package main

//The below C code is compiled and executed using CGo.

//#include <stdio.h>
//#include <unistd.h>
//#include <fcntl.h>
//#include <errno.h>
//#include <sys/ioctl.h>
//
//#include <linux/usbdevice_fs.h>
//
//
//int resetUSB(char *filearg)
//{
//    const char *filename;
//    int fd;
//    int rc;
//
//    filename = filearg;
//
//    fd = open(filename, O_WRONLY);
//    if (fd < 0) {
//        perror("Error opening output file");
//        return 1;
//    }
//
//    printf("Resetting USB device %s\n", filename);
//    rc = ioctl(fd, USBDEVFS_RESET, 0);
//    if (rc < 0) {
//        perror("Error in ioctl");
//        return 1;
//    }
//    printf("Reset successful\n");
//
//    close(fd);
//    return 0;
//}
import "C"
import (
	"bufio"
	"bytes"
	"fmt"
	"log"
	"os"
	"os/exec"
	"strings"
)

func main() {
	lsusbCmd := exec.Command("lsusb")
	lsusbOut, err := lsusbCmd.Output()
	if err != nil {
		log.Fatalf("could not get output of lsusb: %v", err)
	}

	scanner := bufio.NewScanner(bytes.NewReader(lsusbOut))
	for scanner.Scan() {
		if strings.Contains(scanner.Text(), "Bose Corp.") {
			fields := strings.Fields(scanner.Text())
			busID := fields[1]
			devID := fields[3][0:3]
			usbFilename := C.CString(fmt.Sprintf("/dev/bus/usb/%s/%s", busID, devID))
			C.resetUSB(usbFilename)
		}
	}
	if err := scanner.Err(); err != nil {
		fmt.Fprintln(os.Stderr, "reading standard input:", err)
	}
}