name: pr-adapters

# Stage 1, the adapter half: the lanes a pull request must clear that `ci-quality-gates.yml` cannot
# reach.
#
# It replaces web-pr.yml, websocket-pr.yml, httpclient-contract.yml and jpa-pr.yml, which were four
# files split by module rather than by stage. Splitting by module is what made the duplication
# invisible: each file opened with its own "unit and architecture" job running
# `:<leaf>:test verifyCleanArchitectureDependencies`, and all four of those were already inside the
# root `check` that ci-quality-gates.yml runs on every pull request with no path filter. Four jobs,
# four runners, four Gradle configurations, zero additional coverage. They are gone; what is left
# here is only what `check` does not run.
#
# What `check` does not run, and therefore what this file is for:
#   * lanes with their own source set — a second servlet container, a real Nginx, Reactor Netty;
#   * lanes selected by a tag that `test` excludes — the cross-stack parity recording comparison;
#   * lanes parameterised per run — one PostgreSQL major per job, one HTTP transport per job.
# Each of those genuinely cannot run inside `check`, which is the test for whether a job belongs
# here at all.
#
# Path filtering is per job rather than per workflow. The four files it replaces each carried an
# `on.pull_request.paths` list, so the whole file was skipped or run as a unit; a change touching
# web and JPA started two workflows and a change touching neither still started none. Here one
# `changes` job computes the answer once from the pull request's own diff and every lane reads it.
# The filter is a plain `git diff` rather than a filter action: this repository pins every action by
# commit SHA and adding a third-party action to compute a boolean is a supply-chain decision, not a
# convenience.

on:
  pull_request:
  workflow_dispatch:

permissions:
  contents: read

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

jobs:
  # One diff, read once. `workflow_dispatch` answers "everything changed", because a manual run is
  # somebody asking for the lanes and there is no base ref to compare against.
  changes:
    runs-on: ubuntu-latest
    timeout-minutes: 10
    outputs:
      web: ${{ steps.filter.outputs.web }}
      websocket: ${{ steps.filter.outputs.websocket }}
      httpclient: ${{ steps.filter.outputs.httpclient }}
      jpa: ${{ steps.filter.outputs.jpa }}
    steps:
      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # actions/checkout@v4.2.2
        with:
          # Both endpoints of the pull request's diff have to be present locally; the default
          # shallow fetch has neither the base commit nor the merge base.
          fetch-depth: 0
      - name: Decide which adapter lanes this diff can affect
        id: filter
        env:
          BASE_SHA: ${{ github.event.pull_request.base.sha }}
          HEAD_SHA: ${{ github.event.pull_request.head.sha }}
        run: |
          set -euo pipefail
          if [ "${GITHUB_EVENT_NAME}" != 'pull_request' ]; then
            changed='ALL'
          else
            if [ -z "${BASE_SHA}" ] || [ -z "${HEAD_SHA}" ]; then
              echo "::error::pull request diff endpoints are missing; refusing to report no lanes"
              exit 1
            fi
            changed="$(git diff --name-only "${BASE_SHA}" "${HEAD_SHA}")"
          fi
          # Fail closed rather than reporting "nothing changed": an empty diff on a pull request
          # means the comparison did not work, and a filter that answers false on a broken
          # comparison silently turns every lane below off.
          if [ "${changed}" != 'ALL' ] && [ -z "${changed}" ]; then
            echo "::error::the pull request diff is empty; the comparison did not run"
            exit 1
          fi
          printf 'changed files:\n%s\n' "${changed}"
          emit() {
            lane="$1"
            shift
            if [ "${changed}" = 'ALL' ]; then
              printf '%s=true\n' "${lane}" >> "${GITHUB_OUTPUT}"
              printf 'lane %s: true (manual run)\n' "${lane}"
              return 0
            fi
            for pattern in "$@"; do
              if printf '%s\n' "${changed}" | grep -qE -- "${pattern}"; then
                printf '%s=true\n' "${lane}" >> "${GITHUB_OUTPUT}"
                printf 'lane %s: true (%s)\n' "${lane}" "${pattern}"
                return 0
              fi
            done
            printf '%s=false\n' "${lane}" >> "${GITHUB_OUTPUT}"
            printf 'lane %s: false\n' "${lane}"
          }
          # This workflow and the composite action every lane below uses are in every lane's path
          # set: a change to either changes what the lanes do, and a gate that does not re-run when
          # its own definition changes is a gate nobody has seen run in its current form.
          common='^\.github/workflows/pr-adapters\.yml$|^\.github/actions/'
          emit web \
            '^src/adapter/inbound/web/' \
            '^src/application-core/src/.*/operation/' \
            '^src/application-core/src/.*/idempotency/' \
            '^src/adapter/outbound/persistence-jpa/src/.*/operation/' \
            '^docs/web/' \
            "${common}"
          emit websocket \
            '^src/adapter/inbound/websocket/' \
            '^docs/websocket/' \
            "${common}"
          emit httpclient \
            '^src/adapter/outbound/httpclient/' \
            '^src/app-bootstrap/src/.*/httpclient/' \
            '^docs/httpclient/' \
            '^scripts/verify-httpclient-docs\.py$' \
            "${common}"
          emit jpa \
            '^src/adapter/outbound/persistence-jpa/' \
            '^src/app-bootstrap/src/.*/jpa/' \
            '^src/config/architecture/modules\.json$' \
            '^docs/jpa/' \
            '^docs/adr/ADR-JPA-' \
            '^infra/jpa/' \
            "${common}"

