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namespace CarouselSlider\Abstracts;

use CarouselSlider\Helper;
use WP_Error;

defined( 'ABSPATH' ) || exit;

/**
 * AbstractTemplate class
 * The base template class for any slider type
 *
 * @package CarouselSlider/Abstracts
 */
abstract class AbstractTemplate {
	/**
	 * Get default image carousel settings
	 *
	 * @return array
	 */
	public static function get_default_settings(): array {
		return [
			// General Settings.
			'_image_size'                  =&gt; 'medium',
			'_stage_padding'               =&gt; '0',
			'_margin_right'                =&gt; (string) Helper::get_default_setting( 'margin_right' ),
			'_lazy_load_image'             =&gt; Helper::get_default_setting( 'lazy_load_image' ),
			'_infinity_loop'               =&gt; 'on',
			'_auto_width'                  =&gt; 'off',
			// Autoplay Settings.
			'_autoplay'                    =&gt; 'on',
			'_autoplay_pause'              =&gt; 'on',
			'_autoplay_timeout'            =&gt; '5000',
			'_autoplay_speed'              =&gt; '500',
			// Navigation Settings.
			'_nav_button'                  =&gt; 'always',
			'_slide_by'                    =&gt; '1',
			'_arrow_position'              =&gt; 'outside',
			'_arrow_size'                  =&gt; '48',
			'_dot_nav'                     =&gt; 'on', // Always.
			'_bullet_position'             =&gt; 'center',
			'_bullet_size'                 =&gt; '10',
			'_bullet_shape'                =&gt; 'circle',
			'_nav_color'                   =&gt; Helper::get_default_setting( 'nav_color' ),
			'_nav_active_color'            =&gt; Helper::get_default_setting( 'nav_active_color' ),
			// Responsive Settings.
			'_items_portrait_mobile'       =&gt; '1',
			'_items_small_portrait_tablet' =&gt; '2',
			'_items_portrait_tablet'       =&gt; '3',
			'_items_small_desktop'         =&gt; '3',
			'_items_desktop'               =&gt; '3',
			'_items'                       =&gt; '4',
		];
	}

	/**
	 * Get list of images sorted by its width and height
	 *
	 * @param string $image_size The image size.
	 * @param int    $per_page Item per page.
	 *
	 * @return array
	 */
	public static function get_images( string $image_size = 'full', int $per_page = 100 ): array {
		$args        = array(
			'order'          =&gt; 'DESC',
			'post_type'      =&gt; 'attachment',
			'post_mime_type' =&gt; 'image',
			'post_status'    =&gt; 'any',
			'posts_per_page' =&gt; $per_page,
		);
		$attachments = get_posts( $args );

		$images = [];

		foreach ( $attachments as $attachment ) {
			if ( ! in_array( $attachment-&gt;post_mime_type, [ 'image/jpeg', 'image/png' ], true ) ) {
				continue;
			}

			$src        = wp_get_attachment_image_src( $attachment-&gt;ID, $image_size );
			$_link_url  = get_post_meta( $attachment-&gt;ID, '_carousel_slider_link_url', true );
			$_image_alt = get_post_meta( $attachment-&gt;ID, '_wp_attachment_image_alt', true );

			$images[] = [
				'id'           =&gt; $attachment-&gt;ID,
				'title'        =&gt; $attachment-&gt;post_title,
				'description'  =&gt; $attachment-&gt;post_content,
				'caption'      =&gt; $attachment-&gt;post_excerpt,
				'alt_text'     =&gt; $_image_alt,
				'link_url'     =&gt; $_link_url,
				'image_src'    =&gt; $src[0],
				'image_width'  =&gt; $src[1],
				'image_height' =&gt; $src[2],
			];
		}

		$widths  = wp_list_pluck( $images, 'image_width' );
		$heights = wp_list_pluck( $images, 'image_height' );

		// Sort the $images with $widths and $heights descending.
		array_multisort( $widths, SORT_DESC, $heights, SORT_DESC, $images );

		return $images;
	}

	/**
	 * Create a new slider.
	 *
	 * @param string $slider_title The slider title.
	 *
	 * @return int|WP_Error The post ID on success. The value 0 or \WP_Error on failure.
	 */
	public static function create_slider( string $slider_title ) {
		return Helper::create_slider( $slider_title );
	}
}
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