#!/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
	echo ""
}
TRAP_ON	# Active trap to stop the script if an error is detected.

domain=$YNH_APP_ARG_DOMAIN
admin_mastodon=$YNH_APP_ARG_ADMIN
admin_mastodon_mail=$(ynh_user_get_info $admin_mastodon 'mail')
admin_pass=$YNH_APP_ARG_PASSWD
language=$YNH_APP_ARG_LANGUAGE

app=$YNH_APP_INSTANCE_NAME

CHECK_VAR "$app" "app name not set"

CHECK_USER "$admin_mastodon"

CHECK_DOMAINPATH

CHECK_FINALPATH

ynh_app_setting_set $app domain $domain
ynh_app_setting_set $app admin $admin_mastodon
ynh_app_setting_set $app pass $admin_pass
ynh_app_setting_set $app language $language

[[ ${#admin_pass} -gt 7 ]] || ynh_die \
"The password is too weak, it must be longer than 7 characters"

# 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 apt-transport-https pkg-config libprotobuf-dev protobuf-compiler libicu-dev libidn11-dev

# Install redis package
ynh_package_install redis-server redis-tools

# Install postgresql
ynh_package_install postgresql postgresql-contrib postgresql-server-dev-9.4

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

# Import debian archive pubkey, need on ARM arch
arch=$(uname -m)
if [[ $arch = arm*  ]]; then
	sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 8B48AD6246925553
	sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 7638D0442B90D010
fi

# Install source.list debian package backports & yarn
sudo cp ../conf/backports.list /etc/apt/sources.list.d/
sudo curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | sudo apt-key add -
sudo cp ../conf/yarn.list /etc/apt/sources.list.d/
ynh_package_update

# Install debian package backports
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_6.x | sudo bash -
sudo apt-get -y install nodejs

# Install Yarn
ynh_package_install yarn

# Set UTF8 encoding by default
sudo su -c "psql" postgres <<< \
			"update pg_database set datistemplate='false' where datname='template1';"
sudo su -c "psql" postgres <<< \
			"drop database template1;"
sudo su -c "psql" postgres <<< \
			"create database template1 encoding='UTF8' template template0;"
sudo su -c "psql" postgres <<< \
			"update pg_database set datistemplate='true' where datname='template1';"

# Create DB without password
ynh_psql_create_db_without_password "$app"
sudo systemctl restart postgresql

# Download all sources rbenv, ruby and mastodon
sudo su - $app <<CLONECOMMANDS
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
CLONECOMMANDS

# Switch branch to tagged release
cd $final_path/live
version=$(curl -s https://api.github.com/repos/tootsuite/mastodon/releases/latest | grep tag_name | cut -d\" -f4)
sudo su - $app <<SWITCHCOMMANDS
pushd ~/live
git checkout $version
SWITCHCOMMANDS

# Be king rewind (/var/cache/yunohost/from_file/scripts)
popd

# 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"' >> ~/.profile
echo 'export PATH="/opt/mastodon/.rbenv/bin:/opt/mastodon/live/bin:$PATH"' >> ~/.bashrc
echo 'eval "\$(rbenv init -)"' >> ~/.profile
COMMANDS

# Install ruby-build
sudo su - $app <<RCOMMANDS
/opt/mastodon/.rbenv/bin/rbenv install 2.4.2
/opt/mastodon/.rbenv/versions/2.4.2/bin/ruby -v
RCOMMANDS

# Create symlink for ruby
sudo ln -s /opt/mastodon/.rbenv/versions/2.4.2/bin/ruby /usr/bin/ruby || true

# Install Mastodon
sudo su - $app <<MCOMMANDS
pushd ~/live
/opt/mastodon/.rbenv/versions/2.4.2/bin/gem install bundler
bin/bundle install --deployment --without development test
yarn install --production
MCOMMANDS

