#!/bin/bash
set -eu

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

source /usr/share/yunohost/helpers
source ./_common.sh

#=================================================
# 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=$YNH_APP_INSTANCE_NAME
dbname=$app
serviceuser=rocketchat

workdir=$(pwd)

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

# if path do not begin with / add a / at the begining
if [ "${path:0:1}" != "/" ]; then
       path="/$path"
fi
# if path do not end with / add a / at the end
if [ "${path:${#path}-1}" != "/" ] && [ ${#path} -gt 1 ]; then
       path="$path/"
fi


# Check domain/path availability
ynh_webpath_available $domain $path
if [[ ! $? -eq 0 ]]; then
  ynh_die "domain not available"
fi

# Register/book a web path for an app
ynh_webpath_register $app $domain $path

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
installdeps

# 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
sed -i "s@#DESTDIR#@$final_path@g" ../conf/rocketchat.service
sed -i "s@#DBNAME#@$dbname@g" ../conf/rocketchat.service
# absolute node path needed
NODE_BIN=$(which node)
sed -i "s@#NODE#@$NODE_BIN@g" ../conf/rocketchat.service
sudo cp ../conf/rocketchat.service /etc/systemd/system/$app.service
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

#set db name into ldap config
sed -i "s@#DBNAME#@$dbname@g" ../conf/rocketchat_ldap.js

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

# download and extract rocketchat
echo "Downloading rocket.chat-$ROCKETCHAT_VERSION.gtar from ${ROCKETCHAT_DOWNLOAD_URI}."
sudo curl -s -L -o $final_path/rocket.chat-$ROCKETCHAT_VERSION.gtar "${ROCKETCHAT_DOWNLOAD_URI}"
SHA_DOWNLOAD=$(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 -u $serviceuser 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 $app.service
sudo systemctl enable $app.service

# add rocketchat to services
sudo yunohost service add $app

# wait for rocketchat to populate db and start
waitforservice

sudo mongo < ../conf/rocketchat_ldap.js

sudo systemctl restart $app.service

waitforservice

sudo yunohost app ssowatconf