# Momentrum CI (Contabo-Gitea) — build · test · push · deploy(prod)
# Zielt auf das Gitea auf momentrum-k3s-01 (org: momentrum).
#
# Umgebungs-Modell fuer ibo (wie momentrum-kanban: PR-Preview-dev + prod):
#   - dev  = EPHEMERE PR-Previews. Kein Deploy-Step noetig: das ArgoCD-
#            ApplicationSet (momentrum-deploy apps/internal/ibo/preview.yaml) liest
#            den Tag pr-<nr>-<sha7> direkt aus dem PR -> https://ibo-pr-<nr>.dev.momentrum.de.
#            PR braucht das Gitea-Label "preview" (Opt-in-Gate).
#   - prod = deployt AUTOMATISCH bei jedem main-Push (Job "deploy" bumpt
#            apps/internal/ibo/app.yaml im CD-Repo -> ArgoCD synct prod).
#            Rollback = git revert im CD-Repo (siehe infra/RUNBOOK-ibo.md).
#
# Image-Tag ist immutable pro Commit:
#   - Pull Request:  pr-<nummer>-<shortsha>
#   - Push auf main: pr-<id>-<sha> (aus Merge-Message) bzw. main-<shortsha>
name: Momentrum CI

on:
  push:
    branches: [main]
  pull_request:

permissions:
  contents: read
  packages: write

env:
  # :3000 = direkt zu Gitea (HTTP). Host-Docker hat diese Registry in insecure-registries.
  REGISTRY: momentrum-k3s-01.tailcc1bcf.ts.net:3000
  IMAGE: myapps/ibo-web
  CHART_PATH: infra/k8s/base/ibo

jobs:
  version:
    name: Version (aus PR-ID / SHA)
    runs-on: ubuntu-latest
    outputs:
      tag: ${{ steps.v.outputs.tag }}
    steps:
      - id: v
        env:
          HEAD_MSG: ${{ github.event.head_commit.message }}
        run: |
          if [ "${{ github.event_name }}" = "pull_request" ]; then
            short=$(echo "${{ github.event.pull_request.head.sha }}" | cut -c1-7)
            tag="pr-${{ github.event.number }}-${short}"
          else
            short=$(echo "${GITHUB_SHA}" | cut -c1-7)
            # Push auf main = PR-Merge: PR-ID aus der Merge-Commit-Message ziehen.
            # `|| true`: kein #N in der Message darf unter set -e -o pipefail killen.
            pr=$(printf '%s' "$HEAD_MSG" | grep -oE '#[0-9]+' | head -1 | tr -d '#' || true)
            if [ -n "$pr" ]; then tag="pr-${pr}-${short}"; else tag="main-${short}"; fi
          fi
          echo "tag=$tag" >> "$GITHUB_OUTPUT"
          echo "Image-Tag: $tag"

  test:
    name: Test (compile + pytest)
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-python@v5
        with:
          python-version: "3.12"
      - run: pip install --no-cache-dir -r requirements.txt pytest
      - name: Compile-Check (alle Module)
        run: python -m compileall -q app.py core.py config.py immo_bot.py mailtm.py autofill.py autofill_kontakt.py cookies_setup.py
      - name: Unit-Tests (falls vorhanden)
        run: |
          if ls test_*.py >/dev/null 2>&1; then pytest -q; else echo "keine Tests - skip"; fi

  build-push:
    name: Build & Push image
    runs-on: ubuntu-latest
    needs: [version, test]
    steps:
      - uses: actions/checkout@v4
        with:
          ref: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.sha || '' }}
      # Plain docker build/push -> Host-Docker-Daemon (gemounteter Socket) inkl.
      # dessen insecure-registries. buildx wuerde die daemon-Config ignorieren.
      - name: Login to Gitea Registry
        run: echo "${{ secrets.REGISTRY_TOKEN }}" | docker login "${{ env.REGISTRY }}" -u "${{ secrets.REGISTRY_USER }}" --password-stdin
      - name: Build & push
        run: |
          IMG="${{ env.REGISTRY }}/${{ env.IMAGE }}:${{ needs.version.outputs.tag }}"
          ok=""
          for attempt in 1 2 3; do
            echo "== Build-Versuch $attempt =="
            if DOCKER_BUILDKIT=1 docker build -t "$IMG" -f Dockerfile .; then ok=1; break; fi
            echo "Build fehlgeschlagen (Versuch $attempt), neuer Versuch in 10s..."; sleep 10
          done
          [ "$ok" = "1" ] || { echo "Build nach 3 Versuchen fehlgeschlagen"; exit 1; }
          docker push "$IMG"

  helm-validate:
    name: Helm lint + template
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: azure/setup-helm@v4
        with:
          version: v3.17.3
      - run: |
          helm lint "${{ env.CHART_PATH }}"
          helm template ibo "${{ env.CHART_PATH }}" >/dev/null

  # CD-Write-back: nur auf main (= PR-Merge). Bumpt den Image-Tag in
  # apps/internal/ibo/app.yaml im CD-Repo -> ArgoCD deployt PROD automatisch.
  # PR-Previews deployen NICHT hierueber (die treibt das ApplicationSet direkt aus
  # dem PR). DEPLOY_TOKEN = Gitea-Token mit Write auf momentrum-deploy.
  deploy:
    name: Deploy PROD (Image-Tag -> CD-Repo)
    runs-on: ubuntu-latest
    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
    needs: [version, build-push, helm-validate]
    steps:
      - name: Write-back image.tag nach momentrum-deploy (app.yaml)
        run: |
          TAG="${{ needs.version.outputs.tag }}"
          git clone -q "http://ci:${{ secrets.DEPLOY_TOKEN }}@100.111.27.99:3000/momentrum/momentrum-deploy.git" /tmp/deploy
          cd /tmp/deploy
          APP_FILE="apps/internal/ibo/app.yaml"
          grep -qE '^          tag: ' "$APP_FILE" || { echo "FEHLER: 'tag:'-Zeile nicht in $APP_FILE gefunden"; exit 1; }
          sed -i "s|^          tag: .*|          tag: ${TAG}|" "$APP_FILE"
          git config user.email "ci@momentrum.local"
          git config user.name "Momentrum CI"
          git commit -am "ibo: deploy prod ${TAG}" || { echo "kein Change - Tag identisch"; exit 0; }
          git push origin HEAD:main
          echo "Deployed prod tag ${TAG} -> momentrum-deploy"