package com.goi.erp.common.exception;

import java.time.LocalDateTime;
import java.util.HashMap;
import java.util.Map;

import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.security.access.AccessDeniedException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;

@RestControllerAdvice
public class GlobalExceptionHandler {

    @ExceptionHandler(RuntimeException.class)
    public ResponseEntity<?> handleRuntimeException(RuntimeException ex) {

        Map<String, Object> body = new HashMap<>();
        body.put("error", ex.getMessage());
        body.put("timestamp", LocalDateTime.now());
        body.put("status", HttpStatus.BAD_REQUEST.value());

        return ResponseEntity.badRequest().body(body);
    }
    
    // 모든 예외 처리
    @ExceptionHandler(Exception.class)
    public ResponseEntity<Map<String, Object>> handleAllExceptions(Exception ex) {
        Map<String, Object> body = new HashMap<>();
        body.put("timestamp", LocalDateTime.now());
        body.put("status", HttpStatus.INTERNAL_SERVER_ERROR.value());
        body.put("error", "Internal Server Error");
        body.put("message", ex.getMessage());
        return new ResponseEntity<>(body, HttpStatus.INTERNAL_SERVER_ERROR);
    }
    
    // 권한 없음
    @ExceptionHandler(AccessDeniedException.class)
    public ResponseEntity<Map<String, Object>> handleAccessDenied(AccessDeniedException ex) {
        Map<String, Object> body = new HashMap<>();
        body.put("timestamp", LocalDateTime.now());
        body.put("status", HttpStatus.FORBIDDEN.value());
        body.put("error", "Forbidden");
        body.put("message", ex.getMessage());
        return new ResponseEntity<>(body, HttpStatus.FORBIDDEN);
    }
    
    //
    @ExceptionHandler(JwtExpiredException.class)
    public ResponseEntity<Map<String, String>> handleJwtExpired(JwtExpiredException ex) {
        Map<String, String> body = Map.of("error", "JWT expired", "message", ex.getMessage());
        return ResponseEntity.status(HttpStatus.UNAUTHORIZED).body(body);
    }

    @ExceptionHandler(JwtInvalidException.class)
    public ResponseEntity<Map<String, String>> handleJwtInvalid(JwtInvalidException ex) {
        Map<String, String> body = Map.of("error", "Invalid JWT", "message", ex.getMessage());
        return ResponseEntity.status(HttpStatus.UNAUTHORIZED).body(body);
    }
}