diff --git a/backup.sh b/backup.sh
index 4c09f8e..d709de4 100644
--- a/backup.sh
+++ b/backup.sh
@@ -1,40 +1,170 @@
-read -p 'Bot token: ' tk
-read -p 'Chat id: ' chatid
-if [[ ! $chatid =~ ^\-?[0-9]+$ ]]; then
-   echo "${chatid} is not a number."
-   exit 1
-fi
+#!/bin/bash
+
+# Bot token
+# گرفتن توکن ربات از کاربر و ذخیره آن در متغیر tk
+while [[ -z "$tk" ]]; do
+    read -p 'Bot token: ' tk
+    if [[ $tk == $'\0' ]]; then
+        echo "Invalid input. Token cannot be empty."
+        unset tk
+    fi
+done
+
+# Chat id
+# گرفتن Chat ID از کاربر و ذخیره آن در متغیر chatid
+while [[ -z "$chatid" ]]; do
+    read -p 'Chat id: ' chatid
+    if [[ $chatid == $'\0' ]]; then
+        echo "Invalid input. Chat id cannot be empty."
+        unset chatid
+    elif [[ ! $chatid =~ ^\-?[0-9]+$ ]]; then
+        echo "${chatid} is not a number."
+        unset chatid
+    fi
+done
+
+# Caption
+# گرفتن عنوان برای فایل پشتیبان و ذخیره آن در متغیر caption
 read -p 'Caption (for example, your domain, to identify the database file more easily): ' caption
-read -p 'Cronjob (only hours are supported ) (e.g : 6) : ' cron
-if [[ ! $cron =~ ^[0-9]+$ ]]; then
-   echo "${cron} is not a number."
-   exit 1
+
+# Cronjob
+# تعیین زمانی برای اجرای این اسکریپت به صورت دوره‌ای
+while true; do
+    read -p 'Cronjob (minutes and hours) (e.g : 30 6 or 0 12) : ' minute hour
+    if [[ $minute == 0 ]] && [[ $hour == 0 ]]; then
+        cron_time="* * * * *"
+        break
+    elif [[ $minute == 0 ]] && [[ $hour =~ ^[0-9]+$ ]] && [[ $hour -lt 24 ]]; then
+        cron_time="0 */${hour} * * *"
+        break
+    elif [[ $hour == 0 ]] && [[ $minute =~ ^[0-9]+$ ]] && [[ $minute -lt 60 ]]; then
+        cron_time="*/${minute} * * * *"
+        break
+    elif [[ $minute =~ ^[0-9]+$ ]] && [[ $hour =~ ^[0-9]+$ ]] && [[ $hour -lt 24 ]] && [[ $minute -lt 60 ]]; then
+        cron_time="*/${minute} */${hour} * * *"
+        break
+    else
+        echo "Invalid input, please enter a valid cronjob format (minutes and hours, e.g: 0 6 or 30 12)"
+    fi
+done
+
+
+# x-ui or marzban or hiddify
+# گرفتن نوع نرم افزاری که می‌خواهیم پشتیبانی از آن بگیریم و ذخیره آن در متغیر xmh
+while [[ -z "$xmh" ]]; do
+    read -p 'x-ui or marzban or hiddify? [x/m/h] : ' xmh
+    if [[ $xmh == $'\0' ]]; then
+        echo "Invalid input. Please choose x, m or h."
+        unset xmh
+    elif [[ ! $xmh =~ ^[xmh]$ ]]; then
+        echo "${xmh} is not a valid option. Please choose x, m or h."
+        unset xmh
+    fi
+done
+
+while [[ -z "$crontabs" ]]; do
+    read -p 'Would you like the previous crontabs to be cleared? [y/n] : ' crontabs
+    if [[ $crontabs == $'\0' ]]; then
+        echo "Invalid input. Please choose y or n."
+        unset crontabs
+    elif [[ ! $crontabs =~ ^[yn]$ ]]; then
+        echo "${crontabs} is not a valid option. Please choose y or n."
+        unset crontabs
+    fi
+done
+
+if [[ "$crontabs" == "y" ]]; then
+# remove cronjobs
+sudo crontab -l | grep -vE '/root/ac-backup.+\.sh' | crontab -
+fi
+
+
+# m backup
+# ساخت فایل پشتیبانی برای نرم‌افزار Marzban و ذخیره آن در فایل ac-backup.zip
+if [[ "$xmh" == "m" ]]; then
+
+if dir=$(find /opt /root -type d -iname "marzban" -print -quit); then
+  echo "The folder exists at $dir"
+else
+  echo "The folder does not exist."
+  exit 1
+fi
+
+
+ZIP="zip -r /root/ac-backup-m.zip ${dir}/* /var/lib/marzban/*"
+ACh1992="marzban backup"
+
+# x-ui backup
+# ساخت فایل پشتیبانی برای نرم‌افزار X-UI و ذخیره آن در فایل ac-backup.zip
+elif [[ "$xmh" == "x" ]]; then
+
+if dbDir=$(find /etc -type d -iname "x-ui*" -print -quit); then
+  echo "The folder exists at $dbDir"
+else
+  echo "The folder does not exist."
+  exit 1
+fi
+
+if configDir=$(find /usr/local -type d -iname "x-ui*" -print -quit); then
+  echo "The folder exists at $configDir"
+else
+  echo "The folder does not exist."
+  exit 1
 fi
-read -p 'x-ui or marzban? [x/m] : ' xm
 
