package de.tudarmstadt.informatik.hostage.logging;

import java.util.ArrayList;
/**
 * Interface to define which functionality is needed for a Logger in this application.
 * @author Mihai Plasoianu 
 * @author Lars Pandikow
 *
 */
public interface Logger {
	/**
	 * Write a single Record to the log.
	 * @param record The Record that has to be added.
	 */
	void write(Record record);
	
	/**
	 * Returns all saved Records.
	 * @return ArrayList which contains all Records from the log.
	 */
	ArrayList<Record> getAllRecords();
	/**
	 * Returns a single Record as representative for each attack with an attack id higher then the given.
	 * @param lastUploadedAttackId The threshold value for attack id's
	 * @return ArrayList which contains one Record for each attack.
	 */
	ArrayList<Record> getRecordOfEachAttack(int lastUploadedAttackId);
	/**
	 * 
	 * @param attack_id Attack id of the record
	 * @return A Record with a specific attack id, or null if there is no Record with such an attack id.
	 */
	Record getRecordOfAttackId(long attack_id);
	
	/**
	 * Determines the number of recorded attacks.
	 * @return he Number of Attacks.
	 */
	int getAttackCount();	
	/**
	 * Returns the number of recorded attack for a specific protocol.
	 * @param protocol The considered protocol.
	 * @return The Number of recorded attacks per protocol.
	 */
	int getAttackPerProtokolCount(String protocol);
	/**
	 * Finds the smallest saved attack id.
	 * @return The smallest saved attack id.
	 */
	long getSmallestAttackId();
	/**
	 * Finds the highest saved attack id.
	 * @return The highest saved attack id.
	 */
	long getHighestAttackId();
	
	/**
	 * Determines if an attack on a given protocol has already been recorded in a network with a specific BSSID.
	 * @param protocol The considered protocol.
	 * @param bssid The considered BSSID.
	 * @return True if there has been a attack on a protocol in a network with the given BSSID, else returns false.
	 */
	boolean bssidSeen(String protocol, String bssid);
	/**
	 * Returns all BSSIDs in which an attack has been recorded.
	 * @return String arrays with all recorded BSSIDs
	 */
	String[] getAllBSSIDS();
	/**
	 * Returns the last known SSID of a network with a specific BSSID.
	 * @param bssid The considered BSSID.
	 * @return String representation of the searched SSID, or null if there is no entry with the given BSSID
	 */
	String getSSID(String bssid);
	
	/**
	 * Deletes all Records with a smaller time stamp than the given.
	 * @param time The time stamp to compare with.
	 */
	void deleteByDate(long time);
	/**
	 * Deletes all Record which contain the given BSSID.
	 * @param bssid The BSSID to compare with.
	 */
	void deleteByBSSID(String bssid);
	/**
	 * Resets complete log file.
	 */
	void clearData();
}