feat: 实现查询设备不可用时间，预约设备功能

src/main/java/github/benjamin/equipreservebackend/config/WebConfig.java

@@ -0,0 +1,15 @@
+package github.benjamin.equipreservebackend.config;
+
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+
+@Configuration
+public class WebConfig implements WebMvcConfigurer {
+
+    @Override
+    public void addResourceHandlers(ResourceHandlerRegistry registry) {
+        registry.addResourceHandler("/device_image/**")
+                .addResourceLocations("file:" + System.getProperty("user.dir") + "/device_image/");
+    }
+}

src/main/java/github/benjamin/equipreservebackend/controller/DeviceController.java

@@ -4,13 +4,16 @@ import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import github.benjamin.equipreservebackend.entity.Device;
 import github.benjamin.equipreservebackend.response.ResponseResult;
 import github.benjamin.equipreservebackend.service.DeviceService;
+import github.benjamin.equipreservebackend.service.ReservationService;
 import github.benjamin.equipreservebackend.vo.DeviceUserVO;
+import github.benjamin.equipreservebackend.vo.TimeRangeVO;
 import lombok.RequiredArgsConstructor;
 import org.springframework.security.access.prepost.PreAuthorize;
 import org.springframework.web.bind.annotation.*;
 import org.springframework.web.multipart.MultipartFile;
 
 import java.io.IOException;
+import java.util.List;
 
 @RestController
 @RequiredArgsConstructor
@@ -19,6 +22,8 @@ public class DeviceController {
 
     private final DeviceService deviceService;
 
+    private final ReservationService reservationService;
+
     @PreAuthorize("hasRole('USER')")
     @GetMapping
     public ResponseResult<Page<DeviceUserVO>> getDevices(@RequestParam(defaultValue = "1") Integer page,
@@ -29,6 +34,13 @@ public class DeviceController {
         return ResponseResult.success(res);
     }
 
+    @PreAuthorize("hasRole('USER')")
+    @GetMapping ("/unavailable-times/{id}")
+    public ResponseResult<List<TimeRangeVO>> getUnavailableTimes(@PathVariable Long id) {
+        List<TimeRangeVO> res = reservationService.getUnavailableTimes(id);
+        return ResponseResult.success(res);
+    }
+
     @PreAuthorize("hasRole('DEVICE_ADMIN')")
     @PostMapping
     public ResponseResult<?> addDevice(@RequestBody Device device){

src/main/java/github/benjamin/equipreservebackend/mapper/TeamMapper.java

@@ -0,0 +1,9 @@
+package github.benjamin.equipreservebackend.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import github.benjamin.equipreservebackend.entity.Team;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface TeamMapper extends BaseMapper<Team> {
+}

src/main/java/github/benjamin/equipreservebackend/service/ReservationService.java

@@ -2,6 +2,7 @@ package github.benjamin.equipreservebackend.service;
 
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import github.benjamin.equipreservebackend.entity.Reservation;
+import github.benjamin.equipreservebackend.vo.TimeRangeVO;
 import github.benjamin.equipreservebackend.vo.UserReservationVO;
 
 import java.util.List;
@@ -13,4 +14,6 @@ public interface ReservationService {
     void addReservation(Reservation reservation);
 
     Page<UserReservationVO> getUserReservationVO(Long userId, Page<Reservation> pageRequest);
+
+    List<TimeRangeVO> getUnavailableTimes(Long id);
 }

src/main/java/github/benjamin/equipreservebackend/service/TeamService.java

@@ -0,0 +1,4 @@
+package github.benjamin.equipreservebackend.service;
+
+public interface TeamService {
+}

src/main/java/github/benjamin/equipreservebackend/service/impl/ReservationServiceImpl.java

@@ -5,17 +5,21 @@ import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import github.benjamin.equipreservebackend.constant.ReservationStatus;
 import github.benjamin.equipreservebackend.entity.Device;
 import github.benjamin.equipreservebackend.entity.Reservation;
+import github.benjamin.equipreservebackend.entity.Team;
 import github.benjamin.equipreservebackend.entity.User;
 import github.benjamin.equipreservebackend.mapper.DeviceMapper;
 import github.benjamin.equipreservebackend.mapper.ReservationMapper;
+import github.benjamin.equipreservebackend.mapper.TeamMapper;
 import github.benjamin.equipreservebackend.mapper.UserMapper;
 import github.benjamin.equipreservebackend.service.ReservationService;
 import github.benjamin.equipreservebackend.utils.PageUtil;
+import github.benjamin.equipreservebackend.vo.TimeRangeVO;
 import github.benjamin.equipreservebackend.vo.UserReservationVO;
 import lombok.RequiredArgsConstructor;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Service;
 
+import java.time.LocalDate;
 import java.time.LocalDateTime;
 import java.util.List;
 import java.util.Map;
@@ -33,6 +37,8 @@ public class ReservationServiceImpl implements ReservationService {
 
     private final UserMapper userMapper;
 
+    private final TeamMapper teamMapper;
+
     /**
      * 未来days天内有预约的设备显示为“有预约”
      */
@@ -41,15 +47,24 @@ public class ReservationServiceImpl implements ReservationService {
 
     @Override
     public List<Reservation> getApprovedReservationsByDeviceIds(List<Long> devicesIds) {
-        LocalDateTime endTime = LocalDateTime.now().plusDays(days);
+        LocalDate now = LocalDate.now();
+        LocalDate endTime = now.plusDays(days);
         return reservationMapper.selectList(new LambdaQueryWrapper<Reservation>()
                 .in(Reservation::getDeviceId, devicesIds)
                 .eq(Reservation::getStatus, ReservationStatus.APPROVED)
-                .lt(Reservation::getEndTime, endTime));
+                .between(Reservation::getStartTime, now, endTime));
     }
 
     @Override
     public void addReservation(Reservation reservation) {
+        User user = userMapper.selectById(reservation.getUserId());
+        Team team = teamMapper.selectById(user.getTeamId());
+        Device device = deviceMapper.selectById(reservation.getDeviceId());
+
+        reservation.setApplicantName(user.getName());
+        reservation.setApplicantTeam(team.getName());
+        reservation.setApplicantContact(user.getPhone());
+        reservation.setDeviceAdminId(device.getDeviceAdminId());
         reservation.setStatus(String.valueOf(ReservationStatus.PENDING_LEADER));
         reservationMapper.insert(reservation);
     }
@@ -94,4 +109,16 @@ public class ReservationServiceImpl implements ReservationService {
         res.setRecords(vos);
         return res;
     }
+
+    @Override
+    public List<TimeRangeVO> getUnavailableTimes(Long id) {
+        List<Reservation> reservations = reservationMapper.selectList(new LambdaQueryWrapper<Reservation>()
+                .eq(Reservation::getDeviceId, id)
+                .eq(Reservation::getStatus, "APPROVED")
+                .gt(Reservation::getEndTime, LocalDate.now()));
+
+        return reservations.stream()
+                .map(r -> new TimeRangeVO(r.getStartTime(), r.getEndTime()))
+                .toList();
+    }
 }

src/main/java/github/benjamin/equipreservebackend/vo/TimeRangeVO.java

@@ -0,0 +1,17 @@
+package github.benjamin.equipreservebackend.vo;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import java.time.LocalDate;
+
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class TimeRangeVO {
+
+    private LocalDate startTime;
+    private LocalDate endTime;
+
+}