"use client";

import {
  Box,
  Button,
  Stack,
  TextField,
  Typography,
  Alert,
  CircularProgress,
  Table,
  TableBody,
  TableCell,
  TableContainer,
  TableHead,
  TableRow,
  Paper,
  Checkbox,
  TablePagination,
  Modal,
} from "@mui/material";
import TestQrCodeProvider from '../QrCodeScannerProvider/TestQrCodeProvider';
import { useCallback, useEffect, useState, useRef, useMemo } from "react";
import { useTranslation } from "react-i18next";
import { useRouter } from "next/navigation";
import ArrowBackIcon from '@mui/icons-material/ArrowBack';

//  修改：使用 Job Order API
import { 
  fetchCompletedJobOrderPickOrders,
  updateSecondQrScanStatus,
  submitSecondScanQuantity,
  recordSecondScanIssue,
  unAssignJobOrderPickOrder,
  fetchJobOrderLotsHierarchicalByPickOrderId
} from "@/app/api/jo/actions";
import { fetchNameList, NameList } from "@/app/api/user/actions";
import {
  FormProvider,
  useForm,
} from "react-hook-form";
import SearchBox, { Criterion } from "../SearchBox";
import { CreateStockOutLine } from "@/app/api/pickOrder/actions";
import { updateInventoryLotLineQuantities } from "@/app/api/inventory/actions";
import QrCodeIcon from '@mui/icons-material/QrCode';
import { useQrCodeScannerContext } from '../QrCodeScannerProvider/QrCodeScannerProvider';
import { useSession } from "next-auth/react";
import { SessionWithTokens } from "@/config/authConfig";
import { fetchStockInLineInfo } from "@/app/api/po/actions";
import GoodPickExecutionForm from "./JobmatchForm";
import { BASE_API_URL } from "@/config/api";
interface Props {
  filterArgs: Record<string, any>;
  onBack?: () => void;  // 添加返回回调
}

//  QR Code Modal Component (from GoodPickExecution)
const QrCodeModal: React.FC<{
  open: boolean;
  onClose: () => void;
  lot: any | null;
  onQrCodeSubmit: (lotNo: string) => void;
  combinedLotData: any[];
}> = ({ open, onClose, lot, onQrCodeSubmit, combinedLotData }) => {
  const { t } = useTranslation("jo");
  const { values: qrValues, isScanning, startScan, stopScan, resetScan } = useQrCodeScannerContext();
  const [manualInput, setManualInput] = useState<string>('');
  const [manualInputSubmitted, setManualInputSubmitted] = useState<boolean>(false);
  const [manualInputError, setManualInputError] = useState<boolean>(false);
  const [isProcessingQr, setIsProcessingQr] = useState<boolean>(false);
  const [qrScanFailed, setQrScanFailed] = useState<boolean>(false);
  const [qrScanSuccess, setQrScanSuccess] = useState<boolean>(false);
  const [processedQrCodes, setProcessedQrCodes] = useState<Set<string>>(new Set());
  const [scannedQrResult, setScannedQrResult] = useState<string>('');
  const { data: session } = useSession() as { data: SessionWithTokens | null };

  // Process scanned QR codes
  useEffect(() => {
    if (qrValues.length > 0 && lot && !isProcessingQr && !qrScanSuccess) {
      const latestQr = qrValues[qrValues.length - 1];
      
      if (processedQrCodes.has(latestQr)) {
        console.log("QR code already processed, skipping...");
        return;
      }
      
      setProcessedQrCodes(prev => new Set(prev).add(latestQr));
      
      try {
        const qrData = JSON.parse(latestQr);
        
        if (qrData.stockInLineId && qrData.itemId) {
          setIsProcessingQr(true);
          setQrScanFailed(false);
          
          fetchStockInLineInfo(qrData.stockInLineId)
            .then((stockInLineInfo) => {
              console.log("Stock in line info:", stockInLineInfo);
              setScannedQrResult(stockInLineInfo.lotNo || 'Unknown lot number');
              
              if (stockInLineInfo.lotNo === lot.lotNo) {
                console.log(` QR Code verified for lot: ${lot.lotNo}`);
                setQrScanSuccess(true);
                onQrCodeSubmit(lot.lotNo);
                onClose();
                resetScan();
              } else {
                console.log(`❌ QR Code mismatch. Expected: ${lot.lotNo}, Got: ${stockInLineInfo.lotNo}`);
                setQrScanFailed(true);
                setManualInputError(true);
                setManualInputSubmitted(true);
              }
            })
            .catch((error) => {
              console.error("Error fetching stock in line info:", error);
              setScannedQrResult('Error fetching data');
              setQrScanFailed(true);
              setManualInputError(true);
              setManualInputSubmitted(true);
            })
            .finally(() => {
              setIsProcessingQr(false);
            });
        } else {
          const qrContent = latestQr.replace(/[{}]/g, '');
          setScannedQrResult(qrContent);
          
          if (qrContent === lot.lotNo) {
            setQrScanSuccess(true);
            onQrCodeSubmit(lot.lotNo);
            onClose();
            resetScan();
          } else {
            setQrScanFailed(true);
            setManualInputError(true);
            setManualInputSubmitted(true);
          }
        }
      } catch (error) {
        console.log("QR code is not JSON format, trying direct comparison");
        const qrContent = latestQr.replace(/[{}]/g, '');
        setScannedQrResult(qrContent);
        
        if (qrContent === lot.lotNo) {
          setQrScanSuccess(true);
          onQrCodeSubmit(lot.lotNo);
          onClose();
          resetScan();
        } else {
          setQrScanFailed(true);
          setManualInputError(true);
          setManualInputSubmitted(true);
        }
      }
    }
  }, [qrValues, lot, onQrCodeSubmit, onClose, resetScan, isProcessingQr, qrScanSuccess, processedQrCodes]);

