#!/bin/bash
#
# Untrack the selected file from the git bare repo
#
# @params
# Globals
#   ${list_location}: location of where to list files, if empty, will list files from root
#   ${selected_files}: list of selected file to untrack

list_location=''

while getopts ":p:h" opt
do
  case "$opt" in
    p)
      list_location="${OPTARG}"
      ;;
    h)
      echo -e "Usage: fcr [-h] [-p PATH] ...\n"
      echo -e "Untrack the selected files from git bare repo"
      echo -e "Note: Although local files will be untracked without issue"
      echo -e "make sure to backup the untracked files in any other desktop"
      echo -e "because git will actually remove those files, after pulling the new changes"
      echo -e "copy the backup back to their original location\n"
      echo -e "optional arguments:"
      echo -e "  -h\t\tshow this help message and exit"
      echo -e '  -p PATH\tspecify the path to list files, by default, files will be listed from $HOME'
      exit 0
      ;;
    *)
      echo "Invalid option: ${OPTARG}" >&2
      exit 1
      ;;
  esac
done

if [[ -z "${list_location}" ]]; then
  cd
else
  cd "${list_location}"
fi

selected_files=$(/usr/bin/git --git-dir=$HOME/.cfg/ --work-tree=$HOME ls-files | \
  fzf --multi --exit-0 --preview "head -50 {}")

[[ -z "${selected_files}" ]] && exit 0

while IFS= read -r line; do
  /usr/bin/git --git-dir=$HOME/.cfg/ --work-tree=$HOME rm --cached "${line}"
done <<< "${selected_files}"