name: Publish

on:
  push:
    branches:
      - main

jobs:
  build-push:
    name: Test, build, and push image
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Set up Go
        uses: actions/setup-go@v5
        with:
          go-version-file: go.mod

      - name: Check formatting
        run: |
          files="$(gofmt -l .)"
          if [ -n "$files" ]; then
            echo "The following files need gofmt:"
            echo "$files"
            exit 1
          fi

      - name: Vet
        run: go vet ./...

      - name: Test
        run: go test ./...

      - name: Read version
        run: |
          version="$(tr -d '[:space:]' < VERSION)"
          if [ -z "$version" ]; then
            echo "VERSION file is empty"
            exit 1
          fi
          echo "VERSION=$version" >> "$GITHUB_ENV"
          echo "IMAGE=k3crpi.jumpingcrab.com:5000/sabisan:$version" >> "$GITHUB_ENV"

      - name: Log in to registry
        run: |
          echo "${{ secrets.REGISTRY_PASSWORD }}" | docker login k3crpi.jumpingcrab.com \
            --username "${{ secrets.REGISTRY_USERNAME }}" \
            --password-stdin

      - name: Build image
        run: docker build --pull --tag "$IMAGE" .

      - name: Push image
        run: docker push "$IMAGE"