#!/bin/bash

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

source ../settings/scripts/_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

#=================================================
# LOAD SETTINGS
#=================================================

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)
salt=$(ynh_app_setting_get --app=$app --key=salt)
db_name=$(ynh_app_setting_get --app=$app --key=db_name)
db_user=$db_name
db_pwd=$(ynh_app_setting_get --app=$app --key=psqlpwd)

#=================================================
# CHECK IF THE APP CAN BE RESTORED
#=================================================

architecture=$(ynh_detect_arch)
# Check machine architecture (in particular, we don't support ARM and 32bit machines)
if [ $architecture == "i386" ]
then
	ynh_die --message="Sorry, because of nodejs framework, this app can't be installed on i386 (32 bits) machine."
fi

ynh_webpath_available "$domain" "$path_url" \
	|| ynh_die "Path not available: ${domain}${path_url}"
test ! -d "$final_path" \
	|| ynh_die "There is already a directory: $final_path "

#=================================================
# STANDARD RESTORATION STEPS
#=================================================
# RESTORE THE NGINX CONFIGURATION
#=================================================

ynh_restore_file "/etc/nginx/conf.d/$domain.d/$app.conf"

#=================================================
# RESTORE THE APP MAIN DIR
#=================================================
ynh_script_progression --message="Restoring files"

ynh_restore_file "$final_path"

#=================================================
# RECREATE THE DEDICATED USER
#=================================================
ynh_script_progression --message="Creating system user"

ynh_system_user_create "$app"

#=================================================
# RESTORE USER RIGHTS
#=================================================

# Restore permissions on app files
chown -R $app: "$final_path"
chmod 600 "$final_path/config.ini"

#=================================================
# SPECIFIC RESTORATION
#=================================================
# REINSTALL DEPENDENCIES
#=================================================
ynh_script_progression --message="Installing app dependencies"

ynh_exec_warn_less ynh_install_app_dependencies $pkg_dependencies

#=================================================
# INSTALL NODEJS
#=================================================
ynh_script_progression --message="Installing nodejs"

ynh_exec_warn_less ynh_install_nodejs --nodejs_version=$nodejs_version

#=================================================
# RESTORE THE POSTGRESQL DATABASE
#=================================================
ynh_script_progression --message="Restoring database"

ynh_psql_test_if_first_run
ynh_print_OFF
ynh_psql_setup_db --db_user=$db_user --db_name=$db_name --db_pwd=$db_pwd
ynh_print_ON
ynh_psql_execute_file_as_root --file="./db.sql" --database=$db_name

#=================================================
# RESTORE SYSTEMD
#=================================================

ynh_restore_file "/etc/systemd/system/$app.service"
systemctl enable $app.service --quiet

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

# Start a systemd service
ynh_systemd_action --service_name=$app --action="start"

#=================================================
# GENERIC FINALIZATION
#=================================================
# RELOAD NGINX
#=================================================
ynh_script_progression --message="Reloading NGINX web server..."

ynh_systemd_action --service_name=nginx --action=reload

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

ynh_script_progression --message="Restoration completed for $app" --last