package com.iailab.common.utils;

import com.alibaba.fastjson.JSONObject;
import lombok.extern.slf4j.Slf4j;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

/**
 * @author PanZhibao
 * @Description
 * @createTime 2023年01月11日 11:03:00
 */
@Slf4j
public class PythonUtil {

    public static Map<String, Object> execPy(String[] command) throws Exception {
        List<String> lines = new ArrayList<>();
        try {
            Process proc = Runtime.getRuntime().exec(command);
            BufferedReader in = new BufferedReader(new InputStreamReader(proc.getInputStream(), "GBK"));
            String line = null;

            while ((line = in.readLine()) != null) {
                log.info(line);
                lines.add(line);
            }
            // 0表示成功，1表示远程调用失败，2表示python脚本出错
            int waitFor = proc.waitFor();
            log.info("waitFor=" + waitFor);
            if (waitFor == 1) {
                throw new Exception("远程调用失败");
            } else if (waitFor == 2) {
                throw new Exception("python脚本出错");
            } else if (waitFor == 9009) {
                throw new Exception("环境变量配置错误");
            } else if (waitFor != 0) {
                throw new Exception("调用python失败");
            }
        } catch (Exception ex) {
            log.error("运行python异常！command=" + command.toString());
            throw ex;
        }
        return JSONObject.parseObject(lines.get(0));
    }
}