import { SecretsManager } from '@aws-sdk/client-secrets-manager'

import { Secret, Response } from './types'

// eslint-disable-next-line max-len
export function GetAWSSecret(awsSecretName: string, regionName?: string): Promise<any> {
  return new Promise((resolve, reject) => {
    let region = regionName
    if (!regionName) {
      region = 'ap-southeast-2'
    }
    const endpoint = `https://secretsmanager.${region}.amazonaws.com`
    const secretName = awsSecretName
    let secret: Secret
    const response: Response = {
      success: false,
    }

    // Create a Secrets Manager client
    const client = new SecretsManager({
      endpoint,
      region,
    })

    // eslint-disable-next-line no-promise-executor-return
    return client.getSecretValue({ SecretId: secretName }, (err:any, data:any) => {
      if (err) {
        if (err.code === 'ResourceNotFoundException') {
          console.error(`The requested secret ${secretName} was not found`)
        }
        return reject(err)
      }
      // Decrypted secret using the associated KMS CMK
      // Depending on whether the secret was a string or binary
      // one of these fields will be populated
      if (data.SecretString !== '') {
        secret = JSON.parse(data.SecretString)
        response.secret = secret
        response.user = secret.username
        response.database = secret.dbname
        resolve(secret)
      }
      delete response.username
      delete response.engine
      delete response.dbname
      delete response.dbInstanceIdentifier
      response.success = true
      return resolve(response)
    })
  })
}