package facade;

/**
 * Facade Design Pattern — Runnable Demo
 *
 * Demonstrates reducing a complex video conversion subsystem
 * to a single method call via a Facade.
 *
 * Run: javac facade/*.java && java facade.Main
 * Article: https://ankurm.com/facade-design-pattern-java/
 */
public class Main {

    public static void main(String[] args) {
        System.out.println("=== Facade Design Pattern Demo ===\n");

        VideoConversionFacade converter = new VideoConversionFacade();

        System.out.println("-- Client: just one method call --");
        String result1 = converter.convertVideo("holiday.ogg", "mp4");
        System.out.println("Output: " + result1);

        System.out.println();
        String result2 = converter.convertVideo("presentation.mp4", "ogg");
        System.out.println("Output: " + result2);

        System.out.println("\nClient code: 1 line. Subsystem: 6 classes. Facade hides the complexity.");
        System.out.println("\n=== Demo complete ===");
    }
}