#!/bin/bash
ZVERSION="0.6.0.0"
echo
echo "Zenith Full Node Docker Image Setup"
echo 
echo "... testing if docker service is active.."
if systemctl is-active --quiet docker; then
  echo "... Docker service active"
  echo 
  if [ -d $HOME"/Zenith" ]; then
    echo "Warning: Zenith configuration already exist, this procedure will create"
    echo "         a new configuration file. Your previous configurarion "
    echo "         will be saved as 'previous-zenith.cfg'. (a Backup is recommended)."
    echo 
    read -r -p "Do you want to proceed ? [Y/n] " response
    case "$response" in
      [yY]) 
            if [ -f $HOME/Zenith/previous-zenith.cfg ]; then
              rm $HOME/Zenith/previous-zenith.cfg
            fi  
            mv $HOME/Zenith/zenith.cfg $HOME/Zenith/previous-zenith.cfg
            ;;
      *)
            echo "... Zenith docker image setup not completed."
            exit  
            ;;
    esac
  else 
    echo
    echo "... creating Zenith folder"
    mkdir -p $HOME/Zenith/assets
  fi  
  if  docker image ls | grep -q "zenith-docker" ; then
    echo "... removing previous docker image"
    docker rmi -f "zenith-docker:"$ZVERSION
  fi  
  echo "... loading  zenith-docker:"$ZVERSION" image"
  docker load < zenith-docker_$ZVERSION.tar  
  echo "... docker image zenith-docker:"$ZVERSION" loaded."
  echo "... creating default configuration"
  cp cfg/zenith.cfg $HOME/Zenith/
  echo "... copying zenith assets to Zenith folder."
  cp -r cfg/assets $HOME/Zenith/assets
  if ! [ -d $HOME/.local/bin ]; then
    echo "... creating $HOME/.local/bin folder"
    mkdir -p $HOME/.local/bin
  else
    echo "... $HOME/.local/bin exists"
  fi
  if [ -f $HOME/.local/bin/runzenith ]; then
    rm  $HOME/.local/bin/runzenith
  fi
  echo "... copying runzenith to $HOME/.local/bin"  
  cp cfg/runzenith $HOME/.local/bin/
  if ! echo $PATH | grep -q $HOME/.local/bin ; then
    echo PATH=$PATH:$HOME/.local/bin | tee -a $HOME/.bashrc
    echo "... reloading configuration ...."
    source $HOME/.bashrc
  else   
    echo "... PATH=$PATH"  
  fi
  echo
  echo "To start zenith execute 'runzenith' from the command line."
else
  echo "... Docker service is not active"
  echo "... Please activate Docker service first."
fi
echo
echo "Done"
echo