zdate

#!/usr/bin/env -S java --source 25

/**
 * zdate - prints and copies the current date to the system clipboard
 *         default: dd.MM.yyyy, -y: yyyy.MM.dd
 */

import module java.desktop;

String version = "2026-02-14.1";

enum Log {

    ERROR(Color.BRIGHT_RED, System.err),
    INFO(Color.BRIGHT_GREEN, System.out),
    SYSTEM(Color.SKY_BLUE, System.out);

    PrintStream out;

    enum Color {
        BRIGHT_RED("\033[38;5;196m"),
        BRIGHT_GREEN("\033[38;5;46m"),
        SKY_BLUE("\033[38;5;39m");

        String code;

        Color(String code) {
            this.code = code;
        }
    }

    private final String value;
    private final static String RESET = "\u001B[0m";

    private Log(Color color, PrintStream out) {
        this.value = (color.code + "%s" + RESET);
        this.out = out;
    }

    public void out(String message) {
        this.out.println(this.value.formatted(message));
    }

    public static void error(String message) {
        Log.ERROR.out(message);
    }

    public static void info(String message) {
        Log.INFO.out(message);
    }

    public static void stop(String message) {
        error(message);
        System.exit(1);
    }
}

void main(String[] args) {
    var pattern = args.length > 0 && "-y".equals(args[0]) ? "yyyy.MM.dd" : "dd.MM.yyyy";
    var now = LocalDate.now();
    var dayOfWeek = now.getDayOfWeek().getDisplayName(TextStyle.FULL, Locale.ENGLISH);
    var date = now.format(DateTimeFormatter.ofPattern(pattern));
    copyToClipboard(date);
    Log.info("zdate v%s - %s %s (copied to clipboard)"
    .formatted(version,dayOfWeek,date));
}

void copyToClipboard(String text) {
    try {
        var clipboard = Toolkit.getDefaultToolkit().getSystemClipboard();
        clipboard.setContents(new StringSelection(text), null);
    } catch (Exception e) {
        Log.stop("Failed to copy to clipboard: " + e.getMessage());
    }
}