name: Docker

on:
  push:
    tags:
      - 'v*'

permissions:
  contents: read

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

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3

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

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

      - name: Extract version from tag
        id: version
        run: echo "version=${GITHUB_REF#refs/tags/v}" >> $GITHUB_OUTPUT

      - name: Build and push
        uses: docker/build-push-action@v6
        with:
          context: .
          push: true
          build-args: |
            OBSCURA_VERSION=${{ steps.version.outputs.version }}
          tags: |
            ${{ secrets.DOCKERHUB_USERNAME }}/obscura:${{ steps.version.outputs.version }}
            ${{ secrets.DOCKERHUB_USERNAME }}/obscura:latest
          platforms: linux/amd64,linux/arm64
          cache-from: type=gha
          cache-to: type=gha,mode=max