import axios from 'axios'

/**
 * getAccessToken
 * @param params - AK: ApiKey; SK: secretKey
 * @returns access token
 * @see https://cloud.baidu.com/doc/WENXINWORKSHOP/s/Ilkkrb0i5
 */

interface AccessTokenInfo {
  access_token: string
  expires_in: number
  error?: string
  error_description?: string
}

const getAccessToken = async (params:{
  AK: string
  SK: string
}): Promise<AccessTokenInfo> => {
  const {
    AK: apiKey,
    SK: secretKey
  } = params
  const res = await axios.post<AccessTokenInfo> (
    `https://aip.baidubce.com/oauth/2.0/token?grant_type=client_credentials&client_id=${apiKey}&client_secret=${secretKey}`,
    {
      headers: {
        'Content-Type': 'application/json',
        'Accept': 'application/json'
      }
    }
  )
  return res?.data as AccessTokenInfo
}

export {
  getAccessToken
}