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README.md

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+# 요구사항 문서
+
+- [x] API 명세를 현재 프론트엔드 코드가 잘 동작할 수 있도록 수정
+- [x] 예약 시간에 대한 제약 조건 추가
+    - [x] 중복된 예약 시간 생성 요청 시 에러
+    - [x] ISO 8601 표준에 따른 hh:mm 포맷에 해당하지 않는 요청 시 에러
+    - [x] 예약이 있는 예약 시간을 삭제 요청 시 에러
+- [x] 예약에 대한 제약 조건 추가
+    - [x] 동일한 날짜와 시간, 테마에 예약 생성 요청 시 에러
+    - [x] 존재하지 않는 시간에 예약 생성 요청 시 에러
+    - [x] ISO 8601 표준에 따른 YYYY-MM-dd 포맷에 해당하지 않는 날짜가 포함된 예약 생성 요청 시 에러
+    - [x] 지나간 날짜와 시간의 예약 요청 시 에러
+    - [x] 이름이 비어있는 예약 요청 시 에러
+    - [x] 존재하지 않는 테마 예약 생성 요청시 에러
+    - [x] 테마 값이 비어있는 예약 요청 시 에러
+
+- [x] 테마에 대한 제약 조건 추가
+    - [x] 테마 이름, 설명, 썸네일 이미자가 비어 있을 경우 에러
+    - [x] 중복된 이름의 테마 생성 요청시 에러
+    - [x] 예약이 있는 테마를 삭제 요청시 에러
+
+- [ ] 사용자 예약 기능 추가
+- [x] 인기 테마 기능 추가
+
+# API 명세
+
+## 예약 조회 API
+
+### Request
+
+> GET /reservations HTTP/1.1
+
+### Response
+
+> HTTP/1.1 200
+>
+> Content-Type: application/json
+
+``` JSON 
+[
+    {
+        "id": 1,
+        "name": "브라운",
+        "date": "2023-08-05",
+        "time": {
+            "id": 1,
+            "startAt": "10:00"
+        }
+        "theme" : {
+            "id": 1,
+            "name": "이름",
+            "description": "설명",
+            "thumbnail": "썸네일"
+        }
+    }
+]
+```
+
+## 예약 추가 API
+
+### Request
+
+> POST /reservations HTTP/1.1
+>
+> content-type: application/json
+
+```JSON
+{
+  "date": "2023-08-05",
+  "name": "브라운",
+  "timeId": 1,
+  "themeId": 1
+}
+```
+
+### Response
+
+> HTTP/1.1 201
+>
+> Content-Type: application/json
+> Location: /reservations/{id}
+
+```JSON
+{
+  "id": 1,
+  "name": "브라운",
+  "date": "2023-08-05",
+  "time": {
+    "id": 1,
+    "startAt": "10:00"
+  },
+  "theme": {
+    "id": 1,
+    "name": "이름",
+    "description": "설명",
+    "thumbnail": "썸네일"
+  }
+}
+```
+
+## 예약 취소 API
+
+### Request
+
+> DELETE /reservations/1 HTTP/1.1
+
+### Response
+
+> HTTP/1.1 204
+
+## 시간 추가 API
+
+### request
+
+> POST /times HTTP/1.1
+> content-type: application/json
+
+```JSON
+{
+  "startAt": "10:00"
+}
+```
+
+### response
+
+> HTTP/1.1 201
+> Content-Type: application/json
+> Location: /times/{id}
+
+```JSON
+{
+  "id": 1,
+  "startAt": "10:00"
+}
+```
+
+## 시간 조회 API
+
+### request
+
+> GET /times HTTP/1.1
+
+### response
+
+> HTTP/1.1 200
+> Content-Type: application/json
+
+```JSON
+[
+  {
+    "id": 1,
+    "startAt": "10:00"
+  }
+]
+```
+
+## 시간 삭제 API
+
+### request
+
+> DELETE /times/1 HTTP/1.1
+
+### response
+
+> HTTP/1.1 204
+
+## 테마 조회 API
+
+### request
+
+> GET /themes HTTP/1.1
+
+### response
+
+> HTTP/1.1 200
+> Content-Type: application/json
+
+```json
+[
+  {
+    "id": 1,
+    "name": "레벨2 탈출",
+    "description": "우테코 레벨2를 탈출하는 내용입니다.",
+    "thumbnail": "https://i.pinimg.com/236x/6e/bc/46/6ebc461a94a49f9ea3b8bbe2204145d4.jpg"
+  }
+]
+```
+
+## 테마 추가 API
+
+### request
+
+> POST /themes HTTP/1.1
+> content-type: application/json
+
+```json
+{
+  "name": "레벨2 탈출",
+  "description": "우테코 레벨2를 탈출하는 내용입니다.",
+  "thumbnail": "https://i.pinimg.com/236x/6e/bc/46/6ebc461a94a49f9ea3b8bbe2204145d4.jpg"
+}
+```
+
+### response
+
+> HTTP/1.1 201
+> Location: /themes/1
+> Content-Type: application/json
+
+```json
+{
+  "id": 1,
+  "name": "레벨2 탈출",
+  "description": "우테코 레벨2를 탈출하는 내용입니다.",
+  "thumbnail": "https://i.pinimg.com/236x/6e/bc/46/6ebc461a94a49f9ea3b8bbe2204145d4.jpg"
+}
+```
+
+## 테마 삭제 API
+
+### request
+
+> DELETE /themes/1 HTTP/1.1
+
+### response
+
+> HTTP/1.1 204
+
+## 예약 가능 시간 조회 API
+
+### Request
+
+> GET /availableTimes?date=${date}&themeId=${themeId}
+
+### response
+
+> HTTP/1.1 200
+> Content-Type: application/json
+
+```json
+[
+  {
+    "id": 0,
+    "startAt": "02:53",
+    "isBooked": false
+  }
+]
+```

