优化

src/modules/overseas-warehouse/utils/discardDocuments.ts

@@ -0,0 +1,38 @@
+import type { DiscardCandidate } from '../api/warehouseServices'
+
+export interface DiscardDocument extends DiscardCandidate {
+  sources: DiscardCandidate[]
+}
+
+/** 下拉按来源单据和操作仓汇总；原始库存身份保留给选箱与提交。 */
+export function groupDiscardDocuments(candidates: DiscardCandidate[]): DiscardDocument[] {
+  const groups = new Map<string, DiscardDocument>()
+  for (const candidate of candidates) {
+    const documentNo = candidate.inboundOrderNo || candidate.inboundCode
+    const key = JSON.stringify([candidate.overseasWarehouseId, candidate.sourceType, documentNo || candidate.orderId])
+    let document = groups.get(key)
+    if (!document) {
+      document = { ...candidate, orderId: key, sources: [], availablePackages: 0 }
+      groups.set(key, document)
+    }
+    document.sources.push(candidate)
+  }
+  for (const document of groups.values()) {
+    const boxes = new Set<string>()
+    let untrackedPackages = 0
+    for (const source of document.sources) {
+      if (source.sourceType === 'RETURN_CARTON' && source.returnCartonId) {
+        // 退货候选的 availablePackages 是箱内 SKU 件数，一条退货箱只计一箱。
+        boxes.add(`RETURN_CARTON:${source.returnCartonId}`)
+      } else if (source.cartonSelectionSupported && source.cartons?.length) {
+        for (const box of source.cartons) boxes.add(`${source.sourceType}:${box.cartonId}`)
+      } else {
+        untrackedPackages += source.availablePackages
+      }
+    }
+    document.availablePackages = boxes.size + untrackedPackages
+    document.cartonSelectionSupported = document.sources.every(source => source.cartonSelectionSupported)
+    document.cartonSelectionBlockReason = document.sources.find(source => !source.cartonSelectionSupported)?.cartonSelectionBlockReason
+  }
+  return [...groups.values()]
+}