name: Deploy Dashboard (Main)
on:
  push:
    branches: [main]
    paths:
      - 'dashboard/**'
      - '.gitea/workflows/deploy.yml'

concurrency:
  group: deploy-dashboard-main
  cancel-in-progress: true

jobs:
  backend-tests:
    name: Backend Tests
    runs-on: ubuntu-latest
    env:
      SECRET_KEY: test-secret-key-for-ci-environment-32chars-minimum

    steps:
      - name: Checkout repository
        run: |
          if [ ! -d .git ]; then
            git clone --depth=1 "http://gitea:3000/${GITHUB_REPOSITORY}.git" .
          fi

      - name: Setup Python
        run: |
          python3 --version
          python3 -c "import sys; assert sys.version_info[:2] == (3, 12), f'Expected Python 3.12, got {sys.version}'; print('Python 3.12 confirmed')"
          pip3 --version

      - name: Cache Python dependencies
        id: cache-python
        run: |
          CACHE_KEY="python-$(cat dashboard/backend/requirements.txt dashboard/backend/requirements-dev.txt | md5sum | cut -d' ' -f1)"
          CACHE_DIR="/tmp/pytest-cache/$CACHE_KEY"
          PIP_CACHE_DIR="/tmp/pip-cache"
          echo "CACHE_DIR=$CACHE_DIR" >> $GITHUB_ENV
          echo "CACHE_KEY=$CACHE_KEY" >> $GITHUB_ENV
          echo "PIP_CACHE_DIR=$PIP_CACHE_DIR" >> $GITHUB_ENV
          mkdir -p "$PIP_CACHE_DIR"
          if [ -d "$CACHE_DIR" ]; then
            echo "Cache hit for $CACHE_KEY"
            echo "cache-hit=true" >> $GITHUB_OUTPUT
          else
            echo "Cache miss for $CACHE_KEY"
            echo "cache-hit=false" >> $GITHUB_OUTPUT
            mkdir -p "$CACHE_DIR"
          fi

      - name: Install dependencies
        run: |
          cd dashboard/backend
          if [ "${{ steps.cache-python.outputs.cache-hit }}" = "true" ]; then
            echo "Restoring venv from cache $CACHE_KEY..."
            if cp -a $CACHE_DIR/venv . && [ -f venv/bin/activate ]; then
              echo "Cache restored successfully"
            else
              echo "Cache corrupted, installing fresh..."
              rm -rf venv
              python3 -m venv venv
              . venv/bin/activate
              pip install --cache-dir=$PIP_CACHE_DIR -r requirements.txt || pip install -r requirements.txt
              pip install --cache-dir=$PIP_CACHE_DIR -r requirements-dev.txt || pip install -r requirements-dev.txt
              pip install --cache-dir=$PIP_CACHE_DIR pytest-timeout pytest-cov || pip install pytest-timeout pytest-cov
            fi
          else
            echo "Installing fresh dependencies..."
            python3 -m venv venv
            . venv/bin/activate
            pip install --cache-dir=$PIP_CACHE_DIR -r requirements.txt || pip install -r requirements.txt
            pip install --cache-dir=$PIP_CACHE_DIR -r requirements-dev.txt || pip install -r requirements-dev.txt
            pip install --cache-dir=$PIP_CACHE_DIR pytest-timeout pytest-cov || pip install pytest-timeout pytest-cov
            echo "Saving venv to cache $CACHE_KEY..."
            cp -a venv $CACHE_DIR/ || echo "Warning: cache save failed"
          fi

      - name: Run tests with coverage
        run: |
          cd dashboard/backend
          . venv/bin/activate
          pytest tests/ -v --timeout=60 \
            --cov=. --cov-report=xml --cov-report=term \
            --junit-xml=test-results.xml \
            --cov-fail-under=49

          if [ $? -ne 0 ]; then
            echo "❌ Backend tests failed!"
            exit 1
          fi
          echo "✅ Backend tests passed"

  frontend-tests:
    name: Frontend Tests
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        run: |
          if [ ! -d .git ]; then
            git clone --depth=1 "http://gitea:3000/${GITHUB_REPOSITORY}.git" .
          fi

      - name: Setup Node.js
        run: |
          node --version
          echo "Node $(node --version) detected"
          npm --version

      - name: Cache Node dependencies
        id: cache-node
        run: |
          CACHE_KEY="node-$(md5sum dashboard/frontend/package-lock.json | cut -d' ' -f1)"
          CACHE_DIR="/tmp/npm-cache/$CACHE_KEY"
          echo "CACHE_DIR=$CACHE_DIR" >> $GITHUB_ENV
          echo "CACHE_KEY=$CACHE_KEY" >> $GITHUB_ENV
          if [ -d "$CACHE_DIR" ]; then
            echo "Cache hit for $CACHE_KEY"
            echo "cache-hit=true" >> $GITHUB_OUTPUT
          else
            echo "Cache miss for $CACHE_KEY"
            echo "cache-hit=false" >> $GITHUB_OUTPUT
            mkdir -p "$CACHE_DIR"
          fi

