#ifndef __POP3Command_h__
# define __POP3Command_h__

# include "Command.h"
# include "POP3Session.h"

namespace mail {

   class POP3Server;

   // RFC 1939 3: POP3 message numbers are 1-based positions in the
   // maildrop's fixed-for-the-session ordering - session.mailbox's own
   // ascending-by-UID message list, loaded once at PASS and never
   // reloaded mid-session, already IS that fixed ordering, so message
   // number N is simply session.mailbox.messages()[N-1]. Returns
   // nullptr for an out-of-range number OR a number already marked
   // \Deleted this session (RFC 1939 3: "the POP3 server MUST NOT" let
   // a deleted message be referenced by any command).
   MailFolder::Message *pop3FindMessage(POP3Session &session, int msgNum);

   // Shared by RETR and TOP - RFC 1939 3's byte-stuffing rule (any line
   // starting with "." gets an extra "." prepended, same transparency
   // rule as SMTP DATA, RFC 5321 4.5.2) applies to both, and TOP is
   // otherwise identical to RETR except it stops after maxBodyLines
   // lines of body (headers and the header/body blank line always go
   // out in full either way). maxBodyLines < 0 means unlimited (RETR's
   // own call site).
   void pop3SendMessage(POP3Session &session, const std::string &content, int maxBodyLines);

   class POP3Command : public core::Command {

    public:
      virtual int processCommand(coreutils::ZString &request, core::TCPSession &session) override;
      virtual int processCommand(coreutils::ZString request, POP3Session &session, POP3Server &server);

   };

}

#endif