#include "__IMAP_UNSUBSCRIBE.h"
#include "__IMAP_SUBSCRIBE.h"
#include "IMAPArgs.h"
#include "IMAPServer.h"
#include <algorithm>

namespace mail {

   int __IMAP_UNSUBSCRIBE::processCommand(coreutils::ZString &request, IMAPSession &session, IMAPServer &server) {
      if (session.state == IMAPSession::NOT_AUTHENTICATED) {
         session.out << session.tag << " NO Not authenticated" << CRLF;
         return 1;
      }

      coreutils::ZString nameArg = IMAPArgs::nextArgument(request);
      std::string folderName = IMAPArgs::normalizeFolderName(IMAPArgs::unwrap(nameArg));
      coreutils::ZString userNameZ(session.userName);

      std::string mailboxPath = server.mailFileSystem.getMailBoxPath(userNameZ).str();
      std::vector<std::string> allFolders;
      for (coreutils::MString &folder : server.mailFileSystem.listFolders(userNameZ))
         allFolders.push_back(folder.str());
      std::vector<std::string> subscriptions = readSubscriptions(mailboxPath, allFolders);

      subscriptions.erase(std::remove(subscriptions.begin(), subscriptions.end(), folderName), subscriptions.end());
      writeSubscriptions(mailboxPath, subscriptions);

      session.out << session.tag << " OK UNSUBSCRIBE completed" << CRLF;
      return 1;
   }

}