Merge pull request #53 from PEC-CSS/feat-next-event

Feat next event API

src/main/java/com/pecacm/backend/controllers/EventsController.java

@@ -4,13 +4,18 @@
 import com.pecacm.backend.entities.Event;
 import com.pecacm.backend.model.EndEventDetails;
 import com.pecacm.backend.services.EventService;
+import jakarta.annotation.Nonnull;
 import jakarta.annotation.Nullable;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.format.annotation.DateTimeFormat;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.security.access.prepost.PreAuthorize;
 import org.springframework.web.bind.annotation.*;
 
+import java.time.LocalDate;
+import java.time.LocalDateTime;
+import java.time.LocalTime;
 import java.util.List;
 
 @RestController
@@ -90,4 +95,12 @@ public ResponseEntity<Void> endEvent(@PathVariable Integer eventId, @RequestBody
         eventService.endEvent(eventId, endEventDetails);
         return ResponseEntity.ok().build();
     }
+
+    @GetMapping("/next")
+    @PreAuthorize(Constants.HAS_ANY_ROLE)
+    public ResponseEntity<Event> nextEvent(@RequestParam("date") @DateTimeFormat(iso = DateTimeFormat.ISO.DATE) @Nonnull LocalDate date) {
+        LocalDateTime currDateTime = LocalDateTime.of(date, LocalTime.of(0, 0));
+        Event nextEvent = eventService.getNextEvent(currDateTime);
+        return ResponseEntity.ok(nextEvent);
+    }
 }

src/main/java/com/pecacm/backend/exception/ExceptionResponseHandler.java

@@ -1,9 +1,11 @@
 package com.pecacm.backend.exception;
 
 import com.pecacm.backend.response.ErrorResponse;
+import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.ControllerAdvice;
 import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.method.annotation.MethodArgumentTypeMismatchException;
 
 @ControllerAdvice
 public class ExceptionResponseHandler {
@@ -12,4 +14,11 @@ public class ExceptionResponseHandler {
     public ResponseEntity<ErrorResponse> handleAcmException(AcmException acmException) {
         return ResponseEntity.status(acmException.getStatus()).body(new ErrorResponse(acmException.getStatus().getReasonPhrase(), acmException.getMessage()));
     }
+
+    @ExceptionHandler(MethodArgumentTypeMismatchException.class)
+    public ResponseEntity<ErrorResponse> handleConversionException(MethodArgumentTypeMismatchException ex) {
+        String errorMessage = "Invalid parameter value. " + ex.getName() + " should be of type " + ex.getRequiredType();
+        ErrorResponse errorResponse = new ErrorResponse(HttpStatus.BAD_REQUEST.getReasonPhrase(), errorMessage);
+        return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(errorResponse);
+    }
 }

src/main/java/com/pecacm/backend/repository/EventRepository.java

@@ -2,13 +2,19 @@
 
 import com.pecacm.backend.entities.Event;
 import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.query.Param;
 import org.springframework.stereotype.Repository;
 
+import java.time.LocalDateTime;
 import java.util.List;
 
 @Repository
 public interface EventRepository extends JpaRepository<Event, Integer> {
     List<Event> findByBranch(String branch);
 
     List<Event> findAllByEndedFalse();
+
+    @Query("SELECT e from Event e WHERE e.startDate > :currDateTime ORDER BY e.startDate ASC LIMIT 1")
+    Event getNearestEvent(@Param("currDateTime") LocalDateTime currDate);
 }

src/main/java/com/pecacm/backend/services/EventService.java

@@ -37,7 +37,6 @@ public EventService(EventRepository eventRepository, AttendanceRepository attend
     }
 
     // TODO : change all GET events to pageable repositories
-
     public List<Event> getAllEvents() {
         return new ArrayList<>(eventRepository.findAll());
     }
@@ -167,4 +166,8 @@ public void endEvent(Integer eventId, EndEventDetails endEventDetails) {
         eventRepository.save(event);
 
     }
+
+    public Event getNextEvent(LocalDateTime currDateTime) {
+        return eventRepository.getNearestEvent(currDateTime);
+    }
 }