package com.ots.project.tool;
import lombok.extern.slf4j.Slf4j;
import java.io.*;

@Slf4j
public class ShellTool {
    
    public static String execLibreofficeCommand(String type, String sourcePath, String targetPath) {
        String os = System.getProperty("os.name");
        StringBuilder builder = new StringBuilder();
        if (os.toLowerCase().startsWith("mac")) {
            builder.append("/Applications/LibreOffice.app/Contents/MacOS/soffice --headless --convert-to ");
        } else if(os.contains("Windows")){
            builder.append("cmd /c start soffice --headless --convert-to ");
        } else {
            builder.append("libreoffice6.4 --headless --convert-to ");
        }

        builder.append(type).append(" ");
        builder.append("--outdir " + targetPath).append(" ");
        builder.append(sourcePath).append(" ");
        
        try {
            File file = new File(sourcePath.replaceAll(".docx", ".pdf"));
            if (file.exists()) {
                file.delete();
            }
        } catch (Exception e) {
        }
        return run_cmd(builder.toString());
    }

    public static String run_cmd(String strcmd) {
        //
        Runtime rt = Runtime.getRuntime(); //Runtime.getRuntime()返回当前应用程序的Runtime对象
        Process ps = null;  //Process可以控制该子进程的执行或获取该子进程的信息。
        try {
            ps = rt.exec(strcmd);   //该对象的exec()方法指示Java虚拟机创建一个子进程执行指定的可执行程序，并返回与该子进程对应的Process对象实例。
            ps.waitFor();  //等待子进程完成再往下执行。
        } catch (IOException e1) {
            e1.printStackTrace();
        } catch (InterruptedException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        int i = ps.exitValue();  //接收执行完毕的返回值
        if (i == 0) {
            System.out.println("执行完成.");
        } else {
            System.out.println("执行失败.");
        }

        ps.destroy();  //销毁子进程
        ps = null;

        return null;
    }

    private static String exec(String command) {
        String returnString = "";
        Runtime runTime = Runtime.getRuntime();
        if (runTime == null) {
            System.err.println("Create runtime false!");
        }
        try {
            Process pro = runTime.exec(command);
            BufferedReader input = new BufferedReader(new InputStreamReader(pro.getInputStream()));
            PrintWriter output = new PrintWriter(new OutputStreamWriter(pro.getOutputStream()));
            String line;
            while ((line = input.readLine()) != null) {
                returnString = returnString + line + "\n";
            }
            input.close();
            output.close();
            pro.destroy();
        } catch (IOException ex) {
            log.error("执行PDF转换Shell失败：{}", ex.getMessage(), ex);
        }
        return returnString;
    }
    public static void main(String[] args) {
        System.out.println(exec("libreoffice6.4 --headless --convert-to  /root/小红.docx 小红.pdf "));
    }
}