(최겸) 구매 입찰 사전견적, 입찰, 낙찰, 유찰, 재입찰 기능 개발

6 files changed, 408 insertions, 136 deletions

diff --git a/lib/bidding/vendor/components/simple-file-upload.tsx b/lib/bidding/vendor/components/simple-file-upload.tsx
index b1eb8b8f..58b60bdf 100644
--- a/lib/bidding/vendor/components/simple-file-upload.tsx
+++ b/lib/bidding/vendor/components/simple-file-upload.tsx
@@ -65,15 +65,23 @@ export function SimpleFileUpload({
     try {
       setIsLoading(true)
       const docs = await getPreQuoteDocuments(biddingId, companyId)
+      
+      // docs가 undefined이거나 배열이 아닌 경우 빈 배열로 처리
+      if (!docs || !Array.isArray(docs)) {
+        setDocuments([])
+        return
+      }
+      
       // Date를 string으로 변환
       const mappedDocs = docs.map(doc => ({
         ...doc,
-        uploadedAt: doc.uploadedAt.toString(),
+        uploadedAt: doc.uploadedAt?.toString() || '',
         uploadedBy: doc.uploadedBy || ''
       }))
       setDocuments(mappedDocs)
     } catch (error) {
       console.error('Failed to load documents:', error)
+      setDocuments([]) // 에러 시에도 빈 배열로 설정
       toast({
         title: '오류',
         description: '업로드된 문서 목록을 불러오는데 실패했습니다.',
@@ -155,9 +163,13 @@ export function SimpleFileUpload({
       
       if (result.success) {
         try {
-          await downloadFile(result.document?.filePath, result.document?.originalFileName, {
-            showToast: true
-          })
+          if (result.document?.filePath && result.document?.originalFileName) {
+            await downloadFile(result.document.filePath, result.document.originalFileName, {
+              showToast: true
+            })
+          } else {
+            throw new Error('파일 정보가 없습니다.')
+          }
         } catch (error) {
           toast({
             title: '다운로드 실패',
diff --git a/lib/bidding/vendor/partners-bidding-attendance-dialog.tsx b/lib/bidding/vendor/partners-bidding-attendance-dialog.tsx
index 9205c46a..e93702ed 100644
--- a/lib/bidding/vendor/partners-bidding-attendance-dialog.tsx
+++ b/lib/bidding/vendor/partners-bidding-attendance-dialog.tsx
@@ -42,6 +42,7 @@ interface PartnersBiddingAttendanceDialogProps {
     preQuoteDate: string | null
     biddingRegistrationDate: string | null
     evaluationDate: string | null
+    hasSpecificationMeeting?: boolean // 사양설명회 여부 추가
   } | null
   biddingCompanyId: number
   isAttending: boolean | null
@@ -206,6 +207,36 @@ export function PartnersBiddingAttendanceDialog({
 
   if (!biddingDetail) return null
 
+  // 사양설명회가 없는 경우
+  if (biddingDetail.hasSpecificationMeeting === false) {
+    return (
+      <Dialog open={open} onOpenChange={onOpenChange}>
+        <DialogContent className="max-w-md">
+          <DialogHeader>
+            <DialogTitle className="flex items-center gap-2">
+              <Users className="w-5 h-5" />
+              사양설명회 정보
+            </DialogTitle>
+          </DialogHeader>
+          
+          <div className="py-6 text-center">
+            <XCircle className="w-12 h-12 text-muted-foreground mx-auto mb-4" />
+            <h3 className="text-lg font-medium mb-2">사양설명회 없음</h3>
+            <p className="text-muted-foreground">
+              해당 입찰 건은 사양설명회가 없습니다.
+            </p>
+          </div>
+
+          <DialogFooter>
+            <Button onClick={() => onOpenChange(false)}>
+              확인
+            </Button>
+          </DialogFooter>
+        </DialogContent>
+      </Dialog>
+    )
+  }
+
   return (
     <Dialog open={open} onOpenChange={onOpenChange}>
       <DialogContent className="max-w-4xl max-h-[90vh]">
diff --git a/lib/bidding/vendor/partners-bidding-list-columns.tsx b/lib/bidding/vendor/partners-bidding-list-columns.tsx
index 0d1e3123..7058f026 100644
--- a/lib/bidding/vendor/partners-bidding-list-columns.tsx
+++ b/lib/bidding/vendor/partners-bidding-list-columns.tsx
@@ -94,7 +94,7 @@ export function getPartnersBiddingListColumns({ setRowAction }: PartnersBiddingL
     // 액션 (드롭다운 메뉴)
     columnHelper.display({
       id: 'actions',
-      header: 'Actions',
+      header: '액션',
       cell: ({ row }) => {
         const handleView = () => {
           if (setRowAction) {
@@ -122,13 +122,7 @@ export function getPartnersBiddingListColumns({ setRowAction }: PartnersBiddingL
             })
           }
         }
-
-        const canManageAttendance = row.original.invitationStatus === 'sent' || 
-                                   row.original.invitationStatus === 'accepted'
         
