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codemashercodemasher
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✨ +last.fm album patchwork example
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‎examples/Providers/LastFM/lastfm-common.php‎

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<?php
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/**
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* @filesource lastfm-common.php
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* @created 03.08.2019
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* @author smiley <smiley@chillerlan.net>
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* @copyright 2019 smiley
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* @license MIT
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*/
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namespace chillerlan\OAuthExamples\Providers\LastFM;
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use chillerlan\OAuth\Core\AccessToken;
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use chillerlan\OAuth\Providers\LastFM;
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use function file_get_contents;
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$ENVVAR = 'LASTFM';
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/**
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* @var \Psr\Http\Client\ClientInterface $http
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* @var \chillerlan\Settings\SettingsContainerInterface $options
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* @var \chillerlan\OAuth\Storage\OAuthStorageInterface $storage
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* @var \Psr\Log\LoggerInterface $logger
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* @var string $CFGDIR
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*/
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require_once __DIR__.'/../provider-api-example-common.php';
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$lfm = new LastFM($http, $options, $logger);
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$lfm->setStorage($storage);
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if(!$storage->hasAccessToken()){
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$token = (new AccessToken)->fromJSON(file_get_contents(($CFGDIR ?? '').'/LastFM.token.json'));
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$lfm->storeAccessToken($token);
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}

‎examples/Providers/LastFM/topalbum-patchwork.html‎

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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0"/>
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<title>Last.fm top albums chart</title>
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<style>
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body{font-size: 20px; line-height: 1.4em; font-family: "Trebuchet MS", sans-serif; color: #000;}
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input, textarea, select{font-family: Consolas, "Liberation Mono", Courier, monospace; font-size: 75%; line-height: 1.25em; border: 1px solid #aaa;}
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input:focus, textarea:focus, select:focus{ border: 1px solid #ccc;}
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input[type=number]{width: 4em;}
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label{cursor: pointer;}
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#image-settings, div#image-output{ text-align: center; padding: 1em;}
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#footer{text-align: center;font-size: 75%;}
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</style>
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</head>
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<body>
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<form id="image-settings">
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<label for="username">last.fm username</label>
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<input id="username" name="username" type="text" autocomplete="off" spellcheck="false"/>
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<label for="period">period</label>
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<select id="period" name="period">
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<option value="7day">7 day</option>
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<option value="1month" selected="selected">1 month</option>
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<option value="3month">3 month</option>
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<option value="6month">6 month</option>
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<option value="12month">12 month</option>
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<option value="overall">overall</option>
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</select>
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<label for="width">width</label>
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<input id="width" name="width" type="number" min="1" max="10" value="5" placeholder="width"/>
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<label for="height">height</label>
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<input id="height" name="height" type="number" min="1" max="10" value="5" placeholder="height"/>
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<label for="imagesize">size</label>
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<input id="imagesize" name="imagesize" type="number" min="30" max="150" value="125" placeholder="imagesize"/>
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<button type="submit">generate</button>
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</form>
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<div id="image-output"></div>
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<div id="footer">[ <a href="https://github.com/chillerlan/php-oauth/tree/master/examples/LastFM">github</a> ]</div>
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<script src="https://cdnjs.cloudflare.com/ajax/libs/prototype/1.7.3/prototype.js"></script>
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<script>
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((form, output, url) => {
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$(form).observe('submit', ev => {
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Event.stop(ev);
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new Ajax.Request(url, {
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method : 'post',
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parameters : JSON.stringify(ev.target.serialize(true)),
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onUninitialized: $(output).update(),
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onLoading : $(output).update('<img src="https://media.giphy.com/media/3o6nV1reufhmjUXMJi/giphy.gif"/>'),
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onFailure : response => $(output).update(response.responseJSON.error),
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onSuccess : response => $(output).update(response.responseJSON.image),
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});
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});
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})('image-settings', 'image-output', './topalbum-patchwork.php');
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</script>
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</body>
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</html>

