import MessageException;
import FolderException;
import LoginException;
import NetworkConnection;
import MessageHeader;
import MailMessage;

/**
 * A protocal for Java to interact with an IMAP server
 *
 * @author Ben Kaiser
 * @author Josh Vickery
 * @version 1.1 of October 1999
 *
 * @modified from version 1.0 to include better headers, separate into multiple
 * @classes, and actually compile.
 */

public interface MailboxInterface {


    /**
     * Attempt to login to the server
     * This will attempt to create a NetworkConnection using the 
     * NetworkConnection class, with a server name and port deterimined by
     * the preferances class.  If successful it will attemp to login using
     * the given name and passwd
     * @exception LoginExcpetion
     * when it is a bad UserName Password combo
     */
    
    public void login(String username, String passwd)
	throws LoginException, Exception;
    
    

    /**closes the imap socket.
     Pre:  there is an IMAP socket open.*/
    public void bye();
    
      


    /*



                Folder Commands



     */





    /** list the folders in the account, in the form of an array.  
        
        pre:  we are currently logged in to an imap server.
        
        returns:  an array of strings, which are the folder names of the 
        account currently logged in to teh server.*/
    
    public String listFolders();    
    

    /**delete a specific folder and its contenets.  throws
       FolderException if the given folder does not exist.
       
       pre:  we are currently logged in to an imap server.*/
    public void deleteFolder(String folderName)
        throws  FolderException; 
    

    /**create an empty folder with the specified name.  Throws folderException 
       if a folder of that name cannot be created.
       
       pre:  we are currently logged in to an imap server.*/
    public void createFolder(String folderName)
        throws  FolderException;


/** get the contents of a folder, returns an array of headers, throws
    FolderException if the specified folder doesn't exist or cannot be 
    accessed.
    pre:  we are currently logged into an IMAP server.  

    returns an array of MessageHeaders, which are teh headers of the messages 
    in teh active folder.*/
   

    /*will return an array of MessageHeaders when they exist, but strings 
      for now.*/
    public String[] getFolderContents()
    throws Exception;
    
    /**renames a folder, throws FolderException when a folder cannot be created
       with that name.  

       Pre:  we are currently logged into an IMAP server.*/ 
    public void renameFolder(String folderName, String newFolderName)
        throws FolderException;


/**Sets the active folder.  throws FolderException that folder doesn't exist, 
   or is otherwise unavaliable.

   Pre:  we are currently logged in to an IMAP server.  */
    public void setFolder(String folderName)
        throws FolderException, Exception;

    /**




                Message Commands




     */

    /**Deletes a message, throws MessageException if the message in question 
       doesn't exist.

    Pre:  we're logged in to an IMAP server, and have a valid folder set as 
    active.*/
    public void deleteMessage(int MessageName)
    throws MessageException;



    /**Get the contents of a message, returns a MailMessage, throws
    MessageException when teh message in question doesn't exist, or is 
    otherwise unabaliable.  

    pre:  we are logged in to an IMAP server.*/

    public String getMessage(int messageID, String[] headers)
        throws MessageException;//, java.io.IOException;


  





}//Mailbox