const registry = new Map();

export function registerGame(definition) {
  if (!definition?.slug) throw new Error('Game definition needs a slug.');
  registry.set(definition.slug, {
    slug: definition.slug,
    name: definition.name ?? definition.slug,
    category: definition.category ?? 'tabletop',
    cardGame: definition.cardGame ?? false,
    minPlayers: definition.minPlayers ?? 2,
    maxPlayers: definition.maxPlayers ?? 2,
    minOpponents: definition.minOpponents ?? 1,
    maxOpponents: definition.maxOpponents ?? 1,
    defaultOpponents: definition.defaultOpponents ?? null,
    defaultPlayfield: definition.defaultPlayfield ?? null,
    hasTutorial: definition.hasTutorial ?? false,
    iconFrame: definition.iconFrame ?? null,
  });
}

export function listGames() {
  return [...registry.values()];
}

export function getGame(slug) {
  return registry.get(slug) ?? null;
}

// Built-in catalog so the menu has something to show.
registerGame({ slug: 'backgammon', name: 'Backgammon', category: 'tabletop', minPlayers: 2, maxPlayers: 2, minOpponents: 1, maxOpponents: 1, hasTutorial: true, iconFrame: 0, defaultPlayfield: 'dark' });
registerGame({ slug: 'parchisi', name: 'Parchisi', category: 'tabletop', minPlayers: 1, maxPlayers: 4, minOpponents: 3, maxOpponents: 3, hasTutorial: true, iconFrame: 1 });
registerGame({ slug: 'blackjack', name: 'Blackjack', category: 'casino', cardGame: true, minPlayers: 1, maxPlayers: 7, minOpponents: 0, maxOpponents: 6, iconFrame: 2 });
registerGame({ slug: 'holdem', name: "Texas Hold 'Em", category: 'casino', cardGame: true, minPlayers: 2, maxPlayers: 8, minOpponents: 3, maxOpponents: 7, iconFrame: 3 });
registerGame({ slug: 'yatzi', name: 'Zahtzee', category: 'cards', minPlayers: 1, maxPlayers: 4, minOpponents: 1, maxOpponents: 3, iconFrame: 4 });
registerGame({ slug: 'skipbo', name: 'Skip-Bo', category: 'cards', cardGame: true, minPlayers: 1, maxPlayers: 4, minOpponents: 1, maxOpponents: 3, iconFrame: 5 });
registerGame({ slug: 'phase10', name: 'Phase 10', category: 'cards', cardGame: true, minPlayers: 1, maxPlayers: 4, minOpponents: 1, maxOpponents: 3, iconFrame: 6 });
registerGame({ slug: 'chinesecheckers', name: 'Chinese Checkers', category: 'tabletop', minPlayers: 6, maxPlayers: 6, minOpponents: 5, maxOpponents: 5, hasTutorial: true, iconFrame: 7 });
registerGame({ slug: 'gofish', name: 'Go Fish', category: 'cards', cardGame: true, minPlayers: 1, maxPlayers: 4, minOpponents: 3, maxOpponents: 3, iconFrame: 8 });
registerGame({ slug: 'uno', name: 'Uno', category: 'cards', cardGame: false, minPlayers: 1, maxPlayers: 4, minOpponents: 3, maxOpponents: 3, iconFrame: 9 });
registerGame({ slug: 'craps', name: 'Craps', category: 'casino', minPlayers: 1, maxPlayers: 7, minOpponents: 0, maxOpponents: 6, iconFrame: 10 });
registerGame({ slug: 'roulette', name: 'Roulette', category: 'casino', minPlayers: 1, maxPlayers: 7, minOpponents: 0, maxOpponents: 6, iconFrame: 11 });
registerGame({ slug: 'mexicantrain', name: 'Mexican Train', category: 'tabletop', minPlayers: 2, maxPlayers: 4, minOpponents: 1, maxOpponents: 3, hasTutorial: true, iconFrame: 12 });
registerGame({ slug: 'hearts', name: 'Hearts', category: 'cards', cardGame: true, minPlayers: 4, maxPlayers: 4, minOpponents: 3, maxOpponents: 3, iconFrame: 13 });
