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

#=================================================
# 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
app=$YNH_APP_INSTANCE_NAME
final_path="/var/www/$app"

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

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


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

ynh_app_setting_set "$app" final_path "$final_path"

# Default values for config panel
ynh_app_setting_set "$app" service_enabled 0
ynh_app_setting_set "$app" dns_method "pushed"
ynh_app_setting_set "$app" nameservers ""
ynh_app_setting_set "$app" ip6_addr ""

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

ynh_install_app_dependencies "$pkg_dependencies"

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

vpnclient_deploy_files_and_services

#=================================================
# RELOAD SERVICES
#=================================================
ynh_script_progression "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 --quiet
systemctl stop openvpn

# main service

yunohost service add $service_name --description "Tunnels the internet traffic through a VPN" --need_lock --test_status="systemctl is-active openvpn@client.service" --log "/var/log/ynh-vpnclient.log"
yunohost service enable $service_name

# checker service

systemctl start $service_checker_name
systemctl enable $service_checker_name --quiet
systemctl start $service_checker_name.timer
systemctl enable $service_checker_name.timer --quiet

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

ynh_script_progression --message="Installation of $app completed" --last