name: Code Duplication Analysis

on:
  workflow_dispatch:
    inputs:
      path:
        description: 'Source path to scan (relative to repo root)'
        required: false
        default: 'src'
      min_lines:
        description: 'Minimum duplicated lines to report'
        required: false
        default: '6'
      min_tokens:
        description: 'Minimum duplicated tokens to report'
        required: false
        default: '50'
      top_n:
        description: 'Number of top findings to analyze with LLM'
        required: false
        default: '20'
      model:
        description: 'GitHub Models model to use for analysis'
        required: false
        default: 'openai/gpt-4.1-mini'
  schedule:
    # Run weekly on Monday at 8:00 UTC
    - cron: '0 8 * * 1'

permissions:
  contents: read
  issues: write
  models: read

jobs:
  scan-and-analyze:
    runs-on: ubuntu-latest
    timeout-minutes: 30
    steps:
      - name: Checkout repository
        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1

      - name: Setup Node.js
        uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
        with:
          node-version: '20'

      - name: Setup Python
        uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
        with:
          python-version: '3.12'

      - name: Install dependencies
        run: |
          npm install -g jscpd
          pip install openai

      - name: Run jscpd scan
        run: |
          mkdir -p artifacts/jscpd
          jscpd ${{ inputs.path || 'src' }} \
            --min-lines ${{ inputs.min_lines || '6' }} \
            --min-tokens ${{ inputs.min_tokens || '50' }} \
            --reporters json \
            --output artifacts/jscpd \
            --format csharp \
            --threshold 100 \
            --ignore "**/bin/**,**/obj/**,**/artifacts/**,**/*.Designer.cs,**/*.g.cs,**/*.xlf,**/*.resx,**/PublicAPI.*.txt,**/test/**,**/samples/**,**/formal-verification/**,**/src/Polyfills/**"

      - name: Analyze duplicates with GitHub Models
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          TOP_N: ${{ inputs.top_n || '20' }}
          MODEL: ${{ inputs.model || 'openai/gpt-4.1-mini' }}
        run: python .github/scripts/analyze-duplicates.py

      - name: Upload jscpd report
        uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2
        with:
          name: jscpd-report
          path: artifacts/jscpd/

      - name: Upload analysis report
        uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2
        with:
          name: duplication-analysis
          path: artifacts/jscpd/analysis-report.md