bin/import-game-data.php

   1 #!/usr/bin/env php
   2 <?php
   3 /**
   4  * Import games from a OUYA game data repository
   5  *
   6  * @link https://github.com/cweiske/ouya-game-data/
   7  * @author Christian Weiske <cweiske@cweiske.de>
   8  */
   9 ini_set('xdebug.halt_level', E_WARNING|E_NOTICE|E_USER_WARNING|E_USER_NOTICE);
  10 require_once __DIR__ . '/filters.php';
  11 if (!isset($argv[1])) {
  12     error('Pass the path to a "folders" file with game data json files folder names');
  13 }
  14 $foldersFile = $argv[1];
  15 if (!is_file($foldersFile)) {
  16     error('Given path is not a file: ' . $foldersFile);
  17 }
  18
  19 $GLOBALS['packagelists']['cweiskepicks'] = [
  20     'de.eiswuxe.blookid2',
  21     'com.cosmos.babyloniantwins',
  22     'com.inverseblue.skyriders',
  23 ];
  24
  25 $wwwDir = __DIR__ . '/../www/';
  26
  27 $baseDir   = dirname($foldersFile);
  28 $gameFiles = [];
  29 foreach (file($foldersFile) as $line) {
  30     $line = trim($line);
  31     if (strlen($line)) {
  32         if (strpos($line, '..') !== false) {
  33             error('Path attack in ' . $folder);
  34         }
  35         $folder = $baseDir . '/' . $line;
  36         if (!is_dir($folder)) {
  37             error('Folder does not exist: ' . $folder);
  38         }
  39         $gameFiles = array_merge($gameFiles, glob($folder . '/*.json'));
  40     }
  41 }
  42
  43 $games = [];
  44 $count = 0;
  45 $developers = [];
  46 foreach ($gameFiles as $gameFile) {
  47     $game = json_decode(file_get_contents($gameFile));
  48     if ($game === null) {
  49         error('JSON invalid at ' . $gameFile);
  50     }
  51     addMissingGameProperties($game);
  52     $games[$game->packageName] = $game;
  53
  54     writeJson(
  55         'api/v1/details-data/' . $game->packageName . '.json',
  56         buildDetails($game)
  57     );
  58
  59     if (!isset($developers[$game->developer->uuid])) {
  60         $developers[$game->developer->uuid] = [
  61             'info'     => $game->developer,
  62             'products' => [],
  63         ];
  64     }
  65
  66     $products = $game->products ?? [];
  67     foreach ($products as $product) {
  68         writeJson(
  69             'api/v1/developers/' . $game->developer->uuid
  70             . '/products/' . $product->identifier . '.json',
  71             buildDeveloperProductOnly($product, $game->developer)
  72         );
  73         $developers[$game->developer->uuid]['products'][] = $product;
  74     }
  75
  76     /**/
  77     writeJson(
  78         'api/v1/games/' . $game->packageName . '/purchases',
  79         buildPurchases($game)
  80     );
  81
  82     writeJson(
  83         'api/v1/apps/' . $game->packageName . '.json',
  84         buildApps($game)
  85     );
  86     $latestRelease = $game->latestRelease;
  87     writeJson(
  88         'api/v1/apps/' . $latestRelease->uuid . '.json',
  89         buildApps($game)
  90     );
  91
  92     writeJson(
  93         'api/v1/apps/' . $latestRelease->uuid . '-download.json',
  94         buildAppDownload($game, $latestRelease)
  95     );
  96
  97     if ($count++ > 20) {
  98         //break;
  99     }
 100 }
 101
 102 calculateRank($games);
 103
 104 foreach ($developers as $developer) {
 105     writeJson(
 106         //index.htm does not need a rewrite rule
 107         'api/v1/developers/' . $developer['info']->uuid
 108         . '/products/index.htm',
 109         buildDeveloperProducts($developer['products'], $developer['info'])
 110     );
 111     writeJson(
 112         //index.htm does not need a rewrite rule
 113         'api/v1/developers/' . $developer['info']->uuid
 114         . '/current_gamer',
 115         buildDeveloperCurrentGamer()
 116     );
 117 }
 118
 119 writeJson('api/v1/discover-data/discover.json', buildDiscover($games));
 120 writeJson('api/v1/discover-data/home.json', buildDiscoverHome($games));
 121
 122 //make
 123 writeJson(
 124     'api/v1/discover-data/tutorials.json',
