import java.io.*;

import java.util.HashMap;

import java.util.Map;

public class ConfigMirror {

public static void main(String[] args) {

if (args.length != 2) {

System.out.println("Usage: java ConfigMirror <config_file> <output_file>");

return;

}

String configFile = args[0];

String outputFile = args[1];

Map<String, String> config = loadConfig(configFile);

Map<String, String> mirroredConfig = mirrorConfig(config);

try (BufferedWriter writer = new BufferedWriter(new FileWriter(outputFile))) {

for (Map.Entry<String, String> entry : mirroredConfig.entrySet()) {

writer.write(entry.getKey() + "=" + entry.getValue());

writer.newLine();

}

} catch (IOException e) {

System.err.println("Error writing to file: " + e.getMessage());

}

}

private static Map<String, String> loadConfig(String filename) {

Map<String, String> config = new HashMap<>();

try (BufferedReader reader = new BufferedReader(new FileReader(filename))) {

String line;

while ((line = reader.readLine()) != null) {

String[] parts = line.split("=");

if (parts.length == 2) {

config.put(parts[0].trim(), parts[1].trim());

}

}

} catch (IOException e) {

System.err.println("Error reading config file: " + e.getMessage());

return new HashMap<>(); // Return empty config on error

}

return config;

}

private static Map<String, String> mirrorConfig(Map<String, String> config) {

Map<String, String> mirroredConfig = new HashMap<>(config); // Create a copy

// Define default values

Map<String, String> defaults = new HashMap<>();

defaults.put("param1", "default_value_1");

defaults.put("param2", "default_value_2");

defaults.put("param3", "default_value_3");

for (Map.Entry<String, String> entry : defaults.entrySet()) {

if (!mirroredConfig.containsKey(entry.getKey())) {

mirroredConfig.put(entry.getKey(), entry.getValue());

}

}

return mirroredConfig;

}

}