#!/usr/bin/env bash
# Product version (MAJOR.MINOR) из EventHubSpec/VERSION.
# Fallback: локальный VERSION (офлайн / без токена).
set -euo pipefail

BASE="${GITEA_BASE_URL:-https://git.sabilin.com}"
TOKEN="${GITEA_TOKEN:-${REGISTRY_PASSWORD:-}}"
REF="${PRODUCT_VERSION_REF:-master}"
FALLBACK_FILE="${PRODUCT_VERSION_FILE:-VERSION}"

fetch_spec() {
  local url="${BASE}/api/v1/repos/EventHub/EventHubSpec/raw/VERSION?ref=${REF}"
  if [[ -n "${TOKEN}" ]]; then
    curl -fsSL -H "Authorization: token ${TOKEN}" "${url}"
  else
    curl -fsSL "${url}"
  fi
}

ver=""
if raw="$(fetch_spec 2>/dev/null)"; then
  ver="$(printf '%s' "${raw}" | grep -Eo '[0-9]+\.[0-9]+' | head -1 || true)"
fi

if [[ -z "${ver}" && -f "${FALLBACK_FILE}" ]]; then
  echo "WARN: EventHubSpec/VERSION недоступен — fallback ${FALLBACK_FILE}" >&2
  ver="$(grep -Eo '[0-9]+\.[0-9]+' "${FALLBACK_FILE}" | head -1 || true)"
fi

if [[ -z "${ver}" ]]; then
  echo "ERROR: не удалось получить product version (Spec + local VERSION)" >&2
  exit 1
fi

if ! [[ "${ver}" =~ ^[0-9]+\.[0-9]+$ ]]; then
  echo "ERROR: некорректный VERSION '${ver}' (ожидается MAJOR.MINOR)" >&2
  exit 1
fi

printf '%s\n' "${ver}"