#!/bin/bash

#=================================================
# GENERIC START
#=================================================
# IMPORT GENERIC HELPERS
#=================================================
set -eu
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=$YNH_APP_ARG_DOMAIN
path_url=$YNH_APP_ARG_PATH
admin=$YNH_APP_ARG_ADMIN
is_public=$YNH_APP_ARG_IS_PUBLIC

# This is a multi-instance app, meaning it can be installed several times independently
# The id of the app as stated in the manifest is available as $YNH_APP_ID
# The instance number is available as $YNH_APP_INSTANCE_NUMBER (equals "1", "2", ...)
# The app instance name is available as $YNH_APP_INSTANCE_NAME
#    - the first time the app is installed, YNH_APP_INSTANCE_NAME = ynhexample
#    - the second time the app is installed, YNH_APP_INSTANCE_NAME = ynhexample__2
#    - ynhexample__{N} for the subsequent installations, with N=3,4, ...
# The app instance name is probably what you are interested the most, since this is
# guaranteed to be unique. This is a good unique identifier to define installation path,
# db names, ...
app=$YNH_APP_INSTANCE_NAME

#=================================================
# CHECK IF THE APP CAN BE INSTALLED WITH THESE ARGS
#=================================================

# Normalize the url path syntax
path_url=$(ynh_normalize_url_path $path_url)

# Check web path availability
ynh_webpath_available $domain $path_url
# Register (book) web path
ynh_webpath_register $app $domain $path_url

final_path=/var/www/$app
test ! -e "$final_path" || ynh_die "This path already contains a folder"

mkdir -p $final_path

#=================================================
# STORE SETTINGS FROM MANIFEST
#=================================================

ynh_app_setting_set $app domain $domain
ynh_app_setting_set $app path $path_url
ynh_app_setting_set $app admin $admin
ynh_app_setting_set $app is_public $is_public

#=================================================
# STANDARD MODIFICATIONS
#=================================================

#=================================================
# INSTALL DEPENDENCIES
#=================================================

ynh_install_app_dependencies libxml2-dev libxslt-dev libfreetype6-dev \
	libjpeg-dev libz-dev libyaml-dev python-dev python-pip python-virtualenv \
	libmysqlclient-dev

#=================================================
# CREATE A MYSQL DATABASE
#=================================================
# If your app uses a MySQL database, you can use these lines to bootstrap
# a database, an associated user and save the password in app settings

db_name=$(ynh_sanitize_dbid $app)
ynh_app_setting_set $app db_name $db_name
ynh_mysql_setup_db $db_name $db_name

# https://docs.weblate.org/en/latest/admin/install.html#unicode-issues-in-mysql
# http://mechanics.flite.com/blog/2014/07/29/using-innodb-large-prefix-to-avoid-error-1071/
ynh_mysql_execute_as_root "ALTER DATABASE $db_name CHARACTER SET utf8mb4;"

cp ../conf/weblate.cnf /etc/mysql/conf.d/$app.cnf
searchString="!includedir /etc/mysql/conf.d/"
if grep -Fxq "$searchString" /etc/mysql/my.cnf
then
	echo "MySQL alread includes conf.d files"
else
	echo "MySQL do not includes conf.d files, edditing /etc/mysql/my.cnf"
	echo "$searchString" >> /etc/mysql/my.cnf
fi

systemctl restart mysql

#=================================================
# NGINX CONFIGURATION
#=================================================

# Create a dedicated nginx config
ynh_add_nginx_config

#=================================================
# CREATE DEDICATED USER
#=================================================

# Create a system user
ynh_system_user_create $app

#=================================================
# SPECIFIC SETUP
#=================================================
# SPECIFIC SETUP uwsgi
#=================================================

# Copy Files
cp ../conf/uwsgi.ini $final_path/uwsgi.ini
ynh_replace_string "__NAME__" "$app" $final_path/uwsgi.ini
ynh_replace_string "__FINALPATH__" "$final_path" $final_path/uwsgi.ini

