import java.io.IOException;
import java.nio.file.FileVisitResult;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.SimpleFileVisitor;
import java.nio.file.attribute.BasicFileAttributes;
import java.util.concurrent.atomic.AtomicInteger;

public class FixPackageNames {
    public static void main(String[] args) {
        String rootDir = "d:/idea-workspace/Contract-Manager/server/src/main/java";
        AtomicInteger counter = new AtomicInteger(0);

        try {
            Path path = Paths.get(rootDir);
            // System.out.println(path.getFileName().toString());

            Files.walkFileTree(path, new SimpleFileVisitor<Path>() {
                @Override
                public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
                    // System.out.println(file.toString());
                    if (file.toString().endsWith(".java")) {
                        String content = new String(Files.readAllBytes(file));
                        // System.out.println(content);
                        if (content.indexOf("package com.ecep.contract.manager") >= 0) {
                            System.out.println(content);
                        }

                        String newContent = content
                                .replace("package com.ecep.contract.manager", "package com.ecep.contract")
                                .replace("import com.ecep.contract.manager", "import com.ecep.contract");
                        if (!content.equals(newContent)) {
                            Files.write(file, newContent.getBytes());
                            System.out.println("Fixed: " + file.toString());
                            counter.incrementAndGet();
                        }
                    }
                    return FileVisitResult.CONTINUE;
                }
            });

            System.out.println("Total files fixed: " + counter.get());
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}