/*

 * Copyright (c) 2024 Huawei Technologies Co., Ltd.

 * openFuyao is licensed under Mulan PSL v2.

 * You can use this software according to the terms and conditions of the Mulan PSL v2.

 * You may obtain a copy of Mulan PSL v2 at:

 *          http://license.coscl.org.cn/MulanPSL2

 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,

 * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,

 * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.

 * See the Mulan PSL v2 for more details.

 */



package utils



import (

	"fmt"

	"os"

	"strings"

)



// GetNodeName retrieves the NODE_NAME environment variable.

// It returns the node name as a string if found, otherwise an error.

func GetNodeName() (string, error) {

	nodeName := os.Getenv("NODE_NAME")

	if nodeName == "" {

		return "", fmt.Errorf("NODE_NAME environment variable not set")

	}

	return nodeName, nil

}



// IntSliceToFormattedString converts an integer slice into a formatted string.

// It returns a string where integers are comma-separated.

func IntSliceToFormattedString(slice []int) string {

	var sb strings.Builder

	for i, num := range slice {

		if i > 0 {

			sb.WriteString(", ")

		}

		sb.WriteString(fmt.Sprintf("%d", num))

	}

	return sb.String()

}