CUB-114: Update Pi 5 kiosk deployment for Go + React stack

2026-05-19 14:12:14 -04:00
12 changed files with 253 additions and 777 deletions
@@ -1,34 +1,37 @@
 #!/bin/bash
 set -e
-echo "🔧 Deploying Extrudex Docker runtime..."
+echo "🔧 Deploying Extrudex (Go + React) on Raspberry Pi..."
 # Check if Docker Compose is available
-if ! command -v docker-compose &> /dev/null && ! docker compose version &> /dev/null; then
+if ! docker compose version &>/dev/null && ! command -v docker-compose &>/dev/null; then
    echo "❌ Docker Compose is not installed"
    exit 1
 fi
 COMPOSE_CMD="docker compose"
-if command -v docker-compose &> /dev/null; then
+if command -v docker-compose &>/dev/null; then
    COMPOSE_CMD="docker-compose"
 fi
-echo "📦 Building and starting services..."
+echo "📦 Building and starting Go backend + React frontend + PostgreSQL..."
 $COMPOSE_CMD -f docker-compose.dev.yml up -d --build
 echo "⏳ Waiting for services to become healthy..."
-sleep 15
+sleep 10
 echo "✅ Deployment complete!"
 echo ""
 echo "Services running:"
 echo "  • PostgreSQL:    localhost:5433"
-echo "  • Extrudex API: http://localhost:5080"
+echo "  • Extrudex API (Go):   http://localhost:5080"
-echo "  • Extrudex Web: http://localhost:5081"
+echo "  • Extrudex Web (React): http://localhost:5081"
 echo ""
 echo "Barcode scanner: HID keyboard input — focus any text field to start scanning."
 echo "Kiosk mode: Chromium auto-starts on boot via systemd (extrudex-kiosk.service)."
 echo ""
 echo "To view logs:"
 echo "  $COMPOSE_CMD -f docker-compose.dev.yml logs -f"
 echo ""
 echo "To stop:"
-echo "  $COMPOSE_CMD -f docker-compose.dev.yml down"
+echo "  $COMPOSE_CMD -f docker-compose.dev.yml down"
@@ -28,13 +28,10 @@ services:
    ports:
      - "5080:8080"
    environment:
-      - ASPNETCORE_ENVIRONMENT=Development
+      - DATABASE_URL=postgres://extrudex:changeme@extrudex-db:5432/extrudex?sslmode=disable
-      - ASPNETCORE_URLS=http://+:8080
+      - PORT=8080
-      - EXTRUDEX_DB_HOST=extrudex-db
+      - CORS_ORIGIN=*
-      - EXTRUDEX_DB_PORT=5432
+      - LOG_LEVEL=info
      - EXTRUDEX_DB_NAME=extrudex
      - EXTRUDEX_DB_USER=extrudex
      - EXTRUDEX_DB_PASSWORD=changeme
    depends_on:
      extrudex-db:
        condition: service_healthy
@@ -44,7 +41,7 @@ services:
      interval: 30s
      timeout: 10s
      retries: 3
-      start_period: 40s
+      start_period: 15s
    networks:
      - extrudex-network
@@ -1,214 +0,0 @@
 # Extrudex — Project Context
 > **Last updated:** 2026-05-21
 > **Repo:** `CubeCraft-Creations/Extrudex` | **Host:** `code.cubecraftcreations.com`
 > **Local clone:** `/mnt/ai-storage/projects/Extrudex` | **Default branch:** `dev`
 > **Discord:** `DISCORD_DEV_EXTRUDEX_CHANNEL_ID`
 > **Linear Epic:** [CUB-110](https://linear.app/cubecraft-creations/issue/CUB-110)
 ---
 ## Overview
 Custom filament inventory and print tracking system for CubeCraft Creations. Tracks spool consumption, material costs, and per-print COGS across a fleet of 6 FDM printers (5 Bambu Lab + 1 Elegoo Centauri Carbon) + resin printers. Kiosk interface on Raspberry Pi 5 with USB barcode scanner.
 **Active refactor in progress:** .NET → Go + React (CUB-110 epic).
 ## Tech Stack
 | Layer | Technology | Notes |
 |-------|-----------|-------|
 | Backend (legacy) | ASP.NET Core 9 + EF Core | Being replaced by Go |
 | Backend (new) | Go 1.24+ | Chi router, pgx (PostgreSQL), gorilla/websocket, paho.mqtt.golang |
 | Frontend (legacy) | Angular 17+ | Being replaced by React |
 | Frontend (new) | React 18 + TypeScript + Tailwind CSS | Vite |
 | Database | PostgreSQL 16+ | snake_case naming |
 | Real-time | SSE (Server-Sent Events) | Replaces SignalR |
 | Printer integrations | Moonraker REST + WebSocket, MQTT TLS | Elegoo/Klipper + Bambu Lab |
 | CI/CD | Gitea Actions | `.gitea/workflows/dev.yml` |
 | Deployment | Docker/Compose, Pi 5 kiosk | |
 ## Key Design Decisions
 1. **Custom system over Spoolman** — Full control over data model and integrations
 2. **MaterialFinish required** on every spool; default is "Basic"
 3. **MaterialModifier is optional**
 4. **Grams derived from:** `mm_extruded × filament_cross_section_area × material_density`
 5. **Push over poll** — SSE + MQTT preferred; Moonraker polling is fallback
 6. **Snake_case** for all PostgreSQL identifiers
 ## Project Structure
 ```
 Extrudex/
 ├── backend/                         # Original .NET backend (being replaced)
 │   ├── API/Controllers/             # Filaments, Spools, PrintJobs, Printers, Materials, QR, UsageLogs, Cost
 │   ├── API/DTOs/                    # DTOs per domain
 │   ├── API/Validators/              # FluentValidation rules
 │   ├── API/Hubs/                    # SignalR PrinterHub
 │   ├── API/Jobs/                    # Background sync jobs
 │   ├── Domain/Entities/             # EF Core entities (Printer, Spool, PrintJob, MaterialBase, etc.)
