#!/bin/bash

# Exit on command errors and treat unset variables as an error
set -eu

source .fonctions	# Loads the generic functions usually used in the script
source /usr/share/yunohost/helpers # Source app helpers

CLEAN_SETUP () {
	# Clean installation residues that are not supported by the remove script.
	# Clean hosts
	sudo sed -i '/#MASTODON/d' /etc/hosts
}
TRAP_ON	# Active trap to stop the script if an error is detected.

domain=$YNH_APP_ARG_DOMAIN
path=$YNH_APP_ARG_PATH
admin_mastodon=$YNH_APP_ARG_ADMIN
is_public=$YNH_APP_ARG_IS_PUBLIC
#language=$YNH_APP_ARG_LANGUAGE

app=$YNH_APP_INSTANCE_NAME

CHECK_VAR "$app" "app name not set"

CHECK_USER "$admin_mastodon"

CHECK_PATH

CHECK_DOMAINPATH

CHECK_FINALPATH

ynh_app_setting_set $app domain $domain
ynh_app_setting_set $app path $path
ynh_app_setting_set $app admin $admin_mastodon
ynh_app_setting_set $app is_public $is_public
# ynh_app_setting_set $app language $language

# Create user unix
sudo adduser $app --home /opt/$app --gecos "First Last,RoomNumber,WorkPhone,HomePhone" --disabled-password --disabled-login

# Install debian package
ynh_package_install imagemagick libpq-dev libxml2-dev libxslt1-dev file curl

# Install redis package
ynh_package_install redis-server redis-tools

# Install postgresql
ynh_package_install postgresql postgresql-contrib

# Install Ruby
ynh_package_install autoconf bison build-essential libssl-dev libyaml-dev libreadline6-dev zlib1g-dev libncurses5-dev libffi-dev libgdbm3 libgdbm-dev

# Install debian package backports
sudo cp ../conf/backports.list /etc/apt/sources.list.d/ 
ynh_package_update
sudo apt-get -t jessie-backports -y install ffmpeg

# Creates the destination directory and stores its location.
ynh_app_setting_set $app final_path $final_path

# Install de Node.js
pushd /opt
curl -sL https://deb.nodesource.com/setup_4.x | bash -
sudo apt-get -y install nodejs
npm install -g yarn

## Install postgresql database
dbname=$app
dbuser=$app
# Generate random password
dbpass=$(ynh_string_random)
ynh_psql_create_db "$dbname" "$dbuser" "$dbpass"

# Download all Ruby source
sudo git clone https://github.com/rbenv/rbenv.git $final_path/.rbenv
git clone https://github.com/rbenv/ruby-build.git $final_path/.rbenv/plugins/ruby-build
git clone https://github.com/tootsuite/mastodon.git $final_path/live
git clone git://github.com/dcarley/rbenv-sudo.git $final_path/.rbenv/plugins/rbenv-sudo
sudo chown -R $app: "${final_path}"

# Install de rbenv
sudo su - $app <<COMMANDS
pushd ~/.rbenv
src/configure && make -C src
echo 'export PATH="/opt/mastodon/.rbenv/bin:/opt/mastodon/live/bin:$PATH"' >> ~/.bashrc
echo 'eval "\$(rbenv init -)"' >> ~/.bashrc
echo "alias su='env PATH=\$PATH'" >> ~/.bashrc
COMMANDS

# Install ruby-build
sudo su - $app <<RCOMMANDS
/opt/mastodon/.rbenv/bin/rbenv install 2.3.1
/opt/mastodon/.rbenv/versions/2.3.1/bin/ruby -v
RCOMMANDS

# Create symlink for ruby
sudo ln -s /opt/mastodon/.rbenv/versions/2.3.1/bin/ruby /usr/bin/ruby || true

# # Install Mastodon
sudo su - $app <<MCOMMANDS
pushd ~/live
/opt/mastodon/.rbenv/versions/2.3.1/bin/gem install bundler
bin/bundle install --deployment --without development test
yarn install
MCOMMANDS

