CUB-133: Build Dashboard page with summary cards

frontend/src/App.tsx

@@ -1,49 +1,14 @@
-import { QueryClient, QueryClientProvider } from '@tanstack/react-query'
-import { BrowserRouter, Routes, Route, NavLink } from 'react-router-dom'
-import { Box, Printer } from 'lucide-react'
-import InventoryPage from './pages/InventoryPage'
-import PrintJobsPage from './pages/PrintJobsPage'
+import { Routes, Route } from 'react-router-dom'
+import Dashboard from './pages/Dashboard'
 
-const queryClient = new QueryClient()
-
-function NavItem({ to, icon: Icon, label }: { to: string; icon: React.ComponentType<{ size?: number }>; label: string }) {
+function App() {
   return (
-    <NavLink
-      to={to}
-      className={({ isActive }) =>
-        `inline-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 border border-emerald-700'
-            : 'text-slate-400 hover:text-slate-200 hover:bg-slate-700/50'
-        }`
-      }
-    >
-      <Icon size={16} /> {label}
-    </NavLink>
+    <div className="min-h-screen bg-slate-900">
+      <Routes>
+        <Route path="/" element={<Dashboard />} />
+      </Routes>
+    </div>
   )
 }
 
-export default function App() {
-  return (
-    <QueryClientProvider client={queryClient}>
-      <BrowserRouter>
-        <div className="min-h-screen bg-slate-900 text-slate-50">
-          <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-6 flex items-center gap-1">
-              <NavItem to="/" icon={Box} label="Inventory" />
-              <NavItem to="/print-jobs" icon={Printer} label="Print Jobs" />
-            </nav>
-          </header>
-          <main className="p-4">
-            <Routes>
-              <Route path="/" element={<InventoryPage />} />
-              <Route path="/print-jobs" element={<PrintJobsPage />} />
-            </Routes>
-          </main>
-        </div>
-      </BrowserRouter>
-    </QueryClientProvider>
-  )
-}
+export default App

frontend/src/components/ColorSwatch.tsx

@@ -1,18 +0,0 @@
-interface ColorSwatchProps {
-  colorHex: string
-  size?: number
-}
-
-export default function ColorSwatch({ colorHex, size = 24 }: ColorSwatchProps) {
-  return (
-    <div
-      className="rounded-full border border-slate-600 shadow-sm inline-block"
-      style={{
-        backgroundColor: colorHex.startsWith('#') ? colorHex : `#${colorHex}`,
-        width: size,
-        height: size,
-      }}
-      title={colorHex}
-    />
-  )
-}

frontend/src/components/LoadingSpinner.tsx

@@ -0,0 +1,8 @@
+export default function LoadingSpinner() {
+  return (
+    <div className="flex flex-col items-center gap-3">
+      <div className="w-10 h-10 border-4 border-emerald-500/30 border-t-emerald-400 rounded-full animate-spin" />
+      <p className="text-slate-400 text-sm">Loading dashboard…</p>
+    </div>
+  )
+}

frontend/src/components/RecentPrints.tsx

@@ -0,0 +1,76 @@
+import type { PrintJob } from '../types'
+import { Clock, FileText } from 'lucide-react'
+
+interface RecentPrintsProps {
+  jobs: PrintJob[]
+}
+
+export default function RecentPrints({ jobs }: RecentPrintsProps) {
+  if (jobs.length === 0) {
+    return (
+      <div className="rounded-xl border border-slate-700 bg-slate-800 p-6 text-center text-slate-400">
+        <FileText size={32} className="mx-auto mb-3 text-slate-500" />
+        <p>No recent print jobs</p>
+      </div>
+    )
+  }
+
+  const statusColor = (status: string) => {
+    switch (status.toLowerCase()) {
+      case 'completed': return 'text-emerald-400 bg-emerald-500/10'
+      case 'in_progress': return 'text-sky-400 bg-sky-500/10'
+      case 'failed': return 'text-red-400 bg-red-500/10'
+      default: return 'text-slate-400 bg-slate-500/10'
+    }
+  }
+
+  return (
+    <div className="rounded-xl border border-slate-700 bg-slate-800 overflow-hidden">
+      <div className="overflow-x-auto">
+        <table className="w-full text-left">
+          <thead>
+            <tr className="border-b border-slate-700">
+              <th className="px-4 py-3 text-sm font-medium text-slate-400">Name</th>
+              <th className="px-4 py-3 text-sm font-medium text-slate-400">Status</th>
+              <th className="px-4 py-3 text-sm font-medium text-slate-400">Duration</th>
+              <th className="px-4 py-3 text-sm font-medium text-slate-400">Filament</th>
+              <th className="px-4 py-3 text-sm font-medium text-slate-400">Cost</th>
+            </tr>
+          </thead>
+          <tbody>
+            {jobs.map((job) => (
+              <tr key={job.id} className="border-b border-slate-700/50 last:border-0 hover:bg-slate-700/30 transition-colors">
+                <td className="px-4 py-3 text-sm text-slate-100 font-medium">{job.name}</td>
+                <td className="px-4 py-3">
+                  <span className={`inline-flex items-center gap-1 px-2 py-1 rounded-full text-xs font-medium ${statusColor(job.status)}`}>
+                    {job.status}
+                  </span>
+                </td>
+                <td className="px-4 py-3 text-sm text-slate-300">
+                  <div className="flex items-center gap-1">
+                    <Clock size={14} />
+                    {formatDuration(job.duration_seconds)}
+                  </div>
+                </td>
+                <td className="px-4 py-3 text-sm text-slate-300">
+                  {job.filament_used_grams?.toFixed(1) ?? '-'} g
+                </td>
+                <td className="px-4 py-3 text-sm text-slate-300">
+                  ${job.cost_usd?.toFixed(2) ?? '-'}
+                </td>
+              </tr>
+            ))}
+          </tbody>
+        </table>
+      </div>
+    </div>
+  )
+}
+
+function formatDuration(seconds: number): string {
+  if (!seconds) return '-'
+  const hrs = Math.floor(seconds / 3600)
+  const mins = Math.floor((seconds % 3600) / 60)
+  if (hrs > 0) return `${hrs}h ${mins}m`
+  return `${mins}m`
+}

