deploy.yml

name: Build, Test and Deploy Discord Bot to VPS

on:
  workflow_dispatch: # Manual trigger only
  # Uncomment below when VPS is ready:
  # push:
  #   branches: [ "main" ]
  #   paths-ignore:
  #     - 'docs/**'
  #     - '.gitignore'
  #     - 'LICENSE'

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}

jobs:
  build-test-deploy:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write

    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Set up Node
        uses: actions/setup-node@v4
        id: setup-node
        with:
          node-version-file: .nvmrc
      
      - name: Store Node version
        run: |
          NODE_VERSION="${{ steps.setup-node.outputs.node-version }}"
          echo "NODE_VERSION=${NODE_VERSION#v}" >> $GITHUB_ENV

      - name: Install pnpm
        uses: pnpm/action-setup@v4
        with:
          version: 10.17.1

      - name: Get pnpm store directory
        shell: bash
        run: |
          echo "STORE_PATH=$(pnpm store path --silent)" >> $GITHUB_ENV

      - name: Setup pnpm cache
        uses: actions/cache@v4
        with:
          path: ${{ env.STORE_PATH }}
          key: ${{ runner.os }}-pnpm-store-${{ hashFiles('**/pnpm-lock.yaml') }}
          restore-keys: |
            ${{ runner.os }}-pnpm-store-

      - name: Install dependencies
        run: pnpm install --frozen-lockfile

      - name: Lint
        run: pnpm run lint

      - name: Build bot
        run: pnpm run build:ci

      - name: Run tests
        run: pnpm run test:ci

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Log in to GitHub Container Registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract metadata for Docker
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          tags: |
            type=sha,prefix={{branch}}-
            type=ref,event=branch
            type=raw,value=latest,enable={{is_default_branch}}
      
      - name: Log Step outputs
        run: |
          echo "Node version: ${{ steps.setup-node.outputs.node-version }}"
          echo "NODE_VERSION: ${{ env.NODE_VERSION }}"
          echo "Tags: ${{ steps.meta.outputs.tags }}"
          echo "Labels: ${{ steps.meta.outputs.labels }}"

      - name: Build and push Docker image
        uses: docker/build-push-action@v5
        with:
          context: .
          target: production
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=gha
          cache-to: type=gha,mode=max
          build-args: |
            NODE_VERSION=${{ env.NODE_VERSION }}

      - name: Deploy to VPS
        uses: appleboy/scp-action@v0.1.7
        with:
          host: ${{ secrets.VPS_HOST }}
          username: ${{ secrets.VPS_USER }}
          key: ${{ secrets.VPS_SSH_KEY }}
          source: "docker-compose.yml"
          target: "~/webdev-bot-deploy"
          strip_components: 0

      - name: Start containers on VPS
        uses: appleboy/ssh-action@v1.0.3
        with:
          host: ${{ secrets.VPS_HOST }}
          username: ${{ secrets.VPS_USER }}
          key: ${{ secrets.VPS_SSH_KEY }}
          script: |
            cd ~/webdev-bot-deploy
            
            # Create .env.local file with secrets
            cat > .env.local << EOF
            DISCORD_TOKEN=${{ secrets.DISCORD_TOKEN }}
            CLIENT_ID=${{ secrets.CLIENT_ID }}
            EOF
            
            # Set NODE_VERSION for docker-compose
            export NODE_VERSION=${{ env.NODE_VERSION }}
            
            # Login to GitHub Container Registry
            echo "${{ secrets.GITHUB_TOKEN }}" | docker login ghcr.io -u ${{ github.actor }} --password-stdin
            
            # Update docker-compose.yml to use the pre-built image
            cat > docker-compose.override.yml << EOF
            version: '3.8'
            services:
              bot-prod:
                image: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest
                build: null
            EOF
            
            # Pull the latest image and start
            docker compose --profile prod pull
            docker compose --profile prod up -d
            
            # Clean up old images
            docker image prune -af --filter "until=24h"