module.exports = {
  "endpoint": "/graphql",
  "shadowCRUD": true,
  "playgroundAlways": false,
  "depthLimit": 7,
  "amountLimit": 200,
  "shareEnabled": false,
  federation: false,
  apolloServer: {
    tracing: 'production' !== strapi.config.environment ? true : false,
    // persistedQueries: { ttl: 10 * MAX_AGE }, // we set this to be a factor of 10, somewhat arbitrary
    // cacheControl: { defaultMaxAge: MAX_AGE },
    plugins: [
      apolloServerPluginResponseCache({
        shouldReadFromCache,
        shouldWriteToCache,
        extraCacheKeyData,
        sessionId,
      }),
      injectCacheControl()
    ]
  },
  redisCacheClient: cache
}

// does not work all the time
async function shouldReadFromCache(requestContext) {
  if ('IntrospectionQuery' == requestContext.operationName) return false;// graphql ping ignore
  // return true;
  if (cacheQueryNames.includes(requestContext.operationName)) {
    const expired = await cacheExpired(requestContext);
    console.debug("shouldReadFromCache:", requestContext.operationName, 'expired?', expired);
    return !expired;
  }
  console.debug("readCache nocache:", requestContext.operationName);
  return false;
}