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

ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
INSTALL_BROWSER=1
RUN_VALIDATION=0

usage() {
  cat <<'EOF'
Usage: bash ./scripts/bootstrap_mac.sh [--skip-browser] [--run-validation]

Bootstrap QuantumLearning on a Mac using only repo-local runtime paths.

Options:
  --skip-browser     Skip installing the project-local Playwright Chromium runtime.
  --run-validation   Run the full validation suite after bootstrapping.
  -h, --help         Show this help.
EOF
}

while [[ $# -gt 0 ]]; do
  case "$1" in
    --skip-browser)
      INSTALL_BROWSER=0
      shift
      ;;
    --run-validation)
      RUN_VALIDATION=1
      shift
      ;;
    -h|--help)
      usage
      exit 0
      ;;
    *)
      echo "Unknown option: $1" >&2
      usage >&2
      exit 1
      ;;
  esac
done

resolve_python() {
  if command -v python3.12 >/dev/null 2>&1; then
    echo "python3.12"
    return 0
  fi

  if command -v python3 >/dev/null 2>&1; then
    if python3 -c 'import sys; raise SystemExit(0 if sys.version_info[:2] == (3, 12) else 1)'; then
      echo "python3"
      return 0
    fi
  fi

  return 1
}

if ! PYTHON_BIN="$(resolve_python)"; then
  cat <<'EOF' >&2
Python 3.12 is required.

Install it first, then re-run this script.
Typical options on macOS:
  brew install python@3.12
  or install Python 3.12 from python.org
EOF
  exit 1
fi

cd "$ROOT_DIR"

if [[ ! -d "$ROOT_DIR/.venv" ]]; then
  "$PYTHON_BIN" -m venv "$ROOT_DIR/.venv"
fi

source "$ROOT_DIR/.venv/bin/activate"
python -m pip install --upgrade pip
python -m pip install -e ".[dev]"

if [[ "$INSTALL_BROWSER" -eq 1 ]]; then
  PLAYWRIGHT_BROWSERS_PATH="$ROOT_DIR/.playwright-browsers" python -m playwright install chromium
fi

if [[ "$RUN_VALIDATION" -eq 1 ]]; then
  bash "$ROOT_DIR/scripts/run_validation.sh"
fi

cat <<EOF
Bootstrap complete.

Next steps:
  bash ./scripts/app.sh status
  bash ./scripts/app.sh validate --quick
  bash ./scripts/app.sh start --open
EOF