# Config service
mkdir -p /etc/uwsgi/apps-enabled/
ln -s $final_path/uwsgi.ini /etc/uwsgi/apps-enabled/$app.uwsgi.ini

cp ../conf/uwsgi_service /etc/systemd/system/$app.uwsgi.service
ynh_replace_string "__NAME__" "$app" /etc/systemd/system/$app.uwsgi.service
ynh_replace_string "__FINALPATH__" "$final_path" /etc/systemd/system/$app.uwsgi.service


# Start service
systemctl enable $app.uwsgi.service
systemctl restart $app.uwsgi.service

# Add weblate.uwsgi as a service
yunohost service add $app.uwsgi.service

#=================================================
# PIP INSTALLATION
#=================================================
virtualenv ${final_path}/venv
#run source in a 'sub shell'
(
	set +eu
	source ${final_path}/venv/bin/activate
	${final_path}/venv/bin/pip install Weblate==2.16
	${final_path}/venv/bin/pip install pytz python-bidi PyYaML Babel pyuca pylibravatar pydns mysqlclient
)

#=================================================
# SPECIFIC SETUP settings.py
# https://docs.weblate.org/en/latest/admin/install.html#installation
# TODO: use --extra-search-dir=/path/to/dists
#=================================================
db_pwd=$(ynh_app_setting_get $app mysqlpwd)
admin_mail="$(ynh_user_get_info $admin mail)"
key=$(ynh_string_random)

cp ../conf/settings.py $final_path/venv/lib/python2.7/site-packages/weblate/settings.py

ynh_replace_string "__NAME__"      "$app"        $final_path/venv/lib/python2.7/site-packages/weblate/settings.py
ynh_replace_string "__DB_PWD__"    "$db_pwd"     $final_path/venv/lib/python2.7/site-packages/weblate/settings.py
ynh_replace_string "__ADMIN__"     "$admin"      $final_path/venv/lib/python2.7/site-packages/weblate/settings.py
ynh_replace_string "__ADMINMAIL__" "$admin_mail" $final_path/venv/lib/python2.7/site-packages/weblate/settings.py
ynh_replace_string "__DOMAIN__"    "$domain"     $final_path/venv/lib/python2.7/site-packages/weblate/settings.py
ynh_replace_string "__KEY__"       "$key"        $final_path/venv/lib/python2.7/site-packages/weblate/settings.py
ynh_replace_string "__PATHURL__"   "$path_url"   $final_path/venv/lib/python2.7/site-packages/weblate/settings.py
ynh_replace_string "__FINALPATH__" "$final_path" $final_path/venv/lib/python2.7/site-packages/weblate/settings.py


#=================================================
# SPECIFIC SETUP Filling up the database
# https://docs.weblate.org/en/latest/admin/install.html#filling-up-the-database
#==========================================
(
	set +eu
	source ${final_path}/venv/bin/activate
	export DJANGO_SETTINGS_MODULE="weblate.settings"
	cd ${final_path}
	weblate migrate --noinput
	# generate static files
	weblate collectstatic --noinput
)

#=================================================
# SETUP CRON
#=================================================
cp ../conf/cron_weblate /etc/cron.d/$app
ynh_replace_string "__FINALPATH__" "$final_path/" /etc/cron.d/$app

#=================================================
# STORE THE CHECKSUM OF THE CONFIG FILE
#=================================================

# Calculate and store the config file checksum into the app settings
ynh_store_file_checksum "$final_path/venv/lib/python2.7/site-packages/weblate/settings.py"

#=================================================
# GENERIC FINALIZATION
#=================================================
# SECURE FILES AND DIRECTORIES
#=================================================

# Set permissions to app files
chown -R root: $final_path

#=================================================
# SETUP LOGROTATE
#=================================================

# Use logrotate to manage application logfile(s)
ynh_use_logrotate

#=================================================
# SETUP SSOWAT
#=================================================

if [ $is_public -eq 0 ]
then	# Remove the public access
	ynh_app_setting_delete $app skipped_uris
fi
# Make app public if necessary
if [ $is_public -eq 1 ]
then
	# unprotected_uris allows SSO credentials to be passed anyway.
	ynh_app_setting_set $app unprotected_uris "/"
fi

#=================================================
# RELOAD NGINX
#=================================================

systemctl reload nginx