#! /bin/bash

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

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

ynh_version=$(sudo yunohost -v | grep "moulinette:" | cut -d' ' -f2 | cut -d'.' -f1,2)

# retrieve arguments
if [ $ynh_version = "2.4" ]; then
	app=$YNH_APP_INSTANCE_NAME
	domain=$YNH_APP_ARG_DOMAIN
	path=$YNH_APP_ARG_PATH
	is_public=$YNH_APP_ARG_IS_PUBLIC
	language=$YNH_APP_ARG_LANGUAGE
	filesize=$YNH_APP_ARG_FILESIZE
	admin=$YNH_APP_ARG_ADMIN
	password=$YNH_APP_ARG_PASSWORD
else
	app=bozon
	domain=$1
	path=$2
	is_public=$3
	language=$4
	filesize=$5
	admin=$6
	password=$7
fi

# Delete files and db if exit with an error
EXIT_PROPERLY () {
	trap '' ERR
	echo -e "\e[91m \e[1m"	# Shell in light red bold
	echo -e "!!\n  $app install's script has encountered an error. Installation was cancelled.\n!!"

	if [ $ynh_version = "2.2" ]; then
		/bin/bash ./remove	# Appel le script remove. En 2.2, ce comportement n'est pas automatique.s
	fi
	exit 1
}
TRAP_ON () {	# Activate signal capture
	trap EXIT_PROPERLY ERR	# Capturing exit signals on error
}
TRAP_OFF () {	# Ignoring signal capture until TRAP_ON
# Pour une raison que j'ignore, la fonction TRAP_ON fonctionne très bien.
# Mais pas la fonction TRAP_OFF...
# Utiliser directement `trap '' ERR` dans le code pour l'utiliser, à la place de la fonction.
	trap '' ERR	# Ignoring exit signals
}
TRAP_ON

# definie useful vars
parent_path=/var/www
final_path=$parent_path/$app
data_path=/home/yunohost.app/$app

# remove trailing slash
[ "$path" != "/" ] && path=${path%/}

# check domain/path availability
sudo yunohost app checkurl $domain$path -a $app
if [[ ! $? -eq 0 ]]; then
	touch /force_stop
fi

# check that admin user is an existing account
sudo yunohost user list --json | grep -q "\"username\": \"$admin\""
if [[ ! $? -eq 0 ]]; then
	echo "Error : the chosen admin user does not exist"
	touch /force_stop
fi

# add required packages
ynh_package_install_from_equivs ../conf/${app}-deps.control || ynh_die "Unable to install dependencies"

# retrieve upstream_version version of bozon
upstream_version=$(cat ../conf/upstream_version)

# save app settings
sudo yunohost app setting $app admin_user -v "$admin"
sudo yunohost app setting $app is_public -v "$is_public"
sudo yunohost app setting $app domain -v "$domain"
sudo yunohost app setting $app path -v "$path"
sudo yunohost app setting $app version -v "$upstream_version"
sudo yunohost app setting $app filesize -v "$filesize"

# download upstream_version version of bozon
wget -nc --quiet https://github.com/broncowdd/BoZoN/archive/$upstream_version.zip -P /tmp
sudo unzip -oq /tmp/$upstream_version.zip -d /tmp
sudo mv /tmp/$upstream_version $parent_path/$app

# copy files to final folder and set permissions
sudo find $final_path -type f -name ".htaccess" | xargs sudo rm
sudo chown -R root: $final_path
sudo find $final_path -type f | xargs sudo chmod 644
sudo find $final_path -type d | xargs sudo chmod 755

# configure config file
sudo sed -i "s@languageuage='en';@languageuage='$language';@g" $final_path/config.php

# create data folders
sudo mkdir -p $final_path/private
sudo mkdir -p $data_path/uploads
sudo ln -s $data_path/uploads $final_path/uploads
sudo mkdir -p $data_path/thumbs
sudo ln -s $data_path/thumbs $final_path/thumbs
sudo chown -R www-data: $final_path/private
sudo chown -R www-data: $data_path/uploads
sudo chown -R www-data: $data_path/thumbs

# configure nginx settings
## path
sudo sed -i "s@YNH_EXAMPLE_PATH@$path@g" ../conf/nginx.conf
sudo sed -i "s@YNH_EXAMPLE_ALIAS@$final_path@g" ../conf/nginx.conf
sudo sed -i "s@YNH_EXAMPLE_APP@${app}@g" ../conf/nginx.conf
## file upload size limit
sudo sed -i "s@YNH_FILE_SIZE@${filesize}@g" ../conf/nginx.conf
## copy final
sudo cp ../conf/nginx.conf /etc/nginx/conf.d/$domain.d/$app.conf

# copy and set php-fpm configuration
## path
sed -i "s@YNH_EXAMPLE_APP@${app}@g" ../conf/php-fpm.conf
sed -i "s@YNH_EXAMPLE_ALIAS@${final_path}@g" ../conf/php-fpm.conf
## file upload size limit
sudo sed -i "s@YNH_FILE_SIZE@${filesize}@g" ../conf/php-fpm.conf
postsize=${filesize%?}.1${filesize: -1}
sudo sed -i "s@YNH_POST_SIZE@${postsize}@g" ../conf/php-fpm.conf
## copy final and set permissions
phpfpm_conf="/etc/php5/fpm/pool.d/${app}.conf"
sudo cp ../conf/php-fpm.conf "$phpfpm_conf"
sudo chown root: $phpfpm_conf
sudo chmod 644 $phpfpm_conf

# create the superadmin
## set temporary public access
sudo yunohost app setting $app unprotected_uris -v "/"
## start app
sudo service nginx reload
sudo yunohost app ssowatconf
## fill the superadmin creation form
curl_path=$([ "$path" == "/" ] || echo $path)
curl -k -X POST \
  --data-urlencode creation="1" \
  --data-urlencode login="$admin" \
  --data-urlencode pass="$password" \
  --data-urlencode confirm="$password" \
  https://$domain$curl_path/index.php?p=admin > /dev/null 2>&1

# if app is private, remove url to SSOWat conf from skipped_uris
if [ "$is_public" = "No" ];
then
    # escape magic chars in vars (lua magic chars are ().%+-*?[^$ according to https://www.lua.org/pil/20.2.html)
    domainluaregex=$(echo "$domain" | sed -e 's/[]().%+*?[^$[]/\%&/g' | sed -e 's/\-/\%&/g')
    pathluaregex=$(echo "$path" | sed -e 's/[]().%+*?[^$[]/\%&/g' | sed -e 's/\-/\%&/g')
    # redirect to SSOwat login in
    sudo yunohost app setting $app unprotected_uris -d
    sudo yunohost app setting $app unprotected_regex -v "$domainluaregex$pathluaregex/index.php%?f=.+$","$domainluaregex$pathluaregex/index.php%?zipfolder=.+$","$domainluaregex$pathluaregex/private/temp/.+%.zip$","$domainluaregex$pathluaregex/core/js/.*$","$domainluaregex$pathluaregex/templates/.*$"
fi

# restart services
sudo service php5-fpm restart || true
sudo service nginx restart || true
sudo yunohost app ssowatconf