#!/bin/bash

#=================================================
# GENERIC STARTING
#=================================================
# IMPORT GENERIC HELPERS
#=================================================

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

#=================================================
# MANAGE FAILURE OF THE SCRIPT
#=================================================

ynh_clean_setup () {
	ynh_clean_check_starting
}
# 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
is_public=$YNH_APP_ARG_IS_PUBLIC

app=$YNH_APP_INSTANCE_NAME

#=================================================
# CHECK IF THE APP CAN BE INSTALLED WITH THIS ARGS
#=================================================
ynh_print_info "Validating installation parameters..."

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

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

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

#=================================================
# STORE SETTINGS FROM MANIFEST
#=================================================
ynh_print_info "Storing installation settings..."

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

#=================================================
# STANDARD MODIFICATIONS
#=================================================
# INSTALL DEPENDENCIES
#=================================================
ynh_print_info "Installing dependencies..."

ynh_install_app_dependencies git build-essential libxslt-dev python-dev python-virtualenv virtualenv python-babel zlib1g-dev libffi-dev libssl-dev python-lxml uwsgi uwsgi-plugin-python

#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_print_info "Configuring nginx web server..."

path_no_root=${path_url%/}
# Create a dedicated nginx config
ynh_add_nginx_config "path_no_root"

#=================================================
# CREATE DEDICATED USER
#=================================================
ynh_print_info "Configuring system user..."

# Create a system user
ynh_system_user_create $app

#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================
ynh_print_info "Setting up source files..."

ynh_app_setting_set $app final_path $final_path
# Download, check integrity, uncompress and patch the source from app.src
ynh_setup_source "$final_path"

#=================================================
# SPECIFIC SETUP
#=================================================
# INSTALL SEARX IN A VIRTUALENV
#=================================================
ynh_print_info "Installing Searx..."

virtualenv --system-site-packages "$final_path"
set +u; source $final_path/bin/activate; set -u
pip install -U setuptools
pip install --requirement $final_path/requirements-ynh.txt

#=================================================
# CONFIGURE SEARX
#=================================================
ynh_print_info "Configuring Searx..."

# Change instance name
ynh_replace_string "instance_name : \"searx\"" "instance_name : \"YunoSearx\"" "$final_path/searx/settings.yml"

# Generate a secret key
ynh_replace_string "secret_key : \"ultrasecretkey\"" "secret_key : \"$(ynh_string_random)\"" "$final_path/searx/settings.yml"

# Modify the base_url parameter, if it's installed in a subpath
if [ "$path_url" != "/" ]
then
  ynh_replace_string "base_url : False" "base_url : https://${domain}${path_url}/" "$final_path/searx/settings.yml"
else
  ynh_replace_string "base_url : False" "base_url : False" "$final_path/searx/settings.yml"
fi
ynh_store_file_checksum "$final_path/searx/settings.yml"

#=================================================
# SET PERMISSIONS ON SEARX DIRECTORY
#=================================================

chown $app: --recursive "$final_path"

#=================================================
# CONFIGURE UWSGI FOR SEARX
#=================================================
ynh_print_info "Configuring uWSGI for Searx..."

cp ../conf/searx.ini /etc/uwsgi/apps-available/$app.ini
ynh_replace_string "__APP__" "$app" /etc/uwsgi/apps-available/$app.ini
ynh_replace_string "__FINALPATH__" "$final_path" /etc/uwsgi/apps-available/$app.ini
ln -s /etc/uwsgi/apps-available/$app.ini /etc/uwsgi/apps-enabled/$app.ini

#=================================================
# ADVERTISE SERVICE IN ADMIN PANEL
#=================================================

# Ajoute le service au monitoring de Yunohost.
yunohost service add uwsgi --log "/var/log/uwsgi/app/$app.log"

#=================================================
# CHECK SEARX STARTING
#=================================================
ynh_print_info "Starting Searx..."

# Wait for searx to be fully started
ynh_systemd_action --service_name=uwsgi --action=restart --line_match="spawned uWSGI master process" --log_path="/var/log/uwsgi/app/$app.log"

#=================================================
# GENERIC FINALISATION
#=================================================
# SETUP SSOWAT
#=================================================
ynh_print_info "Configuring SSOwat..."

# Make app public if necessary
if [ $is_public -eq 1 ]
then
	ynh_app_setting_set $app skipped_uris "/"
fi

#=================================================
# RELOAD NGINX
#=================================================
ynh_print_info "Reloading nginx web server..."

systemctl reload nginx

#=================================================
# END OF SCRIPT
#=================================================

ynh_print_info "Installation of $app completed"