#!/bin/bash

PROJECT=$(pwd)
CURRENT_GHOST_VERSION=$(ghost version)
NEW_GHOST_VERSION=$(ghost check-update)

# Ensure latest NPM & Ghost CLI versions
echo "Getting latest version of NPM & Ghost-ClI"
sudo npm install -g npm@latest
sudo npm install -g ghost-cli@latest

if [ ! -z "$NEW_GHOST_VERSION" ]
then

  # Update Ghost version to latest
  echo "Upgrading $CURRENT_GHOST_VERSION -> $NEW_GHOST_VERSION"
  ghost stop
  sudo chown -R ghost:ghost ./content
  ghost update --no-prompt

  # Create storage adapter in `/core` ghost logic (`/current` frequently does not work.)
  if [ ! -d "$PROJECT/current/core/server/adapters/storage/gcs/" ]
  then
    echo "Installing `ghost-v3-google-cloud-storage` in /core/server"
    sudo mkdir -p $PROJECT/current/core/server/adapters/storage/
    sudo mkdir -p $PROJECT/current/core/server/adapters/storage/gcs/
    sudo chown ghost:ghost /var/www/hackers/current/core/server/adapters/storage/gcs/
    cd $PROJECT && npm i ghost-v3-google-cloud-storage
    cp $PROJECT/node_modules/ghost-v3-google-cloud-storage/* $PROJECT/content/adapters/storage/gcs/
  fi

  # Create storage adapter in agnostic `/content` directory
  if [ ! -d "$PROJECT/content/adapters/storage/gcs/" ]
  then
    echo "Installing `ghost-v3-google-cloud-storage` in /content"
    sudo mkdir -p $PROJECT/content/adapters/
    sudo mkdir -p $PROJECT/content/adapters/storage/
    sudo mkdir -p $PROJECT/content/adapters/storage/gcs/
    sudo chown ghost:ghost $PROJECT/content/adapters/storage/gcs/
    cd $PROJECT && npm i ghost-v3-google-cloud-storage
    cp $PROJECT/node_modules/ghost-v3-google-cloud-storage/* $PROJECT/content/adapters/storage/gcs/
  fi

  # Restart Ghost instance
  echo "Restarting Ghost"
  cd $PROJECT/
  ghost restart --verbose

else
  echo "NEW_GHOST_VERSION = $CURRENT_GHOST_VERSION"
  echo "Ghost $CURRENT_GHOST_VERSION is already up to date."
fi