#!/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_script_progression --message="Loading settings..."

app=$YNH_APP_INSTANCE_NAME

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

#=================================================
# CHECK IF THE APP CAN BE RESTORED
#=================================================
ynh_script_progression --message="Validating restoration parameters..."

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

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

ynh_restore_file --origin_path="/etc/nginx/conf.d/$domain.d/$app.conf"

#=================================================
# OPEN PORTS
#=================================================
ynh_script_progression --message="Configuring firewall..." --weight=13

ynh_exec_warn_less yunohost firewall allow --no-upnp TCP $port
ynh_exec_warn_less yunohost firewall allow Both $peer_port

#=================================================
# SPECIFIC RESTORE
#=================================================
# REINSTALL TRANSMISSION
#=================================================
ynh_script_progression --message="Reinstalling Transmission..." --weight=16

# Define and install dependencies
ynh_install_app_dependencies $pkg_dependencies

#=================================================
# RESTORE TRANSMISSION CONFIGURATION
#=================================================
ynh_script_progression --message="Restoring Transmission configuration..." --weight=2

# Transmission has to be stopped before modifying its config
ynh_systemd_action --service_name=transmission-daemon --action=stop

ynh_secure_remove --file=/etc/transmission-daemon/settings.json
ynh_restore_file --origin_path=/etc/transmission-daemon/settings.json

if [ -e /proc/sys/net/core/rmem_max ]
then
    ynh_restore_file --origin_path="/etc/sysctl.d/90-transmission.conf"
    sysctl --load=/etc/sysctl.d/90-transmission.conf
fi

#=================================================
# RESTORE DATA
#=================================================
ynh_script_progression --message="Restoring transmission data..."

ynh_secure_remove --file=/usr/share/transmission
ynh_restore_file --origin_path=/usr/share/transmission

ynh_secure_remove --file=/var/lib/transmission-daemon
ynh_restore_file --origin_path=/var/lib/transmission-daemon

# Use --not_mandatory for the data directory, because if the backup has been made with BACKUP_CORE_ONLY, there's no data into the backup.
ynh_restore_file --origin_path="/home/yunohost.transmission" --not_mandatory

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

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

#=================================================
# YUNOHOST MULTIMEDIA INTEGRATION
#=================================================
ynh_script_progression --message="Adding multimedia directories..." --weight=4

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 --source_dir="/home/yunohost.transmission" --dest_dir="share/Torrents"
# And share completed directory
ynh_multimedia_addfolder --source_dir="/home/yunohost.transmission/completed" --dest_dir="share/Torrents"
# Share also watched directory, to allow to use it easily
ynh_multimedia_addfolder --source_dir="/home/yunohost.transmission/watched" --dest_dir="share/Torrent to download"

#=================================================
# START TRANSMISSION
#=================================================
ynh_script_progression --message="Starting transmission..."

ynh_systemd_action --service_name=transmission-daemon --action=start

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

yunohost service add transmission-daemon --description="BitTorrent Client" --log="/var/log/syslog" --needs_exposed_ports="$peer_port"

#=================================================
# GENERIC FINALIZATION
#=================================================
# RELOAD NGINX AND PHP-FPM
#=================================================
ynh_script_progression --message="Reloading NGINX web server..." --weight=2

ynh_systemd_action --service_name=nginx --action=reload

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

ynh_script_progression --message="Restoration completed for $app" --last