# Adjust Mastodon config
pushd $final_path/live/
sudo cp -a .env.production.sample .env.production
sudo sed -i "s@REDIS_HOST=redis@REDIS_HOST=127.0.0.1@g" "${final_path}/live/.env.production"
sudo sed -i "s@DB_HOST=db@DB_HOST=/var/run/postgresql@g" "${final_path}/live/.env.production"
sudo sed -i "s@DB_USER=postgres@DB_USER=${app}@g" "${final_path}/live/.env.production"
sudo sed -i "s@DB_NAME=postgres@DB_NAME=${app}_production@g" "${final_path}/live/.env.production"
sudo sed -i "s@LOCAL_DOMAIN=example.com@LOCAL_DOMAIN=${domain}@g" "${final_path}/live/.env.production"

language="$(echo $language | head -c 2)"
sudo sed -i "s@# DEFAULT_LOCALE=de@DEFAULT_LOCALE=${language}@g" "${final_path}/live/.env.production"

paperclip_secret=$(head -n128 /dev/urandom | tail -n +1 | tr -dc -d 'a-z0-9' | head -c128)
secret_key_base=$(head -n128 /dev/urandom | tail -n +1 | tr -dc -d 'a-z0-9' | head -c128)
otp_secret=$(head -n128 /dev/urandom | tail -n +1 | tr -dc -d 'a-z0-9' | head -c128)
sudo sed -i "s@PAPERCLIP_SECRET=@PAPERCLIP_SECRET=${paperclip_secret}@g" "${final_path}/live/.env.production"
sudo sed -i "s@SECRET_KEY_BASE=@SECRET_KEY_BASE=${secret_key_base}@g" "${final_path}/live/.env.production"
sudo sed -i "s@OTP_SECRET=@OTP_SECRET=${otp_secret}@g" "${final_path}/live/.env.production"

sudo sed -i "s@SMTP_LOGIN=@#SMTP_LOGIN=@g" "${final_path}/live/.env.production"
sudo sed -i "s@SMTP_PASSWORD=@#SMTP_PASSWORD=@g" "${final_path}/live/.env.production"
sudo sed -i "s@SMTP_SERVER=smtp.mailgun.org@SMTP_SERVER=localhost@g" "${final_path}/live/.env.production"
sudo sed -i "s@SMTP_PORT=587@SMTP_PORT=25@g" "${final_path}/live/.env.production"
sudo sed -i 's,SMTP_FROM_ADDRESS=notifications@example.com,SMTP_FROM_ADDRESS='${admin_mastodon}'@'${domain}',' "${final_path}/live/.env.production"
sudo sed -i "s@#SMTP_AUTH_METHOD=plain@SMTP_AUTH_METHOD=none@g" "${final_path}/live/.env.production"
sudo sed -i "s@#SMTP_OPENSSL_VERIFY_MODE=peer@SMTP_OPENSSL_VERIFY_MODE=none@g" "${final_path}/live/.env.production"

# Create database
# Preconfig CSS & JS
sudo su - $app <<CCOMMANDS
pushd ~/live
echo "SAFETY_ASSURED=1">> .env.production
RAILS_ENV=production bin/bundle exec rails db:setup
RAILS_ENV=production bin/bundle exec rails --trace assets:precompile
CCOMMANDS

# init rbenv & create bundle
sudo su - $app <<BCOMMANDS
. ~/.profile
type rbenv
BCOMMANDS

# Add Services
popd

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 daemon-reload
sudo systemctl enable /etc/systemd/system/mastodon-*.service
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

# Create user
sudo su - $app <<UCOMMANDS
pushd ~/live
RAILS_ENV=production bundle exec rails c
account = Account.create!(username: '$admin_mastodon')
user = User.create!(email: '$admin_mastodon_mail', password: '$admin_pass', account: account)
UCOMMANDS

# Create administrator & confirm user
sudo su - $app <<ACOMMANDS
pushd ~/live
RAILS_ENV=production bin/bundle exec rails mastodon:make_admin USERNAME=$admin_mastodon
RAILS_ENV=production bin/bundle exec rails mastodon:confirm_email USER_EMAIL=$admin_mastodon_mail
ACOMMANDS

# Modify Nginx configuration file and copy it to Nginx conf directory
sudo sed -i "s@__PATH__@$app@g" ../conf/nginx.conf*
sudo sed -i "s@__FINALPATH__@$final_path@g" ../conf/nginx.conf*
sudo cp ../conf/nginx.conf /etc/nginx/conf.d/$domain.d/$app.conf

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

# Unprotected url
ynh_app_setting_set "$app" unprotected_uris "/"

# Reload SSOwat configuration
sudo yunohost app ssowatconf

# Reload Nginx
sudo systemctl reload nginx