#!/bin/sh
###########################################################################
#
# Copyright (c) 2019-2022 Diality Inc. - All Rights Reserved.
#
# THIS CODE MAY NOT BE COPIED OR REPRODUCED IN ANY FORM, IN PART OR IN
# WHOLE, WITHOUT THE EXPLICIT PERMISSION OF THE COPYRIGHT OWNER.
#
# @file    run.sh
#
# @author  (last)      Behrouz NematiPour
# @date    (last)      18-Feb-2022
# @author  (original)  Behrouz NematiPour
# @date    (original)  28-Oct-2019
#
############################################################################

function currDate()
{
    echo $(date +"%d%m%Y%H%M%S")
}


#DO NOT MODIFY VARIABLES
#unless the denali applicaiton is updated as well to match.
HOME=/home/root
SDCARD_DEV=/dev/mmcblk1p1
SDCARD_MNT=/media/sd-card
USB_DEV=/dev/sda1
USB_MNT=/media/usb
POSTLOG=$HOME/post.log
POSTERR=$HOME/post.err
POSTOUT=$HOME/post.out
POSTMSG_CANBUS="CANBus passed"
POSTMSG_SDCARD="SD-CARD passed"
POSTMSG_TOUCH="Touch passed"
POSTMSG_RTC="RTC passed"
POSTMSG_WIFI="WiFi passed"
POSTMSG_BLUETOOTH="Bluetooth passed"
POSTMSG_SHASUM="App shasum passed"

# cleanup the POST log file
echo "Start: $(currDate)" > $POSTLOG
echo "" > $POSTERR
echo "" > $POSTOUT


#create folders for sd-card and usb if not exist
mkdir -p $SDCARD_MNT
mkdir -p $USB_MNT


# ---------------------------------------- UPDATE
#mounting usb
mount $USB_DEV $USB_MNT
if [ $? -eq 0 ]; then
    echo ":: USB drive found and mounted on $USB_MNT"
fi
#A simple none secure update
if [ -e $USB_MNT/denali ]; then
    mv $HOME/denali $HOME/denali.$(currDate)
    cp $USB_MNT/denali $HOME/denali
    # check if update where successful
    if [ $? -eq 0 ]; then
        sync;sync;sync;
        echo ":: Denali application has been updated with the one on the USB drive"
        mv $USB_MNT/denali $USB_MNT/denali.updated
        sync;sync;sync;
    fi
fi


# ----------------------------------------  SETUP & POST
#Here only passed is logged and if nothing added to the post.log means it failed.

#setting up can interface ----------------- CANBus
#current settings can be retrieved by the command below
#$ ip -details -statistics link show can0
ip link set can0 up type can bitrate 250000 restart-ms 100
ifconfig can0 txqueuelen 4000
candump can0 -T1 # check if candump can successfully use the port. will terminate in 1ms
if [ $? -eq 0 ]; then
    echo $POSTMSG_CANBUS >> $POSTLOG
fi


#mounting sdcard -------------------------- SD-CARD
mount $SDCARD_DEV $SDCARD_MNT
if [ $? -eq 0 ]; then
    SDTEST="$(mount | grep "$SDCARD_DEV on $SDCARD_MNT.*(rw,")"
    if ! [ -z "$SDTEST" ]; then
        SDINFO="$(df -h | grep -i $SDCARD_MNT)"
        echo $POSTMSG_SDCARD >> $POSTLOG
        echo $SDTEST         >> $POSTLOG
        echo $SDINFO         >> $POSTLOG
    fi
fi


#test the touch screen -------------------- Touch
#if loaded successful it has a long description with "Touch" keyword, 'T' capital.
#if fails has a one line error with "touch" keyword, 't' non-capital.
#if there is other issues can even be empty.
TSTEST="$(dmesg | grep Touch)"
if [ $? -eq 0 ]; then
    echo $POSTMSG_TOUCH >> $POSTLOG
fi


#test the RTC ----------------------------- RTC
#may not be an accurate test but sufficient for now
#and could not find a way to get the rtc clock with the higher resolusion
#it should not be confused with date command which is system date/time and not hwclock
hwclock -r # if there is any issue with rtc hwclock will show errors
if [ $? -eq 0 ]; then
    RTC1=$(cat /sys/class/rtc/rtc0/since_epoch)
    sleep 1
    RTC2=$(cat /sys/class/rtc/rtc0/since_epoch)
    if [ $(($RTC2 - $RTC1)) -eq 1 ]; then
        echo $POSTMSG_RTC >> $POSTLOG
    fi
fi


# stop the connection manager daemon
killall connmand


# setup bluetooth
/usr/share/silex-uart/silex-uart.sh start 1>> $POSTOUT 2>> $POSTERR
sleep 5
hciconfig hci0 up
if [ $? -eq 0 ]; then
    echo $POSTMSG_BLUETOOTH >> $POSTLOG
fi


# setup wifi
killall wpa_supplicant 1>> $POSTOUT 2>> $POSTERR
if [[ ! -z $(dmesg | grep "wlan: driver loaded") ]]; then
    echo $POSTMSG_WIFI >> $POSTLOG
fi


#check the denali applicatoin checksum
SHA_ACT=$(tail -c  83 $HOME/denali |                      cut -c19-82)
SHA_EXP=$(head -c -83 $HOME/denali | sha256sum -b --tag | cut -c14-77)
if [ "$SHA_ACT" == "$SHA_EXP" ]; then
    echo $POSTMSG_SHASUM >> $POSTLOG
fi


#launching denali application
#TODO: -d(--enable-dialin-unhandled) added for the development phase and has to be removed later 
$HOME/denali -u -d &


# tag the end time in the POST log file
echo "End: $(date +"%d%m%Y%H%M%S")" >> $POSTLOG


# setup ethernet
# note: At this time the application is running and also the ehternet connection is not necessary
# so the sleep here is not hurtung any part of the applicaion progress.
sleep 10
udhcpc eth0 &