카카오 결제를 이용한 결제 기능 추가

build.gradle

@@ -37,6 +37,7 @@ dependencies {
     implementation 'org.springframework.boot:spring-boot-starter-webflux'
     testImplementation 'org.springframework.security:spring-security-test'
     implementation 'org.springframework.boot:spring-boot-starter-security'
+    implementation 'org.springframework.boot:spring-boot-starter-thymeleaf'
 
     // batch
     implementation 'org.springframework.boot:spring-boot-starter-batch'
@@ -68,7 +69,6 @@ dependencies {
     // swaggerDoc
     implementation 'org.springdoc:springdoc-openapi-starter-webmvc-ui:2.3.0'
 
-
 }
 
 tasks.named('test') {

src/main/java/com/example/silverbridgeX_user/global/api_payload/ErrorCode.java

@@ -34,6 +34,10 @@ public enum ErrorCode implements BaseCode {
     // Recommend Activity
     RECOMMEND_ACTIVITY_NOT_FOUND(HttpStatus.NOT_FOUND, "RECOMMEND_4041", "존재하지 않는 추천입니다."),
 
+    // Payment
+    TID_NOT_EXIST(HttpStatus.BAD_REQUEST, "PAYMENT_4001", "tid가 존재하지 않습니다."),
+    TID_SID_UNSUPPORTED(HttpStatus.BAD_REQUEST, "PAYMENT_4002", "지원되지 않는 tid, sid 입니다."),
+    SID_NOT_EXIST(HttpStatus.BAD_REQUEST, "PAYMENT_4003", "sid가 존재하지 않습니다."),
     ;
 
     private final HttpStatus httpStatus;

src/main/java/com/example/silverbridgeX_user/global/api_payload/SuccessCode.java

@@ -30,6 +30,14 @@ public enum SuccessCode implements BaseCode {
 
     // MatchRequest
     MATCH_REQUEST_SUCCESS(HttpStatus.OK, "MATCH_REQUEST_2001", "매치 신청이 완료되었습니다."),
+
+    // Payment
+    PAYMENT_URL_CREATE_SUCCESS(HttpStatus.OK, "PAYMENT_2001", "카카오페이 URL을 생성하였습니다."),
+    PAYMENT_CANCEL_SUCCESS(HttpStatus.OK, "PAYMENT_2002", "결제 취소가 완료되었습니다."),
+    PAYMENT_SUBSCRIBE_SUCCESS(HttpStatus.OK, "PAYMENT_2003", "구독이 완료되었습니다."),
+    PAYMENT_SUBSCRIBE_CANCEL_SUCCESS(HttpStatus.OK, "PAYMENT_2004", "구독 취소가 완료되었습니다."),
+    PAYMENT_VIEW_SUBSCRIBE_STATUS_SUCCESS(HttpStatus.OK, "PAYMENT_2005", "구독 상태를 반환 완료하였습니다."),
+
     ;
 
     private final HttpStatus httpStatus;

src/main/java/com/example/silverbridgeX_user/payment/controller/PaymentController.java

