fix(first-leg): freeze versioned submission commands across retries

src/modules/first-leg/store/firstLegOrders.ts

@@ -384,7 +384,8 @@ function mapUnifiedOrderDetail(detail: MerchantUnifiedOrderDetail, warehouses: P
   if (!detail?.summary || !detail.order?.order) throw new Error('订单详情数据不完整，请刷新列表后重试')
   const mapped = mapOrder(detail.order.order, warehouses, detail.order)
   mapped.id = String(detail.summary.orderId)
-  mapped.status = detail.order.order.status === 'CANCELLED' ? 'CANCELLED' : detail.summary.mainStatus
+  const rawStatus = detail.order.order.status
+  mapped.status = rawStatus === 'CANCELLED' || rawStatus === 'DRAFT' ? rawStatus : detail.summary.mainStatus
   mapped.fulfillmentType = detail.summary.fulfillmentType ?? mapped.fulfillmentType
   mapped.lxCode = detail.summary.lxCode ?? mapped.lxCode
   mapped.businessSummary = businessSummary(detail.summary)
@@ -476,7 +477,9 @@ export interface DraftEditSession {
 
 export const useFirstLegOrdersStore = defineStore('client-first-leg-orders', () => {
   const orders = ref<FirstLegOrder[]>([])
-  const pendingSubmitKeys = new Map<string, string>()
+  const pendingSubmissions = new Map<string, { key: string; payload: { expectedVersion: number } }>()
+  const submissionForms = new Map<string, { snapshot: string; order: FirstLegOrder }>()
+  const submittingIds = new Set<string>()
   const pendingEdits = new WeakMap<DraftEditSession, { key: string; payload: { expectedVersion: number; draft: FirstLegOrderSaveRequest } }>()
   const pendingCancellations = new Map<string, { key: string; payload: { expectedVersion: number; reason: string } }>()
 
@@ -602,6 +605,7 @@ export const useFirstLegOrdersStore = defineStore('client-first-leg-orders', ()
   }
 
   async function saveDraft(draft: FirstLegOrderDraft, customerName: string, id?: string, editSession?: DraftEditSession) {
+    if (hasPendingSubmission(id)) throw new Error('上次提交结果未确认，请重试原提交，或确认重新编辑后再保存')
     const warehouse = prepareDraftForSave(draft, warehouses.value)
     if (id) {
       if (!editSession || editSession.orderId !== id) throw new Error('请重新打开草稿详情后编辑')
@@ -661,21 +665,58 @@ export const useFirstLegOrdersStore = defineStore('client-first-leg-orders', ()
 
   async function submitSaved(id: string, companyAuditStatus?: MerchantTenantStatus) {
     if (companyAuditStatus && companyAuditStatus !== 'ACTIVE') throw new Error('企业资料尚未审核通过，请先完善企业资料并等待平台审核')
-    const idempotencyKey = pendingSubmitKeys.get(id) ?? createIdempotencyKey(`first-leg-submit-${id}`)
-    pendingSubmitKeys.set(id, idempotencyKey)
-    await submitMerchantFirstLegOrder(id, idempotencyKey)
-    pendingSubmitKeys.delete(id)
-    return loadUnifiedDetail(id)
+    if (submittingIds.has(id)) throw new Error('订单正在提交，请稍候')
+    submittingIds.add(id)
+    try {
+      let pending = pendingSubmissions.get(id)
+      // Always observe the raw detail; a retry must retain the original command.
+      const { order } = await getMerchantFirstLegOrder(id)
+      if (!pending) {
+        if (order.status !== 'DRAFT') throw new Error('当前订单不是草稿，请刷新订单查看最新状态')
+        if (!Number.isSafeInteger(order.version) || order.version < 0) throw new Error('订单版本缺失，请重新加载详情')
+        pending = { key: createIdempotencyKey(`first-leg-submit-${id}`), payload: { expectedVersion: order.version } }
+        pendingSubmissions.set(id, pending)
+      }
+      await submitMerchantFirstLegOrder(id, pending.payload, pending.key)
+      const submitted = await loadLegacyDetail(id)
+      pendingSubmissions.delete(id)
+      submissionForms.delete(id)
+      return submitted
+    } finally {
+      submittingIds.delete(id)
+    }
   }
 
-  async function submit(draft: FirstLegOrderDraft, customerName: string, id?: string, companyAuditStatus?: MerchantTenantStatus, editSession?: DraftEditSession) {
-    const order = await saveDraft(draft, customerName, id, editSession)
-    return submitSaved(order.id, companyAuditStatus)
+  function hasPendingSubmission(id?: string) { return !!id && (pendingSubmissions.has(id) || submissionForms.has(id)) }
+
+  function isSubmissionRetry(id: string | undefined, draft: FirstLegOrderDraft) {
+    return !!id && hasPendingSubmission(id) && submissionForms.get(id)?.snapshot === JSON.stringify(draft)
+  }
+
+  async function beginNewSubmissionEdit(id: string) {
+    if (submittingIds.has(id)) throw new Error('订单正在提交，请稍候')
+    const detail = await getMerchantFirstLegOrder(id)
+    if (detail.order.status !== 'DRAFT') throw new Error('订单已不在草稿状态，不能重新编辑，请刷新订单查看最新状态')
+    if (!Number.isSafeInteger(detail.order.version) || detail.order.version < 0) throw new Error('订单版本缺失，请重新加载详情')
+    const order = mapOrder(detail.order, warehouses.value, detail)
+    const session = beginDraftEdit(order)
+    pendingSubmissions.delete(id)
+    submissionForms.delete(id)
+    upsertOrder(order)
+    return session
+  }
+
+  async function saveDraftForSubmission(draft: FirstLegOrderDraft, customerName: string, id?: string, editSession?: DraftEditSession) {
+    if (id && isSubmissionRetry(id, draft)) return submissionForms.get(id)!.order
+    const snapshot = JSON.stringify(draft)
+    const order = await saveDraft(JSON.parse(snapshot), customerName, id, editSession)
+    submissionForms.set(order.id, { snapshot, order })
+    return order
   }
 
   async function loadDraftDetail(id: string) {
     return loadLegacyDetail(id, getById(id))
   }
 
-  return { orders, warehouses, loading, loadedFromApi, loadError, warehouseLoadError, draftLoadError, activeCount, pendingCount, getById, load, loadDetail, loadDraftDetail, loadWarehouseDetail, loadWarehouseType, beginDraftEdit, saveDraft, prepareCancellation, cancelOrder, saveDraftBatch, submitSaved, submit }
+  return { orders, warehouses, loading, loadedFromApi, loadError, warehouseLoadError, draftLoadError, activeCount, pendingCount, getById, load, loadDetail, loadDraftDetail, loadWarehouseDetail, loadWarehouseType, beginDraftEdit, saveDraft, prepareCancellation, cancelOrder, saveDraftBatch, submitSaved, hasPendingSubmission, isSubmissionRetry, beginNewSubmissionEdit, saveDraftForSubmission }
 })