registerGame({ slug: 'catan', name: 'Settlers of Catan', category: 'tabletop', cardGame: true, minPlayers: 3, maxPlayers: 4, minOpponents: 2, maxOpponents: 3, hasTutorial: true, iconFrame: 14 });
registerGame({ slug: 'tickettoride', name: 'Ticket to Ride', category: 'tabletop', cardGame: true, minPlayers: 2, maxPlayers: 5, minOpponents: 1, maxOpponents: 4, hasTutorial: true, iconFrame: 15 });
registerGame({ slug: 'nerts', name: 'Nerts', category: 'cards', cardGame: true, minPlayers: 2, maxPlayers: 4, minOpponents: 1, maxOpponents: 3, iconFrame: 16 });
registerGame({ slug: 'bingo', name: 'Bingo', category: 'casino', minPlayers: 2, maxPlayers: 11, minOpponents: 1, maxOpponents: 10, iconFrame: 17 });
registerGame({ slug: 'baccarat', name: 'Baccarat', category: 'casino', cardGame: true, minPlayers: 2, maxPlayers: 7, minOpponents: 1, maxOpponents: 6, iconFrame: 18 });
registerGame({ slug: 'dominion', name: 'Dominion', category: 'cards', cardGame: true, minPlayers: 3, maxPlayers: 4, minOpponents: 2, maxOpponents: 3, hasTutorial: true, iconFrame: 19 });
registerGame({ slug: 'checkers', name: 'Checkers', category: 'tabletop', minPlayers: 2, maxPlayers: 2, minOpponents: 1, maxOpponents: 1, iconFrame: 20, defaultPlayfield: 'cherry' });
registerGame({ slug: 'chess', name: 'Chess', category: 'tabletop', minPlayers: 2, maxPlayers: 2, minOpponents: 1, maxOpponents: 1, iconFrame: 21, defaultPlayfield: 'dark' });
registerGame({ slug: 'wordle', name: 'Wordle Race', category: 'word', minPlayers: 2, maxPlayers: 2, minOpponents: 1, maxOpponents: 1, iconFrame: 22 });
registerGame({ slug: 'scrabble', name: 'Scrabble', category: 'word', minPlayers: 2, maxPlayers: 4, minOpponents: 1, maxOpponents: 3, iconFrame: 23 });
registerGame({ slug: 'ghost', name: 'Ghost', category: 'word', minPlayers: 2, maxPlayers: 2, minOpponents: 1, maxOpponents: 1, iconFrame: 24 });
registerGame({ slug: 'wordladder', name: 'Word Ladder', category: 'word', minPlayers: 1, maxPlayers: 2, minOpponents: 0, maxOpponents: 1, iconFrame: 25 });
registerGame({ slug: 'wordsearch', name: 'Word Search', category: 'word', minPlayers: 1, maxPlayers: 1, minOpponents: 0, maxOpponents: 0, iconFrame: 26 });
registerGame({ slug: 'hangman', name: 'Hangman', category: 'word', minPlayers: 1, maxPlayers: 1, minOpponents: 0, maxOpponents: 0, iconFrame: 27 });
registerGame({ slug: 'sudoku', name: 'Sudoku', category: 'word', minPlayers: 1, maxPlayers: 1, minOpponents: 0, maxOpponents: 0, iconFrame: 28 });
registerGame({ slug: 'othello', name: 'Othello', category: 'tabletop', minPlayers: 2, maxPlayers: 2, minOpponents: 1, maxOpponents: 1, iconFrame: 29, defaultPlayfield: 'cherry' });
registerGame({ slug: 'go', name: 'Go', category: 'tabletop', minPlayers: 2, maxPlayers: 2, minOpponents: 1, maxOpponents: 1, iconFrame: 30, defaultPlayfield: 'dark' });
registerGame({ slug: 'battleship', name: 'Battleship', category: 'tabletop', minPlayers: 2, maxPlayers: 2, minOpponents: 1, maxOpponents: 1, hasTutorial: true, iconFrame: 31 });
registerGame({ slug: 'mastermind', name: 'Mastermind', category: 'tabletop', minPlayers: 2, maxPlayers: 2, minOpponents: 1, maxOpponents: 1, hasTutorial: true, iconFrame: 32 });
