# Continuous integration: lint, unit tests, manifest dry-run, gateway image
# smoke test and dependency review. Job names are the required branch-protection
# checks documented in docs/gitflow.md.
name: CI

on:
  pull_request:
  push:
    branches: [main]
  workflow_dispatch:

permissions:
  contents: read

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

jobs:
  lint:
    name: lint
    runs-on: ubuntu-latest
    timeout-minutes: 20
    steps:
      - name: Checkout
        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
      - name: Set up Python
        uses: actions/setup-python@6d4fd22b20465ccc0f7354476588e8df7c9ca0e0 # v7.1.0
        with:
          python-version: "3.12"
      - name: Install Python linters
        run: |
          set -euo pipefail
          python -m pip install --upgrade pip
          pip install "yamllint==1.38.0" "pyyaml==6.0.3"
      - name: Install actionlint
        env:
          ACTIONLINT_VERSION: v1.7.12
        run: |
          set -euo pipefail
          version="${ACTIONLINT_VERSION#v}"
          curl -fsSL -o /tmp/actionlint.tar.gz             "https://github.com/rhysd/actionlint/releases/download/$ACTIONLINT_VERSION/actionlint_${version}_linux_amd64.tar.gz"
          tar -xzf /tmp/actionlint.tar.gz -C /tmp actionlint
          install -m 0755 /tmp/actionlint /usr/local/bin/actionlint
          actionlint -version
      - name: Install hadolint
        env:
          HADOLINT_VERSION: v2.12.0
        run: |
          set -euo pipefail
          curl -fsSL -o /tmp/hadolint             "https://github.com/hadolint/hadolint/releases/download/$HADOLINT_VERSION/hadolint-Linux-x86_64"
          install -m 0755 /tmp/hadolint /usr/local/bin/hadolint
          hadolint --version
      - name: Repository checks
        run: |
          set -euo pipefail
          ./scripts/check-versions.sh
          ./scripts/check-examples.sh
          python scripts/check-manifests.py
      - name: Shellcheck
        run: shellcheck -x build.sh scripts/*.sh examples/*/scripts/*.sh
      - name: Actionlint
        run: actionlint -color
      - name: Yamllint
        run: yamllint .
      - name: Hadolint
        run: |
          set -euo pipefail
          hadolint Dockerfile
          hadolint examples/dsh-agents-as-a-service/gateway/Dockerfile
      - name: Documentation links
        uses: lycheeverse/lychee-action@e7477775783ea5526144ba13e8db5eec57747ce8 # v2
        with:
          args: >-
            --offline --no-progress --verbose
            ./README.md ./CONTRIBUTING.md ./SECURITY.md ./AGENTS.md ./docs ./examples

  python:
    name: python
    runs-on: ubuntu-latest
    timeout-minutes: 20
    defaults:
      run:
        working-directory: examples/dsh-agents-as-a-service/gateway
    steps:
      - name: Checkout
        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
      - name: Set up Python
        uses: actions/setup-python@6d4fd22b20465ccc0f7354476588e8df7c9ca0e0 # v7.1.0
        with:
          python-version: "3.12"
          cache: pip
          cache-dependency-path: |
            examples/dsh-agents-as-a-service/gateway/requirements.txt
            examples/dsh-agents-as-a-service/gateway/requirements-dev.txt
      - name: Install dependencies
        run: |
          set -euo pipefail
          python -m pip install --upgrade pip
          pip install -r requirements.txt -r requirements-dev.txt
      - name: Lint
        run: |
          set -euo pipefail
          python -m ruff check .
          python -m ruff format --check .
      - name: Unit tests with coverage
        run: >-
          python -m pytest -q
          --cov=. --cov-report=xml:coverage.xml --cov-report=term
          --junitxml=junit.xml
      - name: Coverage summary
        run: |
          set -euo pipefail
          {
            echo "### Gateway test coverage"
            python -m coverage report
          } >> "$GITHUB_STEP_SUMMARY"
      - name: Upload test artefacts
        if: always()
        uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2
        with:
          name: gateway-test-results
          path: |
            examples/dsh-agents-as-a-service/gateway/junit.xml
            examples/dsh-agents-as-a-service/gateway/coverage.xml
          if-no-files-found: warn
          retention-days: 7