  // Clear states when modal opens
  useEffect(() => {
    if (open) {
      setManualInput('');
      setManualInputSubmitted(false);
      setManualInputError(false);
      setIsProcessingQr(false);
      setQrScanFailed(false);
      setQrScanSuccess(false);
      setScannedQrResult('');
      setProcessedQrCodes(new Set());
    }
  }, [open]);

  useEffect(() => {
    if (lot) {
      setManualInput('');
      setManualInputSubmitted(false);
      setManualInputError(false);
      setIsProcessingQr(false);
      setQrScanFailed(false);
      setQrScanSuccess(false);
      setScannedQrResult('');
      setProcessedQrCodes(new Set());
    }
  }, [lot]);

  // Auto-submit manual input when it matches
  useEffect(() => {
    if (manualInput.trim() === lot?.lotNo && manualInput.trim() !== '' && !qrScanFailed && !qrScanSuccess) {
      console.log(' Auto-submitting manual input:', manualInput.trim());
      
      const timer = setTimeout(() => {
        setQrScanSuccess(true);
        onQrCodeSubmit(lot.lotNo);
        onClose();
        setManualInput('');
        setManualInputError(false);
        setManualInputSubmitted(false);
      }, 200);
      
      return () => clearTimeout(timer);
    }
  }, [manualInput, lot, onQrCodeSubmit, onClose, qrScanFailed, qrScanSuccess]);

  const handleManualSubmit = () => {
    if (manualInput.trim() === lot?.lotNo) {
      setQrScanSuccess(true);
      onQrCodeSubmit(lot.lotNo);
      onClose();
      setManualInput('');
    } else {
      setQrScanFailed(true);
      setManualInputError(true);
      setManualInputSubmitted(true);
    }
  };

  useEffect(() => {
    if (open) {
      startScan();
    }
  }, [open, startScan]);

  return (
    <Modal open={open} onClose={onClose}>
      <Box sx={{
        position: 'absolute',
        top: '50%',
        left: '50%',
        transform: 'translate(-50%, -50%)',
        bgcolor: 'background.paper',
        p: 3,
        borderRadius: 2,
        minWidth: 400,
      }}>
        <Typography variant="h6" gutterBottom>
          {t("QR Code Scan for Lot")}: {lot?.lotNo}
        </Typography>
        
        {isProcessingQr && (
          <Box sx={{ mb: 2, p: 2, backgroundColor: '#e3f2fd', borderRadius: 1 }}>
            <Typography variant="body2" color="primary">
               {t("Processing QR code...")}
            </Typography>
          </Box>
        )}
        
        <Box sx={{ mb: 2 }}>
          <Typography variant="body2" gutterBottom>
            <strong>{t("Manual Input")}:</strong>
          </Typography>
          <TextField
            fullWidth
            size="small"
            value={manualInput}
            onChange={(e) => {
              setManualInput(e.target.value);
              if (qrScanFailed || manualInputError) {
                setQrScanFailed(false);
                setManualInputError(false);
                setManualInputSubmitted(false);
              }
            }}
            sx={{ mb: 1 }}
            error={manualInputSubmitted && manualInputError}
            helperText={
              manualInputSubmitted && manualInputError
                ? `${t("The input is not the same as the expected lot number.")}`
                : ''
            }
          />
          <Button
            variant="contained"
            onClick={handleManualSubmit}
            disabled={!manualInput.trim()}
            size="small"
            color="primary"
          >
            {t("Submit")}
          </Button>
        </Box>

        {qrValues.length > 0 && (
          <Box sx={{ 
            mb: 2, 
            p: 2, 
            backgroundColor: qrScanFailed ? '#ffebee' : qrScanSuccess ? '#e8f5e8' : '#f5f5f5', 
            borderRadius: 1 
          }}>
            <Typography variant="body2" color={qrScanFailed ? 'error' : qrScanSuccess ? 'success' : 'text.secondary'}>
              <strong>{t("QR Scan Result:")}</strong> {scannedQrResult}
            </Typography>

            {qrScanSuccess && (
              <Typography variant="caption" color="success" display="block">
                 {t("Verified successfully!")}
              </Typography>
            )}
          </Box>
        )}

        <Box sx={{ mt: 2, textAlign: 'right' }}>
          <Button onClick={onClose} variant="outlined">
            {t("Cancel")}
          </Button>
        </Box>
      </Box>
    </Modal>
  );
};

const JobPickExecution: React.FC<Props> = ({ filterArgs, onBack }) => {
  const { t } = useTranslation("jo");
  const router = useRouter();
  const { data: session } = useSession() as { data: SessionWithTokens | null };
  
  const currentUserId = session?.id ? parseInt(session.id) : undefined;
  const authTokenRef = useRef<string | null>(null);
  //  修改：使用 Job Order 数据结构
  const [jobOrderData, setJobOrderData] = useState<any>(null);
  const [combinedLotData, setCombinedLotData] = useState<any[]>([]);
  const [combinedDataLoading, setCombinedDataLoading] = useState(false);
  const [originalCombinedData, setOriginalCombinedData] = useState<any[]>([]);
  
  const { values: qrValues, isScanning, startScan, stopScan, resetScan } = useQrCodeScannerContext();
  
  const [qrScanInput, setQrScanInput] = useState<string>('');
  const [qrScanError, setQrScanError] = useState<boolean>(false);
  const [qrScanSuccess, setQrScanSuccess] = useState<boolean>(false);
  const unassignExecutedRef = useRef(false);
  const [pickQtyData, setPickQtyData] = useState<Record<string, number>>({});
  const [searchQuery, setSearchQuery] = useState<Record<string, any>>({});
  const [isSubmittingAll, setIsSubmittingAll] = useState<boolean>(false);
  const [paginationController, setPaginationController] = useState({
    pageNum: 0,
    pageSize: 10,
  });

  const [usernameList, setUsernameList] = useState<NameList[]>([]);

  const initializationRef = useRef(false);

  const formProps = useForm();
  const errors = formProps.formState.errors;