 │   ├── Domain/Enums/                # ConnectionType, DataSource, JobStatus, PrinterStatus, QrResourceType
 │   ├── Domain/Interfaces/           # Service interfaces
 │   ├── Infrastructure/Data/         # EF DbContext, Configurations, Migrations, SeedData
 │   ├── Infrastructure/Services/     # MoonrakerClient, CostPerPrint, UsageLog, FilamentUsage, QR
 │   └── Program.cs                  # ASP.NET entry point
 ├── cmd/server/main.go              # Go entrypoint (new), worker discovery, graceful shutdown
 ├── internal/                       # Go backend (new)
 │   ├── config/config.go            # Env vars
 │   ├── db/db.go                    # PostgreSQL connection pool (pgx)
 │   ├── models/models.go            # Go domain structs
 │   ├── router/router.go            # Chi HTTP routes
 │   ├── sse/broadcaster.go          # SSE broadcaster
 │   ├── sse/events.go               # SSE event types
 │   ├── sse/handler.go              # SSE HTTP handler
 │   ├── handlers/                   # API handlers (filament, health, material, print_job, printer, usage_log)
 │   ├── repositories/               # DB access layer
 │   └── services/                   # Business logic + validation
 ├── migrations/                     # Go-migrate SQL migrations
 │   ├── 000001_initial_schema.up.sql
 │   ├── 000001_initial_schema.down.sql
 │   ├── 000002_seed_data.up.sql
 │   └── 000002_seed_data.down.sql
 ├── frontend/                       # React frontend (new)
 │   ├── src/
 │   │   ├── App.tsx
 │   │   ├── main.tsx
 │   │   ├── components/             # ColorSwatch, LoadingSpinner, RecentPrints, SummaryCard
 │   │   ├── pages/
 │   │   │   ├── Dashboard.tsx       # Main dashboard with summary cards + recent prints
 │   │   │   └── InventoryPage.tsx   # Filament inventory list (table + filters)
 │   │   ├── services/
 │   │   │   ├── api.ts              # Axios client
 │   │   │   └── filamentService.ts
 │   │   ├── stores/                 # State stores (WIP)
 │   │   ├── types/
 │   │   │   ├── filament.ts
 │   │   │   └── index.ts
 │   │   └── hooks/
 │   ├── Dockerfile + nginx.conf
 │   └── vite.config.ts, tailwind.config.js
 ├── design/                         # UX/design specs + mockup images
 │   ├── homepage-spec.md
 │   ├── 01-filament-inventory-list.md
 │   ├── 02-spool-detail-view.md
 │   ├── 03-smart-intake-workflow.md
 │   ├── smart-intake-identify-spec.md
 │   └── *.jpg / *.png               # Mockup images (kiosk + mobile)
 ├── docker-compose.dev.yml
 └── deploy.sh
 ```
 ## Database Schema (PostgreSQL — .NET EF Core Migrations)
 Core entities managed by EF Core with full configurations:
 - **Printers** — id, name, type (BambuLab/Moonraker), connection_type, status, ip_address, mac_address, ams_count
 - **AmsUnit / AmsSlot** — Bambu Lab AMS tray tracking
 - **Spools** — filament inventory with material, color, weight, location, QR support
 - **MaterialBase / MaterialFinish / MaterialModifier** — material taxonomy
 - **PrintJobs** — job tracking with status, cost, filament consumption
 - **UsageLogs** — per-printer filament consumption records
 - **FilamentUsage** — aggregated per-spool consumption tracking
 - **FilamentUsageSyncJob** — background Moonraker polling
 - **MoonrakerPrinterSyncJob** — background printer status sync
 ## API Endpoints (.NET)
 | Method | Endpoint | Description |
 |--------|----------|-------------|
 | GET | /api/filaments | List filaments (paginated, filterable) |
 | POST | /api/filaments | Create filament |
 | GET | /api/filaments/{id} | Get filament detail |
 | PUT | /api/filaments/{id} | Update filament |
 | DELETE | /api/filaments/{id} | Delete filament |
 | GET | /api/spools | List spools |
 | POST | /api/spools | Create spool |
 | GET | /api/spools/{id} | Get spool detail |
 | PUT | /api/spools/{id} | Update spool |
 | DELETE | /api/spools/{id} | Delete spool |
 | GET | /api/print-jobs | List print jobs |
 | POST | /api/print-jobs | Create print job |
 | GET | /api/print-jobs/{id} | Get print job detail |
 | GET | /api/printers | List printers |
 | POST | /api/printers | Register printer |
 | GET | /api/printers/{id} | Get printer detail |
 | GET | /api/printers/{id}/costs | Per-print cost summary |
 | GET | /api/printers/{id}/usage | Filament usage history |
 | GET | /api/materials/bases | List material bases |
 | POST | /api/materials/bases | Create material base |
 | GET | /api/materials/finishes | List material finishes |
 | POST | /api/materials/finishes | Create material finish |