frontend/src/components/SummaryCard.tsx

@@ -0,0 +1,31 @@
+import type { LucideIcon } from 'lucide-react'
+
+interface SummaryCardProps {
+  title: string
+  value: string | number
+  icon: LucideIcon
+  color: 'emerald' | 'amber' | 'sky' | 'violet'
+}
+
+const colorMap = {
+  emerald: { bg: 'bg-emerald-500/10', border: 'border-emerald-500/20', text: 'text-emerald-400', icon: 'text-emerald-400' },
+  amber:   { bg: 'bg-amber-500/10',  border: 'border-amber-500/20',  text: 'text-amber-400',  icon: 'text-amber-400' },
+  sky:     { bg: 'bg-sky-500/10',    border: 'border-sky-500/20',    text: 'text-sky-400',    icon: 'text-sky-400' },
+  violet:  { bg: 'bg-violet-500/10', border: 'border-violet-500/20', text: 'text-violet-400', icon: 'text-violet-400' },
+}
+
+export default function SummaryCard({ title, value, icon: Icon, color }: SummaryCardProps) {
+  const c = colorMap[color]
+
+  return (
+    <div className={`rounded-xl border ${c.border} ${c.bg} p-5 flex items-start justify-between`}>
+      <div>
+        <p className="text-sm font-medium text-slate-400 mb-1">{title}</p>
+        <p className={`text-3xl font-bold ${c.text}`}>{value}</p>
+      </div>
+      <div className={`p-2 rounded-lg ${c.bg}`}>
+        <Icon size={24} className={c.icon} />
+      </div>
+    </div>
+  )
+}

frontend/src/main.tsx

@@ -1,10 +1,25 @@
 import { StrictMode } from 'react'
 import { createRoot } from 'react-dom/client'
+import { QueryClient, QueryClientProvider } from '@tanstack/react-query'
+import { BrowserRouter } from 'react-router-dom'
 import './index.css'
 import App from './App'
 
+const queryClient = new QueryClient({
+  defaultOptions: {
+    queries: {
+      staleTime: 30_000,
+      refetchOnWindowFocus: false,
+    },
+  },
+})
+
 createRoot(document.getElementById('root')!).render(
   <StrictMode>
-    <App />
+    <QueryClientProvider client={queryClient}>
+      <BrowserRouter>
+        <App />
+      </BrowserRouter>
+    </QueryClientProvider>
   </StrictMode>,
 )

