"use client";

import { GetPickOrderLineInfo, updateStockOutLineStatus } from "@/app/api/pickOrder/actions";
import { QcItemWithChecks } from "@/app/api/qc";
import { PurchaseQcResult } from "@/app/api/po/actions";
import {
  Box,
  Button,
  Grid,
  Modal,
  ModalProps,
  Stack,
  Typography,
  TextField,
  Radio,
  RadioGroup,
  FormControlLabel,
  FormControl,
  Tab,
  Tabs,
  TabsProps,
  Paper,
} from "@mui/material";
import { Dispatch, SetStateAction, useCallback, useEffect, useMemo, useState } from "react";
import { Controller, FormProvider, SubmitHandler, useForm } from "react-hook-form";
import { useTranslation } from "react-i18next";
import { dummyQCData } from "./dummyQcTemplate";
import StyledDataGrid from "../StyledDataGrid";
import { GridColDef } from "@mui/x-data-grid";
import { submitDialogWithWarning } from "../Swal/CustomAlerts";
import EscalationLogTable from "../DashboardPage/escalation/EscalationLogTable";
import EscalationComponent from "../PoDetail/EscalationComponent";
import { fetchPickOrderQcResult, savePickOrderQcResult } from "@/app/api/qc/actions";
import { 
  updateInventoryLotLineStatus 
} from "@/app/api/inventory/actions"; //  导入新的 API
import { dayjsToDateTimeString } from "@/app/utils/formatUtil";
import dayjs from "dayjs";

// Define QcData interface locally
interface ExtendedQcItem extends QcItemWithChecks {
  qcPassed?: boolean;
  failQty?: number;
  remarks?: string;
  order?: number; //  Add order property
  stableId?: string; //  Also add stableId for better row identification
}
interface Props extends CommonProps {
  itemDetail: GetPickOrderLineInfo & { 
    pickOrderCode: string;
    qcResult?: PurchaseQcResult[] 
  };
  qcItems: ExtendedQcItem[];
  setQcItems: Dispatch<SetStateAction<ExtendedQcItem[]>>;
  selectedLotId?: number;
  onStockOutLineUpdate?: () => void;
  lotData: LotPickData[];
  //  Add missing props
  pickQtyData?: PickQtyData;
  selectedRowId?: number;
}

const style = {
  position: "absolute",
  top: "50%",
  left: "50%",
  transform: "translate(-50%, -50%)",
  bgcolor: "background.paper",
  pt: 5,
  px: 5,
  pb: 10,
  display: "block",
  width: { xs: "80%", sm: "80%", md: "80%" },
  maxHeight: "90vh",
  overflowY: "auto",
};
interface PickQtyData {
  [lineId: number]: {
    [lotId: number]: number;
  };
}
interface CommonProps extends Omit<ModalProps, "children"> {
  itemDetail: GetPickOrderLineInfo & { 
    pickOrderCode: string;
    qcResult?: PurchaseQcResult[] 
  };
  setItemDetail: Dispatch<
    SetStateAction<
      | (GetPickOrderLineInfo & {
          pickOrderCode: string;
          warehouseId?: number;
        })
      | undefined
    >
  >;
  qc?: QcItemWithChecks[];
  warehouse?: any[];
}

interface Props extends CommonProps {
  itemDetail: GetPickOrderLineInfo & { 
    pickOrderCode: string;
    qcResult?: PurchaseQcResult[] 
  };
  qcItems: ExtendedQcItem[]; // Change to ExtendedQcItem
  setQcItems: Dispatch<SetStateAction<ExtendedQcItem[]>>; // Change to ExtendedQcItem
  //  Add props for stock out line update
  selectedLotId?: number;
  onStockOutLineUpdate?: () => void;
  lotData: LotPickData[];
}
interface LotPickData {
  id: number; 
  lotId: number;
  lotNo: string;
  expiryDate: string;
  location: string;
  stockUnit: string;
  availableQty: number;
  requiredQty: number;
  actualPickQty: number;
  lotStatus: string;
  lotAvailability: 'available' | 'insufficient_stock' | 'expired' | 'status_unavailable'|'rejected';
  stockOutLineId?: number;
  stockOutLineStatus?: string;
  stockOutLineQty?: number;
}
const PickQcStockInModalVer3: React.FC<Props> = ({
  open,
  onClose,
  itemDetail,
  setItemDetail,
  qc,
  warehouse,
  qcItems,
  setQcItems,
  selectedLotId,
  onStockOutLineUpdate,
  lotData,
  pickQtyData,
  selectedRowId,
}) => {
  const {
    t,
    i18n: { language },
  } = useTranslation("pickOrder");

