name: CI

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]

env:
  GOPRIVATE: forgejo.riotpiao.com
  REGISTRY: forgejo.riotpiao.com
  IMAGE: forgejo.riotpiao.com/rock/poimen-workflows

jobs:
  test:
    name: Test
    runs-on: golang
    steps:
      - name: Install Node.js for actions runtime
        run: apt-get update && apt-get install -y nodejs

      - name: Checkout code
        uses: actions/checkout@v4

      - name: Download dependencies
        run: go mod download

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

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

      - name: Build binary
        run: CGO_ENABLED=0 GOOS=linux go build -o /tmp/poimen-worker ./cmd/worker

  build-push:
    name: Build & Push Image
    needs: test
    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
    runs-on: golang
    steps:
      - name: Install Node.js and Docker
        run: |
          apt-get update
          apt-get install -y nodejs docker.io

      - name: Checkout code
        uses: actions/checkout@v4

      - name: Get short SHA
        id: sha
        run: |
          SHORT_SHA=$(git rev-parse --short HEAD)
          echo "short_sha=${SHORT_SHA}" >> $GITHUB_OUTPUT

      - name: Pre-verify Docker, Registry, and Credentials
        run: |
          echo "=== Docker Daemon Check ==="
          if ! docker version &>/dev/null; then
            echo "❌ FAILED: Docker daemon not accessible"
            exit 1
          fi
          echo "✓ Docker daemon is running"
          docker version --format "Engine: {{.Server.Version}}"
          echo ""
          echo "=== Registry Credentials Check ==="
          if [ -z "${REGISTRY_USER}" ] || [ -z "${REGISTRY_TOKEN}" ]; then
            echo "❌ FAILED: FORGEJO_REGISTRY_USER or FORGEJO_REGISTRY_TOKEN not set"
            exit 1
          fi
          echo "✓ Registry credentials are set"
          echo ""
          echo "=== Registry Login Test ==="
          if ! echo "${REGISTRY_TOKEN}" | docker login "${REGISTRY}" --username "${REGISTRY_USER}" --password-stdin &>/dev/null; then
            echo "❌ FAILED: Registry login failed - credentials may be invalid"
            exit 1
          fi
          echo "✓ Registry login successful"
          docker logout "${REGISTRY}" &>/dev/null || true
          echo ""
          echo "=== Dockerfile Check ==="
          if [ ! -f Dockerfile ]; then
            echo "❌ FAILED: Dockerfile not found"
            exit 1
          fi
          echo "✓ Dockerfile exists"
          echo ""
          echo "=== All pre-checks passed ==="
        env:
          REGISTRY_USER: ${{ secrets.FORGEJO_REGISTRY_USER }}
          REGISTRY_TOKEN: ${{ secrets.FORGEJO_REGISTRY_TOKEN }}

      - name: Registry login
        run: |
          echo "${REGISTRY_TOKEN}" | docker login "${REGISTRY}" \
            --username "${REGISTRY_USER}" --password-stdin
        env:
          REGISTRY_USER: ${{ secrets.FORGEJO_REGISTRY_USER }}
          REGISTRY_TOKEN: ${{ secrets.FORGEJO_REGISTRY_TOKEN }}

      - name: Build Docker image
        run: |
          docker build --no-cache \
            -t "${IMAGE}:${{ steps.sha.outputs.short_sha }}" \
            -t "${IMAGE}:latest" \
            .

      - name: Push Docker image
        run: |
          docker push "${IMAGE}:${{ steps.sha.outputs.short_sha }}"
          docker push "${IMAGE}:latest"
          echo "✓ Image pushed: ${IMAGE}:${{ steps.sha.outputs.short_sha }}"

      - name: Prune unused images
        run: docker image prune -a --force 2>&1 | tail -3 || true