#!/bin/bash
#
# This is a helper script for travis-ci builds and our own FreeBSD test machine.
# It is not meant to be used by end-users
#

function fail()
{
	echo "select-config failed: $*"
	exit 1
}

function build_ssl {
	DIR="$2"
	URL="$1/$2.tar.gz"
	savewd="$PWD"
	cd ~
	wget "$URL" || exit 1
	tar xzf $DIR.tar.gz
	cd "$DIR"
	(./configure --prefix=$HOME/ssl 1>/dev/null 2>&1 || ./config --prefix=$HOME/ssl -fPIC 1>/dev/null 2>&1 ) || fail "build_ssl: configure/config failed"
	(make -j2 1>/dev/null 2>&1 && make install 1>/dev/null 2>&1) || fail "build_ssl: make failed"
	cd "$savewd"
	echo "SSLDIR=$HOME/ssl" >>config.settings
}

if [ ! -d extras ]; then
	echo "This tool is supposed to be run from the source root, so ~/unrealircd-5.0.x or similar"
	exit 1
fi

set -x

# Take default settings as a starter..
cp extras/build-tests/nix/configs/default ./config.settings

# Libtool is required for the other options..
# Also for our FreeBSD machine we have to uninstall some stuff since a clean
# environment is not guaranteed...
if [ "$OSTYPE" = "linux-gnu" ]; then
	sudo apt-get -qq update
	sudo apt-get install libtool -qq
elif [[ "$OSTYPE" == "freebsd"* ]]; then
	sudo pkg install -y libtool
	sudo pkg remove -y c-ares
elif [[ "$OSTYPE" == "darwin"* ]]; then
	brew update
	brew install openssl
else
	echo "OS not correctly detected ($OSTYPE). Aborting."
	exit 1
fi

echo "*****************************************************************"
echo "SELECTED BUILD OPTIONS: $*"
echo "*****************************************************************"

while [ "$1" ]
do
	echo "Processing option $1..."
	if [ "$1" = "system-cares" ]; then
		if [ "$OSTYPE" = "linux-gnu" ]; then
			sudo apt-get install libc-ares-dev -qq
		elif [[ "$OSTYPE" == "freebsd"* ]]; then
			sudo pkg install -y c-ares
		elif [[ "$OSTYPE" == "darwin"* ]]; then
			brew install c-ares
		fi
	elif [ "$1" = "system-curl" ]; then
		echo 'REMOTEINC=1' >>config.settings
		if [ "$OSTYPE" = "linux-gnu" ]; then
			sudo apt-get install libcurl4-openssl-dev -qq
			echo 'CURLDIR=/usr' >>config.settings
		elif [[ "$OSTYPE" == "freebsd"* ]]; then
			sudo pkg install -y curl
			echo 'CURLDIR=/usr/local' >>config.settings
		elif [[ "$OSTYPE" == "darwin"* ]]; then
			brew install c-ares curl
			echo 'CURLDIR=/usr/local/opt/curl' >>config.settings
		fi
	elif [ "$1" = "local-curl" ]; then
		if [ "$OSTYPE" = "linux-gnu" ]; then
			sudo apt-get remove libcurl4-openssl-dev libcurl3-gnutls libcurl3 -qq
		elif [[ "$OSTYPE" == "freebsd"* ]]; then
			sudo pkg remove -y curl #NOTE: unfortunately this also removes 'git' :D
		elif [[ "$OSTYPE" == "darwin"* ]]; then
			echo "No need to remove curl since it's not installed. Or at least I hope so..."
		fi
		echo 'REMOTEINC=1' >>config.settings
		echo "CURLDIR=`pwd`/extras/curl" >>config.settings
	elif [ "$1" = "libressl-27" ]; then
		build_ssl https://ftp.openbsd.org/pub/OpenBSD/LibreSSL libressl-2.7.5
	elif [ "$1" = "libressl-28" ]; then
		build_ssl https://ftp.openbsd.org/pub/OpenBSD/LibreSSL libressl-2.8.3
	elif [ "$1" = "libressl-29" ]; then
		build_ssl https://ftp.openbsd.org/pub/OpenBSD/LibreSSL libressl-2.9.0
	elif [ "$1" = "openssl-102" ]; then
		build_ssl https://www.openssl.org/source openssl-1.0.2q
	elif [ "$1" = "openssl-110" ]; then
		build_ssl https://www.openssl.org/source openssl-1.1.0j
	elif [ "$1" = "openssl-111" ]; then
		build_ssl https://www.openssl.org/source openssl-1.1.1a
	else
		echo "Unknown option $1"
		exit 1
	fi
	shift
done

if [[ "$OSTYPE" == "darwin"* ]]; then
	echo "NOTE: Not building with -Werror for now on macOS..."
else
	echo 'EXTRAPARA="--enable-werror"' >>config.settings
fi
