#!/bin/bash

ntp_server="ro.pool.ntp.org"
your_sudo_password="startpay"

echo "$(timedatectl)" >> "$DN/log/add/start.log"

# Synchronize system time with an NTP server
# Run ntpdate command with sudo and provide the password
echo "$your_sudo_password" | su -c "ntpdate \"$ntp_server\"" root

# Get the current system time and hardware clock time
system_time=$(date "+%Y-%m-%d %H:%M:%S.%N%:z")
hardware_time=$(echo "$your_sudo_password" | su -c "hwclock --utc --show" root)

# Extract the UNIX timestamp from the hardware time string
system_timestamp=$(date +%s)
hardware_timestamp=$(date -d "$hardware_time" +%s)

echo "$(date +%H:%M:%S),000  INFO System Time: $system_time" >> "$DN/log/add/start.log"
echo "$(date +%H:%M:%S),000  INFO System Timestamp: $system_timestamp" >> "$DN/log/add/start.log"
echo "$(date +%H:%M:%S),000  INFO Hardware Time: $hardware_time" >> "$DN/log/add/start.log"
echo "$(date +%H:%M:%S),000  INFO Hardware Timestamp: $hardware_timestamp" >> "$DN/log/add/start.log"

# Calculate the time difference between system time and hardware clock time
time_difference=$((system_timestamp - hardware_timestamp))
absolute_difference=${time_difference#-}

echo "$(date +%H:%M:%S),000  INFO Time Difference: $time_difference" >> "$DN/log/add/start.log"
echo "$(date +%H:%M:%S),000  INFO Absolute Difference: $absolute_difference" >> "$DN/log/add/start.log"

# Set the maximum allowable time difference (in seconds)
max_time_difference=60

# Check if the time difference is within the acceptable range
if ((time_difference > max_time_difference)); then
    # Update the hardware clock with the synchronized system time
    echo "$your_sudo_password" | su -c "hwclock --systohc" root

    # Print a message indicating that time synchronization has been performed
    echo "$(date +%H:%M:%S),000  INFO System time has been synchronized" >> "$DN/log/add/start.log"
    echo "$(timedatectl)" >> "$DN/log/add/start.log"
else
    echo "$(date +%H:%M:%S),000  INFO Time synchronization not performed. Hardware clock time differs significantly from system time" >> "$DN/log/add/start.log"
fi