package nstatus

import (
	"google.golang.org/grpc/codes"
	"google.golang.org/grpc/status"
)

//var table = map[codes.Code]int{
//	codes.OK:                 code.StatusOK,
//	codes.Canceled:           code.StatusRequestTimeout,
//	codes.Unknown:            code.StatusInternalServerError,
//	codes.InvalidArgument:    code.StatusBadRequest,
//	codes.DeadlineExceeded:   code.StatusGatewayTimeout,
//	codes.NotFound:           code.StatusNotFound,
//	codes.AlreadyExists:      code.StatusConflict,
//	codes.PermissionDenied:   code.StatusForbidden,
//	codes.ResourceExhausted:  code.StatusTooManyRequests,
//	codes.FailedPrecondition: code.StatusBadRequest,
//	codes.Aborted:            code.StatusConflict,
//	codes.OutOfRange:         code.StatusBadRequest,
//	codes.Unimplemented:      code.StatusNotImplemented,
//	codes.Internal:           code.StatusInternalServerError,
//	codes.Unavailable:        code.StatusServiceUnavailable,
//	codes.DataLoss:           code.StatusInternalServerError,
//	codes.Unauthenticated:    code.StatusUnauthorized,
//}

const GrpcResultTypeKey = "_RESULT_TYPE"

// WrapGrpcErr 将grpc-error转换为 Result
func WrapGrpcErr(err error) *Result {
	gErr := status.Convert(err)
	if gErr == nil {
		return nil
	}
	//if c, ok := table[gErr.Code()]; ok {
	//	return NewResult(c, gErr.Message(), RpcErr)
	//}
	return NewResult(int(gErr.Code()), gErr.Message(), RpcErr)
}

// IsGrpcErr return an error if grpc status
func IsGrpcErr(err error) bool {
	if err == nil {
		return false
	}

	_, ok := err.(interface {
		GRPCStatus() *status.Status
	})

	return ok
}

/**
RPC错误
*/

func NewGrpcErr(code codes.Code, msg string) error {
	return NewResult(int(code), msg, RpcErr)
}

// NewGrpcInternalErr returns status error with Internal error code.
func NewGrpcInternalErr(msg string) error {
	return NewGrpcErr(codes.Internal, msg)
}

// NewGrpcInvalidArgumentErr returns status error with InvalidArgument error code.
func NewGrpcInvalidArgumentErr(msg string) error {
	return NewGrpcErr(codes.InvalidArgument, msg)
}

// NewGrpcNotFoundErr returns status error with NotFound error code.
func NewGrpcNotFoundErr(msg string) error {
	return NewGrpcErr(codes.NotFound, msg)
}

// NewGrpcAlreadyExistsErr returns status error with AlreadyExists error code.
func NewGrpcAlreadyExistsErr(msg string) error {
	return NewGrpcErr(codes.AlreadyExists, msg)
}

// NewGrpcUnauthenticatedErr returns status error with Unauthenticated error code.
func NewGrpcUnauthenticatedErr(msg string) error {
	return NewGrpcErr(codes.Unauthenticated, msg)
}

// NewGrpcPermissionDeniedErr returns status error with PermissionDenied error code.
func NewGrpcPermissionDeniedErr(msg string) error {
	return NewGrpcErr(codes.PermissionDenied, msg)
}