 125     buildMakeCategory('Tutorials', filterByGenre($games, 'Tutorials'))
 126 );
 127
 128 $searchLetters = 'abcdefghijklmnopqrstuvwxyz0123456789., ';
 129 foreach (str_split($searchLetters) as $letter) {
 130     $letterGames = filterBySearchWord($games, $letter);
 131     writeJson(
 132         'api/v1/search-data/' . $letter . '.json',
 133         buildSearch($letterGames)
 134     );
 135 }
 136
 137
 138 function buildDiscover(array $games)
 139 {
 140     $games = removeMakeGames($games);
 141     $data = [
 142         'title' => 'DISCOVER',
 143         'rows'  => [],
 144         'tiles' => [],
 145     ];
 146
 147     addDiscoverRow(
 148         $data, 'Last Updated',
 149         filterLastUpdated($games, 10)
 150     );
 151     addDiscoverRow(
 152         $data, 'Best rated',
 153         filterBestRated($games, 10)
 154     );
 155     addDiscoverRow(
 156         $data, "cweiske's picks",
 157         filterByPackageNames($games, $GLOBALS['packagelists']['cweiskepicks'])
 158     );
 159
 160     addDiscoverRow(
 161         $data, 'Special',
 162         [
 163             'Best rated',
 164             'Most rated',
 165             'Random',
 166         ]
 167     );
 168     writeJson(
 169         'api/v1/discover-data/' . categoryPath('Best rated') . '.json',
 170         buildSpecialCategory('Best rated', filterBestRated($games, 99))
 171     );
 172     writeJson(
 173         'api/v1/discover-data/' . categoryPath('Most rated') . '.json',
 174         buildSpecialCategory('Most rated', filterMostDownloaded($games, 99))
 175     );
 176     writeJson(
 177         'api/v1/discover-data/' . categoryPath('Random') . '.json',
 178         buildSpecialCategory(
 179             'Random ' . date('Y-m-d H:i'),
 180             filterRandom($games, 99)
 181         )
 182     );
 183
 184     $players = [
 185         //1 => '1 player',
 186         2 => '2 players',
 187         3 => '3 players',
 188         4 => '4 players',
 189     ];
 190     addDiscoverRow($data, 'Multiplayer', $players);
 191     foreach ($players as $num => $title) {
 192         writeJson(
 193             'api/v1/discover-data/' . categoryPath($title) . '.json',
 194             buildDiscoverCategory($title, filterByPlayers($games, $num))
 195         );
 196     }
 197
 198     $ages = getAllAges($games);
 199     natsort($ages);
 200     addDiscoverRow($data, 'Content rating', $ages);
 201     foreach ($ages as $num => $title) {
 202         writeJson(
 203             'api/v1/discover-data/' . categoryPath($title) . '.json',
 204             buildDiscoverCategory($title, filterByAge($games, $title))
 205         );
 206     }
 207
 208     $genres = removeMakeGenres(getAllGenres($games));
 209     sort($genres);
 210     addChunkedDiscoverRows($data, $genres, 'Genres');
 211
 212     foreach ($genres as $genre) {
 213         writeJson(
 214             'api/v1/discover-data/' . categoryPath($genre) . '.json',
 215             buildDiscoverCategory($genre, filterByGenre($games, $genre))
 216         );
 217     }
 218
 219     $abc = array_merge(range('A', 'Z'), ['Other']);
 220     addChunkedDiscoverRows($data, $abc, 'Alphabetical');
 221     foreach ($abc as $letter) {
 222         writeJson(
 223             'api/v1/discover-data/' . categoryPath($letter) . '.json',
 224             buildDiscoverCategory($letter, filterByLetter($games, $letter))
 225         );
 226     }
 227
 228     return $data;
 229 }
 230
 231 /**
 232  * A genre category page
 233  */
 234 function buildDiscoverCategory($name, $games)
 235 {
 236     $data = [
 237         'title' => $name,
 238         'rows'  => [],
 239         'tiles' => [],
 240     ];
 241     addDiscoverRow(
 242         $data, 'Last Updated',
 243         filterLastUpdated($games, 10)
 244     );
 245     addDiscoverRow(
 246         $data, 'Best rated',
 247         filterBestRated($games, 10)
 248     );
 249
 250     $games = sortByTitle($games);
 251     $chunks = array_chunk($games, 4);
 252     foreach ($chunks as $chunkGames) {
 253         addDiscoverRow($data, '', $chunkGames);