registerGame({ slug: 'connect4', name: 'Connect 4', category: 'tabletop', minPlayers: 2, maxPlayers: 2, minOpponents: 1, maxOpponents: 1, iconFrame: 33 });
registerGame({ slug: 'boggle', name: 'Boggle', category: 'word', minPlayers: 2, maxPlayers: 4, minOpponents: 1, maxOpponents: 3, iconFrame: 34 });
registerGame({ slug: 'oldmaid', name: 'Old Maid', category: 'cards', cardGame: true, minPlayers: 1, maxPlayers: 4, minOpponents: 3, maxOpponents: 3, iconFrame: 35 });
registerGame({ slug: 'blokus', name: 'Blokus', category: 'tabletop', minPlayers: 2, maxPlayers: 4, minOpponents: 1, maxOpponents: 3, hasTutorial: true, iconFrame: 36 });
registerGame({ slug: 'spellingbee', name: 'Spelling Bee', category: 'word', minPlayers: 1, maxPlayers: 1, minOpponents: 0, maxOpponents: 0, iconFrame: 37 });
registerGame({ slug: 'minicrossword', name: 'Mini Crossword', category: 'word', minPlayers: 1, maxPlayers: 1, minOpponents: 0, maxOpponents: 0, iconFrame: 38 });
registerGame({ slug: 'tectonic', name: 'Tectonic', category: 'word', minPlayers: 1, maxPlayers: 1, minOpponents: 0, maxOpponents: 0, iconFrame: 42 });
registerGame({ slug: 'forbiddenisland', name: 'Forbidden Island', category: 'tabletop', minPlayers: 2, maxPlayers: 4, minOpponents: 1, maxOpponents: 3, hasTutorial: true, iconFrame: 39 });
registerGame({ slug: 'solitairetour', name: 'Solitaire Tour', category: 'cards', cardGame: true, minPlayers: 1, maxPlayers: 1, minOpponents: 0, maxOpponents: 0, iconFrame: 40 });
registerGame({ slug: 'splendor', name: 'Splendor', category: 'cards', cardGame: true, minPlayers: 2, maxPlayers: 4, minOpponents: 1, hasTutorial: true, maxOpponents: 3, iconFrame: 41 });
registerGame({ slug: 'labyrinth', name: 'Labyrinth', category: 'tabletop', minPlayers: 2, maxPlayers: 4, minOpponents: 1, maxOpponents: 3, hasTutorial: true, iconFrame: 43, defaultPlayfield: 'fantasy' });
registerGame({ slug: 'videopoker', name: 'Video Poker', category: 'casino', cardGame: true, minPlayers: 1, maxPlayers: 1, minOpponents: 0, maxOpponents: 0, iconFrame: 44 });
registerGame({ slug: 'farkel', name: 'Farkle', category: 'cards', minPlayers: 2, maxPlayers: 4, minOpponents: 1, maxOpponents: 3, hasTutorial: true, iconFrame: 45 });
registerGame({ slug: 'stratego', name: 'Stratego', category: 'tabletop', minPlayers: 2, maxPlayers: 2, minOpponents: 1, maxOpponents: 1, hasTutorial: false, iconFrame: 46, defaultPlayfield: 'combat' });
registerGame({ slug: 'kiitos', name: 'Kiitos', category: 'word', minPlayers: 2, maxPlayers: 4, minOpponents: 1, maxOpponents: 3, iconFrame: 47 });
registerGame({ slug: 'monopoly', name: 'Monopoly', category: 'tabletop', minPlayers: 2, maxPlayers: 4, minOpponents: 1, maxOpponents: 3, iconFrame: 48, defaultPlayfield: 'cherry' });
registerGame({ slug: 'triominoes', name: 'Tri-Ominoes', category: 'word', minPlayers: 2, maxPlayers: 4, minOpponents: 1, maxOpponents: 3, iconFrame: 49 });
registerGame({ slug: 'freecell', name: 'Freecell', category: 'cards', cardGame: true, minPlayers: 1, maxPlayers: 1, minOpponents: 0, maxOpponents: 0, iconFrame: 50 });
registerGame({ slug: 'rushhour', name: 'Rush Hour', category: 'logic', minPlayers: 1, maxPlayers: 1, minOpponents: 0, maxOpponents: 0, hasTutorial: true, iconFrame: 51 });
