# zfgoto bname
# Go to bookmark bname, a location on a remote FTP host.  Unless
# this was the last session or is for anonymous FTP, prompt for
# the user's password.

emulate -L zsh
setopt extendedglob

# Set ZFTP_BMFILE if not already set.  This should agree with
# the corresponding line in zfmark.
: ${ZFTP_BMFILE:=${ZFDOTDIR:-$HOME}/.zfbkmarks}

typeset -A bkmarks
local line ncftp opt optlist

while [[ $1 == -* ]]; do
  if [[ $1 == - || $1 == -- ]]; then
    shift;
    break;
  fi
  optlist=${1#-}
  for (( i = 1; i <= $#optlist; i++)); do
    opt=$optlist[$i]
    case $opt in
      n) ncftp=1
	 ;;
      *) print option $opt not recognised >&2
	 return 1
	 ;;
    esac
  done
  shift
done

if (( $# != 1 )); then
  print "Usage: zfgoto bookmark" >&2
  return 1
fi

if [[ -n $ncftp && -f ~/.ncftp/bookmarks ]]; then
  local oldifs=$IFS
  IFS=,
  while read -rA line; do
    bkmarks[$line[1]]="${line[3]:-anonymous}@${line[2]}:${line[6]}"
  done < ~/.ncftp/bookmarks
  IFS=$oldifs
elif [[ -f $ZFTP_BMFILE ]]; then
  # read in file:  could optimise this by recording last read time
  # comparing with file
  while read -r line; do
    # ignore blank and comment lines
    [[ $line = [[:blank:]]# || $line = [[:blank:]]#'#'* ]] && continue
    bkmarks[${line%% *}]="${line#* }"
  done <$ZFTP_BMFILE
fi

line=${bkmarks[$1]}

if [[ -z $line ]]; then
  print "Bookmark \`$1' not found" >&2
  return 1
fi

local user host dir
user=${line%%@*}
line=${line#*@}
host=${line%%:*}
dir=${line#*:}

if [[ $user = ftp || $user = anonymous ]]; then
  # Anonymous ftp, so we don't need password etc.
  zfanon $host && [[ -n $dir ]] && zfcd $dir
elif [[ $zflastsession = ${host}:* && $user = $zflastuser ]]; then
  # This was the last session, so assume it's still setup in the
  # open parameters
  zfopen && [[ -n $dir ]] && zfcd $dir
else
  # Last try: see if it's in the parameters.
  local params
  params=($(zftp params))
  if [[ $host = $params[1] && $user = $params[2] ]]; then
    zfopen && [[ -n $dir ]] && zfcd $dir
  else
    zfopen $host $user && [[ -n $dir ]] && zfcd $dir
  fi
fi