frontend/src/pages/Dashboard.tsx

@@ -0,0 +1,139 @@
+import { useQuery } from '@tanstack/react-query'
+import { getFilaments, getPrintJobs } from '../services/api'
+import SummaryCard from '../components/SummaryCard'
+import RecentPrints from '../components/RecentPrints'
+import LoadingSpinner from '../components/LoadingSpinner'
+import { Package, AlertTriangle, Printer, DollarSign, Plus, List } from 'lucide-react'
+
+export default function Dashboard() {
+  const {
+    data: filamentData,
+    isLoading: filamentLoading,
+    error: filamentError,
+  } = useQuery({
+    queryKey: ['filaments', 'count'],
+    queryFn: () => getFilaments({ limit: 1 }),
+  })
+
+  const {
+    data: lowStockData,
+    isLoading: lowStockLoading,
+    error: lowStockError,
+  } = useQuery({
+    queryKey: ['filaments', 'lowStock'],
+    queryFn: () => getFilaments({ low_stock: true, limit: 1 }),
+  })
+
+  const {
+    data: recentPrints,
+    isLoading: printsLoading,
+    error: printsError,
+  } = useQuery({
+    queryKey: ['printJobs', 'recent'],
+    queryFn: () => getPrintJobs({ limit: 5 }),
+  })
+
+  const {
+    data: allPrints,
+    isLoading: costLoading,
+    error: costError,
+  } = useQuery({
+    queryKey: ['printJobs', 'all'],
+    queryFn: () => getPrintJobs({ limit: 1000 }),
+  })
+
+  const totalSpools = filamentData?.total ?? 0
+  const lowStockCount = lowStockData?.total ?? 0
+  const recentPrintJobs = recentPrints?.data ?? []
+
+  // Calculate cost this month from all print jobs
+  const now = new Date()
+  const currentMonth = now.getMonth()
+  const currentYear = now.getFullYear()
+  const monthlyCost =
+    allPrints?.data
+      .filter((job) => {
+        const d = new Date(job.started_at)
+        return d.getMonth() === currentMonth && d.getFullYear() === currentYear
+      })
+      .reduce((sum, job) => sum + (job.cost_usd ?? 0), 0) ?? 0
+
+  const isLoading = filamentLoading || lowStockLoading || printsLoading || costLoading
+  const error = filamentError || lowStockError || printsError || costError
+
+  if (isLoading) {
+    return (
+      <div className="min-h-screen flex items-center justify-center bg-slate-900">
+        <LoadingSpinner />
+      </div>
+    )
+  }
+
+  if (error) {
+    return (
+      <div className="min-h-screen flex items-center justify-center bg-slate-900">
+        <div className="p-6 rounded-lg bg-red-900/30 border border-red-500 text-red-200 max-w-md">
+          <h2 className="text-xl font-bold mb-2">Error</h2>
+          <p className="text-sm">{(error as Error).message || 'Failed to load dashboard data.'}</p>
+        </div>
+      </div>
+    )
+  }
+
+  return (
+    <div className="min-h-screen bg-slate-900 p-4 md:p-8">
+      <div className="max-w-6xl mx-auto">
+        <header className="mb-8">
+          <h1 className="text-3xl font-bold text-emerald-400 mb-2">Dashboard</h1>
+          <p className="text-slate-400">Overview of your Extrudex inventory and prints</p>
+        </header>
+
+        {/* Summary Cards Grid */}
+        <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-4 gap-4 mb-8">
+          <SummaryCard
+            title="Total Spools"
+            value={totalSpools}
+            icon={Package}
+            color="emerald"
+          />
+          <SummaryCard
+            title="Low Stock"
+            value={lowStockCount}
+            icon={AlertTriangle}
+            color={lowStockCount > 0 ? 'amber' : 'emerald'}
+          />
+          <SummaryCard
+            title="Recent Prints"
+            value={recentPrintJobs.length}
+            icon={Printer}
+            color="sky"
+          />
+          <SummaryCard
+            title="Cost This Month"
+            value={`$${monthlyCost.toFixed(2)}`}
+            icon={DollarSign}
+            color="violet"
+          />
+        </div>
+
+        {/* Quick Actions */}
+        <div className="flex flex-wrap gap-3 mb-8">
+          <button className="flex items-center gap-2 px-4 py-2 rounded-lg bg-emerald-600 hover:bg-emerald-500 text-white font-medium transition-colors active:scale-95 touch-manipulation">
+            <Plus size={18} />
+            Add Spool
+          </button>
+          <button className="flex items-center gap-2 px-4 py-2 rounded-lg bg-slate-700 hover:bg-slate-600 text-slate-100 font-medium transition-colors active:scale-95 touch-manipulation">
+            <List size={18} />
+            View Inventory
+          </button>
+        </div>
+
+        {/* Recent Prints Section */}
+        <section>
+          <h2 className="text-xl font-semibold text-slate-100 mb-4">Recent Prints</h2>
+          <RecentPrints jobs={recentPrintJobs} />
+        </section>
+      </div>
+    </div>
+  )
+}