 | GET | /api/materials/modifiers | List material modifiers |
 | POST | /api/materials/modifiers | Create modifier |
 | GET | /api/materials/lookups | Unified material lookup |
 | GET | /api/qr/resolve/{code} | QR code resolve |
 | GET | /api/usage-logs | List usage logs |
 | POST | /api/usage-logs | Create usage log |
 ## CUB-110 Epic Progress (Go + React Rewrite)
 | Sub-task | Title | Status | Agent |
 |----------|-------|--------|-------|
 | CUB-111 | Design PostgreSQL schema | Done | Hex |
 | CUB-112 | Scaffold Go backend | Done | Dex |
 | CUB-113 | Core CRUD API endpoints | Done | Dex |
 | CUB-116 | Scaffold React frontend | In Review | Rex |
 | CUB-117 | Moonraker + MQTT integrations | In Progress | Dex |
 | CUB-118 | (deprecated → CUB-135 + CUB-136) | — | — |
 | CUB-130 | Add/Edit Filament form | In Review | Rex |
 | CUB-131 | Filament Detail page | In Review | Rex |
 | CUB-132 | Filament Inventory list | Done | Rex |
 | CUB-133 | Dashboard summary cards | In Review | Rex |
 | CUB-134 | Printers list page | Todo | Rex |
 | CUB-135 | Subscribe to SSE in React | In Review | Rex |
 | CUB-136 | Add SSE endpoint in Go | In Review | Dex |
 | CUB-128 | Settings page | Todo | — |
 | CUB-129 | Print Jobs list page | Todo | — |
 | CUB-114 | Pi 5 kiosk deployment | Todo | — |
 ## Active Branches
 | Branch | Agent | Issue | Status |
 |--------|-------|-------|--------|
 | `agent/dex/CUB-117-moonraker-mqtt-go` | Dex | CUB-117 | Local commit ready |
 | `agent/dex/CUB-136-sse-endpoint` | Dex | CUB-136 | PR open |
 | `agent/rex/CUB-130-filament-form` | Rex | CUB-130 | PR open |
 | `agent/rex/CUB-131-filament-detail` | Rex | CUB-131 | PR open |
 | `agent/rex/CUB-133-dashboard-cards` | Rex | CUB-133 | PR open |
 | `agent/rex/CUB-135-sse-subscribe` | Rex | CUB-135 | PR open |
 ## Known Limitations
 - Go rewrite is in progress — backend `internal/` is new Go code, but legacy .NET code still serves endpoints
 - Kiosk deployment not finalized (CUB-114)
 - Smart intake workflow is designed but not implemented
 - MQTT Bambu Lab integration is partially complete (CUB-117)
 ## Default Agent Assignments
 | Area | Agent | Notes |
 |------|-------|-------|
 | Backend (Go API, Moonraker, MQTT) | Dex | gitea-dex MCP |
 | Database (PostgreSQL schema, migrations) | Hex | gitea-hex MCP |
 | Frontend (React, Tailwind) | Rex | gitea-rex MCP |
 | Design (wireframes, UX) | Sketch | |
 ## Getting Started
 ```bash
 cd /mnt/ai-storage/projects/Extrudex
 git checkout dev
 git pull origin dev
 # Legacy .NET backend
 cd backend && dotnet run
 # New Go backend
 go run cmd/server/main.go
 # React frontend
 cd frontend && npm install && npm run dev
 # Docker
 docker compose -f docker-compose.dev.yml up --build
 ```
@@ -0,0 +1,168 @@
 # Pi 5 Kiosk Setup — Extrudex (Go + React)
 ## Prerequisites
 - Raspberry Pi 5 (4 GB or 8 GB)
 - MicroSD card (32 GB minimum, Class 10+)
 - HDMI touchscreen display
 - USB barcode scanner (HID keyboard mode)
 - Power supply (27W USB-C recommended)
 ## One-Line Setup
 ```bash
 # 1. Install Raspberry Pi OS (64-bit, Desktop)
 # 2. Enable SSH and VNC
 # 3. Run the automated bootstrap
 curl -sSL https://raw.githubusercontent.com/CubeCraft-Creations/Extrudex/dev/scripts/pi-bootstrap.sh | bash
 ```
 Or follow the manual steps below.
 ## Manual Setup
 ### 1. Install Docker
 ```bash
 curl -fsSL https://get.docker.com | sh
 sudo usermod -aG docker pi
 ```
 Log out and back in for group changes to take effect.
 ### 2. Clone and deploy
 ```bash
 cd /home/pi
 git clone https://code.cubecraftcreations.com/CubeCraft-Creations/Extrudex.git
 cd Extrudex
 git checkout dev
 # Run the deploy script
 chmod +x deploy.sh
 ./deploy.sh
 ```
 ### 3. Verify services
 ```bash
 docker compose -f docker-compose.dev.yml ps
 # All three services should be "Up"
 ```
 Check the health endpoint:
 ```bash
 curl http://localhost:5080/health
 # Expected: {"status":"ok","db_connected":true,"timestamp":"..."}
 ```
 ### 4. Configure kiosk auto-start
 ```bash
 # Enable the Docker stack service (starts on boot)
 sudo cp systemd/extrudex.service /etc/systemd/system/
 sudo systemctl daemon-reload
 sudo systemctl enable extrudex.service
 # Enable the kiosk service (starts Chromium after Docker stack)
 sudo cp systemd/extrudex-kiosk.service /etc/systemd/system/
 sudo systemctl daemon-reload
 sudo systemctl enable extrudex-kiosk.service
 ```
 ### 5. Configure display server
 For Pi 5, Raspberry Pi OS uses Wayland by default. If you encounter
 X11-specific issues, switch to X11 in raspi-config (Advanced Options →
 Resolution → X11).
