#!/usr/bin/env ruby

def ensure_db_connectivity(user = ENV.fetch("PG_USER"), pass = ENV.fetch("PG_PASS"), host = ENV.fetch("PG_HOST"))
  cmd = %{psql -d 'postgresql://#{user}:#{pass}@#{host}' -c 'select now()' > /dev/null 2>&1}
  res = system(cmd)
  if res
    puts "Successfully pinged the database!"
  else
    puts "Can't connect to the database using the credenials provided in the .env file!"
    exit(1)
  end
end

def install_script_deps
  system("gem install bundler")
  system("gem install dotenv")
end

def load_env
  require "dotenv"
  Dir.chdir "/home/ubuntu/app"
  Dotenv.load!
  Dotenv.require_keys("TOOLJET_HOST", "LOCKBOX_MASTER_KEY", "SECRET_KEY_BASE", "PG_DB", "PG_USER", "PG_HOST", "PG_PASS")
end

def install_be_app_deps
  system("RAILS_ENV=production bundle install")
  system("RAILS_ENV=production bundle exec dotenv rails db:create")
  system("RAILS_ENV=production bundle exec dotenv rails db:migrate")
  system("RAILS_ENV=production bundle exec dotenv rails db:seed")
end


def build_fe
  backend_url = "#{ENV.fetch("TOOLJET_HOST")}/_backend_"
  front_end_working_dir = "/home/ubuntu/app/frontend"
  Dir.chdir front_end_working_dir
  system("npm install --only=production")
  system("NODE_ENV=production TOOLJET_SERVER_URL=#{backend_url} npm run-script build")
end

def start_services
  system("sudo systemctl start openresty")
  system("bundle binstubs puma && rbenv rehash && sudo systemctl start puma")
end


install_script_deps
load_env
ensure_db_connectivity
install_be_app_deps
build_fe
start_services


puts "The app will be served at #{ENV.fetch("TOOLJET_HOST")}"