#!/bin/sh
set -eu

ROOT_DIR=$(CDPATH= cd -- "$(dirname -- "$0")/.." && pwd)
BUILD_DIR="$ROOT_DIR/build"
SOCK_PATH=${AMDUATD_SOCK:-"$ROOT_DIR/amduatd.sock"}
STORE_ROOT=${AMDUATD_ROOT:-"$ROOT_DIR/.amduat-asl"}

if [ ! -d "$BUILD_DIR" ]; then
  cmake -S "$ROOT_DIR" -B "$BUILD_DIR"
fi

cmake --build "$BUILD_DIR" -j

if [ -S "$SOCK_PATH" ]; then
  pid=
  if command -v lsof >/dev/null 2>&1; then
    pid=$(lsof -t -- "$SOCK_PATH" 2>/dev/null | head -n 1 || true)
  elif command -v fuser >/dev/null 2>&1; then
    pid=$(fuser "$SOCK_PATH" 2>/dev/null | awk '{print $1}' | head -n 1 || true)
  fi

  if [ -n "${pid:-}" ]; then
    kill "$pid" 2>/dev/null || true
    i=0
    while [ $i -lt 30 ] && kill -0 "$pid" 2>/dev/null; do
      i=$((i + 1))
      sleep 0.1
    done
  fi

  rm -f "$SOCK_PATH"
fi

exec "$BUILD_DIR/amduatd" --root "$STORE_ROOT" --sock "$SOCK_PATH"