/**
 *  @file operator-delete.cc
 *  @briefe  Implementation of the DELETE command.
 *  @author Andreas Aardal Hanssen
 *  @date 2002-2005
 */

#include "convert.h"
#include "depot.h"
#include "imapparser.h"
#include "mailbox.h"
#include "operators.h"
#include "recursivedescent.h"
#include "session.h"

#include <string>

using namespace Binc;

DeleteOperator::DeleteOperator() {}

DeleteOperator::~DeleteOperator() {}

const std::string DeleteOperator::getName() const
{
  return "DELETE";
}

Session::State DeleteOperator::getState() const
{
  return Session::State(Session::AUTHENTICATED | Session::SELECTED);
}

Operator::ProcessResult DeleteOperator::process(Depot &depot, Request &command)
{
  if (depot.deleteMailbox(command.getMailbox())) {
    return Operator::ProcessResult::OK;
  } else {
    Session &session = Session::getInstance();
    session.setLastError(depot.getLastError());
    return Operator::ProcessResult::NO;
  }
}

Parser::ParseResult DeleteOperator::parse(Request &c_in, Parser &p)
{
  constexpr auto ACCEPT = Parser::ParseResult::ACCEPT;

  Session &session = Session::getInstance();

  if (c_in.getUidMode()) return Parser::ParseResult::REJECT;

  Parser::ParseResult res;
  if ((res = p.expectSPACE()) != ACCEPT) {
    session.setLastError("Expected SPACE after DELETE");
    return res;
  }

  std::string mailbox;
  if ((res = p.expectMailbox(mailbox)) != ACCEPT) {
    session.setLastError("Expected mailbox after DELETE SPACE");
    return res;
  }

  if ((res = p.expectCRLF()) != ACCEPT) {
    session.setLastError("Expected CRLF after DELETE SPACE mailbox");
    return res;
  }

  session.mailboxchanges = true;

  c_in.setName("DELETE");
  c_in.setMailbox(mailbox);
  return ACCEPT;
}