package com.rs.worldserver.util;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.nio.file.*;
import java.nio.file.attribute.BasicFileAttributes;
import java.util.ArrayDeque;

/**
 * @author Stan
 */

public class Scanner {

    public static final String CHARACTER_FILE_PATH = "./savedgames/";

    public static void main(final String... args) throws IOException {
        search();
    }

    public static void search() throws IOException{
        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));

        System.out.print("Enter your desired keyword: ");

        String keyword = reader.readLine();

        System.out.println("Started scanning all files...");
        long start = System.currentTimeMillis();
        try {
            Path path = Paths.get(CHARACTER_FILE_PATH);
            Files.walkFileTree(path, new SimpleFileVisitor<Path>() {
                @Override
                public FileVisitResult visitFile(Path path, BasicFileAttributes attrs) throws IOException {
                    System.out.print(path);
                    if(new String(Files.readAllBytes(path)).contains(keyword))
                        matches.add(path.toString());
                    return FileVisitResult.CONTINUE;
                }
            });
        } catch (IOException e) {
            System.out.println("Make sure this is in the same directory as "+CHARACTER_FILE_PATH);
        }
        long duration = System.currentTimeMillis() - start;
        System.out.println("Found "+matches.size()+" matches for the keyword "+keyword);
        matches.forEach(System.out::println);
        System.out.println("The scan toke " + duration + "ms to complete.");
        System.out.print("For another scan type -r: ");
        matches.clear();

        if(reader.readLine().equalsIgnoreCase("-r"))
            search();
        reader.close();
    }

    private static ArrayDeque<String> matches = new ArrayDeque<String>(200);

}