@@ -0,0 +1,120 @@
+package com.example.silverbridgeX_user.payment.controller;
+
+import com.example.silverbridgeX_user.global.api_payload.ApiResponse;
+import com.example.silverbridgeX_user.global.api_payload.SuccessCode;
+import com.example.silverbridgeX_user.payment.converter.PaymentConverter;
+import com.example.silverbridgeX_user.payment.domain.Payment;
+import com.example.silverbridgeX_user.payment.dto.PaymentDto;
+import com.example.silverbridgeX_user.payment.service.PaymentService;
+import com.example.silverbridgeX_user.user.domain.User;
+import com.example.silverbridgeX_user.user.jwt.CustomUserDetails;
+import com.example.silverbridgeX_user.user.service.UserService;
+import io.swagger.v3.oas.annotations.Operation;
+import lombok.RequiredArgsConstructor;
+import org.springframework.security.core.annotation.AuthenticationPrincipal;
+import org.springframework.web.bind.annotation.*;
+import org.springframework.web.servlet.ModelAndView;
+
+@RestController
+@RequestMapping("/payment")
+@RequiredArgsConstructor
+public class PaymentController {
+
+    private final PaymentService paymentService;
+    private final UserService userService;
+
+    @PostMapping("/ready")
+    @Operation(summary = "카카오페이 URL 생성 API", description = "카카오페이 URL을 생성하는 API 입니다.")
+    public ApiResponse<PaymentDto.KakaoReadyResponse> readyToKakaoPay(@AuthenticationPrincipal CustomUserDetails customUserDetails) {
+        PaymentDto.KakaoReadyResponse kakaoReadyResponse = paymentService.kakaoPayReady();
+
+        User user = userService.findByUserName(customUserDetails.getUsername());
+        Long userId = user.getId();
+
+        paymentService.saveTid(userId, kakaoReadyResponse.getTid());
+
+        return ApiResponse.onSuccess(SuccessCode.PAYMENT_URL_CREATE_SUCCESS, kakaoReadyResponse);
+    }
+
+    @GetMapping("/success")
+    public ModelAndView afterPayRequest(@RequestParam("pg_token") String pgToken) {
+        PaymentDto.KakaoApproveResponse kakaoApproveResponse = paymentService.approveResponse(pgToken);
+
+        ModelAndView modelAndView = new ModelAndView("success"); // "success"는 템플릿 파일 이름
+        modelAndView.addObject("paymentInfo", kakaoApproveResponse);
+
+        paymentService.saveSid(kakaoApproveResponse);
+
+        return modelAndView;
+    }
+
+    @GetMapping("/fail")
+    public String fail() {
+        return "fail";
+    }
+
+    @GetMapping("/cancel")
+    public ApiResponse<PaymentDto.KakaoCancelResponse> refund(@AuthenticationPrincipal CustomUserDetails customUserDetails) {
+
+        User user = userService.findByUserName(customUserDetails.getUsername());
+        Long userId = user.getId();
+
+        Payment kakaoPay = paymentService.getKakaoPayInfo(userId);
+
+        PaymentDto.KakaoCancelResponse kakaoCancelResponse = paymentService.cancelResponse(kakaoPay.getTid());
+
+        paymentService.cancelPay(userId);
+
+        return ApiResponse.onSuccess(SuccessCode.PAYMENT_CANCEL_SUCCESS, kakaoCancelResponse);
+    }
+
+    @PostMapping("/subscribe")
+    public ApiResponse<PaymentDto.KakaoApproveResponse> subscribePayRequest(@AuthenticationPrincipal CustomUserDetails customUserDetails) {
+        User user = userService.findByUserName(customUserDetails.getUsername());
+        Long userId = user.getId();
+
+        Payment kakaoPay = paymentService.getKakaoPayInfo(userId);
+
+        PaymentDto.KakaoApproveResponse kakaoApproveResponse = paymentService.approveSubscribeResponse(kakaoPay.getSid());
+
+        paymentService.savePayInfo(userId, kakaoApproveResponse);
+
+        return ApiResponse.onSuccess(SuccessCode.PAYMENT_SUBSCRIBE_SUCCESS, kakaoApproveResponse);
+    }
+
+    @PostMapping("/subscribe/cancel")
+    @Operation(summary = "카카오페이 구독 취소 API", description = "카카오페이 구독을 취소하는 API 입니다.")
+    public ApiResponse<PaymentDto.KakaoSubscribeCancelResponse> subscribeCancelRequest(@AuthenticationPrincipal CustomUserDetails customUserDetails) {
+        User user = userService.findByUserName(customUserDetails.getUsername());
+        Long userId = user.getId();
+
+        Payment kakaoPay = paymentService.getKakaoPayInfo(userId);
+
+        PaymentDto.KakaoSubscribeCancelResponse kakaoSubscribeCancelResponse = paymentService.subscribeCancelResponse(kakaoPay.getSid());
+
+        return ApiResponse.onSuccess(SuccessCode.PAYMENT_URL_CREATE_SUCCESS, kakaoSubscribeCancelResponse);
+    }
+
+    @GetMapping("/subscribe/status")
+    @Operation(summary = "카카오페이 구독 상태 확인 API", description = "카카오페이 구독 상태를 확인하는 API 입니다.")
+    public ApiResponse<PaymentDto.KakaoPayStatus> subscribeStatusRequest(@AuthenticationPrincipal CustomUserDetails customUserDetails) {
+        User user = userService.findByUserName(customUserDetails.getUsername());
+        Long userId = user.getId();
+
+        PaymentDto.KakaoSubscribeStatusResponse kakaoSubscribeStatusResponse = new PaymentDto.KakaoSubscribeStatusResponse();
+
+        boolean isLogExist = false;
+        if (paymentService.getKakaoPayLog(userId)) {
+            Payment kakaoPay = paymentService.getKakaoPayInfo(userId);
+
+            if (kakaoPay.getSid() == null || kakaoPay.getSid().isEmpty()) {}
+            else {
+                isLogExist = true;
+
+                kakaoSubscribeStatusResponse = paymentService.subscribeStatusResponse(kakaoPay.getSid());
+            }
+        }
+
+        return ApiResponse.onSuccess(SuccessCode.PAYMENT_VIEW_SUBSCRIBE_STATUS_SUCCESS, PaymentConverter.toKakaoPayStatus(isLogExist, kakaoSubscribeStatusResponse));
+    }
+}

src/main/java/com/example/silverbridgeX_user/payment/converter/PaymentConverter.java

