name: Docker Build and Push

on:
  schedule:
    - cron: "43 0 * * *"
  push:
    branches: ["main"]
    tags: ["v*.*.*"]
  pull_request:
    branches: ["main"]

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}

jobs:
  pgbouncer:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
      id-token: write

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

      - name: Install cosign
        uses: sigstore/cosign-installer@v3

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

      - name: Log into registry ${{ env.REGISTRY }}
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract Docker metadata for pgbouncer
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}-pgbouncer

      - name: Build and push Docker image for pgbouncer
        id: build-and-push
        uses: docker/build-push-action@v6
        with:
          context: docker/pgbouncer
          file: docker/pgbouncer/Dockerfile
          push: ${{ github.event_name != 'pull_request' }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=gha,scope=pgbouncer
          cache-to: type=gha,scope=pgbouncer,mode=max

      - name: Sign the published Docker image for PgBouncer
        if: ${{ github.event_name != 'pull_request' }}
        env:
          TAGS: ${{ steps.meta.outputs.tags }}
          DIGEST: ${{ steps.build-and-push.outputs.digest }}
        run: echo "${TAGS}" | xargs -I {} cosign sign --yes "{}@${DIGEST}"