src/main/java/roomescape/config/TimeFormatterConfig.java

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+package roomescape.config;
+
+import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateDeserializer;
+import com.fasterxml.jackson.datatype.jsr310.deser.LocalTimeDeserializer;
+import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateSerializer;
+import com.fasterxml.jackson.datatype.jsr310.ser.LocalTimeSerializer;
+import java.time.format.DateTimeFormatter;
+import org.springframework.boot.autoconfigure.jackson.Jackson2ObjectMapperBuilderCustomizer;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+public class TimeFormatterConfig {
+    private static final DateTimeFormatter DATE_FORMATTER = DateTimeFormatter.ofPattern("yyyy-MM-dd");
+    private static final DateTimeFormatter TIME_FORMATTER = DateTimeFormatter.ofPattern("HH:mm");
+
+    @Bean
+    public Jackson2ObjectMapperBuilderCustomizer localTimeSerializerCustomizer() {
+        return builder -> builder.serializers(new LocalTimeSerializer(TIME_FORMATTER),
+                        new LocalDateSerializer(DATE_FORMATTER))
+                .deserializers(new LocalTimeDeserializer(TIME_FORMATTER), new LocalDateDeserializer(DATE_FORMATTER));
+    }
+}

src/main/java/roomescape/controller/AdminController.java

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+package roomescape.controller;
+
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+
+@Controller
+@RequestMapping("/admin")
+public class AdminController {
+    @GetMapping
+    public String mainPage() {
+        return "admin/index";
+    }
+
+    @GetMapping("/reservation")
+    public String reservationPage() {
+        return "admin/reservation-new";
+    }
+
+    @GetMapping("/time")
+    public String reservationTimePage() {
+        return "admin/time";
+    }
+
+    @GetMapping("/theme")
+    public String themePage() {
+        return "admin/theme";
+    }
+}

src/main/java/roomescape/controller/AvailableTimeController.java

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+package roomescape.controller;
+
+import java.time.LocalDate;
+import java.util.List;
+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;
+import roomescape.dto.AvailableTimeResponse;
+import roomescape.service.AvailableTimeService;
+
+@RestController
+@RequestMapping("/availableTimes")
+public class AvailableTimeController {
+
+    private final AvailableTimeService availableTimeService;
+
+    public AvailableTimeController(AvailableTimeService availableTimeService) {
+        this.availableTimeService = availableTimeService;
+    }
+
+    @GetMapping()
+    public List<AvailableTimeResponse> findByThemeAndDate(@RequestParam LocalDate date, @RequestParam long themeId) {
+        return availableTimeService.findByThemeAndDate(date, themeId);
+    }
+}

src/main/java/roomescape/controller/ReservationController.java

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+package roomescape.controller;
+
+import java.net.URI;
+import java.util.List;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.DeleteMapping;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+import roomescape.dto.ReservationRequest;
+import roomescape.dto.ReservationResponse;
+import roomescape.service.ReservationService;
+
+@RestController
+@RequestMapping("/reservations")
+public class ReservationController {
+    private final ReservationService reservationService;
+
+    public ReservationController(ReservationService reservationService) {
+        this.reservationService = reservationService;
+    }
+
+    @PostMapping
+    public ResponseEntity<ReservationResponse> saveReservation(@RequestBody ReservationRequest reservationRequest) {
+        ReservationResponse saved = reservationService.save(reservationRequest);
+        return ResponseEntity.created(URI.create("/reservations/" + saved.id()))
+                .body(saved);
+    }
+
+    @GetMapping
+    public List<ReservationResponse> findAllReservations() {
+        return reservationService.findAll();
+    }
+
+    @DeleteMapping("/{id}")
+    public ResponseEntity<Void> delete(@PathVariable long id) {
+        reservationService.delete(id);
+        return ResponseEntity.noContent().build();
+    }
+}