<?php
if ( ! defined( 'ABSPATH' ) ) { exit; }

class ICB_Shortcode {
	private $post_type = 'icb';

	public function __construct() {
		add_action( 'admin_enqueue_scripts', [ $this, 'adminEnqueueScripts' ] );
		add_action( 'init', [ $this, 'onInit' ] );
		add_shortcode( 'icb', [ $this, 'onAddShortcode' ] );

		add_filter( 'manage_icb_posts_columns', [ $this, 'manageICBPostsColumns' ], 10 );
		add_action( 'manage_icb_posts_custom_column', [ $this, 'manageICBPostsCustomColumns' ], 10, 2 );

		add_filter( 'use_block_editor_for_post', [ $this, 'useBlockEditorForPost' ], 999, 2 );
	}

	function onInit() {
		// Mirror pdf-embed-block: premium users see the selector UI,
		// free users get the default card block directly.
		if ( info_cards_is_premium() ) {
			$template = [ [ 'icb/info-cards-selector' ] ];
		} else {
			$template = [ [ 'icb/cards' ] ];
		}

		register_post_type( $this->post_type, [
			'labels' => [
				'name'               => __( 'ShortCodes', 'info-cards' ),
				'singular_name'      => __( 'ShortCode', 'info-cards' ),
				'add_new'            => __( 'Add New', 'info-cards' ),
				'add_new_item'       => __( 'Add New ShortCode', 'info-cards' ),
				'edit_item'          => __( 'Edit ShortCode', 'info-cards' ),
				'new_item'           => __( 'New ShortCode', 'info-cards' ),
				'view_item'          => __( 'View ShortCode', 'info-cards' ),
				'search_items'       => __( 'Search ShortCodes', 'info-cards' ),
				'not_found'          => __( 'Sorry, we couldn\'t find the ShortCode you are looking for.', 'info-cards' ),
			],
			'public'              => false,
			'show_ui'             => true,
			'show_in_rest'        => true,
			'publicly_queryable'  => false,
			'show_in_menu'        => 'info-cards-dashboard',
			'exclude_from_search' => true,
			'menu_position'       => 14,
			'has_archive'         => false,
			'hierarchical'        => false,
			'capability_type'     => 'page',
			'rewrite'             => [ 'slug' => 'apb' ],
			'supports'            => [ 'title', 'editor' ],
			'template'            => $template,
			'template_lock'       => 'all',
		] );
	}

	function onAddShortcode( $atts ) {
		$atts = shortcode_atts( [
			'id' => 0,
		], $atts, 'icb' );

		$post_id = intval( $atts['id'] );
		if ( ! $post_id ) {
			return '';
		}

		$post = get_post( $post_id );
		if ( ! $post ) {
			return '';
		}

		if ( post_password_required( $post ) ) {
			return get_the_password_form( $post );
		}

		switch ( $post->post_status ) {
			case 'publish':
				return $this->displayContent( $post );

			case 'private':
				if ( current_user_can( 'read_private_posts' ) ) {
					return $this->displayContent( $post );
				}
				return '';

			case 'draft':
			case 'pending':
			case 'future':
				if ( current_user_can( 'edit_post', $post_id ) ) {
					return $this->displayContent( $post );
				}
				return '';

			default:
				return '';
		}
	}

	function displayContent( $post ) {
		$blocks = parse_blocks( $post->post_content );
		if ( empty( $blocks ) || ! isset( $blocks[0] ) ) {
			return '';
		}
		return render_block( $blocks[0] );
	}

	function manageICBPostsColumns( $defaults ) {
		unset( $defaults['date'] );
		$defaults['shortcode'] = __( 'ShortCode', 'info-cards' );
		$defaults['date']      = __( 'Date', 'info-cards' );
		return $defaults;
	}

	function manageICBPostsCustomColumns( $column_name, $post_ID ) {
		if ( $column_name === 'shortcode' ) {
			echo '<div class="bPlAdminShortcode" id="bPlAdminShortcode-' . esc_attr( $post_ID ) . '">
				<input readonly value="[icb id=&quot;' . esc_attr( $post_ID ) . '&quot;]" onclick="copyBPlAdminShortcode(\'' . esc_attr( $post_ID ) . '\')">
				<span class="tooltip">' . esc_html__( 'Copy To Clipboard', 'info-cards' ) . '</span>
			</div>';
		}
	}

	function useBlockEditorForPost( $use, $post ) {
		if ( is_object( $post ) && isset( $post->post_type ) && $this->post_type === $post->post_type ) {
			return true;
		}
		return $use;
	}

	function adminEnqueueScripts( $hook ) {
		$screen = get_current_screen();
		if ( ! $screen || $screen->post_type !== $this->post_type ) {
			return;
		}

		if ( in_array( $hook, [ 'edit.php', 'post.php' ], true ) ) {
			wp_enqueue_style( 'icb-admin-post', ICB_DIR . 'build/admin-post.css', [], ICB_VERSION );
			wp_enqueue_script( 'icb-admin-post', ICB_DIR . 'build/admin-post.js', [], ICB_VERSION, true );
			wp_set_script_translations( 'icb-admin-post', 'info-cards', ICB_DIR_PATH . 'languages' );
		}
	}
}

new ICB_Shortcode();
