var CardModel = require( './CardModel.js' ),
	CardView = require( './CardView.js' ),
	CardListView = require( './CardListView.js' );
/**
 * Generates `mw.cards.CardView`s from pages
 *
 * @param {Object[]} pages
 * @return {mw.cards.CardView[]}
 */
function getCards( pages ) {
	return pages.map( function ( page ) {
		var result = {
			title: page.title,
			url: mw.util.getUrl( page.title ),
			hasThumbnail: false,
			extract: ( page.description || page.extract ||
				( page.pageprops ? page.pageprops.description : '' ) )
		};

		if ( page.thumbnail ) {
			result.hasThumbnail = true;
			result.thumbnailUrl = page.thumbnail.source;
			result.isThumbnailPortrait = page.thumbnail.height >= page.thumbnail.width;
		}

		return new CardView( new CardModel( result ) );
	} );
}

/**
 * Renders the related articles.
 *
 * @param {Object[]} pages
 * @param {Element} el
 */
function render( pages, el ) {
	var cards = new CardListView( getCards( pages ) ),
		$readMore = $( '<aside>' ).addClass( 'ra-read-more noprint' )
			.append( $( '<h2>' ).text( mw.msg( 'relatedarticles-read-more-heading' ) ) )
			.append( cards.$el );

	$( el ).append( $readMore );
}

module.exports = {
	render: render,
	getCards: getCards
};