name: Build

on:
  push:
    branches: ["main"]
    # Publish semver tags as releases.
    tags: ["v*.*.*"]
  pull_request:
    branches: ["main"]
  schedule:
    - cron: "0 1 * * *"
  workflow_dispatch:

env:
  # # Use docker.io for Docker Hub if empty
  REGISTRY: gitea.marijndoeve.nl
  # github.repository as <account>/<repo>
  IMAGE_NAME: ${{ gitea.repository }}

jobs:
  build:
    name: Build Image
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write

    steps:
      - name: Checkout repository
        uses: actions/checkout@v3

      # Workaround: https://gitea.com/docker/build-push-action/issues/461
      - name: Setup Docker buildx
        uses: docker/setup-buildx-action@v2

      # Login against a Docker registry except on PR
      # https://github.com/docker/login-action
      - name: Log into registry ${{ env.REGISTRY }}
        if: gitea.event_name != 'pull_request'
        uses: docker/login-action@v2
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ gitea.actor }}
          password: ${{ secrets.GITEA_TOKEN }}

      # Extract metadata (tags, labels) for Docker
      # https://github.com/docker/metadata-action
      # - name: Extract Docker metadata
      #   id: meta
      #   uses: docker/metadata-action@v4
      #   with:
      #     images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}

      # Build and push Docker image with Buildx (don't push on PR)
      # https://github.com/docker/build-push-action
      - name: Build and push Docker image
        id: build-and-push
        uses: docker/build-push-action@v3
        with:
          context: .
          file: docker/web/Containerfile
          push: ${{ gitea.event_name != 'pull_request' }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=gha
          cache-to: type=gha,mode=max