-        // 사전견적이 가능한 조건: 초대 발송(sent) 상태인 경우
-        const canDoPreQuote = row.original.invitationStatus === 'sent' || row.original.invitationStatus === 'pending' || row.original.invitationStatus === 'submitted';
-
         return (
           <DropdownMenu>
             <DropdownMenuTrigger asChild>
@@ -143,20 +137,12 @@ export function getPartnersBiddingListColumns({ setRowAction }: PartnersBiddingL
             <DropdownMenuContent align="end" className="w-[160px]">
               <DropdownMenuItem onClick={handleView}>
                 <FileText className="mr-2 h-4 w-4" />
-                상세보기
+                입찰 상세보기
               </DropdownMenuItem>
-              {canDoPreQuote && (
                 <DropdownMenuItem onClick={handlePreQuote}>
                   <Calculator className="mr-2 h-4 w-4" />
                   사전견적하기
                 </DropdownMenuItem>
-              )}
-              {canManageAttendance && (
-                <DropdownMenuItem onClick={handleAttendance}>
-                  <Users className="mr-2 h-4 w-4" />
-                  참석여부
-                </DropdownMenuItem>
-              )}
             </DropdownMenuContent>
           </DropdownMenu>
         )
@@ -199,6 +185,22 @@ export function getPartnersBiddingListColumns({ setRowAction }: PartnersBiddingL
       },
     }),
 
+    // 사전견적 참여의사
+    columnHelper.accessor('isPreQuoteParticipated', {
+      header: '사전견적 참여의사',
+      cell: ({ row }) => {
+        const participated = row.original.isPreQuoteParticipated
+        if (participated === null) {
+          return <Badge variant="outline">미결정</Badge>
+        }
+        return (
+          <Badge variant={participated ? 'default' : 'destructive'}>
+            {participated ? '참여' : '미참여'}
+          </Badge>
+        )
+      },
+    }),
+
     // 입찰 참여의사
     columnHelper.accessor('invitationStatus', {
       header: '입찰 참여의사',
@@ -250,6 +252,33 @@ export function getPartnersBiddingListColumns({ setRowAction }: PartnersBiddingL
       },
     }),
 
