Merge pull request 'CUB-133: Build Dashboard page with summary cards' (#42) from agent/rex/CUB-133-dashboard-page into dev

Reviewed-on: #42

frontend/src/App.tsx

@@ -1,7 +1,7 @@
 import { QueryClient, QueryClientProvider } from '@tanstack/react-query'
 import { BrowserRouter, Routes, Route } from 'react-router-dom'
+import Dashboard from './pages/Dashboard'
 import InventoryPage from './pages/InventoryPage'
-import FilamentDetailPage from './pages/FilamentDetailPage'
 
 const queryClient = new QueryClient()
 
@@ -16,8 +16,8 @@ export default function App() {
           </header>
           <main className="p-4">
             <Routes>
-              <Route path="/" element={<InventoryPage />} />
-              <Route path="/filament/:id" element={<FilamentDetailPage />} />
+              <Route path="/" element={<Dashboard />} />
+              <Route path="/inventory" element={<InventoryPage />} />
             </Routes>
           </main>
         </div>

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/FilamentDetailPage.tsx

@@ -1,391 +0,0 @@
-import { useState } from 'react'
-import { useParams, useNavigate } from 'react-router-dom'
-import { useQuery, useQueryClient } from '@tanstack/react-query'
-import { ArrowLeft, Pencil, Trash2, AlertTriangle, Loader2, Archive } from 'lucide-react'
-import ColorSwatch from '../components/ColorSwatch'
-import { fetchFilamentById, fetchUsageLogs, deleteFilament } from '../services/filamentService'
-import type { UsageLog } from '../types/filament'
-
-export default function FilamentDetailPage() {
-  const { id } = useParams<{ id: string }>()
-  const spoolId = Number(id)
-  const navigate = useNavigate()
-  const queryClient = useQueryClient()
-  const [deleteConfirm, setDeleteConfirm] = useState(false)
-  const [deleting, setDeleting] = useState(false)
-
-  const {
-    data: spool,
-    isLoading: spoolLoading,
-    error: spoolError,
-    refetch: refetchSpool,
-  } = useQuery({
-    queryKey: ['filament', spoolId],
-    queryFn: () => fetchFilamentById(spoolId),
-    enabled: !isNaN(spoolId),
-  })
-
-  const {
-    data: usageLogs,
-    isLoading: usageLoading,
-    error: usageError,
-    refetch: refetchUsage,
-  } = useQuery({
-    queryKey: ['usage-logs', spoolId],
-    queryFn: () => fetchUsageLogs(spoolId),
-    enabled: !isNaN(spoolId),
-  })
-
-  const handleDelete = async () => {
-    setDeleting(true)
-    try {
-      await deleteFilament(spoolId)
-      queryClient.invalidateQueries({ queryKey: ['filaments'] })
-      navigate('/')
-    } catch {
-      setDeleting(false)
-      setDeleteConfirm(false)
-    }
-  }
-
-  // ── Loading state ──
-  if (spoolLoading) {
-    return (
-      <div className="flex flex-col items-center justify-center py-24 gap-3 text-slate-400">
-        <Loader2 size={32} className="animate-spin text-emerald-400" />
-        <span>Loading spool details…</span>
-      </div>
-    )
-  }
-
-  // ── Error state ──
-  if (spoolError || !spool) {
-    return (
-      <div className="flex flex-col items-center justify-center py-24 gap-4">
-        <div className="flex h-14 w-14 items-center justify-center rounded-full bg-red-900/30">
-          <AlertTriangle size={28} className="text-red-400" />
-        </div>
-        <p className="text-red-400 font-medium">Failed to load spool details.</p>
-        <div className="flex gap-3">
-          <button
-            onClick={() => refetchSpool()}
-            className="rounded-lg bg-slate-700 px-4 py-2 text-sm font-medium text-slate-200 hover:bg-slate-600 transition-colors"
-          >
-            Retry
-          </button>
-          <button
-            onClick={() => navigate('/')}
-            className="rounded-lg bg-slate-800 border border-slate-700 px-4 py-2 text-sm font-medium text-slate-300 hover:bg-slate-700 transition-colors"
-          >
-            Back to Inventory
-          </button>
-        </div>
-      </div>
-    )
-  }
-
-  const pctRemaining = spool.initial_grams > 0
-    ? (spool.remaining_grams / spool.initial_grams) * 100
-    : 0
-  const isLow = spool.remaining_grams <= (spool.low_stock_threshold_grams || 0)
-
-  return (
-    <div className="space-y-6">
-      {/* ── Header Bar ── */}
-      <div className="flex flex-col sm:flex-row sm:items-center sm:justify-between gap-3">
-        <button
-          onClick={() => navigate('/')}
-          className="inline-flex items-center gap-2 rounded-lg bg-slate-800 border border-slate-700 px-3 py-2 text-sm font-medium text-slate-200 hover:bg-slate-700 active:bg-slate-600 transition-colors w-fit"
-        >
-          <ArrowLeft size={16} />
-          Back to Inventory
-        </button>
-
-        <div className="flex items-center gap-2">
-          <button className="inline-flex items-center gap-2 rounded-lg bg-slate-700 px-4 py-2 text-sm font-semibold text-slate-200 hover:bg-slate-600 active:bg-slate-500 transition-colors">
-            <Pencil size={16} />
-            Edit
-          </button>
-          <button
-            onClick={() => setDeleteConfirm(true)}
-            className="inline-flex items-center gap-2 rounded-lg bg-red-900/30 border border-red-700 px-4 py-2 text-sm font-semibold text-red-300 hover:bg-red-900/50 active:bg-red-900/70 transition-colors"
-          >
-            <Trash2 size={16} />
-            Delete
-          </button>
-        </div>
-      </div>
-
-      {/* ── Spool Info Card ── */}
-      <div className="rounded-xl border border-slate-700 bg-slate-800 overflow-hidden">
-        {/* Card header */}
-        <div className="px-6 py-5 border-b border-slate-700 flex flex-col sm:flex-row sm:items-center sm:justify-between gap-3">
