package utils

import (
	"fmt"
	"log"
	"os"
)

func SaveCache2File(cacheStr string, fileName string) error {
	// 打开文件，如果文件不存在则创建
	file, err := os.OpenFile(fileName, os.O_CREATE|os.O_WRONLY|os.O_TRUNC, 0666)
	if err != nil {
		log.Println("Error opening file:", err)
		return err
	}
	defer file.Close()

	// 将变量写入文件
	_, err = file.WriteString(cacheStr)
	if err != nil {
		log.Println("Error writing to file:", err)
	}
	return err

}

func ReadCache2File(fileName string) (string, error) {
	// 打开文件
	file, err := os.Open(fileName)
	if err != nil {
		log.Println("Error opening file:", err)
		return "", err
	}
	defer file.Close()

	// 读取文件内容
	var content string
	_, err = fmt.Fscanf(file, "%s", &content)
	if err != nil {
		log.Println("Error reading from file:", err)
	}
	return content, err
}

func FileExists(filePath string) bool {
	_, err := os.Stat(filePath)
	if err != nil {
		if os.IsNotExist(err) {
			return false
		}
	}
	return true
}