import fetch from "node-fetch";

/**
 * TYPES
 */
import { ICommandStatusMessage, IConfigAuth, IToken } from "./authTypes";

/**
 * CONST
 */
const BASE_URL: string = "http://v2-sbjck1.rxnova.com/api/v2_3/";
const POST: string = "POST";

/**
 * CLASS
 */
export default class AuthEtouches {
  public username: string;
  public password: string;
  public accessToken: IToken;

  constructor({ username, password }: { username: string; password: string }) {
    this.username = username;
    this.password = password;
  }

  public getAuthURL(): string {
    const URL: string = `${BASE_URL}security/login/${this.username}/apikey`;
    return URL;
  }

  public async authorized(): Promise<string | null> {
    const URL: string = this.getAuthURL();
    const configRequest: IConfigAuth = {
      headers: {
        "Accept": "application/json",
        "x-Verbosity": "Verbose",
      },
    };

    const res = await fetch(URL, {
      method: POST,
      ...configRequest,
      body: JSON.stringify(this.password),
    });
    const accessToken = await res.json<IToken>();

    if (!accessToken.Data || !accessToken.Result) {
      const error: ICommandStatusMessage = accessToken.CommandStatusMessages[0];
      throw new Error(`${error.__type}: ${error.Message}`);
    }
    this.accessToken = accessToken;
    return this.accessToken.Data;
  }

  // getter
  public getAccessToken(): string | null {
    return this.accessToken.Data;
  }
}