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

MSG=""
BRANCH="$(git rev-parse --abbrev-ref HEAD 2>/dev/null || echo main)"
REMOTE="${REMOTE:-origin}"

usage(){ echo "Usage: $0 -m \"commit message\" [-b branch]"; exit 1; }

while getopts ":m:b:" opt; do
  case "$opt" in
    m) MSG="$OPTARG" ;;
    b) BRANCH="$OPTARG" ;;
    *) usage ;;
  esac
done
shift $((OPTIND-1))

[[ -n "$MSG" ]] || usage
git rev-parse --git-dir >/dev/null 2>&1 || { echo "[x] kein Git-Repo"; exit 1; }

echo "[i] Add/Commit → $BRANCH"
git add -A
# Kein Commit, wenn nichts geändert ist
if ! git diff --cached --quiet; then
  git commit -m "$MSG"
else
  echo "[i] Nichts zu committen (Index leer) – pushe nur."
fi

echo "[i] Push → $REMOTE/$BRANCH"
git push "$REMOTE" "$BRANCH"
echo "[✓] Done."