frontend/src/pages/InventoryPage.tsx

@@ -1,339 +0,0 @@
-import { useState, useMemo } from 'react'
-import { useQuery } from '@tanstack/react-query'
-import { Search, Filter, ChevronLeft, ChevronRight, Trash2, Pencil, Plus, AlertTriangle } from 'lucide-react'
-import ColorSwatch from '../components/ColorSwatch'
-import { fetchFilaments, deleteFilament } from '../services/filamentService'
-import type { FilamentSpool, FilamentFilter } from '../types/filament'
-
-const PAGE_SIZE = 20
-
-type SortField = 'name' | 'remaining_grams' | 'cost_usd'
-type SortDir = 'asc' | 'desc'
-
-export default function InventoryPage() {
-  const [search, setSearch] = useState('')
-  const [material, setMaterial] = useState('')
-  const [finish, setFinish] = useState('')
-  const [lowStockOnly, setLowStockOnly] = useState(false)
-  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 filter: FilamentFilter = useMemo(() => ({
-    material: material || undefined,
-    finish: finish || undefined,
-    low_stock: lowStockOnly,
-    sort_by: sortBy,
-    sort_dir: sortDir,
-    limit: PAGE_SIZE,
-    offset: page * PAGE_SIZE,
-  }), [material, finish, lowStockOnly, sortBy, sortDir, page])
-
-  const { data, isLoading, error, refetch } = useQuery({
-    queryKey: ['filaments', filter],
-    queryFn: () => fetchFilaments(filter),
-  })
-
-  const filaments = data?.data ?? []
-  const total = data?.total ?? 0
-  const totalPages = Math.max(1, Math.ceil(total / PAGE_SIZE))
-
-  // Client-side search filter (name/barcode) since backend may not support it yet.
-  const filtered = useMemo(() => {
-    if (!search.trim()) return filaments
-    const q = search.toLowerCase()
-    return filaments.filter(
-      (f: FilamentSpool) =>
-        f.name.toLowerCase().includes(q) ||
-        (f.barcode && f.barcode.toLowerCase().includes(q))
-    )
-  }, [filaments, search])
-
-  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 deleteFilament(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>
-  }
-
-  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">Filament Inventory</h2>
-          <p className="text-sm text-slate-400">{total} spool(s) total</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 Spool
-        </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 or barcode…"
-            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>
-
-        {/* Material filter */}
-        <select
-          value={material}
-          onChange={e => { setMaterial(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 Materials</option>
-          <option value="PLA">PLA</option>
-          <option value="PETG">PETG</option>
-          <option value="ABS">ABS</option>
-          <option value="TPU">TPU</option>
-          <option value="ASA">ASA</option>
-          <option value="Nylon">Nylon</option>
-          <option value="PC">PC</option>
-        </select>
-
-        {/* Finish filter */}
-        <select
-          value={finish}
-          onChange={e => { setFinish(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 Finishes</option>
-          <option value="Basic">Basic</option>
-          <option value="Silk">Silk</option>
-          <option value="Matte">Matte</option>
-          <option value="Glossy">Glossy</option>
-          <option value="Wood">Wood</option>
-          <option value="Marble">Marble</option>
-        </select>
-
-        {/* Low stock toggle */}
-        <label className="inline-flex items-center gap-2 rounded-lg bg-slate-800 border border-slate-700 px-3 py-2 text-sm text-slate-100 cursor-pointer select-none hover:bg-slate-750">
-          <Filter size={14} className="text-amber-400" />
-          <input
-            type="checkbox"
-            checked={lowStockOnly}
-            onChange={e => { setLowStockOnly(e.target.checked); setPage(0) }}
-            className="accent-amber-500"
-          />
-          Low Stock Only
-        </label>
-      </div>
-
-      {/* Loading / Error */}
-      {isLoading && (
-        <div className="text-center py-12 text-slate-400">Loading spools…</div>
-      )}
-      {error && (
-        <div className="text-center py-12 text-red-400">
-          Failed to load inventory.
-          <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">Material</th>
-                  <th className="px-4 py-3 text-left font-semibold">Finish</th>
-                  <th className="px-4 py-3 text-left font-semibold">Color</th>
-                  <th className="px-4 py-3 text-right font-semibold cursor-pointer select-none hover:text-slate-100" onClick={() => handleSort('remaining_grams')}>
-                    Remaining <SortIndicator field="remaining_grams" />
-                  </th>
-                  <th className="px-4 py-3 text-right font-semibold cursor-pointer select-none hover:text-slate-100" onClick={() => handleSort('cost_usd')}>
-                    Cost <SortIndicator field="cost_usd" />
-                  </th>
-                  <th className="px-4 py-3 text-center font-semibold">Status</th>
-                  <th className="px-4 py-3 text-right font-semibold">Actions</th>
-                </tr>
-              </thead>
-              <tbody className="divide-y divide-slate-700">
-                {filtered.length === 0 && (
-                  <tr>
-                    <td colSpan={8} className="px-4 py-8 text-center text-slate-500">No spools found.</td>
-                  </tr>
-                )}
-                {filtered.map((spool: FilamentSpool) => {
-                  const isLow = spool.remaining_grams <= spool.low_stock_threshold_grams
-                  return (
-                    <tr key={spool.id} className={`${isLow ? 'bg-red-900/20' : 'bg-slate-800/50'} hover:bg-slate-700/50 transition-colors`}>
-                      <td className="px-4 py-3 font-medium text-slate-100">{spool.name}</td>
-                      <td className="px-4 py-3 text-slate-300">{spool.material_base?.name ?? '—'}</td>
-                      <td className="px-4 py-3 text-slate-300">{spool.material_finish?.name ?? '—'}</td>
-                      <td className="px-4 py-3">
-                        <div className="flex items-center gap-2">
-                          <ColorSwatch colorHex={spool.color_hex} size={20} />
-                          <span className="text-xs text-slate-400 uppercase">{spool.color_hex}</span>
-                        </div>
-                      </td>
-                      <td className="px-4 py-3 text-right tabular-nums text-slate-200">{spool.remaining_grams.toLocaleString()} g</td>
-                      <td className="px-4 py-3 text-right tabular-nums text-slate-300">{spool.cost_usd != null ? `$${spool.cost_usd.toFixed(2)}` : '—'}</td>
-                      <td className="px-4 py-3 text-center">
-                        {isLow ? (
-                          <span className="inline-flex items-center gap-1 rounded-full bg-red-900/50 border border-red-700 px-2 py-0.5 text-xs font-medium text-red-300">
-                            <AlertTriangle size={12} /> Low
-                          </span>
-                        ) : (
-                          <span className="inline-flex items-center rounded-full bg-emerald-900/30 border border-emerald-700 px-2 py-0.5 text-xs font-medium text-emerald-300">OK</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(spool.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">
-            {filtered.length === 0 && (
-              <div className="text-center py-12 text-slate-500">No spools found.</div>
-            )}
-            {filtered.map((spool: FilamentSpool) => {
-              const isLow = spool.remaining_grams <= spool.low_stock_threshold_grams
-              return (
-                <div key={spool.id} className={`rounded-lg border ${isLow ? 'border-red-700 bg-red-900/10' : 'border-slate-700 bg-slate-800'} p-4 space-y-2`}>
-                  <div className="flex items-start justify-between">
-                    <div>
-                      <div className="font-semibold text-slate-100">{spool.name}</div>
-                      <div className="text-xs text-slate-400 mt-0.5">{spool.material_base?.name ?? '—'} · {spool.material_finish?.name ?? '—'}</div>
-                    </div>
-                    {isLow ? (
-                      <span className="inline-flex items-center gap-1 rounded-full bg-red-900/50 border border-red-700 px-2 py-0.5 text-xs font-medium text-red-300">
-                        <AlertTriangle size={12} /> Low
-                      </span>
-                    ) : (
-                      <span className="inline-flex items-center rounded-full bg-emerald-900/30 border border-emerald-700 px-2 py-0.5 text-xs font-medium text-emerald-300">OK</span>
-                    )}
-                  </div>
-
-                  <div className="flex items-center gap-3 text-sm">
-                    <div className="flex items-center gap-2">
-                      <ColorSwatch colorHex={spool.color_hex} size={20} />
-                      <span className="text-slate-400 uppercase text-xs">{spool.color_hex}</span>
-                    </div>
-                  </div>
-
-                  <div className="flex items-center justify-between text-sm">
-                    <span className="text-slate-400">Remaining: <span className="text-slate-200 font-medium tabular-nums">{spool.remaining_grams.toLocaleString()} g</span></span>
-                    <span className="text-slate-400">{spool.cost_usd != null ? `$${spool.cost_usd.toFixed(2)}` : '—'}</span>
-                  </div>
-
-                  <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(spool.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 Spool?</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>
-  )
-}

