fix: fix playercards, dealercards and deck referencing the same database entity

backend/requests/blackjack.http

@@ -7,6 +7,6 @@ Content-Type: application/json
 }
 
 ###
-POST http://localhost:8080/blackjack/52/hit
+POST http://localhost:8080/blackjack/103/hit
 Authorization: Bearer {{token}}
 

backend/src/main/java/de/szut/casino/blackjack/BlackJackGameController.java

@@ -40,10 +40,7 @@ public class BlackJackGameController {
             return ResponseEntity.notFound().build();
         }
 
-        // TODO validate that hit is a valid action
-
-        blackJackService.hit(game);
-        return ResponseEntity.ok(game);
+        return ResponseEntity.ok(blackJackService.hit(game));
     }
 
     @PostMapping("/blackjack/start")

backend/src/main/java/de/szut/casino/blackjack/BlackJackGameEntity.java

@@ -8,6 +8,7 @@ import lombok.AllArgsConstructor;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
 import lombok.Setter;
+import org.hibernate.annotations.SQLRestriction;
 
 import java.math.BigDecimal;
 import java.util.ArrayList;
@@ -39,13 +40,16 @@ public class BlackJackGameEntity {
 
     @OneToMany(mappedBy = "game", cascade = CascadeType.ALL, orphanRemoval = true)
     @JsonIgnore
+    @SQLRestriction("card_type = 'DECK'")
     private List<CardEntity> deck = new ArrayList<>();
 
     @OneToMany(mappedBy = "game", cascade = CascadeType.ALL, orphanRemoval = true)
     @JsonManagedReference
+    @SQLRestriction("card_type = 'PLAYER'")
     private List<CardEntity> playerCards = new ArrayList<>();
 
     @OneToMany(mappedBy = "game", cascade = CascadeType.ALL, orphanRemoval = true)
     @JsonManagedReference
+    @SQLRestriction("card_type = 'DEALER'")
     private List<CardEntity> dealerCards = new ArrayList<>();
 }

backend/src/main/java/de/szut/casino/blackjack/BlackJackService.java

@@ -5,10 +5,8 @@ import de.szut.casino.user.UserRepository;
 import org.springframework.stereotype.Service;
 
 import java.math.BigDecimal;
-import java.util.ArrayList;
 import java.util.List;
 import java.util.Optional;
-import java.util.List;
 import java.util.Random;
 
 @Service
@@ -36,10 +34,12 @@ public class BlackJackService {
 
         for (int i = 0; i < 2; i++) {
             CardEntity playerCard = drawCardFromDeck(game);
+            playerCard.setCardType(CardType.PLAYER);
             game.getPlayerCards().add(playerCard);
         }
 
         CardEntity dealerCard = drawCardFromDeck(game);
+        dealerCard.setCardType(CardType.DEALER);
         game.getDealerCards().add(dealerCard);
 
         game.setState(getState(game));
@@ -53,11 +53,12 @@ public class BlackJackService {
 
     public BlackJackGameEntity hit(BlackJackGameEntity game) {
         CardEntity drawnCard = drawCardFromDeck(game);
-        List<CardEntity> playerCards = game.getPlayerCards();
+        drawnCard.setCardType(CardType.PLAYER);
+        game.getPlayerCards().add(drawnCard);
 
-        playerCards.add(drawnCard);
-        blackJackGameRepository.save(game);
-        return game;
+        game.setState(getState(game));
+
+        return blackJackGameRepository.save(game);
     }
 
     private void initializeDeck(BlackJackGameEntity game) {
@@ -67,6 +68,7 @@ public class BlackJackService {
                 card.setGame(game);
                 card.setSuit(suit);
                 card.setRank(rank);
+                card.setCardType(CardType.DECK);
                 game.getDeck().add(card);
             }
         }

backend/src/main/java/de/szut/casino/blackjack/CardEntity.java

@@ -1,6 +1,5 @@
 package de.szut.casino.blackjack;
 
-
 import com.fasterxml.jackson.annotation.JsonBackReference;
 import com.fasterxml.jackson.annotation.JsonIgnore;
 import jakarta.persistence.*;
@@ -30,4 +29,11 @@ public class CardEntity {
 
     @Enumerated(EnumType.STRING)
     private Rank rank;
+
+    @Enumerated(EnumType.STRING)
+    private CardType cardType;
+}
+
+enum CardType {
+    DECK, PLAYER, DEALER
 }