#!/bin/bash

SERIAL_PORT="/dev/ttyGS0"
USB_FILE="/usb_share.img"
USB_MOUNT="/mnt/usb_share/"
LOCAL_DIR="/var/local/talia/"
FTP_DIR="/home/birikim/out/"

while sleep 3
do
    if [ -z "$(cat /sys/kernel/config/usb_gadget/g1/UDC)" ] && \
       [ -n "$(ls -A $FTP_DIR)" ]
    then
        mount $USB_FILE $USB_MOUNT
        rm -rf $USB_MOUNT/talia-sd
        mkdir $USB_MOUNT/talia-sd

        # wait writes to be completed
        while inotifywait -t 60 -r -e close_write -e moved_to "$FTP_DIR"
        do
            true
        done

        # lock dir and mv files to USB storage
        chown -R root:root $FTP_DIR
        cd $FTP_DIR
        for i in $(ls -A $FTP_DIR)
        do
            mv "$i" $USB_MOUNT/talia-sd/
        done
        chown -R birikim:birikim $FTP_DIR
        cd $USB_MOUNT/talia-sd/
        # md5sum
        find -type f -exec md5sum {} \; > /tmp/talia-md5sum.txt
        sed -i "s/.\///" /tmp/talia-md5sum.txt
        cd /tmp
        mv talia-md5sum.txt $USB_MOUNT/talia-sd/
        umount $USB_MOUNT

        # expose USB storage
        /root/scripts/expose_usb.sh
        # wait serial
        systemctl start talia-serial-wait.service
    fi
done