---
kind: pipeline
type: docker
name: default

# ARM64 platform (for your Pi runner)
platform:
  os: linux
  arch: arm64

workspace:
  path: /drone/src

steps:
  # Step 1: Check if image for the latest tag exists locally
  - name: check-version
    image: docker:24
    environment:
      DOCKER_HOST: tcp://private-pi:2376
    commands:
      - apk add --no-cache git
      - git fetch --tags
      - |
        LATEST_TAG=$(git describe --tags --abbrev=0)
        echo "Latest Git tag: $LATEST_TAG"

        if docker image inspect apps/homepage:$LATEST_TAG > /dev/null 2>&1; then
          echo "✅ Docker image apps/homepage:$LATEST_TAG already exists — skipping build"
          exit 78   # tells Drone to stop pipeline gracefully
        else
          echo "⚙️  Docker image apps/homepage:$LATEST_TAG not found — proceeding to build..."
        fi

  # Step 2: Build Docker image (dynamic tag)
  - name: build-image
    image: docker:24
    environment:
      DOCKER_HOST: tcp://private-pi:2376
    commands:
      - |
        IMAGE_TAG=${DRONE_TAG:-latest}
        echo "🔨 Building Docker image apps/homepage:$IMAGE_TAG ..."
        docker build -t apps/homepage:$IMAGE_TAG .

  # Step 3: Stop old container (if exists)
  - name: stop-old
    image: docker:24
    environment:
      DOCKER_HOST: tcp://private-pi:2376
    commands:
      - |
        echo "🛑 Stopping old container..."
        docker rm -f homepage || true

  # Step 4: Run container
  - name: run-container
    image: docker:24
    environment:
      DOCKER_HOST: tcp://private-pi:2376
    commands:
      - |
        IMAGE_TAG=${DRONE_TAG:-latest}
        echo "🚀 Starting container apps/homepage:$IMAGE_TAG ..."
        docker run -d \
          --name homepage \
          -p 3001:3000 \
          -e NODE_ENV=production \
          apps/homepage:$IMAGE_TAG

# Trigger rules
trigger:
  event:
    - push
    - tag
    - custom