import axios from "axios"
import { checkTokenExpired } from "../handler"
import * as config from "../config"

export class Credify {
  private static _instance: { [apiKey: string]: Credify } = {}
  accessToken: string

  /**
   * Instantiates Credify object
   * @param accessToken
   * */
  constructor(accessToken: string) {
    this.accessToken = accessToken
  }

  static async getInstance(apiKey: string) {
    if (
      Object.prototype.hasOwnProperty.call(this._instance, apiKey) &&
      !checkTokenExpired(this._instance[apiKey].accessToken)
    ) {
      return this._instance[apiKey]
    }

    const res = await axios(`${config.getBaseUrl()}/v1/token`, {
      method: "POST",
      headers: {
        "X-API-KEY": apiKey,
      },
    })
    const accessToken = res?.data?.data?.access_token || ""
    this._instance[apiKey] = new Credify(accessToken)

    return this._instance[apiKey]
  }
}