 254     }
 255
 256     return $data;
 257 }
 258
 259 function buildMakeCategory($name, $games)
 260 {
 261     $data = [
 262         'title' => $name,
 263         'rows'  => [],
 264         'tiles' => [],
 265     ];
 266
 267     $games = sortByTitle($games);
 268     addDiscoverRow($data, '', $games);
 269
 270     return $data;
 271 }
 272
 273 function buildSpecialCategory($name, $games)
 274 {
 275     $data = [
 276         'title' => $name,
 277         'rows'  => [],
 278         'tiles' => [],
 279     ];
 280
 281     $first3 = array_slice($games, 0, 3);
 282     $chunks = array_chunk(array_slice($games, 3), 4);
 283     array_unshift($chunks, $first3);
 284
 285     foreach ($chunks as $chunkGames) {
 286         addDiscoverRow($data, '', $chunkGames);
 287     }
 288
 289     return $data;
 290 }
 291
 292 function buildDiscoverHome(array $games)
 293 {
 294     //we do not want anything here for now
 295     $data = [
 296         'title' => 'home',
 297         'rows'  => [
 298             [
 299                 'title' => 'FEATURED',
 300                 'showPrice' => false,
 301                 'ranked'    => false,
 302                 'tiles'     => [],
 303             ]
 304         ],
 305         'tiles' => [],
 306     ];
 307     return $data;
 308 }
 309
 310 /**
 311  * Build api/v1/apps/$packageName
 312  */
 313 function buildApps($game)
 314 {
 315     $latestRelease = $game->latestRelease;
 316
 317     $product      = null;
 318     $gamePromoted = getPromotedProduct($game);
 319     if ($gamePromoted) {
 320         $product = buildProduct($gamePromoted);
 321     }
 322
 323     // http://cweiske.de/ouya-store-api-docs.htm#get-https-devs-ouya-tv-api-v1-apps-xxx
 324     return [
 325         'app' => [
 326             'uuid'          => $latestRelease->uuid,
 327             'title'         => $game->title,
 328             'overview'      => $game->overview,
 329             'description'   => $game->description,
 330             'gamerNumbers'  => $game->players,
 331             'genres'        => $game->genres,
 332
 333             'website'       => $game->website,
 334             'contentRating' => $game->contentRating,
 335             'premium'       => $game->premium,
 336             'firstPublishedAt' => $game->firstPublishedAt,
 337
 338             'likeCount'     => $game->rating->likeCount,
 339             'ratingAverage' => $game->rating->average,
 340             'ratingCount'   => $game->rating->count,
 341
 342             'versionNumber' => $latestRelease->name,
 343             'latestVersion' => $latestRelease->uuid,
 344             'md5sum'        => $latestRelease->md5sum,
 345             'apkFileSize'   => $latestRelease->size,
 346             'publishedAt'   => $latestRelease->date,
 347             'publicSize'    => $latestRelease->publicSize,
 348             'nativeSize'    => $latestRelease->nativeSize,
 349
 350             'mainImageFullUrl' => $game->discover,
 351             'videoUrl'         => getFirstVideoUrl($game->media),
 352             'filepickerScreenshots' => getAllImageUrls($game->media),
 353             'mobileAppIcon'    => null,
 354
 355             'developer'           => $game->developer->name,
 356             'supportEmailAddress' => $game->developer->supportEmail,
 357             'supportPhone'        => $game->developer->supportPhone,
 358             'founder'             => $game->developer->founder,
 359
 360             'promotedProduct' => $product,
 361         ],
 362     ];
 363 }
 364
 365 function buildAppDownload($game, $release)
 366 {
 367     return [
 368         'app' => [
 369             'fileSize'      => $release->size,
 370             'version'       => $release->uuid,
 371             'contentRating' => $game->contentRating,
 372             'downloadLink'  => $release->url,
 373         ]
 374     ];
 375 }
 376
 377 function buildProduct($product)
 378 {
 379     if ($product === null) {
 380         return null;
 381     }
 382     return [
