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

STATIC=""
OUTFILE=""
ARGS=()

while [ $# -gt 0 ]; do
  case "$1" in
    --static)
      STATIC="--static"
      shift
      ;;
    --out)
      if [ $# -lt 2 ]; then
        echo "Error: --out requires a file path" >&2
        exit 1
      fi
      OUTFILE="$2"
      shift 2
      ;;
    *)
      ARGS+=("$1")
      shift
      ;;
  esac
done

if [ ${#ARGS[@]} -lt 3 ]; then
  echo "Usage: difftool.sh [--static] [--out <file>] <git-project-dir> <main branch> <feature branch> [port]" >&2
  exit 1
fi

script_dir="$(cd "$(dirname "$0")" && pwd)"
node_args=("$script_dir/dist/server.cjs")
[ -n "$STATIC" ] && node_args+=("$STATIC")
[ -n "$OUTFILE" ] && node_args+=("--out" "$OUTFILE")
node_args+=("${ARGS[@]}")
exec node "${node_args[@]}"