+    // 사전견적 마감일
+    columnHelper.accessor('preQuoteDeadline', {
+      header: '사전견적 마감일',
+      cell: ({ row }) => {
+        const deadline = row.original.preQuoteDeadline
+        if (!deadline) {
+          return <div className="text-muted-foreground">-</div>
+        }
+        
+        const now = new Date()
+        const deadlineDate = new Date(deadline)
+        const isExpired = deadlineDate < now
+        
+        return (
+          <div className={`text-sm flex items-center gap-1 ${isExpired ? 'text-red-600' : ''}`}>
+            <Calendar className="w-4 h-4" />
+            <span>{formatDate(deadline, 'KR')}</span>
+            {isExpired && (
+              <Badge variant="destructive" className="text-xs">
+                마감
+              </Badge>
+            )}
+          </div>
+        )
+      },
+    }),
+
     // 계약기간
     columnHelper.accessor('contractPeriod', {
       header: '계약기간',
diff --git a/lib/bidding/vendor/partners-bidding-list.tsx b/lib/bidding/vendor/partners-bidding-list.tsx
index 2e8d4164..08489da5 100644
--- a/lib/bidding/vendor/partners-bidding-list.tsx
+++ b/lib/bidding/vendor/partners-bidding-list.tsx
@@ -93,6 +93,17 @@ export function PartnersBiddingList({ companyId }: PartnersBiddingListProps) {
         case 'view':
           // 본입찰 초대 여부 확인
           const bidding = rowAction.row.original
+          
+          // 사전견적 요청 상태에서는 상세보기 제한
+          if (bidding.status === 'request_for_quotation') {
+            toast({
+              title: '접근 제한',
+              description: '사전견적 요청 상태에서는 상세보기를 이용할 수 없습니다.',
+              variant: 'destructive',
+            })
+            return
+          }
+          
           if (bidding.status === 'bidding_opened' && !bidding.isBiddingInvited) {
             // 본입찰이 오픈되었지만 초대받지 않은 경우
             toast({
@@ -227,6 +238,7 @@ export function PartnersBiddingList({ companyId }: PartnersBiddingListProps) {
           preQuoteDate: null,
           biddingRegistrationDate: rowAction.row.original.submissionStartDate?.toISOString() || null,
           evaluationDate: null,
+          hasSpecificationMeeting: (rowAction.row.original as any).hasSpecificationMeeting || false, // 사양설명회 여부 추가
         } : null}
         biddingCompanyId={rowAction?.row.original?.biddingCompanyId || 0}
         isAttending={rowAction?.row.original?.isAttendingMeeting || null}
diff --git a/lib/bidding/vendor/partners-bidding-pre-quote.tsx b/lib/bidding/vendor/partners-bidding-pre-quote.tsx
index 4cd0efdb..fdd05154 100644
--- a/lib/bidding/vendor/partners-bidding-pre-quote.tsx
+++ b/lib/bidding/vendor/partners-bidding-pre-quote.tsx
@@ -30,7 +30,8 @@ import {
   submitPreQuoteResponse,
   getPrItemsForBidding,
   getSavedPrItemQuotations,
-  savePreQuoteDraft
+  savePreQuoteDraft,
+  setPreQuoteParticipation
 } from '../pre-quote/service'
 import { getBiddingConditions } from '../service'
 import { getPriceAdjustmentFormByBiddingCompanyId } from '../detail/service'
@@ -80,6 +81,7 @@ interface BiddingDetail {
   invitationStatus: string | null
   preQuoteAmount: string | null
   preQuoteSubmittedAt: string | null
+  preQuoteDeadline: string | null
   isPreQuoteSelected: boolean | null
   isAttendingMeeting: boolean | null
   // companyConditionResponses에서 가져온 조건들 (제시된 조건과 응답 모두)
@@ -126,6 +128,9 @@ export function PartnersBiddingPreQuote({ biddingId, companyId }: PartnersBiddin
     isAttendingMeeting: false,
   })
 
+  // 사전견적 참여의사 상태
+  const [participationDecision, setParticipationDecision] = React.useState<boolean | null>(null)
+
   // 연동제 폼 상태
   const [priceAdjustmentForm, setPriceAdjustmentForm] = React.useState({
     itemName: '',
@@ -211,6 +216,9 @@ export function PartnersBiddingPreQuote({ biddingId, companyId }: PartnersBiddin
             additionalProposals: result.additionalProposals || '',
             isAttendingMeeting: result.isAttendingMeeting || false,
           })
+
+          // 사전견적 참여의사 초기화
+          setParticipationDecision(result.isPreQuoteParticipated)
         }
         
         if (conditions) {
@@ -238,64 +246,131 @@ export function PartnersBiddingPreQuote({ biddingId, companyId }: PartnersBiddin
 
