name: Build PDF
on:
  push:
    branches: [ main ]
    paths:
      - 'paper/**'
      - '.github/**'
  pull_request:
    paths:
      - 'paper/**'
      - '.github/**'
jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Compile LaTeX document
        uses: xu-cheng/latex-action@v3
        with:
          root_file: main.tex
          working_directory: paper/src
          args: -pdf -interaction=nonstopmode -file-line-error -outdir=../build
          pre_compile: bash ../concat_code.sh
      - name: Upload PDF
        uses: actions/upload-artifact@v4
        with:
          name: thesis-pdf
          path: paper/build/main.pdf

      - name: Deploy PDF to GitHub Pages
        if: github.event_name == 'push' && github.ref == 'refs/heads/main'
        run: |
          # Copy PDF to docs directory for GitHub Pages
          mkdir -p docs/static/pdfs
          cp paper/build/main.pdf docs/static/pdfs/thesis.pdf

          # Configure git
          git config --local user.email "github-actions[bot]@users.noreply.github.com"
          git config --local user.name "github-actions[bot]"

          # Commit and push if there are changes
          git add docs/static/pdfs/thesis.pdf
          git diff --quiet && git diff --staged --quiet || (git commit -m "Update thesis PDF [skip ci]" && git push)