#!/bin/bash

set -eu

app=$YNH_APP_INSTANCE_NAME

# Retrieve arguments
domain=$YNH_APP_ARG_DOMAIN
path=$YNH_APP_ARG_PATH
admin=$YNH_APP_ARG_ADMIN
email=$YNH_APP_ARG_EMAIL


isp_name=$YNH_APP_ARG_ISP_NAME
isp_site=$YNH_APP_ARG_ISP_SITE
isp_zone=$YNH_APP_ARG_ISP_ZONE
latitude=$YNH_APP_ARG_LATITUDE
longitude=$YNH_APP_ARG_LONGITUDE
zoom=$YNH_APP_ARG_ZOOM
cnil_link=$YNH_APP_ARG_CNIL_LINK
cnil_number=$YNH_APP_ARG_CNIL_NUMBER
url_contact=$YNH_APP_ARG_URL_CONTACT
secret=$(ynh_string_random 120)

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

# Check if admin exists
ynh_user_exists $admin \
    || ynh_die "Wrong admin"

ynh_app_setting_set "$app" admin "$admin"
ynh_app_setting_set "$app" email "$email"

ynh_app_setting_set "$app" isp_name "$isp_name"
ynh_app_setting_set "$app" isp_site "$isp_site"
ynh_app_setting_set "$app" isp_zone "$isp_zone"
ynh_app_setting_set "$app" latitude "$latitude"
ynh_app_setting_set "$app" longitude "$longitude"
ynh_app_setting_set "$app" zoom "$zoom"
ynh_app_setting_set "$app" cnil_link "$cnil_link"
ynh_app_setting_set "$app" cnil_number "$cnil_number"
ynh_app_setting_set "$app" url_contact "$url_contact"
ynh_app_setting_set "$app" secret "$secret"

# Check domain/path availability
sudo yunohost app checkurl "${domain}${path}" -a "$app" \
    || ynh_die "Path not available: ${domain}${path}"

# Dependencies
ynh_package_install python3-pip python3-virtualenv


# Delete db and user if exit with an error
function exit_properly
{
    set +e
  	sudo rm -Rf /opt/$app
  	sudo rm -f /etc/nginx/conf.d/$domain.d/$app.conf
  	sudo service nginx reload
  	sudo yunohost service remove $app
  	sudo rm -f /etc/systemd/system/$app.service
  	sudo systemctl daemon-reload
    sudo userdel $app
    sudo rm -Rf $final_path
    exit 1
}
trap exit_properly ERR


# Copy files to the right place
final_path=/opt/$app
sudo mkdir -p $final_path
sudo cp -a ../sources/. $final_path

# Install venv
# It seems that python3.4 venv is broken, we need to setup pip manually to fix that
# http://stackoverflow.com/questions/26215790/venv-doesnt-create-activate-script-python3
python3 -m venv --without-pip $final_path/venv

set +o nounset
source $final_path/venv/bin/activate
set -o nounset
curl https://bootstrap.pypa.io/get-pip.py | python
set +o nounset
deactivate
set -o nounset

alias py='$final_path/venv/bin/python3'
set +o nounset
source $final_path/venv/bin/activate
set -o nounset
$final_path/venv/bin/pip install gunicorn
$final_path/venv/bin/pip install -r $final_path/requirements/base.txt
set +o nounset
deactivate
set -o nounset


# Configuration Django
sed -i "s@YNH_APP_ARG_DOMAIN@$domain@g" ../conf/local.py
sed -i "s@YNH_APP_ARG_PATH@$path@g" ../conf/local.py
sed -i "s@YNH_APP_PREFIX@${path#"/"}@g" ../conf/local.py
sed -i "s#YNH_APP_ARG_EMAIL#$email#g" ../conf/local.py
sed -i "s#YNH_APP_SECRET_KEY#$secret#g" ../conf/local.py
sed -i "s#YNH_APP_ARG_ISP_NAME#$isp_name#g" ../conf/local.py
sed -i "s#YNH_APP_ARG_ISP_SITE#$isp_site#g" ../conf/local.py
sed -i "s#YNH_APP_ARG_ISP_ZONE#$isp_zone#g" ../conf/local.py
sed -i "s#YNH_APP_ARG_LATITUDE#$latitude#g" ../conf/local.py
sed -i "s#YNH_APP_ARG_LONGITUDE#$longitude#g" ../conf/local.py
sed -i "s#YNH_APP_ARG_ZOOM#$zoom#g" ../conf/local.py
sed -i "s#YNH_APP_ARG_CNIL_LINK#$cnil_link#g" ../conf/local.py
sed -i "s#YNH_APP_ARG_CNIL_NUMBER#$cnil_number#g" ../conf/local.py
sed -i "s#YNH_APP_ARG_URL_CONTACT#$url_contact#g" ../conf/local.py
sudo cp ../conf/local.py $final_path/wifiwithme/settings/local.py

# Set production
sudo sed -i "s@wifiwithme\.settings\.dev@wifiwithme.settings.prod@g" $final_path/manage.py
sudo sed -i "s@wifiwithme\.settings@wifiwithme.settings.prod@g" $final_path/wifiwithme/wsgi.py
sudo ln -s $final_path/wifiwithme/static $final_path/static

# Set permissions
sudo useradd $app -d $final_path || echo "User already exists"
sudo chown -R $app:www-data $final_path


# Log folder
sudo mkdir -p /var/log/$app
sudo chown -R $app /var/log/$app
sudo chgrp -R www-data /var/log/$app

# Reload Nginx and regenerate SSOwat conf
sudo yunohost app addaccess $app -u $admin

old_pwd=$(pwd)
cd $final_path
set +o nounset
source $final_path/venv/bin/activate
sudo $final_path/venv/bin/python3 manage.py migrate --noinput
set -o nounset
cd $old_pwd

# 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@YNH_APP_INSTANCE_NAME@$app@g" ../conf/nginx.conf
sudo cp ../conf/nginx.conf /etc/nginx/conf.d/$domain.d/$app.conf

# Service gunicorn
sudo sed -i "s@YNH_APP_INSTANCE_NAME@$app@g" ../conf/gunicorn_config.py
sudo sed -i "s@YNH_APP_INSTANCE_NAME@$app@g" ../conf/gunicorn.service
sudo cp ../conf/gunicorn.service /etc/systemd/system/$app.service
sudo systemctl daemon-reload
sudo cp ../conf/gunicorn_config.py /opt/$app/

# Set permissions to directory
sudo useradd $app -d $final_path || echo "User already exists"
sudo chown $app:www-data -R $final_path

## Reload Nginx and regenerate SSOwat conf
sudo service nginx reload
sudo systemctl start $app
sudo systemctl enable $app
sudo yunohost service add $app -l /var/log/gunicorn/$app.log

ynh_app_setting_set "$app" skipped_uris "/"
sudo yunohost app ssowatconf