#!/bin/bash
set -euo pipefail

OPENBOOT_TAP="openbootdotdev/tap"

main() {
# When run via "curl | bash", stdin is the script content, not the terminal.
# Reopen stdin from /dev/tty so interactive prompts (read, sudo, Homebrew) work.
# IMPORTANT: This redirects stdin for the ENTIRE process. After main() returns,
# bash would try to read the next command from /dev/tty (not the pipe) and hang.
# Therefore main() MUST exit explicitly — never let it return to the caller.
if [[ ! -t 0 ]] && [[ -e /dev/tty ]]; then
  exec < /dev/tty || true
fi

echo ""
echo "OpenBoot Installer"
echo "=================="
echo "  Config: @fullstackjam/jam-s-packages"
echo ""

detect_os() {
  local os
  os=$(uname -s | tr '[:upper:]' '[:lower:]')
  case "$os" in
    darwin) echo "darwin" ;;
    *)      echo "Error: OpenBoot only supports macOS" >&2; exit 1 ;;
  esac
}

install_xcode_clt() {
  if xcode-select -p &>/dev/null; then
    return 0
  fi

  echo ""
  echo "Xcode Command Line Tools need to be installed."
  echo "A dialog will appear - please click 'Install' and enter your password."
  echo ""
  read -p "Press Enter to launch installer..." -r
  echo ""

  xcode-select --install 2>/dev/null || true

  echo "Waiting for installation to complete..."
  until xcode-select -p &>/dev/null; do
    sleep 5
  done
  echo "Xcode Command Line Tools installed!"
  echo ""
}

install_homebrew() {
  if command -v brew &>/dev/null; then
    return 0
  fi

  # brew may be installed but missing from PATH (fresh shell without ~/.zprofile sourced)
  local brew_bin=""
  if [[ -x "/opt/homebrew/bin/brew" ]]; then
    brew_bin="/opt/homebrew/bin/brew"
  elif [[ -x "/usr/local/bin/brew" ]]; then
    brew_bin="/usr/local/bin/brew"
  fi

  if [[ -n "$brew_bin" ]]; then
    eval "$("$brew_bin" shellenv)"
    return 0
  fi

  echo "Installing Homebrew..."
  echo ""

  /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"

  if [[ -x "/opt/homebrew/bin/brew" ]]; then
    eval "$(/opt/homebrew/bin/brew shellenv)"
  elif [[ -x "/usr/local/bin/brew" ]]; then
    eval "$(/usr/local/bin/brew shellenv)"
  fi

  echo ""
  echo "Homebrew installed!"
  echo ""
}

install_openboot() {
  if brew list ${OPENBOOT_TAP}/openboot &>/dev/null 2>&1; then
    echo "OpenBoot is already installed."
  else
    echo "Installing OpenBoot via Homebrew..."
    echo ""
    brew install ${OPENBOOT_TAP}/openboot
    echo ""
    echo "OpenBoot installed!"
  fi
}

detect_os

install_xcode_clt
install_homebrew
install_openboot

echo ""
echo "Starting OpenBoot setup with config: @fullstackjam/jam-s-packages"
echo ""
openboot install "fullstackjam/jam-s-packages" "$@"

echo ""
echo "Installation complete!"
exit 0
}

main "$@"