web/apps/scandic-web/services/dataCache/MemoryCache/InMemoryCache/cacheOrGet.ts

import { type CacheTime, type DataCache } from "@/services/dataCache/Cache"
import { cacheLogger } from "@/services/dataCache/logger"

import { get } from "./get"
import { set } from "./set"

export const cacheOrGet: DataCache["cacheOrGet"] = async <T>(
  key: string | string[],
  callback: (overrideTTL?: (cacheTime: CacheTime) => void) => Promise<T>,
  ttl: CacheTime
): Promise<T> => {
  if (Array.isArray(key)) {
    key = key.join("-")
  }

  let realTTL = ttl
  const overrideTTL = function (cacheTime: CacheTime) {
    realTTL = cacheTime
  }

  const cached = await get(key)

  if (cached) {
    return cached as T
  }

  cacheLogger.debug(`Miss for key '${key}'`)

  try {
    const data = await callback(overrideTTL)
    await set(key, data, realTTL)

    return data
  } catch (e) {
    cacheLogger.error(
      `Error while fetching data for key '${key}', avoid caching`,
      e
    )
    throw e
  }
}