name: Build Docker Image

on:
  push:
    branches:
      - main
    tags:
      - 'v*.*.*'

jobs:
  build:
    runs-on: docker
    if: github.event_name == 'push' && (github.ref == 'refs/heads/main' || startsWith(github.ref, 'refs/tags/'))

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

      - name: Log in to Docker Hub
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}

      - name: Extract version tag
        id: version
        run: |
          if [[ "${GITHUB_REF}" == refs/tags/v* ]]; then
            echo "VERSION_TAG=${GITHUB_REF#refs/tags/}" >> $GITHUB_OUTPUT
          fi

      - name: Set image tags
        id: tags
        run: |
          IMAGE_NAME=${{ secrets.DOCKER_IMAGE_NAME }}
          TAGS="${IMAGE_NAME}:latest"
          if [ -n "${{ steps.version.outputs.VERSION_TAG }}" ]; then
            TAGS="$TAGS,${IMAGE_NAME}:${{ steps.version.outputs.VERSION_TAG }}"
          fi
          echo "tags=$TAGS" >> $GITHUB_OUTPUT

      - name: Build and push Docker image
        uses: docker/build-push-action@v5
        with:
          context: .
          push: true
          tags: ${{ steps.tags.outputs.tags }}

  notify:
    needs: build
    runs-on: docker
    if: always()
    
    steps:
      - name: Notify build status
        run: |
          if [ "${{ needs.build.result }}" == "success" ]; then
            echo "✅ Docker image built and pushed successfully"
            echo "🏷️  Tags: ${{ needs.build.outputs.tags }}"
          else
            echo "❌ Docker image build failed"
            exit 1
          fi