  //  Add QR modal states
  const [qrModalOpen, setQrModalOpen] = useState(false);
  const [selectedLotForQr, setSelectedLotForQr] = useState<any | null>(null);

  //  Add GoodPickExecutionForm states
  const [pickExecutionFormOpen, setPickExecutionFormOpen] = useState(false);
  const [selectedLotForExecutionForm, setSelectedLotForExecutionForm] = useState<any | null>(null);
  //  Add these missing state variables
  const [isManualScanning, setIsManualScanning] = useState<boolean>(false);
  const [processedQrCodes, setProcessedQrCodes] = useState<Set<string>>(new Set());
  const [lastProcessedQr, setLastProcessedQr] = useState<string>('');
  const [isRefreshingData, setIsRefreshingData] = useState<boolean>(false);
  const [currentPickOrderId, setCurrentPickOrderId] = useState<number | null>(null);

  // 添加：unassign 函数
  const handleUnassign = useCallback(async (pickOrderId: number | null) => {
    if (!pickOrderId || !currentUserId) {
      console.log("No pickOrderId or userId to unassign");
      return;
    }
    
    try {
      console.log(`🔄 Unassigning pick order: ${pickOrderId} for user: ${currentUserId}`);
      await unAssignJobOrderPickOrder(pickOrderId);
      console.log(`✅ Successfully unassigned pick order: ${pickOrderId}`);
    } catch (error) {
      console.error(`❌ Error unassigning pick order ${pickOrderId}:`, error);
      // 即使 unassign 失败，也继续执行，不阻塞用户操作
    }
  }, [currentUserId]);
  useEffect(() => {
    if (session && (session as any).accessToken) {
      authTokenRef.current = (session as any).accessToken;
    }
  }, [session]);
  
  const handleUnassignSync = useCallback((pickOrderId: number | null) => {
    if (!pickOrderId || !currentUserId) {
      return;
    }
    
    const url = `${BASE_API_URL}/jo/unassign-job-order-pick-order/${pickOrderId}`;
    const headers: HeadersInit = {
      'Content-Type': 'application/json',
    };
    
    if (authTokenRef.current) {
      headers['Authorization'] = `Bearer ${authTokenRef.current}`;
    }
    
    fetch(url, {
      method: 'POST',
      headers: headers,
      keepalive: true,
      body: JSON.stringify({})
    }).catch((error) => {
      console.error(`❌ Error in sync unassign:`, error);
      // 备用方案：sendBeacon（但无法发送自定义 headers）
      if (navigator.sendBeacon) {
        const blob = new Blob([JSON.stringify({})], { type: 'application/json' });
        navigator.sendBeacon(url, blob);
      }
    });
  }, [currentUserId]);
  //  修改：使用 Job Order API 获取数据
  const fetchJobOrderData = useCallback(async (userId?: number) => {
    setCombinedDataLoading(true);
    try {
      const userIdToUse = userId || currentUserId;
      
      console.log(" fetchJobOrderData called with userId:", userIdToUse);
      
      if (!userIdToUse) {
        console.warn("No userId available, skipping API call");
        setJobOrderData(null);
        setCombinedLotData([]);
        setOriginalCombinedData([]);
        setCurrentPickOrderId(null);
        return;
      }
      window.dispatchEvent(new CustomEvent('jobOrderDataStatus', {
        detail: { 
          hasData: false,
          tabIndex: 1
        }
      }));
      //  使用 Job Order API
      const jobOrderData = await fetchCompletedJobOrderPickOrders(userIdToUse);
      console.log(" Job Order data:", jobOrderData);
      console.log(" Pick Order Code from API:", jobOrderData.pickOrder?.code);
      
      setJobOrderData(jobOrderData);
      
      // 保存 pickOrderId
      if (jobOrderData?.pickOrder?.id) {
        setCurrentPickOrderId(jobOrderData.pickOrder.id);
      }
      
      //  Transform hierarchical data to flat structure for the table
      const flatLotData: any[] = [];
      
      if (jobOrderData.pickOrder && jobOrderData.pickOrderLines) {
        jobOrderData.pickOrderLines.forEach((line: any) => {
          if (line.lots && line.lots.length > 0) {
            line.lots.forEach((lot: any) => {
              flatLotData.push({
                // Pick order info
                pickOrderId: jobOrderData.pickOrder.id,
                pickOrderCode: jobOrderData.pickOrder.code,
                pickOrderConsoCode: jobOrderData.pickOrder.consoCode,
                pickOrderTargetDate: jobOrderData.pickOrder.targetDate,
                pickOrderType: jobOrderData.pickOrder.type,
                pickOrderStatus: jobOrderData.pickOrder.status,
                pickOrderAssignTo: jobOrderData.pickOrder.assignTo,
                
                // Pick order line info
                pickOrderLineId: line.id,
                pickOrderLineRequiredQty: line.requiredQty,
                pickOrderLineStatus: line.status,
                
                // Item info
                itemId: line.itemId,
                itemCode: line.itemCode,
                itemName: line.itemName,
                uomCode: line.uomCode,
                uomDesc: line.uomDesc,
                
                // Lot info
                lotId: lot.lotId,
                lotNo: lot.lotNo,
                expiryDate: lot.expiryDate,
                location: lot.location,
                availableQty: lot.availableQty,
                requiredQty: lot.requiredQty,
                actualPickQty: lot.actualPickQty,
                lotStatus: lot.lotStatus,
                lotAvailability: lot.lotAvailability,
                processingStatus: lot.processingStatus,
                stockOutLineId: lot.stockOutLineId,
                stockOutLineStatus: lot.stockOutLineStatus,
                stockOutLineQty: lot.stockOutLineQty,
                
