#!/usr/bin/env bash
set -euo pipefail

# Optional dmenu theming
# shellcheck disable=SC1090
[[ -r "${HOME}/.local/bin/dmenu-theming" ]] && . "${HOME}/.local/bin/dmenu-theming"

DMENU="${DMENU:-dmenu}"
PROMPT="${PROMPT:-Config: }"
EDITOR_CMD="${EDITOR_CMD:-vim}"
TERM_CMD="${TERM_CMD:-st -e}"   # change to "alacritty -e" / "kitty -e" / "wezterm start --" if needed
INDEX="${INDEX:-${HOME}/.config/dmenu/configs.tsv}"

[[ -r "$INDEX" ]] || { printf "ERROR: cannot read %s\n" "$INDEX" >&2; exit 1; }

# Build menu: show label, keep path as hidden second field
menu="$(
  awk -F'\t' 'NF>=2 {print $1 "\t" $2}' "$INDEX"
)"

picked="$(
  printf "%s\n" "$menu" \
  | ${DMENU} -i -l 20 -p "$PROMPT" ${lines:-} ${colors:-} ${font:-} \
  || true
)"
[[ -n "$picked" ]] || exit 0

path="$(printf "%s" "$picked" | awk -F'\t' '{print $2}')"
[[ -n "$path" ]] || exit 0

# Expand ~ manually (awk won’t expand it)
path="${path/#\~/$HOME}"

# If path is relative, treat it as relative to $HOME
case "$path" in
  /*) : ;;
  *)  path="${HOME}/${path}" ;;
esac

# Decide whether we need sudo (simple heuristic: /etc, /usr, /var, /run)
needs_sudo=0
case "$path" in
  /etc/*|/usr/*|/var/*|/run/*) needs_sudo=1 ;;
esac

# Open in terminal editor (no eval)
if [[ $needs_sudo -eq 1 ]]; then
  exec ${TERM_CMD} sudo -E "$EDITOR_CMD" "$path"
else
  exec ${TERM_CMD} "$EDITOR_CMD" "$path"
fi