registerGame({ slug: 'hexsweeper', name: 'Hexsweeper', category: 'logic', minPlayers: 1, maxPlayers: 1, minOpponents: 0, maxOpponents: 0, iconFrame: 52 });
registerGame({ slug: 'puddingmonsters', name: 'Jell-o Monsters', category: 'logic', minPlayers: 1, maxPlayers: 1, minOpponents: 0, maxOpponents: 0, hasTutorial: true, iconFrame: 53 });
registerGame({ slug: 'shift', name: 'Shift', category: 'logic', minPlayers: 1, maxPlayers: 1, minOpponents: 0, maxOpponents: 0, iconFrame: 55 });
registerGame({ slug: 'blockfighter', name: 'Block Fighter', category: 'arcade-console-pc', minPlayers: 1, maxPlayers: 1, minOpponents: 0, maxOpponents: 0, hasTutorial: true, iconFrame: 56 });
registerGame({ slug: 'mahjongmatch', name: 'Mahjong Match', category: 'logic', minPlayers: 1, maxPlayers: 1, minOpponents: 0, maxOpponents: 0, iconFrame: 57 });
registerGame({ slug: 'mahjong', name: 'Mahjong', category: 'tabletop', minPlayers: 4, maxPlayers: 4, minOpponents: 3, maxOpponents: 3, hasTutorial: true, iconFrame: 58 });
registerGame({ slug: 'jewelquest', name: 'Jewel Quest', category: 'logic', minPlayers: 1, maxPlayers: 1, minOpponents: 0, maxOpponents: 0, hasTutorial: true, iconFrame: 59 });
registerGame({ slug: 'zuma', name: 'Zuma', category: 'arcade-console-pc', minPlayers: 1, maxPlayers: 1, minOpponents: 0, maxOpponents: 0, iconFrame: 60 });
registerGame({ slug: 'bejeweled', name: 'Bejeweled Blitz', category: 'arcade-console-pc', minPlayers: 1, maxPlayers: 1, minOpponents: 0, maxOpponents: 0, iconFrame: 61 });
registerGame({ slug: 'minimotorways', name: 'Mini Motorways', category: 'arcade-console-pc', minPlayers: 1, maxPlayers: 1, minOpponents: 0, maxOpponents: 0, iconFrame: 62 });
registerGame({ slug: 'slots', name: 'Slot Machines', category: 'casino', minPlayers: 1, maxPlayers: 1, minOpponents: 0, maxOpponents: 0, iconFrame: 63 });
registerGame({ slug: 'cribbage', name: 'Cribbage', category: 'cards', cardGame: true, minPlayers: 2, maxPlayers: 2, minOpponents: 1, maxOpponents: 1, hasTutorial: true, iconFrame: 64 });
registerGame({ slug: 'canasta', name: 'Canasta', category: 'cards', cardGame: true, minPlayers: 4, maxPlayers: 4, minOpponents: 3, maxOpponents: 3, hasTutorial: true, iconFrame: 65 });
registerGame({ slug: 'dotlink', name: 'Dot Link', category: 'logic', minPlayers: 1, maxPlayers: 1, minOpponents: 0, maxOpponents: 0, iconFrame: 66 });
registerGame({ slug: '2048', name: '2048', category: 'logic', minPlayers: 1, maxPlayers: 1, minOpponents: 0, maxOpponents: 0, iconFrame: 67 });
registerGame({ slug: 'rummikub', name: 'Rummikub', category: 'cards', cardGame: true, minPlayers: 2, maxPlayers: 4, minOpponents: 1, maxOpponents: 3, hasTutorial: true, iconFrame: 68 });
registerGame({ slug: 'ginrummy', name: 'Gin Rummy', category: 'cards', cardGame: true, minPlayers: 2, maxPlayers: 4, minOpponents: 1, maxOpponents: 3, hasTutorial: false, iconFrame: 69 });
registerGame({ slug: 'risk', name: 'Risk', category: 'tabletop', minPlayers: 2, maxPlayers: 6, minOpponents: 1, maxOpponents: 5, defaultOpponents: 3, hasTutorial: true, iconFrame: 54, defaultPlayfield: 'combat' });
registerGame({ slug: 'geniussquare', name: 'Genius Square', category: 'logic', minPlayers: 1, maxPlayers: 2, minOpponents: 1, maxOpponents: 1, iconFrame: 70 });
