# CD: every push to main builds images once, deploys them to Test, runs
# the smoke suite against the live Test stage, and promotes the identical
# images to Int on success (ADR 0014). Prod deploys are a separate,
# manually gated release workflow (issue #89).

name: CD

on:
  push:
    branches: [main]

env:
  IMAGE_BASE: gitea.101010.cloud/stwaidele/dorfteich
  DEPLOY_HOST: one.101010.cloud

jobs:
  build-push:
    name: Build and push images
    runs-on: ubuntu-latest
    steps:
      - name: Check out repository
        uses: actions/checkout@v4

      - name: Log in to the Gitea registry
        run: printf '%s' "${{ secrets.REGISTRY_TOKEN }}" | tr -d '[:space:]' | docker login gitea.101010.cloud -u fable-5 --password-stdin

      # Tags: the immutable SHA (promotion + rollback target) and the
      # moving `test` tag that the Test stage's compose file pulls.
      - name: Build and push web image
        run: |
          docker build -f apps/web/Dockerfile --build-arg APP_VERSION=${{ github.sha }} \
            -t $IMAGE_BASE-web:${{ github.sha }} -t $IMAGE_BASE-web:test .
          docker push $IMAGE_BASE-web:${{ github.sha }}
          docker push $IMAGE_BASE-web:test

      - name: Build and push api image
        run: |
          docker build -f apps/api/Dockerfile --build-arg APP_VERSION=${{ github.sha }} \
            -t $IMAGE_BASE-api:${{ github.sha }} -t $IMAGE_BASE-api:test .
          docker push $IMAGE_BASE-api:${{ github.sha }}
          docker push $IMAGE_BASE-api:test

      - name: Build and push collab image
        run: |
          docker build -f apps/collab/Dockerfile --build-arg APP_VERSION=${{ github.sha }} \
            -t $IMAGE_BASE-collab:${{ github.sha }} -t $IMAGE_BASE-collab:test .
          docker push $IMAGE_BASE-collab:${{ github.sha }}
          docker push $IMAGE_BASE-collab:test

  deploy-test:
    name: Deploy to Test
    needs: build-push
    runs-on: ubuntu-latest
    steps:
      - name: Set up SSH
        run: |
          mkdir -p ~/.ssh && chmod 700 ~/.ssh
          printf '%s\n' "${{ secrets.DEPLOY_SSH_KEY_TEST }}" > ~/.ssh/id_ed25519
          chmod 600 ~/.ssh/id_ed25519
          printf '%s\n' "${{ secrets.DEPLOY_HOST_KEY }}" > ~/.ssh/known_hosts

      - name: Pull and restart the Test stack
        run: |
          ssh deploy@$DEPLOY_HOST 'cd /home/DOCKER/dorfteich-test \
            && docker compose pull --quiet && docker compose up -d --remove-orphans \
            && docker compose ps'

  smoke-test:
    name: Smoke tests against Test
    needs: deploy-test
    runs-on: ubuntu-latest
    steps:
      - name: Check out repository
        uses: actions/checkout@v4

      - name: Set up pnpm
        uses: pnpm/action-setup@v4

      - name: Set up Node.js
        uses: actions/setup-node@v4
        with:
          node-version: 22
          cache: pnpm

      - name: Install dependencies
        run: pnpm install --frozen-lockfile

      - name: Install Playwright browser
        run: pnpm --filter @dorfteich/web exec playwright install --with-deps chromium

      - name: Wait for the Test stage to be ready
        run: |
          for i in $(seq 1 30); do
            code=$(curl -s -o /dev/null -w '%{http_code}' https://test.dorfteich.cloud/api/v1/readyz || true)
            [ "$code" = "200" ] && exit 0
            sleep 5
          done
          echo "Test stage did not become ready" >&2; exit 1

      - name: Run smoke suite
        run: E2E_BASE_URL=https://test.dorfteich.cloud pnpm --filter @dorfteich/web exec playwright test e2e/smoke.spec.ts

  promote-int:
    name: Promote to Int
    needs: smoke-test
    runs-on: ubuntu-latest
    # Toggle: set the repo/org Actions variable `RUN_INT_DEPLOY` to `false`
    # (Gitea → Settings → Actions → Variables) to skip redeploying the Int
    # stack (e.g. host maintenance); unset/anything-else runs the normal
    # promotion. Int is a preview stage; CI quality gates are unaffected.
    if: ${{ vars.RUN_INT_DEPLOY != 'false' }}
    steps:
      - name: Log in to the Gitea registry
        run: printf '%s' "${{ secrets.REGISTRY_TOKEN }}" | tr -d '[:space:]' | docker login gitea.101010.cloud -u fable-5 --password-stdin

      # Registry-side retag of the SHA images that just passed on Test —
      # Int always runs bit-identical images, never a rebuild.
      - name: Retag SHA images as :int
        run: |
          docker buildx imagetools create -t $IMAGE_BASE-web:int $IMAGE_BASE-web:${{ github.sha }}
          docker buildx imagetools create -t $IMAGE_BASE-api:int $IMAGE_BASE-api:${{ github.sha }}
          docker buildx imagetools create -t $IMAGE_BASE-collab:int $IMAGE_BASE-collab:${{ github.sha }}

      - name: Set up SSH
        run: |
          mkdir -p ~/.ssh && chmod 700 ~/.ssh
          printf '%s\n' "${{ secrets.DEPLOY_SSH_KEY_INT }}" > ~/.ssh/id_ed25519
          chmod 600 ~/.ssh/id_ed25519
          printf '%s\n' "${{ secrets.DEPLOY_HOST_KEY }}" > ~/.ssh/known_hosts

      - name: Pull and restart the Int stack
        run: |
          ssh deploy@$DEPLOY_HOST 'cd /home/DOCKER/dorfteich-int \
            && docker compose pull --quiet && docker compose up -d --remove-orphans \
            && docker compose ps'