fix(inventory): enable smart warehouse stock binding and optional brand/specs for inter-project transfer

backend/app/services/project_transfer_service.py

@@ -100,6 +100,56 @@ async def create_project_transfer(
             specs_hash,
             for_update=True,
         )
+
+        # Smart fallback: If exact hash or brand didn't match, check candidate rows in this warehouse for this material
+        if source_item is None:
+            candidates_res = await db.execute(
+                select(InventoryItem)
+                .where(
+                    InventoryItem.warehouse_id == payload.from_warehouse_id,
+                    InventoryItem.material_id == payload.material_id,
+                )
+                .with_for_update()
+            )
+            candidates = candidates_res.scalars().all()
+
+            if len(candidates) == 1:
+                source_item = candidates[0]
+            elif len(candidates) > 1:
+                best_cand = None
+                best_score = -1
+                p_keys = set(specs.keys())
+                p_vals = set(str(v).strip() for v in specs.values() if str(v).strip())
+
+                for cand in candidates:
+                    score = 0
+                    if cand.brand_id == payload.brand_id:
+                        score += 10
+                    elif cand.brand_id is None and payload.brand_id is None:
+                        score += 10
+                    elif cand.brand_id is None:
+                        score += 4
+
+                    c_specs = cand.specs or {}
+                    c_keys = set(c_specs.keys())
+                    c_vals = set(str(v).strip() for v in c_specs.values() if str(v).strip())
+
+                    for pk in p_keys:
+                        if pk in c_keys or f"spec_{pk}" in c_keys or any(pk in ck for ck in c_keys):
+                            score += 5
+                    for pv in p_vals:
+                        if pv in c_vals or any(pv in str(cv) for cv in c_vals):
+                            score += 5
+
+                    if cand.quantity >= payload.quantity:
+                        score += 2
+
+                    if score > best_score:
+                        best_score = score
+                        best_cand = cand
+
+                source_item = best_cand
+
         if source_item is None or source_item.quantity < payload.quantity:
             avail = source_item.quantity if source_item else Decimal("0")
             raise ValidationError(
@@ -129,16 +179,20 @@ async def create_project_transfer(
         db.add(out_tx)
         await db.flush()
 
+        actual_brand_id = source_item.brand_id
+        actual_specs = source_item.specs if source_item.specs is not None else specs
+        actual_specs_hash = source_item.specs_hash or canonical_specs_hash(actual_specs)
+
         transfer = ProjectTransfer(
             from_project_id=from_wh.project_id,
             from_warehouse_id=from_wh.id,
             to_project_id=payload.to_project_id,
             material_id=payload.material_id,
-            brand_id=payload.brand_id,
-            unit_id=payload.unit_id,
+            brand_id=actual_brand_id,
+            unit_id=source_item.unit_id if source_item.unit_id else payload.unit_id,
             quantity=payload.quantity,
-            specs=specs,
-            specs_hash=specs_hash,
+            specs=actual_specs,
+            specs_hash=actual_specs_hash,
             note=payload.note,
             status="in_transit",
             out_transaction_id=out_tx.id,

frontend/src/pages/Inventory/ChangeInventoryPage.tsx

@@ -238,17 +238,12 @@ export function ChangeInventoryPage() {
     }
   }, [type, loadTransfers]);
 
-  const matchedStock = useMemo(() => {
-    if (type !== "PROJECT_TRANSFER" || !whId || !matTxt.trim()) return null;
-    const mt = matTxt.trim();
-    const bt = brandTxt.trim();
-    return data.inventory.filter((r) => {
-      if (r.warehouse?.id !== whId) return false;
-      if (r.material.name !== mt) return false;
-      if (bt && r.brand?.name !== bt) return false;
-      return true;
-    });
-  }, [type, whId, matTxt, brandTxt, data.inventory]);
+  const whStock = useMemo(() => {
+    if (!whId) return [];
+    return (data.inventory || []).filter((r) => r.warehouse?.id === whId && r.quantity_number > 0);
+  }, [data.inventory, whId]);
+
+
 
   const handleSaveEdit = async () => {
     if (!editingTransfer) return;
@@ -340,36 +335,52 @@ export function ChangeInventoryPage() {
     if (!whId) return toast.error("انبار مبدأ را انتخاب کنید");
     if (!toProjectId) return toast.error("پروژه مقصد را انتخاب کنید");
     if (!matName) return toast.error("نام متریال را وارد کنید");
-    if (!brandName) return toast.error("نام برند را وارد کنید");
     if (!unitName) return toast.error("نام واحد را وارد کنید");
     if (!(n > 0)) return toast.error("تعداد باید بزرگ‌تر از صفر باشد");
-    if (!specsComplete) return toast.error("حداقل یک مشخصه فنی ثبت کنید");
 