  const [tabIndex, setTabIndex] = useState(0);
  //const [qcItems, setQcItems] = useState<QcData[]>(dummyQCData);
  const [isCollapsed, setIsCollapsed] = useState<boolean>(true);
  const [isSubmitting, setIsSubmitting] = useState(false);
  const [feedbackMessage, setFeedbackMessage] = useState<string>("");

  // Add state to store submitted data
  const [submittedData, setSubmittedData] = useState<any[]>([]);

  const formProps = useForm<any>({
    defaultValues: {
      qcAccept: true,
      acceptQty: null,
      qcDecision: "1", // Default to accept
      ...itemDetail,
    },
  });
  const { control, register, formState: { errors }, watch, setValue } = formProps;

  const qcDecision = watch("qcDecision");
  const accQty = watch("acceptQty");

  const closeHandler = useCallback<NonNullable<ModalProps["onClose"]>>(
    (...args) => {
      onClose?.(...args);
    },
    [onClose],
  );

  const handleTabChange = useCallback<NonNullable<TabsProps["onChange"]>>(
    (_e, newValue) => {
      setTabIndex(newValue);
    },
    [],
  );

  // Save failed QC results only
  const saveQcResults = async (qcData: any) => {
    try {
      const qcResults = qcData.qcItems
        .map((item: any) => ({
          qcItemId: item.id,
          itemId: itemDetail.itemId,
          stockInLineId: null,
          stockOutLineId: 1, // Fixed to 1 as requested
          failQty: item.isPassed ? 0 : (item.failQty || 0), // 0 for passed, actual qty for failed
          type: "pick_order_qc",
          remarks: item.remarks || "",
          qcPassed: item.isPassed,  //  This will now be included
        }));

      // Store the submitted data for debug display
      setSubmittedData(qcResults);
      console.log("Saving QC results:", qcResults);

      // Use the corrected API function instead of manual fetch
      for (const qcResult of qcResults) {
        const response = await savePickOrderQcResult(qcResult);
        console.log("QC Result save success:", response);
        
        // Check if the response indicates success
        if (!response.id) {
          throw new Error(`Failed to save QC result: ${response.message || 'Unknown error'}`);
        }
      }
      return true;
    } catch (error) {
      console.error("Error saving QC results:", error);
      return false;
    }
  };

  //  修改：在组件开始时自动设置失败数量
  useEffect(() => {
    if (itemDetail && qcItems.length > 0 && selectedLotId) {
      //  获取选中的批次数据
      const selectedLot = lotData.find(lot => lot.stockOutLineId === selectedLotId);
      if (selectedLot) {
        //  自动将 Lot Required Pick Qty 设置为所有失败项目的 failQty
        const updatedQcItems = qcItems.map((item, index) => ({
          ...item,
          failQty: selectedLot.requiredQty || 0, // 使用 Lot Required Pick Qty
          //  Add stable order and ID fields
          order: index,
          stableId: `qc-${item.id}-${index}`
        }));
        setQcItems(updatedQcItems);
      }
    }
  }, [itemDetail, qcItems.length, selectedLotId, lotData]);

  //  Add this helper function at the top of the component
  const safeClose = useCallback(() => {
    if (onClose) {
      // Create a mock event object that satisfies the Modal onClose signature
      const mockEvent = {
        target: null,
        currentTarget: null,
        type: 'close',
        preventDefault: () => {},
        stopPropagation: () => {},
        bubbles: false,
        cancelable: false,
        defaultPrevented: false,
        isTrusted: false,
        timeStamp: Date.now(),
        nativeEvent: null,
        isDefaultPrevented: () => false,
        isPropagationStopped: () => false,
        persist: () => {},
        eventPhase: 0,
        isPersistent: () => false
      } as any;
      
      //  Fixed: Pass both event and reason parameters
      onClose(mockEvent, 'escapeKeyDown'); // 'escapeKeyDown' is a valid reason
    }
  }, [onClose]);