                // Router info
                routerIndex: lot.routerIndex,
                matchStatus: lot.matchStatus,
                routerArea: lot.routerArea,
                routerRoute: lot.routerRoute,
                uomShortDesc: lot.uomShortDesc,
                handler: lot.handler,
              });
            });
          }
        });
      }
      
      console.log(" Transformed flat lot data:", flatLotData);
      setCombinedLotData(flatLotData);
      setOriginalCombinedData(flatLotData);
      const hasData = flatLotData.length > 0;
      window.dispatchEvent(new CustomEvent('jobOrderDataStatus', {
        detail: { 
          hasData: hasData,
          tabIndex: 1
        }
      }));
      //  计算完成状态并发送事件
      const allCompleted = flatLotData.length > 0 && flatLotData.every((lot: any) => 
        lot.processingStatus === 'completed'
      );
      window.dispatchEvent(new CustomEvent('pickOrderCompletionStatus', {
        detail: { 
          allLotsCompleted: allCompleted,
          tabIndex: 0
        }
      }));
      
    } catch (error: any) {
      console.error("❌ Error fetching job order data:", error);
      
      // 检查是否是 token 错误或认证错误
      const isAuthError = error?.status === 401 || 
                         error?.status === 403 || 
                         error?.message?.toLowerCase().includes('unauthorized') ||
                         error?.message?.toLowerCase().includes('token');
      
      if (isAuthError) {
        console.log("🔒 Authentication error detected, unassigning pick order");
        // Token 错误时也要 unassign
        await handleUnassign(currentPickOrderId);
      }
      
      setJobOrderData(null);
      setCombinedLotData([]);
      setOriginalCombinedData([]);
      setCurrentPickOrderId(null);
      
      //  如果加载失败，禁用打印按钮
      window.dispatchEvent(new CustomEvent('pickOrderCompletionStatus', {
        detail: { 
          allLotsCompleted: false,
          tabIndex: 0
        }
      }));
    } finally {
      setCombinedDataLoading(false);
    }
  }, [currentUserId, currentPickOrderId, handleUnassign]);


  useEffect(() => {

    return () => {
      // Cleanup QR scanner
      if (isManualScanning) {
        console.log("🧹 Second scan component unmounting, stopping QR scanner...");
        stopScan();
        resetScan();
      }

    };
  }, [isManualScanning, stopScan, resetScan]);

  // 添加：处理返回按钮
  const handleBack = useCallback(async () => {
    if (currentPickOrderId && currentUserId) {
      console.log("🔄 Back button clicked, unassigning pick order:", currentPickOrderId);
      await handleUnassign(currentPickOrderId);
    }
    if (onBack) {
      onBack();
    }
  }, [currentPickOrderId, currentUserId, handleUnassign, onBack]);

  const handleSubmitAllScanned = useCallback(async () => {
    const scannedLots = combinedLotData.filter(lot => 
      lot.matchStatus === 'scanned'||
      lot.stockOutLineStatus === 'completed'
    );
    
    if (scannedLots.length === 0) {
      console.log("No scanned items to submit");
      return;
    }
    
    setIsSubmittingAll(true);
    console.log(`📦 Submitting ${scannedLots.length} scanned items in parallel...`);
    
    try {
      const submitPromises = scannedLots.map(async (lot) => {
        const submitQty = lot.requiredQty || lot.pickOrderLineRequiredQty;
        
        console.log(`Submitting item ${lot.itemCode}: qty=${submitQty}`);
        
        const result = await submitSecondScanQuantity(
          lot.pickOrderId,
          lot.itemId,
          {
            qty: submitQty,
            userId: currentUserId !!,
            isMissing: false,
            isBad: false,
            reason: undefined
          }
        );
        
        return { success: result.code === "SUCCESS", itemCode: lot.itemCode };
      });
      
      const results = await Promise.all(submitPromises);
      const successCount = results.filter(r => r.success).length;
 
      console.log(` Batch submit completed: ${successCount}/${scannedLots.length} items submitted`);
      
      await fetchJobOrderData();
      
      if (successCount > 0) {
        setQrScanSuccess(true);
        setTimeout(() => {
          setQrScanSuccess(false);
          // 添加：提交成功后返回到列表
          if (onBack) {
            onBack();
          }
        }, 2000);
      }
      
    } catch (error: any) {
      console.error("Error submitting all scanned items:", error);
      
      const isAuthError = error?.status === 401 || 
                         error?.status === 403 || 
                         error?.message?.toLowerCase().includes('unauthorized') ||
                         error?.message?.toLowerCase().includes('token');
      
      if (isAuthError) {
        console.log("🔒 Authentication error in submit, unassigning pick order");
        await handleUnassign(currentPickOrderId);
      }
      
      setQrScanError(true);
    } finally {
      setIsSubmittingAll(false);
    }
  }, [combinedLotData, fetchJobOrderData, currentPickOrderId, handleUnassign, onBack]);

  const scannedItemsCount = useMemo(() => {
    return combinedLotData.filter(lot => lot.matchStatus === 'scanned').length;
  }, [combinedLotData]);

  //  修改：初始化时加载数据（移除 loadUnassignedOrders）
  useEffect(() => {
    if (session && currentUserId && !initializationRef.current) {
      console.log(" Session loaded, initializing job order...");
      initializationRef.current = true;
      
      fetchJobOrderData();
    }
  }, [session, currentUserId, fetchJobOrderData]);

  const handleQrCodeSubmit = useCallback(async (lotNo: string) => {
    console.log(` Processing Second QR Code for lot: ${lotNo}`);
    
    if (processedQrCodes.has(lotNo)) {
      console.log(`⏭️ Lot ${lotNo} already processed, skipping...`);
      return;
    }
    
    const currentLotData = combinedLotData;
    const matchingLots = currentLotData.filter(lot => 
      lot.lotNo === lotNo || 
      lot.lotNo?.toLowerCase() === lotNo.toLowerCase()
    );
    
    if (matchingLots.length === 0) {
      console.error(`❌ Lot not found: ${lotNo}`);
      setQrScanError(true);
      setQrScanSuccess(false);
      return; 
    }
    
    try {
      let successCount = 0;
      
