Settings page Generator

                    class WP_Turbo_My_Plugin_Settings {
	public function __construct() {
		// Register the settings page.
		add_action( 'admin_menu', array( $this, 'register_settings' ) );

		// Register the sections.
		add_action( 'admin_init', array( $this, 'register_sections' ) );

		// Register the fields.
		add_action( 'admin_init', array( $this, 'register_fields' ) );
	}

	// Register settings.
	public function register_settings(){
		add_menu_page(
			'Settings', // The title of your settings page.
			'My Plugin\'s Settings Page', // The name of the menu item.
			'manage_options', // The capability required for this menu to be displayed to the user.
			'my-plugin-settings', // The slug name to refer to this menu by (should be unique for this menu).
			array( $this, 'render_settings_page' ), // The callback function used to render the settings page.
			'dashicons-menu', // The icon to be used for this menu.
			2 // The position in the menu order this one should appear.
		);
	}

	// Register sections.
	public function register_sections(){
		add_settings_section( 'my-plugin-settings-section', '', array(), 'MyMenuName' );
	}

	// Register fields.
	public function register_fields(){
		$fields = array(
			'' => array(
				'section' => 'my-plugin-settings-section',
				'label' => '',
				'type' => 'text',
			),
		);
		foreach( $fields as $id => $field ){
			$field['id'] = $id;
			add_settings_field( $id, $field['label'], array( $this, 'render_field' ), 'my-plugin-settings-section', $field['section'], $field );
			register_setting( 'my-plugin-settings-section', $id );
		}
	}

	// Render individual fields.
	public function render_field( $field ){
		$value = get_option( $field['id'] );

		switch ( $field['type'] ) {
			case 'textarea':{
				echo "<textarea name='{$field['id']}' id='{$field['id']}'>$value</textarea>";
				break;
			}
			case 'checkbox':{
				echo "<input type='checkbox' name='{$field['id']}' id='{$field['id']}' " . ($value === '1' ? 'checked' : '') . " />";
				break;
			}
			case 'wysiwyg':{
				wp_editor($value, $field['id']);
				break;
			}
			case 'select':{
				if( is_array( $field['options'] ) && !empty( $field['options'] ) ) {
					echo "<select name='{$field['id']}' id='{$field['id']}'>";
					foreach( $field['options'] as $key => $option ){
						echo "<option value='$key' ". ($value === $key ? 'selected' : '') .">$option</option>";
					}
					echo "</select>";
				}
				break;
			}
			default:{
				echo "<input name='{$field['id']}' id='{$field['id']}' type='{$field['type']}'>$value</textarea>";
				break;
			}
		}

		if( isset($field['description']) ){
			echo "<p class='description'>{$field['description']}</p>";
		}
	}

	// Render the settings page.
	public function render_settings_page(){
		echo "<div class='wrap'>";
			echo "<h1>Settings</h1>";
			settings_errors();
			echo "<form method='POST' action='options.php'>";
				settings_fields( 'my-plugin-settings' );
				do_settings_sections( 'my-plugin-settings' );
				submit_button();
			echo "</form>";
		echo "</div>";
	}


}