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feat: Subtract user balance, persist game

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Phan Huy Tran 2025-03-26 13:50:56 +01:00 • committed by Jan K9f
parent b2b0bb2f44
commit 64e41b663e
7 changed files with 61 additions and 142 deletions
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44
backend/src/main/java/de/szut/casino/blackjack/BlackJackGameController.java
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@ -2,13 +2,11 @@ package de.szut.casino.blackjack;
import de.szut.casino.blackjack.dto.CreateBlackJackGameDto;
import de.szut.casino.user.UserEntity;
import de.szut.casino.user.UserRepository;
import de.szut.casino.user.UserService;
import de.szut.casino.user.dto.CreateUserDto;
import de.szut.casino.user.dto.GetUserDto;
import jakarta.validation.Valid;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
@ -18,33 +16,53 @@ import org.springframework.web.bind.annotation.RestController;
import java.math.BigDecimal;
import java.util.HashMap;
import java.util.Map;
import java.util.Optional;
@Slf4j
@RestController
public class BlackJackGameController {
@Autowired
private UserService userService;
private final UserService userService;
private final BlackJackGameRepository blackJackGameRepository;
private final UserRepository userRepository;
public BlackJackGameController(UserService userService, BlackJackGameRepository blackJackGameRepository, UserRepository userRepository) {
this.userService = userService;
this.blackJackGameRepository = blackJackGameRepository;
this.userRepository = userRepository;
}
@PostMapping("/blackjack/start")
public ResponseEntity<?> createBlackJackGame(@RequestBody @Valid CreateBlackJackGameDto createBlackJackGameDto, @RequestHeader("Authorization") String token) {
GetUserDto getUserDto = userService.getCurrentUser(token);
BigDecimal balance = getUserDto.getBalance();
public ResponseEntity<Object> createBlackJackGame(@RequestBody @Valid CreateBlackJackGameDto createBlackJackGameDto, @RequestHeader("Authorization") String token) {
Optional<UserEntity> optionalUser = userService.getCurrentUser(token);
if (createBlackJackGameDto.getBetAmount().compareTo(BigDecimal.ZERO) <= 0) {
if (optionalUser.isEmpty()) {
return ResponseEntity.notFound().build();
}
UserEntity user = optionalUser.get();
BigDecimal balance = user.getBalance();
BigDecimal betAmount = createBlackJackGameDto.getBetAmount();
if (betAmount.compareTo(BigDecimal.ZERO) <= 0) {
Map<String, String> errorResponse = new HashMap<>();
errorResponse.put("error", "Invalid bet amount");
return ResponseEntity.badRequest().body(errorResponse);
}
if (createBlackJackGameDto.getBetAmount().compareTo(balance) > 0) {
if (betAmount.compareTo(balance) > 0) {
Map<String, String> errorResponse = new HashMap<>();
errorResponse.put("error", "Insufficient funds");
return ResponseEntity.badRequest().body(errorResponse);
}
BlackJackGameEntity game = new BlackJackGameEntity();
game.setBet(betAmount);
user.setBalance(user.getBalance().subtract(betAmount));
return null;
}
userRepository.save(user);
blackJackGameRepository.save(game);
return ResponseEntity.ok(game); }
}

10
backend/src/main/java/de/szut/casino/blackjack/BlackJackGameEntity.java
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@ -3,21 +3,23 @@ package de.szut.casino.blackjack;
import jakarta.persistence.Entity;
import jakarta.persistence.GeneratedValue;
import jakarta.persistence.Id;
import lombok.AllArgsConstructor;
import lombok.Getter;
import lombok.NoArgsConstructor;
import lombok.Setter;
import java.math.BigDecimal;
import java.util.ArrayList;
@Entity
@Getter
@Setter
@AllArgsConstructor
@NoArgsConstructor
public class BlackJackGameEntity {
@Id
@GeneratedValue
private Long id;
private ArrayList<Card> playerHand;
private ArrayList<Card> dealerHand;
private ArrayList<Card> deck;
private String state;
private int bet;
private BigDecimal bet;
}

12
backend/src/main/java/de/szut/casino/blackjack/BlackJackGameRepository.java Normal file
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@ -0,0 +1,12 @@
package de.szut.casino.blackjack;
import de.szut.casino.user.UserEntity;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.jpa.repository.Query;
import org.springframework.stereotype.Service;
import java.util.Optional;
@Service
public interface BlackJackGameRepository extends JpaRepository<BlackJackGameEntity, Long> {
}

2
backend/src/main/java/de/szut/casino/user/UserController.java
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@ -44,7 +44,7 @@ public class UserController {
@GetMapping("/user")
public ResponseEntity<GetUserDto> getCurrentUser(@RequestHeader("Authorization") String token) {
GetUserDto userData = userService.getCurrentUser(token);
GetUserDto userData = userService.getCurrentUserAsDto(token);
if (userData == null) {
return ResponseEntity.notFound().build();

11
backend/src/main/java/de/szut/casino/user/UserService.java
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@ -38,15 +38,24 @@ public class UserService {
return user.map(userEntity -> mappingService.mapToGetUserDto(userEntity)).orElse(null);
}
public GetUserDto getCurrentUser(String token) {
public GetUserDto getCurrentUserAsDto(String token) {
KeycloakUserDto userData = getKeycloakUserInfo(token);
if (userData == null) {
return null;
}
Optional<UserEntity> user = this.userRepository.findOneByKeycloakId(userData.getSub());
return user.map(userEntity -> mappingService.mapToGetUserDto(userEntity)).orElse(null);
}
public Optional<UserEntity> getCurrentUser(String token) {
KeycloakUserDto userData = getKeycloakUserInfo(token);
if (userData == null) {
return Optional.empty();
}
return this.userRepository.findOneByKeycloakId(userData.getSub());
}
private KeycloakUserDto getKeycloakUserInfo(String token) {