#!/usr/bin/env bash
# VPS Installer bootstrap — downloads the latest installer and launches it.
#
# One command (defaults: HTTPS on 0.0.0.0:8088, login "admin", auto-generated
# password printed in the console):
#   curl -sSL https://vps.myidb.ru/files/bootstrap.sh | bash
#
# Override any of them:
#   curl -sSL https://vps.myidb.ru/files/bootstrap.sh | bash -s -- \
#     --ip 0.0.0.0 --port 8443 --login admin --password S3cur3Pass [--no-tls]
set -euo pipefail

INSTALL_DIR="/opt/vps-installer"
BASE_URL="${INSTALLER_BASE_URL:-https://vps.myidb.ru/files}"
ARGS=() # passed through to the installer

while [[ $# -gt 0 ]]; do
  case "$1" in
    --dir)                            INSTALL_DIR="$2"; shift 2 ;;
    --no-tls)                         ARGS+=("--no-tls"); shift ;;
    --ip|--port|--login|--password)   ARGS+=("$1" "$2"); shift 2 ;;
    -h|--help)
      echo "Usage: bootstrap.sh [--ip IP] [--port N] [--login L] [--password P] [--no-tls] [--dir DIR]"
      echo "No options: HTTPS on 0.0.0.0:8088, login admin, auto-generated password (printed below)."
      exit 0 ;;
    *) ARGS+=("$1"); shift ;;
  esac
done

ARCH="$(uname -m)"
case "$ARCH" in
  x86_64)        BINARY_ARCH="amd64" ;;
  aarch64|arm64) BINARY_ARCH="arm64" ;;
  *) echo "ERROR: unsupported architecture: $ARCH" >&2; exit 1 ;;
esac

DOWNLOAD_URL="${BASE_URL%/}/vps-installer-linux-${BINARY_ARCH}"
mkdir -p "$INSTALL_DIR"
BINARY_PATH="$INSTALL_DIR/vps-installer"

echo "==> Downloading vps-installer ($BINARY_ARCH) ..."
if command -v curl >/dev/null 2>&1; then
  curl -fsSL "$DOWNLOAD_URL" -o "$BINARY_PATH"
elif command -v wget >/dev/null 2>&1; then
  wget -qO "$BINARY_PATH" "$DOWNLOAD_URL"
else
  echo "ERROR: neither curl nor wget is available." >&2; exit 1
fi
chmod +x "$BINARY_PATH"

# The installer needs root (writes /etc/*, systemd units, firewall). Use sudo only
# when a terminal is available for a possible password prompt.
RUN=("$BINARY_PATH")
if [ "$(id -u)" -ne 0 ]; then
  if command -v sudo >/dev/null 2>&1 && [ -t 1 ]; then
    RUN=(sudo "$BINARY_PATH")
  else
    echo "NOTE: run as root (or via sudo) — the installer configures system services." >&2
  fi
fi

echo "==> Starting VPS Installer (Ctrl+C to stop)..."
if [ ${#ARGS[@]} -gt 0 ]; then
  exec "${RUN[@]}" "${ARGS[@]}"
else
  exec "${RUN[@]}"
fi