/** @module run */

/**
 * Helper class that closes previously opened components.
 * 
 * [[IClosable]]
 */
export class Closer {
	/**
	 * Closes specific component.
	 * 
	 * To be closed components must implement [[ICloseable]] interface.
	 * If they don't the call to this method has no effect.
	 * 
	 * @param correlationId 	(optional) transaction id to trace execution through call chain.
	 * @param component 		the component that is to be closed.
	 * 
	 * @see [[IClosable]]
	 */
	public static async closeOne(correlationId: string, component: any): Promise<void> {
        if (typeof component.close === "function") {
			await component.close(correlationId);
		}
	}

	/**
	 * Closes multiple components.
	 * 
	 * To be closed components must implement [[ICloseable]] interface.
	 * If they don't the call to this method has no effect.
	 * 
	 * @param correlationId 	(optional) transaction id to trace execution through call chain.
	 * @param components 		the list of components that are to be closed.
	 * 
	 * @see [[closeOne]]
	 * @see [[IClosable]]
	 */
	public static async close(correlationId: string, components: any[]): Promise<void> {
		for (let component of components) {
			await Closer.closeOne(correlationId, component);
		}
	}
}