-          <div className="flex items-center gap-3">
-            <ColorSwatch colorHex={spool.color_hex} size={36} />
-            <div>
-              <h1 className="text-xl font-bold text-slate-100">{spool.name}</h1>
-              <p className="text-sm text-slate-400">
-                {spool.brand && <span>{spool.brand} · </span>}
-                {spool.diameter_mm}mm
-              </p>
-            </div>
-          </div>
-          <div>
-            {isLow ? (
-              <span className="inline-flex items-center gap-1.5 rounded-full bg-red-900/40 border border-red-700 px-3 py-1 text-sm font-medium text-red-300">
-                <AlertTriangle size={14} /> Low Stock
-              </span>
-            ) : (
-              <span className="inline-flex items-center gap-1.5 rounded-full bg-emerald-900/30 border border-emerald-700 px-3 py-1 text-sm font-medium text-emerald-300">
-                In Stock
-              </span>
-            )}
-          </div>
-        </div>
-
-        {/* Card body — 2-column grid */}
-        <div className="px-6 py-5 grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-3 gap-x-8 gap-y-4">
-          <DetailItem label="Material" value={spool.material_base?.name ?? '—'} />
-          <DetailItem label="Finish" value={spool.material_finish?.name ?? '—'} />
-          <DetailItem
-            label="Modifier"
-            value={spool.material_modifier?.name ?? 'None'}
-          />
-          <DetailItem label="Color" value={spool.color_hex.toUpperCase()} />
-          <DetailItem label="Brand" value={spool.brand || '—'} />
-          <DetailItem label="Diameter" value={`${spool.diameter_mm}mm`} />
-          <DetailItem
-            label="Remaining"
-            value={
-              <span className="font-semibold tabular-nums">
-                {spool.remaining_grams.toLocaleString()} g
-              </span>
-            }
-          />
-          <DetailItem
-            label="Initial"
-            value={`${spool.initial_grams.toLocaleString()} g`}
-          />
-          <DetailItem
-            label="Cost"
-            value={
-              spool.cost_usd != null
-                ? `$${spool.cost_usd.toFixed(2)}`
-                : '—'
-            }
-          />
-        </div>
-
-        {/* Progress Bar */}
-        <div className="px-6 pb-5 pt-1">
-          <div className="flex items-center justify-between text-sm mb-1.5">
-            <span className="text-slate-400">
-              <span className="text-slate-200 font-semibold tabular-nums">
-                {spool.remaining_grams.toLocaleString()}g
-              </span>{' '}
-              of {spool.initial_grams.toLocaleString()}g
-            </span>
-            <span className="text-slate-400 font-medium tabular-nums">
-              {pctRemaining.toFixed(1)}%
-            </span>
-          </div>
-          <div className="w-full h-3 rounded-full bg-slate-700 overflow-hidden">
-            <div
-              className={`h-full rounded-full transition-all duration-500 ${
-                pctRemaining <= 10
-                  ? 'bg-red-500'
-                  : pctRemaining <= 25
-                    ? 'bg-amber-500'
-                    : 'bg-emerald-500'
-              }`}
-              style={{ width: `${Math.min(100, pctRemaining)}%` }}
-            />
-          </div>
-        </div>
-      </div>
-
-      {/* ── Usage History ── */}
-      <div className="rounded-xl border border-slate-700 bg-slate-800 overflow-hidden">
-        <div className="px-6 py-4 border-b border-slate-700">
-          <h2 className="text-lg font-semibold text-slate-100">Usage History</h2>
-        </div>
-
-        {/* Loading sub-state */}
-        {usageLoading && (
-          <div className="px-6 py-8 text-center text-slate-400">
-            <Loader2 size={20} className="animate-spin inline mr-2" />
-            Loading usage history…
-          </div>
-        )}
-
-        {/* Usage error sub-state */}
-        {usageError && !usageLoading && (
-          <div className="px-6 py-8 text-center">
-            <p className="text-red-400 text-sm">
-              Failed to load usage history.
-            </p>
-            <button
-              onClick={() => refetchUsage()}
-              className="mt-2 text-sm text-emerald-400 hover:text-emerald-300 underline"
-            >
-              Retry
-            </button>
-          </div>
-        )}
-
-        {/* Empty state */}
-        {!usageLoading && !usageError && usageLogs && usageLogs.length === 0 && (
-          <div className="px-6 py-10 text-center">
-            <Archive size={32} className="mx-auto text-slate-600 mb-2" />
-            <p className="text-slate-400 text-sm">No usage recorded yet.</p>
-            <p className="text-slate-500 text-xs mt-1">
-              Usage data will appear here when this spool is used in print jobs.
-            </p>
-          </div>
-        )}
-
-        {/* Table — desktop */}
-        {!usageLoading && !usageError && usageLogs && usageLogs.length > 0 && (
-          <>
-            <div className="hidden md:block overflow-x-auto">
-              <table className="w-full text-sm">
-                <thead className="bg-slate-800/50 text-slate-300">
-                  <tr>
-                    <th className="px-6 py-3 text-left font-semibold">Date</th>
-                    <th className="px-6 py-3 text-left font-semibold">Print Job</th>
-                    <th className="px-6 py-3 text-right font-semibold">mm Extruded</th>
-                    <th className="px-6 py-3 text-right font-semibold">Grams Used</th>
