name: CD

# Triggers:
# - push: normal merges (manual gh pr merge)
# - workflow_run: after automerge completes (GITHUB_TOKEN merges don't trigger push)
# - workflow_dispatch: manual trigger via gh workflow run cd.yml
on:
  push:
    branches: [main]
  workflow_run:
    workflows: ["Automerge"]
    branches: [main]
    types: [completed]
  workflow_dispatch: {}

concurrency:
  group: deploy
  cancel-in-progress: false

jobs:
  build-images:
    name: Build & Push Docker Images
    runs-on: ubuntu-latest
    if: github.event_name != 'workflow_run' || github.event.workflow_run.conclusion == 'success'
    permissions:
      contents: read
      packages: write
    strategy:
      matrix:
        app: [journal, planner]
    steps:
      - uses: actions/checkout@v6

      - uses: docker/login-action@v4
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - uses: docker/build-push-action@v7
        with:
          context: .
          file: apps/${{ matrix.app }}/Dockerfile
          push: true
          tags: |
            ghcr.io/trails-cool/${{ matrix.app }}:latest
            ghcr.io/trails-cool/${{ matrix.app }}:${{ github.sha }}
          build-args: |
            SENTRY_AUTH_TOKEN=${{ secrets.SENTRY_AUTH_TOKEN }}
            SENTRY_RELEASE=${{ github.sha }}

  build-brouter:
    name: Build & Push BRouter Image
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
    steps:
      - uses: actions/checkout@v6

      - uses: docker/login-action@v4
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - uses: docker/build-push-action@v7
        with:
          context: docker/brouter
          push: true
          tags: |
            ghcr.io/trails-cool/brouter:latest
            ghcr.io/trails-cool/brouter:${{ github.sha }}

  deploy:
    name: Deploy to Hetzner
    needs: [build-images, build-brouter]
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v6

      - name: Copy files to server
        uses: appleboy/scp-action@v1
        with:
          host: ${{ secrets.DEPLOY_HOST }}
          username: root
          key: ${{ secrets.DEPLOY_SSH_KEY }}
          source: "infrastructure/docker-compose.yml,infrastructure/Caddyfile"
          target: /opt/trails-cool
          strip_components: 1

      - name: Deploy via SSH
        uses: appleboy/ssh-action@v1
        with:
          host: ${{ secrets.DEPLOY_HOST }}
          username: root
          key: ${{ secrets.DEPLOY_SSH_KEY }}
          script: |
            cd /opt/trails-cool

            # Login to ghcr.io to pull private images
            echo "${{ secrets.DEPLOY_GHCR_TOKEN }}" | docker login ghcr.io -u stigi --password-stdin

            # Download BRouter segments if missing
            if [ ! -d /opt/trails-cool/segments ] || [ -z "$(ls /opt/trails-cool/segments/*.rd5 2>/dev/null)" ]; then
              mkdir -p /opt/trails-cool/segments
              echo "Downloading Germany BRouter segments..."
              for tile in E5_N45 E5_N50 E10_N45 E10_N50; do
                [ -f "/opt/trails-cool/segments/${tile}.rd5" ] || \
                  wget -q "https://brouter.de/brouter/segments4/${tile}.rd5" -O "/opt/trails-cool/segments/${tile}.rd5"
              done
            fi

            # Pull latest images
            export SENTRY_RELEASE="${{ github.sha }}"
            docker compose pull

            # Push database schema (starts postgres, waits for healthy)
            docker compose run --rm journal npx drizzle-kit push --config /app/packages/db/drizzle.config.ts --force

            # Start all services
            docker compose up -d --remove-orphans

            # Verify services are running
            sleep 10
            docker compose ps