# .github/workflows/build-and-deploy.yml

name: Build and Deploy

on:
  push:
    branches: ["main", "rust-dev"]

jobs:
  build-and-deploy:
    permissions:
      contents: read
      packages: write

    name: Build Images and Deploy to Server
    runs-on: ubuntu-latest

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

      - name: Set repo name to lowercase
        id: repo_name
        run: echo "name=$(echo '${{ github.repository }}' | tr '[:upper:]' '[:lower:]')" >> $GITHUB_OUTPUT

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

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

      - name: Create web-app .env file
        run: echo 'GEMINI_API_KEY=${{ secrets.GEMINI_API_KEY }}' > web-app/.env

      - name: Build and push web-app image 🚀
        uses: docker/build-push-action@v6
        with:
          context: ./web-app
          push: true
          tags: ghcr.io/${{ steps.repo_name.outputs.name }}/web-app:${{ github.sha }}
          cache-from: type=gha,scope=web-app
          cache-to: type=gha,mode=max,scope=web-app

      - name: Build and push Rust engine image ⚙️
        uses: docker/build-push-action@v6
        with:
          context: ./rust-engine
          push: true
          tags: ghcr.io/${{ steps.repo_name.outputs.name }}/rust-engine:${{ github.sha }}
          cache-from: type=gha,scope=rust-engine
          cache-to: type=gha,mode=max,scope=rust-engine

      - name: Ensure remote deploy directory exists
        uses: appleboy/ssh-action@v1.0.3
        with:
          host: ${{ secrets.SERVER_HOST }}
          username: ${{ secrets.SERVER_USERNAME }}
          key: ${{ secrets.SSH_PRIVATE_KEY }}
          script: |
            mkdir -p /home/github-actions/codered-astra

      - name: Upload compose files to server
        uses: appleboy/scp-action@v0.1.7
        with:
          host: ${{ secrets.SERVER_HOST }}
          username: ${{ secrets.SERVER_USERNAME }}
          key: ${{ secrets.SSH_PRIVATE_KEY }}
          source: "docker-compose.yml,docker-compose.prod.yml,rust-engine/demo-data"
          target: "/home/github-actions/codered-astra/"

      - name: Deploy to server via SSH ☁️
        uses: appleboy/ssh-action@v1.0.3
        env:
          RUNNER_GH_ACTOR: ${{ github.actor }}
          RUNNER_GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          host: ${{ secrets.SERVER_HOST }}
          username: ${{ secrets.SERVER_USERNAME }}
          key: ${{ secrets.SSH_PRIVATE_KEY }}
          # pass selected env vars to the remote shell so docker login works
          envs: RUNNER_GITHUB_TOKEN,RUNNER_GH_ACTOR
          debug: true
          script: |
            cd /home/github-actions/codered-astra
            chmod -R o+rX rust-engine/demo-data
            # wrapper to support both Docker Compose v2 and legacy v1
            compose() { docker compose "$@" || docker-compose "$@"; }
            # Log in to GHCR using the run's GITHUB_TOKEN so compose can pull images.
            if [ -n "$RUNNER_GITHUB_TOKEN" ] && [ -n "$RUNNER_GH_ACTOR" ]; then
              echo "$RUNNER_GITHUB_TOKEN" | docker login ghcr.io -u "$RUNNER_GH_ACTOR" --password-stdin || true
            fi
            export REPO_NAME_LOWER='${{ steps.repo_name.outputs.name }}'
            export GEMINI_API_KEY='${{ secrets.GEMINI_API_KEY }}'
            export MYSQL_DATABASE='${{ secrets.MYSQL_DATABASE }}'
            export MYSQL_USER='${{ secrets.MYSQL_USER }}'
            export MYSQL_PASSWORD='${{ secrets.MYSQL_PASSWORD }}'
            export MYSQL_ROOT_PASSWORD='${{ secrets.MYSQL_ROOT_PASSWORD }}'
            export IMAGE_TAG=${{ github.sha }}
            # Stop and remove old containers before pulling new images
            compose -f docker-compose.prod.yml down
            # Clear previous logs for a clean deployment log
            : > ~/astra-logs/astra-errors.log || true
            compose -f docker-compose.prod.yml pull
            compose -f docker-compose.prod.yml up -d
            # Security hygiene: remove GHCR credentials after pulling
            docker logout ghcr.io || true