name: Build Go Tarball

on:
  workflow_dispatch:

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repo
        uses: actions/checkout@v3
        with:
          repository: stacksmith/go
          token: ${{ secrets.CI_BOT_TOKEN }}

      - name: Install dependencies
        run: |
          apt-get update -y
          apt-get install -y curl tar build-essential 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}  # -> "1.25.1"
          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: ${{ env.LATEST }}
        run: |
          RESPONSE=$(curl -s -o /dev/stdout -w "%{http_code}" \
            -H "Authorization: token $GITEA_TOKEN" \
            "https://gitea.lulz.ltd/api/v1/packages/list?owner=stacksmith&repo=go")
          
          # Split JSON body and HTTP code
          BODY=${RESPONSE::-3}   # all but last 3 chars
          STATUS=${RESPONSE: -3} # last 3 chars
          
          if [ "$STATUS" -eq 404 ]; then
            echo "No packages exist yet. Continuing build..."
          else
            EXISTS=$(echo "$BODY" | jq -r ".[] | select(.name==\"golang\" and .version==\"${LATEST}-debian12\") | .name")
            if [ -n "$EXISTS" ]; then
              echo "Package golang-${LATEST}-debian12 already exists. Skipping build."
              exit 0
            fi
          fi

      - name: Download Go source
        run: |
          curl -LO https://go.dev/dl/go${LATEST}.src.tar.gz
          tar -xzf ${LATEST}.src.tar.gz

      - name: Build Go
        run: |
          cd go/src
          ./make.bash
          cd ../..
          mkdir -p golang-${LATEST}-linux-amd64-debian-12/files/go
          cp -r go/* golang-${LATEST}-linux-amd64-debian-12/files/go/

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

      - 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"