name: CI Failure Monitor

on:
  schedule:
    - cron: '*/30 * * * *' # Every 30 minutes
  workflow_dispatch:
    inputs:
      limit:
        description: 'Number of workflow runs to analyze (across all workflows)'
        required: false
        default: '800'
        type: string
      threshold:
        description: 'Alert threshold for consecutive failures'
        required: false
        default: '4'
        type: string

concurrency:
  group: ci-failure-monitor-${{ github.ref }}
  cancel-in-progress: true

permissions:
  contents: read
  actions: read

jobs:
  failure-analysis:
    if: github.repository == 'sgl-project/sglang' || github.event_name == 'pull_request'
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: '3.14'

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

      - name: Run Failure Analysis
        env:
          GITHUB_TOKEN: ${{ secrets.GH_PAT_FOR_NIGHTLY_CI_DATA }}
          PYTHONUNBUFFERED: 1
          PYTHONIOENCODING: utf-8
        run: |
          cd scripts/ci_monitor
          python ci_failures_analysis.py \
            --token $GITHUB_TOKEN \
            --limit ${{ inputs.limit || '800' }} \
            --threshold ${{ inputs.threshold || '4' }} \
            --output ci_failure_analysis_$(date +%Y%m%d_%H%M%S).json

      - name: Upload Analysis Results
        uses: actions/upload-artifact@v4
        with:
          name: ci-failure-analysis-${{ github.run_number }}
          path: |
            scripts/ci_monitor/ci_failure_analysis_*.json
          retention-days: 7