package com.infoloop.tianting.advice;

import cn.dev33.satoken.exception.SaTokenException;
import com.infoloop.tianting.exception.ClientEndException;
import com.infoloop.tianting.exception.ClientEndExceptions;
import com.infoloop.tianting.model.common.ResponseResult;
import io.grpc.StatusRuntimeException;
import lombok.extern.slf4j.Slf4j;
import org.springframework.http.HttpStatus;
import org.springframework.validation.BindException;
import org.springframework.validation.ObjectError;
import org.springframework.web.HttpMediaTypeNotSupportedException;
import org.springframework.web.HttpRequestMethodNotSupportedException;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseStatus;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import javax.validation.ConstraintViolation;
import javax.validation.ConstraintViolationException;
import javax.validation.ValidationException;
import java.util.stream.Collectors;


@RestControllerAdvice
@Slf4j
public class ExceptionAdvice {

    @ResponseStatus(HttpStatus.BAD_REQUEST)
    @ExceptionHandler(value = {BindException.class, ValidationException.class, MethodArgumentNotValidException.class})
    public ResponseResult<String> handleValidationException(Exception e) {
        String resp = null;
        if (e instanceof MethodArgumentNotValidException) {
            MethodArgumentNotValidException ex = (MethodArgumentNotValidException) e;
            resp = ex.getBindingResult().getAllErrors().stream()
                    .map(ObjectError::getDefaultMessage)
                    .collect(Collectors.joining("; "));
        } else if (e instanceof ConstraintViolationException) {
            ConstraintViolationException ex = (ConstraintViolationException) e;
            resp = ex.getConstraintViolations().stream()
                    .map(ConstraintViolation::getMessage)
                    .collect(Collectors.joining("; "));
        } else if (e instanceof BindException) {
            BindException ex = (BindException) e;
            resp = ex.getAllErrors().stream()
                    .map(ObjectError::getDefaultMessage)
                    .collect(Collectors.joining("; "));
        } else if (e instanceof ValidationException) {
            ValidationException ex = (ValidationException) e;
            resp = ex.getMessage();
        }
        return ResponseResult.validateFailed(resp);
    }

    @ResponseStatus(HttpStatus.BAD_REQUEST)
    @ExceptionHandler(ClientEndExceptions.ParameterInvalid.class)
    public ResponseResult<Void> handleParameterInvalid(final ClientEndExceptions.ParameterInvalid e) {
        return ResponseResult.validateFailed(e.getMessage());
    }

    @ResponseStatus(HttpStatus.UNAUTHORIZED)
    @ExceptionHandler(value = SaTokenException.class)
    public ResponseResult<Void> handleSaTokenException(SaTokenException e) {
        log.warn("sa error: {}", e.getMessage());
        return ResponseResult.unauthorized(e.getMessage());
    }

    @ResponseStatus(HttpStatus.UNAUTHORIZED)
    @ExceptionHandler(ClientEndExceptions.AuthenticationFailure.class)
    public ResponseResult<Void> handleAuthenticationFailure(final ClientEndExceptions.AuthenticationFailure e) {
        return ResponseResult.unauthorized(e.getMessage());
    }

    @ResponseStatus(HttpStatus.FORBIDDEN)
    @ExceptionHandler(ClientEndExceptions.OperationForbidden.class)
    public ResponseResult<Void> handleForbiddenOperation(final ClientEndExceptions.OperationForbidden e) {
        return ResponseResult.forbidden(e.getMessage());
    }

    @ResponseStatus(HttpStatus.NOT_FOUND)
    @ExceptionHandler(ClientEndExceptions.ResourceNotFound.class)
    public ResponseResult<Void> handleResourceNotFound(final ClientEndExceptions.ResourceNotFound e) {
        return ResponseResult.notFound(e.getMessage());
    }

    @ResponseStatus(HttpStatus.METHOD_NOT_ALLOWED)
    @ExceptionHandler(value = {HttpRequestMethodNotSupportedException.class, HttpMediaTypeNotSupportedException.class})
    public ResponseResult<Void> handleNotSupport(final Exception e) {
        return ResponseResult.notAllowed(e.getMessage());
    }

    @ResponseStatus(HttpStatus.REQUEST_TIMEOUT)
    @ExceptionHandler(ClientEndExceptions.RequestTimeout.class)
    public ResponseResult<Void> handleRequestTimeout(final ClientEndExceptions.RequestTimeout e) {
        return ResponseResult.requestTimeout(e.getMessage());
    }

    @ResponseStatus(HttpStatus.LOCKED)
    @ExceptionHandler(ClientEndExceptions.ResourceLocked.class)
    public ResponseResult<Void> handleResourceLocked(final ClientEndExceptions.ResourceLocked e) {
        return ResponseResult.locked(e.getMessage());
    }

    @ResponseStatus(HttpStatus.NOT_ACCEPTABLE)
    @ExceptionHandler(ClientEndException.class)
    public ResponseResult<String> handleClientEndException(final ClientEndException e) {
        log.warn("client end exception; code:{}, message:{}, data:{}", e.getCode(), e.getMessage(), e.getData());
        return ResponseResult.failed(e.getCode(), e.getMessage(), e.getData());
    }

    @ResponseStatus(HttpStatus.INTERNAL_SERVER_ERROR)
    @ExceptionHandler(StatusRuntimeException.class)
    public ResponseResult<Void> handleStatusRuntimeException(StatusRuntimeException e) {
        log.error("micro service error;", e);
        return ResponseResult.failed(e.getMessage());
    }

    @ResponseStatus(HttpStatus.INTERNAL_SERVER_ERROR)
    @ExceptionHandler(Exception.class)
    public ResponseResult<Void> handleException(Exception e) {
        errorFixedPosition(e);
        log.error("fatal error;", e);
        return ResponseResult.failed(e.getMessage());
    }

    /**
     * 定位错误发生的位置
     *
     * @param e 错误参数
     */
    private void errorFixedPosition(Exception e) {
        final var stackTrace = e.getStackTrace()[0];
        final var className = stackTrace.getClassName();
        final var lineNumber = stackTrace.getLineNumber();
        final var methodName = stackTrace.getMethodName();
        log.error("=============================错误信息如下=============================");
        log.error("_> 异常定位：");
        log.error("_> 类[{}] ==> 方法[{}] ==> 所在行[{}]", className, methodName, lineNumber);
        if (e.getMessage() != null && !e.getMessage().isEmpty()) {
            log.error("_> 错误信息:{}", e.getMessage());
        }
    }
}