#!/usr/bin/env bash
#
# interactive menu to select file/commit to edit
#
# @params
# Globals
#   ${mydir}: current directory of the script
#   ${modified}: select modified file only
#   ${commit}: rename commit
#   ${selected_commit}: selected commit to edit
#   ${selected_files}: selected file to edit
# Arguments
#   -m: display modified file only
#   -c: edit commit using interactive rebase
#   -h: show helpe message and exit

set -e
set -f

mydir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
source "${mydir}"/../helper/set_variable.sh
source "${mydir}"/../helper/git_query.sh

function usage() {
  echo -e "Usage: dotbare fedit [-h] [-m] [-c] ...\n"
  echo -e "List all tracked dotfiles and edit"
  echo -e "also support commit message edit\n"
  echo -e "optional arguments:"
  echo -e "  -h\tshow this help message and exit"
  echo -e "  -m\tonly display modified file"
  echo -e "  -c\tedit commit using interactive rebase instead"
}

modified=''
commit=''

while getopts ":hmc" opt; do
  case "$opt" in
    m)
      modified='true'
      break
      ;;
    c)
      commit='true'
      break
      ;;
    h)
      usage
      exit 0
      ;;
    *)
      echo "Invalid option: ${OPTARG}" >&2
      usage
      exit 1
      ;;
  esac
done

if [[ -n "${commit}" ]]; then
  selected_commit=$(get_commit "Select a commit to rename")
  [[ -z "${selected_commit}" ]] && exit 1
  /usr/bin/git --git-dir="${DOTBARE_DIR}" --work-tree="${DOTBARE_TREE}" rebase -i "${selected_commit}"~
else
  if [[ -n "${modified}" ]]; then
    selected_files=$(get_modified_file "Select tracked files to edit")
  else
    selected_files=$(get_git_file "Select tracked files to edit")
  fi
  [[ -z "${selected_files}" ]] && exit 1
  # shellcheck disable=SC2086
  command "${EDITOR}" ${selected_files}
fi