#!/usr/bin/env bash
# 00-preflight — verify we can proceed at all.

step_name="preflight"
step_desc="verify distro, network, privileges"
step_run="run_preflight"

run_preflight() {
  log "preflight checks"

  if [[ "$DISTRO" == "unknown" ]]; then
    err "unsupported distro (could not read ID/ID_LIKE from /etc/os-release)"
    err "bootstrap supports debian/ubuntu and arch only."
    exit 1
  fi

  if (( EUID == 0 )); then
    SUDO=""
    export SUDO
  else
    SUDO="sudo"
    export SUDO
    if ! sudo -n true 2>/dev/null; then
      warn "not root and passwordless sudo unavailable — sudo will prompt per-use"
    fi
  fi

  if command -v ping >/dev/null 2>&1 && ping -c1 -W2 8.8.8.8 >/dev/null 2>&1; then
    :
  elif curl -fsS --max-time 3 https://g.mk.fo >/dev/null 2>&1; then
    :
  else
    err "no outbound network — cannot install anything"
    exit 1
  fi

  ok "distro=$DISTRO arch=$ARCH user=$USER sudo=${SUDO:-root}"
}