#!/usr/bin/env bash

# Description: Chatwoot installation script
# OS: Ubuntu 18.04 LTS
# Script Version: 0.2

apt update && apt upgrade -y
apt install -y curl
curl -sL https://deb.nodesource.com/setup_12.x | bash -
curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | apt-key add -
echo "deb https://dl.yarnpkg.com/debian/ stable main" | tee /etc/apt/sources.list.d/yarn.list
apt update

apt install -y \
	git software-properties-common imagemagick libpq-dev \
    libxml2-dev libxslt1-dev file g++ gcc autoconf build-essential \
    libssl-dev libyaml-dev libreadline-dev gnupg2 nginx redis-server \
    redis-tools postgresql postgresql-contrib certbot \
    python-certbot-nginx nodejs yarn patch ruby-dev zlib1g-dev liblzma-dev \
    libgmp-dev libncurses5-dev libffi-dev libgdbm5 libgdbm-dev

adduser --disabled-login --gecos "" chatwoot

sudo -i -u chatwoot bash << EOF
gpg --keyserver hkp://pool.sks-keyservers.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 7D2BAF1CF37B13E2069D6956105BD0E739499BDB
curl -sSL https://get.rvm.io | bash -s stable
EOF

pg_pass=$(head /dev/urandom | tr -dc A-Za-z0-9 | head -c 15 ; echo '')
sudo -i -u postgres psql << EOF
\set pass `echo $pg_pass`
CREATE USER chatwoot CREATEDB;
ALTER USER chatwoot PASSWORD :'pass';
ALTER ROLE chatwoot SUPERUSER;
EOF

systemctl enable redis-server.service
systemctl enable postgresql

secret=$(head /dev/urandom | tr -dc A-Za-z0-9 | head -c 63 ; echo '')
RAILS_ENV=production

sudo -i -u chatwoot << EOF
rvm --version
rvm autolibs disable
rvm install "ruby-2.7.2"
rvm use 2.7.2 --default

git clone https://github.com/chatwoot/chatwoot.git
cd chatwoot
if [[ -z "$1" ]]; then
  git checkout master;
else
  git checkout $1;
fi
bundle
yarn

cp .env.example .env
sed -i -e "/SECRET_KEY_BASE/ s/=.*/=$secret/" .env
sed -i -e '/REDIS_URL/ s/=.*/=redis:\/\/localhost:6379/' .env
sed -i -e '/POSTGRES_HOST/ s/=.*/=localhost/' .env
sed -i -e '/POSTGRES_USERNAME/ s/=.*/=chatwoot/' .env
sed -i -e "/POSTGRES_PASSWORD/ s/=.*/=$pg_pass/" .env
sed -i -e '/RAILS_ENV/ s/=.*/=$RAILS_ENV/' .env

RAILS_ENV=production bundle exec rake db:create
RAILS_ENV=production bundle exec rake db:reset
rake assets:precompile RAILS_ENV=production
EOF

cp /home/chatwoot/chatwoot/deployment/chatwoot-web.1.service /etc/systemd/system/chatwoot-web.1.service
cp /home/chatwoot/chatwoot/deployment/chatwoot-worker.1.service /etc/systemd/system/chatwoot-worker.1.service
cp /home/chatwoot/chatwoot/deployment/chatwoot.target /etc/systemd/system/chatwoot.target

systemctl enable chatwoot.target
systemctl start chatwoot.target

echo "Woot! Woot!! Chatwoot server installation is complete"
echo "The server will be accessible at http://<server-ip>:3000"
echo "To configure a domain and SSL certificate, follow the guide at https://www.chatwoot.com/docs/deployment/deploy-chatwoot-in-linux-vm"

# TODO: Auto-configure Nginx with SSL certificate