#!/usr/bin/env bash

function build() {
	ROOT=$(dirname $0)
	NAME="edge-api"
	DIST=$ROOT/"../dist/${NAME}"
	OS=${1}
	ARCH=${2}
	TAG=${3}
	NODE_ARCHITECTS=("amd64" "386" "arm64" "mips64" "mips64le")

	if [ -z $OS ]; then
		echo "usage: build.sh OS ARCH"
		exit
	fi
	if [ -z $ARCH ]; then
		echo "usage: build.sh OS ARCH"
		exit
	fi
	if [ -z $TAG ]; then
		TAG="community"
	fi

	VERSION=$(lookup-version $ROOT/../internal/const/const.go)
	ZIP="${NAME}-${OS}-${ARCH}-${TAG}-v${VERSION}.zip"

	# build edge-node
	NodeVersion=$(lookup-version $ROOT"/../../EdgeNode/internal/const/const.go")
	echo "building edge-node v${NodeVersion} ..."
	EDGE_NODE_BUILD_SCRIPT=$ROOT"/../../EdgeNode/build/build.sh"
	if [ ! -f $EDGE_NODE_BUILD_SCRIPT ]; then
		echo "unable to find edge-node build script 'EdgeNode/build/build.sh'"
		exit
	fi
	cd $ROOT"/../../EdgeNode/build"
	echo "=============================="
	for arch in "${NODE_ARCHITECTS[@]}"; do
		if [ ! -f $ROOT"/../../EdgeNode/dist/edge-node-linux-${arch}-${TAG}-v${NodeVersion}.zip" ]; then
			./build.sh linux $arch $TAG
		else
			echo "use built node linux/$arch/v${NodeVersion}"
		fi
	done
	echo "=============================="
	cd -

	rm -f $ROOT/deploy/*.zip
	for arch in "${NODE_ARCHITECTS[@]}"; do
		cp $ROOT"/../../EdgeNode/dist/edge-node-linux-${arch}-${TAG}-v${NodeVersion}.zip" $ROOT/deploy/edge-node-linux-${arch}-v${NodeVersion}.zip
	done

	# build edge-dns
	if [ "$TAG" = "plus" ]; then
		DNS_ROOT=$ROOT"/../../EdgeDNS"
		if [ -d $DNS_ROOT  ]; then
			DNSNodeVersion=$(lookup-version $ROOT"/../../EdgeDNS/internal/const/const.go")
			echo "building edge-dns ${DNSNodeVersion} ..."
			EDGE_DNS_NODE_BUILD_SCRIPT=$ROOT"/../../EdgeDNS/build/build.sh"
			if [ ! -f $EDGE_DNS_NODE_BUILD_SCRIPT ]; then
				echo "unable to find edge-dns build script 'EdgeDNS/build/build.sh'"
				exit
			fi
			cd $ROOT"/../../EdgeDNS/build"
			echo "=============================="
			architects=("amd64")
			for arch in "${architects[@]}"; do
				./build.sh linux $arch $TAG
			done
			echo "=============================="
			cd -

			for arch in "${architects[@]}"; do
				cp $ROOT"/../../EdgeDNS/dist/edge-dns-linux-${arch}-v${DNSNodeVersion}.zip" $ROOT/deploy/edge-dns-linux-${arch}-v${DNSNodeVersion}.zip
			done
		fi
	fi

	# build sql
	if [ $TAG = "plus" ]; then
		echo "building sql ..."
		${ROOT}/sql.sh
	fi

	# copy files
	echo "copying ..."
	if [ ! -d $DIST ]; then
		mkdir $DIST
		mkdir $DIST/bin
		mkdir $DIST/configs
		mkdir $DIST/logs
	fi
	cp $ROOT/configs/api.template.yaml $DIST/configs/
	cp $ROOT/configs/db.template.yaml $DIST/configs/
	cp -R $ROOT/deploy $DIST/
	rm -f $dist/deploy/.gitignore
	cp -R $ROOT/installers $DIST/
	cp -R $ROOT/resources $DIST/
	rm -f $DIST/resources/ipdata/ip2region/global_region.csv
	rm -f $DIST/resources/ipdata/ip2region/ip.merge.txt

	# building edge installer
	echo "building node installer ..."
	architects=("amd64" "386" "arm64")
	for arch in "${architects[@]}"; do
		# TODO support arm, mips ...
		env GOOS=linux GOARCH=${arch} go build -trimpath -tags $TAG --ldflags="-s -w" -o $ROOT/installers/edge-installer-helper-linux-${arch} $ROOT/../cmd/installer-helper/main.go
	done

	# building edge dns installer
	echo "building dns node installer ..."
	architects=("amd64" "386" "arm64")
	for arch in "${architects[@]}"; do
		# TODO support arm, mips ...
		env GOOS=linux GOARCH=${arch} go build -trimpath -tags $TAG --ldflags="-s -w" -o $ROOT/installers/edge-installer-dns-helper-linux-${arch} $ROOT/../cmd/installer-dns-helper/main.go
	done

	# building api node
	env GOOS=$OS GOARCH=$ARCH go build -trimpath -tags $TAG --ldflags="-s -w" -o $DIST/bin/edge-api $ROOT/../cmd/edge-api/main.go

	# delete hidden files
	find $DIST -name ".DS_Store" -delete
	find $DIST -name ".gitignore" -delete

	echo "zip files"
	cd "${DIST}/../" || exit
	if [ -f "${ZIP}" ]; then
		rm -f "${ZIP}"
	fi
	zip -r -X -q "${ZIP}" ${NAME}/
	rm -rf ${NAME}
	cd - || exit

	echo "[done]"
}

function lookup-version() {
	FILE=$1
	VERSION_DATA=$(cat $FILE)
	re="Version[ ]+=[ ]+\"([0-9.]+)\""
	if [[ $VERSION_DATA =~ $re ]]; then
		VERSION=${BASH_REMATCH[1]}
		echo $VERSION
	else
		echo "could not match version"
		exit
	fi
}

build $1 $2 $3