      for (const matchingLot of matchingLots) {
        const itemKey = `${matchingLot.pickOrderId}_${matchingLot.itemId}`;
        if (processedQrCodes.has(itemKey)) {
          console.log(`⏭️ Item ${matchingLot.itemId} already processed, skipping...`);
          continue;
        }
        
        const result = await updateSecondQrScanStatus(
          matchingLot.pickOrderId, 
          matchingLot.itemId,
          currentUserId !!,
          matchingLot.requiredQty || 1
        );
        console.log("result", result);
        console.log("currentUserId", currentUserId);
        if (result.code === "SUCCESS") {
          successCount++;
          setProcessedQrCodes(prev => new Set(prev).add(itemKey));
          console.log(` Second QR scan status updated for item ${matchingLot.itemId}`);
        } else {
          console.error(`❌ Failed to update second QR scan status: ${result.message}`);
        }
      }
      
      if (successCount > 0) {
        setQrScanSuccess(true);
        setQrScanError(false);
        
        setIsRefreshingData(true);
        await fetchJobOrderData();
        
        setTimeout(() => {
          setQrScanSuccess(false);
          setIsRefreshingData(false);
        }, 500);
      } else {
        setQrScanError(true);
        setQrScanSuccess(false);
      }
    } catch (error: any) {
      console.error("❌ Error processing second QR code:", error);
      
      const isAuthError = error?.status === 401 || 
                         error?.status === 403 || 
                         error?.message?.toLowerCase().includes('unauthorized') ||
                         error?.message?.toLowerCase().includes('token');
      
      if (isAuthError) {
        console.log("🔒 Authentication error in QR submit, unassigning pick order");
        await handleUnassign(currentPickOrderId);
      }
      
      setQrScanError(true);
      setQrScanSuccess(false);
    }
  }, [combinedLotData, fetchJobOrderData, processedQrCodes, currentUserId, currentPickOrderId, handleUnassign]);

  useEffect(() => {
    if (!isManualScanning || qrValues.length === 0 || combinedLotData.length === 0 || isRefreshingData) {
      return;
    }
    
    const latestQr = qrValues[qrValues.length - 1];
    
    if (processedQrCodes.has(latestQr) || lastProcessedQr === latestQr) {
      console.log("⏭️ QR code already processed, skipping...");
      return;
    }
    
    setProcessedQrCodes(prev => new Set(prev).add(latestQr));
    setLastProcessedQr(latestQr);
    
    let lotNo = '';
    try {
      const qrData = JSON.parse(latestQr);
      if (qrData.stockInLineId && qrData.itemId) {
        fetchStockInLineInfo(qrData.stockInLineId)
          .then((stockInLineInfo) => {
            console.log("Outside QR scan - Stock in line info:", stockInLineInfo);
            const extractedLotNo = stockInLineInfo.lotNo;
            if (extractedLotNo) {
              console.log(`Outside QR scan detected (JSON): ${extractedLotNo}`);
              handleQrCodeSubmit(extractedLotNo);
            }
          })
          .catch((error) => {
            console.error("Outside QR scan - Error fetching stock in line info:", error);
          });
        return;
      }
    } catch (error) {
      lotNo = latestQr.replace(/[{}]/g, '');
    }
    
    if (lotNo) {
      console.log(`Outside QR scan detected (direct): ${lotNo}`);
      handleQrCodeSubmit(lotNo);
    }
  }, [qrValues, combinedLotData, handleQrCodeSubmit, processedQrCodes, lastProcessedQr, isManualScanning, isRefreshingData]);

  useEffect(() => {
    return () => {
      if (isManualScanning) {
        console.log("🧹 Second scan component unmounting, stopping QR scanner...");
        stopScan();
        resetScan();
      }
    };
  }, [isManualScanning, stopScan, resetScan]);

  const handleManualInputSubmit = useCallback(() => {
    if (qrScanInput.trim() !== '') {
      handleQrCodeSubmit(qrScanInput.trim());
    }
  }, [qrScanInput, handleQrCodeSubmit]);

  const handleQrCodeSubmitFromModal = useCallback(async (lotNo: string) => {
    if (selectedLotForQr && selectedLotForQr.lotNo === lotNo) {
      console.log(` QR Code verified for lot: ${lotNo}`);
      
      const requiredQty = selectedLotForQr.requiredQty;
      const lotId = selectedLotForQr.lotId;
      
      const stockOutLineData: CreateStockOutLine = {
        consoCode: selectedLotForQr.pickOrderConsoCode,
        pickOrderLineId: selectedLotForQr.pickOrderLineId,
        inventoryLotLineId: selectedLotForQr.lotId,
        qty: 0.0
      };
      
      try {
        setQrModalOpen(false);
        setSelectedLotForQr(null);
        
        const lotKey = `${selectedLotForQr.pickOrderLineId}-${lotId}`;
        setTimeout(() => {
          setPickQtyData(prev => ({
            ...prev,
            [lotKey]: requiredQty
          }));
          console.log(` Auto-set pick quantity to ${requiredQty} for lot ${lotNo}`);
        }, 500);
        
        await fetchJobOrderData();
      } catch (error) {
        console.error("Error creating stock out line:", error);
      }
    }
  }, [selectedLotForQr, fetchJobOrderData]);

  const handlePickQtyChange = useCallback((lotKey: string, value: number | string) => {
    if (value === '' || value === null || value === undefined) {
      setPickQtyData(prev => ({
        ...prev,
        [lotKey]: 0
      }));
      return;
    }
    
    const numericValue = typeof value === 'string' ? parseFloat(value) : value;
    
    if (isNaN(numericValue)) {
      setPickQtyData(prev => ({
        ...prev,
        [lotKey]: 0
      }));
      return;
    }
    
    setPickQtyData(prev => ({
      ...prev,
      [lotKey]: numericValue
    }));
  }, []);

