#!/bin/bash

display_usage () {
  echo "$(basename "$0") [-h] [-c \"<command to be executed inside container>\"]"
  echo ''
  echo 'where:'
  echo '    -h    show this help text'
  echo '    -c    execute a command inside docker using docker exec'
  echo '    -s    adds site-names to /etc/hosts file in the container to facilitate multisite access'
  echo '    init  initializes frappe-bench'
  echo '    init -e  initializes frappe-bench and installs erpnext'
}

frappe_installer () {
  echo "starting frappe_docker setup"
  docker exec -i -u root frappe bash -c "cd /home/frappe && chown -R frappe:frappe ./*" 
  docker exec -it frappe bash -c "cd .. && bench init frappe-bench --ignore-exist --skip-redis-config-generation && cd frappe-bench"
  docker exec -it frappe bash -c "mv Procfile_docker Procfile && mv sites/common_site_config_docker.json sites/common_site_config.json"
  echo "frappe-bench folder setup"
  docker exec -it -u root frappe bash -c "apt-get install vim && apt-get install sudo && usermod -aG sudo frappe && printf '# User rules for frappe\nfrappe ALL=(ALL) NOPASSWD:ALL' >> /etc/sudoers.d/frappe"
  echo "adding site1.local"
  docker exec -it frappe bash -c "bench new-site site1.local"
  docker exec -i -u root frappe bash -c "echo 127.0.0.1   site1.local >> /etc/hosts"
  sudo su -c 'echo 127.0.0.1   site1.local >> /etc/hosts'
  echo "site1.local added"
}

if [[ $# -eq 0 ]]; then
  docker exec -it frappe bash

elif [ $1 == 'init' && $2 == 'e' ]
then
  frappe_installer
  echo "installing erpnext"
  docker exec -it frappe bash -c "bench get-app erpnext" | echo
  docker exec -it frappe bash -c "bench --site site1.local install-app erpnext" | echo
  echo "finished"

elif [ $1 == 'init' ]
then
  frappe_installer

else
  while getopts ':hsc:' option; do
    case "$option" in
      h)
         display_usage
         exit
         ;;
      c)
         docker exec -it frappe bash -c "bench $OPTARG"
         ;;
      s)
         a=$(cd frappe-bench && ls sites/*/site_config.json | grep -o '/.\+/')
         a="${a//$'\n'/ }"
         a=$(echo $a | tr -d / )
         result="127.0.0.1 ${a}"
         echo $result
         docker exec -u root -i frappe bash -c "echo ${result} | tee --append /etc/hosts"
         docker exec -itu root frappe bash -c "printf '# User rules for frappe\nfrappe ALL=(ALL) NOPASSWD:ALL' >> /etc/sudoers.d/frappe"
         ;;
      \?)
        echo "Invalid option: -$OPTARG" >&2
        exit 1
        ;;
      :)
        echo "Option -$OPTARG requires an argument." >&2
        exit 1
        ;;
    esac
  done
fi