 383         'type'          => 'entitlement',
 384         'identifier'    => $product->identifier,
 385         'name'          => $product->name,
 386         'description'   => $product->description ?? '',
 387         'localPrice'    => $product->localPrice,
 388         'originalPrice' => $product->originalPrice,
 389         'percentOff'    => 0,
 390         'currency'      => $product->currency,
 391     ];
 392 }
 393
 394 /**
 395  * Build /app/v1/details?app=org.example.game
 396  */
 397 function buildDetails($game)
 398 {
 399     $latestRelease = $game->latestRelease;
 400
 401     $mediaTiles = [];
 402     if ($game->discover) {
 403         $mediaTiles[] = [
 404             'type' => 'image',
 405             'urls' => [
 406                 'thumbnail' => $game->discover,
 407                 'full'      => $game->discover,
 408             ],
 409         ];
 410     }
 411     foreach ($game->media as $medium) {
 412         if ($medium->type == 'image')  {
 413             $mediaTiles[] = [
 414                 'type' => 'image',
 415                 'urls' => [
 416                     'thumbnail' => $medium->thumb,
 417                     'full'      => $medium->url,
 418                 ],
 419             ];
 420         } else {
 421             $mediaTiles[] = [
 422                 'type' => 'video',
 423                 'url'  => $medium->url,
 424             ];
 425         }
 426     }
 427
 428     $buttons = [];
 429     if (isset($game->links->unlocked)) {
 430         $buttons[] = [
 431             'text' => 'Show unlocked',
 432             'url'  => 'ouya://launcher/details?app=' . $game->links->unlocked,
 433             'bold' => true,
 434         ];
 435     }
 436
 437     $product      = null;
 438     $gamePromoted = getPromotedProduct($game);
 439     if ($gamePromoted) {
 440         $product = buildProduct($gamePromoted);
 441     }
 442
 443     // http://cweiske.de/ouya-store-api-docs.htm#get-https-devs-ouya-tv-api-v1-details
 444     return [
 445         'type'             => 'Game',
 446         'title'            => $game->title,
 447         'description'      => $game->description,
 448         'gamerNumbers'     => $game->players,
 449         'genres'           => $game->genres,
 450
 451         'suggestedAge'     => $game->contentRating,
 452         'premium'          => $game->premium,
 453         'inAppPurchases'   => $game->inAppPurchases,
 454         'firstPublishedAt' => strtotime($game->firstPublishedAt),
 455         'ccUrl'            => null,
 456
 457         'rating' => [
 458             'count'   => $game->rating->count,
 459             'average' => $game->rating->average,
 460         ],
 461
 462         'apk' => [
 463             'fileSize'    => $latestRelease->size,
 464             'nativeSize'  => $latestRelease->nativeSize,
 465             'publicSize'  => $latestRelease->publicSize,
 466             'md5sum'      => $latestRelease->md5sum,
 467             'filename'    => 'FIXME',
 468             'errors'      => '',
 469             'package'     => $game->packageName,
 470             'versionCode' => $latestRelease->versionCode,
 471             'state'       => 'complete',
 472         ],
 473
 474         'version' => [
 475             'number'      => $latestRelease->name,
 476             'publishedAt' => strtotime($latestRelease->date),
 477             'uuid'        => $latestRelease->uuid,
 478         ],
 479
 480         'developer' => [
 481             'name'    => $game->developer->name,
 482             'founder' => $game->developer->founder,
 483         ],
 484
 485         'metaData' => [
 486             'key:rating.average',
 487             'key:developer.name',
 488             'key:suggestedAge',
 489             number_format($latestRelease->size / 1024 / 1024, 2, '.', '') . ' MiB',
 490         ],
 491
 492         'tileImage'     => $game->discover,
 493         'mediaTiles'    => $mediaTiles,
 494         'mobileAppIcon' => null,
 495         'heroImage'     => [
