name: CI

on:
  pull_request:
    types: [opened, synchronize]
  workflow_dispatch:

env:
  PIP_BREAK_SYSTEM_PACKAGES: "1"
  PYTHONPATH: src
  CI_GITEA_API_TOKEN: ${{ secrets.CI_GITEA_API_TOKEN }}
  CI_GITEA_USERNAME: ${{ vars.CI_GITEA_USERNAME }}

jobs:
  # Single validation job that merges: quality, detect-changes,
  # release-dry-run, pre-merge-check, pr-review, and discover-runners.
  # Uses ci-full image (has git-cliff for release-dry-run).
  # Saves ~5x checkout+setup overhead vs 6 separate jobs.
  validate:
    runs-on: docker
    container: git.oblachno.oblachno.fyi/oblachno-oss/runner-images/ci-full:latest
    timeout-minutes: 15
    defaults:
      run:
        shell: bash
    outputs:
      ansible-changed: ${{ steps.detect.outputs.ansible-changed }}
      user-facing-changed: ${{ steps.detect.outputs.user-facing-changed }}
      runner-count: ${{ steps.discover-runners.outputs.runner-count }}
      runner-indices: ${{ steps.discover-runners.outputs.runner-indices }}
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
      - name: Set up environment
        env:
          CI_GITEA_API_TOKEN: ${{ secrets.CI_GITEA_API_TOKEN }}
          CI_GITEA_USERNAME: ${{ vars.CI_GITEA_USERNAME }}
        run: make setup-image EXTRAS=ci,lint
      # --- quality steps ---
      - name: Lint all
        run: |
          . .venv/bin/activate 2>/dev/null || true
          export PATH="$HOME/.local/bin:$PATH"
          make lint-all
      - name: Unit tests with 100% coverage
        run: |
          . .venv/bin/activate 2>/dev/null || true
          make pytest-cov
      - name: Documentation gate (coverage + stale refs + lint + version refs + prose)
        env:
          DEVX_DOC_COVERAGE_STRICT: "1"
          DEVX_DOC_VERSIONS_PKG: grm
          DEVX_VALE_LEVEL: warning
        run: |
          . .venv/bin/activate 2>/dev/null || true
          export PATH="$HOME/.local/bin:$PATH"
          make devx-docs-check
      - name: Translation completeness check
        run: |
          . .venv/bin/activate 2>/dev/null || true
          python3 -m devx.ci.check_translations --translations src/grm/translations.json
      - name: Check unit test speed
        run: |
          . .venv/bin/activate 2>/dev/null || true
          python3 -m devx.tools.check_test_speed --max-seconds 4 --max-single-seconds 0.5
      - name: Dependency security scan
        run: |
          . .venv/bin/activate 2>/dev/null || true
          # Install pip in venv if missing (needed by pip-audit)
          .venv/bin/python -m ensurepip 2>/dev/null || true
          PIPAPI_PYTHON_LOCATION=$PWD/.venv/bin/python \
            pip-audit --desc --skip-editable 2>&1 || true
      - name: Workflow dry-run validation
        run: |
          . .venv/bin/activate 2>/dev/null || true
          export PATH="$HOME/.local/bin:$PATH"
          # Best-effort: only runs if act_runner is installed
          if command -v act_runner >/dev/null 2>&1; then
            make workflow-dryrun
          else
            echo "act_runner not found — skipping workflow dry-run (static lint still passed)"
          fi
      # --- detect-changes step ---
      - name: Detect changed paths
        id: detect
        env:
          DEVX_TASK_PREFIX: GRM
        run: |
          . .venv/bin/activate 2>/dev/null || true
          python3 -m devx.ci.classify_changes \
            --base "origin/master" \
            --head "${{ github.event.pull_request.head.sha || github.sha }}" \
            --github-output
      # --- validate-pr + pr-review steps (PR only) ---
      - name: Validate auto-merge preconditions
        if: github.event_name == 'pull_request'
        env:
          VIKUNJA_TOKEN: ${{ secrets.VIKUNJA_TOKEN }}
          DEVX_TASK_PREFIX: GRM
          DEVX_VIKUNJA_PROJECT_ID: 3
          HEAD_REF: ${{ github.head_ref }}
          PR_TITLE: ${{ github.event.pull_request.title }}
          REPOSITORY: ${{ github.repository }}
          PR_NUMBER: ${{ github.event.number }}
        run: |
          . .venv/bin/activate 2>/dev/null || true
          python3 -m devx.ci.check_auto_merge_ready \
            --branch "$HEAD_REF" \
            --pr-title "$PR_TITLE" \
            --repo "$REPOSITORY" \
            --pr-number "$PR_NUMBER"
      - name: Run automated PR review
        if: github.event_name == 'pull_request'
        run: |
          . .venv/bin/activate 2>/dev/null || true
          set -euo pipefail
          python3 -m devx.ci.pr_review \
            "${{ github.event.number }}" \
            "${{ github.repository }}"
      # --- release-dry-run step (conditional) ---
      - name: Release dry-run validation
        if: steps.detect.outputs.user-facing-changed == 'true'
        env:
          DEVX_VERSION_FILE: src/grm/__init__.py
          DEVX_TASK_PREFIX: GRM
        run: |
          . .venv/bin/activate 2>/dev/null || true
          export PATH="$HOME/.local/bin:$PATH"
          python3 -m devx.ci.release --dry-run
      # --- discover-runners step (conditional on ansible-changed) ---
      - name: Discover available molecule runners
        id: discover-runners
        if: steps.detect.outputs.ansible-changed == 'true'
        env:
          MOLECULE_RUNNERS: ${{ vars.MOLECULE_RUNNERS }}
        run: |
          . .venv/bin/activate 2>/dev/null || true
          python3 -m devx.molecule.discover_runners \
            --owner "${{ github.repository_owner }}" \
            --repo "${{ github.event.repository.name }}" \
            --github-output
      - name: Notify on failure
        if: failure()
        env:
          CI_GITEA_API_TOKEN: ${{ secrets.CI_GITEA_API_TOKEN }}
        run: |
          . .venv/bin/activate 2>/dev/null || true
          export PATH="$HOME/.local/bin:$PATH"
          python3 -m devx.ci.notify_failure --auto-login \
            --repo "${{ github.repository }}" \
            --run-id "${{ github.run_id }}" \
            --workflow "ci/validate" \
            --commit "${{ github.sha }}"

