<?php

if( class_exists('ACD') == false ):

/**
 * The ACD Class.
 */
class ACD {

    /**
     * Hook into the appropriate actions when the class is constructed.
     */
    public function __construct() {
        add_action( 'init',           array( $this, 'register_post_type' ) );
        add_action( 'add_meta_boxes', array( $this, 'add_meta_box' ) );
        add_action( 'save_post',      array( $this, 'save'         ) );
    }
    
    /**
     * Register `acd-data` post type.
     *
     * @link https://developer.wordpress.org/reference/functions/register_post_type/
     */
    function register_post_type()
    {
        $labels = array(
            'name'               => _x( 'Custom Data', 'post type general name', 'acd' ),
            'singular_name'      => _x( 'Custom Data', 'post type singular name', 'acd' ),
            'menu_name'          => _x( 'Custom Data', 'admin menu', 'acd' ),
            'name_admin_bar'     => _x( 'Custom Data', 'add new on admin bar', 'acd' ),
            'add_new'            => _x( 'Add New', 'Custom Data', 'acd' ),
            'add_new_item'       => __( 'Add New Data', 'acd' ),
            'new_item'           => __( 'New Data', 'acd' ),
            'edit_item'          => __( 'Edit Data', 'acd' ),
            'view_item'          => __( 'View Data', 'acd' ),
            'all_items'          => __( 'All Data', 'acd' ),
            'search_items'       => __( 'Search Data', 'acd' ),
            'parent_item_colon'  => __( 'Parent Data:', 'acd' ),
            'not_found'          => __( 'No Data found.', 'acd' ),
            'not_found_in_trash' => __( 'No Data found in Trash.', 'acd' )
        );

        $args = array(
            'labels'             	=> $labels,
            'description'        	=> __( 'Description', 'acd' ),
            'public'             	=> false,
            'publicly_queryable' 	=> false,
            'show_ui'            	=> true,
            'show_in_menu'       	=> true,
            'query_var'          	=> true,
            'rewrite'            	=> false,
            'taxonomies'    	 	=> array(),
            'capability_type'    	=> 'post',
            'has_archive'        	=> false,
            'hierarchical'       	=> true,
            'menu_position'      	=> 99,  // 20: below Pages
            // https://developer.wordpress.org/resource/dashicons/#megaphone
            'menu_icon'    			=> 'dashicons-media-spreadsheet', 
            'supports'           	=> array( 'title', 'thumbnail', 'custom-fields' )
        );

        register_post_type( 'acd-data', $args );
    }
 
    /**
     * Adds the meta box container.
     */
    public function add_meta_box( $post_type ) {
        // Limit meta box to certain post types.
        $post_types = array( 'acd-data' );
        
        if ( in_array( $post_type, $post_types ) ) {
            add_meta_box(
                'acd_meta_box',
                __( 'Custom Data', 'acd' ),
                array( $this, 'render_meta_box_content' ),
                $post_type,
                'advanced',
                'high'
            );
        }
    }
    
    /**
     * Save the meta when the post is saved.
     *
     * @param int $post_id The ID of the post being saved.
     */
    public function save( $post_id ) {
 
        /*
         * We need to verify this came from the our screen and with proper authorization,
         * because save_post can be triggered at other times.
         */
 
        // Check if our nonce is set.
        if ( ! isset( $_POST['acd_inner_custom_box_nonce'] ) ) {
            return $post_id;
        }
 
        $nonce = $_POST['acd_inner_custom_box_nonce'];
 
        // Verify that the nonce is valid.
        if ( ! wp_verify_nonce( $nonce, 'acd_inner_custom_box' ) ) {
            return $post_id;
        }
        
        /*
         * If this is an autosave, our form has not been submitted,
         * so we don't want to do anything.
         */
        if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) {
            return $post_id;
        }
 
        /* OK, it's safe for us to save the data now. */
 
        // Sanitize the user input.
        // $data = sanitize_textarea_field( $_POST['acd_data'] );
        $type = sanitize_text_field( $_POST['acd_type'] );
        // $data = $_POST['acd_data'];
        $data = sanitize_post_field( 'post_content', $_POST['acd_data'], $post_id, 'edit' );

        // Update the meta field.
        update_post_meta( $post_id, '_acd_data', $data );
        update_post_meta( $post_id, '_acd_type', $type );
    }
 
 
    /**
     * Render Meta Box content.
     *
     * @param WP_Post $post The post object.
     */
    public function render_meta_box_content( $post ) {
 
        // Add an nonce field so we can check for it later.
        wp_nonce_field( 'acd_inner_custom_box', 'acd_inner_custom_box_nonce' );
        
        // Use get_post_meta to retrieve an existing value from the database.
        $type = sanitize_text_field( get_post_meta( $post->ID, '_acd_type', true ) );
        // $data = get_post_meta( $post->ID, '_acd_data', true );
        $data = sanitize_post_field( 'post_content', get_post_meta( $post->ID, '_acd_data', true ), $post->ID, 'edit' );
        
        // Display the form, using the current value.

        $type_options = array(
            ''          => 'Text',
            'br'        => 'Automatically add br',
            'list'      => 'List',
            'thumbnail' => 'Thumbnail',
            'script'    => 'Script'
        );
        ?>
        <p>
            <textarea name="acd_data" style="width: 100%; height: 100px;"><?php echo $data; ?></textarea>
        </p>
        <p>
            <label for="acd_type">
                <?php _e( 'Type', 'acd' ); ?>
            </label>
            <select id="acd_type" name="acd_type">
                <?php foreach( $type_options as $key => $value ) : ?>
                <option value="<?php echo esc_attr($key);?>" <?php 
                    echo esc_attr($type == $key ? 'selected' : '');
                ?>><?php _e( $value, 'acd' ); ?></option>
                <?php endforeach;?>
            </select>
        </p>
        <p>
            <strong>
                <?php _e( 'Show text in content post', 'acd' ); ?>
            </strong>
        </p>
        <p>
            <input value="[acd-data id=<?php echo $post->ID; ?>]" />
        </p>
        <p>
            <strong>
                <?php _e( 'Show list in Contact Form 7', 'acd' ); ?>:
            </strong>
            [select your-list acd-data:<?php echo $post->ID; ?> ], 
            [checkbox your-check acd-data:<?php echo $post->ID; ?> ], 
            [radio your-radio acd-data:<?php echo $post->ID; ?> ]
        </p>
        <p>
            <input value="acd-data:<?php echo $post->ID; ?>" />
        </p>
        <?php
    }
}

new ACD();

endif;