#!/bin/bash

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

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

#from 2024.2~ynh1
#End of support for mosquitto. However, we still keep trace of if it was installed in order to be able to back it up and remove it correctly
mosquitto=$(ynh_app_setting_get --app=$app --key=mosquitto)
if [[ -z "${mosquitto+x}" ]]; then
	if [[ "$mqtt_domain"="$domain" ]]; then
		ynh_app_setting_set --app="$app" --key=mosquitto --value=0
	else
		ynh_print_warn --message="If you didn't already do it, you should migrate to mosquitto package outside of the app as it will soon not be maintained anymore"
		ynh_app_setting_set --app="$app" --key=mosquitto --value=1
	fi
fi

#=================================================
# CHECK VERSION
#=================================================
ynh_script_progression --message="Checking version..."

upgrade_type=$(ynh_check_app_version_changed)

#=================================================
# STANDARD UPGRADE STEPS
#=================================================
# STOP SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Stopping a systemd service..." --weight=2

ynh_systemd_action --service_name="$app" --action="stop" --log_path="/var/log/$app/$app.log"

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

#Store OS and machine (to be used in restore script)
if [ -z "${OS:+x}" ]; then
	ynh_app_setting_-set --app="$app" --key=OS --value=`lowercase \`uname -s\``
fi
if [ -z "${mach:+x}" ]; then
	mach=`uname -m`
	ynh_app_setting_set --app="$app" --key=mach --value="$mach"
fi

#sudoer file for restarting is not required anymore (from 2024.2~ynh1) as upgrade is managed by the Yunohost Package
if [ -f /etc/sudoers.d/domoticz ]; then
	rm /etc/sudoers.d/domoticz
fi

#Create a dedicated path for the api access
if [ -z "$api_path" ]; then
	if [ "$path" == "/" ]; then
		api_path=/api_/"$app"
	else
		api_path=/api_"$path"
	fi
	ynh_app_setting_set --app="$app" --key=api_path --value="$api_path"
fi

#remove unwanted log folder
if [ -d "/var/log/$app/$app" ]; then
	ynh_secure_remove "/var/log/$app/$app"
fi

#=================================================
# CREATE DEDICATED USER
#=================================================
ynh_script_progression --message="Checking dedicated user permissions..."

#allow user to access USB / serial port to communicate with tools (RFXtrx, Z-wave dongle, etc.) & i2c bus
if grep dialout -q < /etc/group; then
	usermod -a -G dialout "$app"
fi
if grep i2c -q < /etc/group; then
	usermod -a -G i2c "$app"
fi
if grep gpio -q < /etc/group; then
	usermod -a -G gpio "$app"
fi

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

if [ "$upgrade_type" == "UPGRADE_APP" ]
then
	ynh_script_progression --message="Upgrading source files..." --weight=15
	ynh_setup_source --dest_dir="$install_dir"
	#Create the database file
	if [ ! -f "$install_dir"/domoticz.db ]; then
		touch "$install_dir"/domoticz.db
		chmod 644 "$install_dir"/domoticz.db
	fi
fi

chmod 750 "$install_dir"
chmod -R o-rwx "$install_dir"
chown -R "$app":"$app" "$install_dir"

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

[[ "$mosquitto" = 1 ]] && ynh_add_config --template="../conf/mqtt_nginx.conf" --destination="/etc/nginx/conf.d/"$mqtt_domain".d/mqtt_"$app".conf"

#Set Hook for nginx domain
cp -R ../sources/hooks/conf_regen/95-nginx_domoticz /usr/share/yunohost/hooks/conf_regen/

# Create a dedicated NGINX config
if [[ ! -f "/etc/nginx/conf.d/"$domain".d/api_"$app".conf" ]] 
then 
	ynh_print_warn --message="The nginx conf file will now be splitted between standard and api related path"
	ynh_print_warn --message="Report any manual changes on the new /etc/nginx/conf.d/$domain.d/api_$app.conf file for json command to keep working"
	ynh_add_config --template="api_nginx.conf" --destination="/etc/nginx/conf.d/"$domain".d/api_"$app".conf"
fi
ynh_add_nginx_config

#=================================================
# SPECIFIC UPGRADE
#=================================================
# SETUP SYSTEMD
#=================================================
ynh_script_progression --message="Upgrading systemd configuration..."

# Create a dedicated systemd config
ynh_add_systemd_config

#=================================================
# GENERIC FINALIZATION
#=================================================
# SETUP LOGROTATE
#=================================================
ynh_script_progression --message="Upgrading logrotate configuration..."

mkdir -p /var/log/"$app"
chown -R domoticz: /var/log/"$app"

# Use logrotate to manage app-specific logfile(s)
ynh_use_logrotate --logfile="/var/log/$app" --non-append

#=================================================
# SETUP FAIL2BAN
#=================================================
ynh_script_progression --message="Configuring Fail2Ban..." --weight=8

# Make sure a log file exists (mostly for CI tests)
log_file=/var/log/$app/$app.log
if [ ! -f "$log_file" ]; then
	touch "$log_file"
	chown $app: "$log_file"
fi

# Create a dedicated Fail2Ban config
ynh_add_fail2ban_config --logpath="$log_file" --failregex="^.*Error: Failed login attempt from <HOST>.*$" --max_retry=5
#not required in 2023.1 anymore
#ynh_print_info --message="If you wish for Fail2ban to work, set up your local address in Setup/Settings/System/Local Networks as per documentation"

#=================================================
# INTEGRATE SERVICE IN YUNOHOST
#=================================================
ynh_script_progression --message="Integrating service in YunoHost..."

yunohost service add "$app" --description="Domotique open sources" --log="/var/log/$app/$app.log"

#=================================================
# START SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Starting a systemd service..." --weight=3

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

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

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