import javax.print.PrintService;
import javax.print.PrintServiceLookup;
import java.awt.print.PrinterJob;
import java.lang.reflect.Field;
import java.lang.reflect.Method;

public class PrintDiagnostic {
    public static void main(String[] args) throws Exception {
        System.out.println("=== Java Print Service Diagnostic ===");
        System.out.println("Java Version: " + System.getProperty("java.version"));
        System.out.println("Java Home: " + System.getProperty("java.home"));
        System.out.println();
        
        // Check system properties
        System.out.println("1. System Properties:");
        String[] printProps = {
            "java.awt.printerjob",
            "sun.print.printservice", 
            "java.awt.headless",
            "javax.print.PrintService",
            "sun.java2d.print.polling",
            "cups.servers"
        };
        
        for (String prop : printProps) {
            System.out.printf("  %-30s = %s\n", prop, System.getProperty(prop));
        }
        
        // Check environment
        System.out.println("\n2. Environment Variables:");
        System.out.printf("  %-30s = %s\n", "CUPS_SERVER", System.getenv("CUPS_SERVER"));
        
        // Try to get PrinterJob
        System.out.println("\n3. PrinterJob Test:");
        try {
            PrinterJob pj = PrinterJob.getPrinterJob();
            System.out.println("  PrinterJob class: " + pj.getClass().getName());
            System.out.println("  Default printer: " + 
                (pj.getPrintService() != null ? pj.getPrintService().getName() : "null"));
        } catch (Exception e) {
            System.out.println("  Error getting PrinterJob: " + e.getMessage());
        }
        
        // Try PrintServiceLookup
        System.out.println("\n4. PrintServiceLookup Test:");
        try {
            PrintService[] services = PrintServiceLookup.lookupPrintServices(null, null);
            System.out.println("  Total services found: " + services.length);
            for (int i = 0; i < Math.min(services.length, 5); i++) {
                System.out.println("    [" + i + "] " + services[i].getName() + 
                                 " (" + services[i].getClass().getSimpleName() + ")");
            }
            if (services.length > 5) {
                System.out.println("    ... and " + (services.length - 5) + " more");
            }
        } catch (Exception e) {
            System.out.println("  Error: " + e.getMessage());
        }
        
        // Check default print service
        System.out.println("\n5. Default Print Service:");
        try {
            PrintService defaultService = PrintServiceLookup.lookupDefaultPrintService();
            System.out.println("  Default: " + 
                (defaultService != null ? defaultService.getName() : "null"));
        } catch (Exception e) {
            System.out.println("  Error: " + e.getMessage());
        }
        
        // Try to find CUPS classes
        System.out.println("\n6. CUPS Class Availability:");
        String[] cupsClasses = {
            "sun.print.CUPSPrinterJob",
            "sun.print.CUPSPrintService",
            "sun.print.PSPrinterJob",
            "sun.print.RasterPrinterJob",
            "sun.print.UnixPrintService"
        };
        
        for (String className : cupsClasses) {
            try {
                Class<?> clazz = Class.forName(className);
                System.out.println("  ✓ " + className + " (found)");
            } catch (ClassNotFoundException e) {
                System.out.println("  ✗ " + className + " (not found)");
            }
        }
        
        // Check module info
        System.out.println("\n7. Module Information:");
        Module printModule = javax.print.PrintService.class.getModule();
        System.out.println("  PrintService module: " + printModule.getName());
        System.out.println("  Module descriptor: " + printModule.getDescriptor());
    }
}