import { Collection, Db, MongoClient } from 'mongodb'
import getConfig from 'next/config'
import { Resolvable } from '../utils/Resolvable'
import { GroupData, InsertMeta } from './groups'
import { logger } from '../utils/logger'

const {
  serverRuntimeConfig: { MONGO_URL, MONGO_USER, MONGO_PASS, MONGO_DB }
} = getConfig()

async function getDatabase() {
  const url = `mongodb://${MONGO_USER ? `${MONGO_USER}:${MONGO_PASS ?? ''}@` : ''}${MONGO_URL}`
  const client = new MongoClient(url)
  await client.connect()
  logger.info('Connected successfully to server')
  return client.db(MONGO_DB) as unknown as Omit<Db, 'collection'> & {
    collection: (_: 'setups') => Collection<InsertMeta<GroupData>>
  }
}

export const database = new Resolvable(getDatabase)