package main

import (
	"fmt"
	"os/exec"
	"strconv"
	"strings"
)

func GetDirectoryDiskUsed(directories []string) (uint64, error) {
	fmt.Println(strings.Join(directories, " "))
	cmd := exec.Command("du", "-s", strings.Join(directories, " "))
	output, err := cmd.CombinedOutput()
	if err != nil {
		return 0, err
	}
	lines := strings.Split(string(output), "\n")
	fmt.Println(lines)
	sum := uint64(0)
	for _, line := range lines {
		fields := strings.Fields(line)
		parseUint, err := strconv.ParseUint(fields[0], 10, 64)
		fmt.Println("parseUint", parseUint)
		if err != nil {
			return 0, err
		}
		sum += parseUint
	}

	return sum, nil
}

func main() {
	diskUsed, err := GetDirectoryDiskUsed([]string{"/root/cicv-data-closedloop", "/root/pjirobot/data/cicv-data-closedloop"})
	if err != nil {
		return
	}
	fmt.Println("diskUsed", diskUsed)
}