name: Build Go Tarball

on:
  workflow_dispatch:

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repo
        uses: actions/checkout@v3

      - name: Install dependencies
        run: |
          sudo apt-get update -y
          sudo apt-get install -y curl tar jq

      - name: Determine latest Go release
        id: get_go
        run: |
          LATEST=$(curl -s https://go.dev/dl/?mode=json | jq -r '.[0].version')
          LATEST_NUM=${LATEST#go}  # strip leading "go"
          echo "LATEST=$LATEST_NUM" >> $GITHUB_ENV
          echo "Latest Go version: $LATEST_NUM"

      - name: Check if package already exists
        env:
          GITEA_TOKEN: ${{ secrets.CI_BOT_TOKEN }}
          LATEST: ${{ env.LATEST }}
        run: |
          EXISTS=$(curl -s -H "Authorization: token $GITEA_TOKEN" \
            "https://gitea.lulz.ltd/api/packages/list?owner=stacksmith&repo=go" || echo "[]" \
            | jq -r ".[] | select(.name==\"golang\" and .version==\"${LATEST}-debian12\") | .name")
          if [ -n "$EXISTS" ]; then
            echo "Package golang-${LATEST}-debian12 already exists. Skipping build."
            exit 0
          fi

      - name: Download official Go tarball
        env:
          LATEST: ${{ env.LATEST }}
        run: |
          echo "Downloading: https://go.dev/dl/go${LATEST}.linux-amd64.tar.gz"
          curl -LO https://go.dev/dl/go${LATEST}.linux-amd64.tar.gz
          mkdir -p golang-${LATEST}-linux-amd64-debian-12/files
          tar -xzf go${LATEST}.linux-amd64.tar.gz -C golang-${LATEST}-linux-amd64-debian-12/files
          ls -R golang-${LATEST}-linux-amd64-debian-12/files

      - name: Package tarball
        env:
          LATEST: ${{ env.LATEST }}
        run: |
          tar -czf golang-${LATEST}-linux-amd64-debian-12.tar.gz golang-${LATEST}-linux-amd64-debian-12
          ls -lh golang-${LATEST}-linux-amd64-debian-12.tar.gz

      - name: Upload to Gitea Packages
        env:
          GITEA_TOKEN: ${{ secrets.CI_BOT_TOKEN }}
          LATEST: ${{ env.LATEST }}
        run: |
          curl -X POST \
               -H "Authorization: token $GITEA_TOKEN" \
               -F "package=@golang-${LATEST}-linux-amd64-debian-12.tar.gz" \
               "https://gitea.lulz.ltd/api/packages/upload?owner=stacksmith&repo=go&package_name=golang&package_version=${LATEST}-debian12"