name: Build and Deploy KCG AI Monitoring (Frontend)

on:
  push:
    branches:
      - main
    paths:
      - 'frontend/**'

jobs:
  build-and-deploy:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '24'

      - name: Configure npm registry
        working-directory: frontend
        run: |
          echo "registry=https://nexus.gc-si.dev/repository/npm-public/" > .npmrc
          echo "//nexus.gc-si.dev/repository/npm-public/:_auth=${{ secrets.NEXUS_NPM_AUTH }}" >> .npmrc

      - name: Install dependencies
        working-directory: frontend
        run: npm ci --legacy-peer-deps

      - name: Build
        working-directory: frontend
        run: npm run build

      - name: Deploy to server
        run: |
          mkdir -p /deploy/kcg-ai-monitoring
          rm -rf /deploy/kcg-ai-monitoring/*
          cp -r frontend/dist/* /deploy/kcg-ai-monitoring/
          echo "Frontend deployed at $(date '+%Y-%m-%d %H:%M:%S')"
          ls -la /deploy/kcg-ai-monitoring/

      - name: Archive system-flow snapshot (per version)
        run: |
          # system-flow.html을 manifest version별로 영구 보존 (서버 로컬, nginx 노출 X)
          ARCHIVE=/deploy/kcg-ai-monitoring-archive/system-flow
          mkdir -p $ARCHIVE

          if [ ! -f "frontend/src/flow/manifest/meta.json" ]; then
            echo "[archive] meta.json not found, skip"
            exit 0
          fi

          VERSION=$(node -e "console.log(JSON.parse(require('fs').readFileSync('frontend/src/flow/manifest/meta.json')).version)")
          DATE=$(date +%Y-%m-%d)
          SNAPSHOT="$ARCHIVE/v${VERSION}_${DATE}"

          if [ -d "$SNAPSHOT" ]; then
            echo "[archive] v${VERSION} already exists, skip"
            exit 0
          fi

          mkdir -p "$SNAPSHOT/assets"
          cp /deploy/kcg-ai-monitoring/system-flow.html "$SNAPSHOT/" 2>/dev/null || true
          cp /deploy/kcg-ai-monitoring/assets/systemFlow-*.* "$SNAPSHOT/assets/" 2>/dev/null || true
          cp /deploy/kcg-ai-monitoring/assets/index-*.* "$SNAPSHOT/assets/" 2>/dev/null || true
          # manifest 전체 스냅샷 (JSON 형태로 별도 참조 가능)
          cp -r frontend/src/flow/manifest "$SNAPSHOT/manifest" 2>/dev/null || true
          echo "[archive] system-flow v${VERSION} snapshot saved → $SNAPSHOT"
          ls -la "$SNAPSHOT/"