frontend/src/pages/PrintJobsPage.tsx

@@ -1,283 +0,0 @@
-import { useState, useMemo } from 'react'
-import { useQuery } from '@tanstack/react-query'
-import { Search, Filter, ChevronLeft, ChevronRight, Loader2 } from 'lucide-react'
-import { fetchPrintJobs } from '../services/printJobService'
-import type { PrintJob, PrintJobFilter, PrintJobStatus } from '../types/printJob'
-
-const PAGE_SIZE = 20
-
-type SortField = 'name' | 'started_at' | 'duration_seconds' | 'filament_grams_used' | 'cost_usd'
-type SortDir = 'asc' | 'desc'
-
-// ── Status helpers ────────────────────────────────────────────────────────────
-
-const STATUS_CONFIG: Record<PrintJobStatus, { label: string; badge: string; icon: string }> = {
-  pending:   { label: 'Pending',   badge: 'bg-slate-700 text-slate-300 border-slate-600',       icon: '⏳' },
-  printing:  { label: 'Printing',  badge: 'bg-blue-900/40 text-blue-300 border-blue-700',       icon: '🖨️' },
-  completed: { label: 'Completed', badge: 'bg-emerald-900/30 text-emerald-300 border-emerald-700', icon: '✅' },
-  failed:    { label: 'Failed',    badge: 'bg-red-900/40 text-red-300 border-red-700',          icon: '❌' },
-}
-
-function StatusBadge({ status }: { status: PrintJobStatus }) {
-  const cfg = STATUS_CONFIG[status] ?? STATUS_CONFIG.pending
-  return (
-    <span className={`inline-flex items-center gap-1 rounded-full border px-2 py-0.5 text-xs font-medium ${cfg.badge}`}>
-      <span className="text-xs">{cfg.icon}</span> {cfg.label}
-    </span>
-  )
-}
-
-// ── Duration formatter ────────────────────────────────────────────────────────
-
-function formatDuration(totalSeconds?: number): string {
-  if (totalSeconds == null || totalSeconds <= 0) return '—'
-  const h = Math.floor(totalSeconds / 3600)
-  const m = Math.floor((totalSeconds % 3600) / 60)
-  const s = totalSeconds % 60
-  if (h > 0) return `${h}h ${m}m`
-  if (m > 0) return `${m}m ${s}s`
-  return `${s}s`
-}
-
-function formatDateTime(iso: string): string {
-  const d = new Date(iso)
-  return d.toLocaleString(undefined, {
-    month: 'short', day: 'numeric',
-    hour: 'numeric', minute: '2-digit',
-  })
-}
-
-// ── Component ─────────────────────────────────────────────────────────────────
-
-export default function PrintJobsPage() {
-  const [search, setSearch] = useState('')
-  const [statusFilter, setStatusFilter] = useState<PrintJobStatus | ''>('')
-  const [printerFilter, setPrinterFilter] = useState('')
-  const [sortBy, setSortBy] = useState<SortField>('started_at')
-  const [sortDir, setSortDir] = useState<SortDir>('desc')
-  const [page, setPage] = useState(0)
-
-  const filter: PrintJobFilter = useMemo(() => ({
-    status: statusFilter || undefined,
-    printer: printerFilter || undefined,
-    sort_by: sortBy,
-    sort_dir: sortDir,
-    limit: PAGE_SIZE,
-    offset: page * PAGE_SIZE,
-  }), [statusFilter, printerFilter, sortBy, sortDir, page])
-
-  const { data, isLoading, error, refetch } = useQuery({
-    queryKey: ['printJobs', filter],
-    queryFn: () => fetchPrintJobs(filter),
-  })
-
-  const jobs = data?.data ?? []
-  const total = data?.total ?? 0
-  const totalPages = Math.max(1, Math.ceil(total / PAGE_SIZE))
-
-  // Client-side search (name + printer name)
-  const filtered = useMemo(() => {
-    if (!search.trim()) return jobs
-    const q = search.toLowerCase()
-    return jobs.filter(
-      (j: PrintJob) =>
-        j.name.toLowerCase().includes(q) ||
-        j.printer_name.toLowerCase().includes(q)
-    )
-  }, [jobs, search])
-
-  const handleSort = (field: SortField) => {
-    if (sortBy === field) {
-      setSortDir(prev => (prev === 'asc' ? 'desc' : 'asc'))
-    } else {
-      setSortBy(field)
-      setSortDir('asc')
-    }
-    setPage(0)
-  }
-
-  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>
-  }
-
-  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">Print Jobs</h2>
-          <p className="text-sm text-slate-400">{total} job(s) total</p>
-        </div>
-      </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 job or printer name…"
-            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 PrintJobStatus | ''); 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 Statuses</option>
-          <option value="pending">Pending</option>
-          <option value="printing">Printing</option>
-          <option value="completed">Completed</option>
-          <option value="failed">Failed</option>
-        </select>
-
-        {/* Printer filter */}
-        <input
-          type="text"
-          placeholder="Filter by printer…"
-          value={printerFilter}
-          onChange={e => { setPrinterFilter(e.target.value); setPage(0) }}
-          className="rounded-lg bg-slate-800 border border-slate-700 px-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 min-w-[160px]"
-        />
-
-        {/* Filter indicator */}
-        {(statusFilter || printerFilter) && (
-          <span className="inline-flex items-center gap-1 rounded-lg bg-emerald-900/30 border border-emerald-700 px-3 py-2 text-xs text-emerald-300">
-            <Filter size={14} />
-            {[statusFilter && `Status: ${statusFilter}`, printerFilter && `Printer: ${printerFilter}`].filter(Boolean).join(' · ')}
-          </span>
-        )}
-      </div>
-
-      {/* Loading / Error */}