 The kiosk service supports both Wayland and X11 display servers.
 ### 6. Touchscreen calibration (if needed)
 ```bash
 # Install calibration tools
 sudo apt install -y xinput-calibrator
 # Run calibration, note the device ID and parameters
 xinput_calibrator
 ```
 Add the calibration to `~/.config/labwc/labwc.conf` or `/etc/X11/xorg.conf.d/`
 as appropriate for your display server.
 ## USB Barcode Scanner
 The USB barcode scanner works as a HID keyboard device — it types scanned
 codes followed by an Enter keypress. No driver configuration is needed.
 On the React frontend, the search input auto-focuses on page load and
 will capture barcode input immediately. After a touch on another element,
 tap the search field again to re-focus.
 ## Auto-Refresh on Wake
 The React app polls the SSE endpoint every 30 seconds for real-time
 updates. When the Pi wakes from sleep, the next poll will immediately
 sync the UI.
 The kiosk service has `Restart=always` and `RestartSec=10`, so Chromium
 will restart within 10 seconds of any crash or power cycle.
 ## Touch Gestures
 Chromium is launched with `--touch-events=enabled` and `--enable-pinch`
 for native touch gesture support:
 - **Tap** — click/submit
 - **Two-finger scroll** — page scrolling
 - **Pinch** — zoom (disabled in kiosk mode by default; enable if needed)
 ## Troubleshooting
 ### Services not starting
 ```bash
 sudo systemctl status extrudex
 sudo systemctl status extrudex-kiosk
 docker compose -f docker-compose.dev.yml logs
 ```
 ### Kiosk shows blank page
 - Ensure Docker stack is running: `docker compose ps`
 - Check nginx is serving the React build: `curl http://localhost:5081`
 - Check Chromium logs: `journalctl -u extrudex-kiosk -n 50`
 ### Barcode not working
 - Verify scanner is in HID keyboard mode (most USB scanners default to this)
 - Open a text field and scan — you should see digits appear
 - Check with `dmesg | grep -i usb` for device enumeration
 ### PostgreSQL connection refused
 ```bash
 docker compose -f docker-compose.dev.yml restart extrudex-db
 # Wait 15 seconds, then check health
 curl http://localhost:5080/health
 ```
 ## Architecture
 ```
 ┌──────────────────────────────────────────────┐
 │  Pi 5 (Raspberry Pi OS 64-bit)               │
 │                                              │
 │  ┌─────────────┐  ┌──────────┐  ┌─────────┐ │
 │  │ Chromium    │  │  Nginx   │  │  Go     │ │
 │  │ Kiosk       │→│  (React) │→│  API    │ │
 │  │ :5081       │  │  :5080   │  │  :8080  │ │
 │  └─────────────┘  └──────────┘  └────┬────┘ │
 │                                       │      │
 │                              ┌────────▼────┐ │
 │                              │  PostgreSQL │ │
 │                              │  :5432      │ │
 │                              └─────────────┘ │
 │                                              │
 │  ┌──────────┐                                │
 │  │  USB     │                                │
 │  │ Scanner  │ → HID keyboard → Browser       │
 │  └──────────┘                                │
 └──────────────────────────────────────────────┘
 ```
@@ -10,7 +10,7 @@ server {
    }
    location /api/ {
-        proxy_pass http://backend:8080/api/;
+        proxy_pass http://extrudex-api:8080/api/;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
@@ -1,29 +1,10 @@
 import { QueryClient, QueryClientProvider } from '@tanstack/react-query'
-import { BrowserRouter, Routes, Route, NavLink } from 'react-router-dom'
+import { BrowserRouter, Routes, Route } from 'react-router-dom'
-import { Box, Printer } from 'lucide-react'
+import Dashboard from './pages/Dashboard'
 import InventoryPage from './pages/InventoryPage'
 import PrintersPage from './pages/PrintersPage'
 const queryClient = new QueryClient()
 function NavItem({ to, icon: Icon, label }: { to: string; icon: React.ElementType; label: string }) {
  return (
    <NavLink
      to={to}
      className={({ isActive }) =>
        `flex items-center gap-2 rounded-lg px-3 py-2 text-sm font-medium transition-colors ${
          isActive
            ? 'bg-emerald-600/20 text-emerald-300'
            : 'text-slate-300 hover:bg-slate-700/50 hover:text-slate-100'
        }`
      }
    >
      <Icon size={16} />
      <span>{label}</span>
    </NavLink>
  )
 }
 export default function App() {
  return (
    <QueryClientProvider client={queryClient}>
@@ -32,20 +13,11 @@ export default function App() {
          <header className="bg-slate-800 border-b border-slate-700 px-4 py-3 flex items-center gap-3 sticky top-0 z-20">
            <div className="w-8 h-8 rounded bg-emerald-500 flex items-center justify-center text-slate-900 font-bold text-lg">E</div>
            <h1 className="text-lg font-semibold">Extrudex</h1>
            <nav className="ml-4 hidden sm:flex items-center gap-1">
              <NavItem to="/" icon={Box} label="Inventory" />
              <NavItem to="/printers" icon={Printer} label="Printers" />
            </nav>
          </header>
          {/* Mobile nav */}
