#!/bin/bash

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

source ../settings/scripts/_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

#=================================================
# LOAD SETTINGS
#=================================================
ynh_print_info "Loading settings..."

app=$YNH_APP_INSTANCE_NAME

final_path=$(ynh_app_setting_get $app final_path)

#=================================================
# CHECK IF THE APP CAN BE RESTORED
#=================================================
ynh_print_info "Validating restoration parameters..."

test ! -d $final_path \
	|| ynh_die "There is already a directory: $final_path "

#=================================================
# STANDARD RESTORATION STEPS
#=================================================

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

ynh_restore_file "$final_path"

ynh_restore_file "/etc/sudoers.d/${app}_ynh"

ynh_restore_file "/usr/local/bin/$service_name-loadcubefile.sh"

ynh_restore_file "/etc/yunohost/hooks.d/90-vpnclient.tpl"

ynh_restore_file "/etc/openvpn/client.conf.tpl"
ynh_restore_file "/etc/openvpn/client.conf.tpl.restore"
ynh_restore_file "/etc/openvpn/keys/"

ynh_restore_file "/usr/local/bin/$service_name"
ynh_restore_file "/usr/local/bin/$service_checker_name.sh"

#=================================================
# RECREATE THE DEDICATED USER
#=================================================
ynh_print_info "Recreating the dedicated system user..."

# Create the dedicated user (if not existing)
ynh_system_user_create $app

#=================================================
# RESTORE USER RIGHTS
#=================================================

# Restore permissions on app files
chown -R $app: $final_path

#=================================================
# SPECIFIC RESTORATION
#=================================================
# REINSTALL DEPENDENCIES
#=================================================
ynh_print_info "Reinstalling dependencies..."

# Define and install dependencies
ynh_install_app_dependencies "$pkg_dependencies"

#=================================================
# RESTORE SYSTEMD
#=================================================
ynh_print_info "Restoring the systemd configuration..."

ynh_restore_file "/etc/systemd/system/$service_name.service"
ynh_restore_file "/etc/systemd/system/$service_checker_name.service"
ynh_restore_file "/etc/systemd/system/$service_checker_name.timer"
ynh_restore_file "/etc/systemd/system/openvpn@.service"
systemctl daemon-reload
systemctl enable "$service_name.service" --quiet
systemctl enable "$service_checker_name.service" --quiet
systemctl enable "openvpn@.service" --quiet

#=================================================
# ADVERTISE SERVICE IN ADMIN PANEL
#=================================================

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"

#=================================================
# GENERIC FINALIZATION
#=================================================

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

ynh_print_info "Restoration completed for $app"