name: Nightly

# Trunk-based: nightly always builds main — the release-branch discovery
# from the old release-centric flow is gone (it pinned nightlies to the
# highest release/v* branch forever, even after it shipped). Stabilization
# builds from release/** come from rc.yml instead.
on:
  schedule:
    - cron: '0 23 * * *'
  workflow_dispatch:

permissions:
  contents: read

jobs:
  build-docker:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write

    steps:
      - uses: actions/checkout@v4
        with:
          persist-credentials: false

      - name: Get date
        id: date
        run: echo "date=$(date -u +%Y%m%d)" >> "$GITHUB_OUTPUT"

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

      - name: Log in to GHCR
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build and push Docker image
        uses: docker/build-push-action@v6
        with:
          context: .
          platforms: linux/amd64,linux/arm64
          push: true
          tags: |
            ghcr.io/got-feedback/feedback:nightly
            ghcr.io/got-feedback/feedback:nightly-${{ steps.date.outputs.date }}
          cache-from: type=gha
          cache-to: type=gha,mode=max