Change types for currencies to BigDecimal

transaction-service/src/main/java/cz/muni/fi/obs/api/CurrencyExchangeResult.java

 package cz.muni.fi.obs.api;
 
+import java.math.BigDecimal;
+
 import lombok.Builder;
 
 @Builder
 public record CurrencyExchangeResult(
 		String symbolFrom,
 		String symbolTo,
-		long exchangedRate,
-		long sourceAmount,
-		long exchangedAmount) {
+		BigDecimal exchangedRate,
+		BigDecimal sourceAmount,
+		BigDecimal exchangedAmount) {
 }

transaction-service/src/main/java/cz/muni/fi/obs/api/TransactionCreateDto.java

 package cz.muni.fi.obs.api;
 
+import java.math.BigDecimal;
+
 import jakarta.validation.constraints.Min;
 import jakarta.validation.constraints.NotBlank;
 import lombok.Builder;
@@ -10,8 +12,8 @@ public record TransactionCreateDto(
 		String withdrawsFrom,
 		@NotBlank
 		String depositsTo,
-		@Min(0)long withdrawAmount,
-		@Min(0)long depositAmount,
+		@Min(0) BigDecimal withdrawAmount,
+		@Min(0) BigDecimal depositAmount,
 		String note,
 		String variableSymbol) {
 }

transaction-service/src/main/java/cz/muni/fi/obs/controller/TransactionController.java

@@ -2,6 +2,8 @@ package cz.muni.fi.obs.controller;
 
 import static cz.muni.fi.obs.controller.TransactionController.TRANSACTION_PATH;
 
+import java.math.BigDecimal;
+
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.data.domain.Page;
 import org.springframework.http.ResponseEntity;
@@ -47,7 +49,7 @@ public class TransactionController {
 	}
 
 	@GetMapping("/account/{accountId}/balance")
-	public ResponseEntity<Long> checkAccountBalance(@PathVariable("accountId") String accountId) {
+	public ResponseEntity<BigDecimal> checkAccountBalance(@PathVariable("accountId") String accountId) {
 		log.info("Checking account balance for account: {}", accountId);
 		return ResponseEntity.ok(facade.checkAccountBalance(accountId));
 	}

transaction-service/src/main/java/cz/muni/fi/obs/data/dbo/TransactionDbo.java

 package cz.muni.fi.obs.data.dbo;
 
+import java.math.BigDecimal;
+
 import org.springframework.data.annotation.Id;
 
 import lombok.Builder;
@@ -7,12 +9,11 @@ import lombok.Builder;
 @Builder
 public record TransactionDbo(
 		@Id String id,
-		long conversionRate,
+		BigDecimal conversionRate,
 		String withdrawsFrom,
 		String depositsTo,
-		long withdrawAmount,
-		long depositAmount,
+		BigDecimal withdrawAmount,
+		BigDecimal depositAmount,
 		String note,
-		String variableSymbol,
-		String state) {
+		String variableSymbol) {
 }

transaction-service/src/main/java/cz/muni/fi/obs/data/repository/TransactionRepository.java

 package cz.muni.fi.obs.data.repository;
 
+import java.math.BigDecimal;
 import java.util.List;
 
 import org.springframework.data.domain.Page;
@@ -16,13 +17,12 @@ public class TransactionRepository {
 		return TransactionDbo.builder()
 				.id("1")
 				.depositsTo("1")
-				.conversionRate(1)
+				.conversionRate(BigDecimal.valueOf(1))
 				.note("note")
-				.withdrawAmount(1)
+				.withdrawAmount(BigDecimal.valueOf(1))
 				.withdrawsFrom("1")
-				.depositAmount(1)
+				.depositAmount(BigDecimal.valueOf(1))
 				.variableSymbol("123")
-				.state("state")
 				.build();
 	}
 
