project/src/main/java/internal/hw/crawler/commands/InputParser.java

package internal.hw.crawler.commands;

public class InputParser {
    private InputParser() {}

    public static ParsedInput parse(String input) {
        String text = input == null ? "" : input.trim();
        if (text.isEmpty()) {
            return null;
        }
        String[] parts = text.split("\\s+");
        return new ParsedInput(parts[0].toLowerCase(), parts);
    }

    public static class ParsedInput {
        private final String command;
        private final String[] args;

        public ParsedInput(String command, String[] args) {
            this.command = command;
            this.args = args;
        }

        public String command() {
            return command;
        }

        public String[] args() {
            return args;
        }
    }
}