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src/main/java/com/example/nto/GlobalExceptionHandler.java

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+package com.example.nto;
+
+import com.example.nto.exception.AlreadyBookedException;
+import com.example.nto.exception.CodeNotFoundException;
+import com.example.nto.exception.InvalidRequestException;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.http.converter.HttpMessageNotReadableException;
+import org.springframework.web.bind.annotation.ControllerAdvice;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+
+@ControllerAdvice
+public class GlobalExceptionHandler {
+
+    @ExceptionHandler(InvalidRequestException.class)
+    public ResponseEntity<String> handleInvalidRequest(InvalidRequestException ex) {
+        return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(ex.getMessage());
+    }
+
+    @ExceptionHandler(CodeNotFoundException.class)
+    public ResponseEntity<String> handleCodeNotFound(CodeNotFoundException ex) {
+        return ResponseEntity.status(HttpStatus.UNAUTHORIZED).body(ex.getMessage());
+    }
+
+    @ExceptionHandler(AlreadyBookedException.class)
+    public ResponseEntity<String> handleAlreadyBooked(AlreadyBookedException ex) {
+        return ResponseEntity.status(HttpStatus.CONFLICT).body(ex.getMessage());
+    }
+
+    // Обработка ошибок парсинга JSON
+    @ExceptionHandler(HttpMessageNotReadableException.class)
+    public ResponseEntity<String> handleJsonParseError(HttpMessageNotReadableException ex) {
+        return ResponseEntity.status(HttpStatus.BAD_REQUEST).body("что-то пошло не так");
+    }
+}