  const handleSubmitPickQtyWithQty = useCallback(async (lot: any, submitQty: number) => {
    try {
      const result = await submitSecondScanQuantity(
        lot.pickOrderId,
        lot.itemId,
        {
          qty: submitQty,
          isMissing: false,
          isBad: false,
          reason: undefined,
          userId: currentUserId ?? 0
        }
      );
      
      if (result.code === "SUCCESS") {
        console.log(` Second scan quantity submitted: ${submitQty}`);
        await fetchJobOrderData();
      } else {
        console.error(`❌ Failed to submit second scan quantity: ${result.message}`);
      }
    } catch (error) {
      console.error("Error submitting second scan quantity:", error);
    }
  }, [fetchJobOrderData, currentUserId]);

  const handlePickExecutionForm = useCallback((lot: any) => {
    console.log("=== Pick Execution Form ===");
    console.log("Lot data:", lot);
    
    if (!lot) {
      console.warn("No lot data provided for pick execution form");
      return;
    }
    
    console.log("Opening pick execution form for lot:", lot.lotNo);
    
    setSelectedLotForExecutionForm(lot);
    setPickExecutionFormOpen(true);
    
    console.log("Pick execution form opened for lot ID:", lot.lotId);
  }, []);

  const handlePickExecutionFormSubmit = useCallback(async (data: any) => {
    try {
      console.log("Pick execution form submitted:", data);
      if (!currentUserId) {
        console.error("❌ No current user ID available");
        return;
      }
      const result = await recordSecondScanIssue(
        selectedLotForExecutionForm.pickOrderId,
        selectedLotForExecutionForm.itemId,
        {
          qty: data.actualPickQty,
          missQty: data.missQty || 0,
          badItemQty: data.badItemQty || 0,
          isMissing: data.missQty > 0,
          isBad: data.badItemQty > 0,
          reason: data.issueRemark || '',
          createdBy: currentUserId,
          type: "match"
        }
      );
      console.log("Pick execution issue recorded:", result);
      
      if (result && result.code === "SUCCESS") {
        console.log(" Pick execution issue recorded successfully");
      } else {
        console.error("❌ Failed to record pick execution issue:", result);
      }
      
      setPickExecutionFormOpen(false);
      setSelectedLotForExecutionForm(null);
      
      await fetchJobOrderData();
    } catch (error) {
      console.error("Error submitting pick execution form:", error);
    }
  }, [currentUserId, selectedLotForExecutionForm, fetchJobOrderData]);

  const calculateRemainingRequiredQty = useCallback((lot: any) => {
    const requiredQty = lot.requiredQty || 0;
    const stockOutLineQty = lot.stockOutLineQty || 0;
    return Math.max(0, requiredQty - stockOutLineQty);
  }, []);

  const searchCriteria: Criterion<any>[] = [
    {
      label: t("Pick Order Code"),
      paramName: "pickOrderCode",
      type: "text",
    },
    {
      label: t("Item Code"),
      paramName: "itemCode",
      type: "text",
    },
    {
      label: t("Item Name"),
      paramName: "itemName",
      type: "text",
    },
    {
      label: t("Lot No"),
      paramName: "lotNo",
      type: "text",
    },
  ];

  const handleSearch = useCallback((query: Record<string, any>) => {
    setSearchQuery({ ...query });
    console.log("Search query:", query);

    if (!originalCombinedData) return;

    const filtered = originalCombinedData.filter((lot: any) => {
      const pickOrderCodeMatch = !query.pickOrderCode || 
        lot.pickOrderCode?.toLowerCase().includes((query.pickOrderCode || "").toLowerCase());
      
      const itemCodeMatch = !query.itemCode || 
        lot.itemCode?.toLowerCase().includes((query.itemCode || "").toLowerCase());
        
      const itemNameMatch = !query.itemName || 
        lot.itemName?.toLowerCase().includes((query.itemName || "").toLowerCase());
      
      const lotNoMatch = !query.lotNo || 
        lot.lotNo?.toLowerCase().includes((query.lotNo || "").toLowerCase());
      
      return pickOrderCodeMatch && itemCodeMatch && itemNameMatch && lotNoMatch;
    });
    
    setCombinedLotData(filtered);
    console.log("Filtered lots count:", filtered.length);
  }, [originalCombinedData]);

  const handleReset = useCallback(() => {
    setSearchQuery({});
    if (originalCombinedData) {
      setCombinedLotData(originalCombinedData);
    }
  }, [originalCombinedData]);

  const handlePageChange = useCallback((event: unknown, newPage: number) => {
    setPaginationController(prev => ({
      ...prev,
      pageNum: newPage,
    }));
  }, []);

  const handlePageSizeChange = useCallback((event: React.ChangeEvent<HTMLInputElement>) => {
    const newPageSize = parseInt(event.target.value, 10);
    setPaginationController({
      pageNum: 0,
      pageSize: newPageSize,
    });
  }, []);

  const paginatedData = useMemo(() => {
    const sortedData = [...combinedLotData].sort((a, b) => {
      const aIndex = a.routerIndex || 0;
      const bIndex = b.routerIndex || 0;
      
      if (aIndex !== bIndex) {
        return aIndex - bIndex;
      }
      
      if (a.pickOrderCode !== b.pickOrderCode) {
        return a.pickOrderCode.localeCompare(b.pickOrderCode);
      }
      
      return (a.lotNo || '').localeCompare(b.lotNo || '');
    });
    
    const startIndex = paginationController.pageNum * paginationController.pageSize;
    const endIndex = startIndex + paginationController.pageSize;
    return sortedData.slice(startIndex, endIndex);
  }, [combinedLotData, paginationController]);

  const handleStartScan = useCallback(() => {
    console.log(" Starting manual QR scan...");
    setIsManualScanning(true);
    setProcessedQrCodes(new Set());
    setLastProcessedQr('');
    setQrScanError(false);
    setQrScanSuccess(false);
    startScan();
  }, [startScan]);

