"></oembed>
     * </figure>
     * ```
     *
     * When `true`, the media is represented in the output in the same way it looks in the editor,
     * i.e. the media preview is saved to the database:
     *
     * ```ts
     * <figure class="media">
     * 	<div data-oembed-url="https://url">
     * 		<iframe src="https://preview"></iframe>
     * 	</div>
     * </figure>
     * ```
     *
     * **Note:** Media without preview are always represented in the data using the "semantic" markup
     * regardless of the value of the `previewsInData`. Learn more about different kinds of media
     * in the {@link module:media-embed/mediaembedconfig~MediaEmbedConfig#providers `config.mediaEmbed.providers`}
     * configuration description.
     *
     * @defualt false
     */
    previewsInData?: boolean;
    /**
     * Items to be placed in the media embed toolbar.
     * This option requires adding {@link module:media-embed/mediaembedtoolbar~MediaEmbedToolbar} to the plugin list.
     *
     * Read more about configuring toolbar in {@link module:core/editor/editorconfig~EditorConfig#toolbar}.
     */
    toolbar?: Array<ToolbarConfigItem>;
}
/**
 * The media embed provider descriptor. Used in
 * {@link module:media-embed/mediaembedconfig~MediaEmbedConfig#providers `config.mediaEmbed.providers`} and
 * {@link module:media-embed/mediaembedconfig~MediaEmbedConfig#extraProviders `config.mediaEmbed.extraProviders`}.
 *
 * See {@link module:media-embed/mediaembedconfig~MediaEmbedConfig} to learn more.
 *
 * ```ts
 * {
 * 	name: 'example',
 *
 * 	// The following RegExp matches https://www.example.com/media/{media id},
 * 	// (either with "http(s)://" and "www" or without), so the valid URLs are:
 * 	//
 * 	// * https://www.example.com/media/{media id},
 * 	// * http://www.example.com/media/{media id},
 * 	// * www.example.com/media/{media id},
 * 	// * example.com/media/{media id}
 * 	url: /^example\.com\/media\/(\w+)/,
 *
 * 	// The rendering function of the provider.
 * 	// Used to represent the media when editing the content (i.e. in the view)
 * 	// and also in the data output of the editor if semantic data output is disabled.
 * 	html: match => `The HTML representing the media with ID=${ match[ 1 ] }.`
 * }
 * ```
 *
 * You can allow any sort of media in the editor using the "allow–all" `RegExp`.
 * But mind that, since URLs are processed in the order of configuration, if one of the previous
 * `RegExps` matches the URL, it will have a precedence over this one.
 *
 * ```ts
 * {
 * 	name: 'allow-all',
 * 	url: /^.+/
 * }
 * ```
 *
 * To implement responsive media, you can use the following HTML structure:
 *
 * ```ts
 * {
 * 	...
 * 	html: match =>
 * 		'<div style="position:relative; padding-bottom:100%; height:0">' +
 * 			'<iframe src="..." frameborder="0" ' +
 * 				'style="position:absolute; width:100%; height:100%; top:0; left:0">' +
 * 			'</iframe>' +
 * 		'</div>'
 * }
 * ```
 */
export interface MediaEmbedProvider {
    /**
     * The name of the provider. Used e.g. when
     * {@link module:media-embed/mediaembedconfig~MediaEmbedConfig#removeProviders removing providers}.
     */
    name: string;
    /**
     * The `RegExp` object (or array of objects) defining the URL of the media.
     * If any URL matches the `RegExp`, it becomes the media in the editor model, as defined by the provider. The result
     * of matching (output of `String.prototype.match()`) is passed to the `html` rendering function of the media.
     *
     * **Note:** You do not need to include the protocol (`http://`, `https://`) and `www` subdomain in your `RegExps`,
     * they are stripped from the URLs before matching anyway.
     */
    url: ArrayOrItem<RegExp>;
    /**
     * The rendering function of the media. The function receives the entire matching
     * array from the corresponding `url` `RegExp` as an argument, allowing rendering a dedicated
     * preview of the media identified by a certain ID or a hash. When not defined, the media embed feature
     * will use a generic media representation in the view and output data.
     * Note that when
     * {@link module:media-embed/mediaembedconfig~MediaEmbedConfig#previewsInData `config.mediaEmbed.previewsInData`}
     * is `true`, the rendering function **will always** be used for the media in the editor data output.
     */
    html?: (match: RegExpMatchArray) => string;
}