#!/bin/bash

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

# Keep this path for calling _common.sh inside the execution's context of backup and restore scripts
source ../settings/scripts/_common.sh
source /usr/share/yunohost/helpers

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

ynh_clean_setup () {
	ynh_clean_check_starting
}
# Exit if an error occurs during the execution of the script
ynh_abort_if_errors

#=================================================
# LOAD SETTINGS
#=================================================
ynh_script_progression --message="Loading installation 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)
datadir=$(ynh_app_setting_get --app=$app --key=datadir)

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

#=================================================
# STANDARD RESTORATION STEPS
#=================================================
# RESTORE THE DATA DIRECTORY
#=================================================
ynh_script_progression --message="Restoring the data directory..."

ynh_restore_file --origin_path="$datadir" --not_mandatory

mkdir -p $datadir/{progress,completed,watched}

chmod -R 764 $datadir
chmod -R 777 $datadir/watched
chown -R debian-transmission:www-data "$datadir"
chown -R debian-transmission: $datadir/{progress,watched}

#=================================================
# SPECIFIC RESTORATION
#=================================================
# REINSTALL DEPENDENCIES
#=================================================
ynh_script_progression --message="Reinstalling dependencies..." --weight=16

# Define and install dependencies
ynh_install_app_dependencies $pkg_dependencies

#=================================================
# RESTORE THE NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Restoring the NGINX web server configuration..."

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

#=================================================
# RESTORE VARIOUS FILES
#=================================================
ynh_script_progression --message="Restoring various files..." --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

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

#=================================================
# 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

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

#=================================================
# INTEGRATE SERVICE IN YUNOHOST
#=================================================
ynh_script_progression --message="Integrating service in YunoHost..."

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

#=================================================
# START SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Starting a systemd service..."

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

#=================================================
# 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