#!/bin/bash

# VPN Client app for YunoHost
# Copyright (C) 2015 Julien Vaubourg <julien@vaubourg.com>
# Contribute at https://github.com/labriqueinternet/vpnclient_ynh
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

#=================================================
# GENERIC START
#=================================================
# IMPORT GENERIC HELPERS
#=================================================

source /usr/share/yunohost/helpers
source _common.sh

#=================================================
# MANAGE SCRIPT FAILURE
#=================================================

# Exit if an error occurs during the execution of the script
ynh_abort_if_errors

#=================================================
# RETRIEVE ARGUMENTS FROM THE MANIFEST
#=================================================

# Retrieve arguments
domain=$YNH_APP_ARG_DOMAIN
path_url=$(ynh_normalize_url_path "$YNH_APP_ARG_PATH")
app=$YNH_APP_INSTANCE_NAME
final_path="/var/www/$app"

#=================================================
# CHECK IF THE APP CAN BE INSTALLED WITH THESE ARGS
#=================================================
ynh_print_info "Validating installation parameters..."

# Check destination directory
test ! -e "$final_path" || ynh_die "Path is already in use: ${final_path}."

# Register (book) web path
ynh_webpath_register "$app" "$domain" "$path_url"

#=================================================
# STORE SETTINGS FROM MANIFEST
#=================================================
ynh_print_info "Storing installation settings..."

ynh_app_setting_set "$app" domain "$domain"
ynh_app_setting_set "$app" final_path "$final_path"

#=================================================
# STANDARD MODIFICATIONS
#=================================================
# INSTALL DEPENDENCIES
#=================================================
ynh_print_info "Installing dependencies..."

ynh_install_app_dependencies "$pkg_dependencies"

#=================================================
# DEPLOY FILES FROM PACKAGE
#=================================================
ynh_print_info "Deploy files from package..."

vpnclient_deploy_files_and_services "${domain}" "${app}" "${service_name}"

#=================================================
# RELOAD SERVICES
#=================================================
ynh_print_info "Reloading services..."

# Set default inits
# The boot order of these services are important, so they are disabled by default
# and the vpnclient service handles them.
systemctl disable openvpn
systemctl stop openvpn

systemctl restart php7.0-fpm
systemctl reload nginx

# main service

yunohost service add $service_name --description "Tunnels the internet traffic through a VPN" --need_lock
yunohost service enable $service_name

# checker service

yunohost service add $service_checker_name --description "Makes sure that the VPN service is running" --need_lock
yunohost service start $service_checker_name
yunohost service enable $service_checker_name
systemctl start $service_checker_name.timer
systemctl enable $service_checker_name.timer

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

ynh_print_info "Installation of $app completed"