-      {isLoading && (
-        <div className="flex items-center justify-center py-12 gap-2 text-slate-400">
-          <Loader2 size={18} className="animate-spin" /> Loading print jobs…
-        </div>
-      )}
-      {error && (
-        <div className="text-center py-12 text-red-400">
-          Failed to load print jobs.
-          <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')}>
-                    Job <SortIndicator field="name" />
-                  </th>
-                  <th className="px-4 py-3 text-left font-semibold">Printer</th>
-                  <th className="px-4 py-3 text-left font-semibold">Status</th>
-                  <th className="px-4 py-3 text-left font-semibold cursor-pointer select-none hover:text-slate-100" onClick={() => handleSort('started_at')}>
-                    Started <SortIndicator field="started_at" />
-                  </th>
-                  <th className="px-4 py-3 text-right font-semibold cursor-pointer select-none hover:text-slate-100" onClick={() => handleSort('duration_seconds')}>
-                    Duration <SortIndicator field="duration_seconds" />
-                  </th>
-                  <th className="px-4 py-3 text-right font-semibold cursor-pointer select-none hover:text-slate-100" onClick={() => handleSort('filament_grams_used')}>
-                    Filament <SortIndicator field="filament_grams_used" />
-                  </th>
-                  <th className="px-4 py-3 text-right font-semibold cursor-pointer select-none hover:text-slate-100" onClick={() => handleSort('cost_usd')}>
-                    Cost <SortIndicator field="cost_usd" />
-                  </th>
-                </tr>
-              </thead>
-              <tbody className="divide-y divide-slate-700">
-                {filtered.length === 0 && (
-                  <tr>
-                    <td colSpan={7} className="px-4 py-8 text-center text-slate-500">No print jobs found.</td>
-                  </tr>
-                )}
-                {filtered.map((job: PrintJob) => (
-                  <tr key={job.id} className="bg-slate-800/50 hover:bg-slate-700/50 transition-colors">
-                    <td className="px-4 py-3 font-medium text-slate-100">{job.name}</td>
-                    <td className="px-4 py-3 text-slate-300">{job.printer_name}</td>
-                    <td className="px-4 py-3"><StatusBadge status={job.status} /></td>
-                    <td className="px-4 py-3 text-slate-300">{formatDateTime(job.started_at)}</td>
-                    <td className="px-4 py-3 text-right tabular-nums text-slate-300">{formatDuration(job.duration_seconds)}</td>
-                    <td className="px-4 py-3 text-right tabular-nums text-slate-300">{job.filament_grams_used != null ? `${job.filament_grams_used.toLocaleString()} g` : '—'}</td>
-                    <td className="px-4 py-3 text-right tabular-nums text-slate-300">{job.cost_usd != null ? `$${job.cost_usd.toFixed(2)}` : '—'}</td>
-                  </tr>
-                ))}
-              </tbody>
-            </table>
-          </div>
-
-          {/* Mobile Cards */}
-          <div className="md:hidden space-y-3">
-            {filtered.length === 0 && (
-              <div className="text-center py-12 text-slate-500">No print jobs found.</div>
-            )}
-            {filtered.map((job: PrintJob) => (
-              <div key={job.id} className="rounded-lg border border-slate-700 bg-slate-800 p-4 space-y-3">
-                <div className="flex items-start justify-between">
-                  <div>
-                    <div className="font-semibold text-slate-100">{job.name}</div>
-                    <div className="text-xs text-slate-400 mt-0.5">{job.printer_name}</div>
-                  </div>
-                  <StatusBadge status={job.status} />
-                </div>
-
-                <div className="grid grid-cols-2 gap-2 text-sm">
-                  <div>
-                    <span className="text-slate-500 text-xs">Started</span>
-                    <div className="text-slate-300">{formatDateTime(job.started_at)}</div>
-                  </div>
-                  <div>
-                    <span className="text-slate-500 text-xs">Duration</span>
-                    <div className="text-slate-300 tabular-nums">{formatDuration(job.duration_seconds)}</div>
-                  </div>
-                  <div>
-                    <span className="text-slate-500 text-xs">Filament</span>
-                    <div className="text-slate-300 tabular-nums">{job.filament_grams_used != null ? `${job.filament_grams_used.toLocaleString()} g` : '—'}</div>
-                  </div>
-                  <div>
-                    <span className="text-slate-500 text-xs">Cost</span>
-                    <div className="text-slate-300 tabular-nums">{job.cost_usd != null ? `$${job.cost_usd.toFixed(2)}` : '—'}</div>
-                  </div>
-                </div>
-              </div>
-            ))}
-          </div>
-
-          {/* Pagination */}
-          <div className="flex items-center justify-between pt-2">
-            <span className="text-sm text-slate-400">
-              Showing {total === 0 ? 0 : 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>
-        </>
-      )}
-    </div>
-  )
-}

