name: Deploy Docs

on:
  push:
    branches: ["main"]

jobs:
  deploy:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4

      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: "3.11"

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

      - name: Build
        run: mkdocs build --strict

      - name: Deploy
        env:
          SSH_DEPLOY_KEY: ${{ secrets.SSH_DEPLOY_KEY }}
          SERVER_USER: ${{ secrets.SERVER_USER }}
          SERVER_HOST: ${{ secrets.SERVER_HOST }}
        run: |
          mkdir -p ~/.ssh
          echo "$SSH_DEPLOY_KEY" > ~/.ssh/deploy_key
          chmod 600 ~/.ssh/deploy_key
          ssh-keyscan -H $SERVER_HOST >> ~/.ssh/known_hosts

          # Clear old files on server
          ssh -i ~/.ssh/deploy_key $SERVER_USER@$SERVER_HOST \
            "rm -rf /var/www/foreignthon-docs/* && mkdir -p /var/www/foreignthon-docs"

          # Copy built site
          scp -i ~/.ssh/deploy_key -r site/* \
            $SERVER_USER@$SERVER_HOST:/var/www/foreignthon-docs/