#!/bin/bash
echo ""

# load network
network=`cat .network`

echo "*** Adding HDD to the System ***"
sleep 5
existsHDD=$(lsblk | grep -c sda)
if [ ${existsHDD} -gt 0 ]; then
  echo "OK - HDD found as sda"
  mountOK=$(df | grep -c /mnt/hdd)
  if [ ${mountOK} -eq 1 ]; then
    echo "FAIL - HDD is already mounted"
    echo "If you want to add HDD freshly to the system, then unmount the HDD first and try again"
  else  
    echo ""
    echo "*** Check HDD ***"
    formatExt4OK=$(lsblk -o UUID,NAME,FSTYPE,SIZE,LABEL,MODEL | grep BLOCKCHAIN | grep -c ext4) 
    if [ ${formatExt4OK} -eq 1 ]; then
      echo "OK - HDD is formatted with ext4 and is named BLOCKCHAIN"
      uuid=$(lsblk -o UUID,NAME,FSTYPE,SIZE,LABEL,MODEL | grep BLOCKCHAIN)
      set -- $uuid
      uuid=$1
      fstabOK=$(cat /etc/fstab | grep -c ${uuid})
      if [ ${fstabOK} -eq 0 ]; then
        fstabAdd="UUID=${uuid} /mnt/hdd ext4 noexec,defaults 0 0"
        echo "Adding line to /etc/fstab ..."
        echo ${fstabAdd}
        # adding the new line after line 3 to the /etc/fstab
        sudo sed "3 a ${fstabAdd}" -i /etc/fstab
      else 
        echo "UUID is already in /etc/fstab"
      fi
      fstabOK=$(cat /etc/fstab | grep -c ${uuid})
      if [ ${fstabOK} -eq 1 ]; then
         echo "OK - HDD is listed in /etc/fstab"
         echo ""
         echo "*** Mount HDD ***"
         sudo mkdir /mnt/hdd
         sudo mount -a
         mountOK=$(df | grep -c /mnt/hdd)
         if [ ${mountOK} -eq 1 ]; then
           echo "OK - HDD is mounted"
	         echo ""

           # set SetupState
           echo "40" > /home/admin/.setup

           echo "*** Analysing HDD Content ***"
           if [  -d "/mnt/hdd/${network}"  ]; then 
             sudo chown -R bitcoin:bitcoin /mnt/hdd/bitcoin 2>/dev/null
             sudo chown -R bitcoin:bitcoin /mnt/hdd/litecoin 2>/dev/null
             echo "Looks like the HDD is prepared with the Blockchain."
             echo "Continuing with finishing the system setup ..."
             ./60finishHDD.sh
           else
             # HDD is empty - let setupBlitz - display next options
             ./10setupBlitz.sh
           fi 
	 else
           echo "FAIL - was not able to mount"
	 fi
      else
      	echo "FAIL - was not able to edit /etc/fstab"
      fi 
    else
      echo "FAIL - the HDD is not in ext4 format AND named 'BLOCKCHAIN'"
    fi
  fi
else
  echo "FAIL - no HDD as device sda found"
  echo "check if HDD is properly connected and has enough power - then try again with reboot"
fi