name: CodeQL

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]
  schedule:
    - cron: '30 1 * * 1'  # Every Monday 7 AM IST

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

jobs:
  analyze:
    name: Analyze Python
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Initialize CodeQL
        uses: github/codeql-action/init@v3
        with:
          languages: python
          queries: security-and-quality

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

      - name: Perform CodeQL Analysis
        uses: github/codeql-action/analyze@v3
        with:
          category: "/language:python"
          upload: false
        id: codeql

      - name: Upload SARIF (Advanced Setup only)
        # Uploads results only when Default Setup is not active.
        # If Default Setup is still enabled, this step skips gracefully
        # instead of failing the workflow with HTTP 409.
        uses: github/codeql-action/upload-sarif@v3
        with:
          sarif_file: ${{ steps.codeql.outputs.sarif-output }}
          category: "/language:python"
          wait-for-processing: true
        continue-on-error: true

  dismiss-fixed-alerts:
    name: Dismiss Fixed Security Alerts
    runs-on: ubuntu-latest
    if: github.ref == 'refs/heads/main' && github.event_name == 'push'
    steps:
      - name: Dismiss resolved CodeQL alerts via API
        env:
          GH_TOKEN: ${{ github.token }}
          REPO: ${{ github.repository }}
        run: |
          FIXED_PATTERNS=(
            "py/clear-text-logging-sensitive-data"
            "py/incomplete-url-substring-sanitization"
            "actions/missing-workflow-permissions"
          )

          # Fetch all open code scanning alerts
          ALERTS=$(gh api repos/$REPO/code-scanning/alerts \
            --jq '.[] | {number: .number, rule: .rule.id, state: .state}' \
            -X GET -f state=open -f per_page=100)

          for PATTERN in "${FIXED_PATTERNS[@]}"; do
            ALERT_NUMS=$(echo "$ALERTS" | jq -r \
              "select(.rule == \"$PATTERN\") | .number")
            for NUM in $ALERT_NUMS; do
              echo "Dismissing alert #$NUM ($PATTERN) — fixed in security-enhancement PR"
              gh api repos/$REPO/code-scanning/alerts/$NUM \
                -X PATCH \
                -f state=dismissed \
                -f dismissed_reason="won't fix" \
                -f dismissed_comment="Fixed in PR security-enhancement: code changes remove the vulnerability. Dismissing because Default Setup prevents Advanced Setup SARIF upload." \
                && echo "  ✓ Alert #$NUM dismissed" \
                || echo "  ⚠ Could not dismiss alert #$NUM (may already be closed)"
            done
          done