#!/bin/bash

set -eu

echo "=========================="
echo "      Etherpad start      "
echo "=========================="

# make npm behave a bit to improve our log display
export npm_config_progress=false
export npm_config_color=false
export npm_config_spin=false

echo "=> Ensure directories"
mkdir -p /run/etherpad-lite/run /run/etherpad-lite/var /app/data/node_modules /run/etherpad-lite/npm /app/data/custom

# the idea here is make the node_modules dir writable so that ep can install plugins there
# the ep_cloudron has to be symlinked at the top level so that ep can find it
echo "=> Fixing up node_modules"
ln -Tsf /app/code/src /app/data/node_modules/ep_etherpad-lite # this symlink is "require"d by plugins

echo "=> Ensuring cloudron plugin"
npm install ep_cloudron@2.0.4
# Use this instead of the line above during ep_cloudron development
# npm install git+https://git.cloudron.io/cloudron/ep_cloudron.git\#devel --force

# We setup the app with some useful default plugins, the user may or may not uninstall them afterwards
if [[ ! -f "/app/data/.installed" ]]; then
  echo "=> First run, installing default plugins"
  npm install --no-package-lock ep_page_view ep_headings2 ep_font_color ep_font_family ep_font_size ep_superscript ep_subscript
  touch "/app/data/.installed"
fi

echo "=> Ensuring templates"
for f in "index" "pad" "timeslider"; do
  if [[ ! -f "/app/data/custom/$f.js" ]]; then
    cp "/app/code/src/static/custom_templates/js.template" "/app/data/custom/$f.js"
  fi

  if [[ ! -f "/app/data/custom/$f.css" ]]; then
    cp "/app/code/src/static/custom_templates/css.template" "/app/data/custom/$f.css"
  fi
done

echo "=> Generating settings.json"
sed -e "s/##MYSQL_HOST/${MYSQL_HOST}/g" \
    -e "s/##MYSQL_PORT/${MYSQL_PORT}/g" \
    -e "s/##MYSQL_USERNAME/${MYSQL_USERNAME}/g" \
    -e "s/##MYSQL_PASSWORD/${MYSQL_PASSWORD}/g" \
    -e "s/##MYSQL_DATABASE/${MYSQL_DATABASE}/g" \
    /app/code/settings.json.template > "/run/etherpad-lite/settings.json"

echo "=> Ensure /app/data/settings.json"
if [[ ! -f "/app/data/settings.json" ]]; then
  echo -e "{\n\n}" > "/app/data/settings.json"
fi

echo "=> Ensure folder permissions"
chown -R cloudron:cloudron /run/etherpad-lite /app/data

echo "=> Starting etherpad"
export NODE_ENV=production
# etherpad expects APIKEY, SESSIONKEY, node_modules in curdir
cd /app/code
exec /usr/local/bin/gosu cloudron:cloudron node /app/code/src/node/server.js --settings /run/etherpad-lite/settings.json --credentials /app/data/settings.json