feat(plan5): page /creation stepper 4 étapes + lien nav + fix TS shopifyMetafields

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/app/(dashboard)/creation/page.tsx

@@ -0,0 +1,166 @@
+'use client'
+import { useState, useCallback } from 'react'
+import { Header } from '@/components/layout/Header'
+import { PendingRowsTable } from '@/components/creation/PendingRowsTable'
+import { MetafieldResolver } from '@/components/creation/MetafieldResolver'
+import { CreationProgress } from '@/components/creation/CreationProgress'
+import type { PendingProduct, MetafieldResolution, CreationStreamEvent } from '@/types/creation'
+
+type Step = 'analyse' | 'metafields' | 'confirmation' | 'execution'
+
+export default function CreationPage() {
+  const [step, setStep] = useState<Step>('analyse')
+  const [loading, setLoading] = useState(false)
+  const [error, setError] = useState<string | null>(null)
+  const [byTab, setByTab] = useState<Record<string, PendingProduct[]>>({})
+  const [total, setTotal] = useState(0)
+  const [specificColumns, setSpecificColumns] = useState<string[]>([])
+  const [resolutions, setResolutions] = useState<MetafieldResolution[]>([])
+  const [events, setEvents] = useState<CreationStreamEvent[]>([])
+  const [done, setDone] = useState(false)
+
+  const analyse = async () => {
+    setLoading(true)
+    setError(null)
+    try {
+      const res = await fetch('/api/creation/preview')
+      const data = await res.json()
+      if (data.error) throw new Error(data.error)
+      setByTab(data.byTab)
+      setTotal(data.total)
+      setSpecificColumns(data.specificColumns)
+      setStep('metafields')
+    } catch (e) {
+      setError(e instanceof Error ? e.message : 'Erreur')
+    } finally {
+      setLoading(false)
+    }
+  }
+
+  const handleResolved = useCallback((r: MetafieldResolution[]) => { setResolutions(r) }, [])
+
+  const execute = async () => {
+    setStep('execution')
+    setEvents([])
+    setDone(false)
+    const res = await fetch('/api/creation/execute', {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify({ resolutions }),
+    })
+    if (!res.body) return
+    const reader = res.body.getReader()
+    const decoder = new TextDecoder()
+    let buffer = ''
+    while (true) {
+      const { done: readerDone, value } = await reader.read()
+      if (readerDone) break
+      buffer += decoder.decode(value, { stream: true })
+      const lines = buffer.split('\n')
+      buffer = lines.pop() ?? ''
+      for (const line of lines) {
+        if (!line.trim()) continue
+        try {
+          const event = JSON.parse(line) as CreationStreamEvent
+          setEvents(prev => [...prev, event])
+          if (event.type === 'done') setDone(true)
+        } catch { /* ligne incomplète */ }
+      }
+    }
+    setDone(true)
+  }
+
+  const STEPS: { id: Step; label: string }[] = [
+    { id: 'analyse', label: 'Analyse' },
+    { id: 'metafields', label: 'Métachamps' },
+    { id: 'confirmation', label: 'Confirmation' },
+    { id: 'execution', label: 'Exécution' },
+  ]
+  const currentIdx = STEPS.findIndex(s => s.id === step)
+
+  return (
+    <>
+      <Header title="Création produits" />
+      <div className="p-6 space-y-6">
+        <div className="flex gap-2">
+          {STEPS.map((s, i) => (
+            <div key={s.id} className="flex items-center gap-2">
+              <span className={`px-3 py-1 rounded-full text-xs font-medium ${step === s.id ? 'bg-indigo-600 text-white' : i < currentIdx ? 'bg-green-700 text-white' : 'bg-slate-700 text-gray-400'}`}>
+                {i + 1}. {s.label}
+              </span>
+              {i < STEPS.length - 1 && <span className="text-gray-600">→</span>}
+            </div>
+          ))}
+        </div>
+
+        <div className="bg-slate-800 rounded-xl p-6">
+          {error && <div className="mb-4 p-3 bg-red-900/30 border border-red-700 rounded-lg text-red-300 text-sm">{error}</div>}
+
+          {step === 'analyse' && (
+            <div className="space-y-4">
+              <p className="text-gray-300 text-sm">
+                Lit tous les onglets du Google Sheets et détecte les lignes où <code className="text-indigo-300">Publié=1</code> et <code className="text-indigo-300">ID vide</code>.
