#!/usr/bin/env bash
# Single entry point for all git operations in this skill. Designed so
# there is never a reason to use `cd` or shell chaining (&&, ;, |) to run
# git commands across different repos in one session.
#
# Usage: git_cmd.sh <subcommand> [--repo <name>] [-- <git-args...>]
#
# Examples:
#   git_cmd.sh status
#   git_cmd.sh log --repo homelab-notes -- --oneline -10
#   git_cmd.sh commit --repo homelab-notes -- -m "Update DNS notes"
#   git_cmd.sh push --repo homelab-notes -- origin main
#
# - <subcommand> must be one of the allowed subcommands in _lib.sh; anything
#   else is rejected before git is ever invoked.
# - --repo <name> is optional. If omitted, operates on the current working
#   directory (which must already be inside a git work tree) — this is what
#   replaces `cd <path> && git ...`, since Claude Code already sets the
#   working directory per project/session.
# - Everything after `--` is passed through to git as-is via argv (not
#   re-interpreted by a shell), so quoting/spaces in e.g. commit messages
#   are safe.

set -euo pipefail
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
# shellcheck source=_lib.sh
source "$SCRIPT_DIR/_lib.sh"

SUBCOMMAND="${1:-}"
if [ -z "$SUBCOMMAND" ]; then
  echo "Usage: git_cmd.sh <subcommand> [--repo <name>] [-- <git-args...>]" >&2
  echo "Allowed subcommands: ${ALLOWED_SUBCOMMANDS[*]}" >&2
  exit 1
fi
shift

if ! is_allowed_subcommand "$SUBCOMMAND"; then
  echo "Error: subcommand '$SUBCOMMAND' is not allowed." >&2
  echo "Allowed subcommands: ${ALLOWED_SUBCOMMANDS[*]}" >&2
  exit 1
fi

REPO_NAME=""
GIT_ARGS=()
while [ $# -gt 0 ]; do
  case "$1" in
    --repo)
      REPO_NAME="${2:-}"
      shift 2
      ;;
    --)
      shift
      GIT_ARGS=("$@")
      break
      ;;
    *)
      echo "Error: unexpected argument '$1'. Put git flags/args after '--'." >&2
      exit 1
      ;;
  esac
done

REPO_RAW="$(resolve_repo_path "$REPO_NAME")"
REPO="$(canonicalize_and_check_repo "$REPO_RAW")"

echo "== Repo: $REPO =="
echo "== Running: git $SUBCOMMAND ${GIT_ARGS[*]:-} =="
echo

if [ "${#GIT_ARGS[@]}" -eq 0 ]; then
  git -C "$REPO" "$SUBCOMMAND"
else
  git -C "$REPO" "$SUBCOMMAND" "${GIT_ARGS[@]}"
fi