// Copyright 2019 github.com. All rights reserved.
// Use of this source code is governed by github.com.

package id

import (
	"context"
	"fmt"
	"strconv"
)

// GetUniqueID 获取唯一id (分布式)
func GetUniqueID() (uint64, error) {
	if sf == nil {
		return 0, fmt.Errorf("sf is nil.")
	}
	return sf.NextID()
}

// GetRequestId 生成request id
// 如果开启了jaeger trace,则使用其生成的trace id 作为request id
func GetRequestId(ctx context.Context) string {
	if rid, ok := ctx.Value("RequestId").(string); ok && rid != "" {
		return rid
	}
	id, _ := GetUniqueID()
	newId := strconv.Itoa(int(id))
	ctx = context.WithValue(ctx, "RequestId", newId)
	return newId
}