SZUT/casino
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refactor: remove unused blackjack split funcionality
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This commit is contained in:
Phan Huy Tran 2025-05-28 10:21:21 +02:00
commit c277b89ffc
4 changed files with 11 additions and 105 deletions
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7
backend/src/main/java/de/szut/casino/blackjack/BlackJackGameController.java
View file

@ -57,13 +57,6 @@ public class BlackJackGameController {
return ResponseEntity.ok(blackJackService.doubleDown(game));
}
@PostMapping("/blackjack/{id}/split")
public ResponseEntity<Object> split(@PathVariable Long id) {
BlackJackGameEntity game = getBlackJackGame(id);
return ResponseEntity.ok(blackJackService.split(game));
}
@PostMapping("/blackjack/start")
public ResponseEntity<Object> createBlackJackGame(@RequestBody @Valid BetDto betDto) {
Optional<UserEntity> optionalUser = userService.getCurrentUser();

11
backend/src/main/java/de/szut/casino/blackjack/BlackJackGameEntity.java
View file

@ -51,15 +51,4 @@ public class BlackJackGameEntity {
@JsonManagedReference
@SQLRestriction("card_type = 'DEALER'")
private List<CardEntity> dealerCards = new ArrayList<>();
@OneToMany(mappedBy = "game", cascade = CascadeType.ALL, orphanRemoval = true)
@JsonManagedReference
@SQLRestriction("card_type = 'PLAYER_SPLIT'")
private List<CardEntity> playerSplitCards = new ArrayList<>();
@Column(name = "split_bet")
private BigDecimal splitBet;
@Column(name = "is_split")
private boolean isSplit;
}

96
backend/src/main/java/de/szut/casino/blackjack/BlackJackService.java
View file

@ -2,8 +2,8 @@ package de.szut.casino.blackjack;
import de.szut.casino.user.UserEntity;
import de.szut.casino.user.UserRepository;
import jakarta.transaction.Transactional;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import java.math.BigDecimal;
import java.util.List;
@ -24,7 +24,6 @@ public class BlackJackService {
return blackJackGameRepository.findById(id).orElse(null);
}
@Transactional
public BlackJackGameEntity createBlackJackGame(UserEntity user, BigDecimal betAmount) {
BlackJackGameEntity game = new BlackJackGameEntity();
game.setUser(user);
@ -85,36 +84,6 @@ public class BlackJackService {
return game;
}
@Transactional
public BlackJackGameEntity split(BlackJackGameEntity game) {
if (game.getState() != BlackJackState.IN_PROGRESS ||
game.getPlayerCards().size() != 2 ||
game.isSplit() ||
!game.getPlayerCards().get(0).getRank().equals(game.getPlayerCards().get(1).getRank())) {
return game;
}
UserEntity user = getUserWithFreshData(game.getUser());
BigDecimal splitBet = game.getBet();
if (user.getBalance().compareTo(splitBet) < 0) {
return game;
}
deductBetFromBalance(user, splitBet);
game.setSplitBet(splitBet);
game.setSplit(true);
CardEntity card = game.getPlayerCards().remove(1);
card.setCardType(CardType.PLAYER_SPLIT);
game.getPlayerSplitCards().add(card);
dealCardToPlayer(game);
dealCardToSplitHand(game);
return processGameBasedOnState(game);
}
private BlackJackGameEntity processGameBasedOnState(BlackJackGameEntity game) {
if (game.getState() != BlackJackState.IN_PROGRESS) {
this.blackJackGameRepository.delete(game);
@ -154,33 +123,13 @@ public class BlackJackService {
}
}
private void dealCardToSplitHand(BlackJackGameEntity game) {
CardEntity card = drawCardFromDeck(game);
card.setCardType(CardType.PLAYER_SPLIT);
game.getPlayerSplitCards().add(card);
}
private void updateGameStateAndBalance(BlackJackGameEntity game) {
if (game.isSplit()) {
int mainHandValue = calculateHandValue(game.getPlayerCards());
int splitHandValue = calculateHandValue(game.getPlayerSplitCards());
game.setState(getState(game));
if (mainHandValue > 21 && splitHandValue > 21) {
game.setState(BlackJackState.PLAYER_LOST);
updateUserBalance(game, false);
} else if (mainHandValue <= 21 && splitHandValue <= 21) {
game.setState(BlackJackState.IN_PROGRESS);
} else {
game.setState(BlackJackState.IN_PROGRESS);
}
} else {
game.setState(getState(game));
if (game.getState() == BlackJackState.PLAYER_WON) {
updateUserBalance(game, true);
} else if (game.getState() == BlackJackState.PLAYER_LOST) {
updateUserBalance(game, false);
}
if (game.getState() == BlackJackState.PLAYER_WON) {
updateUserBalance(game, true);
} else if (game.getState() == BlackJackState.PLAYER_LOST) {
updateUserBalance(game, false);
}
}
@ -205,40 +154,15 @@ public class BlackJackService {
userRepository.save(user);
}
@Transactional
protected void updateUserBalance(BlackJackGameEntity game, boolean isWin) {
UserEntity user = getUserWithFreshData(game.getUser());
BigDecimal totalBet = game.getBet();
BigDecimal balance = user.getBalance();
if (game.isSplit()) {
totalBet = totalBet.add(game.getSplitBet());
if (isWin) {
int mainHandValue = calculateHandValue(game.getPlayerCards());
int splitHandValue = calculateHandValue(game.getPlayerSplitCards());
int dealerValue = calculateHandValue(game.getDealerCards());
if (mainHandValue <= 21 && (dealerValue > 21 || mainHandValue > dealerValue)) {
balance = balance.add(game.getBet().multiply(BigDecimal.valueOf(2)));
} else if (mainHandValue == dealerValue) {
balance = balance.add(game.getBet());
}
if (splitHandValue <= 21 && (dealerValue > 21 || splitHandValue > dealerValue)) {
balance = balance.add(game.getSplitBet().multiply(BigDecimal.valueOf(2)));
} else if (splitHandValue == dealerValue) {
balance = balance.add(game.getSplitBet());
}
} else if (game.getState() == BlackJackState.DRAW) {
balance = balance.add(totalBet);
}
} else {
if (isWin) {
balance = balance.add(totalBet.multiply(BigDecimal.valueOf(2)));
} else if (game.getState() == BlackJackState.DRAW) {
balance = balance.add(totalBet);
}
if (isWin) {
balance = balance.add(totalBet.multiply(BigDecimal.valueOf(2)));
} else if (game.getState() == BlackJackState.DRAW) {
balance = balance.add(totalBet);
}
user.setBalance(balance);

2
backend/src/main/java/de/szut/casino/blackjack/CardEntity.java
View file

@ -36,5 +36,5 @@ public class CardEntity {
}
enum CardType {
DECK, PLAYER, DEALER, PLAYER_SPLIT
DECK, PLAYER, DEALER
}