‎examples/Providers/LastFM/topalbum-patchwork.php‎

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<?php
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/**
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* topalbum-patchwork.php
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*
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* @link https://www.reddit.com/r/lastfm/search?q=flair_name%3A%22Chart%22&restrict_sr=1
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* @link https://github.com/Dinduks/Lastfm-Top-Albums
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*
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* @created 03.03.2019
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* @author smiley <smiley@chillerlan.net>
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* @copyright 2019 smiley
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* @license MIT
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*
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* @noinspection PhpComposerExtensionStubsInspection
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*/
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namespace chillerlan\OAuthExamples\Providers\LastFM;
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use chillerlan\HTTP\Utils\MessageUtil;
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use Exception;
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use function array_column;
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use function array_shift;
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use function count;
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use function dirname;
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use function file_exists;
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use function file_get_contents;
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use function file_put_contents;
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use function header;
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use function imagecolorallocate;
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use function imagecopyresampled;
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use function imagecreatefromgif;
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use function imagecreatefromjpeg;
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use function imagecreatefrompng;
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use function imagecreatetruecolor;
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use function imagedestroy;
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use function imagefill;
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use function imagejpeg;
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use function imagesx;
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use function imagesy;
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use function intval;
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use function json_decode;
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use function json_encode;
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use function max;
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use function min;
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use function mkdir;
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use function parse_url;
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use function sha1;
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use function strlen;
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use function substr;
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use function trim;
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use const JSON_PRETTY_PRINT;
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use const PHP_URL_PATH;
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$ENVVAR = 'LASTFM';
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/**
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* @var \Psr\Log\LoggerInterface $logger
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* @var \chillerlan\OAuth\Providers\LastFM $lfm
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*/
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require_once __DIR__.'/lastfm-common.php';
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$urlcache = './urlcache';
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$imgcache = './cache'; // public access
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try{
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$request = json_decode(file_get_contents('php://input'));
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if(!$request || !isset($request->username)){
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header('HTTP/1.1 400 Bad Request');
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sendResponse(['error' => 'invalid request']);
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}
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$user = trim($request->username);
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$rows = max(0, min(intval($request->height), 10));
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$cols = max(0, min(intval($request->width), 10));
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$imageSize = max(30, min(intval($request->imagesize), 150));
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$period = trim($request->period);
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$limit = ($rows * $cols + 10);
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// doesn't necessarily need session auth, api key alone is sufficient
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$response = $lfm->request('user.getTopAlbums', ['user' => $user, 'period' => $period, 'limit' => $limit]);
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if($response->getStatusCode() !== 200){
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header('HTTP/1.1 '.$response->getStatusCode().' '.$response->getReasonPhrase());
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sendResponse(['error' => 'last.fm error']);
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}
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$json = MessageUtil::decodeJSON($response);
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if(!$json || !isset($json->topalbums->album)){
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header('HTTP/1.1 500 Internal Server Error');
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sendResponse(['error' => '...']);
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}
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// a not-too-unique hash
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$hash = sha1(json_encode([$rows, $cols, $imageSize,
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array_column($json->topalbums->album, 'artist'),
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array_column($json->topalbums->album, 'name'),
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array_column($json->topalbums->album, 'mbid'),
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]));
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$imagefile = $imgcache.'/'.$hash.'.jpg';
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if(file_exists($imagefile)){
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header('HTTP/1.1 200 OK');
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sendResponse(['image' => '<img src="'.$imagefile.'"/>', 'cached' => true]);
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}
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$res = [];
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foreach(array_column($json->topalbums->album, 'image') as $img){
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if(empty($img)){
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continue;
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}
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$path = getImage($img[(count($img) - 1)]->{'#text'}, $urlcache);
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$ext = substr($path, (strlen($path) - 3));
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$res[] = match($ext){
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'jpg' => imagecreatefromjpeg($path),
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'png' => imagecreatefrompng($path),
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'gif' => imagecreatefromgif($path),
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};
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}
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$patchwork = imagecreatetruecolor(($cols * $imageSize), ($rows * $imageSize));
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$bg = imagecolorallocate($patchwork, 0, 0, 0);
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imagefill($patchwork, 0, 0, $bg);
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for($y = 0; $y < $rows; $y++){
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for($x = 0; $x < $cols; $x++){
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if(empty($res)){
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break;
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}
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$img = array_shift($res);
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imagecopyresampled($patchwork, $img, ($x * $imageSize), ($y * $imageSize), 0, 0, $imageSize, $imageSize, imagesx($img), imagesy($img));
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imagedestroy($img);
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}
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}
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// save the image into a file
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imagejpeg($patchwork, $imagefile, 85);
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imagedestroy($patchwork);
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if(file_exists($imagefile)){
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header('HTTP/1.1 200 OK');
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sendResponse(['image' => '<img src="'.$imagefile.'"/>', 'cached' => false]);
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}
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}
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// Pokémon exception handler
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catch(Exception $e){
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header('HTTP/1.1 500 Internal Server Error');
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sendResponse(['error' => $e->getMessage()]);
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}
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exit;
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function getImage(string $url, string $urlcache):string{
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$path = parse_url($url, PHP_URL_PATH);
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if(file_exists($urlcache.$path)){
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return $urlcache.$path;
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}
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$dir = $urlcache.dirname($path);
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$imagedata = file_get_contents($url);
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if(!file_exists($dir)){
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mkdir($dir, 0777, true);
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}
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file_put_contents($urlcache.$path, $imagedata);
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return $urlcache.$path;
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}
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function sendResponse(array $response):void{
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header('Content-type: application/json;charset=utf-8;');
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echo json_encode($response, JSON_PRETTY_PRINT);
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exit;
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}
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