  const handleStopScan = useCallback(() => {
    console.log("⏹️ Stopping manual QR scan...");
    setIsManualScanning(false);
    setQrScanError(false);
    setQrScanSuccess(false);
    stopScan();
    resetScan();
  }, [stopScan, resetScan]);

  useEffect(() => {
    if (isManualScanning && combinedLotData.length === 0) {
      console.log("⏹️ No data available, auto-stopping QR scan...");
      handleStopScan();
    }
  }, [combinedLotData.length, isManualScanning, handleStopScan]);

  const getStatusMessage = useCallback((lot: any) => {
    switch (lot.stockOutLineStatus?.toLowerCase()) {
      case 'pending':
        return t("Please finish QR code scan and pick order.");
      case 'checked':
        return t("Please submit the pick order.");
      case 'partially_completed':
        return t("Partial quantity submitted. Please submit more or complete the order.");
      case 'completed':
        return t("Pick order completed successfully!");
      case 'rejected':
        return t("Lot has been rejected and marked as unavailable.");
      case 'unavailable':
        return t("This order is insufficient, please pick another lot.");
      default:
        return t("Please finish QR code scan and pick order.");
    }
  }, [t]);

  return (
    <TestQrCodeProvider
      lotData={combinedLotData}
      onScanLot={handleQrCodeSubmit}
      filterActive={(lot) => (
        lot.matchStatus !== 'completed' &&
        lot.lotAvailability !== 'rejected'
      )}
    >
      <FormProvider {...formProps}>
        <Stack spacing={2}>
          {/* 添加返回按钮 */}
          {onBack && (
            <Box>
              <Button 
                variant="outlined" 
                onClick={handleBack}
                startIcon={<ArrowBackIcon />}
              >
                {t("Back to List")}
              </Button>
            </Box>
          )}

          {/* Job Order Header */}
          {jobOrderData && (
            <Paper sx={{ p: 2 }}>
              <Stack direction="row" spacing={4} useFlexGap flexWrap="wrap">
                <Typography variant="subtitle1">
                  <strong>{t("Job Order")}:</strong> {jobOrderData.pickOrder?.jobOrder?.code || '-'}
                </Typography>
                <Typography variant="subtitle1">
                  <strong>{t("Pick Order Code")}:</strong> {jobOrderData.pickOrder?.code || '-'}
                </Typography>
                <Typography variant="subtitle1">
                  <strong>{t("Target Date")}:</strong> {jobOrderData.pickOrder?.targetDate || '-'}
                </Typography>
              </Stack>
            </Paper>
          )}

          {/* Combined Lot Table */}
          
          <Box>
          <Button
                  variant="contained"
                  color="success"
                  onClick={handleSubmitAllScanned}
                  disabled={isSubmittingAll}
                  sx={{ minWidth: '160px' }}
                >
                  {isSubmittingAll ? (
                    <>
                      <CircularProgress size={16} sx={{ mr: 1 }} />
                      {t("Submitting...")}
                    </>
                  ) : (
                    t("Confirm All")
                  )}
                </Button>
            {/* 
            <Box sx={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center', mb: 2 }}>
              <Box sx={{ display: 'flex', gap: 2, alignItems: 'center' }}>
                {!isManualScanning ? (
                  <Button
                    variant="contained"
                    startIcon={<QrCodeIcon />}
                    onClick={handleStartScan}
                    color="primary"
                    sx={{ minWidth: '120px' }}
                  >
                    {t("Start QR Scan")}
                  </Button>
                ) : (
                  <Button
                    variant="outlined"
                    startIcon={<QrCodeIcon />}
                    onClick={handleStopScan}
                    color="secondary"
                    sx={{ minWidth: '120px' }}
                  >
                    {t("Stop QR Scan")}
                  </Button>
                )}
                
                <Button
                  variant="contained"
                  color="success"
                  onClick={handleSubmitAllScanned}
                  disabled={scannedItemsCount === 0 || isSubmittingAll}
                  sx={{ minWidth: '160px' }}
                >
                  {isSubmittingAll ? (
                    <>
                      <CircularProgress size={16} sx={{ mr: 1 }} />
                      {t("Submitting...")}
                    </>
                  ) : (
                    `${t("Submit All Scanned")} (${scannedItemsCount})`
                  )}
                </Button>
              </Box>
            </Box>

            {qrScanError && !qrScanSuccess && (
              <Alert severity="error" sx={{ mb: 2 }}>
                {t("QR code does not match any item in current orders.")}
              </Alert>
            )}
            {qrScanSuccess && (
              <Alert severity="success" sx={{ mb: 2 }}>
                {t("QR code verified.")}
              </Alert>
            )}
            */}
            <TableContainer component={Paper}>
              <Table>
                <TableHead>
                  <TableRow>
                    <TableCell>{t("Index")}</TableCell>
                    <TableCell>{t("Route")}</TableCell>
                    <TableCell>{t("Handler")}</TableCell>
                    <TableCell>{t("Item Code")}</TableCell>
                    <TableCell>{t("Item Name")}</TableCell>
                    <TableCell>{t("Lot No")}</TableCell>
                    <TableCell align="right">{t("Lot Required Pick Qty")}</TableCell>
                    {/* <TableCell align="center">{t("Scan Result")}</TableCell> */}
                    <TableCell align="center">{t("Submit Required Pick Qty")}</TableCell>
                  </TableRow>
                </TableHead>
                <TableBody>
                  {paginatedData.length === 0 ? (
                    <TableRow>
                      <TableCell colSpan={8} align="center">
                        <Typography variant="body2" color="text.secondary">
                          {t("No data available")}
                        </Typography>
                      </TableCell>
                    </TableRow>
                  ) : (
                    paginatedData.map((lot, index) => (
                      <TableRow 
                        key={`${lot.pickOrderLineId}-${lot.lotId}`}
                        sx={{
                          backgroundColor: lot.lotAvailability === 'rejected' ? 'grey.100' : 'inherit',
                          opacity: lot.lotAvailability === 'rejected' ? 0.6 : 1,
                          '& .MuiTableCell-root': {
                            color: lot.lotAvailability === 'rejected' ? 'text.disabled' : 'inherit'
                          }
                        }}
                      >
                        <TableCell>
                          <Typography variant="body2" fontWeight="bold">
                            {index + 1}
                          </Typography>
                        </TableCell>
                        <TableCell>
                          <Typography variant="body2">
                            {lot.routerRoute || '-'}
                          </Typography>
                        </TableCell>
                        <TableCell>{lot.handler || '-'}</TableCell>
                        <TableCell>{lot.itemCode}</TableCell>
                        <TableCell>{lot.itemName+'('+lot.uomDesc+')'}</TableCell>
                        <TableCell>
                          <Box>
                            <Typography 
                              sx={{ 
                                color: lot.lotAvailability === 'rejected' ? 'text.disabled' : 'inherit',
                                opacity: lot.lotAvailability === 'rejected' ? 0.6 : 1
                              }}
                            >
                              {lot.lotNo}
                            </Typography>
                          </Box>
                        </TableCell>
                        <TableCell align="right">
                          {(() => {
                            const requiredQty = lot.requiredQty || 0;
                            return requiredQty.toLocaleString()+'('+lot.uomShortDesc+')';
                          })()}
                        </TableCell>

