name: Compile LaTeX

on:
  push:
    branches:
      - main
    paths: [
      "src/**", 
      .github/update_readme.py, 
      .github/read_metadata.py, 
      .github/workflows/compile.yml, 
      compile.sh
    ]

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  compile:
    name: Compile notes
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repo
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Checkout current pdfs branch
        uses: actions/checkout@v4
        with:
          ref: pdfs
          path: .currpdfs


      - name: Prepare output directory
        run: |
          mkdir ${GITHUB_WORKSPACE}/.compiled
          cp ${GITHUB_WORKSPACE}/LICENSE-pdf ${GITHUB_WORKSPACE}/.compiled/LICENSE

      - name: Compile
        run: |
          docker pull ghcr.io/notxia/unibo-ai-notes:main
          docker run -v ${GITHUB_WORKSPACE}:/notes ghcr.io/notxia/unibo-ai-notes:main

      - name: Generate README
        run: |
          cp README.md .compiled/README.md
          python3 ${GITHUB_WORKSPACE}/.github/update_readme.py \
            --src-path ${GITHUB_WORKSPACE}/src \
            --readme-path ${GITHUB_WORKSPACE}/.compiled/README.md \
            --gh-link https://raw.githubusercontent.com/NotXia/unibo-ai-notes/pdfs

      - name: Move to pdfs branch
        uses: s0/git-publish-subdir-action@develop
        env:
          REPO: self
          BRANCH: pdfs
          FOLDER: .compiled
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          COMMIT_NAME: "github-actions[bot]"
          COMMIT_EMAIL: "github-actions[bot]@users.noreply.github.com"
          MESSAGE: "🤖 Hello human, trying to not break anything ({sha})"
          SKIP_EMPTY_COMMITS: true