name: Bot - Security Scan

on:
  push:
    branches: [main, master, develop]
  pull_request:
    branches: [main, master, develop]
  schedule:
    - cron: '0 0 * * 0'  # Weekly on Sunday

permissions:
  contents: read
  security-events: write
  issues: write

jobs:
  security-scan:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Secret scanning
        uses: actions/github-script@v7
        with:
          script: |
            const fs = require('fs');
            const path = require('path');

            const secretPatterns = [
              { name: 'API Key', pattern: /(?:api[_-]?key|apikey)[\s:=]+['"]?([a-zA-Z0-9_-]{20,})['"]?/gi },
              { name: 'Password', pattern: /(?:password|passwd|pwd)[\s:=]+['"]?([^\s'"]{8,})['"]?/gi },
              { name: 'Token', pattern: /(?:token|auth[_-]?token)[\s:=]+['"]?([a-zA-Z0-9_-]{20,})['"]?/gi },
              { name: 'Private Key', pattern: /-----BEGIN (?:RSA |EC )?PRIVATE KEY-----/gi },
              { name: 'AWS Key', pattern: /AKIA[0-9A-Z]{16}/gi },
              { name: 'GitHub Token', pattern: /gh[ps]_[a-zA-Z0-9]{36,}/gi }
            ];

            const findings = [];

            function scanDirectory(dir) {
              const entries = fs.readdirSync(dir, { withFileTypes: true });

              for (const entry of entries) {
                const fullPath = path.join(dir, entry.name);

                // Skip node_modules, .git, etc.
                if (entry.name.startsWith('.') || entry.name === 'node_modules') {
                  continue;
                }

                if (entry.isDirectory()) {
                  scanDirectory(fullPath);
                } else if (entry.isFile()) {
                  try {
                    const content = fs.readFileSync(fullPath, 'utf8');

                    for (const { name, pattern } of secretPatterns) {
                      const matches = content.match(pattern);
                      if (matches) {
                        findings.push({
                          type: name,
                          file: fullPath,
                          count: matches.length
                        });
                      }
                    }
                  } catch (err) {
                    // Skip binary files
                  }
                }
              }
            }

            scanDirectory('.');

            if (findings.length > 0) {
              const message = `🚨 **Security Alert: Potential Secrets Detected**

${findings.map(f => `- **${f.type}** found in \`${f.file}\` (${f.count} occurrence${f.count > 1 ? 's' : ''})`).join('\n')}

⚠️ **Action Required:**
1. Verify if these are real secrets
2. If yes, rotate credentials immediately
3. Remove from git history
4. Use environment variables instead

cc: @${context.repo.owner}`;

              await github.rest.issues.create({
                owner: context.repo.owner,
                repo: context.repo.repo,
                title: '🚨 Security: Potential Secrets Detected',
                body: message,
                labels: ['security', 'priority:high']
              });

              core.setFailed('Potential secrets detected!');
            }

      - name: Dependency scan
        uses: actions/github-script@v7
        with:
          script: |
            const fs = require('fs');

            // Check for package.json
            if (fs.existsSync('package.json')) {
              const pkg = JSON.parse(fs.readFileSync('package.json', 'utf8'));
              const deps = { ...pkg.dependencies, ...pkg.devDependencies };

              const outdatedWarnings = [];

              // Known vulnerable package patterns (simplified)
              const knownVulnerable = ['event-stream@3.3.6', 'lodash@<4.17.21'];

              for (const [name, version] of Object.entries(deps)) {
                const fullDep = `${name}@${version}`;
                if (knownVulnerable.some(v => fullDep.includes(v))) {
                  outdatedWarnings.push(`⚠️ ${name}@${version} has known vulnerabilities`);
                }
              }

              if (outdatedWarnings.length > 0) {
                await github.rest.issues.create({
                  owner: context.repo.owner,
                  repo: context.repo.repo,
                  title: '🔒 Security: Vulnerable Dependencies Detected',
                  body: `**Vulnerable dependencies found:**\n\n${outdatedWarnings.join('\n')}\n\nPlease update to secure versions.`,
                  labels: ['security', 'dependencies']
                });
              }
            }

      - name: CodeQL Analysis
        uses: github/codeql-action/init@v3
        with:
          languages: javascript, python, typescript
        continue-on-error: true

      - name: Run CodeQL
        uses: github/codeql-action/analyze@v3
        continue-on-error: true

      - name: Log to memory
        run: |
          if [ -f ~/memory-system.sh ]; then
            ~/memory-system.sh log bot-action "security-scan" "Security scan completed for ${{ github.repository }}"
          fi