  # The parity gate depends on all three recording lanes and fails when one is missing, so it runs
  # them itself rather than trusting a previous job to have left the recordings behind. Its tag is
  # excluded from `test`, which is why `check` cannot cover it.
  web-cross-stack-parity:
    needs: changes
    if: needs.changes.outputs.web == 'true'
    runs-on: ubuntu-latest
    timeout-minutes: 40
    steps:
      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # actions/checkout@v4.2.2
      - uses: ./.github/actions/setup-gradle-java
      - name: Compare the wire contract across Tomcat, Jetty and Reactor Netty
        working-directory: src
        run: >-
          ./gradlew
          :adapter:inbound:web:webCrossStackParityTest
          --no-daemon
          --stacktrace
      - name: Publish the parity recordings
        if: always()
        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # actions/upload-artifact@v4.6.2
        with:
          name: web-contract-parity
          path: src/adapter/inbound/web/build/web-contract-parity/
          if-no-files-found: error

  # Docker-gated, and the lane fails rather than skipping when the runtime is missing. A proxy
  # contract that quietly passes without a proxy has been certifying nothing since whenever the
  # container runtime last broke.
  web-nginx-proxy-contract:
    needs: changes
    if: needs.changes.outputs.web == 'true'
    runs-on: ubuntu-latest
    timeout-minutes: 30
    steps:
      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # actions/checkout@v4.2.2
      - uses: ./.github/actions/setup-gradle-java
      - name: Run the proxy, prefix and spoofing contract behind a real Nginx
        working-directory: src
        run: >-
          ./gradlew
          :adapter:inbound:web:webNginxProxyTest
          --no-daemon
          --stacktrace

  websocket-container-matrix:
    needs: changes
    if: needs.changes.outputs.websocket == 'true'
    runs-on: ubuntu-latest
    timeout-minutes: 30
    steps:
      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # actions/checkout@v4.2.2
      - uses: ./.github/actions/setup-gradle-java
      - name: Run the runtime contract on the second servlet container
        working-directory: src
        run: >-
          ./gradlew
          :adapter:inbound:websocket:websocketJettyTest
          --no-daemon
          --stacktrace

  # Docker-gated, and the lane fails rather than skipping. Upgrade handling is the single most
  # common WebSocket deployment failure and it is invisible from either side alone.
  websocket-nginx-contract:
    needs: changes
    if: needs.changes.outputs.websocket == 'true'
    runs-on: ubuntu-latest
    timeout-minutes: 30
    steps:
      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # actions/checkout@v4.2.2
      - uses: ./.github/actions/setup-gradle-java
      - name: Run the upgrade and forwarded-header contract behind a real Nginx
        working-directory: src
        run: >-
          ./gradlew
          :adapter:inbound:websocket:websocketNginxTest
          --no-daemon
          --stacktrace

  # One transport per job, so a transport that stops satisfying the shared contract fails on its own
  # row instead of disappearing into an aggregate run. `check` runs this lane once, unparameterised.
  httpclient-stable-contract:
    needs: changes
    if: needs.changes.outputs.httpclient == 'true'
    runs-on: ubuntu-latest
    timeout-minutes: 30
    strategy:
      fail-fast: false
      matrix:
        transport: [apache, jdk, reactor]
    steps:
      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # actions/checkout@v4.2.2
      - uses: ./.github/actions/setup-gradle-java
      - name: Certify one transport against the shared contract
        working-directory: src
        run: >-
          ./gradlew
          :adapter:outbound:httpclient:httpClientStableContractTest
          -Phttpclient.contract.transports=${{ matrix.transport }}
          --no-daemon
          --stacktrace

  # Only the Spring 7.0 lane. httpClientSecurityTest, httpClientBlockHoundTest and
  # spring62ApiSurfaceScan used to run here too; all three are `dependsOn` of this leaf's `check`
  # (src/adapter/outbound/httpclient/build.gradle), so ci-quality-gates.yml already ran them on the
  # same pull request. spring70CompatibilityTest is deliberately outside `check` and is what is left.
  httpclient-security-and-compatibility:
    needs: changes
    if: needs.changes.outputs.httpclient == 'true'
    runs-on: ubuntu-latest
    timeout-minutes: 30
    steps:
      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # actions/checkout@v4.2.2
      - uses: ./.github/actions/setup-gradle-java
      - name: Run the next-major Spring compatibility lane
        working-directory: src
        run: >-
          ./gradlew
          :adapter:outbound:httpclient:spring70CompatibilityTest
          --no-daemon
          --stacktrace

  # 16 and 18 — the ends of the Stable matrix. 17 runs in the integration stage. What this does not
  # do is skip the container lane on a runner without Docker: PostgreSqlContainerFactory throws,
  # because a skipped contract reports success for a database nobody tested.
  jpa-postgresql-contract:
    needs: changes
    if: needs.changes.outputs.jpa == 'true'
    runs-on: ubuntu-latest
    timeout-minutes: 45
    strategy:
      fail-fast: false
      matrix:
        postgresql: ["16", "18"]
    steps:
      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # actions/checkout@v4.2.2
      - uses: ./.github/actions/setup-gradle-java
      - name: Certify the platform against PostgreSQL ${{ matrix.postgresql }}
        working-directory: src
        run: >-
          ./gradlew
          :adapter:outbound:persistence-jpa:jpaPlatformContractTest
          -Pjpa.matrix.versions=${{ matrix.postgresql }}
          --no-daemon
          --stacktrace

  jpa-migration-smoke:
    needs: changes
    if: needs.changes.outputs.jpa == 'true'
    runs-on: ubuntu-latest
    timeout-minutes: 30
    steps:
      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # actions/checkout@v4.2.2
      - uses: ./.github/actions/setup-gradle-java
      - name: Run the migration upgrade smoke scenarios
        working-directory: src
        run: >-
          ./gradlew
          :adapter:outbound:persistence-jpa:jpaPlatformMigrationTest
          --no-daemon
          --stacktrace