#!/bin/bash

# Keep this path for calling _common.sh inside the execution's context of backup and restore scripts
source ../settings/scripts/_common.sh
source ../settings/scripts/ynh_add_swap
source /usr/share/yunohost/helpers

#=================================================
# RESTORE THE APP MAIN DIR
#=================================================
ynh_script_progression "Restoring the app main directory..."

ynh_restore "$install_dir"

#=================================================
# RESTORE THE POSTGRESQL DATABASE
#=================================================
ynh_script_progression "Restoring the PostgreSQL database..."

ynh_psql_db_shell <<< "ALTER USER $db_user CREATEDB;"
ynh_psql_db_shell < "./db.sql"

#=================================================
# ADD SWAP IF NEEDED
#=================================================
ynh_script_progression "Adding swap if needed..."

total_memory=$(ynh_get_ram --total)
swap_needed=0

if [ $total_memory -lt $memory_needed ]; then
	# Need a minimum of 8Go of memory
	swap_needed=$(($memory_needed - $total_memory))
fi

ynh_script_progression "Adding $swap_needed Mo to swap..."

ynh_add_swap --size=$swap_needed

#=================================================
# BUILD APP
#=================================================
ynh_script_progression "Building app..."

pushd "$install_dir/live"
	gem update --system
	gem install bundler --no-document
	ynh_hide_warnings ynh_exec_as_app $ld_preload bin/bundle install --redownload -j$(getconf _NPROCESSORS_ONLN)
popd

#=================================================
# RESTORE SYSTEM CONFIGURATIONS
#=================================================
ynh_script_progression "Restoring system configurations related to $app..."

ynh_restore "/etc/nginx/conf.d/$domain.d/$app.conf"

ynh_restore "/etc/systemd/system/$app-web.service"
ynh_restore "/etc/systemd/system/$app-sidekiq.service"
ynh_restore "/etc/systemd/system/$app-streaming.service"
systemctl enable "$app-web" "$app-sidekiq" "$app-streaming" --quiet

yunohost service add "$app-web" --description="$app web service"
yunohost service add "$app-sidekiq" --description="$app sidekiq service"
yunohost service add "$app-streaming" --description="$app streaming service"

ynh_restore "/etc/cron.d/$app"

mkdir -p /var/log/$app
ynh_restore "/etc/logrotate.d/$app"

#=================================================
# RELOAD NGINX AND THE APP SERVICE
#=================================================
ynh_script_progression "Reloading NGINX web server and $app's service..."

ynh_systemctl --service=${app}-web --action="start" --log_path=/var/log/$app/$app-web.log --wait_until="Listening on"
ynh_systemctl --service=${app}-sidekiq --action="start" --log_path=/var/log/$app/$app-sidekiq.log --wait_until="Schedules Loaded"
ynh_systemctl --service=${app}-streaming --action="start" --log_path=/var/log/$app/$app-streaming.log --wait_until="Streaming API now listening"

ynh_systemctl --service=nginx --action=reload

#=================================================
# END OF SCRIPT
#=================================================

ynh_script_progression "Restoration completed for $app"