#!/bin/sh

dotnetDir="/opt/dotnet"

if [ -d "/etc/dns/config" ]
then
	dnsDir="/etc/dns"
else
    dnsDir="/opt/technitium/dns"
fi

echo ""
echo "================================="
echo "Technitium DNS Server Uninstaller"
echo "================================="
echo ""
echo "Uninstalling Technitium DNS Server..."

if [ -d $dnsDir ]
then
	if [ "$(ps --no-headers -o comm 1 | tr -d '\n')" = "systemd" ] 
	then
		sudo systemctl disable dns.service >/dev/null 2>&1
		sudo systemctl stop dns.service >/dev/null 2>&1
		rm /etc/systemd/system/dns.service >/dev/null 2>&1
		
		rm /etc/resolv.conf >/dev/null 2>&1
		echo "nameserver 8.8.8.8" >> /etc/resolv.conf
		echo "nameserver 1.1.1.1" >> /etc/resolv.conf
	fi

	rm -rf $dnsDir >/dev/null 2>&1

	if [ -d $dotnetDir ]
	then
		echo "Uninstalling .NET Runtime..."
		rm /usr/bin/dotnet >/dev/null 2>&1
		rm -rf $dotnetDir >/dev/null 2>&1
	fi
fi

echo ""
echo "Thank you for using Technitium DNS Server!"