name: Deploy Docs to GitHub Pages

on:
  push:
    branches:
      - main
    paths:
      - "docs/**"
      - "mkdocs.yml"
      - "requirements.txt"
  workflow_dispatch:

permissions:
  contents: write
  pages: write
  id-token: write

concurrency:
  group: "pages"
  cancel-in-progress: true

jobs:
  deploy:
    name: Build & Deploy MkDocs
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0        # full history for git-revision-date

      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: "3.12"
          cache: pip

      - name: Install dependencies
        run: pip install -r requirements.txt

      - name: Build & deploy
        run: mkdocs gh-deploy --force --clean --verbose
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}