#!/bin/bash
set -eux

version=$1
basePath="$GOPATH/src/github.com/dnote/dnote"
projectDir="$GOPATH/src/github.com/dnote/dnote"
basedir="$GOPATH/src/github.com/dnote/dnote/pkg/server"
outputDir="$projectDir/build/server"

command_exists () {
  command -v "$1" >/dev/null 2>&1;
}

if ! command_exists shasum; then
  echo "please install shasum"
  exit 1
fi
if [ $# -eq 0 ]; then
  echo "no version specified."
  exit 1
fi
if [[ $1 == v* ]]; then
  echo "do not prefix version with v"
  exit 1
fi

build() {
  platform=$1
  arch=$2

  destDir="$outputDir/$platform-$arch"
  mkdir -p "$destDir"

  # build binary
  packr2

  GOOS="$platform" \
  GOARCH="$arch" go build \
    -o "$destDir/dnote-server" \
    -ldflags "-X main.versionTag=$version" \
    "$basePath"/pkg/server/*.go

  packr2 clean

  # build tarball
  tarballName="dnote_server_${version}_${platform}_${arch}.tar.gz"
  tarballPath="$outputDir/$tarballName"

  cp "$projectDir/licenses/AGPLv3.txt" "$destDir"
  cp "$basedir/README.md" "$destDir"
  tar -C "$destDir" -zcvf "$tarballPath" "."
  rm -rf "$destDir"

  # calculate checksum
  pushd "$outputDir"
  shasum -a 256 "$tarballName" >> "$outputDir/dnote_${version}_checksums.txt"
  popd
}

build linux amd64