-                    <th className="px-6 py-3 text-right font-semibold">Cost</th>
-                  </tr>
-                </thead>
-                <tbody className="divide-y divide-slate-700">
-                  {usageLogs.map((log: UsageLog) => (
-                    <tr
-                      key={log.id}
-                      className="hover:bg-slate-700/30 transition-colors"
-                    >
-                      <td className="px-6 py-3 text-slate-200 tabular-nums">
-                        {new Date(log.logged_at).toLocaleDateString('en-US', {
-                          year: 'numeric',
-                          month: 'short',
-                          day: 'numeric',
-                        })}
-                      </td>
-                      <td className="px-6 py-3 text-slate-300">
-                        {log.print_job_name || `Job #${log.print_job_id ?? log.id}`}
-                      </td>
-                      <td className="px-6 py-3 text-right text-slate-200 tabular-nums">
-                        {log.mm_extruded.toLocaleString()}
-                      </td>
-                      <td className="px-6 py-3 text-right text-slate-200 tabular-nums">
-                        {log.grams_used.toFixed(2)} g
-                      </td>
-                      <td className="px-6 py-3 text-right text-slate-200 tabular-nums">
-                        {log.cost_usd != null ? `$${log.cost_usd.toFixed(3)}` : '—'}
-                      </td>
-                    </tr>
-                  ))}
-                </tbody>
-              </table>
-            </div>
-
-            {/* Mobile cards */}
-            <div className="md:hidden divide-y divide-slate-700">
-              {usageLogs.map((log: UsageLog) => (
-                <div key={log.id} className="px-4 py-4 space-y-2">
-                  <div className="flex items-center justify-between">
-                    <span className="text-sm font-medium text-slate-200">
-                      {log.print_job_name || `Job #${log.print_job_id ?? log.id}`}
-                    </span>
-                    <span className="text-xs text-slate-400 tabular-nums">
-                      {new Date(log.logged_at).toLocaleDateString('en-US', {
-                        month: 'short',
-                        day: 'numeric',
-                      })}
-                    </span>
-                  </div>
-                  <div className="flex items-center justify-between text-sm">
-                    <span className="text-slate-400">
-                      Extruded:{' '}
-                      <span className="text-slate-300 tabular-nums">
-                        {log.mm_extruded.toLocaleString()} mm
-                      </span>
-                    </span>
-                    <span className="text-slate-400">
-                      Used:{' '}
-                      <span className="text-slate-300 tabular-nums">
-                        {log.grams_used.toFixed(2)} g
-                      </span>
-                    </span>
-                    <span className="text-slate-400">
-                      {log.cost_usd != null ? (
-                        <>
-                          Cost:{' '}
-                          <span className="text-slate-300 tabular-nums">
-                            ${log.cost_usd.toFixed(3)}
-                          </span>
-                        </>
-                      ) : (
-                        '—'
-                      )}
-                    </span>
-                  </div>
-                </div>
-              ))}
-            </div>
-          </>
-        )}
-      </div>
-
-      {/* ── Delete Confirmation Modal ── */}
-      {deleteConfirm && (
-        <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 flex-shrink-0">
-                <AlertTriangle size={20} className="text-red-400" />
-              </div>
-              <div>
-                <h3 className="text-lg font-semibold text-slate-100">
-                  Delete &ldquo;{spool.name}&rdquo;?
-                </h3>
-                <p className="text-sm text-slate-400">
-                  This permanently removes the spool and all usage history. This cannot be undone.
-                </p>
-              </div>
-            </div>
-            <div className="flex justify-end gap-3">
-              <button
-                onClick={() => setDeleteConfirm(false)}
-                disabled={deleting}
-                className="rounded-lg bg-slate-700 px-4 py-2 text-sm font-medium text-slate-200 hover:bg-slate-600 transition-colors disabled:opacity-50"
-              >
-                Cancel
-              </button>
-              <button
-                onClick={handleDelete}
-                disabled={deleting}
-                className="inline-flex items-center gap-2 rounded-lg bg-red-600 px-4 py-2 text-sm font-medium text-white hover:bg-red-500 transition-colors disabled:opacity-50"
-              >
-                {deleting && <Loader2 size={16} className="animate-spin" />}
-                {deleting ? 'Deleting…' : 'Delete'}
-              </button>
-            </div>
-          </div>
-        </div>
-      )}
-    </div>
-  )
-}
-
-/** Small detail row for the info card grid */
-function DetailItem({ label, value }: { label: string; value: React.ReactNode }) {
-  return (
-    <div>
-      <dt className="text-xs font-medium uppercase tracking-wider text-slate-500 mb-0.5">
-        {label}
-      </dt>
-      <dd className="text-sm text-slate-200">{value}</dd>
-    </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

