name: docs

on:
  push:
    branches:
      - main
    paths:
      - 'docs/**'
      - '.gitea/workflows/docs.yml'

vars:
  HUGO_VERSION: "0.128.2"
  GEEKDOC_VERSION: "v4.1.1"

jobs:
  deploy:
    name: Build and deploy docs
    runs-on: ubuntu-latest
    container:
      image: alpine:latest

    steps:
      - name: Install tools
        run: apk add --no-cache curl git tar

      - name: Checkout
        env:
          TOKEN: ${{ secrets.GITHUB_TOKEN }}
          SERVER_URL: ${{ github.server_url }}
          REPO: ${{ github.repository }}
        run: |
          git clone --depth 1 \
            "$(echo "$SERVER_URL" | sed "s|https://|https://oauth2:${TOKEN}@|")/${REPO}.git" .

      - name: Install Hugo
        env:
          HUGO_VERSION: ${{ vars.HUGO_VERSION }}
        run: |
          curl -sSL "https://github.com/gohugoio/hugo/releases/download/v${HUGO_VERSION}/hugo_${HUGO_VERSION}_Linux-64bit.tar.gz" \
            | tar xz -C /usr/local/bin hugo

      - name: Download Geekdoc theme
        env:
          GEEKDOC_VERSION: ${{ vars.GEEKDOC_VERSION }}
        run: |
          mkdir -p docs/themes/geekdoc
          curl -sSL "https://github.com/thegeeklab/hugo-geekdoc/releases/download/${GEEKDOC_VERSION}/hugo-geekdoc.tar.gz" \
            | tar xz -C docs/themes/geekdoc

      - name: Build
        run: hugo --source docs --destination public --minify

      - name: Deploy to pages branch
        env:
          TOKEN: ${{ secrets.GITHUB_TOKEN }}
          SERVER_URL: ${{ github.server_url }}
          REPO: ${{ github.repository }}
        run: |
          cd docs/public
          git init
          git config user.email "ci@git.k3nny.fr"
          git config user.name "Gitea CI"
          git add .
          git commit -m "deploy docs $(date +%Y-%m-%dT%H:%M:%SZ)"
          git push --force \
            "$(echo "$SERVER_URL" | sed "s|https://|https://oauth2:${TOKEN}@|")/${REPO}.git" \
            HEAD:gh-pages