name: Deploy to GitHub Pages

on:
  push:
    branches:
      - docs
      - main
  workflow_dispatch:

jobs:
  build:
    name: Generate docs
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          ref: docs
      - name: Install Neovim
        shell: bash
        run: |
          mkdir -p /tmp/nvim
          wget -q https://github.com/neovim/neovim/releases/download/nightly/nvim.appimage -O /tmp/nvim/nvim.appimage
          cd /tmp/nvim
          chmod a+x ./nvim.appimage
          ./nvim.appimage --appimage-extract
          echo "/tmp/nvim/squashfs-root/usr/bin/" >> $GITHUB_PATH
      - name: Generate docs
        run: ./build.sh
      - name: panvimdoc
        uses: kdheepak/panvimdoc@main
        with:
          vimdoc: lazy.nvim
          version: "Neovim >= 0.8.0"
          description: "A modern plugin manager for Neovim"
          pandoc: "README.vim.md"
          demojify: false
          treesitter: true
      - name: Push changes
        uses: stefanzweifel/git-auto-commit-action@v5
        with:
          commit_message: "chore(build): auto-generate docs"
          commit_user_name: "github-actions[bot]"
          commit_user_email: "github-actions[bot]@users.noreply.github.com"
          commit_author: "github-actions[bot] <github-actions[bot]@users.noreply.github.com>"

  sync-docs:
    needs: build
    runs-on: ubuntu-latest

    steps:
      - name: Checkout docs branch
        uses: actions/checkout@v4
        with:
          ref: docs

      - name: Copy docs and README.md
        run: |
          mkdir -p /tmp/temp-docs
          cp -r doc/ /tmp/temp-docs/
          cp README.md /tmp/temp-docs/

      - name: Checkout main branch
        uses: actions/checkout@v4
        with:
          ref: main

      - name: Copy to main branch
        run: |
          cp -r /tmp/temp-docs/doc/ .
          cp /tmp/temp-docs/README.md .

      - name: Push changes
        uses: stefanzweifel/git-auto-commit-action@v5
        with:
          commit_message: "chore(build): auto-generate docs"
          commit_user_name: "github-actions[bot]"
          commit_user_email: "github-actions[bot]@users.noreply.github.com"
          commit_author: "github-actions[bot] <github-actions[bot]@users.noreply.github.com>"

  docusaurus:
    name: Build Docusaurus
    needs: build
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
          ref: docs
      - uses: pnpm/action-setup@v4
      - uses: actions/setup-node@v4
        with:
          node-version: 18
          cache: pnpm

      - name: Install dependencies
        run: pnpm install --frozen-lockfile
      - name: Build website
        run: pnpm build

      - name: Upload Build Artifact
        uses: actions/upload-pages-artifact@v3
        with:
          path: build

  deploy:
    name: Deploy to GitHub Pages
    needs: docusaurus

    # Grant GITHUB_TOKEN the permissions required to make a Pages deployment
    permissions:
      pages: write # to deploy to Pages
      id-token: write # to verify the deployment originates from an appropriate source

    # Deploy to the github-pages environment
    environment:
      name: github-pages
      url: ${{ steps.deployment.outputs.page_url }}

    runs-on: ubuntu-latest
    steps:
      - name: Deploy to GitHub Pages
        id: deployment
        uses: actions/deploy-pages@v4