name: Build and Deploy

on:
  push:
    branches:
      - main
  workflow_dispatch:

env:
  REGISTRY: ghcr.io
  IMAGE_PREFIX: ghcr.io/${{ github.repository }}

jobs:
  build:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
    strategy:
      fail-fast: false
      matrix:
        service:
          - name: web
            dockerfile: apps/web/Dockerfile
          - name: api
            dockerfile: apps/api/Dockerfile
          - name: ml
            dockerfile: apps/ml-service/Dockerfile
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

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

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

      - name: Extract metadata
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.IMAGE_PREFIX }}/${{ matrix.service.name }}
          tags: |
            type=ref,event=branch
            type=sha

      - name: Build and push image
        uses: docker/build-push-action@v5
        with:
          context: .
          file: ${{ matrix.service.dockerfile }}
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=gha,scope=${{ matrix.service.name }}
          cache-to: type=gha,mode=max,scope=${{ matrix.service.name }}

  deploy:
    needs: build
    runs-on: ubuntu-latest
    if: github.ref == 'refs/heads/main'
    permissions:
      contents: read
      packages: read
    steps:
      - name: Validate deploy secrets
        if: ${{ !secrets.VPS_HOST || !secrets.VPS_USER || !secrets.VPS_SSH_KEY }}
        run: |
          echo "Missing deploy secrets: VPS_HOST, VPS_USER, VPS_SSH_KEY." >&2
          exit 1

      - name: Deploy to VPS
        uses: appleboy/ssh-action@v1.0.3
        with:
          host: ${{ secrets.VPS_HOST }}
          username: ${{ secrets.VPS_USER }}
          key: ${{ secrets.VPS_SSH_KEY }}
          passphrase: ${{ secrets.VPS_SSH_PASSPHRASE }}
          port: ${{ secrets.VPS_PORT || 22 }}
          script: |
            set -e
            cd /opt/ZeaVis-Edu
            git pull origin main

            cat > .env << 'ENVEOF'
            GITHUB_REPOSITORY=${{ github.repository }}
            DATABASE_URL=${{ secrets.DATABASE_URL }}
            SESSION_SECRET=${{ secrets.SESSION_SECRET }}
            WEB_APP_URL=https://zeavisedu.asepharyana.tech
            ML_SERVICE_URL=https://ml.zeavisedu.asepharyana.tech
            ENVEOF

            docker login ghcr.io -u ${{ github.actor }} -p ${{ secrets.GITHUB_TOKEN }}
            docker network create app-shared-net 2>/dev/null || true
            docker compose pull
            docker compose up -d
            docker compose ps
            docker compose ps | grep -q "zeavis-web.*Up" || exit 1
            docker compose ps | grep -q "zeavis-api.*Up" || exit 1
            docker compose ps | grep -q "zeavis-ml.*Up" || exit 1