#!/bin/bash
set -eu

# Charge les fonctions génériques habituellement utilisées dans le script
source fonctions

# Active trap pour arrêter le script si une erreur est détectée.
TRAP_ON

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

# Retrieve arguments
app=$YNH_APP_INSTANCE_NAME
domain=$YNH_APP_ARG_DOMAIN
path=$YNH_APP_ARG_PATH
is_public=$YNH_APP_ARG_IS_PUBLIC
runninguser=$YNH_APP_ARG_RUNNINGUSER
calibrepath=$YNH_APP_ARG_CALIBREPATH
basicauthcreate=$YNH_APP_ARG_BASICAUTHCREATE
basicauthuser=$YNH_APP_ARG_BASICAUTHUSER
basicauthpass=$YNH_APP_ARG_BASICAUTHPASS

# We check variables are not empty
CHECK_VAR "$app" "app name not set"

# Check the path value and correct it (adds / at begining and removes it at the end)
CHECK_PATH
CHECK_CALIBREPATH

# Check domain and path availibility
CHECK_DOMAINPATH
# Check destination folder is not used already
CHECK_FINALPATH

final_path=/var/www/$app

# Define variables and Save app settings
ynh_app_setting_set "$app" domain "$domain"
ynh_app_setting_set "$app" path "$path"
ynh_app_setting_set "$app" is_public "$is_public"
ynh_app_setting_set "$app" final_path "$final_path"
ynh_app_setting_set "$app" runninguser "$runninguser"
ynh_app_setting_set "$app" calibrepath "$calibrepath"
ynh_app_setting_set "$app" basicauthcreate "$basicauthcreate"

finalnginxconf="/etc/nginx/conf.d/${domain}.d/${app}.conf"
ynh_app_setting_set "$app" finalnginxconf "$finalnginxconf"

finalphpconf="/etc/php5/fpm/pool.d/${app}.conf"
ynh_app_setting_set "$app" finalphpconf "$finalphpconf"

# We install dependencies
sudo apt-get install --quiet --assume-yes php5-gd php5-sqlite php5-json php5-intl

# Creation of folder
#sudo rm -rf $final_path
sudo mkdir -p $final_path

# Site adjustments
sudo cp ../conf/config_local.php ../sources/
sed -i "s@CALIBRETOCHANGE@$calibrepath@g" ../sources/config_local.php
timezone=`sudo cat /etc/timezone`;
sed -i "s@TIMEZONETOCHANGE@$timezone@g" ../sources/config_local.php

sudo cp ../conf/robots.txt ../sources/

# To be done : make it an if loop

# Add basic auth if requested
if [ "$basicauthcreate" = "Yes" ];
then
	ynh_app_setting_set "$app" basicauthuser "$basicauthuser"
	ynh_app_setting_set "$app" basicauthpass "$basicauthpass"

	# Generation of the htpasswd file according https://www.nginx.com/resources/wiki/community/faq/
	SALT="$(openssl rand -base64 3)"
	(SHA1=$(printf "$basicauthpass$SALT" |
	openssl dgst -binary -sha1 | xxd -ps |
	sed 's#$#'"`echo -n $SALT | xxd -ps`"'#' |
	xxd -r -ps |
	base64);printf "$basicauthuser:{SSHA}$SHA1\n" >> ../sources/htpasswd)

	# Modif nginx
	sed -i "s|^.*\bauth_basic\b.*$|       auth_basic \"Private Library\";|" ../conf/nginx.conf;
	sed -i "s|^.*\bauth_basic_user_file\b.*$|       auth_basic_user_file $final_path/htpasswd;|" ../conf/nginx.conf;
else
	echo "No basic auth";
fi

# Base site
sudo cp -a ../sources/* $final_path/

# Set permissions
sudo chmod 775 -R $final_path
sudo chown -hR $runninguser:$runninguser $final_path

if [ "$basicauthcreate" = "Yes" ];
then
	sudo chmod 440 $final_path/htpasswd
	sudo chown www-data:www-data $final_path/htpasswd
else
	echo "Nothing to do"
fi


# Modify Nginx configuration file and copy it to Nginx conf directory
sed -i "s@PATHTOCHANGE@$path@g" ../conf/nginx.conf
sed -i "s@ALIASTOCHANGE@$final_path/@g" ../conf/nginx.conf
sed -i "s@NAMETOCHANGE@$app@g" ../conf/nginx.conf
sudo cp ../conf/nginx.conf $finalnginxconf


sed -i "s@NAMETOCHANGE@$app@g" ../conf/php-fpm.conf
sed -i "s@FOLDERTOCHANGE@$final_path@g" ../conf/php-fpm.conf
sed -i "s@USERTOCHANGE@$runninguser@g" ../conf/php-fpm.conf

sudo cp ../conf/php-fpm.conf $finalphpconf
sudo chown root: $finalphpconf
sudo chmod 644 $finalphpconf

# Make app public if necessary
is_public=$(ynh_app_setting_get $app is_public)
if [ "$is_public" = "Yes" ];
then
	ynh_app_setting_set $app skipped_uris "/"
fi


# Reload Nginx and regenerate SSOwat conf
sudo service php5-fpm reload
sudo service nginx reload
sudo yunohost app ssowatconf
