package com.mm.util;

import lombok.extern.slf4j.Slf4j;
import org.springframework.util.ResourceUtils;

import java.io.*;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.StandardOpenOption;

/**
 * @author clown
 * * @date 2023/12/29
 */
@Slf4j
public class FileNumUtil {
    /**
     * 获取数据内容
     * @param path
     * @return
     */
    public static String readFileSum(String path){

        BufferedReader br = null;
        try{
            File file = ResourceUtils.getFile(path);
            if (!file.getParentFile().exists()){
                //文件夹不存在 生成
                file.getParentFile().mkdirs();
            }
            InputStreamReader reader = new InputStreamReader(new FileInputStream(file),"UTF-8");
            br = new BufferedReader(reader);
            return br.readLine();
        }catch (Exception e){
            log.error("数据解析失败，{}", e);
            return null;
        }finally {
            if(br != null){
                try {
                    br.close();
                } catch (IOException e) {
                }
            }
        }

    }

    public static boolean updateFile(String newText,String filePath){
        try {
            File file = new File(filePath);
            FileInputStream fis = new FileInputStream(file);
            byte[] data = new byte[(int) file.length()];
            fis.read(data);
            fis.close();

            String content = new String(data, "UTF-8");
            content = content.replaceAll("Old content", newText); // 替换旧内容为新内容

            FileOutputStream fos = new FileOutputStream(file);
            fos.write(content.getBytes("UTF-8"));
            fos.close();
        } catch (IOException e) {
            System.out.println("Error occurred: " + e.getMessage());
        }
        return true;
    }

    /**
     * 方法一:使用 FileWriter 写文件
     * @param filePath 文件目录
     * @param content  待写入内容
     * @throws IOException
     */
    public static void fileWriterSql( String content, String filePath) throws IOException {
        OutputStreamWriter outputStreamWriter = null;
        try {
            File file = new File(filePath);
            if (!file.exists()){
                file.createNewFile();
            }
            FileOutputStream outputStream = new FileOutputStream(file);
            if (outputStream != null){
                outputStreamWriter = new OutputStreamWriter(outputStream, "utf-8");
                outputStreamWriter.write(content);
                outputStreamWriter.flush();
            }
        }
        catch (IOException e) {
            e.getMessage();
        }
        finally {
            try {
                if (outputStreamWriter != null){
                    outputStreamWriter.close();
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
}