#!/bin/bash

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

# Get app instance name
app=$YNH_APP_INSTANCE_NAME

# Source app helpers
. /usr/share/yunohost/helpers

# Retrieve arguments
domain=$(ynh_app_setting_get "$app" domain)
path=$(ynh_app_setting_get "$app" path)
rpcpassword=$(ynh_app_setting_get "$app" rpcpassword)
watchdir=$(ynh_app_setting_get "$app" watchdir)

# Remove trailing "/" for next commands
path=${path%/}

# Open port in firewall
sudo yunohost firewall allow TCP 51413 > /dev/null 2>&1

# Upgrade official debian package
sudo apt-get install transmission-daemon -y -qq

# Make directories and set rights
sudo mkdir -p /home/yunohost.transmission/{progress,completed,watched}
sudo chown -R debian-transmission:www-data /home/yunohost.transmission/
sudo chown -R debian-transmission:debian-transmission /home/yunohost.transmission/progress /home/yunohost.transmission/watched
sudo find /home/yunohost.transmission/ -type f | while read LINE; do sudo chmod 640 "$LINE" ; done
sudo find /home/yunohost.transmission/ -type d | while read LINE; do sudo chmod 750 "$LINE" ; done
sudo find /home/yunohost.transmission/watched -type d | while read LINE; do sudo chmod 770 "$LINE" ; done
# Add watchdir in settings if it does not exist yet (previous versions)
if [ -z "$watchdir" ]; then
    ynh_app_setting_set "$app" watchdir "/home/yunohost.transmission/watched"
fi

# YunoHost multimedia
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"

# Create RPC password if none exists
if [ -z "$rpcpassword" ]; then
    rpcpassword=$(ynh_string_random)
	ynh_app_setting_set "$app" rpcpassword "$rpcpassword"
fi

# Configure Transmission and reload
sudo service transmission-daemon stop
sed -i "s@RPCPASSWORDTOCHANGE@$rpcpassword@g" ../conf/settings.json
sed -i "s@PATHTOCHANGE@$path@g" ../conf/settings.json
sudo cp ../conf/settings.json /etc/transmission-daemon/settings.json
sudo service transmission-daemon start

# Patch sources to add a download button
if ! grep 'toolbar-downloads' /usr/share/transmission/web/index.html --quiet; then

    sudo cp ../sources/toolbar-downloads.png /usr/share/transmission/web/style/transmission/images/toolbar-downloads.png
    sudo bash -c 'cat ../sources/ynh_common.css >> /usr/share/transmission/web/style/transmission/common.css'
    sudo sed -i "s@<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>@g" /usr/share/transmission/web/index.html
fi

# Configure Nginx and reload
sed -i "s@PATHTOCHANGE@$path@g" ../conf/nginx.conf
sudo cp ../conf/nginx.conf /etc/nginx/conf.d/$domain.d/$app.conf
sudo service nginx reload