+              </p>
+              <button onClick={analyse} disabled={loading}
+                className="px-4 py-2 bg-indigo-600 hover:bg-indigo-700 disabled:opacity-50 text-white rounded-lg text-sm font-medium transition-colors">
+                {loading ? 'Analyse en cours…' : 'Analyser le Sheets'}
+              </button>
+            </div>
+          )}
+
+          {step === 'metafields' && (
+            <div className="space-y-6">
+              <PendingRowsTable byTab={byTab} total={total} />
+              {total > 0 && (
+                <>
+                  <hr className="border-slate-700" />
+                  <div>
+                    <h2 className="text-base font-semibold text-white mb-3">Résolution des métachamps</h2>
+                    <MetafieldResolver specificColumns={specificColumns} onResolved={handleResolved} />
+                  </div>
+                  <button onClick={() => setStep('confirmation')}
+                    className="px-4 py-2 bg-indigo-600 hover:bg-indigo-700 text-white rounded-lg text-sm font-medium transition-colors">
+                    Continuer →
+                  </button>
+                </>
+              )}
+            </div>
+          )}
+
+          {step === 'confirmation' && (
+            <div className="space-y-4">
+              <div className="space-y-2 text-sm">
+                <p className="text-gray-300"><span className="text-white font-medium">{total} produit{total > 1 ? 's' : ''}</span> à créer dans Shopify</p>
+                <p className="text-gray-300"><span className="text-white font-medium">{resolutions.filter(r => r.action !== 'skip').length}</span> type{resolutions.filter(r => r.action !== 'skip').length > 1 ? 's' : ''} de métachamps à assigner</p>
+                <p className="text-gray-300"><span className="text-white font-medium">{resolutions.filter(r => r.action === 'create').length}</span> nouvelle{resolutions.filter(r => r.action === 'create').length > 1 ? 's' : ''} définition{resolutions.filter(r => r.action === 'create').length > 1 ? 's' : ''} à créer dans Shopify</p>
+                <p className="text-yellow-300 text-xs mt-2">⚠ Les descriptions seront générées par OpenAI GPT-4o (~0.01$ par produit)</p>
+              </div>
+              <div className="flex gap-3">
+                <button onClick={() => setStep('metafields')}
+                  className="px-4 py-2 bg-slate-700 hover:bg-slate-600 text-gray-300 rounded-lg text-sm font-medium transition-colors">
+                  ← Retour
+                </button>
+                <button onClick={execute}
+                  className="px-4 py-2 bg-green-700 hover:bg-green-600 text-white rounded-lg text-sm font-medium transition-colors">
+                  Lancer la création ({total} produits)
+                </button>
+              </div>
+            </div>
+          )}
+
+          {step === 'execution' && (
+            <div className="space-y-4">
+              <CreationProgress events={events} done={done} />
+              {done && (
+                <button onClick={() => { setStep('analyse'); setEvents([]); setDone(false); setByTab({}); setTotal(0) }}
+                  className="px-4 py-2 bg-indigo-600 hover:bg-indigo-700 text-white rounded-lg text-sm font-medium transition-colors">
+                  Nouvelle session
+                </button>
+              )}
+            </div>
+          )}
+        </div>
+      </div>
+    </>
+  )
+}

src/components/layout/Sidebar.tsx

@@ -15,6 +15,7 @@ const NAV_ITEMS: NavItem[] = [
   { href: '/produits',   label: 'Produits',     icon: '📦' },
   { href: '/images',     label: 'Images',       icon: '🖼️' },
   { href: '/sync',       label: 'Sync Sheets',  icon: '🔄' },
+  { href: '/creation',   label: 'Création',     icon: '✨' },
   { href: '/parametres', label: 'Paramètres',   icon: '⚙️', adminOnly: true },
 ]
 

src/lib/shopifyMetafields.ts

@@ -16,7 +16,7 @@ export function normalizeMetafieldKey(header: string): string {
   return header
     .toLowerCase()
     .normalize('NFD')
-    .replace(/\p{Diacritic}/gu, '')
+    .replace(/[̀-ͯ]/g, '')  // retire les accents
     .replace(/[^a-z0-9]+/g, '_')
     .replace(/^_+|_+$/g, '')
     .replace(/_+/g, '_')