      - name: Install dependencies
        env:
          NODE_OPTIONS: "--max-old-space-size=2048"
        run: |
          cd dashboard/frontend
          npm config set registry https://registry.npmmirror.com || true
          if [ "${{ steps.cache-node.outputs.cache-hit }}" = "true" ]; then
            echo "Restoring from cache $CACHE_KEY..."
            if cp -a $CACHE_DIR/node_modules . && [ -d node_modules ]; then
              echo "Cache restored successfully"
            else
              echo "Cache corrupted, installing fresh..."
              rm -rf node_modules
              npm ci
            fi
          else
            echo "Installing fresh dependencies..."
            npm ci
            echo "Saving to cache $CACHE_KEY..."
            cp -a node_modules $CACHE_DIR/ || echo "Warning: cache save failed"
          fi

      - name: Run tests
        env:
          NODE_OPTIONS: "--max-old-space-size=2048"
        run: |
          cd dashboard/frontend
          npm run test:coverage -- --reporter=verbose --run --pool=forks --poolOptions.forks.maxForks=2

          if [ $? -ne 0 ]; then
            echo "❌ Frontend tests failed!"
            exit 1
          fi
          echo "✅ Frontend tests passed"

  deploy:
    name: Deploy to Production
    runs-on: ubuntu-latest
    needs: [backend-tests, frontend-tests]
    container:
      volumes:
        - /var/packages/ContainerManager/target/usr/bin/docker:/usr/bin/docker
        - /volume1/docker/nas-dashboard:/nas-dashboard
    steps:
      - name: Checkout repository
        run: |
          if [ ! -d .git ]; then
            git clone --depth=1 "http://gitea:3000/${GITHUB_REPOSITORY}.git" .
          fi

      - name: Warm mirror cache for base images
        run: |
          set -u
          mirror_host="100.78.131.124:5501"

          if command -v curl >/dev/null 2>&1; then
            if curl -fsS "http://${mirror_host}/v2/" >/dev/null; then
              echo "Registry mirror is healthy at ${mirror_host}"
            else
              echo "Warning: registry mirror health check failed at ${mirror_host}; continuing with normal pull path"
            fi
          else
            echo "Warning: curl is unavailable; skipping explicit mirror health check"
          fi

          prewarm_base_image() {
            image_ref="$1"
            # Skip if image already exists locally
            if docker image inspect "${image_ref}" >/dev/null 2>&1; then
              echo "Image ${image_ref} already exists locally, skipping pre-pull"
              return 0
            fi

            mirror_ref="${mirror_host}/library/${image_ref}"
            echo "Attempting mirror pre-pull: ${mirror_ref}"
            if timeout 120 docker pull "${mirror_ref}"; then
              docker tag "${mirror_ref}" "${image_ref}"
              echo "Mirror pre-pull succeeded for ${image_ref}"
            else
              echo "Warning: mirror pre-pull failed for ${image_ref}; continuing with normal pull during build"
            fi
          }

          prewarm_base_image "node:20-alpine"
          prewarm_base_image "python:3.12-slim"

      - name: Build
        run: |
          set -e
          export DOCKER_API_VERSION=1.43
          # DOCKER_BUILDKIT=0 is required for Synology ContainerManager's Docker daemon,
          # which does not support BuildKit syntax. Remove when Synology updates to a
          # Docker Engine version with full BuildKit support (currently 24.x, needs 23+).
          # --cache-to type=inline is a no-op while BuildKit is disabled; it activates
          # automatically when DOCKER_BUILDKIT=0 is removed.
          if ! DOCKER_BUILDKIT=0 docker build --cache-from nas-dashboard:latest -t nas-dashboard:latest dashboard/; then
            echo "Build failed. Checking for network issues..."
            curl -I https://registry.npmmirror.com || echo "npmmirror unreachable"
            curl -I https://pypi.tuna.tsinghua.edu.cn || echo "Tsinghua PyPI unreachable"
            exit 1
          fi

      - name: Sync runtime compose file
        run: cp dashboard/docker-compose.yml /nas-dashboard/docker-compose.yml

      - name: Deploy
        run: |
          set -e
          export DOCKER_API_VERSION=1.43
          docker compose -f /nas-dashboard/docker-compose.yml up -d --pull never

      - name: Wait for container to be healthy
        run: |
          echo "Waiting for container to be healthy..."
          for i in {1..30}; do
            STATUS=$(docker inspect --format='{{.State.Health.Status}}' nas-dashboard 2>/dev/null || echo "starting")
            if [ "$STATUS" = "healthy" ]; then
              echo "✅ Container is healthy"
              exit 0
            fi
            echo "Waiting... ($i/30) Status: $STATUS"
            sleep 2
          done
          echo "❌ Container failed to become healthy"
          docker logs nas-dashboard --tail 50
          exit 1