   // 임시저장 기능
   const handleTempSave = () => {
-    if (!biddingDetail) return
+    if (!biddingDetail || !biddingDetail.biddingCompanyId) {
+      toast({
+        title: '임시저장 실패',
+        description: '입찰 정보가 올바르지 않습니다.',
+        variant: 'destructive',
+      })
+      return
+    }
+
+    if (!userId) {
+      toast({
+        title: '임시저장 실패',
+        description: '사용자 정보를 확인할 수 없습니다. 다시 로그인해주세요.',
+        variant: 'destructive',
+      })
+      return
+    }
 
     setIsSaving(true)
     startTransition(async () => {
-      const result = await savePreQuoteDraft(
+      try {
+        const result = await savePreQuoteDraft(
+          biddingDetail.biddingCompanyId!,
+          {
+            prItemQuotations,
+            paymentTermsResponse: responseData.paymentTermsResponse,
+            taxConditionsResponse: responseData.taxConditionsResponse,
+            incotermsResponse: responseData.incotermsResponse,
+            proposedContractDeliveryDate: responseData.proposedContractDeliveryDate,
+            proposedShippingPort: responseData.proposedShippingPort,
+            proposedDestinationPort: responseData.proposedDestinationPort,
+            priceAdjustmentResponse: responseData.priceAdjustmentResponse,
+            isInitialResponse: responseData.isInitialResponse,
+            sparePartResponse: responseData.sparePartResponse,
+            additionalProposals: responseData.additionalProposals,
+            priceAdjustmentForm: responseData.priceAdjustmentResponse ? {
+              itemName: priceAdjustmentForm.itemName,
+              adjustmentReflectionPoint: priceAdjustmentForm.adjustmentReflectionPoint,
+              majorApplicableRawMaterial: priceAdjustmentForm.majorApplicableRawMaterial,
+              adjustmentFormula: priceAdjustmentForm.adjustmentFormula,
+              rawMaterialPriceIndex: priceAdjustmentForm.rawMaterialPriceIndex,
+              referenceDate: priceAdjustmentForm.referenceDate,
+              comparisonDate: priceAdjustmentForm.comparisonDate,
+              adjustmentRatio: priceAdjustmentForm.adjustmentRatio ? parseFloat(priceAdjustmentForm.adjustmentRatio) : undefined,
+              notes: priceAdjustmentForm.notes,
+              adjustmentConditions: priceAdjustmentForm.adjustmentConditions,
+              majorNonApplicableRawMaterial: priceAdjustmentForm.majorNonApplicableRawMaterial,
+              adjustmentPeriod: priceAdjustmentForm.adjustmentPeriod,
+              contractorWriter: priceAdjustmentForm.contractorWriter,
+              adjustmentDate: priceAdjustmentForm.adjustmentDate,
+              nonApplicableReason: priceAdjustmentForm.nonApplicableReason,
+            } : undefined
+          },
+          userId
+        )
+
+        if (result.success) {
+          toast({
+            title: '임시저장 완료',
+            description: result.message,
+          })
+        } else {
+          toast({
+            title: '임시저장 실패',
+            description: result.error,
+            variant: 'destructive',
+          })
+        }
+      } catch (error) {
+        console.error('Temp save error:', error)
+        toast({
+          title: '임시저장 실패',
+          description: '서버 오류가 발생했습니다. 잠시 후 다시 시도해주세요.',
+          variant: 'destructive',
+        })
+      } finally {
+        setIsSaving(false)
+      }
+    })
+  }
+
+  // 사전견적 참여의사 설정 함수
+  const handleParticipationDecision = async (participate: boolean) => {
+    if (!biddingDetail?.biddingCompanyId) return
+
+    startTransition(async () => {
+      const result = await setPreQuoteParticipation(
         biddingDetail.biddingCompanyId!,
-        {
-          prItemQuotations,
-          paymentTermsResponse: responseData.paymentTermsResponse,
-          taxConditionsResponse: responseData.taxConditionsResponse,
-          incotermsResponse: responseData.incotermsResponse,
-          proposedContractDeliveryDate: responseData.proposedContractDeliveryDate,
-          proposedShippingPort: responseData.proposedShippingPort,
-          proposedDestinationPort: responseData.proposedDestinationPort,
-          priceAdjustmentResponse: responseData.priceAdjustmentResponse,
-          isInitialResponse: responseData.isInitialResponse,
-          sparePartResponse: responseData.sparePartResponse,
-          additionalProposals: responseData.additionalProposals,
-          priceAdjustmentForm: responseData.priceAdjustmentResponse ? {
-            itemName: priceAdjustmentForm.itemName,
-            adjustmentReflectionPoint: priceAdjustmentForm.adjustmentReflectionPoint,
-            majorApplicableRawMaterial: priceAdjustmentForm.majorApplicableRawMaterial,
-            adjustmentFormula: priceAdjustmentForm.adjustmentFormula,
-            rawMaterialPriceIndex: priceAdjustmentForm.rawMaterialPriceIndex,
-            referenceDate: priceAdjustmentForm.referenceDate,
-            comparisonDate: priceAdjustmentForm.comparisonDate,
-            adjustmentRatio: priceAdjustmentForm.adjustmentRatio ? parseFloat(priceAdjustmentForm.adjustmentRatio) : undefined,
-            notes: priceAdjustmentForm.notes,
-            adjustmentConditions: priceAdjustmentForm.adjustmentConditions,
-            majorNonApplicableRawMaterial: priceAdjustmentForm.majorNonApplicableRawMaterial,
-            adjustmentPeriod: priceAdjustmentForm.adjustmentPeriod,
-            contractorWriter: priceAdjustmentForm.contractorWriter,
-            adjustmentDate: priceAdjustmentForm.adjustmentDate,
-            nonApplicableReason: priceAdjustmentForm.nonApplicableReason,
-          } : undefined
-        },
-        'current-user' // TODO: 실제 사용자 ID
+        participate,
+        userId
       )
 
