#!/usr/bin/env bash
set -euo pipefail

version="${1:-0.1.0}"
project_root="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
output_dir="$project_root/dist/npm"
stage_root="$(mktemp -d "${TMPDIR:-/tmp}/dumbforge-npm.XXXXXX")"
mkdir -p "$output_dir"

cleanup() {
  rm -rf "$stage_root"
}
trap cleanup EXIT

build_target() {
  local goos="$1"
  local goarch="$2"
  local npm_platform="$3"
  local suffix="$4"
  local package_source="$project_root/npm/platforms/$npm_platform"
  local package_dir="$stage_root/$npm_platform"
  mkdir -p "$package_dir/bin"
  cp "$package_source/package.json" "$package_dir/package.json"
  cp "$project_root/LICENSE" "$package_dir/LICENSE"
  cp "$project_root/THIRD_PARTY_NOTICES.md" "$package_dir/THIRD_PARTY_NOTICES.md"
  cp -R "$project_root/THIRD_PARTY_LICENSES" "$package_dir/THIRD_PARTY_LICENSES"
  CGO_ENABLED=0 GOOS="$goos" GOARCH="$goarch" go build \
    -trimpath \
    -ldflags "-s -w -X main.version=$version" \
    -o "$package_dir/bin/dumbforge$suffix" \
    "$project_root/cmd/dumbforge"
}

build_target darwin arm64 darwin-arm64 ""
build_target darwin amd64 darwin-x64 ""
build_target linux arm64 linux-arm64 ""
build_target linux amd64 linux-x64 ""
build_target windows arm64 win32-arm64 ".exe"
build_target windows amd64 win32-x64 ".exe"

for package_dir in "$stage_root"/*; do
  npm pack "$package_dir" --pack-destination "$output_dir"
done
npm pack "$project_root" --pack-destination "$output_dir"

echo "npm packages written to $output_dir"