<?php

use \Wikia\PortableInfobox\Helpers\PortableInfoboxRenderServiceHelper;

class PortableInfoboxRenderService extends WikiaService {
	const MOBILE_TEMPLATE_POSTFIX = '-mobile';

	private $templates = [
		'wrapper' => 'PortableInfoboxWrapper.mustache',
		'title' => 'PortableInfoboxItemTitle.mustache',
		'header' => 'PortableInfoboxItemHeader.mustache',
		'image' => 'PortableInfoboxItemImage.mustache',
		'image-mobile' => 'PortableInfoboxItemImageMobile.mustache',
		'data' => 'PortableInfoboxItemData.mustache',
		'group' => 'PortableInfoboxItemGroup.mustache',
		'horizontal-group-content' => 'PortableInfoboxHorizontalGroupContent.mustache',
		'navigation' => 'PortableInfoboxItemNavigation.mustache',
		'hero-mobile' => 'PortableInfoboxItemHeroMobile.mustache'
	];
	private $templateEngine;

	function __construct() {
		$this->templateEngine = ( new Wikia\Template\MustacheEngine )
			->setPrefix( dirname( __FILE__ ) . '/../templates' );
	}

	/**
	 * renders infobox
	 *
	 * @param array $infoboxdata
	 *
	 * @return string - infobox HTML
	 */
	public function renderInfobox( array $infoboxdata, $theme, $layout ) {
		wfProfileIn( __METHOD__ );

		$helper = new PortableInfoboxRenderServiceHelper();
		$infoboxHtmlContent = '';
		$heroData = [ ];

		foreach ( $infoboxdata as $item ) {
			$data = $item[ 'data' ];
			$type = $item[ 'type' ];

			switch ( $type ) {
				case 'group':
					$infoboxHtmlContent .= $this->renderGroup( $data );
					break;
				case 'navigation':
					$infoboxHtmlContent .= $this->renderItem( 'navigation', $data );
					break;
				default:
					if ( $helper->isInfoboxHeroEnabled() &&
						$helper->isValidHeroDataItem( $item, $heroData ) ) {
						$heroData[ $type ] = $data;
						continue;
					}

					if ( $helper->validateType( $type, $this->templates ) ) {
						$infoboxHtmlContent .= $this->renderItem( $type, $data );
					};
			}
		}

		if ( !empty( $heroData ) ) {
			$infoboxHtmlContent = $this->renderInfoboxHero( $heroData ) . $infoboxHtmlContent;
		}

		if ( !empty( $infoboxHtmlContent ) ) {
			$output = $this->renderItem( 'wrapper', [ 'content' => $infoboxHtmlContent, 'theme' => $theme,
				'layout' => $layout ] );
		} else {
			$output = '';
		}

		wfProfileOut( __METHOD__ );

		return $output;
	}

	/**
	 * renders group infobox component
	 *
	 * @param array $groupData
	 *
	 * @return string - group HTML markup
	 */
	private function renderGroup( $groupData ) {
		$helper = new PortableInfoboxRenderServiceHelper();;
		$groupHTMLContent = '';
		$dataItems = $groupData[ 'value' ];
		$layout = $groupData[ 'layout' ];

		if ( $layout === 'horizontal' && !$helper->isWikiaMobile() ) {
			$groupHTMLContent .= $this->renderItem(
				'horizontal-group-content',
				$helper->createHorizontalGroupData( $dataItems )
			);
		} else {
			foreach ( $dataItems as $item ) {
				$type = $item[ 'type' ];

				if ( $helper->validateType( $type, $this->templates ) ) {
					$groupHTMLContent .= $this->renderItem( $type, $item[ 'data' ] );
				}
			}
		}

		return $this->renderItem( 'group', [ 'content' => $groupHTMLContent, 'layout' => $layout ] );
	}

	/**
	 * renders infobox hero component
	 *
	 * @param array $data - infobox hero component data
	 *
	 * @return string
	 */
	private function renderInfoboxHero( $data ) {
		$helper = new PortableInfoboxRenderServiceHelper();

		if ( array_key_exists( 'image', $data ) ) {
			$data[ 'image' ] = $helper->extendImageData( $data[ 'image' ] );
			$markup = $this->renderItem( 'hero-mobile', $data );
		} else {
			$markup = $this->renderItem( 'title', $data[ 'title' ] );
		}

		return $markup;
	}

	/**
	 * renders part of infobox
	 * If image element has invalid thumbnail, doesn't render this element at all.
	 *
	 * @param string $type
	 * @param array $data
	 * @return bool|string - HTML
	 */
	private function renderItem( $type, array $data ) {
		$helper = new PortableInfoboxRenderServiceHelper();

		if ( $type === 'image' ) {
			$data = $helper->extendImageData( $data );
			if ( !$data ) {
				return false;
			}

			if ( $helper->isWikiaMobile() ) {
				$type = $type . self::MOBILE_TEMPLATE_POSTFIX;
			}
		}

		if ( $helper->isWikiaMobile() ) {
			$data = $helper->sanitizeInfoboxTitle( $type, $data );
		}

		return $this->templateEngine->clearData()
			->setData( $data )
			->render( $this->templates[ $type ] );
	}
}