SZUT/casino
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refactor: extract common code to method
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This commit is contained in:
Phan Huy Tran 2025-05-22 12:47:27 +02:00
commit 5ad0740902
4 changed files with 37 additions and 60 deletions
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77
backend/src/main/java/de/szut/casino/blackjack/BlackJackGameController.java
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@ -1,6 +1,7 @@
package de.szut.casino.blackjack;
import de.szut.casino.exceptionHandling.exceptions.InsufficientFundsException;
import de.szut.casino.exceptionHandling.exceptions.UserBlackJackGameMismatchException;
import de.szut.casino.exceptionHandling.exceptions.UserNotFoundException;
import de.szut.casino.shared.dto.BetDto;
import de.szut.casino.shared.service.BalanceService;
@ -30,85 +31,35 @@ public class BlackJackGameController {
@GetMapping("/blackjack/{id}")
public ResponseEntity<Object> getGame(@PathVariable Long id) {
Optional<UserEntity> optionalUser = userService.getCurrentUser();
if (optionalUser.isEmpty()) {
throw new UserNotFoundException();
}
UserEntity user = optionalUser.get();
BlackJackGameEntity game = blackJackService.getBlackJackGame(id);
if (game == null || !Objects.equals(game.getUserId(), user.getId())) {
return ResponseEntity.notFound().build();
}
BlackJackGameEntity game = getUserGame(id);
return ResponseEntity.ok(game);
}
@PostMapping("/blackjack/{id}/hit")
public ResponseEntity<Object> hit(@PathVariable Long id) {
Optional<UserEntity> optionalUser = userService.getCurrentUser();
if (optionalUser.isEmpty()) {
throw new UserNotFoundException();
}
UserEntity user = optionalUser.get();
BlackJackGameEntity game = blackJackService.getBlackJackGame(id);
if (game == null || !Objects.equals(game.getUserId(), user.getId())) {
return ResponseEntity.notFound().build();
}
BlackJackGameEntity game = getUserGame(id);
return ResponseEntity.ok(blackJackService.hit(game));
}
@PostMapping("/blackjack/{id}/stand")
public ResponseEntity<Object> stand(@PathVariable Long id) {
Optional<UserEntity> optionalUser = userService.getCurrentUser();
if (optionalUser.isEmpty()) {
throw new UserNotFoundException();
}
UserEntity user = optionalUser.get();
BlackJackGameEntity game = blackJackService.getBlackJackGame(id);
if (game == null || !Objects.equals(game.getUserId(), user.getId())) {
return ResponseEntity.notFound().build();
}
BlackJackGameEntity game = getUserGame(id);
return ResponseEntity.ok(blackJackService.stand(game));
}
@PostMapping("/blackjack/{id}/doubleDown")
public ResponseEntity<Object> doubleDown(@PathVariable Long id) {
Optional<UserEntity> optionalUser = userService.getCurrentUser();
if (optionalUser.isEmpty()) {
throw new UserNotFoundException();
}
UserEntity user = optionalUser.get();
BlackJackGameEntity game = blackJackService.getBlackJackGame(id);
if (game == null || !Objects.equals(game.getUserId(), user.getId())) {
return ResponseEntity.notFound().build();
}
BlackJackGameEntity game = getUserGame(id);
return ResponseEntity.ok(blackJackService.doubleDown(game));
}
@PostMapping("/blackjack/{id}/split")
public ResponseEntity<Object> split(@PathVariable Long id) {
Optional<UserEntity> optionalUser = userService.getCurrentUser();
if (optionalUser.isEmpty()) {
throw new UserNotFoundException();
}
UserEntity user = optionalUser.get();
BlackJackGameEntity game = blackJackService.getBlackJackGame(id);
if (game == null || !Objects.equals(game.getUserId(), user.getId())) {
return ResponseEntity.notFound().build();
}
BlackJackGameEntity game = getUserGame(id);
return ResponseEntity.ok(blackJackService.split(game));
}
@ -129,4 +80,20 @@ public class BlackJackGameController {
return ResponseEntity.ok(blackJackService.createBlackJackGame(user, betDto.getBetAmount()));
}
private BlackJackGameEntity getUserGame(Long gameId) {
Optional<UserEntity> optionalUser = userService.getCurrentUser();
if (optionalUser.isEmpty()) {
throw new UserNotFoundException();
}
UserEntity user = optionalUser.get();
BlackJackGameEntity game = blackJackService.getBlackJackGame(gameId);
if (game == null || !Objects.equals(game.getUserId(), user.getId())) {
throw new UserBlackJackGameMismatchException(gameId);
}
return game;
}
}

6
backend/src/main/java/de/szut/casino/blackjack/BlackJackService.java
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@ -124,10 +124,6 @@ public class BlackJackService {
return blackJackGameRepository.save(game);
}
private BlackJackGameEntity refreshGameState(BlackJackGameEntity game) {
return blackJackGameRepository.findById(game.getId()).orElse(game);
}
private UserEntity getUserWithFreshData(UserEntity user) {
return userRepository.findById(user.getId()).orElse(user);
}
@ -210,7 +206,7 @@ public class BlackJackService {
}
@Transactional
private void updateUserBalance(BlackJackGameEntity game, boolean isWin) {
protected void updateUserBalance(BlackJackGameEntity game, boolean isWin) {
UserEntity user = getUserWithFreshData(game.getUser());
BigDecimal totalBet = game.getBet();
BigDecimal balance = user.getBalance();

7
backend/src/main/java/de/szut/casino/exceptionHandling/GlobalExceptionHandler.java
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@ -2,6 +2,7 @@ package de.szut.casino.exceptionHandling;
import de.szut.casino.exceptionHandling.exceptions.EmailNotVerifiedException;
import de.szut.casino.exceptionHandling.exceptions.InsufficientFundsException;
import de.szut.casino.exceptionHandling.exceptions.UserBlackJackGameMismatchException;
import de.szut.casino.exceptionHandling.exceptions.UserNotFoundException;
import jakarta.persistence.EntityExistsException;
import org.springframework.http.HttpStatus;
@ -38,4 +39,10 @@ public class GlobalExceptionHandler {
ErrorDetails errorDetails = new ErrorDetails(new Date(), ex.getMessage(), request.getDescription(false));
return new ResponseEntity<>(errorDetails, HttpStatus.UNAUTHORIZED);
}
@ExceptionHandler(UserBlackJackGameMismatchException.class)
public ResponseEntity<?> handleUserBlackJackGameMismatchException(UserBlackJackGameMismatchException ex, WebRequest request) {
ErrorDetails errorDetails = new ErrorDetails(new Date(), ex.getMessage(), request.getDescription(false));
return new ResponseEntity<>(errorDetails, HttpStatus.NOT_FOUND);
}
}

7
backend/src/main/java/de/szut/casino/exceptionHandling/exceptions/UserBlackJackGameMismatchException.java Normal file
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@ -0,0 +1,7 @@
package de.szut.casino.exceptionHandling.exceptions;
public class UserBlackJackGameMismatchException extends RuntimeException {
public UserBlackJackGameMismatchException(Long gameId) {
super(String.format("Blackjack game with ID %d not found or does not belong to the current user.", gameId));
}
}