#!/bin/bash

set -e

# Retrieve arguments
domain=$1
path=$2
is_public=$3
final_path=/var/www/shout

# Ensure that it is installed on Debian Jessie
VERSION=$(sed 's/\..*//' /etc/debian_version)
if [[ "$VERSION" == '7' ]]; then
    echo "You need at least Debian 8 (Jessie) to run this app" && exit 1
fi

# Check domain/path availability
sudo yunohost app checkurl $domain$path -a shout
path=${path%/}

# Install dependencies
sudo apt-get update
sudo apt-get install nodejs-legacy npm -y

# Create user
sudo useradd -d $final_path shout \
  || echo "User already created"

# Modify the random username
user=$(dd if=/dev/urandom bs=1 count=200 2> /dev/null | tr -c -d 'A-Za-z0-9' | sed -n 's/\(.\{24\}\).*/\1/p')
sed -i "s@USERTOCHANGE@$user@g" ../conf/user.json
sed -i "s@PATHTOCHANGE@$path/@g" ../conf/config.js

# HACK: Change the socket.io path in the sources
sed -i "s@PATHTOCHANGE@$path@g" ../sources/client/js/shout.js

# Copy files to the right place
sudo mkdir -p $final_path/.shout/users
sudo cp ../conf/config.js $final_path/.shout/
sudo cp ../conf/user.json $final_path/.shout/users/$user.json
sudo cp -a ../sources/* $final_path/

# Set permissions
sudo chown -hR shout $final_path

# Install dependencies
sudo su -c "cd $final_path && /usr/bin/npm install --production" shout

# Modify Nginx configuration file and copy it to Nginx conf directory
if [[ "$path" == "" ]]; then
  sed -i "s@LOCATIONTOCHANGE@/@g" ../conf/nginx.conf
else
  sed -i "s@LOCATIONTOCHANGE@$path@g" ../conf/nginx.conf
fi
sudo cp ../conf/nginx.conf /etc/nginx/conf.d/$domain.d/shout.conf

# Copy systemd service
sudo cp ../conf/systemd.service /etc/systemd/system/shout.service

# Add YunoHost service
sudo yunohost service add shout -l /var/log/syslog

# Make app public if necessary
sudo yunohost app setting shout is_public -v "$is_public"
if [ "$is_public" = "Yes" ];
then
    sudo yunohost app setting shout unprotected_uris -v "/"
fi

# Reload Nginx, shout and regenerate SSOwat conf
sudo service nginx reload
sudo systemctl enable shout
sudo systemctl start shout || sudo systemctl restart shout
sudo yunohost app ssowatconf