       if (result.success) {
+        setParticipationDecision(participate)
         toast({
-          title: '임시저장 완료',
-          description: result.message,
+          title: '설정 완료',
+          description: `사전견적 ${participate ? '참여' : '미참여'}로 설정되었습니다.`,
         })
       } else {
         toast({
-          title: '임시저장 실패',
+          title: '설정 실패',
           description: result.error,
           variant: 'destructive',
         })
       }
-      setIsSaving(false)
     })
   }
 
   const handleSubmitResponse = () => {
     if (!biddingDetail) return
 
+    // 견적마감일 체크
+    if (biddingDetail.preQuoteDeadline) {
+      const now = new Date()
+      const deadline = new Date(biddingDetail.preQuoteDeadline)
+      if (deadline < now) {
+        toast({
+          title: '견적 마감',
+          description: '견적 마감일이 지나 제출할 수 없습니다.',
+          variant: 'destructive',
+        })
+        return
+      }
+    }
+
     // 필수값 검증
     if (prItemQuotations.length === 0 || totalAmount === 0) {
       toast({
@@ -342,7 +417,7 @@ export function PartnersBiddingPreQuote({ biddingId, companyId }: PartnersBiddin
       const result = await submitPreQuoteResponse(
         biddingDetail.biddingCompanyId!,
         submissionData,
-        'current-user' // TODO: 실제 사용자 ID
+        userId
       )
 
       console.log('제출 결과:', result)
@@ -493,7 +568,7 @@ export function PartnersBiddingPreQuote({ biddingId, companyId }: PartnersBiddin
                 <span>{biddingDetail.itemName}</span>
               </div>
             </div>
-            <div>
+            {/* <div>
               <Label className="text-sm font-medium text-muted-foreground">계약구분</Label>
               <div className="mt-1">{contractTypeLabels[biddingDetail.contractType]}</div>
             </div>
@@ -504,7 +579,7 @@ export function PartnersBiddingPreQuote({ biddingId, companyId }: PartnersBiddin
             <div>
               <Label className="text-sm font-medium text-muted-foreground">낙찰수</Label>
               <div className="mt-1">{biddingDetail.awardCount === 'single' ? '단수' : '복수'}</div>
-            </div>
+            </div> */}
             <div>
               <Label className="text-sm font-medium text-muted-foreground">담당자</Label>
               <div className="flex items-center gap-2 mt-1">
@@ -514,7 +589,7 @@ export function PartnersBiddingPreQuote({ biddingId, companyId }: PartnersBiddin
             </div>
           </div>
 
