package authorization.authorization_code.pkce;

import se.michaelthelin.spotify.SpotifyApi;
import se.michaelthelin.spotify.SpotifyHttpManager;
import se.michaelthelin.spotify.exceptions.SpotifyWebApiException;
import se.michaelthelin.spotify.model_objects.credentials.AuthorizationCodeCredentials;
import se.michaelthelin.spotify.requests.authorization.authorization_code.pkce.AuthorizationCodePKCERequest;
import org.apache.hc.core5.http.ParseException;

import java.io.IOException;
import java.net.URI;
import java.util.concurrent.CancellationException;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.CompletionException;

public class AuthorizationCodePKCEExample {
  private static final String clientId = "zyuxhfo1c51b5hxjk09x2uhv5n0svgd6g";
  private static final URI redirectUri = SpotifyHttpManager.makeUri("https://example.com/spotify-redirect");
  private static final String code = "c-oGaPdYJF3tu3oUZRUiBHWQvm4oHnBrsxfHackYzzomKJiy5te1k04LJdr6XxjACe9TonpJR8NPOQ3o5btASx_oMw4trmXLYdkda77wY0NJ9Scl69lKvGiOfdnRi5Q0IbBu185Y0TZgyUJz3Auqqv-Wk7zjRke4DzqYEc3ucyUBOq08j5223te-G2K72aL9PxgVJaEHBbLvhdJscCy-zcyU29EZoNlG_E5";
  private static final String codeVerifier = "NlJx4kD4opk4HY7zBM6WfUHxX7HoF8A2TUhOIPGA74w";

  private static final SpotifyApi spotifyApi = new SpotifyApi.Builder()
    .setClientId(clientId)
    .setRedirectUri(redirectUri)
    .build();
  private static final AuthorizationCodePKCERequest authorizationCodePKCERequest = spotifyApi.authorizationCodePKCE(code, codeVerifier)
                                                                                             .build();

  public static void authorizationCode_Sync() {
    try {
      final AuthorizationCodeCredentials authorizationCodeCredentials = authorizationCodePKCERequest.execute();

      // Set access and refresh token for further "spotifyApi" object usage
      spotifyApi.setAccessToken(authorizationCodeCredentials.getAccessToken());
      spotifyApi.setRefreshToken(authorizationCodeCredentials.getRefreshToken());

      System.out.println("Expires in: " + authorizationCodeCredentials.getExpiresIn());
    } catch (IOException | SpotifyWebApiException | ParseException e) {
      System.out.println("Error: " + e.getMessage());
    }
  }

  public static void authorizationCode_Async() {
    try {
      final CompletableFuture<AuthorizationCodeCredentials> authorizationCodeCredentialsFuture = authorizationCodePKCERequest.executeAsync();

      // Thread free to do other tasks...

      // Example Only. Never block in production code.
      final AuthorizationCodeCredentials authorizationCodeCredentials = authorizationCodeCredentialsFuture.join();

      // Set access and refresh token for further "spotifyApi" object usage
      spotifyApi.setAccessToken(authorizationCodeCredentials.getAccessToken());
      spotifyApi.setRefreshToken(authorizationCodeCredentials.getRefreshToken());

      System.out.println("Expires in: " + authorizationCodeCredentials.getExpiresIn());
    } catch (CompletionException e) {
      System.out.println("Error: " + e.getCause().getMessage());
    } catch (CancellationException e) {
      System.out.println("Async operation cancelled.");
    }
  }

  public static void main(String[] args) {
    authorizationCode_Sync();
    authorizationCode_Async();
  }
}