# Adjust Mastodon config
pushd $final_path/live/
sudo cp -a .env.production.sample .env.production
sudo sed -i "s@REDIS_HOST=localhost@REDIS_HOST=127.0.0.1@g" "${final_path}/live/.env.production"
sudo sed -i "s@DB_HOST=db@DB_HOST=/var/run/postgresql@g" "${final_path}/live/.env.production"
sudo sed -i "s@DB_USER=mastodon@DB_USER=${dbuser}@g" "${final_path}/live/.env.production"
sudo sed -i "s@DB_NAME=mastodon@DB_NAME=${dbuser}@g" "${final_path}/live/.env.production"
sudo sed -i "s@LOCAL_DOMAIN=domainedevotreinstance.tld@LOCAL_DOMAIN=${domain}@g" "${final_path}/live/.env.production"

sudo sed -i "s@PAPERCLIP_SECRET=@PAPERCLIP_SECRET=$(head -n32 /dev/urandom | tr -dc -d 'A-Za-z0-9' | head -c32)@g" "${final_path}/live/.env.production"
sudo sed -i "s@SECRET_KEY_BASE=@SECRET_KEY_BASE=$(head -n32 /dev/urandom | tr -dc -d 'A-Za-z0-9' | head -c32)@g" "${final_path}/live/.env.production"
sudo sed -i "s@OTP_SECRET=@OTP_SECRET=$(head -n32 /dev/urandom | tr -dc -d 'A-Za-z0-9' | head -c32)@g" "${final_path}/live/.env.production"

sudo sed -i "s@SMTP_SERVER=smtp.mailgun.org@SMTP_SERVER=localhost@g" "${final_path}/live/.env.production"
sudo sed -i 's,SMTP_FROM_ADDRESS=notifications@example.com,SMTP_FROM_ADDRESS='${admin_mastodon}'@'${domain}',' "${final_path}/live/.env.production"

# Create database
# Preconfig CSS & JS
sudo su - $app <<ENDCOMMANDS
pushd ~/live
RAILS_ENV=production bin/bundle exec rails db:setup
RAILS_ENV=production bin/bundle exec rails assets:precompile
ENDCOMMANDS

# Add Services
pushd /var/cache/yunohost/from_file/scripts

sudo cp ../conf/mastodon-web.service /etc/systemd/system/mastodon-web.service
sudo chown root: /etc/systemd/system/mastodon-web.service
sudo cp ../conf/mastodon-sidekiq.service /etc/systemd/system/mastodon-sidekiq.service
sudo chown root: /etc/systemd/system/mastodon-sidekiq.service
sudo cp ../conf/mastodon-streaming.service /etc/systemd/system/mastodon-streaming.service
sudo chown root: /etc/systemd/system/mastodon-streaming.service

sudo systemctl enable /etc/systemd/system/mastodon-*.service
sudo systemctl daemon-reload
sudo systemctl start mastodon-web.service mastodon-sidekiq.service mastodon-streaming.service
# # debug
sudo systemctl status mastodon-web.service mastodon-sidekiq.service mastodon-streaming.service

# Add service YunoHost
sudo yunohost service add mastodon-web
sudo yunohost service add mastodon-sidekiq
sudo yunohost service add mastodon-streaming

# Copy nginx config
sudo cp ../conf/nginx.conf /etc/nginx/conf.d/$domain.d/$app.conf
sudo sed -i "s@__PATH__@$path@g" /etc/nginx/conf.d/$domain.d/$app.conf
sudo sed -i "s@__FINALPATH__@$final_path@g" /etc/nginx/conf.d/$domain.d/$app.conf

# Install crontab
sudo cp ../conf/crontab_mastodon /etc/cron.d/$app
sudo sed -i "s@__AP__@$app@g" /etc/cron.d/$app

# Private or not
if [ "$is_public" = "Yes" ];
then
	sudo sed -i "s@#--PRIVATE--@@g" /etc/nginx/conf.d/$domain.d/$app.conf
fi

# Setup SSOwat
ynh_app_setting_set "$app" is_public "$is_public"
if [ "$is_public" = "Yes" ];
then
  ynh_app_setting_set "$app" unprotected_uris "/"
fi

# Reload SSOwat configuration
sudo yunohost app ssowatconf

# Reload Nginx and regenerate SSOwat conf
sudo systemctl reload nginx || true
# debug
sudo systemctl status nginx

# Nettoyer hosts
sudo sed -i '/#MASTODON/d' /etc/hosts