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package utility;
import se.michaelthelin.spotify.SpotifyApi;
import se.michaelthelin.spotify.model_objects.credentials.ClientCredentials;
import se.michaelthelin.spotify.model_objects.specification.ArtistSimplified;
import se.michaelthelin.spotify.model_objects.specification.Playlist;
import se.michaelthelin.spotify.model_objects.specification.PlaylistTrack;
import se.michaelthelin.spotify.model_objects.specification.Track;
import se.michaelthelin.spotify.requests.authorization.client_credentials.ClientCredentialsRequest;
import se.michaelthelin.spotify.requests.data.playlists.GetPlaylistRequest;
import se.michaelthelin.spotify.requests.data.tracks.GetTrackRequest;
import java.time.Instant;
public class SpotifyAPI {
private static final String clientId = readSetting("spotifyClientID");
private static final String clientSecret = readSetting("spotifyClientSecret");
public static long lastRefresh = 0;
private static final SpotifyApi spotifyApi = new SpotifyApi.Builder()
.setClientId(clientId)
.setClientSecret(clientSecret)
.build();
private static final ClientCredentialsRequest clientCredentialsRequest = spotifyApi.clientCredentials()
.build();
public SpotifyAPI(){
}
public static String getSearchTerm_sync(String trackid) {
checkRefreshToken();
String searchQuery = "";
try {
GetTrackRequest getTrackRequest = spotifyApi.getTrack(trackid)
.build();
final Track track = getTrackRequest.execute();
searchQuery = track.getName();
ArtistSimplified[] artists = track.getArtists();
for (int i = 0; i < artists.length; i++) {
searchQuery = searchQuery + " " + artists[i].getName();
}
System.out.println(searchQuery);
} catch (Exception e) {
System.out.println("Error with getting name: " + e.getMessage() +"Retrying...");
return null;
}
return searchQuery;
}
public static String getRandomPlaylistTrack_Sync(String playlistId) {
checkRefreshToken();
GetPlaylistRequest getPlaylistRequest = spotifyApi.getPlaylist(playlistId).build();
try {
Playlist playlist = getPlaylistRequest.execute();
PlaylistTrack[] tracks = playlist.getTracks().getItems();
int randomTrack = (int) (Math.random() * tracks.length);
System.out.println(tracks[randomTrack].getTrack().getId());
return tracks[randomTrack].getTrack().getId();
} catch (Exception e) {
System.out.println("Error: " + e.getMessage());
}
return "";
}
public static PlaylistTrack[] getPlaylist_Sync(String playlistId) {
checkRefreshToken();
GetPlaylistRequest getPlaylistRequest = spotifyApi.getPlaylist(playlistId).build();
try {
Playlist playlist = getPlaylistRequest.execute();
PlaylistTrack[] tracks = playlist.getTracks().getItems();
return tracks;
} catch (Exception e) {
System.out.println("Error: " + e.getMessage());
}
return null;
}
public static void clientCredentials_Sync() {
try {
final ClientCredentials clientCredentials = clientCredentialsRequest.execute();
spotifyApi.setAccessToken(clientCredentials.getAccessToken());
System.out.println("Expires in: " + clientCredentials.getExpiresIn());
} catch (Exception e) {
System.out.println("Error: " + e.getMessage());
}
}
public static String readSetting(String parameter){
String value = System.getenv(parameter);
if (value != null) {
return value;
}
throw new RuntimeException("Environment variable " + parameter + " not found");
}
public static void checkRefreshToken(){
long unixTime = Instant.now().getEpochSecond();
if(lastRefresh + 3600 <= unixTime){
System.out.println("Spotify Token is expired, refreshing");
clientCredentials_Sync();
lastRefresh = Instant.now().getEpochSecond();
}
}
}
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