#!/bin/bash

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

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

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

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

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

# Transfer and delete the old "password" key
if [ -z "${userpass:-}" ]; then
    userpass="$password"
    ynh_app_setting_set --app="$app" --key="userpass" --value="$userpass"
    ynh_app_setting_delete --app="$app" --key="password"
fi

#=================================================
# SPECIFIC UPGRADE
#=================================================
# UPDATE A CONFIG FILE
#=================================================
ynh_script_progression --message="Updating a configuration file..." --weight=1

ynh_add_config --template="mosquitto.conf" --destination="/etc/mosquitto/conf.d/default.conf"

ynh_delete_file_checksum --file="/etc/mosquitto/passwd"
ynh_add_config --template="passwd" --destination="/etc/mosquitto/passwd"
mosquitto_passwd -U "/etc/mosquitto/passwd"
ynh_store_file_checksum --file="/etc/mosquitto/passwd"

#=================================================
# REAPPLY SYSTEM CONFIGURATIONS
#=================================================
ynh_script_progression --message="Upgrading system configurations related to $app..." --weight=1

# Use logrotate to manage app-specific logfile(s)
ynh_use_logrotate --non-append

yunohost service add "$app" --description="Allows MQTT clients to send/receive data" --log="/var/log/$app/$app.log" --needs_exposed_ports="$port"

#=================================================
# START SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Starting a systemd service..." --weight=1

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

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

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