#!/bin/bash
set -eu

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

source ./_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

#=================================================
# RETRIEVE ARGUMENTS FROM THE MANIFEST
#=================================================

domain=$YNH_APP_ARG_DOMAIN
path=$YNH_APP_ARG_PATH
is_public=$YNH_APP_ARG_IS_PUBLIC
language=$YNH_APP_ARG_LANG

app=$YNH_APP_INSTANCE_NAME
serviceuser=rocketchat

workdir=$(pwd)

# find suitable port (default 3000)
port=$(ynh_find_port 3000)

# Check domain/path availability
sudo yunohost app checkurl $domain -a $app
if [[ ! $? -eq 0 ]]; then
  ynh_die "domain not available"
fi

final_path="/var/lib/$app"
[[ -d $final_path ]] && ynh_die \
"The destination directory '$final_path' already exists.\
 You should safely delete it before installing this app."

# Save specific settings
ynh_app_setting_set $app node_version $NODE_VERSION
ynh_app_setting_set $app rocketchat_version $ROCKETCHAT_VERSION
ynh_app_setting_set $app serviceuser $serviceuser
ynh_app_setting_set $app port $port
ynh_app_setting_set $app final_path $final_path
ynh_app_setting_set $app path $path
ynh_app_setting_set $app is_public $is_public

#Install dependencies
sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 7F0CEB10 >/dev/null
echo "deb http://repo.mongodb.org/apt/debian jessie/mongodb-org/3.4 main" | sudo tee /etc/apt/sources.list.d/mongodb-org-3.4.list
sudo apt-get update
sudo apt-get install -y mongodb-org gzip curl graphicsmagick npm

# add mongodb to services
sudo yunohost service add mongod -l /var/log/mongodb/mongod.log

# Meteor needs at least this version of node to work.
sudo npm install -g n
sudo n $NODE_VERSION

# Create destination
sudo mkdir -p $final_path

# Create user
id -u $serviceuser || sudo useradd -d "$final_path" -M $serviceuser

# Copy and set systemd configuration
sed -i "s@#ROOTURL#@$domain@g" ../conf/rocketchat.service
sed -i "s@#LOCATION#@${path:-/}@g" ../conf/rocketchat.service
sed -i "s@#PORT#@$port@g" ../conf/rocketchat.service
sed -i "s@#USER#@$serviceuser@g" ../conf/rocketchat.service
sudo cp ../conf/rocketchat.service /etc/systemd/system/
sudo systemctl daemon-reload

# Copy and set nginx configuration
nginx_conf="/etc/nginx/conf.d/${domain}.d/${app}.conf"
sed -i "s@#APP#@$app@g"          ../conf/nginx.conf
sed -i "s@#PATH#@$path@g"        ../conf/nginx.conf
sed -i "s@#PORT#@$port@g"        ../conf/nginx.conf
sed -i "s@#LOCATION#@${path:-/}@g" ../conf/nginx.conf
sed -i "s@#DESTDIR#@$final_path@g"  ../conf/nginx.conf

sudo cp ../conf/nginx.conf "$nginx_conf"

# download and extract rocketchat
echo "Downloading rocket.chat-$ROCKETCHAT_VERSION.gtar from https://rocket.chat/releases/${ROCKETCHAT_VERSION}/download."
sudo curl -s -L -o $final_path/rocket.chat-$ROCKETCHAT_VERSION.gtar "https://rocket.chat/releases/${ROCKETCHAT_VERSION}/download"
SHA_DOWNLOAD=$(sha256sum $final_path/rocket.chat-$ROCKETCHAT_VERSION.gtar | grep -o "^[a-f0-9]*")
if [[ ! "$SHA_DOWNLOAD" == "$ROCKETCHAT_SHASUM" ]]; then
  ynh_die "The sha256sum does not match the configured one"
fi

sudo tar -xzf $final_path/rocket.chat-$ROCKETCHAT_VERSION.gtar -C $final_path --strip-components=1 bundle
sudo rm $final_path/rocket.chat-$ROCKETCHAT_VERSION.gtar

sudo chown -R $serviceuser: $final_path

cd $final_path/programs/server/

sudo npm install --production

cd $workdir

sudo systemctl reload nginx
if [ "$is_public" = "Yes" ];
then
	ynh_app_setting_set "$app" skipped_uris "/"
fi

sudo systemctl start rocketchat.service
sudo systemctl enable rocketchat.service

# add rocketchat to services
sudo yunohost service add rocketchat

# wait for rocketchat to populate db and start
waitforservice

sudo mongo < ../conf/rocketchat_ldap.js

sudo systemctl restart rocketchat.service

waitforservice

sudo yunohost app ssowatconf