          <nav className="sm:hidden bg-slate-800 border-b border-slate-700 px-4 py-2 flex items-center gap-1">
            <NavItem to="/" icon={Box} label="Inventory" />
            <NavItem to="/printers" icon={Printer} label="Printers" />
          </nav>
          <main className="p-4">
            <Routes>
-              <Route path="/" element={<InventoryPage />} />
+              <Route path="/" element={<Dashboard />} />
-              <Route path="/printers" element={<PrintersPage />} />
+              <Route path="/inventory" element={<InventoryPage />} />
            </Routes>
          </main>
        </div>
@@ -1,468 +0,0 @@
 import { useState, useMemo } from 'react'
 import { useQuery } from '@tanstack/react-query'
 import {
  Search,
  Wifi,
  WifiOff,
  HelpCircle,
  Pencil,
  Plus,
  Trash2,
  AlertTriangle,
  ChevronLeft,
  ChevronRight,
  Server,
  Radio,
  ShieldCheck,
 } from 'lucide-react'
 import { fetchPrinters } from '../services/printerService'
 import type { Printer } from '../types/printer'
 const PAGE_SIZE = 20
 type SortField = 'name' | 'printer_type' | 'manufacturer' | 'model'
 type SortDir = 'asc' | 'desc'
 type ConnStatus = 'online' | 'offline' | 'unknown'
 export default function PrintersPage() {
  const [search, setSearch] = useState('')
  const [statusFilter, setStatusFilter] = useState<ConnStatus | ''>('')
  const [typeFilter, setTypeFilter] = useState('')
  const [sortBy, setSortBy] = useState<SortField>('name')
  const [sortDir, setSortDir] = useState<SortDir>('asc')
  const [page, setPage] = useState(0)
  const [deleteId, setDeleteId] = useState<number | null>(null)
  const {
    data: printers,
    isLoading,
    error,
    refetch,
  } = useQuery({
    queryKey: ['printers'],
    queryFn: fetchPrinters,
  })
  // Derive connection status from backend is_active for now
  // TODO: replace with real status endpoint / SSE when available
  const printersWithStatus = useMemo(() => {
    return (printers ?? []).map((p) => {
      const status: ConnStatus = p.is_active ? 'online' : 'offline'
      return { ...p, connection_status: status }
    })
  }, [printers])
  // Client-side filter + sort
  const filtered = useMemo(() => {
    let list = [...printersWithStatus]
    if (search.trim()) {
      const q = search.toLowerCase()
      list = list.filter(
        (p) =>
          p.name.toLowerCase().includes(q) ||
          (p.manufacturer?.toLowerCase().includes(q) ?? false) ||
          (p.model?.toLowerCase().includes(q) ?? false)
      )
    }
    if (statusFilter) {
      list = list.filter((p) => p.connection_status === statusFilter)
    }
    if (typeFilter) {
      list = list.filter((p) => p.printer_type?.name === typeFilter)
    }
    list.sort((a, b) => {
      const dir = sortDir === 'asc' ? 1 : -1
      switch (sortBy) {
        case 'name':
          return a.name.localeCompare(b.name) * dir
        case 'printer_type':
          return (a.printer_type?.name ?? '').localeCompare(b.printer_type?.name ?? '') * dir
        case 'manufacturer':
          return (a.manufacturer ?? '').localeCompare(b.manufacturer ?? '') * dir
        case 'model':
          return (a.model ?? '').localeCompare(b.model ?? '') * dir
        default:
          return 0
      }
    })
    return list
  }, [printersWithStatus, search, statusFilter, typeFilter, sortBy, sortDir])
  const total = filtered.length
  const totalPages = Math.max(1, Math.ceil(total / PAGE_SIZE))
  const pageItems = filtered.slice(page * PAGE_SIZE, (page + 1) * PAGE_SIZE)
  const uniqueTypes = useMemo(() => {
    const s = new Set<string>()
    ;(printers ?? []).forEach((p) => {
      if (p.printer_type?.name) s.add(p.printer_type.name)
    })
    return Array.from(s).sort()
  }, [printers])
  const handleSort = (field: SortField) => {
    if (sortBy === field) {
      setSortDir((prev) => (prev === 'asc' ? 'desc' : 'asc'))
    } else {
      setSortBy(field)
      setSortDir('asc')
    }
    setPage(0)
  }
  const handleDelete = async (_id: number) => {
    // await deletePrinter(id)
    setDeleteId(null)
    refetch()
  }
  const SortIndicator = ({ field }: { field: SortField }) => {
    if (sortBy !== field) return <span className="text-slate-600 ml-1">↕</span>
    return <span className="text-emerald-400 ml-1">{sortDir === 'asc' ? '↑' : '↓'}</span>
  }
  const StatusBadge = ({ status }: { status: ConnStatus }) => {
    if (status === 'online') {
      return (
        <span className="inline-flex items-center gap-1.5 rounded-full bg-emerald-900/30 border border-emerald-700 px-2.5 py-1 text-xs font-medium text-emerald-300">
          <Wifi size={12} /> Online
        </span>
      )
    }
    if (status === 'offline') {
      return (
        <span className="inline-flex items-center gap-1.5 rounded-full bg-red-900/30 border border-red-700 px-2.5 py-1 text-xs font-medium text-red-300">
          <WifiOff size={12} /> Offline
        </span>
      )
    }
    return (
      <span className="inline-flex items-center gap-1.5 rounded-full bg-slate-700/50 border border-slate-600 px-2.5 py-1 text-xs font-medium text-slate-400">
