save post meta

includes/Plugin.php

@@ -16,8 +16,54 @@ class Plugin {
 	 * Constructor.
 	 */
 	public function __construct() {
+		$meta_key = 'use_schedule';
 		new Assets();
-		new Term_UI( __DIR__ );
+		new Term_UI( __DIR__, $meta_key );
+		new Term_Meta( $meta_key );
+
+		foreach ( get_post_types() as $post_type ) {
+			$schema = array(
+				'items' => array(
+					'type'       => 'object',
+					'properties' => array(
+						'term'    => array(
+							'type' => 'string',
+						),
+						'is_active' => array(
+							'type' => 'boolean',
+						),
+						'datetime' => array(
+							'type'   => 'string',
+							'format' => 'datetime',
+						),
+					),
+				),
+			);
+			register_post_meta(
+				$post_type,
+				'use_schedule_set_attach_datetime',
+				array(
+					'single'            => true,
+					'type'         => 'array',
+					'show_in_rest' => array(
+						'schema' => $schema,
+					),
+				)
+			);
+
+			register_post_meta(
+				$post_type,
+				'use_schedule_set_detach_datetime',
+				array(
+
+					'single'            => true,
+					'type'         => 'array',
+					'show_in_rest' => array(
+						'schema' => $schema,
+					),
+				)
+			);
+		}
 	}
 
 }

includes/Term_Meta.php

@@ -0,0 +1,31 @@
+<?php
+/**
+ * The Term Meta class.
+ */
+namespace HAMWORKS\WP\Schedule_Terms;
+
+/**
+ *  Term Meta class.
+ */
+class Term_Meta {
+
+	/**
+	 * The single instance of the class.
+	 */
+	public function __construct( $meta_key ) {
+		foreach ( get_taxonomies() as $taxonomy ) {
+			register_term_meta(
+				$taxonomy,
+				$meta_key,
+				array(
+					'show_in_rest'      => true,
+					'single'            => true,
+					'type'              => 'boolean',
+					'sanitize_callback' => function ( $value ) {
+						return (bool) $value;
+					},
+				)
+			);
+		}
+	}
+}

includes/Term_UI.php

@@ -33,15 +33,17 @@ class Term_UI extends UI {
 	 *
 	 * @var string
 	 */
-	public $meta_key = 'use_schedule';
+	public $meta_key = '';
 
 	/**
 	 * Constrouctor.
 	 *
 	 * @param string $file Plugin file.
+	 * @param string $meta_key Metadata key.
 	 */
-	public function __construct( $file = '' ) {
-		$this->labels = array(
+	public function __construct( $file, string $meta_key ) {
+		$this->meta_key = $meta_key;
+		$this->labels   = array(
 			'singular' => esc_html__( 'Scheduled', 'schedule-posts' ),
 		);