name: Security Scanning

on:
  push:
    branches: [ main, develop ]
  pull_request:
    branches: [ main, develop ]
  schedule:
    - cron: '0 2 * * *'  # Daily at 2 AM UTC

jobs:
  bandit-security-scan:
    name: Bandit Security Scan
    runs-on: ubuntu-latest
    strategy:
      matrix:
        directory:
          - apps/coordinator-api/src
          - cli/aitbc_cli
          - packages/py/aitbc-core/src
          - packages/py/aitbc-crypto/src
          - packages/py/aitbc-sdk/src
          - tests
    steps:
    - name: Checkout code
      uses: actions/checkout@v4

    - name: Set up Python
      uses: actions/setup-python@v5
      with:
        python-version: '3.13'

    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip
        pip install bandit[toml]

    - name: Run Bandit security scan
      run: |
        bandit -r ${{ matrix.directory }} -f json -o bandit-report-${{ matrix.directory }}.json
        bandit -r ${{ matrix.directory }} -f text -o bandit-report-${{ matrix.directory }}.txt

    - name: Upload Bandit reports
      uses: actions/upload-artifact@v4
      with:
        name: bandit-report-${{ matrix.directory }}
        path: |
          bandit-report-${{ matrix.directory }}.json
          bandit-report-${{ matrix.directory }}.txt
        retention-days: 30

    - name: Comment PR with Bandit findings
      if: github.event_name == 'pull_request'
      uses: actions/github-script@v7
      with:
        script: |
          const fs = require('fs');
          try {
            const report = fs.readFileSync('bandit-report-${{ matrix.directory }}.txt', 'utf8');
            if (report.includes('No issues found')) {
              console.log('✅ No security issues found in ${{ matrix.directory }}');
            } else {
              github.rest.issues.createComment({
                issue_number: context.issue.number,
                owner: context.repo.owner,
                repo: context.repo.repo,
                body: `## 🔒 Bandit Security Scan Results\n\n**Directory**: ${{ matrix.directory }}\n\n\`\`\`\n${report}\n\`\`\`\n\nPlease review and address any security issues.`
              });
            }
          } catch (error) {
            console.log('Could not read Bandit report');
          }

  codeql-security-analysis:
    name: CodeQL Security Analysis
    runs-on: ubuntu-latest
    permissions:
      actions: read
      contents: read
      security-events: write
    strategy:
      matrix:
        language: [ 'python', 'javascript' ]
    steps:
    - name: Checkout repository
      uses: actions/checkout@v4

    - name: Initialize CodeQL
      uses: github/codeql-action/init@v3
      with:
        languages: ${{ matrix.language }}

    - name: Autobuild
      uses: github/codeql-action/autobuild@v3

    - name: Perform CodeQL Analysis
      uses: github/codeql-action/analyze@v3

  dependency-security-scan:
    name: Dependency Security Scan
    runs-on: ubuntu-latest
    steps:
    - name: Checkout code
      uses: actions/checkout@v4

    - name: Set up Python
      uses: actions/setup-python@v5
      with:
        python-version: '3.13'

    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip
        pip install safety

    - name: Run Safety security scan
      run: |
        safety check --json --output safety-report.json
        safety check --output safety-report.txt

    - name: Set up Node.js
      uses: actions/setup-node@v4
      with:
        node-version: '18'
        cache: 'npm'

    - name: Run npm audit
      run: |
        cd apps/explorer-web && npm audit --json > ../npm-audit-report.json || true
        cd ../.. && cd website && npm audit --json > ../npm-audit-website.json || true

    - name: Upload dependency reports
      uses: actions/upload-artifact@v4
      with:
        name: dependency-security-reports
        path: |
          safety-report.json
          safety-report.txt
          npm-audit-report.json
          npm-audit-website.json
        retention-days: 30

  container-security-scan:
    name: Container Security Scan
    runs-on: ubuntu-latest
    if: contains(github.event.head_commit.modified, 'Dockerfile') || contains(github.event.head_commit.modified, 'docker')
    steps:
    - name: Checkout code
      uses: actions/checkout@v4

    - name: Run Trivy vulnerability scanner
      uses: aquasecurity/trivy-action@master
      with:
        scan-type: 'fs'
        scan-ref: '.'
        format: 'sarif'
        output: 'trivy-results.sarif'

    - name: Upload Trivy scan results to GitHub Security tab
      uses: github/codeql-action/upload-sarif@v3
      with:
        sarif_file: 'trivy-results.sarif'

  ossf-scorecard:
    name: OSSF Scorecard
    runs-on: ubuntu-latest
    permissions:
      security-events: write
      id-token: write
      actions: read
      contents: read
    steps:
    - name: Checkout code
      uses: actions/checkout@v4
      with:
        persist-credentials: false

    - name: Run OSSF Scorecard
      uses: ossf/scorecard-action@v2.3.3
      with:
        results_file: results.sarif
        results_format: sarif

    - name: Upload OSSF Scorecard results to GitHub Security tab
      uses: github/codeql-action/upload-sarif@v3
      with:
        sarif_file: results.sarif

  security-summary:
    name: Security Summary Report
    runs-on: ubuntu-latest
    needs: [bandit-security-scan, codeql-security-analysis, dependency-security-scan]
    if: always()
    steps:
    - name: Download all artifacts
      uses: actions/download-artifact@v4

    - name: Generate security summary
      run: |
        echo "# 🔒 Security Scan Summary" > security-summary.md
        echo "" >> security-summary.md
        echo "Generated on: $(date)" >> security-summary.md
        echo "" >> security-summary.md
        echo "## Scan Results" >> security-summary.md
        echo "" >> security-summary.md
        
        # Check Bandit results
        if [ -d "bandit-report-apps/coordinator-api/src" ]; then
          echo "### Bandit Security Scan" >> security-summary.md
          echo "- ✅ Completed for all directories" >> security-summary.md
          echo "" >> security-summary.md
        fi
        
        # Check CodeQL results
        echo "### CodeQL Analysis" >> security-summary.md
        echo "- ✅ Completed for Python and JavaScript" >> security-summary.md
        echo "" >> security-summary.md
        
        # Check Dependency results
        if [ -f "dependency-security-reports/safety-report.txt" ]; then
          echo "### Dependency Security Scan" >> security-summary.md
          echo "- ✅ Python dependencies scanned" >> security-summary.md
          echo "- ✅ npm dependencies scanned" >> security-summary.md
          echo "" >> security-summary.md
        fi
        
        echo "## Recommendations" >> security-summary.md
        echo "1. Review any high-severity findings immediately" >> security-summary.md
        echo "2. Update dependencies with known vulnerabilities" >> security-summary.md
        echo "3. Address security best practice violations" >> security-summary.md
        echo "4. Schedule regular security reviews" >> security-summary.md

    - name: Upload security summary
      uses: actions/upload-artifact@v4
      with:
        name: security-summary
        path: security-summary.md
        retention-days: 90

    - name: Comment PR with security summary
      if: github.event_name == 'pull_request'
      uses: actions/github-script@v7
      with:
        script: |
          const fs = require('fs');
          try {
            const summary = fs.readFileSync('security-summary.md', 'utf8');
            github.rest.issues.createComment({
              issue_number: context.issue.number,
              owner: context.repo.owner,
              repo: context.repo.repo,
              body: summary
            });
          } catch (error) {
            console.log('Could not read security summary');
          }