#!/bin/bash

# Exit on command errors and treat unset variables as an error
set -eu

app=$YNH_APP_INSTANCE_NAME

# Source YunoHost helpers
source /usr/share/yunohost/helpers

# Backup configuration files
ynh_backup "/etc/influxdb" "conf_influxdb"
ynh_backup "/etc/grafana" "conf_grafana"
ynh_backup "/var/lib/grafana/plugins" "conf_grafana_plugins"

# Backup InfluxDB data
# Source: http://stackoverflow.com/questions/39501416/how-to-restore-data-base-using-influxd
TMPDIR=$(mktemp -d)
influx -database opentsdb -execute "show series" && sudo influxd backup -database opentsdb $TMPDIR
ynh_backup "$TMPDIR" "influxdb_data"

# Dump the Grafana database
dbname=$app
dbuser=$app
dbpass=$(ynh_app_setting_get "$app" mysqlpwd)
mysqldump -u "$dbuser" -p"$dbpass" --no-create-db "$dbname" > ./dump.sql

# Copy NGINX configuration
domain=$(ynh_app_setting_get "$app" domain)
ynh_backup "/etc/nginx/conf.d/${domain}.d/${app}.conf" "nginx.conf"