@@ -0,0 +1,41 @@
+package com.example.silverbridgeX_user.payment.converter;
+
+import com.example.silverbridgeX_user.payment.domain.Payment;
+import com.example.silverbridgeX_user.payment.dto.PaymentDto;
+import com.example.silverbridgeX_user.user.domain.User;
+
+public class PaymentConverter {
+
+    public static Payment toKakaoPayTid(String tid, User user) {
+        return Payment.builder()
+                .user(user)
+                .tid(tid)
+                .build();
+
+    }
+
+    public static Payment toKakaoPay(String tid, String sid, User user) {
+        return Payment.builder()
+                .user(user)
+                .tid(tid)
+                .sid(sid)
+                .build();
+
+    }
+
+    public static PaymentDto.KakaoPayStatus toKakaoPayStatus(boolean isLogExist, PaymentDto.KakaoSubscribeStatusResponse kakaoSubscribeStatusResponse) {
+        String status = kakaoSubscribeStatusResponse.getStatus();
+
+        String last_approved_at;
+        if(kakaoSubscribeStatusResponse.getLast_approved_at() == null || kakaoSubscribeStatusResponse.getLast_approved_at().isEmpty()) {
+            last_approved_at = kakaoSubscribeStatusResponse.getCreated_at();
+        }
+        else last_approved_at = kakaoSubscribeStatusResponse.getLast_approved_at();
+
+        return PaymentDto.KakaoPayStatus.builder()
+                .isLogExist(isLogExist)
+                .status(status)
+                .last_approved_at(last_approved_at)
+                .build();
+    }
+}

src/main/java/com/example/silverbridgeX_user/payment/domain/Payment.java

@@ -0,0 +1,34 @@
+package com.example.silverbridgeX_user.payment.domain;
+
+import com.example.silverbridgeX_user.global.entity.BaseEntity;
+import com.example.silverbridgeX_user.user.domain.User;
+import jakarta.persistence.*;
+import lombok.*;
+
+@Entity
+@Getter
+@Builder
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+@AllArgsConstructor
+public class Payment extends BaseEntity {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    private String tid;
+
+    private String sid;
+
+    @OneToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "user_id")
+    private User user;
+
+    public void updateTid(String tid) { this.tid = tid; }
+
+    public void updateSid(String sid) { this.sid = sid; }
+
+    public void updatePayInfo(String tid, String sid) {
+        this.tid = tid;
+        this.sid = sid;
+    }
+}

src/main/java/com/example/silverbridgeX_user/payment/dto/PaymentDto.java

@@ -0,0 +1,146 @@
+package com.example.silverbridgeX_user.payment.dto;
+
+import lombok.*;
+
+public class PaymentDto {
+
+    @Getter
+    @Setter
+    @ToString
+    public static class Amount {
+        private int total;
+        private int tax_free;
+        private int tax;
+        private int point;
+        private int discount;
+        private int green_deposit;
+    }
+
+    @Data
+    public static class KakaoReadyResponse {
+        private String tid;
+        private String next_redirect_app_url;
+        private String next_redirect_mobile_url;
+        private String next_redirect_pc_url;
+        private String android_app_scheme;
+        private String ios_app_scheme;
+        private String created_at;
+    }
+
+    @Getter
+    @Setter
+    @ToString
+    public static class KakaoApproveResponse {
+        private String aid;
+        private String tid;
+        private String cid;
+        private String sid;
+        private String partner_order_id;
+        private String partner_user_id;
+        private String payment_method_type;
+        private Amount amount;
+        private String item_name;
+        private String item_code;
+        private int quantity;
+        private String created_at;
+        private String approved_at;
+        private String payload;
+    }
+
+    @Getter
+    @Setter
+    @ToString
+    public static class KakaoCancelResponse {
+        private String aid;
+        private String tid;
+        private String cid;
+        private String status;
+        private String partner_order_id;
+        private String partner_user_id;
+        private String payment_method_type;
+        private Amount amount;
+        private ApprovedCancelAmount approved_cancel_amount;
+        private CanceledAmount canceled_amount;
+        private CancelAvailableAmount cancel_available_amount;
+        private String item_name;
+        private String item_code;
+        private int quantity;
+        private String created_at;
+        private String approved_at;
+        private String canceled_at;
+        private String payload;
+    }
+
+    @Getter
+    @Setter
+    @ToString
+    public static class KakaoSubscribeCancelResponse {
+        private String cid;
+        private String sid;
+        private String status;
+        private String created_at;
+        private String last_approved_at;
+        private String inactivated_at;
+    }
+
+    @Getter
+    @Setter
+    @ToString
+    public static class KakaoSubscribeStatusResponse {
+        private boolean available;
+        private String cid;
+        private String sid;
+        private String status;
+        private String item_name;
+        private String payment_method_type;
+        private String created_at;
+        private String last_approved_at;
+        private String use_point_status;
+    }
+
+    @Getter
+    @Setter
+    @ToString
+    public static class ApprovedCancelAmount {
+        private int total;
+        private int tax_free;
+        private int vat;
+        private int point;
+        private int discount;
+        private int green_deposit;
+    }
+
+    @Getter
+    @Setter
+    @ToString
+    public static class CanceledAmount {
+        private int total;
+        private int tax_free;
+        private int vat;
+        private int point;
+        private int discount;
+        private int green_deposit;
+    }
+
+    @Getter
+    @Setter
+    @ToString
+    public static class CancelAvailableAmount {
+        private int total;
+        private int tax_free;
+        private int vat;
+        private int point;
+        private int discount;
+        private int green_deposit;
+    }
+
+    @Builder
+    @Getter
+    @Setter
+    @ToString
+    public static class KakaoPayStatus {
+        private boolean isLogExist;
+        private String status;
+        private String last_approved_at;
+    }
+}