-          {biddingDetail.budget && (
+          {/* {biddingDetail.budget && (
             <div>
               <Label className="text-sm font-medium text-muted-foreground">예산</Label>
               <div className="flex items-center gap-2 mt-1">
@@ -522,10 +597,10 @@ export function PartnersBiddingPreQuote({ biddingId, companyId }: PartnersBiddin
                 <span className="font-semibold">{formatCurrency(biddingDetail.budget)}</span>
               </div>
             </div>
-          )}
+          )} */}
 
           {/* 일정 정보 */}
-          <div className="pt-4 border-t">
+          {/* <div className="pt-4 border-t">
             <Label className="text-sm font-medium text-muted-foreground mb-2 block">일정 정보</Label>
             <div className="grid grid-cols-1 md:grid-cols-2 gap-2 text-sm">
               {biddingDetail.submissionStartDate && biddingDetail.submissionEndDate && (
@@ -539,7 +614,60 @@ export function PartnersBiddingPreQuote({ biddingId, companyId }: PartnersBiddin
                 </div>
               )}
             </div>
-          </div>
+          </div> */}
+
+          {/* 견적마감일 정보 */}
+          {biddingDetail.preQuoteDeadline && (
+            <div className="pt-4 border-t">
+              <Label className="text-sm font-medium text-muted-foreground mb-2 block">견적 마감 정보</Label>
+              {(() => {
+                const now = new Date()
+                const deadline = new Date(biddingDetail.preQuoteDeadline)
+                const isExpired = deadline < now
+                const timeLeft = deadline.getTime() - now.getTime()
+                const daysLeft = Math.floor(timeLeft / (1000 * 60 * 60 * 24))
+                const hoursLeft = Math.floor((timeLeft % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60))
+                
+                return (
+                  <div className={`p-3 rounded-lg border-2 ${
+                    isExpired 
+                      ? 'border-red-200 bg-red-50' 
+                      : daysLeft <= 1 
+                        ? 'border-orange-200 bg-orange-50' 
+                        : 'border-green-200 bg-green-50'
+                  }`}>
+                    <div className="flex items-center justify-between">
+                      <div className="flex items-center gap-2">
+                        <Calendar className="w-5 h-5" />
+                        <span className="font-medium">견적 마감일:</span>
+                        <span className="text-lg font-semibold">
+                          {formatDate(biddingDetail.preQuoteDeadline, 'KR')}
+                        </span>
+                      </div>
+                      {isExpired ? (
+                        <Badge variant="destructive" className="ml-2">
+                          마감됨
+                        </Badge>
+                      ) : daysLeft <= 1 ? (
+                        <Badge variant="secondary" className="ml-2 bg-orange-100 text-orange-800">
+                          {daysLeft === 0 ? `${hoursLeft}시간 남음` : `${daysLeft}일 남음`}
+                        </Badge>
+                      ) : (
+                        <Badge variant="secondary" className="ml-2 bg-green-100 text-green-800">
+                          {daysLeft}일 남음
+                        </Badge>
+                      )}
+                    </div>
+                    {isExpired && (
+                      <div className="mt-2 text-sm text-red-600">
+                        ⚠️ 견적 마감일이 지났습니다. 견적 제출이 불가능합니다.
+                      </div>
+                    )}
+                  </div>
+                )
+              })()}
+            </div>
+          )}
         </CardContent>
       </Card>
 
@@ -617,28 +745,124 @@ export function PartnersBiddingPreQuote({ biddingId, companyId }: PartnersBiddin
         </Card>
       )}
 