 496             'url' => null,
 497         ],
 498
 499         'promotedProduct' => $product,
 500         'buttons'         => $buttons,
 501     ];
 502 }
 503
 504 function buildDeveloperCurrentGamer()
 505 {
 506     return [
 507         'gamer' => [
 508             'uuid'     => '00702342-0000-1111-2222-c3e1500cafe2',
 509             'username' => 'stouyapi',
 510         ],
 511     ];
 512 }
 513
 514 /**
 515  * For /api/v1/developers/xxx/products/?only=yyy
 516  */
 517 function buildDeveloperProductOnly($product, $developer)
 518 {
 519     return [
 520         'developerName' => $developer->name,
 521         'currency'      => $product->currency,
 522         'products'      => [
 523             buildProduct($product),
 524         ],
 525     ];
 526 }
 527
 528 /**
 529  * For /api/v1/developers/xxx/products/
 530  */
 531 function buildDeveloperProducts($products, $developer)
 532 {
 533     $jsonProducts = [];
 534     foreach ($products as $product) {
 535         $jsonProducts[] = buildProduct($product);
 536     }
 537     return [
 538         'developerName' => $developer->name,
 539         'currency'      => $products[0]->currency ?? 'EUR',
 540         'products'      => $jsonProducts,
 541     ];
 542 }
 543
 544 function buildPurchases($game)
 545 {
 546     $purchasesData = [
 547         'purchases' => [],
 548     ];
 549     $promotedProduct = getPromotedProduct($game);
 550     if ($promotedProduct) {
 551         $purchasesData['purchases'][] = [
 552             'purchaseDate' => time() * 1000,
 553             'generateDate' => time() * 1000,
 554             'identifier'   => $promotedProduct->identifier,
 555             'gamer'        => '00702342-0000-1111-2222-c3e1500cafe2',//gamer uuid
 556             'uuid'         => '00702342-0000-1111-2222-c3e1500beef3',//transaction ID
 557             'priceInCents' => $promotedProduct->originalPrice * 100,
 558             'localPrice'   => $promotedProduct->localPrice,
 559             'currency'     => $promotedProduct->currency,
 560         ];
 561     }
 562
 563     $encryptedOnce  = dummyEncrypt($purchasesData);
 564     $encryptedTwice = dummyEncrypt($encryptedOnce);
 565     return $encryptedTwice;
 566 }
 567
 568 function buildSearch($games)
 569 {
 570     $games = sortByTitle($games);
 571     $results = [];
 572     foreach ($games as $game) {
 573         $results[] = [
 574             'title' => $game->title,
 575             'url'   => 'ouya://launcher/details?app=' . $game->packageName,
 576             'contentRating' => $game->contentRating,
 577         ];
 578     }
 579     return [
 580         'count'   => count($results),
 581         'results' => $results,
 582     ];
 583 }
 584
 585 function dummyEncrypt($data)
 586 {
 587     return [
 588         'key'  => base64_encode('0123456789abcdef') . "\n",
 589         'iv'   => 't3jir1LHpICunvhlM76edQ==' . "\n",//random bytes
 590         'blob' => base64_encode(
 591             json_encode($data, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES)
 592         ) . "\n",
 593     ];
 594 }
 595
 596 function addChunkedDiscoverRows(&$data, $games, $title)
 597 {
 598     $chunks = array_chunk($games, 4);
 599     $first = true;
 600     foreach ($chunks as $chunk) {
 601         addDiscoverRow(
 602             $data, $first ? $title : '',
 603             $chunk
 604         );
 605         $first = false;
 606     }
 607 }
 608
 609 function addDiscoverRow(&$data, $title, $games)
 610 {
 611     $row = [
 612         'title'     => $title,
 613         'showPrice' => true,
 614         'ranked'    => false,
 615         'tiles'     => [],
 616     ];
 617     foreach ($games as $game) {
 618         if (is_string($game)) {
 619             //category link
 620             $tilePos = count($data['tiles']);
 621             $data['tiles'][$tilePos] = buildDiscoverCategoryTile($game);
 622
 623         } else {
 624             //game
 625             if (isset($game->links->original)) {
 626                 //do not link unlocked games.