@@ -31,24 +31,22 @@ public class TransactionRepository {
 				TransactionDbo.builder()
 						.id("1")
 						.depositsTo("1")
-						.conversionRate(1)
+						.conversionRate(BigDecimal.valueOf(1))
 						.note("note")
-						.withdrawAmount(1)
+						.withdrawAmount(BigDecimal.valueOf(1))
 						.withdrawsFrom("1")
-						.depositAmount(1)
+						.depositAmount(BigDecimal.valueOf(1))
 						.variableSymbol("123")
-						.state("state")
 						.build(),
 				TransactionDbo.builder()
 						.id("2")
 						.depositsTo("1")
-						.conversionRate(2)
+						.conversionRate(BigDecimal.valueOf(2))
 						.note("note")
-						.withdrawAmount(2)
+						.withdrawAmount(BigDecimal.valueOf(2))
 						.withdrawsFrom("2")
-						.depositAmount(2)
+						.depositAmount(BigDecimal.valueOf(2))
 						.variableSymbol("123")
-						.state("state")
 						.build()
 		);
 	}
@@ -58,24 +56,22 @@ public class TransactionRepository {
 				TransactionDbo.builder()
 						.id("1")
 						.depositsTo("1")
-						.conversionRate(1)
+						.conversionRate(BigDecimal.valueOf(1))
 						.note("note")
-						.withdrawAmount(1)
+						.withdrawAmount(BigDecimal.valueOf(1))
 						.withdrawsFrom("1")
-						.depositAmount(1)
+						.depositAmount(BigDecimal.valueOf(1))
 						.variableSymbol("123")
-						.state("state")
 						.build(),
 				TransactionDbo.builder()
 						.id("2")
 						.depositsTo("1")
-						.conversionRate(2)
+						.conversionRate(BigDecimal.valueOf(2))
 						.note("note")
-						.withdrawAmount(2)
+						.withdrawAmount(BigDecimal.valueOf(2))
 						.withdrawsFrom("1")
-						.depositAmount(2)
+						.depositAmount(BigDecimal.valueOf(2))
 						.variableSymbol("123")
-						.state("state")
 						.build()
 		);
 	}
@@ -84,24 +80,22 @@ public class TransactionRepository {
 		var transactions = List.of(
 				TransactionDbo.builder()
 						.id("1")
-						.conversionRate(1)
+						.conversionRate(BigDecimal.valueOf(1))
 						.note("note")
-						.withdrawAmount(1)
+						.withdrawAmount(BigDecimal.valueOf(1))
 						.withdrawsFrom("1")
-						.depositAmount(1)
+						.depositAmount(BigDecimal.valueOf(1))
 						.variableSymbol("123")
-						.state("state")
 						.build(),
 				TransactionDbo.builder()
 						.id("2")
 						.depositsTo("2")
-						.conversionRate(2)
+						.conversionRate(BigDecimal.valueOf(2))
 						.note("note")
-						.withdrawAmount(2)
+						.withdrawAmount(BigDecimal.valueOf(2))
 						.withdrawsFrom("2")
-						.depositAmount(2)
+						.depositAmount(BigDecimal.valueOf(2))
 						.variableSymbol("123")
-						.state("state")
 						.build()
 		);
 

transaction-service/src/main/java/cz/muni/fi/obs/facade/TransactionManagementFacade.java

 package cz.muni.fi.obs.facade;
 
+import java.math.BigDecimal;
+
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.data.domain.Page;
 import org.springframework.stereotype.Component;
@@ -35,7 +37,7 @@ public class TransactionManagementFacade {
 		return transactionService.viewTransactionHistory(accountId, pageNumber, pageSize);
 	}
 
-	public long checkAccountBalance(String accountId) {
+	public BigDecimal checkAccountBalance(String accountId) {
 		return transactionService.checkAccountBalance(accountId);
 	}
 

transaction-service/src/main/java/cz/muni/fi/obs/service/TransactionService.java

 package cz.muni.fi.obs.service;
 
+import java.math.BigDecimal;
 import java.util.UUID;
 
 import org.springframework.beans.factory.annotation.Autowired;
@@ -23,14 +24,18 @@ public class TransactionService {
 		this.client = client;
 	}
 
-	public long checkAccountBalance(String accountId) {
+	public BigDecimal checkAccountBalance(String accountId) {
 		var withdraws = repository.getTransactionsByWithdrawId(accountId);
 		var deposits = repository.getTransactionsByDepositId(accountId);
 
-		long withdrawSum = withdraws.stream().mapToLong(TransactionDbo::withdrawAmount).sum();
-		long depositSum = deposits.stream().mapToLong(TransactionDbo::depositAmount).sum();
+		BigDecimal withdrawSum = withdraws.stream()
+				.map(TransactionDbo::withdrawAmount)
+				.reduce(BigDecimal.ZERO, BigDecimal::add);
+		BigDecimal depositSum = deposits.stream()
+				.map(TransactionDbo::depositAmount)
+				.reduce(BigDecimal.ZERO, BigDecimal::add);
 
-		return depositSum - withdrawSum;
+		return depositSum.subtract(withdrawSum);
 	}
 
 	public Page<TransactionDbo> viewTransactionHistory(String accountId, int pageNumber, int pageSize) {

transaction-service/src/main/java/cz/muni/fi/obs/web/CurrencyServiceClient.java

 package cz.muni.fi.obs.web;
 
+import java.math.BigDecimal;
+
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
@@ -11,9 +13,9 @@ public class CurrencyServiceClient {
 	@Bean
 	public CurrencyExchangeResult getConversionRate() {
 		return CurrencyExchangeResult.builder()
-				.sourceAmount(100)
-				.exchangedAmount(4)
-				.exchangedRate(25)
+				.sourceAmount(BigDecimal.valueOf(100))
+				.exchangedAmount(BigDecimal.valueOf(4))
+				.exchangedRate(BigDecimal.valueOf(4))
 				.symbolFrom("CZK")
 				.symbolTo("EUR").build();
 	}