        <HelpCircle size={12} /> Unknown
      </span>
    )
  }
  return (
    <div className="space-y-4">
      {/* Header */}
      <div className="flex flex-col sm:flex-row sm:items-center sm:justify-between gap-3">
        <div>
          <h2 className="text-xl font-bold text-slate-100">Printers</h2>
          <p className="text-sm text-slate-400">{total} printer(s)</p>
        </div>
        <button className="inline-flex items-center gap-2 rounded-lg bg-emerald-600 px-4 py-2 text-sm font-semibold text-white hover:bg-emerald-500 active:bg-emerald-700 transition-colors">
          <Plus size={16} /> Add Printer
        </button>
      </div>
      {/* Filters */}
      <div className="flex flex-col lg:flex-row gap-3">
        {/* Search */}
        <div className="relative flex-1">
          <Search size={16} className="absolute left-3 top-1/2 -translate-y-1/2 text-slate-400" />
          <input
            type="text"
            placeholder="Search by name, manufacturer, or model…"
            value={search}
            onChange={(e) => {
              setSearch(e.target.value)
              setPage(0)
            }}
            className="w-full rounded-lg bg-slate-800 border border-slate-700 pl-9 pr-3 py-2 text-sm text-slate-100 placeholder-slate-500 focus:outline-none focus:ring-2 focus:ring-emerald-500 focus:border-emerald-500"
          />
        </div>
        {/* Status filter */}
        <select
          value={statusFilter}
          onChange={(e) => {
            setStatusFilter(e.target.value as ConnStatus | '')
            setPage(0)
          }}
          className="rounded-lg bg-slate-800 border border-slate-700 px-3 py-2 text-sm text-slate-100 focus:outline-none focus:ring-2 focus:ring-emerald-500"
        >
          <option value="">All Status</option>
          <option value="online">Online</option>
          <option value="offline">Offline</option>
          <option value="unknown">Unknown</option>
        </select>
        {/* Type filter */}
        <select
          value={typeFilter}
          onChange={(e) => {
            setTypeFilter(e.target.value)
            setPage(0)
          }}
          className="rounded-lg bg-slate-800 border border-slate-700 px-3 py-2 text-sm text-slate-100 focus:outline-none focus:ring-2 focus:ring-emerald-500"
        >
          <option value="">All Types</option>
          {uniqueTypes.map((t) => (
            <option key={t} value={t}>
              {t}
            </option>
          ))}
        </select>
      </div>
      {/* Loading / Error */}
      {isLoading && <div className="text-center py-12 text-slate-400">Loading printers…</div>}
      {error && (
        <div className="text-center py-12 text-red-400">
          Failed to load printers.
          <button onClick={() => refetch()} className="ml-2 underline hover:text-red-300">
            Retry
          </button>
        </div>
      )}
      {/* Desktop Table */}
      {!isLoading && !error && (
        <>
          <div className="hidden md:block overflow-x-auto rounded-lg border border-slate-700">
            <table className="w-full text-sm">
              <thead className="bg-slate-800 text-slate-300">
                <tr>
                  <th
                    className="px-4 py-3 text-left font-semibold cursor-pointer select-none hover:text-slate-100"
                    onClick={() => handleSort('name')}
                  >
                    Name <SortIndicator field="name" />
                  </th>
                  <th
                    className="px-4 py-3 text-left font-semibold cursor-pointer select-none hover:text-slate-100"
                    onClick={() => handleSort('printer_type')}
                  >
                    Type <SortIndicator field="printer_type" />
                  </th>
                  <th
                    className="px-4 py-3 text-left font-semibold cursor-pointer select-none hover:text-slate-100"
                    onClick={() => handleSort('manufacturer')}
                  >
                    Manufacturer <SortIndicator field="manufacturer" />
                  </th>
                  <th
                    className="px-4 py-3 text-left font-semibold cursor-pointer select-none hover:text-slate-100"
                    onClick={() => handleSort('model')}
                  >
                    Model <SortIndicator field="model" />
                  </th>
                  <th className="px-4 py-3 text-left font-semibold">Connection</th>
                  <th className="px-4 py-3 text-left font-semibold">Moonraker</th>
                  <th className="px-4 py-3 text-left font-semibold">MQTT</th>
                  <th className="px-4 py-3 text-right font-semibold">Actions</th>
                </tr>
              </thead>
              <tbody className="divide-y divide-slate-700">
                {pageItems.length === 0 && (
                  <tr>
                    <td colSpan={8} className="px-4 py-8 text-center text-slate-500">
                      No printers found.
