// Last edited on 2014-12-16 23:44:54 by stolfilocal

package quack;

public class ContactImpl implements Contact {

    private User sourceUser;
    private User targetUser;
    private long lastModTime;
    private String status;

    public ContactImpl() { }

    @Override
    public Contact initialize(User source, User target, String status, long lastModTime) {
        assert((source != null) && (target != null));
        assert(status.equals("Follow") || status.equals("Block") || status.equals("Inactive"));
        sourceUser = source;
        targetUser = target;
        this.lastModTime = lastModTime;
        this.status = status;
        return this;
    }

    @Override
    public User getSource() {
        return sourceUser;
    }

    @Override
    public User getTarget() {
        return targetUser;
    }

    @Override
    public long getLastModTime() {
        return lastModTime;
    }

	
    @Override
    public String getStatus() {
        return status;
    }

    @Override
    public void setStatus(String newStatus, long modTime) {
        assert(newStatus.equals("Inactive") || newStatus.equals("Follow") 
               || newStatus.equals("Block"));
        this.status = newStatus;
        this.lastModTime = modTime;
		
    }

}