#! perl

use POSIX ();

# miscellaneous commands

sub rename_to($$$) {
   my ($ob, $from, $to) = @_;

   $to =~ /^[a-zA-Z0-9.,=#\/%$!^ ]*$/
      or return $ob->message ("rename: name must consist only of letters, digits, spaces and a few other things.");

   127 >= length $to
      or return $ob->message ("rename: new name must be <= 127 characters.");

   my $item;

   if (length $from) {
      $item = $ob->find_best_object_match ($from)
         or return $ob->message ("rename: could not find a matching item to rename.");
   } else {
      $item = $ob->find_marked_object ()
         or return $ob->message ("rename: no from name and no marked item found to rename.");
   }

  $item->custom_name (length $to ? $to : undef);

  if (length $to) {
     $item->custom_name ($to);
     $ob->message ("Your " . $item->base_name . " will now be called $to.");
  } else {
     $item->custom_name (undef);
     $ob->message ("You stop calling your " . $item->base_name . " with weird names.");
  }

  $ob->esrv_update_item (cf::UPD_NAME, $item);

  1
}

sub ext::schmorp_irc::users; # HACK: TODO: replace by signal

sub who_listing(;$) {
   my ($privileged) = @_;

   my ($numwiz, $numafk) = (0, 0);
   my @pl;

   foreach my $pl (cf::player::list) {
      my $ns = $pl->ns or next;
      my $ob = $pl->ob;

      next unless $ob->map
               && ($privileged || !$pl->hidden);

      $numwiz++ if $ob->flag (cf::FLAG_WIZ);
      $numafk++ if $ns->afk;

      push @pl, $pl;
   }

   (
      "Total Players in The World. (" . (scalar @pl) . ") -- WIZ($numwiz) AFK($numafk) BOT(0)",
      (
         map {
            my ($pl, $ob, $ns) = ($_, $_->ob, $_->ns);
    
            "* " . $ob->name . "/" . $ob->level . " " . (length $pl->own_title ? $pl->own_title : "the " . $pl->title)
            . ($pl->peaceful ? " [peaceful]" : " [HOSTILE]")
            . ($ns->afk ? " [AFK]" : "")
            . ($ob->flag (cf::FLAG_WIZ) ? " [WIZ]" : "")
            . " [" . $pl->ns->version . "]"
            . " [" . ($pl->peaceful || $privileged ? $ob->map->visible_name : $ob->region->name) . "]"
            . (sprintf " [rtt %.3fs]", $pl->ns->rtt * 1e-6)
            . ($privileged ? " " . $pl->ns->host : "")
         } sort { (lc $a->ob->name) cmp (lc $b->ob->name) } @pl
      ),
      eval { "* IRC: " . join ", ", ext::schmorp_irc::users },
   )
}

cf::register_command who => sub {
   my ($ob, $arg) = @_;

   $ob->speed_left ($ob->speed_left - 0.25);

   $ob->reply (undef, (join "\n", who_listing $ob->may ("extended_who")), cf::NDI_UNIQUE | cf::NDI_DK_ORANGE);

   1
};

cf::register_command afk => sub {
   my ($ob, $arg) = @_;

   $ob->contr->ns->afk ($ob->contr->ns->afk ? 0 : 1);
   $ob->reply (undef, $ob->contr->ns->afk ? "You are now AFK" : "You are no longer AFK");
};

cf::register_command brace => sub {
   my ($ob, $arg) = @_;

   $ob->contr->braced ($ob->contr->braced ? 0 : 1);
   $ob->reply (undef, $ob->contr->braced ? "You are braced." : "Not braced.");
};

# XXX: This has a bug. After one sets his wimpy level to 0 and resets it to
# some other level (which may also be 0), this does not get echoed,
# but it does get set.
cf::register_command wimpy => sub {
   my ($ob, $arg) = @_;

   my $wimpy = $ob->run_away;
   return $ob->reply (undef, "Your current wimpy level is $wimpy.")
      if $arg eq "";

   return $ob->run_away ($arg) && $ob->reply (undef, "Your new wimpy level is $arg.")
      if $arg =~ /^\d+$/ and $arg <= 100;

   $ob->reply (undef, "Incorrect parameters for wimpy: $arg");
};

cf::register_command peaceful => sub {
   my ($ob, $arg) = @_;

   $ob->reply (undef, "You cannot change your peaceful setting with this command."
                     ." Please speak to the priest in the temple of Gorokh"
                     ." if you want to become hostile or in temple of Valriel"
                     ." if you want to become peaceful again.");

   #$ob->contr->peaceful ($ob->contr->peaceful ? 0 : 1);
   #$ob->reply (undef, $ob->contr->peaceful ? "You will attack other players." : "You will not attack other players.");
};


cf::register_command rename => sub {
   my ($ob, $arg) = @_;

   $ob->speed_left ($ob->speed_left - 0.25);

   if ($arg =~ /^\s* (?: <([^>]+)> \s+)? to \s+ <([^>]*)> \s*$/x) {
      # compatibility syntax
      rename_to $ob, $1, $2;
   } elsif ($arg =~ /
               ^\s*
               (?:
                  (?: "((?:[^"]+|\\.)*)" | (\S+) )
               \s+)?
               to \s+
               (?: "((?:[^"]+|\\.)*)" | (\S+) )
               \s*$
            /x) {
      # does not unquote $1 or $3
      rename_to $ob, $2||$1, $4||$3;
   } else {
      $ob->reply (undef, 'Syntax error. Rename usage: rename ["oldname"] to "newname"');
   }

   1
};

cf::register_command uptime => sub {
   my ($ob, $arg) = @_;

   my $startup = POSIX::strftime "%Y-%m-%d %H:%M:%S %Z", localtime $cf::UPTIME;
   my $runtime = sprintf "%.1f", (time - $cf::UPTIME) / 86400;
   $ob->reply (undef, "server started $startup, uptime ${runtime}\d");

   1
};

my %IN_MEMORY = (
   cf::MAP_IN_MEMORY => "I",
   cf::MAP_SWAPPED   => "S",
   cf::MAP_LOADING   => "L",
);

cf::register_command maps => sub {
   my ($ob, $arg) = @_;

   no re 'eval'; $arg = qr<$arg>;

   my $format = "%2s %1s %3s %5s %.60s\n";

   $ob->reply (undef, (sprintf $format, "Pl", "I", "Svd", "Reset", "Name"), cf::NDI_BLACK | cf::NDI_UNIQUE);

   for (sort keys %cf::MAP) {
      my $map = $cf::MAP{$_}
         or next;

      next unless $map->path =~ $arg;
      next if $map->{deny_list};

      my $svd = int $cf::RUNTIME - $map->{last_save};
      $svd = "++" if $svd > 99;

      $ob->reply (undef,
                  (sprintf $format,
                   (scalar $map->players), 
                   $IN_MEMORY{$map->in_memory} || "?",
                   $svd,
                   (int $map->reset_at - $cf::RUNTIME),
                   $map->visible_name),
                  cf::NDI_BLACK | cf::NDI_UNIQUE);
   }

   1
};