 627                 // people an access them via the original games
 628                 continue;
 629             }
 630             $tilePos = findTile($data['tiles'], $game->packageName);
 631             if ($tilePos === null) {
 632                 $tilePos = count($data['tiles']);
 633                 $data['tiles'][$tilePos] = buildDiscoverGameTile($game);
 634             }
 635         }
 636         $row['tiles'][] = $tilePos;
 637     }
 638     $data['rows'][] = $row;
 639 }
 640
 641 function findTile($tiles, $packageName)
 642 {
 643     foreach ($tiles as $pos => $tile) {
 644         if ($tile['package'] == $packageName) {
 645             return $pos;
 646         }
 647     }
 648     return null;
 649 }
 650
 651 function buildDiscoverCategoryTile($title)
 652 {
 653     return [
 654         'url'   => 'ouya://launcher/discover/' . categoryPath($title),
 655         'image' => '',
 656         'title' => $title,
 657         'type'  => 'discover'
 658     ];
 659 }
 660
 661 function buildDiscoverGameTile($game)
 662 {
 663     $latestRelease = $game->latestRelease;
 664     return [
 665         'gamerNumbers' => $game->players,
 666         'genres' => $game->genres,
 667         'url' => 'ouya://launcher/details?app=' . $game->packageName,
 668         'latestVersion' => [
 669             'apk' => [
 670                 'md5sum' => $latestRelease->md5sum,
 671             ],
 672             'versionNumber' => $latestRelease->name,
 673             'uuid' => $latestRelease->uuid,
 674         ],
 675         'inAppPurchases' => $game->inAppPurchases,
 676         'promotedProduct' => null,
 677         'premium' => $game->premium,
 678         'type' => 'app',
 679         'package' => $game->packageName,
 680         'updated_at' => strtotime($latestRelease->date),
 681         'updatedAt' => $latestRelease->date,
 682         'title' => $game->title,
 683         'image' => $game->discover,
 684         'contentRating' => $game->contentRating,
 685         'rating' => [
 686             'count' => $game->rating->count,
 687             'average' => $game->rating->average,
 688         ],
 689         'promotedProduct' => buildProduct(getPromotedProduct($game)),
 690     ];
 691 }
 692
 693 function categoryPath($title)
 694 {
 695     return str_replace(['/', '\\', ' ', '+', '?'], '_', $title);
 696 }
 697
 698 function getAllAges($games)
 699 {
 700     $ages = [];
 701     foreach ($games as $game) {
 702         $ages[] = $game->contentRating;
 703     }
 704     return array_unique($ages);
 705 }
 706
 707 function getAllGenres($games)
 708 {
 709     $genres = [];
 710     foreach ($games as $game) {
 711         $genres = array_merge($genres, $game->genres);
 712     }
 713     return array_unique($genres);
 714 }
 715
 716 function addMissingGameProperties($game)
 717 {
 718     if (!isset($game->overview)) {
 719         $game->overview = null;
 720     }
 721     if (!isset($game->description)) {
 722         $game->description = '';
 723     }
 724     if (!isset($game->players)) {
 725         $game->players = [1];
 726     }
 727     if (!isset($game->genres)) {
 728         $game->genres = ['Unsorted'];
 729     }
 730     if (!isset($game->website)) {
 731         $game->website = null;
 732     }
 733     if (!isset($game->contentRating)) {
 734         $game->contentRating = 'Everyone';
 735     }
 736     if (!isset($game->premium)) {
 737         $game->premium = false;
 738     }
 739     if (!isset($game->firstPublishedAt)) {
 740         $game->firstPublishedAt = gmdate('c');
 741     }
 742
 743     if (!isset($game->rating)) {
 744         $game->rating = new stdClass();
 745     }
 746     if (!isset($game->rating->likeCount)) {
 747         $game->rating->likeCount = 0;
 748     }
 749     if (!isset($game->rating->average)) {
 750         $game->rating->average = 0;
