name: Build and Push prebuilt tools container

on:
  push:
    paths:
      - 'include/version.mk'
      - 'tools/**'
      - '.github/workflows/build-tools.yml'
      - '.github/workflows/push-containers.yml'
      - '.github/workflows/Dockerfile.tools'

permissions:
  contents: read

concurrency:
  group: ${{ github.workflow }}
  cancel-in-progress: true

jobs:
  build-linux-buildbot:
    name: Build tools with buildbot container
    if: ${{ github.repository_owner  == 'openwrt' }}
    uses: ./.github/workflows/build-tools.yml
    with:
      generate_prebuilt_artifacts: true

  push-tools-container:
    needs: build-linux-buildbot
    name: Push prebuilt tools container
    if: ${{ github.repository_owner  == 'openwrt' }}
    runs-on: ubuntu-latest

    permissions:
      contents: read
      packages: write

    steps:
      - name: Set lower case owner name
        env:
          OWNER: ${{ github.repository_owner }}
        run: |
          echo "OWNER_LC=${OWNER,,}" >> "$GITHUB_ENV"

      # Per branch tools container tag
      # By default stick to latest
      # For official test targetting openwrt stable branch
      # Get the branch or parse the tag and push dedicated tools containers
      # Any branch that will match this pattern openwrt-[0-9][0-9].[0-9][0-9]
      # will refresh the tools container with the matching tag.
      # (example branch openwrt-22.03 -> tools:openwrt-22.03)
      # (example branch openwrt-22.03-test -> tools:openwrt-22.03)
      - name: Determine tools container tag
        run: |
          CONTAINER_TAG=latest

          if [ ${{ github.ref_type }} == "branch" ]; then
            if echo "${{ github.ref_name }}" | grep -q -E 'openwrt-[0-9][0-9]\.[0-9][0-9]'; then
              CONTAINER_TAG="$(echo ${{ github.ref_name }} | sed 's/^\(openwrt-[0-9][0-9]\.[0-9][0-9]\).*/\1/')"
            fi
          elif [ ${{ github.ref_type }} == "tag" ]; then
            if echo "${{ github.ref_name }}" | grep -q -E 'v[0-9][0-9]\.[0-9][0-9]\..+'; then
              CONTAINER_TAG=openwrt-"$(echo ${{ github.ref_name }} | sed 's/v\([0-9][0-9]\.[0-9][0-9]\)\..\+/\1/')"
            fi
          fi

          echo "Tools container to push tools:$CONTAINER_TAG"
          echo "CONTAINER_TAG=$CONTAINER_TAG" >> "$GITHUB_ENV"

      - name: Checkout
        uses: actions/checkout@v3
        with:
          path: 'openwrt'

      - name: Download prebuilt tools from build job
        uses: actions/download-artifact@v3
        with:
          name: linux-buildbot-prebuilt-tools
          path: openwrt

      - name: Extract prebuild tools
        working-directory: openwrt
        run: tar -xf tools.tar

      - name: Login to GitHub Container Registry
        uses: docker/login-action@v2
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build and push
        uses: docker/build-push-action@v3
        with:
          context: openwrt
          push: true
          tags: ghcr.io/${{ env.OWNER_LC }}/tools:${{ env.CONTAINER_TAG }}
          file: openwrt/.github/workflows/Dockerfile.tools