                        <TableCell align="center">
                          <Box sx={{ display: 'flex', justifyContent: 'center' }}>
                            <Stack direction="row" spacing={1} alignItems="center">
                              <Button
                                variant="contained"
                                onClick={async () => {
                                  const lotKey = `${lot.pickOrderLineId}-${lot.lotId}`;
                                  const submitQty = lot.requiredQty || lot.pickOrderLineRequiredQty;
                                  handlePickQtyChange(lotKey, submitQty);
                                  // 先更新 matching 狀態（可選，依你後端流程）
                                  await updateSecondQrScanStatus(lot.pickOrderId, lot.itemId, currentUserId || 0, submitQty);
                                  // 再提交數量並 await refetch，表格會即時更新提料員
                                  await handleSubmitPickQtyWithQty(lot, submitQty);
                                }}
                                disabled={
                                  lot.matchStatus === 'completed' ||
                                  lot.matchStatus == 'scanned' ||
                                  lot.lotAvailability === 'expired' ||
                                  lot.lotAvailability === 'status_unavailable' ||
                                  lot.lotAvailability === 'rejected'
                                }
                                sx={{ 
                                  fontSize: '0.75rem',
                                  py: 0.5,
                                  minHeight: '28px',
                                  minWidth: '70px'
                                }}
                              >
                                {t("Confirm")}
                              </Button>
                              
                              <Button
                                variant="outlined"
                                size="small"
                                onClick={() => handlePickExecutionForm(lot)}
                                disabled={
                                  lot.matchStatus === 'completed' ||
                                  lot.matchStatus == 'scanned' ||
                                  lot.lotAvailability === 'expired' ||
                                  lot.lotAvailability === 'status_unavailable' ||
                                  lot.lotAvailability === 'rejected'
                                }
                                sx={{ 
                                  fontSize: '0.7rem',
                                  py: 0.5,
                                  minHeight: '28px',
                                  minWidth: '60px',
                                  borderColor: 'warning.main',
                                  color: 'warning.main'
                                }}
                                title="Report missing or bad items"
                              >
                                {t("Issue")}
                              </Button>
                            </Stack>
                          </Box>
                        </TableCell>
                      </TableRow>
                    ))
                  )}
                </TableBody>
              </Table>
            </TableContainer>
            
            <TablePagination
              component="div"
              count={combinedLotData.length}
              page={paginationController.pageNum}
              rowsPerPage={paginationController.pageSize}
              onPageChange={handlePageChange}
              onRowsPerPageChange={handlePageSizeChange}
              rowsPerPageOptions={[10, 25, 50]}
              labelRowsPerPage={t("Rows per page")}
              labelDisplayedRows={({ from, to, count }) => 
                `${from}-${to} of ${count !== -1 ? count : `more than ${to}`}`
              }
            />
          </Box>
        </Stack>

        {/*  QR Code Modal */}
        <QrCodeModal
          open={qrModalOpen}
          onClose={() => {
            setQrModalOpen(false);
            setSelectedLotForQr(null);
            stopScan();
            resetScan();
          }}
          lot={selectedLotForQr}
          combinedLotData={combinedLotData}
          onQrCodeSubmit={handleQrCodeSubmitFromModal}
        />

        {/*  Pick Execution Form Modal */}
        {pickExecutionFormOpen && selectedLotForExecutionForm && (
          <GoodPickExecutionForm
            open={pickExecutionFormOpen}
            onClose={() => {
              setPickExecutionFormOpen(false);
              setSelectedLotForExecutionForm(null);
            }}
            onSubmit={handlePickExecutionFormSubmit}
            selectedLot={selectedLotForExecutionForm}
            selectedPickOrderLine={{
              id: selectedLotForExecutionForm.pickOrderLineId,
              itemId: selectedLotForExecutionForm.itemId,
              itemCode: selectedLotForExecutionForm.itemCode,
              itemName: selectedLotForExecutionForm.itemName,
              pickOrderCode: selectedLotForExecutionForm.pickOrderCode,
              availableQty: selectedLotForExecutionForm.availableQty || 0,
              requiredQty: selectedLotForExecutionForm.requiredQty || 0,
              uomDesc: selectedLotForExecutionForm.uomDesc || '',
              uomShortDesc: selectedLotForExecutionForm.uomShortDesc || '',
              pickedQty: selectedLotForExecutionForm.actualPickQty || 0,
              suggestedList: [],
              noLotLines: []
            }}
            pickOrderId={selectedLotForExecutionForm.pickOrderId}
            pickOrderCreateDate={new Date()}
          />
        )}
      </FormProvider>
    </TestQrCodeProvider>
  );
};

export default JobPickExecution;