SDIS1819-T6G05-P2

package peer;

import files.FileHandler;

import java.io.IOException;

import java.math.BigInteger;

import java.nio.file.Path;

import java.nio.file.Paths;

import java.util.Hashtable;

import chord.ChordManager;

public class Storage {

    private long spaceReserved;

    private long spaceOcupied;

    private Hashtable<BigInteger, String> fileStored;

    public Storage(long spaceReserved) throws IOException {

        this.spaceReserved = spaceReserved;

        updateSpaceOcupied();

        fileStored = new Hashtable<>();

    }

    public void insertHashtable(BigInteger hashFile, String fileName) {

        fileStored.put(hashFile, fileName);

    }

    public long getSpaceReserved() {

        return spaceReserved;

    }

    public long getSpaceOcupied() {

        return spaceOcupied;

    }

    public void updateSpaceOcupied() throws IOException {

        Path pathPeerFolder = Paths.get("./peerDisk/peer" + Peer.getPeerAccessPoint() + "-" + ChordManager.peerHash);

        this.spaceOcupied = FileHandler.getSize(pathPeerFolder) / 1024;

    }

    public void setSpaceReserved(long spaceReserved) throws IOException {

        this.spaceReserved = spaceReserved;

        updateSpaceOcupied();

        if (this.spaceReserved < this.spaceOcupied) {

            FileHandler.clearStorageSpace();

        }

    }

    public Hashtable<BigInteger, String > getHashtable() {

        return fileStored;

    }

}