#!/bin/bash
VER=0.0.1
NOTESPATH="$HOME/.note-store"

CMD_INSERT(){
  path=$1
  mkdir -p -v "$NOTESPATH/$(dirname -- "$path")" &> /dev/null
  path="$NOTESPATH/$path.md"
  $EDITOR $path
}

CMD_HELP(){
  if [ ! -z $1 ]; then
    CMD_INSERT "$@"
  else
    echo
  cat <<-_EOF
Usage:
  $PROGRAM init
      Initialize new note storage.
  $PROGRAM [ls]
      List notes.
  $PROGRAM [edit] note-name
      Insert a new note or edit an existing note using editor.
  $PROGRAM help
      Show this text.
  $PROGRAM version
      Show version information.
_EOF
  fi
  exit 0
}

CMD_INIT(){
  test -d $NOTESPATH && echo "Note Store already exist" && exit 0 ||
  mkdir $NOTESPATH &> /dev/null
  echo "New note storage creted to: $NOTESPATH"
  exit 0
}

CMD_SHOWTREE(){
  if [ ! -z $1 ]; then
    glow -p $NOTESPATH/$1.md
  else
    echo "Note Store"
    tree -N -C -l --noreport $NOTESPATH | tail -n +2 |\
    sed -E 's/\.md(\x1B\[[0-9]+m)?( ->|$)/\1\2/g'
  fi
  exit 0
}

CMD_FIND(){
  [[ $# -eq 0 ]] && die "Usage: $PROGRAM $COMMAND note-names..."
  IFS="," eval 'echo "Search Terms: $*"'
  local terms="*$(printf '%s*|*' "$@")"
  tree -N -C -l --noreport -P "${terms%|*}" --prune --matchdirs --ignore-case "$NOTESPATH" |\
  tail -n +2 | sed -E 's/\.md(\x1B\[[0-9]+m)?( ->|$)/\1\2/g'
}

CMD_GREP(){
  echo "add to-do grep"
}

CMD_COPY_MOVE() {
  move=1
  [[ $1 == "copy" ]] && move=0
  shift
  old_path="$NOTESPATH/${1%/}"
  old_dir="$old_path"
  new_path="$NOTESPATH/$2"
  if [[ $move -eq 1 ]]; then
    mv -v "$old_path.md" "$new_path.md" || exit 1
  else
    cp -r -v "$old_path.md" "$new_path.md" || exit 1
  fi
}

CMD_SHOWVERSION(){
  echo $PROGRAM version: $VER
}

if [[ ! $1 = init ]]; then
  test -d $NOTESPATH || CMD_HELP
fi
if [ -z $1 ]; then
  CMD_SHOWTREE
fi

PROGRAM="${0##*/}"
COMMAND="$1"

case "$1" in
  init) shift;                  CMD_INIT "$@" ;;
  help|--help) shift;           CMD_HELP "$@" ;;
  show|ls|list) shift;          CMD_SHOWTREE "$@" ;;
  find|search) shift;           CMD_FIND "$@" ;;
  grep) shift;                  CMD_GREP "$@" ;;
  copy|cp) shift;               CMD_COPY_MOVE "copy" "$@" ;;
  rename|mv) shift;             CMD_COPY_MOVE "move" "$@" ;;
  edit) shift;                  CMD_INSERT "$@" ;;
  version|-v)                   CMD_SHOWVERSION ;;
  *)                            CMD_HELP "$@" ;;
esac

find $NOTESPATH* -maxdepth 0 -type f ! -name *.md -delete &> /dev/null

exit 0