name: "Florence: upstream-watch"

# Florence gaar sin upstream-runde: tjekker microsoft/BCQuality for nye
# commits og taender lampen naar der er noget - en faerdigvalideret sync-PR
# ved rent merge, et Issue naar der kraeves menneskehaender (konflikt eller
# validator-fejl). Doemmekraften (review/merge/promote) forbliver hos Michael.
#
# NB: PRs oprettet med GITHUB_TOKEN trigger ikke pull_request-CI (GitHub-
# begraensning) - derfor koerer BEGGE validatorer HER, og resultatet staar
# i PR-beskrivelsen.

on:
  schedule:
    - cron: '0 5 * * 1'   # mandag 05:00 UTC - ugens foerste runde
  workflow_dispatch:        # manuel runde: "Florence, gaa din runde"

permissions:
  contents: write
  pull-requests: write
  issues: write
  workflows: write   # upstream commits ofte selv .github/workflows/* filer -
                      # uden dette afviser GitHub push af sync-branchen

jobs:
  round:
    runs-on: ubuntu-latest
    steps:
      - name: Check out QualityHub
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
          ref: main

      - name: Fetch upstream (microsoft/BCQuality)
        id: probe
        run: |
          git remote add upstream https://github.com/microsoft/BCQuality.git
          git fetch upstream main --quiet
          BASE=$(git merge-base upstream/main origin/main)
          COUNT=$(git rev-list --count "$BASE..upstream/main")
          echo "count=$COUNT" >> "$GITHUB_OUTPUT"
          echo "base=$BASE" >> "$GITHUB_OUTPUT"
          if [ "$COUNT" = "0" ]; then
            echo "## Florence: roligt paa gangene" >> "$GITHUB_STEP_SUMMARY"
            echo "Ingen nye upstream-commits. Lampen forbliver slukket." >> "$GITHUB_STEP_SUMMARY"
          fi

      - name: Merge upstream on a sync branch
        id: merge
        if: steps.probe.outputs.count != '0'
        run: |
          git config user.name "Florence (upstream-watch)"
          git config user.email "florence-bot@curabis.dk"
          BRANCH="chore/upstream-sync-$(date -u +%Y-%m-%d)"
          echo "branch=$BRANCH" >> "$GITHUB_OUTPUT"
          git checkout -B "$BRANCH" origin/main
          if git merge upstream/main --no-edit; then
            echo "clean=true" >> "$GITHUB_OUTPUT"
          else
            echo "clean=false" >> "$GITHUB_OUTPUT"
            git merge --abort
          fi

      - name: Set up Python + validate merged corpus
        id: validate
        if: steps.merge.outputs.clean == 'true'
        run: |
          pip install pyyaml --quiet
          set +e
          python .github/scripts/validate_frontmatter.py --root . > /tmp/val.txt 2>&1
          V1=$?
          pwsh -File .github/scripts/Test-KnowledgeIndex.ps1 -Root "$PWD" > /tmp/idx.txt 2>&1
          V2=$?
          set -e
          echo "ok=$([ $V1 -eq 0 ] && [ $V2 -eq 0 ] && echo true || echo false)" >> "$GITHUB_OUTPUT"
          tail -3 /tmp/val.txt; tail -3 /tmp/idx.txt

      - name: Open PR (clean merge, validators green)
        id: openpr
        if: steps.validate.outputs.ok == 'true'
        continue-on-error: true
        env:
          GH_TOKEN: ${{ github.token }}
        run: |
          git push -u origin "${{ steps.merge.outputs.branch }}"
          COMMITS=$(git log --format='- %h %s' "${{ steps.probe.outputs.base }}..upstream/main")
          gh pr create --base main --head "${{ steps.merge.outputs.branch }}" \
            --title "Florence: upstream-sync — ${{ steps.probe.outputs.count }} nye Microsoft-commits" \
            --body "$(printf 'Florence gik sin runde og fandt nyt fra microsoft/BCQuality:\n\n%s\n\n**Valideret i denne workflow** (auto-PRs trigger ikke CI): frontmatter + knowledge-index begge groenne over det mergede korpus.\n\nEfter merge: promote (jf. setup-doc-reglen).\n\nFloerence lyser kun - Michael beslutter.' "$COMMITS")"
          echo "## Florence taendte lampen: sync-PR oprettet (${{ steps.probe.outputs.count }} commits)" >> "$GITHUB_STEP_SUMMARY"

      - name: Open issue (conflict or validation failure)
        if: steps.probe.outputs.count != '0' && (steps.merge.outputs.clean != 'true' || steps.validate.outputs.ok != 'true')
        env:
          GH_TOKEN: ${{ github.token }}
        run: |
          REASON=$([ "${{ steps.merge.outputs.clean }}" != "true" ] && echo "Merge-konflikt mod upstream" || echo "Validator-fejl over merget korpus")
          COMMITS=$(git log --format='- %h %s' "${{ steps.probe.outputs.base }}..upstream/main")
          gh issue create \
            --title "Florence: upstream-sync kraever menneskehaender ($REASON)" \
            --body "$(printf '%s.\n\nVentende upstream-commits:\n%s\n\nManuel procedure: fetch bcquality/upstream, merge paa branch, loes, valider, PR.' "$REASON" "$COMMITS")"
          echo "## Florence taendte lampen: ISSUE oprettet ($REASON)" >> "$GITHUB_STEP_SUMMARY"

      - name: Open issue (PR-create/push failure after clean merge)
        if: steps.validate.outputs.ok == 'true' && steps.openpr.outcome == 'failure'
        env:
          GH_TOKEN: ${{ github.token }}
        run: |
          COMMITS=$(git log --format='- %h %s' "${{ steps.probe.outputs.base }}..upstream/main")
          gh issue create \
            --title "Florence: upstream-sync — push/PR-oprettelse fejlede efter ren merge" \
            --body "$(printf 'Merge var ren og validatorerne groenne, men push af sync-branchen eller PR-oprettelsen fejlede (se Actions-loggen for denne koersel).\n\nVentende upstream-commits:\n%s\n\nManuel procedure: fetch upstream, merge paa branch %s, push, PR.' "$COMMITS" "${{ steps.merge.outputs.branch }}")"
          echo "## Florence taendte lampen: ISSUE oprettet (push/PR fejlede)" >> "$GITHUB_STEP_SUMMARY"
          exit 1