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

if [[ -z "${DEVELOPER_DIR:-}" && -d /Applications/Xcode.app/Contents/Developer ]]; then
  export DEVELOPER_DIR=/Applications/Xcode.app/Contents/Developer
fi

printf 'Developer dir: %s\n' "${DEVELOPER_DIR:-$(xcode-select -p 2>/dev/null || true)}"
xcodebuild -version
xcrun simctl list devices available
swift --version

if ! xcrun simctl list devices available | grep -Eq 'iPhone|iPad'; then
  printf 'No available iOS simulator devices found. Install the iOS platform from Xcode Settings > Components or run:\n' >&2
  printf '  DEVELOPER_DIR=/Applications/Xcode.app/Contents/Developer xcodebuild -downloadPlatform iOS\n' >&2
  exit 1
fi

printf 'iOS prerequisites are available.\n'