Feature/v1

src/main/java/com/quickpick/ureca/common/init/InitController.java

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+package com.quickpick.ureca.common.init;
+
+import lombok.RequiredArgsConstructor;
+import org.springframework.format.annotation.DateTimeFormat;
+import org.springframework.web.bind.annotation.*;
+
+import java.time.LocalDateTime;
+
+@RestController
+@RequiredArgsConstructor
+@RequestMapping("/init")
+public class InitController {
+
+    private final InitService initService;
+
+    @PostMapping
+    public String initializePost(
+            @RequestParam(defaultValue = "1000") int ticketCount,
+            @RequestParam(defaultValue = "10000") int userCount,
+            @RequestParam(required = false) @DateTimeFormat(iso = DateTimeFormat.ISO.DATE_TIME) LocalDateTime startDate,
+            @RequestParam(required = false) @DateTimeFormat(iso = DateTimeFormat.ISO.DATE_TIME) LocalDateTime reserveDate
+    ) {
+        return initService.initialize(ticketCount, userCount, startDate, reserveDate);
+    }
+}

src/main/java/com/quickpick/ureca/common/init/InitService.java

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+package com.quickpick.ureca.common.init;
+
+import com.quickpick.ureca.ticket.domain.Ticket;
+import com.quickpick.ureca.ticket.repository.TicketRepositoryV1;
+import com.quickpick.ureca.user.domain.User;
+import com.quickpick.ureca.user.repository.UserRepository;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+
+import java.time.LocalDateTime;
+import java.util.ArrayList;
+import java.util.List;
+
+
+@Service
+@RequiredArgsConstructor
+public class InitService {
+
+    private final TicketRepositoryV1 ticketRepository;
+    private final UserRepository userRepository;
+
+    public String initialize(int ticketCount, int userCount, LocalDateTime startDate, LocalDateTime reserveDate) {
+        ticketRepository.deleteAll();
+        userRepository.deleteAll();
+
+        Ticket ticket = Ticket.builder()
+                .name("테스트 티켓")
+                .quantity(ticketCount)
+                .startDate(startDate != null ? startDate : LocalDateTime.now().plusDays(1))
+                .reserveDate(reserveDate != null ? reserveDate : LocalDateTime.now())
+                .build();
+        ticketRepository.save(ticket);
+
+        List<User> users = new ArrayList<>();
+        for (int i = 1; i <= userCount; i++) {
+            User user = User.builder()
+                    .id("user" + i)
+                    .password("pw" + i)
+                    .name("User" + i)
+                    .age("20")
+                    .gender("M")
+                    .build();
+            users.add(user);
+        }
+        userRepository.saveAll(users);
+
+        return "초기화 완료: 티켓 1개(" + ticketCount + "개 수량), 유저 " + userCount + "명 생성";
+    }
+}

src/main/java/com/quickpick/ureca/common/init/InitTrigger.java

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+//package com.quickpick.ureca.common.init;
+//
+//import lombok.RequiredArgsConstructor;
+//import org.springframework.boot.context.event.ApplicationReadyEvent;
+//import org.springframework.context.ApplicationListener;
+//import org.springframework.context.annotation.Profile;
+//import org.springframework.stereotype.Component;
+//
+//import java.time.LocalDateTime;
+//
+//@Component
+//@Profile("local") // 배포환경에서는 작동 안 하도록
+//@RequiredArgsConstructor
+//public class InitTrigger implements ApplicationListener<ApplicationReadyEvent> {
+//
+//    private final InitService initService;
+//
+//    @Override
+//    public void onApplicationEvent(ApplicationReadyEvent event) {
+//        LocalDateTime reserveDate = LocalDateTime.now();
+//        LocalDateTime startDate = reserveDate.plusDays(1);
+//        // ticketCount, userCount는 필요에 따라 조정
+//        initService.initialize(3000, 10000, startDate, reserveDate);
+//    }
+//
+//}

src/main/java/com/quickpick/ureca/reserve/controller/ReserveControllerV1.java

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+package com.quickpick.ureca.reserve.controller;
+
+import com.quickpick.ureca.reserve.service.ReserveServiceV1;
+import com.quickpick.ureca.user.repository.UserRepository;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+@RestController
+@RequestMapping("/test-reserve")
+@Slf4j
+public class ReserveControllerV1 {
+
+    private final ReserveServiceV1 reserveServiceV1;
+    private final UserRepository userRepository;
+
+    public ReserveControllerV1(ReserveServiceV1 reserveServiceV1, UserRepository userRepository) {
+        this.reserveServiceV1 = reserveServiceV1;
+        this.userRepository = userRepository;
+    }
+
+    @PostMapping("/reserve")
+    public ResponseEntity<String> reserve(@RequestParam Long userId, @RequestParam Long ticketId) {
+        try {
+            reserveServiceV1.reserveTicket(userId, ticketId);
+            return ResponseEntity.ok("예약 성공");
+        } catch (Exception e) {
+            log.error("예약 실패: {}", e.getMessage());
+            return ResponseEntity.status(HttpStatus.BAD_REQUEST).body("예약 실패: " + e.getMessage());
+        }
+    }
+
+    // open-in-view + Fetch-Join + DTO
+//    @PostMapping
+//    public ResponseEntity<TicketReserveResponse> reserve(@RequestParam Long userId, @RequestParam Long ticketId) {
+//        try {
+//            Ticket ticket = reserveServiceV1.reserveTicket(userId, ticketId);
+//            User user = userRepository.findById(userId).orElseThrow();
+//            return ResponseEntity.ok(TicketReserveResponse.of(ticket, user));
+//        } catch (Exception e) {
+//            log.error("예약 실패: {}", e.getMessage());
+//            return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(null);
+//        }
+//    }
+
+    @PostMapping("/cancel")
+    public ResponseEntity<String> cancelReservation(@RequestParam Long userId, @RequestParam Long ticketId) {
+        log.info("{}의 티켓 취소 요청", userId);
+        reserveServiceV1.cancelReservation(userId, ticketId);
+        return ResponseEntity.ok("예약이 성공적으로 취소되었습니다.");
+    }
+}

src/main/java/com/quickpick/ureca/reserve/dto/TicketReserveResponse.java

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+package com.quickpick.ureca.reserve.dto;
+
+import com.quickpick.ureca.ticket.domain.Ticket;
+import com.quickpick.ureca.user.domain.User;
+
+public record TicketReserveResponse(
+        Long ticketId,
+        String ticketName,
+        int remainingQuantity,
+        String reservedByUsername
+) {
+    public static TicketReserveResponse of(Ticket ticket, User user) {
+        return new TicketReserveResponse(
+                ticket.getTicketId(),
+                ticket.getName(),
+                ticket.getQuantity(),
+                user.getId()
+        );
+    }
+}

src/main/java/com/quickpick/ureca/reserve/repository/ReserveRepositoryV1.java

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+package com.quickpick.ureca.reserve.repository;
+
+import com.quickpick.ureca.reserve.domain.Reserve;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface ReserveRepositoryV1 extends JpaRepository<Reserve, Long> {
+}