package com.weiwojc.exception;

import com.weiwojc.model.common.Result;
import org.springframework.security.authentication.BadCredentialsException;
import org.springframework.security.authentication.LockedException;
import org.springframework.validation.BindingResult;
import org.springframework.validation.FieldError;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import java.util.List;
import java.util.stream.Collectors;

@RestControllerAdvice
public class GlobalExceptionHandler {

    @ExceptionHandler(RuntimeException.class)
    public Result<?> handleRuntimeException(RuntimeException e) {
        return Result.badRequest(e.getMessage());
    }

    @ExceptionHandler(BadCredentialsException.class)
    public Result<?> handleBadCredentialsException(BadCredentialsException e) {
        return Result.unauthorized(e.getMessage());
    }

    @ExceptionHandler(LockedException.class)
    public Result<?> handleLockedException(LockedException e) {
        return Result.forbidden(e.getMessage());
    }

    @ExceptionHandler(MethodArgumentNotValidException.class)
    public Result<?> handleValidationException(MethodArgumentNotValidException e) {
        BindingResult bindingResult = e.getBindingResult();
        List<FieldError> fieldErrors = bindingResult.getFieldErrors();
        String errorMessage = fieldErrors.stream()
                .map(FieldError::getDefaultMessage)
                .collect(Collectors.joining(", "));
        return Result.badRequest(errorMessage);
    }

    @ExceptionHandler(Exception.class)
    public Result<?> handleException(Exception e) {
        return Result.error("服务器内部错误：" + e.getMessage());
    }
}