  //  修改：移除 alert 弹窗，改为控制台日志
  const onSubmitQc = useCallback<SubmitHandler<any>>(
    async (data, event) => {
      setIsSubmitting(true);
      
      try {
        const qcAccept = qcDecision === "1";
        const acceptQty = Number(accQty) || null;
        
        const validationErrors : string[] = [];
        const selectedLot = lotData.find(lot => lot.stockOutLineId === selectedLotId);
        
        //  Add safety check for selectedLot
        if (!selectedLot) {
          console.error("Selected lot not found");
          return;
        }
        
        const itemsWithoutResult = qcItems.filter(item => item.qcPassed === undefined);
        if (itemsWithoutResult.length > 0) {
          validationErrors.push(`${t("QC items without result")}: ${itemsWithoutResult.map(item => item.code).join(", ")}`);
        }
  
        if (validationErrors.length > 0) {
          console.error(`QC validation failed: ${validationErrors.join(", ")}`);
          return;
        }
  
        const qcData = {
          qcAccept,
          acceptQty,
          qcItems: qcItems.map(item => ({
            id: item.id,
            qcItem: item.code,
            qcDescription: item.description || "",
            isPassed: item.qcPassed,
            failQty: item.qcPassed ? 0 : (selectedLot.requiredQty || 0),
            remarks: item.remarks || "",
          })),
        };
  
        console.log("Submitting QC data:", qcData);
  
        const saveSuccess = await saveQcResults(qcData);
        if (!saveSuccess) {
          console.error("Failed to save QC results");
          return;
        }
  
        //  Handle different QC decisions
        if (selectedLotId) {
          try {
            const allPassed = qcData.qcItems.every(item => item.isPassed);
            
            if (qcDecision === "2") {
              //  QC Decision 2: Report and Re-pick
              console.log("QC Decision 2 - Report and Re-pick: Rejecting lot and marking as unavailable");
              
              //  Inventory lot line status: unavailable
              if (selectedLot) {
                try {
                  console.log("=== DEBUG: Updating inventory lot line status ===");
                  console.log("Selected lot:", selectedLot);
                  console.log("Selected lot ID:", selectedLotId);
                  
                  //  FIX: Only send the fields that the backend expects
                  const updateData = {
                    inventoryLotLineId: selectedLot.lotId,
                    status: 'unavailable'
                    // ❌ Remove qty and operation - backend doesn't expect these
                  };
                  
                  console.log("Update data:", updateData);
                  
                  const result = await updateInventoryLotLineStatus(updateData);
                  console.log(" Inventory lot line status updated successfully:", result);
                  
                } catch (error) {
                  console.error("❌ Error updating inventory lot line status:", error);
                  console.error("Error details:", {
                    selectedLot,
                    selectedLotId,
                    acceptQty
                  });
                  
                  // Show user-friendly error message

                  return; // Stop execution if this fails
                }
              } else {
                console.error("❌ Selected lot not found for inventory update");
                alert("Selected lot not found. Cannot update inventory status.");
                return;
              }
              
              //  Close modal and refresh data
              safeClose(); //  Fixed: Use safe close function with both parameters
              if (onStockOutLineUpdate) {
                onStockOutLineUpdate();
              }
              
            } else if (qcDecision === "1") {
              //  QC Decision 1: Accept
              console.log("QC Decision 1 - Accept: QC passed");
              
              //  Stock out line status: checked (QC completed)
              await updateStockOutLineStatus({
                id: selectedLotId,
                status: 'checked',
                qty: acceptQty || 0
              });
              
              //  Inventory lot line status: NO CHANGE needed
              // Keep the existing status from handleSubmitPickQty
              
              //  Close modal and refresh data
              safeClose(); //  Fixed: Use safe close function with both parameters
              if (onStockOutLineUpdate) {
                onStockOutLineUpdate();
              }
            }
            
            console.log("Stock out line status updated successfully after QC");
            
            // Call callback to refresh data
            if (onStockOutLineUpdate) {
              onStockOutLineUpdate();
            }
          } catch (error) {
            console.error("Error updating stock out line status after QC:", error);
          }
        }
  
        console.log("QC results saved successfully!");
  
