name: Build and push image

on:
  push:
    branches:
      - main
  workflow_dispatch:

env:
  IMAGE: code.aneur.in/cloud/webfetch-mcpo-docker

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

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

      - name: Log in to code.aneur.in registry
        uses: docker/login-action@v3
        with:
          registry: code.aneur.in
          username: ${{ gitea.actor }}
          password: ${{ secrets.BUILD_API_TOKEN }}

      - name: Promote current "latest" to "previous"
        run: |
          if docker buildx imagetools inspect "$IMAGE:latest" >/dev/null 2>&1; then
            docker buildx imagetools create -t "$IMAGE:previous" "$IMAGE:latest"
          else
            echo "No existing :latest to promote; skipping."
          fi

      - name: Build and push
        uses: docker/build-push-action@v5
        with:
          context: .
          push: true
          tags: code.aneur.in/${{ gitea.repository }}:latest