#!/bin/bash
set -euo pipefail

SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
APP_ROOT_DIR="$(dirname "$SCRIPT_DIR")"
ROOT_DIR="$(dirname "$(dirname "$SCRIPT_DIR")")"
. "$APP_ROOT_DIR/config.sh"

function usage {
	cat >&2 <<DONE
Usage: $0 -p platforms
Options
 -p PLATFORMS        Platforms to build (m=Mac, w=Windows, l=Linux)
 -t                  add devtools
 -q                  quick build (skip compression and other optional steps for faster restarts during development)
DONE
	exit 1
}

DEVTOOLS=0
PLATFORM=""
quick_build=0
while getopts "tp:q" opt; do
	case $opt in
		t)
			DEVTOOLS=1
			;;
		p)
			for i in `seq 0 1 $((${#OPTARG}-1))`
			do
				case ${OPTARG:i:1} in
					m) PLATFORM="m";;
					w) PLATFORM="w";;
					l) PLATFORM="l";;
					*)
						echo "$0: Invalid platform option ${OPTARG:i:1}"
						usage
						;;
				esac
			done
			;;
		q)
			quick_build=1
			;;
		\?)
			echo "Invalid option: -$OPTARG" >&2
			exit 1
			;;
	esac
done

if [[ -z $PLATFORM ]]; then
	if [ "`uname`" = "Darwin" ]; then
		PLATFORM="m"
	elif [ "`uname`" = "Linux" ]; then
		PLATFORM="l"
		
		# If platform not given explicitly, skip 32-bit build if 64-bit system
		if [ "$(arch)" = "x86_64" ]; then
			export SKIP_32=1
		fi
	elif [ "`uname -o 2> /dev/null`" = "Cygwin" ]; then
		PLATFORM="w"
	fi
fi

CHANNEL="source"

PARAMS=""
if [ $DEVTOOLS -eq 1 ]; then
	PARAMS+=" -t"
fi
if [ $quick_build -eq 1 ]; then
	PARAMS+=" -q"
fi

hash=`git -C "$ROOT_DIR" rev-parse --short HEAD`

build_dir=`mktemp -d`
function cleanup {
	rm -rf $build_dir
}
trap cleanup EXIT

"$SCRIPT_DIR/prepare_build" -s "$ROOT_DIR/build" -o "$build_dir" -c $CHANNEL -m $hash
"$APP_ROOT_DIR/build.sh" -d "$build_dir" -p $PLATFORM -c $CHANNEL -s $PARAMS

echo Done