name: Generate

on:
  workflow_dispatch:
    inputs:
      kubernetesBranch:
        type: string
        required: true
        description: 'The remote kubernetes release branch to fetch openapi spec. .e.g. "release-1.23"'
      dry_run:
        type: boolean
        required: true
        default: false
        description: Dry run, will not send a PR
      skip_patches:
        type: boolean
        required: true
        default: false
        description: If true, skip patching code after generation

permissions:
  contents: read
  pull-requests: write

jobs:
  generate:
    permissions:
      contents: write  # for Git to git push
      pull-requests: write  # for repo-sync/pull-request to create pull requests
    runs-on: ubuntu-latest
    steps:
      - name: Checkout Java
        uses: actions/checkout@v4
      - name: Setup Java
        uses: actions/setup-java@v4
        with:
          distribution: 'temurin'
          java-version: 11
      - name: Checkout Gen
        uses: actions/checkout@v4
        with:
          path: gen
          repository: kubernetes-client/gen
          token: ${{ secrets.PAT_TOKEN }}
      - name: Generate Branch Name
        run: |
          SUFFIX=$(openssl rand -hex 4)
          echo "BRANCH=automated-generate-$SUFFIX" >> $GITHUB_ENV
      - name: Get Project Version
        run: |
          echo "PROJECT_VERSION=$(mvn -q \
                      -Dexec.executable="echo" \
                      -Dexec.args='${project.version}' \
                      -Dorg.slf4j.simpleLogger.log.org.apache.maven.cli.transfer.Slf4jMavenTransferListener=warn \
                      --non-recursive \
                      org.codehaus.mojo:exec-maven-plugin:1.6.0:exec)" >> $GITHUB_ENV
      - name: Generate Openapi
        run: |
          pushd gen/openapi
          cat <<"EOF"> settings
          # Kubernetes branch to get the OpenAPI spec from.
          export KUBERNETES_BRANCH="${{ github.event.inputs.kubernetesBranch }}"

          # client version for packaging and releasing. It can
          # be different than SPEC_VERSION.
          export CLIENT_VERSION=${{ env.PROJECT_VERSION }}

          # Name of the release package
          export PACKAGE_NAME="io.kubernetes.client.openapi"
          EOF

          USE_SINGLE_PARAMETER=true bash java.sh ../../kubernetes/ settings
          popd
          rm -rf gen
          git config user.email "k8s-publishing-bot@users.noreply.github.com"
          git config user.name "Kubernetes Publisher"
          git checkout -b "$BRANCH"
          git add .
          git commit -s -m 'Automated openapi generation from ${{ github.event.inputs.kubernetesBranch }}'
      - name: Apply Manual Diffs
        if: ${{ github.event.inputs.skip_patches != 'true' }}
        run: |
          ls scripts/patches/*.diff | xargs git apply
          git add .
          git commit -s -m 'Applied patches under scripts/patches/*.diff'
      - name: Generate Fluent
        run: |
          # Only install the generated openapi module because the higher modules' compile
          # may fail due to api-changes.
          mvn -Dorg.slf4j.simpleLogger.log.org.apache.maven.cli.transfer.Slf4jMavenTransferListener=warn \
              -Dmaven.test.skip=true \
              -Pfluent-gen \
              -pl kubernetes -am clean install
          pushd fluent-gen
          bash -x generate.sh
          popd
      - name: Formatter
        run: |
          mvn spotless:apply
      - name: Commit and push
        if: ${{ github.event.inputs.dry_run != 'true' }}
        run: |
          # Commit and push
          git add .
          git commit -s -m 'Format and fluent-gen from ${{ github.event.inputs.kubernetesBranch }}'
          git push origin "$BRANCH"
      - name: Pull Request
        if: ${{ github.event.inputs.dry_run != 'true' }}
        uses: repo-sync/pull-request@v2
        with:
          source_branch: ${{ env.BRANCH }}
          destination_branch: ${{ github.ref_name }}
          github_token: ${{ secrets.GITHUB_TOKEN }}
          pr_title: "Automated Generate from openapi ${{ github.event.inputs.kubernetesBranch }}"