+ZIP="zip /root/ac-backup-x.zip ${dbDir}/x-ui.db ${configDir}/config.json /root/*.key /root/*.crt"
+ACh1992="x-ui backup"
 
-if [[ "$xm" == "m" || "$xm" == "M" ]]; then
-ZIP="zip -r /root/ac-backup.zip /root/marzban/* /var/lib/marzban/*"
-ACLover="marzban backup"
-elif [[ "$xm" == "x" || "$xm" == "X" ]]; then
-ZIP="zip /root/ac-backup.zip /etc/x-ui/x-ui.db /usr/local/x-ui/bin/config.json /root/*.key /root/*.crt"
-ACLover="x-ui backup"
+# hiddify backup
+# ساخت فایل پشتیبانی برای نرم‌افزار Hiddify و ذخیره آن در فایل ac-backup.zip
+elif [[ "$xmh" == "h" ]]; then
+
+if ! find /opt/hiddify-config/hiddify-panel/ -type d -iname "backup" -print -quit; then
+  echo "The folder does not exist."
+  exit 1
+fi
+
+ZIP=$(cat <<EOF
+cd /opt/hiddify-config/hiddify-panel/
+if [ $(find /opt/hiddify-config/hiddify-panel/backup -type f | wc -l) -gt 100 ]; then
+  find /opt/hiddify-config/hiddify-panel/backup -type f -delete
+fi
+python3 -m hiddifypanel backup
+cd /opt/hiddify-config/hiddify-panel/backup
+latest_file=\$(ls -t *.json | head -n1)
+rm -f /root/ac-backup-h.zip
+zip /root/ac-backup-h.zip /opt/hiddify-config/hiddify-panel/backup/\$latest_file
+
+EOF
+)
+ACh1992="hiddify backup"
 else
-echo "Please choose m or x only !"
+echo "Please choose m or x or h only !"
 exit 1
 fi
 
 export IP=$(hostname -I)
-caption="${caption}\n\n${ACLover}\n<code>${IP}</code>"
+caption="${caption}\n\n${ACh1992}\n<code>${IP}</code>\nCreated by @ACh1992 - https://github.com/ach1992"
 
+# install zip
+# نصب پکیج zip
 sudo apt install zip -y
-sudo apt install curl -y
 
-cat >/root/ac-backup.sh <<EOL
+# send backup to telegram
+# ارسال فایل پشتیبانی به تلگرام
+cat > "/root/ac-backup-${xmh}.sh" <<EOL
 $ZIP
-curl -F chat_id="${chatid}" -F caption=\$'${caption}' -F parse_mode="HTML" -F document=@"/root/ac-backup.zip" https://api.telegram.org/bot${tk}/sendDocument
+curl -F chat_id="${chatid}" -F caption=\$'${caption}' -F parse_mode="HTML" -F document=@"/root/ac-backup-${xmh}.zip" https://api.telegram.org/bot${tk}/sendDocument
 EOL
 
-{ crontab -l -u root; echo "0 */${cron} * * * /bin/bash /root/ac-backup.sh >/dev/null 2>&1"; } | crontab -u root -
-bash /root/ac-backup.sh
-echo "\nDone"
+# Add cronjob
+# افزودن کرانجاب جدید برای اجرای دوره‌ای این اسکریپت
+{ crontab -l -u root; echo "${cron_time} /bin/bash /root/ac-backup-${xmh}.sh >/dev/null 2>&1"; } | crontab -u root -
+
+# run the script
+# اجرای این اسکریپت
+bash "/root/ac-backup-${xmh}.sh"
+
+# Done
+# پایان اجرای اسکریپت
+echo -e "\nDone\n"