import java.io.File;

import java.io.FileWriter;

import java.io.IOException;

import java.util.Scanner;

class Employee_Update implements FileFunctions {

@Override

public void createFileBaseHTML() throws IOException {

// Not implemented

}

@Override

public void listUserdataFiles() throws IOException {

// Not implemented

}

@Override

public void removeFile(String id) throws IOException {

// Not implemented

}

@Override

public void viewFile(String id) throws IOException {

// Not implemented

}

public void updateFile(String id, String oldData, String newData) {

File file = new File(FileFunctions.USER_DATA_DIR + "employee" + id + ".html");

if (!file.exists()) {

System.out.println("Employee record not found.");

return;

}

try (Scanner sc = new Scanner(file);

FileWriter writer = new FileWriter(file)) {

StringBuilder fileContent = new StringBuilder();

while (sc.hasNextLine()) {

fileContent.append(sc.nextLine()).append("\n");

}

String content = fileContent.toString();

if (!content.contains(oldData)) {

System.out.println("The old data was not found in the file.");

return;

}

String updatedContent = content.replace(oldData, newData);

writer.write(updatedContent);

System.out.println("Employee record has been updated successfully!");

} catch (IOException e) {

System.out.println("Error: " + e.getMessage());

}

}

}