name: Build and Deploy iObj

on:
  push:
    branches:
      - main
  workflow_dispatch:

env:
  SERVICE_NAME: iobj

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

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

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

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

    - name: Build Docker image
      run: |
        SHA=$(git rev-parse --short HEAD)
        docker build \
          -t registry.i80.dk/gitea/iobj:latest \
          -t registry.i80.dk/gitea/iobj:$SHA .

    - name: Push Docker image
      run: |
        SHA=$(git rev-parse --short HEAD)
        docker push registry.i80.dk/gitea/iobj:latest
        docker push registry.i80.dk/gitea/iobj:$SHA
      env:
        PATH: /usr/bin:/usr/local/bin:/bin:/sbin:/usr/sbin

    - name: Deploy to Nomad
      run: |
        SHA=$(git rev-parse --short HEAD)
        nomad job validate -var="image_tag=$SHA" ${SERVICE_NAME}.nomad
        # Rolling deploy: canary replaces the existing job, keeping old alloc alive
        # until the new one passes its health check (zero-downtime)
        nomad job run -var="image_tag=$SHA" ${SERVICE_NAME}.nomad
      env:
        NOMAD_ADDR: "https://nomad.i80.dk:4646"

    - name: Wait for deployment
      run: |
        echo "Checking deployment status..."
        nomad job status ${SERVICE_NAME}

        echo "=== Allocation Details ==="
        nomad job allocs ${SERVICE_NAME}

        echo "=== Getting logs from allocations ==="
        for alloc in $(nomad job allocs ${SERVICE_NAME} -short | tail -n +2 | awk '{print $1}'); do
          echo "Logs for allocation $alloc:"
          nomad alloc logs $alloc || echo "No logs available for $alloc"
        done
      env:
        NOMAD_ADDR: "https://nomad.i80.dk:4646"

    - name: Notify deployment status
      run: |
        echo "Deployment completed!"
        echo "iObj service should be available at: https://${SERVICE_NAME}.i80.dk"
        echo "Health check endpoint: https://${SERVICE_NAME}.i80.dk/health"