#include "__ADMIN_ALIAS.h"

namespace mail {

   __ADMIN_ALIAS::__ADMIN_ALIAS(MailFileSystem &mailFileSystem) : mailFileSystem(mailFileSystem) {}

   int __ADMIN_ALIAS::processCommand(coreutils::ZString &request, core::TCPSession &session) {
      if (request.getList().size() < 2) {
         session.out << "Usage: alias add alias@domain target@domain[,target2@domain] | remove alias@domain | list domain" << "\r\n";
         return 1;
      }
      std::string verb = request[1].str();
      std::string error;

      if (verb == "add") {
         if (request.getList().size() < 4) {
            session.out << "Usage: alias add alias@domain target@domain[,target2@domain]" << "\r\n";
            return 1;
         }
         coreutils::ZString alias(request[2]);
         coreutils::ZString targets(request[3]);
         bool ok = mailFileSystem.createAlias(alias, targets, error);
         session.out << (ok ? "OK." : ("Failed: " + error)) << "\r\n";
      } else if (verb == "remove") {
         if (request.getList().size() < 3) {
            session.out << "Usage: alias remove alias@domain" << "\r\n";
            return 1;
         }
         coreutils::ZString alias(request[2]);
         bool ok = mailFileSystem.removeAlias(alias, error);
         session.out << (ok ? "OK." : ("Failed: " + error)) << "\r\n";
      } else if (verb == "list") {
         if (request.getList().size() < 3) {
            session.out << "Usage: alias list domain" << "\r\n";
            return 1;
         }
         coreutils::ZString domain(request[2]);
         for (auto &alias : mailFileSystem.listAliases(domain)) {
            // listAliases() only returns the local part (the filename
            // on disk) - getAliasMailboxes() needs the full "user@domain"
            // form since it calls getMailBoxPath() itself to find that
            // same file.
            coreutils::MString fullAddress;
            fullAddress << alias << "@" << domain;
            std::string fullAddressStr = fullAddress.str();
            coreutils::ZString aliasAddress(fullAddressStr);
            session.out << alias << "@" << domain << " -> ";
            auto targets = mailFileSystem.getAliasMailboxes(aliasAddress);
            for (size_t i = 0; i < targets.size(); ++i)
               session.out << (i ? ", " : "") << targets[i];
            session.out << "\r\n";
         }
      } else {
         session.out << "Usage: alias add alias@domain target@domain[,target2@domain] | remove alias@domain | list domain" << "\r\n";
      }
      return 1;
   }

}