name: Daily Security Audit

on:
  schedule:
    # Runs at midnight IST (6:30 PM UTC previous day)
    - cron: "30 18 * * *"
  workflow_dispatch: # Allows manual triggering

jobs:
  security-audit:
    runs-on: ubuntu-latest
    defaults:
      run:
        working-directory: packages/browseros-agent

    steps:
      - name: Checkout code
        uses: actions/checkout@v6

      - name: Setup Bun
        uses: oven-sh/setup-bun@v2

      - name: Install dependencies
        run: bun ci

      - name: Run security audit
        id: audit
        continue-on-error: true
        run: |
          # Run audit and capture output (skip the version line)
          bun audit --json 2>&1 | tail -n 1 > audit-results.json || true

          # Check if vulnerabilities exist
          VULN_COUNT=$(cat audit-results.json | bun -e "const data = JSON.parse(require('fs').readFileSync(0, 'utf-8')); console.log(Object.keys(data).reduce((sum, pkg) => sum + data[pkg].length, 0))")
          echo "vuln_count=$VULN_COUNT" >> $GITHUB_OUTPUT

      - name: Parse audit results
        id: parse
        if: always()
        run: |
          cat > parse-audit.ts << 'EOF'
          const fs = require('fs');
          const auditData = JSON.parse(fs.readFileSync('audit-results.json', 'utf-8'));

          // Collect all vulnerabilities from all packages
          const allVulns: any[] = [];
          let totalCount = 0;

          for (const [packageName, vulns] of Object.entries(auditData)) {
            if (Array.isArray(vulns)) {
              vulns.forEach((vuln: any) => {
                allVulns.push({ ...vuln, packageName });
                totalCount++;
              });
            }
          }

          if (totalCount === 0) {
            console.log(JSON.stringify({
              text: "✅ *Daily Security Audit - No Vulnerabilities Found*",
              blocks: [
                {
                  type: "section",
                  text: {
                    type: "mrkdwn",
                    text: "✅ *Daily Security Audit*\n\nNo vulnerabilities found in dependencies!"
                  }
                },
                {
                  type: "context",
                  elements: [
                    {
                      type: "mrkdwn",
                      text: `Repository: ${process.env.GITHUB_REPOSITORY} | Branch: ${process.env.GITHUB_REF_NAME}`
                    }
                  ]
                }
              ]
            }));
            process.exit(0);
          }

          // Count by severity
          const severityCounts = {
            critical: 0,
            high: 0,
            moderate: 0,
            low: 0
          };

          allVulns.forEach(vuln => {
            severityCounts[vuln.severity as keyof typeof severityCounts]++;
          });

          let message = `⚠️ *Daily Security Audit - ${totalCount} Vulnerabilit${totalCount === 1 ? 'y' : 'ies'} Found*\n\n`;
          message += `*Severity Breakdown:*\n`;
          message += `• Critical: ${severityCounts.critical}\n`;
          message += `• High: ${severityCounts.high}\n`;
          message += `• Moderate: ${severityCounts.moderate}\n`;
          message += `• Low: ${severityCounts.low}\n\n`;

          message += `*Top Vulnerabilities:*\n`;

          // Sort by severity
          const severityOrder = { critical: 0, high: 1, moderate: 2, low: 3 };
          allVulns.sort((a, b) =>
            severityOrder[a.severity as keyof typeof severityOrder] -
            severityOrder[b.severity as keyof typeof severityOrder]
          );

          allVulns.slice(0, 5).forEach(vuln => {
            const emoji = {
              critical: '🔴',
              high: '🟠',
              moderate: '🟡',
              low: '🟢'
            }[vuln.severity] || '⚪';

            message += `\n${emoji} *${vuln.title}*\n`;
            message += `   Package: \`${vuln.packageName}\`\n`;
            message += `   Severity: ${vuln.severity.toUpperCase()}\n`;
            message += `   Vulnerable: ${vuln.vulnerable_versions}\n`;
            if (vuln.cwe?.length) {
              message += `   CWE: ${vuln.cwe.join(', ')}\n`;
            }
            if (vuln.cvss?.score) {
              message += `   CVSS: ${vuln.cvss.score}\n`;
            }
            if (vuln.url) {
              message += `   <${vuln.url}|View Details>\n`;
            }
          });

          if (allVulns.length > 5) {
            message += `\n_...and ${allVulns.length - 5} more vulnerabilit${allVulns.length - 5 === 1 ? 'y' : 'ies'}_`;
          }

          const payload = {
            text: `⚠️ Security Audit: ${totalCount} vulnerabilit${totalCount === 1 ? 'y' : 'ies'} found`,
            blocks: [
              {
                type: "section",
                text: {
                  type: "mrkdwn",
                  text: message
                }
              },
              {
                type: "actions",
                elements: [
                  {
                    type: "button",
                    text: {
                      type: "plain_text",
                      text: "View Full Report"
                    },
                    url: `https://github.com/${process.env.GITHUB_REPOSITORY}/actions/runs/${process.env.GITHUB_RUN_ID}`
                  }
                ]
              },
              {
                type: "context",
                elements: [
                  {
                    type: "mrkdwn",
                    text: `Repository: ${process.env.GITHUB_REPOSITORY} | Branch: ${process.env.GITHUB_REF_NAME}`
                  }
                ]
              }
            ]
          };

          console.log(JSON.stringify(payload));
          EOF

          bun run parse-audit.ts > slack-payload.json

      - name: Send to Slack
        if: always()
        env:
          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}
        run: |
          curl -X POST \
            -H 'Content-Type: application/json' \
            -d @slack-payload.json \
            $SLACK_WEBHOOK_URL

      - name: Fail if vulnerabilities found
        if: steps.audit.outputs.vuln_count != '0'
        run: |
          echo "Security audit found vulnerabilities"
          exit 1