name: Docker Build & Publish

on:
  push:
    tags:
      - 'v*'
  workflow_dispatch:
    inputs:
      push_to_registry:
        description: 'Push to registry'
        required: true
        default: 'true'
        type: boolean

env:
  REGISTRY_DOCKERHUB: docker.io
  REGISTRY_GHCR: ghcr.io
  IMAGE_NAME: ${{ github.repository }}

jobs:
  # ===========================================================================
  # BUILD AND PUSH TO DOCKER HUB
  # ===========================================================================
  build-dockerhub:
    name: Build & Push (Docker Hub)
    runs-on: ubuntu-latest
    permissions:
      contents: read

    steps:
      - name: Checkout repository
        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: Log in to Docker Hub
        if: github.event_name != 'workflow_dispatch' || github.event.inputs.push_to_registry == 'true'
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY_DOCKERHUB }}
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Extract metadata (tags, labels)
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY_DOCKERHUB }}/${{ secrets.DOCKERHUB_USERNAME }}/mnemocore
          tags: |
            type=ref,event=branch
            type=ref,event=pr
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
            type=semver,pattern={{major}}
            type=sha

      - name: Build and push Docker image
        uses: docker/build-push-action@v5
        with:
          context: .
          platforms: linux/amd64,linux/arm64
          push: ${{ github.event_name != 'workflow_dispatch' || github.event.inputs.push_to_registry == 'true' }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=gha
          cache-to: type=gha,mode=max

  # ===========================================================================
  # BUILD AND PUSH TO GITHUB CONTAINER REGISTRY
  # ===========================================================================
  build-ghcr:
    name: Build & Push (GHCR)
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write

    steps:
      - name: Checkout repository
        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: Log in to GitHub Container Registry
        if: github.event_name != 'workflow_dispatch' || github.event.inputs.push_to_registry == 'true'
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY_GHCR }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract metadata (tags, labels)
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY_GHCR }}/${{ env.IMAGE_NAME }}
          tags: |
            type=ref,event=branch
            type=ref,event=pr
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
            type=semver,pattern={{major}}
            type=sha

      - name: Build and push Docker image
        uses: docker/build-push-action@v5
        with:
          context: .
          platforms: linux/amd64,linux/arm64
          push: ${{ github.event_name != 'workflow_dispatch' || github.event.inputs.push_to_registry == 'true' }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=gha
          cache-to: type=gha,mode=max

      - name: Generate artifact attestation
        if: github.event_name != 'workflow_dispatch' || github.event.inputs.push_to_registry == 'true'
        uses: actions/attest-build-provenance@v1
        with:
          subject-name: ${{ env.REGISTRY_GHCR }}/${{ env.IMAGE_NAME }}
          subject-digest: ${{ steps.push.outputs.digest }}
          push-to-registry: true