package com.pmu.betengine.exception;

import lombok.Data;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;

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

@RestControllerAdvice
public class GlobalExceptionHandler {

    @ExceptionHandler(RuntimeException.class)
    public ResponseEntity<ErrorResponse> handleRuntimeException(RuntimeException ex) {
        ErrorResponse error = new ErrorResponse(
                HttpStatus.BAD_REQUEST.value(),
                ex.getMessage(),
                LocalDateTime.now()
        );
        return new ResponseEntity<>(error, HttpStatus.BAD_REQUEST);
    }

    @ExceptionHandler(MethodArgumentNotValidException.class)
    public ResponseEntity<Map<String, String>> handleValidationExceptions(MethodArgumentNotValidException ex) {
        Map<String, String> errors = new HashMap<>();
        ex.getBindingResult().getFieldErrors().forEach(error ->
                errors.put(error.getField(), error.getDefaultMessage()));
        return new ResponseEntity<>(errors, HttpStatus.BAD_REQUEST);
    }

    @Data
    public static class ErrorResponse {
        private int status;
        private String message;
        private LocalDateTime timestamp;

        public ErrorResponse(int status, String message, LocalDateTime timestamp) {
            this.status = status;
            this.message = message;
            this.timestamp = timestamp;
        }
    }
}