name: Blog

on:
  push:
    branches:
      - '*'
      - '!staging.tmp'
    tags:
      - '*'
  pull_request:
  schedule:
    - cron: '0 0 1/4 * *'   # every 4 days

jobs:
  build_site:
    name: "Zola Build"
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v1

    - name: 'Download Zola'
      run: curl -sL https://github.com/getzola/zola/releases/download/v0.19.0/zola-v0.19.0-x86_64-unknown-linux-gnu.tar.gz | tar zxv
    - name: 'Install Python Libraries'
      run: python -m pip install --user -r requirements.txt
      working-directory: "blog"

    - name: "Run before_build.py script"
      run: python before_build.py
      working-directory: "blog"
    - name: "Build Site"
      run: ../zola build
      working-directory: "blog"

    - name: Upload Generated Site
      uses: actions/upload-artifact@v4
      with:
        name: generated_site
        path: blog/public

  check_spelling:
    name: "Check Spelling"
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v1

    - name: Typo Check
      uses: crate-ci/typos@v1.1.9
      with:
        files: blog

  deploy_site:
    name: "Deploy Generated Site"
    runs-on: ubuntu-latest
    needs: [build_site, check_spelling]
    if: github.ref == 'refs/heads/main' && (github.event_name == 'push' || github.event_name == 'schedule')

    steps:
    - name: "Download Generated Site"
      uses: actions/download-artifact@v4
      with:
        name: generated_site

    - name: Setup SSH Keys and known_hosts
      run: |
          mkdir -p ~/.ssh
          ssh-keyscan github.com >> ~/.ssh/known_hosts
          ssh-agent -a $SSH_AUTH_SOCK > /dev/null
          ssh-add - <<< "$deploy_key"
          echo "SSH_AUTH_SOCK=$SSH_AUTH_SOCK" >> $GITHUB_ENV
      env:
        SSH_AUTH_SOCK: /tmp/ssh_agent.sock
        deploy_key: ${{ secrets.DEPLOY_SSH_KEY }}

    - name: "Clone blog_os_deploy Repo"
      run: git clone git@github.com:phil-opp/blog_os_deploy.git --branch gh-pages

    - name: "Set Up Git Identity"
      run: |
        git config --local user.name "GitHub Actions Deploy"
        git config --local user.email "github-actions-deploy@phil-opp.com"
      working-directory: "blog_os_deploy"

    - name: "Delete Old Content"
      run: "rm -r ./*"
      working-directory: "blog_os_deploy"

    - name: "Add New Content"
      run: cp -r generated_site/* blog_os_deploy

    - name: "Commit New Content"
      run: |
        git add .
        git commit --allow-empty -m "Deploy ${GITHUB_SHA}

        Deploy of commit https://github.com/phil-opp/blog_os/commit/${GITHUB_SHA}"
      working-directory: "blog_os_deploy"

    - name: "Show Changes"
      run: "git show"
      working-directory: "blog_os_deploy"

    - name: "Push Changes"
      run: "git push"
      working-directory: "blog_os_deploy"