name: LaTeX Lint

on:
  push:
    branches:
      - main
      - dev
    paths:
      - 'latex/**/*.tex'
      - 'latex/main.tex'
  workflow_dispatch:
  
jobs:
  lint:
    runs-on: ubuntu-latest

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

      - name: Install chktex
        run: |
          sudo apt-get update
          sudo apt-get install -y chktex

      - name: Run chktex inside latex/
        working-directory: latex
        run: |
          TEX_FILES=$(find . -type f -name "*.tex")
          if [ -z "$TEX_FILES" ]; then
            echo "No .tex files found in latex/. Skipping lint."
            exit 0
          fi
          
          echo "🔍 Linting .tex files with chktex..."
          FAIL=0
          
          for f in $TEX_FILES; do
            echo "▶ Checking $f"
            # Run chktex and show output; capture error status
            if ! chktex "$f"; then
              echo "::warning file=$f::ChkTeX found issues in $f"
              FAIL=1
            fi
          done
          
          if [ $FAIL -ne 0 ]; then
            echo "::error::❌ Lint errors or warnings were found in one or more .tex files above."
            exit 1
          else
            echo "✅ All files passed chktex lint."
          fi