refactor: remove unused imports and clean up code

backend/src/main/java/de/szut/casino/CasinoApplication.java

@@ -1,20 +1,10 @@
 package de.szut.casino;
 
-import de.szut.casino.lootboxes.LootBoxEntity;
-import de.szut.casino.lootboxes.LootBoxRepository;
-import de.szut.casino.lootboxes.RewardEntity;
-import de.szut.casino.lootboxes.RewardRepository;
-import org.springframework.boot.CommandLineRunner;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.context.annotation.Bean;
 import org.springframework.web.client.RestTemplate;
 
-import java.math.BigDecimal;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.List;
-
 @SpringBootApplication
 public class CasinoApplication {
 

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

@@ -1,12 +1,8 @@
 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> {
 }

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

@@ -7,7 +7,6 @@ import org.springframework.transaction.annotation.Transactional;
 
 import java.math.BigDecimal;
 import java.util.List;
-import java.util.Optional;
 import java.util.Random;
 
 @Service

backend/src/main/java/de/szut/casino/deposit/DepositController.java

@@ -8,7 +8,6 @@ import de.szut.casino.deposit.dto.AmountDto;
 import de.szut.casino.deposit.dto.SessionIdDto;
 import de.szut.casino.user.UserEntity;
 import de.szut.casino.user.UserRepository;
-import de.szut.casino.user.UserService;
 import de.szut.casino.user.dto.KeycloakUserDto;
 import jakarta.validation.Valid;
 import org.springframework.beans.factory.annotation.Value;
@@ -16,7 +15,10 @@ import org.springframework.http.HttpEntity;
 import org.springframework.http.HttpHeaders;
 import org.springframework.http.HttpMethod;
 import org.springframework.http.ResponseEntity;
-import org.springframework.web.bind.annotation.*;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestHeader;
+import org.springframework.web.bind.annotation.RestController;
 import org.springframework.web.client.RestTemplate;
 
 import java.util.Optional;

backend/src/main/java/de/szut/casino/deposit/TransactionEntity.java

@@ -5,7 +5,6 @@ import jakarta.persistence.*;
 import lombok.Getter;
 import lombok.Setter;
 
-import java.math.BigDecimal;
 import java.util.Date;
 
 @Setter

backend/src/main/java/de/szut/casino/deposit/TransactionService.java

@@ -7,7 +7,6 @@ import de.szut.casino.user.UserEntity;
 import de.szut.casino.user.UserRepository;
 import org.springframework.stereotype.Service;
 
-import java.util.Objects;
 import java.util.Optional;
 
 @Service

backend/src/main/java/de/szut/casino/deposit/WebhookController.java

@@ -1,26 +1,21 @@
 package de.szut.casino.deposit;
 
-import com.fasterxml.jackson.core.JsonProcessingException;
-
 import com.stripe.Stripe;
-import com.stripe.exception.SignatureVerificationException;
 import com.stripe.exception.StripeException;
-import com.stripe.model.*;
+import com.stripe.model.Event;
 import com.stripe.model.checkout.Session;
 import com.stripe.net.Webhook;
-import com.stripe.param.checkout.SessionRetrieveParams;
-import de.szut.casino.user.UserEntity;
-import de.szut.casino.user.UserRepository;
 import jakarta.annotation.PostConstruct;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.http.ResponseEntity;
-import org.springframework.web.bind.annotation.*;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestHeader;
+import org.springframework.web.bind.annotation.RestController;
 
-import java.math.BigDecimal;
 import java.util.Objects;
-import java.util.Optional;
 
 @RestController
 public class WebhookController {

backend/src/main/java/de/szut/casino/lootboxes/LootBoxEntity.java

@@ -1,15 +1,9 @@
 package de.szut.casino.lootboxes;
 
-import com.fasterxml.jackson.annotation.JsonBackReference;
-import com.fasterxml.jackson.annotation.JsonIgnore;
-import com.fasterxml.jackson.annotation.JsonManagedReference;
-import de.szut.casino.blackjack.CardEntity;
 import jakarta.persistence.*;
-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;

backend/src/main/java/de/szut/casino/lootboxes/RewardEntity.java

@@ -1,7 +1,6 @@
 package de.szut.casino.lootboxes;
 
 import com.fasterxml.jackson.annotation.JsonBackReference;
-import com.fasterxml.jackson.annotation.JsonManagedReference;
 import jakarta.persistence.*;
 import lombok.Getter;
 import lombok.NoArgsConstructor;

backend/src/main/java/de/szut/casino/user/UserController.java

@@ -1,14 +1,14 @@
 package de.szut.casino.user;
 
+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.*;
-import de.szut.casino.user.dto.CreateUserDto;
-import de.szut.casino.user.dto.GetUserDto;
-import jakarta.validation.Valid;
-import lombok.extern.slf4j.Slf4j;
 
 @Slf4j
 @RestController

backend/src/main/java/de/szut/casino/user/transaction/TransactionController.java

@@ -1,7 +1,5 @@
 package de.szut.casino.user.transaction;
 
-import de.szut.casino.deposit.TransactionEntity;
-import de.szut.casino.user.transaction.dto.GetTransactionDto;
 import de.szut.casino.user.transaction.dto.UserTransactionsDto;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.ResponseEntity;
@@ -10,8 +8,6 @@ import org.springframework.web.bind.annotation.RequestHeader;
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
 
-import java.util.List;
-
 @RestController
 public class TransactionController {