        //  Show warning dialog for failed QC items when accepting
        if (qcDecision === "1" && !qcData.qcItems.every((q) => q.isPassed)) {
          submitDialogWithWarning(() => {
            closeHandler?.({}, 'escapeKeyDown');
          }, t, {title:"有不合格檢查項目，確認接受出庫？", confirmButtonText: "Confirm", html: ""});
          return;
        }
  
        closeHandler?.({}, 'escapeKeyDown');
      } catch (error) {
        console.error("Error in QC submission:", error);
        if (error instanceof Error) {
          console.error("Error details:", error.message);
          console.error("Error stack:", error.stack);
        }
      } finally {
        setIsSubmitting(false);
      }
    },
    [qcItems, closeHandler, t, itemDetail, qcDecision, accQty, selectedLotId, onStockOutLineUpdate, lotData, pickQtyData, selectedRowId],
  );
  // DataGrid columns (QcComponent style)
  const qcColumns: GridColDef[] = useMemo(
    () => [
      {
        field: "code",
        headerName: t("qcItem"),
        flex: 2,
        renderCell: (params) => (
          <Box>
            <b>{`${params.api.getRowIndexRelativeToVisibleRows(params.id) + 1}. ${params.value}`}</b><br/>
            {params.row.name}<br/>
          </Box>
        ),
      },
      {
        field: "qcPassed",
        headerName: t("qcResult"),
        flex: 1.5,
        renderCell: (params) => {
          const current = params.row;
          return (
            <FormControl>
              <RadioGroup
                row
                aria-labelledby="qc-result"
                value={current.qcPassed === undefined ? "" : (current.qcPassed ? "true" : "false")}
                onChange={(e) => {
                  const value = e.target.value === "true";
                  //  Simple state update
                  setQcItems(prev => 
                    prev.map(item => 
                      item.id === params.id 
                        ? { ...item, qcPassed: value }
                        : item
                    )
                  );
                }}
                name={`qcPassed-${params.id}`}
              >
                <FormControlLabel 
                  value="true" 
                  control={<Radio />} 
                  label="合格" 
                  sx={{
                    color: current.qcPassed === true ? "green" : "inherit",
                    "& .Mui-checked": {color: "green"}
                  }}
                />
                <FormControlLabel 
                  value="false" 
                  control={<Radio />} 
                  label="不合格" 
                  sx={{
                    color: current.qcPassed === false ? "red" : "inherit",
                    "& .Mui-checked": {color: "red"}
                  }}
                />
              </RadioGroup>
            </FormControl>
          );
        },
      },
      {
        field: "failQty",
        headerName: t("failedQty"),
        flex: 1,
        renderCell: (params) => (
          <TextField
            type="number"
            size="small"
            //  修改：失败项目自动显示 Lot Required Pick Qty
            value={!params.row.qcPassed ? (0) : 0}
            disabled={params.row.qcPassed}
            //  移除 onChange，因为数量是固定的
            // onChange={(e) => {
            //   const v = e.target.value;
            //   const next = v === "" ? undefined : Number(v);
            //   if (Number.isNaN(next)) return;
            //   setQcItems((prev) =>
            //     prev.map((r) => (r.id === params.id ? { ...r, failQty: next } : r))
            //   );
            // }}
            onClick={(e) => e.stopPropagation()}
            onMouseDown={(e) => e.stopPropagation()}
            onKeyDown={(e) => e.stopPropagation()}
            inputProps={{ min: 0, max: itemDetail?.requiredQty || 0 }}
            sx={{ width: "100%" }}
          />
        ),
      },
      {
        field: "remarks",
        headerName: t("remarks"),
        flex: 2,
        renderCell: (params) => (
          <TextField
            size="small"
            value={params.value ?? ""}
            onChange={(e) => {
              const remarks = e.target.value;
              setQcItems((prev) =>
                prev.map((r) => (r.id === params.id ? { ...r, remarks } : r))
              );
            }}
            onClick={(e) => e.stopPropagation()}
            onMouseDown={(e) => e.stopPropagation()}
            onKeyDown={(e) => e.stopPropagation()}
            sx={{ width: "100%" }}
          />
        ),
      },
    ],
    [t],
  );