-      {/* 품목별 견적 작성 섹션 */}
-      {prItems.length > 0 && (
-        <PrItemsPricingTable
-          prItems={prItems}
-          initialQuotations={prItemQuotations}
-          currency={biddingDetail?.currency || 'KRW'}
-          onQuotationsChange={setPrItemQuotations}
-          onTotalAmountChange={setTotalAmount}
-          readOnly={false}
-        />
-      )}
+      {/* 사전견적 참여의사 결정 섹션 */}
+      <Card>
+        <CardHeader>
+          <CardTitle className="flex items-center gap-2">
+            <Users className="w-5 h-5" />
+            사전견적 참여의사 결정
+          </CardTitle>
+        </CardHeader>
+        <CardContent>
+          {participationDecision === null ? (
+            <div className="space-y-4">
+              <p className="text-muted-foreground">
+                해당 입찰의 사전견적에 참여하시겠습니까?
+              </p>
+              <div className="flex gap-3">
+                <Button 
+                  onClick={() => handleParticipationDecision(true)}
+                  disabled={isPending}
+                  className="flex items-center gap-2"
+                >
+                  <CheckCircle className="w-4 h-4" />
+                  참여
+                </Button>
+                <Button 
+                  variant="outline"
+                  onClick={() => handleParticipationDecision(false)}
+                  disabled={isPending}
+                  className="flex items-center gap-2"
+                >
+                  <XCircle className="w-4 h-4" />
+                  미참여
+                </Button>
+              </div>
+            </div>
+          ) : (
+            <div className="space-y-4">
+              <div className={`flex items-center gap-2 p-3 rounded-lg ${
+                participationDecision ? 'bg-green-50 text-green-800' : 'bg-red-50 text-red-800'
+              }`}>
+                {participationDecision ? (
+                  <CheckCircle className="w-5 h-5" />
+                ) : (
+                  <XCircle className="w-5 h-5" />
+                )}
+                <span className="font-medium">
+                  사전견적 {participationDecision ? '참여' : '미참여'}로 설정되었습니다.
+                </span>
+              </div>
+              {participationDecision === false && (
+                <div className="p-4 bg-muted rounded-lg">
+                  <p className="text-muted-foreground">
+                    미참여로 설정되어 견적 작성 섹션이 숨겨집니다. 참여하시려면 아래 버튼을 클릭해주세요.
+                  </p>
+                </div>
+              )}
+              <Button 
+                variant="outline" 
+                size="sm"
+                onClick={() => setParticipationDecision(null)}
+                disabled={isPending}
+              >
+                결정 변경하기
+              </Button>
+            </div>
+          )}
+        </CardContent>
+      </Card>
+
+      {/* 참여 결정 시에만 견적 작성 섹션들 표시 (단, 견적마감일이 지나지 않은 경우에만) */}
+      {participationDecision === true && (() => {
+        // 견적마감일 체크
+        if (biddingDetail?.preQuoteDeadline) {
+          const now = new Date()
+          const deadline = new Date(biddingDetail.preQuoteDeadline)
+          const isExpired = deadline < now
+          
+          if (isExpired) {
+            return (
+              <Card>
+                <CardContent className="pt-6">
+                  <div className="text-center py-8">
+                    <XCircle className="w-12 h-12 text-red-500 mx-auto mb-4" />
+                    <h3 className="text-lg font-semibold text-red-700 mb-2">견적 마감</h3>
+                    <p className="text-muted-foreground">
+                      견적 마감일({formatDate(biddingDetail.preQuoteDeadline, 'KR')})이 지나 견적 제출이 불가능합니다.
+                    </p>
+                  </div>
+                </CardContent>
+              </Card>
+            )
+          }
+        }
+        
+        return true // 견적 작성 가능
+      })() && (
+        <>
+          {/* 품목별 견적 작성 섹션 */}
+          {prItems.length > 0 && (
+            <PrItemsPricingTable
+              prItems={prItems}
+              initialQuotations={prItemQuotations}
+              currency={biddingDetail?.currency || 'KRW'}
+              onQuotationsChange={setPrItemQuotations}
+              onTotalAmountChange={setTotalAmount}
+              readOnly={false}
+            />
+          )}
 
-      {/* 견적 문서 업로드 섹션 */}
-      <SimpleFileUpload
-        biddingId={biddingId}
-        companyId={companyId}
-        userId={userId}
-        readOnly={false}
-      />
+          {/* 견적 문서 업로드 섹션 */}
+          <SimpleFileUpload
+            biddingId={biddingId}
+            companyId={companyId}
+            userId={userId}
+            readOnly={false}
+          />
 
