name: Nightly Build & Package
on:
  push:
    branches:
      - nightly
  schedule:
    # Daily at 09:00 UTC (4am EST / 5am EDT)
    - cron: '0 9 * * *'
  workflow_dispatch:

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

jobs:
  build-and-push-nightly:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
      id-token: write
    outputs:
      version: ${{ steps.meta.outputs.version }}
      tags: ${{ steps.meta.outputs.tags }}
      digest: ${{ steps.build.outputs.digest }}

    steps:
      - name: Checkout code
        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8  # v6.0.1
        with:
          fetch-depth: 0

      - name: Set up QEMU
        uses: docker/setup-qemu-action@c7c53464625b32c7a7e944ae62b3e17d2b600130  # v3.7.0

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@8d2750c68a42422c14e847fe6c8ac0403b4cbd6f  # v3.12.0

      - name: Log in to GitHub Container Registry
        uses: docker/login-action@5e57cd118135c172c3672efd75eb46360885c0ef  # v3.6.0
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract metadata
        id: meta
        uses: docker/metadata-action@c299e40c65443455700f0fdfc63efafe5b349051  # v5.10.0
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          tags: |
            type=raw,value=nightly
            type=raw,value=nightly-{{date 'YYYY-MM-DD'}}
            type=sha,prefix=nightly-,format=short
          labels: |
            org.opencontainers.image.title=Charon Nightly
            org.opencontainers.image.description=Nightly build of Charon

      - name: Build and push Docker image
        id: build
        uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83  # v6.18.0
        with:
          context: .
          platforms: linux/amd64,linux/arm64
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          build-args: |
            VERSION=nightly-${{ github.sha }}
          cache-from: type=gha
          cache-to: type=gha,mode=max
          provenance: true
          sbom: true

      - name: Generate SBOM
        uses: anchore/sbom-action@0b82b0b1a22399a1c542d4d656f70cd903571b5c  # v0.21.1
        with:
          image: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:nightly
          format: cyclonedx-json
          output-file: sbom-nightly.json

      - name: Upload SBOM artifact
        uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f  # v6.0.0
        with:
          name: sbom-nightly
          path: sbom-nightly.json
          retention-days: 30

  test-nightly-image:
    needs: build-and-push-nightly
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: read

    steps:
      - name: Checkout code
        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8  # v6.0.1

      - name: Log in to GitHub Container Registry
        uses: docker/login-action@5e57cd118135c172c3672efd75eb46360885c0ef  # v3.6.0
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Pull nightly image
        run: docker pull ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:nightly

      - name: Run container smoke test
        run: |
          docker run --name charon-nightly -d \
            -p 8080:8080 \
            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:nightly

          # Wait for container to start
          sleep 10

          # Check container is running
          docker ps | grep charon-nightly

          # Basic health check
          curl -f http://localhost:8080/health || exit 1

          # Cleanup
          docker stop charon-nightly
          docker rm charon-nightly

  build-nightly-release:
    needs: test-nightly-image
    runs-on: ubuntu-latest
    permissions:
      contents: read

    steps:
      - name: Checkout code
        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8  # v6.0.1
        with:
          fetch-depth: 0

      - name: Set up Go
        uses: actions/setup-go@7a3fe6cf4cb3a834922a1244abfce67bcef6a0c5  # v6.2.0
        with:
          go-version: '1.25.6'

      - name: Set up Node.js
        uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238  # v6.2.0
        with:
          node-version: '24.13.0'

      - name: Set up Zig (for cross-compilation)
        uses: goto-bus-stop/setup-zig@abea47f85e598557f500fa1fd2ab7464fcb39406  # v2.2.1
        with:
          version: 0.11.0

      - name: Build frontend
        working-directory: ./frontend
        run: |
          npm ci
          npm run build

      - name: Run GoReleaser (snapshot mode)
        uses: goreleaser/goreleaser-action@e435ccd777264be153ace6237001ef4d979d3a7a  # v6.4.0
        with:
          distribution: goreleaser
          version: '~> v2'
          args: release --snapshot --skip=publish --clean
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - name: Upload nightly binaries
        uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f  # v6.0.0
        with:
          name: nightly-binaries
          path: dist/*
          retention-days: 30

  verify-nightly-supply-chain:
    needs: build-and-push-nightly
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: read
      security-events: write

    steps:
      - name: Checkout code
        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8  # v6.0.1

      - name: Download SBOM
        uses: actions/download-artifact@37930b1c2abaa49bbe596cd826c3c89aef350131  # v7.0.0
        with:
          name: sbom-nightly

      - name: Scan with Grype
        uses: anchore/scan-action@62b74fb7bb810d2c45b1865f47a77655621862a5  # v7.2.3
        with:
          sbom: sbom-nightly.json
          fail-build: false
          severity-cutoff: high

      - name: Scan with Trivy
        uses: aquasecurity/trivy-action@b6643a29fecd7f34b3597bc6acb0a98b03d33ff8  # 0.33.1
        with:
          image-ref: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:nightly
          format: 'sarif'
          output: 'trivy-nightly.sarif'

      - name: Upload Trivy results
        uses: github/codeql-action/upload-sarif@cdefb33c0f6224e58673d9004f47f7cb3e328b89  # v4.31.10
        with:
          sarif_file: 'trivy-nightly.sarif'
          category: 'trivy-nightly'

      - name: Check for critical CVEs
        run: |
          if grep -q "CRITICAL" trivy-nightly.sarif; then
            echo "❌ Critical vulnerabilities found in nightly build"
            exit 1
          fi
          echo "✅ No critical vulnerabilities found"