name: Docker Image Build and Analysis

on:
  schedule:
    - cron: "0 0 * * *"  # Schedule the workflow to run daily at midnight (UTC time). Adjust the time if needed.
  workflow_dispatch:  # Manual run trigger
    inputs:
      trigger-build:
        description: 'Trigger a manual build and push'
        default: 'true'

env:
  REGISTRY: docker.io
  IMAGE_NAME: ${{ github.repository }}
  SHA: ${{ github.event.pull_request.head.sha || github.event.after }}

jobs:
  build-and-analyze:
    runs-on: ubuntu-latest

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

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v2

      - name: Log in to Docker Hub
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
          
      - name: Extract Docker metadata
        id: meta
        uses: docker/metadata-action@v4.4.0
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          labels: |
            org.opencontainers.image.revision=${{ env.SHA }}
          tags: |
            type=edge,branch=$repo.default_branch
            type=semver,pattern=v{{version}}
            type=sha,prefix=,suffix=,format=short

      - name: Build and push Docker image
        id: build-and-push
        uses: docker/build-push-action@v4.0.0
        with:
          context: .
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=gha
          cache-to: type=gha,mode=max
          
      - name: Docker Scout
        id: docker-scout
        if: ${{ github.event_name == 'pull_request' }}
        uses: docker/scout-action@dd36f5b0295baffa006aa6623371f226cc03e506
        with:
          command: cves
          image: ${{ steps.meta.outputs.tags }}
          exit-code: true

      - name: Create build summary
        if: ${{ always() }}
        uses: actions/github-script@v6
        with:
          script: |
            const summary = `
            ### Docker Image Build and Analysis Summary
            
            - **Image Name:** ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
            - **Commit SHA:** ${{ env.SHA }}
            - **Build Status:** ${{ job.status }}
            - **Docker Scout Results:**
              - **CVE Analysis:** ${{ steps.docker-scout.outputs.result || 'No results' }}
            `;
            
            const comment = {
              body: summary
            };

            if (process.env.GITHUB_EVENT_NAME === 'pull_request') {
              const prNumber = process.env.GITHUB_REF.split('/')[2];
              await github.rest.issues.createComment({
                issue_number: prNumber,
                owner: context.repo.owner,
                repo: context.repo.repo,
                ...comment
              });
            } else {
              await github.rest.repos.createCommitStatus({
                owner: context.repo.owner,
                repo: context.repo.repo,
                sha: process.env.GITHUB_SHA,
                state: job.status === 'success' ? 'success' : 'failure',
                description: 'Docker image build and analysis complete',
                context: 'docker-build'
              });
            }
          env:
            GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}