  manifests:
    name: manifests
    runs-on: ubuntu-latest
    timeout-minutes: 25
    steps:
      - name: Checkout
        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
      - name: Create kind cluster
        uses: helm/kind-action@1544676c07bb3570fcb70166beaa07c4528fd4aa # v1.15.1
        with:
          version: v0.33.0
          cluster_name: dsh-ci
      - name: Read versions.env
        run: |
          set -euo pipefail
          while IFS= read -r line; do
            case "$line" in ''|'#'*) continue ;; esac
            echo "$line" >> "$GITHUB_ENV"
          done < versions.env
      - name: Install agent-sandbox and Gateway API CRDs
        run: |
          set -euo pipefail
          kubectl apply -f "https://github.com/kubernetes-sigs/agent-sandbox/releases/download/$AGENT_SANDBOX_VERSION/sandbox-with-extensions.yaml"
          kubectl wait --for=condition=Established crd/sandboxtemplates.extensions.agents.x-k8s.io --timeout=180s
          kubectl wait --for=condition=Established crd/sandboxwarmpools.extensions.agents.x-k8s.io --timeout=180s
          kubectl wait --for=condition=Established crd/sandboxclaims.extensions.agents.x-k8s.io --timeout=180s
          kubectl wait --for=condition=Established crd/sandboxes.agents.x-k8s.io --timeout=180s
          kubectl apply -f "https://github.com/kubernetes-sigs/gateway-api/releases/download/$GATEWAY_API_VERSION/standard-install.yaml"
          kubectl wait --for=condition=Established crd/gateways.gateway.networking.k8s.io --timeout=180s
          kubectl wait --for=condition=Established crd/httproutes.gateway.networking.k8s.io --timeout=180s
      - name: Set up Python
        uses: actions/setup-python@6d4fd22b20465ccc0f7354476588e8df7c9ca0e0 # v7.1.0
        with:
          python-version: "3.12"
      - name: Install check dependencies
        run: pip install "pyyaml==6.0.3"
      - name: Validate manifest shape
        run: python scripts/check-manifests.py
      - name: Validate manifests (server dry-run)
        run: |
          set -euo pipefail
          kubectl create namespace dsh-demo
          shopt -s globstar nullglob
          count=0
          for file in examples/*/manifests/**/*.yaml; do
            case "$file" in *.yaml.example) continue ;; esac
            echo "== $file =="
            kubectl apply --dry-run=server -f "$file"
            count=$((count + 1))
          done
          if [ "$count" -eq 0 ]; then
            echo "no manifests were validated" >&2
            exit 1
          fi
          echo "validated $count manifests"

  gateway-image:
    name: gateway-image
    runs-on: ubuntu-latest
    timeout-minutes: 20
    steps:
      - name: Checkout
        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
      - name: Build gateway image
        run: docker build -t dsh-aaas-gateway:ci examples/dsh-agents-as-a-service/gateway/
      - name: Smoke-test /healthz without a cluster
        run: |
          set -euo pipefail
          cat > /tmp/kubeconfig <<'EOF'
          apiVersion: v1
          kind: Config
          clusters:
            - name: dummy
              cluster:
                server: https://127.0.0.1:6443
                insecure-skip-tls-verify: true
          contexts:
            - name: dummy
              context:
                cluster: dummy
                user: dummy
          users:
            - name: dummy
              user: {}
          current-context: dummy
          EOF
          docker run -d --name gateway-smoke \
            -p 18080:8080 \
            -e NAMESPACE=dsh-demo \
            -e POOL=dsh-pool \
            -e KUBECONFIG=/tmp/kubeconfig \
            -v /tmp/kubeconfig:/tmp/kubeconfig:ro \
            dsh-aaas-gateway:ci
          trap 'docker logs gateway-smoke || true; docker rm -f gateway-smoke || true' EXIT
          code=""
          for _ in $(seq 1 30); do
            code=$(curl -s -o /dev/null -w '%{http_code}' http://localhost:18080/healthz || true)
            [ "$code" = "200" ] && break
            sleep 1
          done
          if [ "$code" != "200" ]; then
            echo "gateway /healthz returned '$code' instead of 200" >&2
            exit 1
          fi
          echo "gateway image healthy: GET /healthz -> 200"

  dependency-review:
    name: dependency-review
    if: github.event_name == 'pull_request'
    runs-on: ubuntu-latest
    timeout-minutes: 10
    permissions:
      contents: read
      pull-requests: write
    steps:
      - name: Checkout
        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
      - name: Dependency review
        uses: actions/dependency-review-action@a1d282b36b6f3519aa1f3fc636f609c47dddb294 # v4