name: Deploy Frontend to Production

# Manual production deploy — pulls pre-built admin + teller + customer images
on:
  workflow_dispatch:
    inputs:
      image_tag:
        description: "Docker image tag to deploy (commit SHA or version tag, e.g. v1.0.0)"
        required: true
        type: string

env:
  ADMIN_IMAGE: git.koppkb.com/kopkb/qms-fe-admin
  TELLER_IMAGE: git.koppkb.com/kopkb/qms-fe-teller
  CUSTOMER_IMAGE: git.koppkb.com/kopkb/qms-fe-customer
  DEPLOY_DIR: /home/arrahn/Project/qms-fe

jobs:
  deploy:
    runs-on: host

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          ref: ${{ inputs.image_tag }}

      - name: Login to Docker registry
        run: |
          echo "${{ secrets.REGISTRY_PASSWORD }}" | \
            docker login git.koppkb.com \
              -u "${{ secrets.REGISTRY_USERNAME }}" \
              --password-stdin

      - name: Verify frontend images exist in registry
        run: |
          set -e
          IMAGE_TAG="${{ inputs.image_tag }}"

          for IMAGE in "${ADMIN_IMAGE}:${IMAGE_TAG}" "${TELLER_IMAGE}:${IMAGE_TAG}" "${CUSTOMER_IMAGE}:${IMAGE_TAG}"; do
            echo "Checking if image exists: ${IMAGE}"
            if ! docker manifest inspect "${IMAGE}" > /dev/null 2>&1; then
              echo "ERROR: Image ${IMAGE} does not exist in registry!"
              exit 1
            fi
            echo "✓ ${IMAGE} found"
          done

      - name: Pull frontend images
        run: |
          set -e
          IMAGE_TAG="${{ inputs.image_tag }}"
          docker pull "${ADMIN_IMAGE}:${IMAGE_TAG}"
          docker pull "${TELLER_IMAGE}:${IMAGE_TAG}"
          docker pull "${CUSTOMER_IMAGE}:${IMAGE_TAG}"
          echo "✓ Images pulled successfully"

      - name: Sync compose file and deploy
        run: |
          set -e
          IMAGE_TAG="${{ inputs.image_tag }}"

          mkdir -p "${DEPLOY_DIR}"
          cp fe/web/docker-compose.yml "${DEPLOY_DIR}/docker-compose.yml"

          cd "${DEPLOY_DIR}"

          if [ ! -f .env ]; then
            echo "ERROR: ${DEPLOY_DIR}/.env is missing on the server"
            echo "Create it from fe/web/.env.example (or fe/web/.env.production) before deploying."
            exit 1
          fi

          export IMAGE_TAG
          export ADMIN_IMAGE
          export TELLER_IMAGE
          export CUSTOMER_IMAGE

          docker compose -f docker-compose.yml pull admin teller customer
          docker compose -f docker-compose.yml up -d --remove-orphans

          echo "✓ Deployed IMAGE_TAG=${IMAGE_TAG}"

      - name: Verify deployment
        run: |
          set -e
          cd "${DEPLOY_DIR}"

          echo "Waiting for services to start..."
          sleep 8

          for SERVICE in admin teller customer; do
            STATUS=$(docker compose -f docker-compose.yml ps --status running --format '{{.Name}}' "$SERVICE" 2>/dev/null || true)
            if [ -z "$STATUS" ]; then
              echo "ERROR: ${SERVICE} is not running"
              docker compose -f docker-compose.yml ps
              docker compose -f docker-compose.yml logs --tail=50 "$SERVICE" || true
              exit 1
            fi
            echo "✓ ${SERVICE} is running (${STATUS})"
          done

          ADMIN_HOST_PORT=$(grep -E '^ADMIN_HOST_PORT=' .env 2>/dev/null | cut -d= -f2- | tr -d '"' || true)
          TELLER_HOST_PORT=$(grep -E '^TELLER_HOST_PORT=' .env 2>/dev/null | cut -d= -f2- | tr -d '"' || true)
          CUSTOMER_HOST_PORT=$(grep -E '^CUSTOMER_HOST_PORT=' .env 2>/dev/null | cut -d= -f2- | tr -d '"' || true)
          ADMIN_HOST_PORT=${ADMIN_HOST_PORT:-5000}
          TELLER_HOST_PORT=${TELLER_HOST_PORT:-3001}
          CUSTOMER_HOST_PORT=${CUSTOMER_HOST_PORT:-3000}

          check_http() {
            NAME=$1
            PORT=$2
            for i in 1 2 3 4 5 6; do
              CODE=$(curl -s -o /dev/null -w "%{http_code}" "http://127.0.0.1:${PORT}/" || echo "000")
              if [ "${CODE}" != "000" ]; then
                echo "✓ ${NAME} is responding on port ${PORT} (HTTP ${CODE})"
                return 0
              fi
              echo "Waiting for ${NAME}... attempt ${i}/6"
              sleep 3
            done
            echo "ERROR: ${NAME} is not responding on port ${PORT}"
            return 1
          }

          check_http "admin" "${ADMIN_HOST_PORT}"
          check_http "teller" "${TELLER_HOST_PORT}"
          check_http "customer" "${CUSTOMER_HOST_PORT}"