feat : 허용범위와 예산 조회 API 구현

src/main/java/com/connect/accountApp/domain/household/adapter/in/web/controller/GetHouseholdBudgetController.java

@@ -0,0 +1,37 @@
+package com.connect.accountApp.domain.household.adapter.in.web.controller;
+
+import com.connect.accountApp.domain.household.adapter.in.web.response.GetBudgetAllowanceAmountResponse;
+import com.connect.accountApp.domain.household.adapter.in.web.response.GetHouseholdBudgetResponse;
+import com.connect.accountApp.domain.household.application.port.in.GetHouseholdBudgetUseCase;
+import com.connect.accountApp.domain.household.domain.model.Household;
+import com.connect.accountApp.global.common.adapter.in.web.response.SuccessResponse;
+import java.math.BigDecimal;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.ResponseEntity;
+import org.springframework.security.core.annotation.AuthenticationPrincipal;
+import org.springframework.security.core.userdetails.UserDetails;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/api/v1/household")
+@RequiredArgsConstructor
+public class GetHouseholdBudgetController {
+
+    private final GetHouseholdBudgetUseCase getHouseholdBudgetUseCase;
+
+    @GetMapping("/budget")
+    public ResponseEntity getBudgetAllowanceAmount(@AuthenticationPrincipal UserDetails userDetails) {
+
+        String userEmail = userDetails.getUsername();
+        Household householdBudget = getHouseholdBudgetUseCase.getHouseholdBudget(userEmail);
+        GetHouseholdBudgetResponse response = new GetHouseholdBudgetResponse(
+                householdBudget.getHouseholdBudget(),
+                householdBudget.getHouseholdBudgetAllowanceRatio());
+
+        return ResponseEntity.ok(SuccessResponse.create200SuccessResponse(response));
+    }
+
+}

src/main/java/com/connect/accountApp/domain/household/adapter/in/web/response/GetHouseholdBudgetResponse.java

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+package com.connect.accountApp.domain.household.adapter.in.web.response;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import java.math.BigDecimal;
+import java.math.RoundingMode;
+import lombok.Builder;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Data
+@Builder
+@NoArgsConstructor
+public class GetHouseholdBudgetResponse {
+
+    @JsonProperty("budget_amount")
+    private BigDecimal householdBudgetAmount;
+    @JsonProperty("budget_allowance")
+    private Integer householdBudgetAllowance;
+
+    public GetHouseholdBudgetResponse(BigDecimal householdBudgetAmount, Integer householdBudgetAllowance) {
+        this.householdBudgetAmount = householdBudgetAmount.setScale(0, RoundingMode.FLOOR);
+        this.householdBudgetAllowance = householdBudgetAllowance;
+    }
+}

src/main/java/com/connect/accountApp/domain/household/application/port/in/GetHouseholdBudgetUseCase.java

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+package com.connect.accountApp.domain.household.application.port.in;
+
+import com.connect.accountApp.domain.household.domain.model.Household;
+
+public interface GetHouseholdBudgetUseCase {
+
+    Household getHouseholdBudget(String userEmail);
+}

src/main/java/com/connect/accountApp/domain/household/application/service/GetHouseholdBudgetService.java

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+package com.connect.accountApp.domain.household.application.service;
+
+import com.connect.accountApp.domain.household.application.port.in.GetHouseholdBudgetUseCase;
+import com.connect.accountApp.domain.household.application.port.out.GetHouseholdPort;
+import com.connect.accountApp.domain.household.domain.model.Household;
+import com.connect.accountApp.domain.user.application.port.out.FindHouseholdUserListPort;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+
+@Service
+@RequiredArgsConstructor
+public class GetHouseholdBudgetService implements GetHouseholdBudgetUseCase {
+
+    private final GetHouseholdPort getHouseholdPort;
+    private final FindHouseholdUserListPort findHouseholdUserListPort;
+
+    @Override
+    public Household getHouseholdBudget(String userEmail) {
+        Long householdId = findHouseholdUserListPort.findHouseholdId(userEmail);
+        Household household = getHouseholdPort.getHousehold(householdId);
+        return household;
+    }
+}