---
kind: pipeline
type: docker
name: nakama-server

platform:
  os: linux
  arch: arm64

workspace:
  path: /drone/src

volumes:
  - name: dockersock
    host:
      path: /var/run/docker.sock

steps:
  # -----------------------------------------------------
  # 1. Fetch latest Git tag
  # -----------------------------------------------------
  - name: fetch-tags
    image: docker:24
    volumes:
      - name: dockersock
        path: /var/run/docker.sock
    commands:
      - apk add --no-cache git
      - git fetch --tags
      - |
        LATEST_TAG=$(git describe --tags --abbrev=0 2>/dev/null | tr -d '\n')
        echo "Latest Git tag: $LATEST_TAG"
        echo "$LATEST_TAG" > /drone/src/LATEST_TAG.txt
        if [ -z "$LATEST_TAG" ]; then
          echo "❌ No git tags found. Cannot continue."
          exit 1
        fi

  # -----------------------------------------------------
  # 2. Check if remote image already exists
  # -----------------------------------------------------
  - name: check-remote-image
    image: docker:24
    volumes:
      - name: dockersock
        path: /var/run/docker.sock
    environment:
      REGISTRY_HOST:
        from_secret: REGISTRY_HOST
    commands:
      - IMAGE_TAG=$(cat /drone/src/LATEST_TAG.txt | tr -d '\n')
      - echo "Checking if $REGISTRY_HOST/lila-games/nakama-server:$IMAGE_TAG exists..."
      - |
        if docker pull $REGISTRY_HOST/lila-games/nakama-server:$IMAGE_TAG > /dev/null 2>&1; then
          echo "✅ Image already exists: $REGISTRY_HOST/lila-games/nakama-server:$IMAGE_TAG"
          exit 78
        else
          echo "⚙️ Image does not exist. Will build."
        fi

  # -----------------------------------------------------
  # 3. Build Nakama Docker image
  # -----------------------------------------------------
  - name: build-image
    image: docker:24
    volumes:
      - name: dockersock
        path: /var/run/docker.sock
    commands:
      - IMAGE_TAG=$(cat /drone/src/LATEST_TAG.txt | tr -d '\n')
      - echo "🔨 Building Nakama image lila-games/nakama-server:$IMAGE_TAG"
      - |
        docker build \
          --network=host \
          -t lila-games/nakama-server:$IMAGE_TAG \
          -t lila-games/nakama-server:latest \
          /drone/src

  # -----------------------------------------------------
  # 4. Push Nakama image to registry
  # -----------------------------------------------------
  - name: push-image
    image: docker:24
    volumes:
      - name: dockersock
        path: /var/run/docker.sock
    environment:
      REGISTRY_HOST:
        from_secret: REGISTRY_HOST
      REGISTRY_USER:
        from_secret: REGISTRY_USER
      REGISTRY_PASS:
        from_secret: REGISTRY_PASS
    commands:
      - IMAGE_TAG=$(cat /drone/src/LATEST_TAG.txt | tr -d '\n')
      - echo "🔑 Logging into registry..."
      - echo "$REGISTRY_PASS" | docker login $REGISTRY_HOST -u "$REGISTRY_USER" --password-stdin
      - echo "🏷️ Tagging images..."
      - docker tag lila-games/nakama-server:$IMAGE_TAG $REGISTRY_HOST/lila-games/nakama-server:$IMAGE_TAG
      - docker tag lila-games/nakama-server:$IMAGE_TAG $REGISTRY_HOST/lila-games/nakama-server:latest
      - echo "📤 Pushing images..."
      - docker push $REGISTRY_HOST/lila-games/nakama-server:$IMAGE_TAG
      - docker push $REGISTRY_HOST/lila-games/nakama-server:latest

  # -----------------------------------------------------
  # 5. Stop old Nakama container
  # -----------------------------------------------------
  - name: stop-old
    image: docker:24
    volumes:
      - name: dockersock
        path: /var/run/docker.sock
    commands:
      - echo "🛑 Stopping old Nakama container..."
      - docker rm -f nakama-server || true

  # -----------------------------------------------------
  # 6. Run new Nakama container
  # -----------------------------------------------------
  - name: run-container
    image: docker:24
    volumes:
      - name: dockersock
        path: /var/run/docker.sock
    environment:
      DB_ADDR:
        from_secret: POSTGRES_ADDR
      SERVER_KEY:
        from_secret: SERVER_KEY
      REGISTRY_HOST:
        from_secret: REGISTRY_HOST
    commands:
      - IMAGE_TAG=$(cat /drone/src/LATEST_TAG.txt | tr -d '\n')
      - echo "🚀 Starting Nakama server..."
      - |
        docker run -d \
          --name nakama-server \
          -p 7350:7350 \
          -p 7351:7351 \
          -p 7349:7349 \
          --restart always \
          --add-host private-pi:192.168.1.111 \
          -e DB_ADDR="$DB_ADDR" \
          -e SERVER_KEY="$SERVER_KEY" \
          -v /mnt/omnissiah-vault/data/nakama/modules:/nakama/data/modules \
          -v /mnt/omnissiah-vault/data/nakama/storage:/nakama/data \
          $REGISTRY_HOST/lila-games/nakama-server:$IMAGE_TAG

# -----------------------------------------------------
# Pipeline trigger
# -----------------------------------------------------
trigger:
  event:
    - tag