frontend/src/services/api.ts

@@ -0,0 +1,19 @@
+import axios from 'axios'
+import type { ListResponse, FilamentSpool, PrintJob } from '../types'
+
+const api = axios.create({
+  baseURL: '/api',
+  headers: { 'Content-Type': 'application/json' },
+})
+
+export async function getFilaments(params?: { low_stock?: boolean; limit?: number; offset?: number }) {
+  const res = await api.get<ListResponse<FilamentSpool>>('/filaments', { params })
+  return res.data
+}
+
+export async function getPrintJobs(params?: { limit?: number; offset?: number }) {
+  const res = await api.get<ListResponse<PrintJob>>('/print-jobs', { params })
+  return res.data
+}
+
+export default api

frontend/src/services/filamentService.ts

@@ -1,24 +0,0 @@
-import axios from 'axios'
-import type { FilamentSpool, ListResponse, FilamentFilter } from '../types/filament'
-
-const API_BASE = '/api'
-
-export async function fetchFilaments(filter: FilamentFilter): Promise<ListResponse<FilamentSpool>> {
-  const params = new URLSearchParams()
-  if (filter.material) params.set('material', filter.material)
-  if (filter.finish) params.set('finish', filter.finish)
-  if (filter.color) params.set('color', filter.color)
-  if (filter.low_stock) params.set('low_stock', 'true')
-  if (filter.search) params.set('search', filter.search)
-  if (filter.sort_by) params.set('sort_by', filter.sort_by)
-  if (filter.sort_dir) params.set('sort_dir', filter.sort_dir)
-  if (filter.limit !== undefined) params.set('limit', String(filter.limit))
-  if (filter.offset !== undefined) params.set('offset', String(filter.offset))
-
-  const res = await axios.get<ListResponse<FilamentSpool>>(`${API_BASE}/filaments?${params.toString()}`)
-  return res.data
-}
-
-export async function deleteFilament(id: number): Promise<void> {
-  await axios.delete(`${API_BASE}/filaments/${id}`)
-}