@@ -1,5 +1,5 @@
 import axios from 'axios'
-import type { FilamentSpool, ListResponse, UsageLog, FilamentFilter } from '../types/filament'
+import type { FilamentSpool, ListResponse, FilamentFilter } from '../types/filament'
 
 const API_BASE = '/api'
 
@@ -19,16 +19,6 @@ export async function fetchFilaments(filter: FilamentFilter): Promise<ListRespon
   return res.data
 }
 
-export async function fetchFilamentById(id: number): Promise<FilamentSpool> {
-  const res = await axios.get<FilamentSpool>(`${API_BASE}/filaments/${id}`)
-  return res.data
-}
-
-export async function fetchUsageLogs(spoolId: number): Promise<UsageLog[]> {
-  const res = await axios.get<UsageLog[]>(`${API_BASE}/usage-logs?spool_id=${spoolId}`)
-  return res.data
-}
-
 export async function deleteFilament(id: number): Promise<void> {
   await axios.delete(`${API_BASE}/filaments/${id}`)
 }

frontend/src/types/filament.ts

@@ -59,19 +59,6 @@ export interface ListResponse<T> {
   offset: number
 }
 
-export interface UsageLog {
-  id: number
-  spool_id: number
-  print_job_id?: number
-  print_job_name?: string
-  mm_extruded: number
-  grams_used: number
-  cost_usd?: number
-  logged_at: string
-  notes?: string
-  created_at: string
-}
-
 export interface FilamentFilter {
   material?: string
   finish?: string

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/tsconfig.json

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