name: GitHub Bot CI/CD

on:
  push:
    branches:
      - "main"
    paths:
      - "github-bot/**"
      - "docker/Dockerfile.ghbot"
      - ".github/workflows/github-bot.yml"
  workflow_dispatch:

permissions:
  contents: read

jobs:
  docker-push:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
    steps:
      - name: Checkout
        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
        with:
          persist-credentials: false

      - name: Log in to GHCR
        uses: docker/login-action@9780b0c442fbb1117ed29e0efdff1e18412f7567 # v3.3.0
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@c47758b77c9736f4b2ef4073d4d51994fabfe349 # v3.7.1

      - name: Build and push
        uses: docker/build-push-action@48aba3b46d1b1fec4febb7c5d0c644b249a11355 # v6.10.0
        with:
          context: .
          file: docker/Dockerfile.ghbot
          push: ${{ github.ref == 'refs/heads/main' }}
          provenance: true
          sbom: true
          tags: |
            ghcr.io/zkldi/tachi-ghbot:${{ github.sha }}
            ghcr.io/zkldi/tachi-ghbot:main
            ghcr.io/zkldi/tachi-ghbot:latest
          cache-from: type=gha,scope=${{ github.ref_name }}-github-bot
          cache-to: type=gha,mode=max,scope=${{ github.ref_name }}-github-bot

  deploy:
    runs-on: ubuntu-latest
    needs: [docker-push]
    if: ${{ github.ref == 'refs/heads/main' && (github.event_name == 'push' || github.event_name == 'workflow_dispatch') }}
    steps:
      - 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 updates
        env:
          TACHI_HOST: ${{ secrets.TACHI_HOST }}
        run: ssh "ci@${TACHI_HOST}" "/home/ci/tachi-deploy/swarm/scripts/deploy-ghbot.sh ${{ github.sha }}"