                    </td>
                  </tr>
                )}
                {pageItems.map((p: Printer & { connection_status: ConnStatus }) => (
                  <tr key={p.id} className="bg-slate-800/50 hover:bg-slate-700/50 transition-colors">
                    <td className="px-4 py-3 font-medium text-slate-100">{p.name}</td>
                    <td className="px-4 py-3 text-slate-300">
                      <span className="inline-flex items-center gap-1.5 rounded-md bg-slate-700/50 px-2 py-0.5 text-xs">
                        {p.printer_type?.name ?? '—'}
                      </span>
                    </td>
                    <td className="px-4 py-3 text-slate-300">{p.manufacturer ?? '—'}</td>
                    <td className="px-4 py-3 text-slate-300">{p.model ?? '—'}</td>
                    <td className="px-4 py-3">
                      <StatusBadge status={p.connection_status} />
                    </td>
                    <td className="px-4 py-3 text-slate-300">
                      {p.moonraker_url ? (
                        <span className="inline-flex items-center gap-1.5 text-xs text-blue-300">
                          <Server size={12} />
                          <a
                            href={p.moonraker_url}
                            target="_blank"
                            rel="noopener noreferrer"
                            className="hover:underline truncate max-w-[160px] inline-block"
                            title={p.moonraker_url}
                          >
                            {p.moonraker_url}
                          </a>
                        </span>
                      ) : (
                        <span className="text-slate-500 text-xs">—</span>
                      )}
                    </td>
                    <td className="px-4 py-3">
                      {p.mqtt_broker_host ? (
                        <span className="inline-flex items-center gap-1 text-xs text-slate-300">
                          <Radio size={12} className="text-emerald-400" />
                          {p.mqtt_topic_prefix ? `${p.mqtt_topic_prefix} @ ` : ''}
                          {p.mqtt_broker_host}
                          {p.mqtt_tls_enabled && (
                            <span title="TLS enabled">
                              <ShieldCheck size={12} className="text-emerald-400" />
                            </span>
                          )}
                        </span>
                      ) : (
                        <span className="text-slate-500 text-xs">—</span>
                      )}
                    </td>
                    <td className="px-4 py-3 text-right">
                      <div className="flex items-center justify-end gap-2">
                        <button
                          className="p-1.5 rounded hover:bg-slate-600 text-slate-400 hover:text-blue-400 transition-colors"
                          title="Edit"
                        >
                          <Pencil size={14} />
                        </button>
                        <button
                          onClick={() => setDeleteId(p.id)}
                          className="p-1.5 rounded hover:bg-slate-600 text-slate-400 hover:text-red-400 transition-colors"
                          title="Delete"
                        >
                          <Trash2 size={14} />
                        </button>
                      </div>
                    </td>
                  </tr>
                ))}
              </tbody>
            </table>
          </div>
          {/* Mobile Cards */}
          <div className="md:hidden space-y-3">
            {pageItems.length === 0 && (
              <div className="text-center py-12 text-slate-500">No printers found.</div>
            )}
            {pageItems.map((p: Printer & { connection_status: ConnStatus }) => (
              <div
                key={p.id}
                className="rounded-lg border border-slate-700 bg-slate-800 p-4 space-y-3"
              >
                <div className="flex items-start justify-between">
                  <div>
                    <div className="font-semibold text-slate-100">{p.name}</div>
                    <div className="text-xs text-slate-400 mt-0.5">
                      {p.printer_type?.name ?? '—'} · {p.manufacturer ?? '—'} {p.model ?? ''}
                    </div>
                  </div>
                  <StatusBadge status={p.connection_status} />
                </div>
                {/* Moonraker */}
                {p.moonraker_url && (
                  <div className="flex items-center gap-2 text-sm text-slate-300">
                    <Server size={14} className="text-blue-400 shrink-0" />
                    <a
                      href={p.moonraker_url}
                      target="_blank"
                      rel="noopener noreferrer"
                      className="text-blue-300 hover:underline truncate"
                    >
                      {p.moonraker_url}
                    </a>
                  </div>
                )}
                {/* MQTT */}
                {p.mqtt_broker_host && (
                  <div className="flex items-center gap-2 text-sm text-slate-300">
                    <Radio size={14} className="text-emerald-400 shrink-0" />
                    <span className="truncate">
                      {p.mqtt_topic_prefix ? `${p.mqtt_topic_prefix} @ ` : ''}
                      {p.mqtt_broker_host}
                      {p.mqtt_tls_enabled && (
                        <span title="TLS enabled">
                          <ShieldCheck size={14} className="text-emerald-400 inline ml-1" />
                        </span>
                      )}
                    </span>
                  </div>
                )}
                {/* Actions */}
                <div className="flex items-center justify-end gap-2 pt-1">
