#!/bin/bash

#=================================================
# GENERIC STARTING
#=================================================
# IMPORT GENERIC HELPERS
#=================================================

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

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

app=$YNH_APP_INSTANCE_NAME

domain=$(ynh_app_setting_get $app domain)
port=$(ynh_app_setting_get $app port)

#=================================================
# STANDARD REMOVE
#=================================================
# REMOVE SERVICE FROM ADMIN PANEL
#=================================================

# Check if the service is declared in YunoHost
if yunohost service status | grep -q pihole-FTL
then
	ynh_print_info "Remove pihole-FTL service" >&2
	yunohost service remove pihole-FTL
fi

#=================================================
# STOP PIHOLE-FTL SERVICE
#=================================================

ynh_systemd_action --action=stop --service_name=pihole-FTL
ynh_exec_warn_less systemctl disable pihole-FTL
rm -f "/etc/init.d/pihole-FTL" "/usr/bin/pihole-FTL" "/var/run/pihole-FTL.pid" "/var/run/pihole-FTL.port"

#=================================================
# REMOVE DEPENDENCIES
#=================================================

# Remove metapackage and its dependencies
ynh_remove_app_dependencies

#=================================================
# REMOVE THE DIRECTORIES OF THE APP
#=================================================

# Remove storage directory
ynh_secure_remove "/etc/pihole"
# Remove app directory
ynh_secure_remove "/opt/pihole"
# Remove admin panel directory
ynh_secure_remove "/var/www/pihole"
# Remove local clone of the repository
ynh_secure_remove "/etc/.pihole"

#=================================================
# REMOVE NGINX CONFIGURATION
#=================================================

# Remove the dedicated nginx config
ynh_remove_nginx_config

#=================================================
# REMOVE PHP-FPM CONFIGURATION
#=================================================

# Remove the dedicated php-fpm config
ynh_remove_fpm_config

#=================================================
# CLOSE PORTS
#=================================================

if yunohost firewall list | grep -q "\- $port$"
then
	ynh_print_info "Close port $port" >&2
	ynh_exec_quiet yunohost firewall disallow TCP $port
fi

if yunohost firewall list | grep -q "\- 67$"
then
	ynh_print_info "Close port 67" >&2
	ynh_exec_quiet yunohost firewall disallow UDP 67
fi

#=================================================
# SPECIFIC REMOVE
#=================================================
# REMOVE CRON FILE
#=================================================

ynh_secure_remove "/etc/cron.d/pihole"

#=================================================
# REMOVE OTHER FILES
#=================================================

# Remove logs
ynh_secure_remove "/var/log/pihole.log"
ynh_secure_remove "/var/log/pihole-FTL.log"

# Remove main script
ynh_secure_remove "/usr/local/bin/pihole"
ynh_secure_remove "/etc/bash_completion.d/pihole"

# Remove sudoer file
ynh_secure_remove "/etc/sudoers.d/pihole"

#=================================================
# REMOVE DNSMASQ CONFIG
#=================================================

ynh_systemd_action --action=stop --service_name=dnsmasq
rm -f "/etc/dnsmasq.d/01-pihole.conf"
rm -f "/etc/dnsmasq.d/02-pihole-dhcp.conf"
rm -f "/etc/dnsmasq.d/03-pihole-wildcard.conf"
rm -f "/etc/dnsmasq.d/04-pihole-static-dhcp.conf"

ynh_replace_string "#pihole# " "" /etc/dnsmasq.conf

#=================================================
# CLEAN /etc/hosts
#=================================================

# Uncomment lines in /etc/hosts
sed -i "s/#Commented by pihole# //g" /etc/hosts

# And remove extra lines, added by PiHole
sed -i "/#Added by pihole#/d" /etc/hosts

#=================================================
# RESTART DNSMASQ
#=================================================

ynh_systemd_action --action=restart --service_name=dnsmasq

#=================================================
# REMOVE CONF_REGEN HOOK
#=================================================

ynh_secure_remove /usr/share/yunohost/hooks/conf_regen/50-dnsmasq_$app

#=================================================
# GENERIC FINALISATION
#=================================================
# REMOVE DEDICATED USER
#=================================================

ynh_system_user_delete $app