  molecule-tests:
    needs: [validate]
    if: needs.validate.outputs.ansible-changed == 'true'
    runs-on: docker
    container: git.oblachno.oblachno.fyi/oblachno-oss/runner-images/ci-full:latest
    timeout-minutes: 15
    strategy:
      fail-fast: true
      max-parallel: 6
      matrix:
        runner-index: [1, 2, 3, 4, 5, 6]
    steps:
      - uses: actions/checkout@v4
      - name: Set up environment
        env:
          CI_GITEA_API_TOKEN: ${{ secrets.CI_GITEA_API_TOKEN }}
          CI_GITEA_USERNAME: ${{ vars.CI_GITEA_USERNAME }}
        run: make setup-image EXTRAS=ci,molecule
      - name: Install Ansible collections
        run: |
          . .venv/bin/activate 2>/dev/null || true
          python3 -m devx.tools.setup --skip-install --no-pre-commit --no-tea-login
      - name: Discover assigned test pairs
        env:
          RUNNER_INDEX: ${{ matrix.runner-index }}
          MAX_RUNNERS: 6
        run: |
          . .venv/bin/activate 2>/dev/null || true
          python3 -m devx.molecule.distribute_molecule \
            --runner-index "$RUNNER_INDEX" \
            --max-runners "$MAX_RUNNERS" \
            --github-env
      - name: Run molecule tests
        if: env.SKIP != 'true'
        env:
          GITEA_URL: ${{ github.server_url }}
          CI_GITEA_API_TOKEN: ${{ secrets.CI_GITEA_API_TOKEN }}
          CI_GITEA_USERNAME: ${{ vars.CI_GITEA_USERNAME }}
          RUN_ID: ${{ github.run_id }}
          ANSIBLE_INJECT_INVOCATION: "1"
          JOB_NAME: ${{ github.job }}
          MATRIX_INDEX: ${{ matrix.runner-index }}
          GITEA_REPOSITORY: ${{ github.repository }}
          DOCKER_HOST: unix:///var/run/docker.sock
        run: |
          . .venv/bin/activate 2>/dev/null || true
          if [ -z "$TEST_PAIRS" ]; then exit 0; fi
          if ! python3 -c "import docker; docker.from_env().ping()" 2>/dev/null; then
            echo "Docker not available in CI container — skipping molecule tests"
            exit 0
          fi
          _TOKEN="$CI_GITEA_API_TOKEN"; [ -z "$_TOKEN" ] && _TOKEN="$CI_GITEA_TOKEN"
          [ -z "$_TOKEN" ] && { echo "Gitea API token not set — skipping Docker login"; exit 0; }
          echo "$_TOKEN" | docker login git.oblachno.oblachno.fyi -u "$CI_GITEA_USERNAME" --password-stdin
          # shellcheck disable=SC2086 # intentional word splitting for argument expansion
          python3 -m devx.molecule.molecule_ci_guard $TEST_PAIRS

