#!/bin/bash

function errorcheck(){
    if [ "$?" -gt 0 ]; then
		echo "Error during $1"
		exit
    else
		echo "$1 successful"
    fi
}

function incusage(){
	echo "Incorrect usage; use --help for more info."
	exit
}

if [ "$1" = "--install" ]; then
	if [ $# -lt 2 ]; then
		incusage
	fi
	svn co https://vcmi.svn.sourceforge.net/svnroot/vcmi/branches/programmingChallenge/ vcmi
	errorcheck "fetching sources"
	cd vcmi
	if [ "$2" = "lean" ]; then
		mv "Makefile without client.am" Makefile.am
		mv "configure without client.ac" configure.ac
		rm client/Makefile.am
		echo "SUBDIRS = StupidAI" > AI/Makefile.am
		rm -rf AI/EmptyAI
		rm -rf AI/GeniusAI
		find . -name ".svn" -exec rm -rf {} \;
	elif [ "$2" = "full" ]; then
		mv "Makefile with client.am" Makefile.am
		mv "configure with client.ac" configure.ac
	else
		incusage
	fi
	autoreconf -i
	errorcheck "autoreconf -i"
	cd ..
	vcmi/configure --datadir=`pwd` --bindir=`pwd`vcmi --libdir=`pwd`
	errorcheck "configure"
	make
	errorcheck "make"
	unzip vcmi/vcmipack.zip -d vcmi
	errorcheck "pack unzip"
	ln -s "vcmi/b1.json"
	errorcheck "b1.json symlink"
	ln -s ../../AI/StupidAI/.libs/libStupidAI.so -t vcmi/AI
	errorcheck "StupidAI symlink"
	ln -s "Odpalarka/odpalarka"
	errorcheck "Odpalarka symlink"
	ln -s "VCMI_BattleAiHost/vcmirunner"
	errorcheck "runner symlink"
	ln -s "server/vcmiserver"
	errorcheck "server symlink"
elif [ "$1" = "--clean" ]; then
	find . -name "*" -exec bash -c "if [[ {} != './vcmiinstall.sh' ]] && [[ {} != './vcmipack.zip' ]] && [[ {} != '.' ]] && [[ {} != '..' ]]; then rm -rf {} ; fi" \;
elif [ "$1" = "--help" ]; then
	echo "VCMI programming challenge installation script"
	echo
	echo "Available commands: "
	echo "--clean			removes all created files except this script."
	echo "--help			displays this info."
	echo "--install full	downloads and compiles full VCMI with graphical client; requires ffmpeg."
	echo "--install lean	downloads and compiles most of VCMI (without graphical client)."
else
	incusage
fi