#include "__IMAP_LSUB.h"
#include "__IMAP_LIST.h"
#include "__IMAP_SUBSCRIBE.h"
#include "IMAPArgs.h"
#include "IMAPServer.h"

namespace mail {

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

      IMAPArgs::nextArgument(request); // reference name - unused
      coreutils::ZString patArg = IMAPArgs::nextArgument(request);
      std::string pattern = IMAPArgs::unwrap(patArg);

      if (pattern.empty()) {
         session.out << "* LSUB (\\Noselect) \"/\" \"\"" << CRLF;
         session.out << session.tag << " OK LSUB completed" << CRLF;
         return 1;
      }

      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);

      for (const std::string &name : subscriptions)
         if (imapListPatternMatch(pattern, name))
            session.out << "* LSUB (\\HasNoChildren) \"/\" \"" << name << "\"" << CRLF;

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

}