#!/bin/bash

#=================================================
# GENERIC START
#=================================================
# IMPORT GENERIC HELPERS
#=================================================

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

#=================================================
# LOAD SETTINGS
#=================================================
#REMOVEME? ynh_script_progression --message="Loading installation settings..." --weight=3

#REMOVEME? app=$YNH_APP_INSTANCE_NAME

#REMOVEME? domain=$(ynh_app_setting_get --app=$app --key=domain)
#REMOVEME? path=$(ynh_app_setting_get --app=$app --key=path)
#REMOVEME? admin=$(ynh_app_setting_get --app=$app --key=admin)
#REMOVEME? #REMOVEME? install_dir=$(ynh_app_setting_get --app=$app --key=install_dir)
#REMOVEME? port=$(ynh_app_setting_get --app=$app --key=port)
#REMOVEME? port_hub=$(ynh_app_setting_get --app=$app --key=port_hub)
#REMOVEME? port_http_proxy=$(ynh_app_setting_get --app=$app --key=port_http_proxy)
#REMOVEME? enable_terminal=$(ynh_app_setting_get --app=$app --key=enable_terminal)

#=================================================
# CHECK VERSION
#=================================================

upgrade_type=$(ynh_check_app_version_changed)

#=================================================
# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
#=================================================
#REMOVEME? ynh_script_progression --message="Backing up the app before upgrading (may take a while)..." --weight=48

# Backup the current version of the app
#REMOVEME? ynh_backup_before_upgrade
#REMOVEME? ynh_clean_setup () {
	ynh_clean_check_starting
	# Restore it if the upgrade fails
#REMOVEME? 	ynh_restore_upgradebackup
}
# Exit if an error occurs during the execution of the script
#REMOVEME? ynh_abort_if_errors

#=================================================
# STANDARD UPGRADE STEPS
#=================================================
# STOP SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Stopping a systemd service..." --weight=2

ynh_systemd_action --service_name=$app --action="stop"

#=================================================
# ENSURE DOWNWARD COMPATIBILITY
#=================================================
ynh_script_progression --message="Ensuring downward compatibility..."

# If install_dir doesn't exist, create it
if [ -z "$install_dir" ]; then
#REMOVEME? 	install_dir=/opt/$app
	mkdir -p $install_dir
#REMOVEME? 	ynh_app_setting_set --app=$app --key=install_dir --value=$install_dir
fi

# Cleaning legacy permissions
#REMOVEME? if ynh_legacy_permissions_exists; then
#REMOVEME? 	ynh_legacy_permissions_delete_all

	ynh_app_setting_delete --app=$app --key=is_public
fi

#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Upgrading NGINX web server configuration..." --weight=1

# Create a dedicated NGINX config
ynh_add_nginx_config

#=================================================
# UPGRADE DEPENDENCIES
#=================================================
#REMOVEME? ynh_script_progression --message="Upgrading dependencies..." --weight=10

#REMOVEME? ynh_install_app_dependencies $pkg_dependencies
ynh_exec_warn_less ynh_install_nodejs --nodejs_version=$nodejs_version
ynh_use_nodejs

$ynh_npm install -g configurable-http-proxy npm

#=================================================
# SPECIFIC UPGRADE
#=================================================
# BUILD APP
#=================================================

if [ "$upgrade_type" == "UPGRADE_APP" ]
then
	ynh_script_progression --message="Building app..." --weight=160

#REMOVEME? 	ynh_secure_remove $install_dir/.venv
	python3 -m venv $install_dir/venv
	source $install_dir/venv/bin/activate

	pushd $install_dir
		ynh_exec_warn_less pip install jupyterlab==$jupyterlab_version jupyterhub notebook jupyter_collaboration jupyterhub-ldapauthenticator pyzmq
	popd
fi

#=================================================
# UPDATE A CONFIG FILE
#=================================================
ynh_script_progression --message="Updating a configuration file..."

mkdir -p "$install_dir/config"

path=${path%/}

ynh_add_config --template="../conf/jupyterhub_config.py" --destination="$install_dir/config/jupyterhub_config.py"

ynh_add_config --template="../conf/jupyter_notebook_config.py" --destination="$install_dir/config/jupyter_notebook_config.py"

chown -R root: $install_dir/
chown -R $admin: $install_dir/venv/

#=================================================
# SETUP SYSTEMD
#=================================================
ynh_script_progression --message="Upgrading systemd configuration..."

# Create a dedicated systemd config
ynh_add_systemd_config

#=================================================
# GENERIC FINALIZATION
#=================================================
# INTEGRATE SERVICE IN YUNOHOST
#=================================================
ynh_script_progression --message="Integrating service in YunoHost..."

yunohost service add $app --description="$app daemon"

#=================================================
# START SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Starting a systemd service..."

ynh_systemd_action --service_name=$app --action="start" --line_match="JupyterHub is now running at" --log_path="systemd"

#=================================================
# RELOAD NGINX
#=================================================
#REMOVEME? ynh_script_progression --message="Reloading NGINX web server..."

#REMOVEME? ynh_systemd_action --service_name=nginx --action=reload

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

ynh_script_progression --message="Upgrade of $app completed" --last