package errx

import (
	"fmt"

	"google.golang.org/grpc/codes"

	"google.golang.org/grpc/status"
)

type CodeErr struct {
	code       ErrCode // 错误编码
	msg        string  // 错误消息
	innerError error
}

func (e *CodeErr) GetErrCode() ErrCode {
	return e.code
}

func (e *CodeErr) InnerError() error {
	return e.innerError
}

// EqualCode 对比错误码是否相等
func EqualCode(err error, code ErrCode) bool {
	return status.Code(err) == codes.Code(code)
}

func (e *CodeErr) Error() string {
	return fmt.Sprintf("[%d]%s", e.code, e.msg)
}

func NewCodeErrWithMsg(code ErrCode, msg string, inner error, opts ...CodeErrOption) *CodeErr {
	params := append([]CodeErrOption{}, WithCodeOption(code), WithMsgOption(msg), WithErrorOption(inner))
	params = append(params, opts...)
	return NewCodeError(params...)
}

func NewCodeError(opts ...CodeErrOption) *CodeErr {
	codeErr := CodeErr{
		msg:  "系统错误",
		code: SERVER_COMMON_ERROR,
	}

	for _, opt := range opts {
		opt(&codeErr)
	}

	if codeErr.code != SERVER_COMMON_ERROR && len(codeErr.msg) == 0 {
		if m, ok := message[codeErr.code]; ok {
			codeErr.msg = m
		}
	}

	return &codeErr
}