/**
* Adapter for spotify's lookup api
*
* @param spotifyId - id of track, has to start with "spotify:track:"
* @return Track with given id
* @throws SpotifyApiException - Error contacting spotify,
* @throws IllegalArgumentException - Is thrown when trying to fetch data that isn't a track
*/
private SpotifyLookupContainer requestSpotifySong(String spotifyId) throws SpotifyApiException {
RestTemplate rest = new RestTemplate();
SpotifyLookupContainer response = null;
if (spotifyId.indexOf("spotify:track:")
!= 0) { // trying to look up something that isn't a track
throw new IllegalArgumentException();
}
try {
logger.debug("Fetching spotifysong with uri: " + spotifyId);
String jsonResponse =
rest.getForObject("http://ws.spotify.com/lookup/1/.json?uri=" + spotifyId, String.class);
response =
gson.fromJson(
jsonResponse,
SpotifyLookupContainer
.class); // use gson rather than built in spring deserializer which needs the
// object to match all fields
if (!isPlayable(response.getTrack())) {
logger.debug(
"Song " + response.getTrack().getName() + " is not playable in Norway, ignoring");
throw new IllegalArgumentException("Song not playable in Norway");
}
} catch (RestClientException e) {
logger.error(
"Exception while fetching spotifySong " + spotifyId + " error: " + e.getMessage());
throw new SpotifyApiException(e.getMessage());
}
return response;
}
public RequestResponse requestSong(String spotifyId, String token, int locationId, String code)
throws SpotifyApiException, UpdateQRCodeException {
if (!data.hasSong(spotifyId)) { // Fetch song info from spotify if neccessary
SpotifyLookupContainer song = requestSpotifySong(spotifyId);
logger.debug(
song.getTrack().getName()
+ " - Fetched from spotify, length: "
+ song.getTrack().getLength());
long length = (long) song.getTrack().getLength() * 1000;
data.saveSong(
spotifyId, song.getTrack().getName(), song.getTrack().concatArtistNames(), length);
}
int qrValidationCode = qrService.verify(code, locationId);
if (!data.getSession(locationId).isOpen()) { // session is not open
return new RequestResponse(
"Stemming er ikke mulig. Sesjonen er ikke aktiv", false, qrValidationCode);
} else if (qrValidationCode == QR_IS_NOT_VALID) { // Code is not valid
return new RequestResponse("QR-koden er ikke gyldig", false, qrValidationCode);
} else if (qrValidationCode == QR_HAS_UNLIMITED_USES) { // Unlimited votes so check token
int userId = verifyToken(token); // throws exception if code is not valid or is null
if (data.userCanRequestSong(spotifyId, locationId, userId)) {
data.requestSongOneActiveVote(spotifyId, locationId, userId);
} else {
logger.debug(
"User "
+ userId
+ " could not vote for song "
+ spotifyId
+ " at location "
+ locationId);
return new RequestResponse(
"Denne brukeren har allerede stemt opp denne sangen", false, qrValidationCode);
}
} else if (qrValidationCode == QR_HAS_LIMITED_USES) { // Limited votes, so token not neccessary
int userId = authService.verify(token);
if (userId == -1) { // Token null or not valid
userId = -1337; // The fake spotify user
}
boolean success =
data.requestSongManyActiveVotes(
spotifyId,
locationId,
userId); // No need to update qrcodes and such.//Jo? Have to decrement the uses.
if (success) {
if (!qrService.codeIsUsed(code)) {
logger.debug("Could not update QRcode");
}
} else {
return new RequestResponse("Kunne ikke oppdatere databasen", false, qrValidationCode);
}
}
return new RequestResponse("Stemmen ble registrert", true, qrValidationCode);
}