#compdef wd

zstyle ':completion::complete:wd:*:descriptions' format '%B%d%b'
zstyle ':completion::complete:wd:*:commands' group-name commands
zstyle ':completion::complete:wd:*:warp_points' group-name warp_points
zstyle ':completion::complete:wd::' list-grouped

zmodload zsh/mapfile

function _wd() {
  local WD_CONFIG=${WD_CONFIG:-$HOME/.warprc}
  local ret=1

  local -a commands
  local -a warp_points

  warp_points=( "${(f)mapfile[$WD_CONFIG]//$HOME/~}" )

  typeset -A points
  while read -r line
  do
    arr=(${(s,:,)line})
    name=${arr[1]}
    target_path=${arr[2]}

    # replace ~ from path to fix completion (#17)
    target_path=${target_path/#\~/$HOME}

    points[$name]=$target_path
  done < $WD_CONFIG

  commands=(
    'add:Adds the current working directory to your warp points'
    'add!:Overwrites existing warp point'
    'export:Export warp points as static named directories'
    'rm:Removes the given warp point'
    'list:Outputs all stored warp points'
    'ls:Show files from given warp point'
    'path:Show path to given warp point'
    'show:Outputs all warp points that point to the current directory or shows a specific target directory for a point'
    'help:Show this extremely helpful text'
    'clean:Remove points warping to nonexistent directories'
    'clean!:Remove nonexistent directories without confirmation'
    '..:Go back to last directory'
  )

  _arguments -C \
    '1: :->first_arg' \
    '2: :->second_arg' && ret=0

  local target=$words[2]

  case $state in
    first_arg)
      _describe -t warp_points "Warp points" warp_points && ret=0
      _describe -t commands "Commands" commands && ret=0
      ;;
    second_arg)
      case $target in
        add\!|rm)
          _describe -t points "Warp points" warp_points && ret=0
          ;;
        add)
          _message 'Write the name of your warp point' && ret=0
          ;;
        show)
          _describe -t points "Warp points" warp_points && ret=0
          ;;
        ls)
          _describe -t points "Warp points" warp_points && ret=0
          ;;
        path)
          _describe -t points "Warp points" warp_points && ret=0
          ;;
        *)
          if [[ -v points[$target] ]]; then
            # complete sub directories from the warp point
            _path_files -W "(${points[$target]})" -/ && ret=0
          fi

          # don't complete anything if warp point is not valid
          ;;
      esac
      ;;
  esac

  return $ret
}

_wd "$@"

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