name: Release Docker Image

on:
  release:
    types: [published]

jobs:
  build-and-push:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

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

      - name: Extract version tag without 'v'
        id: set_tag
        run: echo "tag=${GITHUB_REF_NAME#v}" >> $GITHUB_OUTPUT

      - name: Build and push Docker image
        uses: docker/build-push-action@v5
        with:
          context: .
          file: ./Dockerfile
          push: true
          tags: |
            yhirose4dockerhub/cpp-httplib-server:latest
            yhirose4dockerhub/cpp-httplib-server:${{ steps.set_tag.outputs.tag }}