registerGame({ slug: 'katamino', name: 'Katamino', category: 'logic', minPlayers: 1, maxPlayers: 1, minOpponents: 0, maxOpponents: 0, iconFrame: 71 });
registerGame({ slug: 'bookwork', name: 'Bookwork', category: 'word', minPlayers: 1, maxPlayers: 1, minOpponents: 0, maxOpponents: 0, iconFrame: 72 });
registerGame({ slug: 'paigow', name: 'Pai Gow Poker', category: 'casino', cardGame: true, minPlayers: 1, maxPlayers: 5, minOpponents: 0, maxOpponents: 4, defaultOpponents: 4, iconFrame: 73 });
registerGame({ slug: 'spireclimb', name: 'Spire Climb', category: 'cards', cardGame: true, minPlayers: 1, maxPlayers: 1, minOpponents: 0, maxOpponents: 0, hasTutorial: true, iconFrame: 74 });
registerGame({ slug: 'azul', name: 'Azul', category: 'tabletop', minPlayers: 2, maxPlayers: 4, minOpponents: 1, maxOpponents: 3, defaultOpponents: 3, hasTutorial: true, iconFrame: 75, defaultPlayfield: 'cherry' });
registerGame({ slug: 'jumble', name: 'Jumble', category: 'word', minPlayers: 1, maxPlayers: 1, minOpponents: 0, maxOpponents: 0, iconFrame: 76 });
registerGame({ slug: 'dungeonboss', name: 'Dungeon Boss', category: 'cards', cardGame: true, minPlayers: 2, maxPlayers: 4, minOpponents: 1, maxOpponents: 3, defaultOpponents: 3, hasTutorial: true, iconFrame: 77, defaultPlayfield: 'fantasy' });
registerGame({ slug: 'swdbg', name: 'Star Wars', category: 'cards', cardGame: true, minPlayers: 2, maxPlayers: 2, minOpponents: 1, maxOpponents: 1, hasTutorial: true, iconFrame: 78, defaultPlayfield: 'stars' });
registerGame({ slug: 'balatro', name: 'Balatro', category: 'cards', cardGame: true, minPlayers: 1, maxPlayers: 1, minOpponents: 0, maxOpponents: 0, hasTutorial: true, iconFrame: 79 });
registerGame({ slug: 'peggle', name: 'Peggle', category: 'arcade-console-pc', minPlayers: 1, maxPlayers: 1, minOpponents: 0, maxOpponents: 0, iconFrame: 80 });
registerGame({ slug: 'coloradodefense', name: 'Colorado Defense', category: 'arcade-console-pc', minPlayers: 1, maxPlayers: 1, minOpponents: 0, maxOpponents: 0, iconFrame: 81 });
registerGame({ slug: 'starcontrol', name: 'Star Control', category: 'arcade-console-pc', minPlayers: 1, maxPlayers: 2, minOpponents: 0, maxOpponents: 0, iconFrame: 82 });
registerGame({ slug: 'civilization', name: 'Civilization', category: 'arcade-console-pc', minPlayers: 1, maxPlayers: 1, minOpponents: 0, maxOpponents: 0, iconFrame: 83 });
registerGame({ slug: 'tempest', name: 'Tempest', category: 'arcade-console-pc', minPlayers: 1, maxPlayers: 1, minOpponents: 0, maxOpponents: 0, iconFrame: 84 });
registerGame({ slug: 'superkart', name: 'Super Kart', category: 'arcade-console-pc', minPlayers: 1, maxPlayers: 1, minOpponents: 0, maxOpponents: 0, iconFrame: 85 });
registerGame({ slug: 'advancewars', name: 'Advance Wars', category: 'arcade-console-pc', minPlayers: 1, maxPlayers: 1, minOpponents: 0, maxOpponents: 0, iconFrame: 86 });
registerGame({ slug: 'tetrisattack', name: 'Tetris Attack', category: 'arcade-console-pc', minPlayers: 1, maxPlayers: 1, minOpponents: 0, maxOpponents: 0, iconFrame: 87 });
registerGame({ slug: 'totalannihilation', name: 'Total Annihilation', category: 'arcade-console-pc', minPlayers: 1, maxPlayers: 1, minOpponents: 0, maxOpponents: 0, iconFrame: 88 });