 751     }
 752     if (!isset($game->rating->count)) {
 753         $game->rating->count = 0;
 754     }
 755
 756     $game->latestRelease = null;
 757     $latestReleaseTimestamp = 0;
 758     foreach ($game->releases as $release) {
 759         if (!isset($release->publicSize)) {
 760             $release->publicSize = 0;
 761         }
 762         if (!isset($release->nativeSize)) {
 763             $release->nativeSize = 0;
 764         }
 765
 766         $releaseTimestamp = strtotime($release->date);
 767         if ($releaseTimestamp > $latestReleaseTimestamp) {
 768             $game->latestRelease    = $release;
 769             $latestReleaseTimestamp = $releaseTimestamp;
 770         }
 771     }
 772     if ($game->latestRelease === null) {
 773         error('No latest release for ' . $game->packageName);
 774     }
 775
 776     if (!isset($game->media)) {
 777         $game->media = [];
 778     }
 779
 780     if (!isset($game->developer->uuid)) {
 781         $game->developer->uuid = null;
 782     }
 783     if (!isset($game->developer->name)) {
 784         $game->developer->name = 'unknown';
 785     }
 786     if (!isset($game->developer->supportEmail)) {
 787         $game->developer->supportEmail = null;
 788     }
 789     if (!isset($game->developer->supportPhone)) {
 790         $game->developer->supportPhone = null;
 791     }
 792     if (!isset($game->developer->founder)) {
 793         $game->developer->founder = false;
 794     }
 795 }
 796
 797 /**
 798  * Implements a sensible ranking system described in
 799  * https://stackoverflow.com/a/1411268/2826013
 800  */
 801 function calculateRank(array $games)
 802 {
 803     $averageRatings = array_map(
 804         function ($game) {
 805             return $game->rating->average;
 806         },
 807         $games
 808     );
 809     $average = array_sum($averageRatings) / count($averageRatings);
 810     $C = $average;
 811     $m = 500;
 812
 813     foreach ($games as $game) {
 814         $R = $game->rating->average;
 815         $v = $game->rating->count;
 816         $game->rating->rank = ($R * $v + $C * $m) / ($v + $m);
 817     }
 818 }
 819
 820 function getFirstVideoUrl($media)
 821 {
 822     foreach ($media as $medium) {
 823         if ($medium->type == 'video') {
 824             return $medium->url;
 825         }
 826     }
 827     return null;
 828 }
 829
 830 function getAllImageUrls($media)
 831 {
 832     $imageUrls = [];
 833     foreach ($media as $medium) {
 834         if ($medium->type == 'image') {
 835             $imageUrls[] = $medium->url;
 836         }
 837     }
 838     return $imageUrls;
 839 }
 840
 841 function getPromotedProduct($game)
 842 {
 843     if (!isset($game->products) || !count($game->products)) {
 844         return null;
 845     }
 846     foreach ($game->products as $gameProd) {
 847         if ($gameProd->promoted) {
 848             return $gameProd;
 849         }
 850     }
 851     return null;
 852 }
 853
 854 function removeMakeGames(array $games)
 855 {
 856     return filterByGenre($games, 'Tutorials', true);
 857 }
 858
 859 function removeMakeGenres($genres)
 860 {
 861     $filtered = [];
 862     foreach ($genres as $genre) {
 863         if ($genre != 'Tutorials' && $genre != 'Builds') {
 864             $filtered[] = $genre;
 865         }
 866     }
 867     return $filtered;
 868 }
 869
 870 function writeJson($path, $data)
 871 {
 872     global $wwwDir;
 873     $fullPath = $wwwDir . $path;
 874     $dir = dirname($fullPath);
 875     if (!is_dir($dir)) {
 876         mkdir($dir, 0777, true);
 877     }
 878     file_put_contents(
 879         $fullPath,
 880         json_encode($data, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES) . "\n"
 881     );
 882 }
 883
 884 function error($msg)
 885 {
 886     fwrite(STDERR, $msg . "\n");
 887     exit(1);
 888 }
 889 ?>