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

BASE_DOMAIN="${NETMAKER_BASE_DOMAIN:-nm.101-96-214-81.nip.io}"
ENV_FILE="${NETMAKER_ENV_FILE:-/root/netmaker/netmaker.env}"
NETWORK_ID="${NETMAKER_NETWORK_ID:-homevpn}"
NETWORK_RANGE="${NETMAKER_NETWORK_RANGE:-100.88.0.0/24}"

if [[ ! -f "${ENV_FILE}" ]]; then
  echo "[AbyssInfo] Missing ${ENV_FILE}" >&2
  exit 1
fi

set -a
# shellcheck source=/dev/null
. "${ENV_FILE}"
set +a

if [[ -z "${MASTER_KEY:-}" ]]; then
  echo "[AbyssInfo] MASTER_KEY is missing in ${ENV_FILE}" >&2
  exit 1
fi

api_url="https://api.${BASE_DOMAIN}"
auth_header="Authorization: Bearer ${MASTER_KEY}"

echo "[AbyssInfo] Checking Netmaker network: ${NETWORK_ID}"
networks_json="$(curl -ksS -H "${auth_header}" "${api_url}/api/networks")"
if echo "${networks_json}" | jq -e --arg id "${NETWORK_ID}" '.[]? | select(.netid == $id)' >/dev/null; then
  echo "[AbyssInfo] Network already exists: ${NETWORK_ID}"
else
  echo "[AbyssInfo] Creating Netmaker network: ${NETWORK_ID} (${NETWORK_RANGE})"
  payload="$(jq -n \
    --arg netid "${NETWORK_ID}" \
    --arg addressrange "${NETWORK_RANGE}" \
    '{
      netid: $netid,
      addressrange: $addressrange,
      defaultacl: "yes",
      defaultmtu: 1420,
      defaultlistenport: 51821,
      defaultkeepalive: 20,
      auto_join: true
    }')"

  response_file="$(mktemp)"
  code="$(curl -ksS -o "${response_file}" -w "%{http_code}" \
    -X POST "${api_url}/api/networks" \
    -H "${auth_header}" \
    -H "Content-Type: application/json" \
    --data "${payload}" || true)"

  if [[ "${code}" -lt 200 || "${code}" -ge 300 ]]; then
    echo "[AbyssInfo] Failed to create network. HTTP ${code}" >&2
    head -c 500 "${response_file}" >&2 || true
    echo >&2
    rm -f "${response_file}"
    exit 1
  fi
  rm -f "${response_file}"
fi

echo "[AbyssInfo] Current networks:"
curl -ksS -H "${auth_header}" "${api_url}/api/networks" \
  | jq -r '.[] | "- \(.netid) \(.addressrange // "")"'

echo "[AbyssInfo] Backend config:"
echo "NETMAKER_BASE_URL=${api_url}"
echo "NETMAKER_NETWORK_ID=${NETWORK_ID}"