#!/usr/bin/env bash
# SPDX-License-Identifier: MIT AND MPL-2.0
# This is bit chaotic at best, per https://unix.stackexchange.com/a/116694.
# Maybe we should aggressively detect more desktop environments, even non-DEs
# as per https://askubuntu.com/a/227669.

set -e
if [[ $DEBUG != "" ]]; then
  set -x
fi

GPG_TTY=$(tty)

error() {
  echo "error: $*"
}

warn() {
  echo "warn: $*"
}

detect_env() {
  if [ "$XDG_CURRENT_DESKTOP" = "" ]
  then
    desktop=$(echo "$XDG_DATA_DIRS" | sed 's/.*\(xfce\|kde\|gnome\).*/\1/')
  else
    desktop=$XDG_CURRENT_DESKTOP
  fi
  desktop=${desktop,,}  # convert to lower case
}

path_detection() {
  if [[ $desktop == "kde" ]]; then
    if command -v pinentry-qt >> /dev/null; then
      target_bin=pinentry-qt
    else
      error "pinentry-qt isn't installed on your system or not found on PATH"
      exit 1
    fi
  else
     warn "environment can't be detected ($desktop), using pinentry-curses"
     if command -v pinentry-curses >> /dev/null; then
       target_bin=pinentry-curses
     else
       error "pinentry-curses isn't installed on your system or not found on PATH"
       exit 1
     fi
  fi
}

detect_env
path_detection
export GPG_TTY
exec $target_bin "$@"