#!/usr/bin/env bash

# disable CGO for cross-compiling
export CGO_ENABLED=0

package_name=vctp
package=./
commit=$(git rev-parse HEAD)
buildtime=$(date +%Y-%m-%dT%T%z)
#Extract the version from yml
package_version=$(grep 'version:' "$package_name.yml" | awk '{print $2}' | tr -d '"' | sed 's/^v//')

host_os=$(uname -s | tr '[:upper:]' '[:lower:]')
host_arch=$(uname -m)
platforms=("linux/amd64")
if [[ "$host_os" == "darwin" && ( "$host_arch" == "x86_64" || "$host_arch" == "amd64" || "$host_arch" == "arm64" ) ]]; then
  platforms+=("darwin/amd64")
fi
#platforms=("linux/amd64")

echo Building::
echo  - Version $package_version
echo  - Commit $commit
echo  - Build Time $buildtime
mkdir -p build
for platform in "${platforms[@]}"
do
   platform_split=(${platform//\// })
   GOOS=${platform_split[0]}
   GOARCH=${platform_split[1]}
   output_name=$package_name'-'$GOOS'-'$GOARCH
   if [ $GOOS = "windows" ]; then
       output_name+='.exe'
   fi

   starttime=$(TZ=Australia/Sydney date +%Y-%m-%dT%T%z)
   echo "build commences at $starttime"
   env GOOS=$GOOS GOARCH=$GOARCH go build -trimpath -ldflags="-X main.version=$package_version -X main.commit=$commit -X main.buildTime=$buildtime" -o build/$output_name $package
   if [ $? -ne 0 ]; then
       echo 'An error has occurred! Aborting the script execution...'
       exit 1
   fi
   #gzip build/$output_name
   echo "build complete at $buildtime : $output_name"
   #sha256sum build/${output_name}.gz > build/${output_name}_checksum.txt
done

ls -lah build