name: Build and Deploy LifeFAQ

on:
  push:
    branches:
      - main
  workflow_dispatch:

jobs:
  build-image:
    runs-on: debian-host

    env:
      PATH: /usr/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/sbin:/bin:/snap/bin
      DOCKER_HOST: unix:///var/run/docker.sock
      BUILDX_CONFIG: /tmp/buildx

    steps:
    - name: Checkout code
      uses: actions/checkout@v4

    - name: System info
      run: |
        uname -a
        whoami

    - name: Set up Docker Context for Buildx
      id: buildx-context
      run: |
        export DOCKER_HOST=tcp://docker:2376/
        export DOCKER_TLS_VERIFY=0
        docker context rm builders || true
        docker context create builders

    - name: Verify Docker
      run: docker --version

    - name: Set up Docker Buildx
      uses: docker/setup-buildx-action@v3
      env:
        PATH: /usr/bin:/usr/local/bin:/bin:/sbin:/usr/sbin

    - name: Log in to Docker Registry
      run: |
        echo "${{ secrets.HARBOR_ROBOT_TOKEN }}" | docker login registry.i80.dk -u "robot\$gitserver" --password-stdin
      env:
        PATH: /usr/bin:/usr/local/bin:/bin:/sbin:/usr/sbin

    - name: Check for changes
      id: changes
      uses: dorny/paths-filter@v2
      with:
        filters: |
          docker:
            - 'Dockerfile'
            - 'app/**'
            - 'requirements.txt'

    - name: Build and push Docker image
      if: steps.changes.outputs.docker == 'true'
      uses: docker/build-push-action@v5
      env:
        PATH: /usr/bin:/usr/local/bin:/bin:/sbin:/usr/sbin
      with:
        context: .
        file: ./Dockerfile
        push: true
        tags: |
          registry.i80.dk/gitea/lifefaq:latest

    - name: Test container health
      run: |
        echo "=== Starting container for health check ==="

        docker pull registry.i80.dk/gitea/lifefaq:latest

        CONTAINER_ID=$(docker run -d \
          -p 8000:8000 \
          -e PORT=8000 \
          -e APP_ENV=production \
          --name lifefaq-test \
          registry.i80.dk/gitea/lifefaq:latest)

        echo "Container started: ${CONTAINER_ID}"

        echo "Waiting for /health endpoint..."
        SUCCESS=false
        for i in {1..90}; do
          if curl -f -s http://localhost:8000/health > /dev/null 2>&1; then
            echo "✓ Health check passed after ${i} seconds"
            curl -s http://localhost:8000/health | jq '.' || echo "Health endpoint returned OK"
            SUCCESS=true
            break
          fi
          echo "Attempt ${i}/90 - waiting..."
          sleep 1
        done

        echo "=== Container Logs ==="
        docker logs lifefaq-test

        docker stop lifefaq-test
        docker rm lifefaq-test

        if [ "$SUCCESS" = false ]; then
          echo "✗ Health check failed after 90 seconds"
          exit 1
        fi

        echo "✓ Container health check passed - safe to deploy"
      env:
        PATH: /usr/bin:/usr/local/bin:/bin:/sbin:/usr/sbin

    - name: Deploy to Nomad
      run: |
        nomad job validate lifefaq.nomad
        nomad job run lifefaq.nomad
      env:
        NOMAD_ADDR: "https://nomad.i80.dk:4646"

    - name: Wait for deployment
      run: |
        echo "Checking deployment status..."
        nomad job status lifefaq

        echo "=== Allocation Details ==="
        nomad job allocs lifefaq

        echo "=== Getting logs from allocations ==="
        for alloc in $(nomad job allocs -all lifefaq | tail -n +2 | awk '{print $1}'); do
          echo "Logs for allocation $alloc:"

          timeout=250
          SECONDS=0
          until nomad alloc logs "$alloc" 2>/dev/null || [ $SECONDS -gt $timeout ]; do
            echo "Waiting for allocation to start... ($SECONDS/$timeout seconds)"
            sleep 5
          done

          [ $SECONDS -gt $timeout ] && echo "Timeout for $alloc"
          echo "---"
        done
      env:
        NOMAD_ADDR: "https://nomad.i80.dk:4646"

    - name: Notify deployment status
      run: |
        echo "✅ Deployment completed!"
        echo "LifeFAQ should be available at: https://lifefaq.i80.dk"
        echo "Health check endpoint: https://lifefaq.i80.dk/health"