#!/bin/bash

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

source ../settings/scripts/_common.sh
source ../settings/scripts/experimental_helper.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
#=================================================
ynh_script_progression --message="Loading installation settings..." --weight=2

app=$YNH_APP_INSTANCE_NAME

domain=$(ynh_app_setting_get --app=$app --key=domain)
server_name=$(ynh_app_setting_get --app=$app --key=server_name)
final_path=$(ynh_app_setting_get --app=$app --key=final_path)

if [[ ! "$(systemctl status matrix-$app.service)" =~ "Active: inactive (dead)" ]]; then
    ynh_print_warn --message="It's hightly recommended to make your backup when the service is stopped. Please stop $app service with this command before to run the backup 'systemctl stop matrix-$app.service'"
fi

#=================================================
# SET CONSTANTS
#=================================================

synapse_user="matrix-$app"
synapse_db_name="matrix_$app"
synapse_db_user="matrix_$app"
upstream_version=$(ynh_app_upstream_version)
final_www_path="/var/www/$app"
data_path="/home/yunohost.app/matrix-$app"

#=================================================
# STANDARD BACKUP STEPS
#=================================================
# BACKUP THE APP MAIN DIR
#=================================================
ynh_script_progression --message="Backing up the main app directory..." --weight=1

ynh_backup --src_path="$final_path"
ynh_backup --src_path="$final_www_path"

#=================================================
# BACKUP THE NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Backing up nginx web server configuration..." --weight=1

# BACKUP THE PHP-FPM CONFIGURATION
ynh_backup --src_path "/etc/php/7.0/fpm/pool.d/$app.conf"

ynh_backup --src_path="/etc/nginx/conf.d/$domain.d/$app.conf"
if yunohost --output-as plain domain list | grep -q "^$server_name$"
then
    ynh_backup --src_path="/etc/nginx/conf.d/${server_name}.d/${app}_server_name.conf"
fi

#=================================================
# BACKUP THE POSTGRESQL DATABASE
#=================================================
ynh_script_progression --message="Backing up the PostgreSQL database..." --weight=2

ynh_psql_dump_db --database="$synapse_db_name" > ${YNH_CWD}/dump.sql

#=================================================
# BACKUP FAIL2BAN CONFIGURATION
#=================================================
ynh_script_progression --message="Backing up fail2ban configuration" --weight=1

ynh_backup --src_path="/etc/fail2ban/jail.d/$app.conf"
ynh_backup --src_path="/etc/fail2ban/filter.d/$app.conf"

#=================================================
# SPECIFIC BACKUP
#=================================================
# BACKUP SYNAPSE CONFIG
#=================================================
ynh_script_progression --message="Backing up synapse configuration..." --weight=2

ynh_backup --src_path="/etc/matrix-$app"

#=================================================
# BACKUP SYSTEMD
#=================================================
ynh_script_progression --message="Backing up systemd configuration..." --weight=1

ynh_backup --src_path="/etc/default/matrix-$app"
ynh_backup --src_path="/etc/systemd/system/matrix-$app.service"
ynh_backup --src_path="/etc/default/coturn-$app"
ynh_backup --src_path="/etc/systemd/system/coturn-$app.service"

#=================================================
# BACKUP SYNAPSE DATA
#=================================================
ynh_script_progression --message="Backing up synapse data..." --weight=1

ynh_backup --src_path="$data_path" --is_big=1

#=================================================
# BACKUP SYNAPSE LOG
#=================================================
ynh_script_progression --message="Backing up synapse log..." --weight=1

ynh_backup --src_path="/var/log/matrix-$app"

#=================================================
# BACKUP HOOKS
#=================================================
ynh_script_progression --message="Backing up synapse hook..." --weight=1

# Copy hook
ynh_backup --src_path "/etc/yunohost/hooks.d/post_cert_update/50-$app"

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

ynh_script_progression --message="Backup script completed for $app. (YunoHost will then actually copy those files to the archive)." --last