name: Docs CI/CD

on:
  push:
    branches:
      - "main"
    paths:
      - "docs/**"
      - ".github/workflows/docs.yml"
  workflow_dispatch:

permissions:
  contents: read

jobs:
  deploy:
    runs-on: ubuntu-latest
    if: ${{ github.ref == 'refs/heads/main' && (github.event_name == 'push' || github.event_name == 'workflow_dispatch') }}
    steps:
      - name: Checkout
        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
        with:
          persist-credentials: false

      - name: Install rsync
        run: sudo apt-get update && sudo apt-get install -y rsync

      - name: Build Container
        run: docker build . -t docs -f Dockerfile.docs

      - name: Build Docs
        run: docker run -v ./site:/site --entrypoint="mkdocs" docs build

      - name: Enable SSH
        env:
          SSH_PRIVATE_KEY: ${{ secrets.SSH_PRIVATE_KEY }}
          SSH_KNOWN_HOSTS: ${{ secrets.SSH_KNOWN_HOSTS }}
        run: |
          mkdir -p ~/.ssh
          printf '%s' "$SSH_PRIVATE_KEY" > ~/.ssh/id_rsa
          chmod 600 ~/.ssh/id_rsa
          printf '%s' "$SSH_KNOWN_HOSTS" > ~/.ssh/known_hosts

      - name: Deploy docs
        env:
          TACHI_HOST: ${{ secrets.TACHI_HOST }}
        run: rsync --recursive --compress --delete --progress ./site/. "ci@${TACHI_HOST}:tachi-docs"