                  <button className="flex items-center gap-1 rounded-md bg-slate-700 px-3 py-1.5 text-xs font-medium text-slate-200 hover:bg-slate-600">
                    <Pencil size={12} /> Edit
                  </button>
                  <button
                    onClick={() => setDeleteId(p.id)}
                    className="flex items-center gap-1 rounded-md bg-red-900/30 border border-red-700 px-3 py-1.5 text-xs font-medium text-red-300 hover:bg-red-900/50"
                  >
                    <Trash2 size={12} /> Delete
                  </button>
                </div>
              </div>
            ))}
          </div>
          {/* Pagination */}
          <div className="flex items-center justify-between pt-2">
            <span className="text-sm text-slate-400">
              Showing {page * PAGE_SIZE + 1}–{Math.min((page + 1) * PAGE_SIZE, total)} of {total}
            </span>
            <div className="flex items-center gap-2">
              <button
                onClick={() => setPage((p) => Math.max(0, p - 1))}
                disabled={page === 0}
                className="p-2 rounded-lg bg-slate-800 border border-slate-700 text-slate-300 hover:bg-slate-700 disabled:opacity-40 disabled:cursor-not-allowed transition-colors"
              >
                <ChevronLeft size={16} />
              </button>
              <span className="text-sm text-slate-300 tabular-nums">
                {page + 1} / {totalPages}
              </span>
              <button
                onClick={() => setPage((p) => Math.min(totalPages - 1, p + 1))}
                disabled={page >= totalPages - 1}
                className="p-2 rounded-lg bg-slate-800 border border-slate-700 text-slate-300 hover:bg-slate-700 disabled:opacity-40 disabled:cursor-not-allowed transition-colors"
              >
                <ChevronRight size={16} />
              </button>
            </div>
          </div>
        </>
      )}
      {/* Delete confirmation modal */}
      {deleteId !== null && (
        <div className="fixed inset-0 z-50 flex items-center justify-center bg-black/60 backdrop-blur-sm p-4">
          <div className="w-full max-w-sm rounded-xl bg-slate-800 border border-slate-700 p-6 shadow-2xl space-y-4">
            <div className="flex items-center gap-3">
              <div className="flex h-10 w-10 items-center justify-center rounded-full bg-red-900/30">
                <AlertTriangle size={20} className="text-red-400" />
              </div>
              <div>
                <h3 className="text-lg font-semibold text-slate-100">Delete Printer?</h3>
                <p className="text-sm text-slate-400">This action cannot be undone.</p>
              </div>
            </div>
            <div className="flex justify-end gap-3">
              <button
                onClick={() => setDeleteId(null)}
                className="rounded-lg bg-slate-700 px-4 py-2 text-sm font-medium text-slate-200 hover:bg-slate-600 transition-colors"
              >
                Cancel
              </button>
              <button
                onClick={() => handleDelete(deleteId)}
                className="rounded-lg bg-red-600 px-4 py-2 text-sm font-medium text-white hover:bg-red-500 transition-colors"
              >
                Delete
              </button>
            </div>
          </div>
        </div>
      )}
    </div>
  )
 }
@@ -1,13 +0,0 @@
 import axios from 'axios'
 import type { Printer } from '../types/printer'
 const API_BASE = '/api'
 export async function fetchPrinters(): Promise<Printer[]> {
  const res = await axios.get<{ data: Printer[] }>(`${API_BASE}/printers`)
  return res.data.data
 }
 export async function deletePrinter(id: number): Promise<void> {
  await axios.delete(`${API_BASE}/printers/${id}`)
 }
@@ -1,33 +0,0 @@
 // Extrudex printer domain types
 export interface PrinterType {
  id: number
  name: string
  created_at: string
  updated_at: string
 }
 export interface Printer {
  id: number
  name: string
  printer_type_id: number
  printer_type?: PrinterType
  manufacturer?: string
  model?: string
  moonraker_url?: string
  moonraker_api_key?: string
  mqtt_broker_host?: string
  mqtt_topic_prefix?: string
  mqtt_tls_enabled: boolean
  is_active: boolean
  connection_status?: 'online' | 'offline' | 'unknown'
  created_at: string
  updated_at: string
 }
 export interface ListResponse<T> {
  data: T[]
  total: number
  limit: number
  offset: number
 }
@@ -0,0 +1,36 @@
 [Unit]
 Description=Extrudex Kiosk (Chromium, Go + React frontend)
 After=network-online.target extrudex.service
 Requires=extrudex.service
 [Service]
 Type=simple
 User=pi
 Group=pi
 Environment=DISPLAY=:0
 Environment=XAUTHORITY=/home/pi/.Xauthority
 WorkingDirectory=/home/pi
 ExecStart=/usr/bin/chromium-browser \
    --no-first-run \
    --no-default-browser-check \
    --autoplay-policy=no-user-gesture-required \
    --disable-infobars \
    --disable-window-activation \
    --disable-full-screen-modal \
    --kiosk http://localhost:5081 \
    --disable-features=TranslateUI \
    --touch-events=enabled \
    --enable-pinch
 ExecReload=/bin/kill -HUP $MAINPID
 Restart=always
 RestartSec=10
 # Touchscreen / kiosk
 Environment=QT_QPA_PLATFORM=wayland
 Environment=QT_WAYLAND_SHELL_INTEGRATION=wayland
 [Install]
 WantedBy=multi-user.target
@@ -0,0 +1,12 @@
 [Unit]
 Description=Extrudex Kiosk Session (user-level, seat %i)
 After=graphical-session.target
 [Service]
 Type=simple
 Environment=DISPLAY=:0
 ExecStart=/bin/true
 Restart=on-failure
 [Install]
 WantedBy=graphical-session.target
@@ -0,0 +1,16 @@
 [Unit]
 Description=Extrudex Docker Compose Stack (Go + React)
 After=network-online.target docker.service
 Requires=docker.service
 [Service]
 Type=oneshot
 RemainAfterExit=yes
 WorkingDirectory=/home/pi/extrudex
 ExecStart=/usr/bin/docker compose -f docker-compose.dev.yml up -d
 ExecStop=/usr/bin/docker compose -f docker-compose.dev.yml down
 TimeoutStartSec=120
 TimeoutStopSec=120
 [Install]
 WantedBy=multi-user.target