<?php

namespace PluginNamespace\Admin;

class Settings {

	/**
	 * Class constructor.
	 *
	 * @since 1.0.0
	 *
	 * @return void
	 */
	public function __construct() {
		add_action( 'admin_menu', array( $this, 'append_to_admin_menu' ), 12 );

		add_action( 'admin_enqueue_scripts', array( $this, 'register_scripts' ) );
	}

	/**
	 * Append to the admin menu (prevents doubling).
	 *
	 * @since 1.0.0
	 *
	 * @return void
	 */
	public function append_to_admin_menu(): void {
		$parent_slug = 'nmsp-plugin-name-menu-slug';
		$page_title = __( 'Namespace Plugin Name - Settings', 'nmsp_plugin_name_settings_title' );
		$menu_title = __( 'Settings', 'nmsp_plugin_name_settings_title' );
		$capability = 'manage_options';
		$menu_slug = $parent_slug;
		$callback = array( $this, 'show_main_settings_page' );

		add_submenu_page( $parent_slug, $page_title, $menu_title, $capability, $menu_slug, $callback );
	}

	/**
	 * Show the settings page.
	 *
	 * @since 1.0.0
	 *
	 * @return string
	 */
	public function show_main_settings_page(): string {
		$data = array();

		$this->localize_script();

		ob_start();
		echo nmsp_plugin_app()->blade->run( 'admin.settings', $data );
		$output = ob_get_clean();
		return wp_kses_post( $output );
	}

	/**
	 * Register and enqueue stylesheets and javascript files.
	 *
	 * @since 1.0.0
	 *
	 * @return void
	 */
	public function register_scripts(): void {
		wp_enqueue_style( 'nmsp-plugin-name-admin-css', plugins_url( '../assets/css/nmsp-plugin-name-admin.css', __FILE__ ), array(), '1.0.0', 'screen' );

		wp_register_script( 'nmsp-plugin-name-admin-js', plugins_url( '../assets/js/nmsp-plugin-name-admin.js', __FILE__ ), array( 'jquery' ), '1.0.0', false );
	}

	/**
	 * Description
	 *
	 * @since 1.0.0
	 *
	 * @param array $additional_data  (optional) Additional key-value paired data to pass to JavaScript.
	 *
	 * @return void
	 */
	private function localize_script( array $additional_data = array() ): void {
		wp_enqueue_script( 'nmsp-plugin-name-admin-js' );

		$payload = array(
			'wp_ajax_url' => admin_url( 'admin-ajax.php' ),
			'_nonce'      => wp_create_nonce( NMSP_PLUGIN_NONCE ),
		);
		wp_localize_script( 'nmsp-plugin-name-admin-js', 'nmspPluginAdminApi', $payload );
	}

}

new Settings();