  auto-merge:
    # Auto-merge runs after validate + molecule-tests pass (or molecule is skipped).
    # Uses always() so it evaluates even when molecule-tests is skipped
    # (Gitea Actions skips dependent jobs of skipped jobs by default).
    needs: [validate, molecule-tests]
    if: >-
      always() &&
      github.event_name == 'pull_request' &&
      needs.validate.result == 'success' &&
      (needs.molecule-tests.result == 'success' || needs.molecule-tests.result == 'skipped')
    runs-on: docker
    container: git.oblachno.oblachno.fyi/oblachno-oss/runner-images/ci-base:latest
    timeout-minutes: 10
    defaults:
      run:
        shell: bash
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
          token: ${{ secrets.CI_GITEA_API_TOKEN }}
      - name: Set up environment
        env:
          CI_GITEA_API_TOKEN: ${{ secrets.CI_GITEA_API_TOKEN }}
          CI_GITEA_USERNAME: ${{ vars.CI_GITEA_USERNAME }}
        run: make setup-image EXTRAS=ci
      - name: Post approval review
        env:
          REVIEWER_GITEA_API_TOKEN: ${{ secrets.REVIEWER_GITEA_API_TOKEN }}
          PR_NUMBER: ${{ github.event.number }}
          REPOSITORY: ${{ github.repository }}
        run: |
          . .venv/bin/activate 2>/dev/null || true
          python3 -m devx.ci.pr_review \
            "$PR_NUMBER" \
            "$REPOSITORY" \
            --event APPROVE \
            --checklist-confirmed \
            --checklist-categories 1,2,3,4,5,6,7,8,9,10,11,12,13 \
            --body "Auto-approved: all CI checks passed (validate, molecule-tests)."
      - name: Squash merge with task ID
        env:
          CI_GITEA_API_TOKEN: ${{ secrets.CI_GITEA_API_TOKEN }}
          VIKUNJA_TOKEN: ${{ secrets.VIKUNJA_TOKEN }}
          DEVX_TASK_PREFIX: GRM
          DEVX_VIKUNJA_PROJECT_ID: 3
          HEAD_REF: ${{ github.head_ref }}
          PR_TITLE: ${{ github.event.pull_request.title }}
          REPOSITORY: ${{ github.repository }}
          PR_NUMBER: ${{ github.event.number }}
        run: |
          . .venv/bin/activate 2>/dev/null || true
          python3 -m devx.ci.auto_merge \
            "$HEAD_REF" \
            "$PR_TITLE" \
            "$REPOSITORY" \
            "$PR_NUMBER"