-      {/* 사전견적 폼 섹션 */}
-      <Card>
+          {/* 사전견적 폼 섹션 */}
+          <Card>
         <CardHeader>
           <CardTitle className="flex items-center gap-2">
             <Send className="w-5 h-5" />
@@ -952,30 +1176,23 @@ export function PartnersBiddingPreQuote({ biddingId, companyId }: PartnersBiddin
           )}
 
           <div className="flex justify-end gap-2 pt-4">
-              <>
-                <Button 
-                  variant="outline" 
-                  onClick={handleTempSave} 
-                  disabled={isSaving || isPending}
-                >
-                  <Save className="w-4 h-4 mr-2" />
-                  {isSaving ? '저장중...' : '임시저장'}
-                </Button>
-                <Button onClick={handleSubmitResponse} disabled={isPending || isSaving}>
-                  <Send className="w-4 h-4 mr-2" />
-                  사전견적 제출
-                </Button>
-              </>
-        
-            {/* {biddingDetail?.invitationStatus === 'submitted' && (
-              <div className="flex items-center gap-2 text-green-600">
-                <CheckCircle className="w-5 h-5" />
-                <span className="font-medium">사전견적이 제출되었습니다</span>
-              </div>
-            )} */}
+            <Button 
+              variant="outline" 
+              onClick={handleTempSave} 
+              disabled={isSaving || isPending}
+            >
+              <Save className="w-4 h-4 mr-2" />
+              {isSaving ? '저장중...' : '임시저장'}
+            </Button>
+            <Button onClick={handleSubmitResponse} disabled={isPending || isSaving}>
+              <Send className="w-4 h-4 mr-2" />
+              사전견적 제출
+            </Button>
           </div>
         </CardContent>
       </Card>
+        </>
+      )}
     </div>
   )
 }
diff --git a/lib/bidding/vendor/partners-bidding-toolbar-actions.tsx b/lib/bidding/vendor/partners-bidding-toolbar-actions.tsx
index c2fb6487..1500f6a7 100644
--- a/lib/bidding/vendor/partners-bidding-toolbar-actions.tsx
+++ b/lib/bidding/vendor/partners-bidding-toolbar-actions.tsx
@@ -24,16 +24,6 @@ export function PartnersBiddingToolbarActions({
   const selectedRows = table.getFilteredSelectedRowModel().rows
   const selectedBidding = selectedRows.length === 1 ? selectedRows[0].original : null
 
-  // 사양설명회 참석 여부 버튼 활성화 조건
-  const canManageAttendance = selectedBidding && (
-    selectedBidding.invitationStatus === 'sent' || 
-    selectedBidding.invitationStatus === 'accepted' ||
-    selectedBidding.invitationStatus === 'submitted'
-  )
-
-  // 참여 의사 결정 버튼 활성화 조건 (sent 상태이고 아직 참여의사를 결정하지 않은 경우)
-  const canDecideParticipation = selectedBidding
-
   const handleAttendanceClick = () => {
     if (selectedBidding && setRowAction) {
       setRowAction({ 
@@ -43,33 +33,14 @@ export function PartnersBiddingToolbarActions({
     }
   }
 
-  const handleParticipationClick = () => {
-    if (selectedBidding && setRowAction) {
-      setRowAction({ 
-        type: 'participation', 
-        row: { original: selectedBidding } 
-      })
-    }
-  }
+
 
   return (
     <div className="flex items-center gap-2">
       <Button
         variant="outline"
         size="sm"
-        onClick={handleParticipationClick}
-        disabled={!canDecideParticipation}
-        className="flex items-center gap-2"
-      >
-        <CheckCircle className="w-4 h-4" />
-        참여 의사 결정
-      </Button>
-      
-      <Button
-        variant="outline"
-        size="sm"
         onClick={handleAttendanceClick}
-        disabled={!canManageAttendance}
         className="flex items-center gap-2"
       >
         <Users className="w-4 h-4" />