frontend/src/services/printJobService.ts

@@ -1,17 +0,0 @@
-import axios from 'axios'
-import type { PrintJob, ListResponse, PrintJobFilter } from '../types/printJob'
-
-const API_BASE = '/api'
-
-export async function fetchPrintJobs(filter: PrintJobFilter): Promise<ListResponse<PrintJob>> {
-  const params = new URLSearchParams()
-  if (filter.status) params.set('status', filter.status)
-  if (filter.printer) params.set('printer', filter.printer)
-  if (filter.sort_by) params.set('sort_by', filter.sort_by)
-  if (filter.sort_dir) params.set('sort_dir', filter.sort_dir)
-  if (filter.limit !== undefined) params.set('limit', String(filter.limit))
-  if (filter.offset !== undefined) params.set('offset', String(filter.offset))
-
-  const res = await axios.get<ListResponse<PrintJob>>(`${API_BASE}/print-jobs?${params.toString()}`)
-  return res.data
-}

frontend/src/types/filament.ts

@@ -1,72 +0,0 @@
-// Extrudex domain types
-
-export interface MaterialBase {
-  id: number
-  name: string
-  density_g_cm3: number
-  extrusion_temp_min?: number
-  extrusion_temp_max?: number
-  bed_temp_min?: number
-  bed_temp_max?: number
-  created_at: string
-  updated_at: string
-}
-
-export interface MaterialFinish {
-  id: number
-  name: string
-  description?: string
-  created_at: string
-  updated_at: string
-}
-
-export interface MaterialModifier {
-  id: number
-  name: string
-  description?: string
-  created_at: string
-  updated_at: string
-}
-
-export interface FilamentSpool {
-  id: number
-  name: string
-  material_base_id: number
-  material_base?: MaterialBase
-  material_finish_id: number
-  material_finish?: MaterialFinish
-  material_modifier_id?: number
-  material_modifier?: MaterialModifier
-  color_hex: string
-  brand?: string
-  diameter_mm: number
-  initial_grams: number
-  remaining_grams: number
-  spool_weight_grams?: number
-  cost_usd?: number
-  low_stock_threshold_grams: number
-  notes?: string
-  barcode?: string
-  deleted_at?: string
-  created_at: string
-  updated_at: string
-}
-
-export interface ListResponse<T> {
-  data: T[]
-  total: number
-  limit: number
-  offset: number
-}
-
-export interface FilamentFilter {
-  material?: string
-  finish?: string
-  color?: string
-  low_stock?: boolean
-  search?: string
-  sort_by?: string
-  sort_dir?: 'asc' | 'desc'
-  limit?: number
-  offset?: number
-}

frontend/src/types/index.ts

@@ -0,0 +1,42 @@
+export interface FilamentSpool {
+  id: number;
+  name: string;
+  material_base_id: number;
+  material_finish_id: number;
+  material_modifier_id: number;
+  color_hex: string;
+  brand: string;
+  diameter_mm: number;
+  initial_grams: number;
+  remaining_grams: number;
+  spool_weight_grams: number;
+  cost_usd: number;
+  low_stock_threshold_grams: number;
+  notes: string;
+  barcode: string;
+  created_at: string;
+  updated_at: string;
+  deleted_at: string | null;
+}
+
+export interface PrintJob {
+  id: number;
+  name: string;
+  printer_id: number;
+  filament_id: number;
+  status: string;
+  duration_seconds: number;
+  filament_used_grams: number;
+  cost_usd: number;
+  started_at: string;
+  completed_at: string | null;
+  created_at: string;
+  updated_at: string;
+}
+
+export interface ListResponse<T> {
+  data: T[];
+  total: number;
+  limit: number;
+  offset: number;
+}

frontend/src/types/printJob.ts

@@ -1,32 +0,0 @@
-// Print Job domain types
-
-export type PrintJobStatus = 'pending' | 'printing' | 'completed' | 'failed'
-
-export interface PrintJob {
-  id: number
-  name: string
-  printer_name: string
-  status: PrintJobStatus
-  started_at: string
-  duration_seconds?: number
-  filament_grams_used?: number
-  cost_usd?: number
-  created_at: string
-  updated_at: string
-}
-
-export interface ListResponse<T> {
-  data: T[]
-  total: number
-  limit: number
-  offset: number
-}
-
-export interface PrintJobFilter {
-  status?: PrintJobStatus
-  printer?: string
-  sort_by?: string
-  sort_dir?: 'asc' | 'desc'
-  limit?: number
-  offset?: number
-}

frontend/tsconfig.json

@@ -15,6 +15,7 @@
     "noUnusedLocals": true,
     "noUnusedParameters": true,
     "noFallthroughCasesInSwitch": true,
+    "ignoreDeprecations": "5.0",
     "baseUrl": ".",
     "paths": {
       "@/*": ["src/*"]