# -----------------------------------------------------------------------------
# cameleer-website — Gitea Actions build + deploy
#
# Runner: self-hosted arm64 (Gitea Runner / act_runner).
# Deploy target: Hetzner Webhosting L (amd64).
#
# Architecture mismatch does NOT matter: Astro's output is static HTML/CSS/JS
# plus hashed assets. Nothing arch-specific ships in the bundle. Everything in
# this workflow — Node 20, rsync, ssh, curl, chromium — has native arm64.
#
# The only non-trivial arm64 gotcha is Lighthouse CI: Google Chrome has no
# stable Linux/arm64 build, so we install the distro-packaged Chromium and
# hand its path to LHCI via CHROME_PATH. On amd64 runners this still works;
# the step is idempotent if Chromium is already present.
#
# `runs-on` labels:
#   This file uses `ubuntu-latest`, which the default act_runner config maps
#   to `catthehacker/ubuntu:act-latest` (multi-arch, has apt + sudo). If your
#   runner is registered with different labels (e.g. `[self-hosted, arm64]`),
#   update `runs-on` below accordingly.
# -----------------------------------------------------------------------------

name: build-test-deploy

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]

jobs:
  build:
    runs-on: ubuntu-latest
    timeout-minutes: 20
    env:
      PUBLIC_AUTH_SIGNIN_URL: ${{ vars.PUBLIC_AUTH_SIGNIN_URL }}
      PUBLIC_AUTH_SIGNUP_URL: ${{ vars.PUBLIC_AUTH_SIGNUP_URL }}
      PUBLIC_SALES_EMAIL: ${{ vars.PUBLIC_SALES_EMAIL }}

    steps:
      - uses: actions/checkout@v4

      - uses: actions/setup-node@v4
        with:
          node-version: '20'
          cache: 'npm'

      # Lighthouse CI needs a Chrome/Chromium binary at runtime. Google Chrome
      # has no Linux/arm64 build, so install distro Chromium and export its
      # path. Handles both `chromium` (Debian) and `chromium-browser` (older
      # Ubuntu) package names, and works whether sudo is present or absent
      # (e.g. runner running as root).
      - name: Install Chromium for Lighthouse CI
        shell: bash
        run: |
          set -e
          if command -v sudo >/dev/null 2>&1; then SUDO=sudo; else SUDO=; fi

          resolve_chromium() {
            command -v chromium 2>/dev/null \
              || command -v chromium-browser 2>/dev/null \
              || true
          }

          CHROME_BIN="$(resolve_chromium)"
          if [ -z "$CHROME_BIN" ]; then
            $SUDO apt-get update -qq
            $SUDO apt-get install -y --no-install-recommends \
              chromium chromium-driver \
              || $SUDO apt-get install -y --no-install-recommends \
                   chromium-browser chromium-chromedriver
            CHROME_BIN="$(resolve_chromium)"
          fi

          if [ -z "$CHROME_BIN" ]; then
            echo "Failed to install a Chromium binary — Lighthouse CI cannot run."
            exit 1
          fi

          echo "CHROME_PATH=$CHROME_BIN" >> "$GITHUB_ENV"
          "$CHROME_BIN" --version || true

      - name: Install dependencies
        run: npm ci

      - name: Run unit tests
        run: npm test

      - name: Build site
        run: npm run build

      - name: Guard — no TBD markers may ship in built HTML
        run: |
          if grep -rl 'TBD:' dist 2>/dev/null | grep -E '\.(html|svg)$'; then
            echo "Built output contains unfilled <TBD:...> markers."
            echo "Fill in imprint.astro and privacy.astro operator fields before merging to main."
            exit 1
          fi

      - name: Validate HTML
        run: npm run lint:html

      - name: Check internal links
        run: npm run lint:links

      - name: Lighthouse CI
        env:
          CHROME_PATH: ${{ env.CHROME_PATH }}
        run: npx lhci autorun

      - name: Upload dist artifact
        if: github.ref == 'refs/heads/main'
        uses: actions/upload-artifact@v4
        with:
          name: dist
          path: dist/
          retention-days: 7

  deploy:
    if: github.ref == 'refs/heads/main'
    needs: build
    runs-on: ubuntu-latest
    timeout-minutes: 10
    concurrency:
      group: deploy-production
      cancel-in-progress: false

    steps:
      - name: Download dist artifact
        uses: actions/download-artifact@v4
        with:
          name: dist
          path: dist/

      - name: Configure SSH
        env:
          SFTP_KEY: ${{ secrets.SFTP_KEY }}
          SFTP_KNOWN_HOSTS: ${{ secrets.SFTP_KNOWN_HOSTS }}
        run: |
          set -e
          : "${SFTP_KEY:?SFTP_KEY secret must be set}"
          : "${SFTP_KNOWN_HOSTS:?SFTP_KNOWN_HOSTS secret must be set}"
          mkdir -p ~/.ssh
          printf '%s\n' "$SFTP_KEY" > ~/.ssh/id_ed25519
          chmod 600 ~/.ssh/id_ed25519
          printf '%s\n' "$SFTP_KNOWN_HOSTS" > ~/.ssh/known_hosts
          chmod 644 ~/.ssh/known_hosts
          # Ensure rsync + openssh are present even on a minimal runner image.
          if ! command -v rsync >/dev/null 2>&1 || ! command -v ssh >/dev/null 2>&1; then
            if command -v sudo >/dev/null 2>&1; then SUDO=sudo; else SUDO=; fi
            $SUDO apt-get update -qq
            $SUDO apt-get install -y --no-install-recommends rsync openssh-client
          fi

      - name: Deploy via rsync
        env:
          SFTP_USER: ${{ secrets.SFTP_USER }}
          SFTP_HOST: ${{ secrets.SFTP_HOST }}
          SFTP_PATH: ${{ secrets.SFTP_PATH }}
        run: |
          # Fail loudly if any secret is missing — otherwise rsync --delete
          # could be directed at the SSH user's home root.
          : "${SFTP_USER:?SFTP_USER secret must be set}"
          : "${SFTP_HOST:?SFTP_HOST secret must be set}"
          : "${SFTP_PATH:?SFTP_PATH secret must be set}"
          rsync -avz --delete \
            -e "ssh -i ~/.ssh/id_ed25519 -o StrictHostKeyChecking=yes -o UserKnownHostsFile=~/.ssh/known_hosts" \
            dist/ "$SFTP_USER@$SFTP_HOST:$SFTP_PATH/"

      - name: Post-deploy smoke test
        run: |
          set -e
          echo "Checking security headers on www.cameleer.io..."
          HEADERS=$(curl -sI https://www.cameleer.io/ || echo "")
          echo "$HEADERS" | grep -i '^strict-transport-security:' || { echo "HSTS missing"; exit 1; }
          echo "$HEADERS" | grep -i '^content-security-policy:' || { echo "CSP missing"; exit 1; }
          echo "$HEADERS" | grep -i '^x-frame-options:' || { echo "XFO missing"; exit 1; }
          echo "All required headers present on the live origin."