import axios, { AxiosResponse } from "axios";
import Token from "../lib/token";

export class ApiClient {
  readonly url = "http://localhost:3000/api";
  public readonly token = new Token();

  async authenticatedGet(path: string) {
    const request_url = `${ this.url }${ path }`;
    let request: any;
    let options = this.authorizationHeaders();
    
    request = await this.makeGetRequest(request_url, options);

    if(request.response) {
      // Let's try with a refreshed token.
      this.token.refresh()
      options = this.authorizationHeaders();
      request = await this.makeGetRequest(request_url, options);
    }

    return request;
  }

  async get(path: string) {
    const request_url = `${ this.url }${ path }`;
    const response = await this.makeGetRequest(request_url);

    return response;
  }

  async post(path: string, data: FormData, headers?: object) {
    const request_url = `${ this.url }${ path }`;
    const response = await axios.post(request_url, data, headers);

    return response;
  }

  async put(path: string, data: FormData) {
    const request_url = `${ this.url }${ path }`;
    const options = this.authorizationHeaders();
    const response = await axios.put(request_url, data, options);

    return response;
  }

  async getProduct(id: string) {
    const request_url = `${ this.url }/products/${ id }`;
    const [product_response, product_reviews] = await Promise.all([
      this.makeGetRequest(request_url),
      this.makeGetRequest(`${ request_url }/reviews`)
    ]);

    return [product_response, product_reviews];
  }

  private async makeGetRequest(request_url: string, headers?: object) {
    try {
      const response = await axios.get(request_url, headers);

      return response
    } catch(error) {
      return error;
    }
  }

  private authorizationHeaders() {
    return {
      headers: {
        Authorization: this.token.get()
      }
    };
  }
}