#!/bin/bash

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

source /usr/share/yunohost/helpers

#=================================================
# LOAD SETTINGS
#=================================================
ynh_script_progression --message="Loading installation settings..." --weight=1

app=$YNH_APP_INSTANCE_NAME

domain=$(ynh_app_setting_get --app=$app --key=domain)
path_url=$(ynh_app_setting_get --app=$app --key=path)
final_path=$(ynh_app_setting_get --app=$app --key=final_path)
language=$(ynh_app_setting_get --app=$app --key=language)

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

upgrade_type=$(ynh_check_app_version_changed)

#=================================================
# ENSURE DOWNWARD COMPATIBILITY
#=================================================
ynh_script_progression --message="Ensuring downward compatibility..." --weight=1

# If final_path doesn't exist, create it
if [ -z "$final_path" ]; then
	final_path=/var/www/$app
	ynh_app_setting_set --app=$app --key=final_path --value=$final_path
fi

# Save the language used if not present
if [ -z "$language" ]; then
  language="en"
  ynh_app_setting_set --app=$app --key=language --value=$language
fi

#=================================================
# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
#=================================================
ynh_script_progression --message="Backing up $app before upgrading (may take a while)..." --weight=3

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

#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================

if [ "$upgrade_type" == "UPGRADE_APP" ]
then
	ynh_script_progression --message="Upgrading source files..." --weight=4

	# Download, check integrity, uncompress and patch the source from app.src
	#ynh_setup_source --dest_dir="$final_path"
	mkdir -p $final_path
	
	if [ "$language" = "fr" ]; then
	cp -a ../sources/empty_fr.html $final_path/empty.html
	else 
	cp -a ../sources/empty.html $final_path/empty.html
	fi
fi

#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Upgrading NGINX web server configuration..." --weight=2

# Create a dedicated NGINX config
ynh_add_nginx_config

#=================================================
# SECURE FILES AND DIRECTORIES
#=================================================

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

#=================================================
# RELOAD NGINX
#=================================================
ynh_script_progression --message="Reloading NGINX web server..." --weight=1

ynh_systemd_action --service_name=nginx --action=reload

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

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