  //  Add stable update function
  const handleQcResultChange = useCallback((itemId: number, qcPassed: boolean) => {
    setQcItems(prevItems => 
      prevItems.map(item => 
        item.id === itemId 
          ? { ...item, qcPassed }
          : item
      )
    );
  }, []);

  //  Remove duplicate functions
  const getRowId = useCallback((row: any) => {
    return row.id; // Just use the original ID
  }, []);

  //  Remove complex sorting logic
  // const stableQcItems = useMemo(() => { ... }); // Remove
  // const sortedQcItems = useMemo(() => { ... }); // Remove

  //  Use qcItems directly in DataGrid
  return (
    <>
      <FormProvider {...formProps}>
        <Modal open={open} onClose={closeHandler}>
          <Box sx={style}>
            <Grid container justifyContent="flex-start" alignItems="flex-start" spacing={2}>
              <Grid item xs={12}>
                <Tabs
                  value={tabIndex}
                  onChange={handleTabChange}
                  variant="scrollable"
                >
                  <Tab label={t("QC Info")} iconPosition="end" />
                  <Tab label={t("Escalation History")} iconPosition="end" />
                </Tabs>
              </Grid>
              
              {tabIndex == 0 && (
                <>
                  <Grid item xs={12}>
                    <Box sx={{ mb: 2, p: 2, backgroundColor: '#f5f5f5', borderRadius: 1 }}>
                      <Typography variant="h5" component="h2" sx={{ fontWeight: 'bold', color: '#333' }}>
                        Group A - 急凍貨類 (QCA1-MEAT01)
                      </Typography>
            
                      <Typography variant="subtitle1" sx={{ color: '#666' }}>
                          <b>品檢類型</b>：OQC
                      </Typography>
                      <Typography variant="subtitle2" sx={{ color: '#666' }}>
                          記錄探測溫度的時間，請在1小時内完成出庫盤點，以保障食品安全<br/>
                          監察方法：目視檢查、嗅覺檢查和使用適當的食物溫度計，檢查食物溫度是否符合指標
                      </Typography>

                    </Box>
                    
                    <StyledDataGrid
                      columns={qcColumns}
                      rows={qcItems} //  Use qcItems directly
                      autoHeight
                      getRowId={getRowId} //  Simple row ID function
                    />
                  </Grid>
                </>
              )}
              
              {tabIndex == 1 && (
                <>
                  <Grid item xs={12}>
                    <EscalationLogTable items={[]}/>
                  </Grid>
                </>
              )}
              
              <Grid item xs={12}>
  <FormControl>
    <Controller
      name="qcDecision"
      control={control}
      defaultValue="1"
      render={({ field }) => (
        <RadioGroup
          row
          aria-labelledby="demo-radio-buttons-group-label"
          {...field}
          value={field.value}
          onChange={(e) => {
            const value = e.target.value.toString();
            if (value != "1" && Boolean(errors.acceptQty)) {
              setValue("acceptQty", itemDetail.requiredQty ?? 0);
            }
            field.onChange(value);
          }}
        >
          <FormControlLabel
            value="1" 
            control={<Radio />} 
            label={t("Accept Stock Out")} 
          />
          

          {/*  Combirne options 2 & 3 into one */}
          <FormControlLabel
            value="2" 
            control={<Radio />}
            sx={{"& .Mui-checked": {color: "blue"}}}
            label={t("Report and Pick another lot")} 
          />
        </RadioGroup>
      )}
    />
  </FormControl>
</Grid>

{/*  Show escalation component when QC Decision = 2 (Report and Re-pick) */}

              
              <Grid item xs={12} sx={{ mt: 2 }}>
                <Stack direction="row" justifyContent="flex-start" gap={1}>
                  <Button
                    variant="contained"
                    onClick={formProps.handleSubmit(onSubmitQc)}
                    disabled={isSubmitting}
                    sx={{ whiteSpace: 'nowrap' }}
                  >
                    {isSubmitting ? "Submitting..." : "Submit QC"}
                  </Button>
                  <Button
                    variant="outlined"
                    onClick={() => {
                      closeHandler?.({}, 'escapeKeyDown');
                    }}
                  >
                    Cancel
                  </Button>
                </Stack>
              </Grid>
            </Grid>
          </Box>
        </Modal>
      </FormProvider>
    </>
  );
};

export default PickQcStockInModalVer3;