#!/bin/bash

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

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)

#=================================================
# FIX OLD THINGS
#=================================================

if [ -z $port ]; then
	ynh_app_setting_set $app port 9091
fi
if [ -z $peer_port ]; then
	ynh_app_setting_set $app peer_port 51413
fi

#=================================================
# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
#=================================================

ynh_app_setting_set $app backup_core_only 1 # Indique au backup/restore de ne pas sauvegarder le dossier de data.
BACKUP_BEFORE_UPGRADE	# Backup the current version of the app
ynh_clean_setup () {
	BACKUP_FAIL_UPGRADE	# restore it if the upgrade fails
}
ynh_abort_if_errors	# Active trap pour arrêter le script si une erreur est détectée.

#=================================================
# CHECK THE PATH
#=================================================

path_url=$(ynh_normalize_url_path $path_url)	# Vérifie et corrige la syntaxe du path.

#=================================================
# STANDARD UPGRADE STEPS
#=================================================
# NGINX CONFIGURATION
#=================================================

# Add a "/" at the end of path_url for next commands
[ "$path_url" = "/" ] || path_url=${path_url}/
ynh_nginx_config

#=================================================
# SPECIFIC UPGRADE
#=================================================
# CREATE DIRECTORIES
#=================================================

sudo mkdir -p /home/yunohost.transmission/{progress,completed,watched}

#=================================================
# SECURING FILES AND DIRECTORIES
#=================================================

sudo chown -R debian-transmission:www-data /home/yunohost.transmission/
sudo chown -R debian-transmission: /home/yunohost.transmission/{progress,watched}
sudo chmod -R 640 /home/yunohost.transmission
sudo chmod -R 777 /home/yunohost.transmission/watched

#=================================================
# CONFIGURE TRANSMISSION
#=================================================

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

# Créé un backup du fichier de config si il a été modifié.
ynh_backup_if_checksum_is_different /etc/transmission-daemon/settings.json

# Create a RPC password
rpcpassword=$(ynh_string_random)
ynh_app_setting_set $app rpcpassword "$rpcpassword"

ynh_replace_string "__RPC_PASSWORD_TO_CHANGE__" "$rpcpassword" ../conf/settings.json
ynh_replace_string "__PATH__" "$path_url" ../conf/settings.json
ynh_replace_string "__PEER_PORT__" "$peer_port" ../conf/settings.json
ynh_replace_string "__PORT__" "$port" ../conf/settings.json
sudo cp ../conf/settings.json /etc/transmission-daemon/settings.json

#=================================================
# STORE THE CHECKSUM OF THE CONFIG FILE
#=================================================

ynh_store_file_checksum /etc/transmission-daemon/settings.json

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

wget -qq https://github.com/YunoHost-Apps/yunohost.multimedia/archive/master.zip
unzip -qq master.zip
sudo ./yunohost.multimedia-master/script/ynh_media_build.sh
# Set rights on transmission directory (parent need to be readable by other, and progress need to be writable by multimedia. Because files will move)
sudo ./yunohost.multimedia-master/script/ynh_media_addfolder.sh --source="/home/yunohost.transmission" --dest="share/Torrents"
# And share completed directory
sudo ./yunohost.multimedia-master/script/ynh_media_addfolder.sh --source="/home/yunohost.transmission/completed" --dest="share/Torrents"
# Share also watched directory, to allow to use it easily
sudo ./yunohost.multimedia-master/script/ynh_media_addfolder.sh --source="/home/yunohost.transmission/watched" --dest="share/Torrent to download"

#=================================================
# PATCH SOURCE TO ADD A DOWNLOAD BUTTON
#=================================================

sudo cp ../sources/extra_files/app/toolbar-downloads.png /usr/share/transmission/web/style/transmission/images/toolbar-downloads.png
if ! grep --quiet "Inserted by Yunohost install script" /usr/share/transmission/web/style/transmission/common.css
then
	sudo bash -c 'cat ../sources/extra_files/app/ynh_common.css >> /usr/share/transmission/web/style/transmission/common.css'
fi
ynh_replace_string "<div id=\"toolbar-inspector\" title=\"Toggle Inspector\"></div>$" "<div id=\"toolbar-inspector\" title=\"Toggle Inspector\"></div><div id=\"toolbar-separator\"></div><a href=\"../../downloads/\" id=\"toolbar-downloads\" title=\"Downloads\" target=\"_blank\"></a>" /usr/share/transmission/web/index.html

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

sudo systemctl start transmission-daemon

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

sudo systemctl reload nginx

#=================================================
# REMOVE BACKUP_CORE_ONLY
#=================================================

ynh_app_setting_delete $app backup_core_only