#!/bin/bash

#=================================================
# GENERIC STARTING
#=================================================
# MANAGE FAILURE OF THE SCRIPT
#=================================================

# Exit on command errors and treat unset variables as an error
set -eu

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

if [ ! -e _common.sh ]; then
	# Get the _common.sh file if it's not in the current directory
	cp ../settings/scripts/_common.sh ./_common.sh
	chmod a+rx _common.sh
fi
source _common.sh
source /usr/share/yunohost/helpers

#=================================================
# LOAD SETTINGS
#=================================================

app=$YNH_APP_INSTANCE_NAME

domain=$(ynh_app_setting_get $app domain)
path_url=$(ynh_app_setting_get $app path)
port=$(ynh_app_setting_get $app port)
peer_port=$(ynh_app_setting_get $app peer_port)

#=================================================
# CHECK IF THE APP CAN BE RESTORED
#=================================================

ynh_webpath_available $domain $path_url \
	|| ynh_die "Path not available: ${domain}${path_url}"

#=================================================
# STANDARD RESTORE STEPS
#=================================================
# RESTORE OF THE NGINX CONFIGURATION
#=================================================

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

#=================================================
# OPEN PORTS
#=================================================

yunohost firewall allow --no-upnp TCP $port >/dev/null 2>&1
yunohost firewall allow Both $peer_port >/dev/null 2>&1

#=================================================
# SPECIFIC RESTORE
#=================================================
# REINSTALL TRANSMISSION
#=================================================

ynh_install_app_dependencies transmission-daemon transmission-cli transmission-common acl

#=================================================
# RESTORE TRANSMISSION CONFIGURATION
#=================================================

# Transmission has to be stopped before modifying its config
systemctl stop transmission-daemon

ynh_secure_remove /etc/transmission-daemon/settings.json
ynh_restore_file /etc/transmission-daemon/settings.json

#=================================================
# RESTORE DATA
#=================================================

ynh_secure_remove /usr/share/transmission
ynh_restore_file /usr/share/transmission

ynh_secure_remove /var/lib/transmission-daemon
ynh_restore_file /var/lib/transmission-daemon

# The data directory is restored only if it's in the backup.
# If the backup have made with backup_core_only option, this directory didn't saved.
if [ -d "${YNH_APP_BACKUP_DIR}/home/yunohost.transmission" ]
then
	ynh_restore_file "/home/yunohost.transmission"
else
	mkdir -p /home/yunohost.transmission/{progress,completed,watched}
	chown -R debian-transmission:www-data /home/yunohost.transmission/
	chown -R debian-transmission: /home/yunohost.transmission/{progress,watched}
	chmod -R 640 /home/yunohost.transmission
	chmod -R 777 /home/yunohost.transmission/watched
fi
# Remove the backup_core_only option from the settings.yml
ynh_app_setting_delete $app backup_core_only

#=================================================
# YUNOHOST MULTIMEDIA INTEGRATION
#=================================================

ynh_multimedia_build_main_dir
# Set rights on transmission directory (parent need to be readable by other, and progress need to be writable by multimedia. Because files will move)
ynh_multimedia_addfolder "/home/yunohost.transmission" "share/Torrents"
# And share completed directory
ynh_multimedia_addfolder "/home/yunohost.transmission/completed" "share/Torrents"
# Share also watched directory, to allow to use it easily
ynh_multimedia_addfolder "/home/yunohost.transmission/watched" "share/Torrent to download"

#=================================================
# ENABLE SERVICE IN ADMIN PANEL
#=================================================

yunohost service add transmission-daemon --log "/var/log/syslog"

#=================================================
# START TRANSMISSION
#=================================================

systemctl start transmission-daemon

#=================================================
# RELOAD NGINX
#=================================================

systemctl reload nginx