     setBusy(true);
     try {
-      let uid = unitIdByName(unitName);
+      // Find matching inventory in the selected source warehouse
+      const invInWh = (data.inventory || []).filter(
+        (r) => r.warehouse?.id === whId && r.material.name.trim() === matName
+      );
+      const matchedInv = invInWh.find(
+        (r) => (brandName ? r.brand?.name === brandName : !r.brand)
+      ) || invInWh[0];
+
+      let uid = matchedInv?.unit?.id ?? unitIdByName(unitName);
       if (!uid) {
         const created = await apiV26.catalog.createUnit(unitName);
         uid = created.id;
       }
-      let bid = brandIdByName(brandName);
-      if (!bid) {
+
+      let bid: string | null = matchedInv?.brand?.id ?? (brandName ? brandIdByName(brandName) : null);
+      if (brandName && !bid) {
         const created = await apiV26.catalog.createBrand(brandName);
         bid = created.id;
       }
-      let m = matByName(matName);
-      if (!m) {
-        const created = await apiV26.catalog.createMaterial({ name: matName, canonical_unit_id: uid, brand_ids: bid ? [bid] : [] });
-        m = { id: created.id, name: created.name, canonical_unit: null };
+
+      let mid = matchedInv?.material.id;
+      if (!mid) {
+        let m = matByName(matName);
+        if (!m) {
+          const created = await apiV26.catalog.createMaterial({ name: matName, canonical_unit_id: uid, brand_ids: bid ? [bid] : [] });
+          mid = created.id;
+        } else {
+          mid = m.id;
+        }
       }
+
+      const finalSpecs = matchedInv ? (matchedInv.specs || {}) : specsFromChips();
+
       await apiV26.projectTransfers.create({
         from_warehouse_id: whId,
         to_project_id: toProjectId,
-        material_id: m.id,
-        brand_id: bid,
+        material_id: mid,
+        brand_id: bid || null,
         unit_id: uid,
         quantity: n,
-        specs: specsFromChips(),
+        specs: finalSpecs,
         note,
         transfer_date: toServerIso(),
       }, user?.project_id);
@@ -530,7 +541,7 @@ export function ChangeInventoryPage() {
       return !!(whId && matTxt.trim() && brandTxt.trim() && unitTxt.trim() && parseNum(qty) > 0 && specsComplete);
     }
     if (type === "PROJECT_TRANSFER") {
-      return !!(whId && toProjectId && matTxt.trim() && brandTxt.trim() && unitTxt.trim() && parseNum(qty) > 0 && specsComplete);
+      return !!(whId && toProjectId && matTxt.trim() && unitTxt.trim() && parseNum(qty) > 0);
     }
     if (type === "TRANSFER") return !!(fromId && toId && matTxt.trim() && rows.some((r) => parseNum(r.qty) > 0));
     if (type === "RETURN") return !!(whId && matTxt.trim() && rows.some((r) => parseNum(r.qty) > 0));
@@ -766,6 +777,69 @@ export function ChangeInventoryPage() {
           {/* فرم خرید / موجودی اولیه یا انتقال بین کارگاهی */}
           {(type === "PURCHASE" || type === "PROJECT_TRANSFER") && (
             <div className="grid gap-3 md:grid-cols-2">
+              {/* چیپ‌های انتخاب سریع از موجودی‌های انبار مبدأ */}
+              {type === "PROJECT_TRANSFER" && whId && (
+                <div className="field md:col-span-2 rounded-xl border border-rose-500/20 bg-rose-500/5 p-3.5">
+                  <div className="flex items-center justify-between gap-2 mb-2">
+                    <span className="text-xs font-bold text-foreground flex items-center gap-1.5">
+                      <span>📦</span>
+                      <span>موجودی‌های موجود در {whName(warehouses, whId)} — برای پر کردن خودکار فرم کلیک کنید:</span>
+                    </span>
+                    <span className="text-[11px] text-muted">{faNum(whStock.length)} قلم کالا</span>
+                  </div>
+                  {whStock.length === 0 ? (
+                    <div className="text-xs text-muted py-1">هیچ کالایی با موجودی مثبت در این انبار یافت نشد.</div>
+                  ) : (
+                    <div className="flex flex-wrap gap-2">
+                      {whStock.map((r) => {
+                        const isSelected = matTxt === r.material.name && (brandTxt === (r.brand?.name || "") || (!brandTxt && !r.brand));
+                        const specsSummary = Object.entries(r.specs || {})
+                          .map(([k, v]) => (v ? `${v}` : k.replace(/^spec_/, "")))
+                          .filter(Boolean)
+                          .join(" · ");
+                        return (
+                          <button
+                            key={r.id}
+                            type="button"
+                            onClick={() => {
+                              setMatTxt(r.material.name);
+                              setBrandTxt(r.brand?.name || "");
+                              setUnitTxt(unitName(data.lookup.units, r.unit?.id) || "");
+                              const chips = Object.entries(r.specs || {})
+                                .map(([k, v]) => (v ? `${v}` : k.replace(/^spec_/, "")))
+                                .filter(Boolean);
