Initial commit from your app

src/utils/deckValidation.ts

@@ -0,0 +1,89 @@
+import { Deck } from '../types';
+
+interface DeckValidation {
+  isValid: boolean;
+  errors: string[];
+}
+
+const FORMAT_RULES = {
+  standard: {
+    minCards: 60,
+    maxCards: undefined,
+    maxCopies: 4,
+  },
+  modern: {
+    minCards: 60,
+    maxCards: undefined,
+    maxCopies: 4,
+  },
+  commander: {
+    minCards: 100,
+    maxCards: 100,
+    maxCopies: 1,
+    requiresCommander: true,
+  },
+  legacy: {
+    minCards: 60,
+    maxCards: undefined,
+    maxCopies: 4,
+  },
+  vintage: {
+    minCards: 60,
+    maxCards: undefined,
+    maxCopies: 4,
+  },
+  pauper: {
+    minCards: 60,
+    maxCards: undefined,
+    maxCopies: 4,
+  },
+};
+
+export function validateDeck(deck: Deck): DeckValidation {
+  console.log("deck in validator", deck);
+  const rules = FORMAT_RULES[deck.format as keyof typeof FORMAT_RULES];
+  const errors: string[] = [];
+  
+  // Count total cards
+  const totalCards = deck.cards.reduce((acc, curr) => acc + curr.quantity, 0);
+  
+  // Check minimum cards
+  if (totalCards < rules.minCards) {
+    errors.push(`Deck must contain at least ${rules.minCards} cards`);
+  }
+  
+  // Check maximum cards
+  if (rules.maxCards && totalCards > rules.maxCards) {
+    errors.push(`Deck must not contain more than ${rules.maxCards} cards`);
+  }
+  
+  // Check card copies
+  const cardCounts = new Map<string, number>();
+  for (const element of deck.cards) {
+    const {card, quantity} = element;
+    console.log("card", card);
+    const currentCount = cardCounts.get(card.id) || 0;
+    cardCounts.set(card.id, currentCount + quantity);
+  }
+  
+  cardCounts.forEach((count, cardName) => {
+    if (count > rules.maxCopies) {
+      errors.push(`${cardName} has too many copies (max ${rules.maxCopies})`);
+    }
+  });
+  
+  // Check commander requirement
+  if (rules.requiresCommander) {
+    const hasCommander = deck.cards.some(({ card }) =>
+      card.type_line?.toLowerCase().includes('legendary creature')
+    );
+    if (!hasCommander) {
+      errors.push('Deck must have a legendary creature as commander');
+    }
+  }
+  
+  return {
+    isValid: errors.length === 0,
+    errors,
+  };
+}