+                              setSpecsChips(chips);
+                            }}
+                            className={cn(
+                              "flex items-center gap-2 rounded-lg border px-3 py-1.5 text-xs text-start transition-all shadow-2xs",
+                              isSelected
+                                ? "border-rose-500 bg-rose-600 text-white font-bold ring-2 ring-rose-500/30"
+                                : "border-line bg-panel hover:border-ink/40 text-ink"
+                            )}
+                          >
+                            <span className="font-bold">{r.material.name}</span>
+                            <span className={isSelected ? "text-white/80" : "text-muted font-normal"}>
+                              ({r.brand?.name || "بدون برند"})
+                            </span>
+                            {specsSummary && (
+                              <span className={isSelected ? "text-white/90" : "text-muted text-[11px]"}>
+                                [{specsSummary}]
+                              </span>
+                            )}
+                            <span className={cn(
+                              "rounded-md px-1.5 py-0.5 text-[11.5px] font-black",
+                              isSelected ? "bg-white/20 text-white" : "bg-bg text-foreground"
+                            )}>
+                              {faNum(r.quantity_number)} {unitName(data.lookup.units, r.unit?.id)}
+                            </span>
+                          </button>
+                        );
+                      })}
+                    </div>
+                  )}
+                </div>
+              )}
+
               <div className="field md:col-span-2">
                 <label className="text-xs font-semibold text-muted">متریال *</label>
                 <Combobox
@@ -784,13 +858,15 @@ export function ChangeInventoryPage() {
                 )}
               </div>
               <div className="field">
-                <label className="text-xs font-semibold text-muted">برند *</label>
+                <label className="text-xs font-semibold text-muted">
+                  برند {type === "PROJECT_TRANSFER" ? "(اختیاری)" : "*"}
+                </label>
                 <Combobox
                   value={brandTxt}
                   items={data.lookup.brands.map((b) => b.name)}
                   allowAdd
                   addSuffix="به عنوان برند جدید"
-                  placeholder="نام برند — از فهرست انتخاب یا نام جدید تایپ کنید"
+                  placeholder={type === "PROJECT_TRANSFER" ? "نام برند (اختیاری — برای اقلام بدون برند خالی بگذارید)" : "نام برند — از فهرست انتخاب یا نام جدید تایپ کنید"}
                   onInputChange={setBrandTxt}
                   onChange={(it) => setBrandTxt(it.label)}
                 />
@@ -827,11 +903,13 @@ export function ChangeInventoryPage() {
                 />
               </div>
               <div className="field md:col-span-2">
-                <label className="text-xs font-semibold text-muted">مشخصه‌های فنی *</label>
+                <label className="text-xs font-semibold text-muted">
+                  مشخصه‌های فنی {type === "PROJECT_TRANSFER" ? "(اختیاری)" : "*"}
+                </label>
                 <MultiSelectCombobox
                   values={specsChips}
                   onChange={setSpecsChips}
-                  placeholder="نام مشخصه را تایپ کنید و Enter بزنید (مثلاً سایز)"
+                  placeholder={type === "PROJECT_TRANSFER" ? "مشخصات فنی (اختیاری — مثلاً مسی، سایز و…)" : "نام مشخصه را تایپ کنید و Enter بزنید (مثلاً سایز)"}
                   className="w-full"
                 />
               </div>
@@ -844,20 +922,6 @@ export function ChangeInventoryPage() {
                   onChange={(e) => setNote(e.target.value)}
                 />
               </div>
-              {type === "PROJECT_TRANSFER" && (matchedStock?.length ?? 0) > 0 && (
-                <div className="field md:col-span-2 rounded-lg border border-line/70 bg-bg/50 p-3 text-xs">
-                  <div className="font-semibold text-muted mb-1.5">موجودی‌های فعلی این متریال در انبار مبدأ ({whName(warehouses, whId)}):</div>
-                  <div className="flex flex-wrap gap-2">
-                    {(matchedStock || []).map((s) => (
-                      <div key={s.id} className="rounded-md border border-line bg-panel px-2.5 py-1 text-[11.5px] shadow-2xs">
-                        <span className="font-medium">{s.brand?.name || "بدون برند"}</span>
-                        <span className="text-muted"> — {Object.entries(s.specs || {}).map(([k, v]) => `${k}: ${v}`).join(" · ") || "بدون مشخصه"} — </span>
-                        <b className="text-foreground">{faNum(s.quantity_number)} {unitName(data.lookup.units, s.unit?.id)}</b>
-                      </div>
-                    ))}
-                  </div>
-                </div>
-              )}
             </div>
           )}