"use client";

import { DoResult } from "@/app/api/do";
import { DoSearchAll, DoSearchLiteResponse, fetchDoSearch, fetchAllDoSearch, fetchDoSearchList, releaseDo ,startBatchReleaseAsync, getBatchReleaseProgress} from "@/app/api/do/actions";
import {
  startWorkbenchBatchReleaseAsyncV2,
  getWorkbenchBatchReleaseProgress,
} from "@/app/api/doworkbench/actions";

import { useRouter } from "next/navigation";
import React, { ForwardedRef, useCallback, useEffect, useMemo, useState } from "react";
import { useTranslation } from "react-i18next";
import { Criterion } from "../SearchBox";
import { isEmpty, sortBy, uniqBy } from "lodash";
import { arrayToDateString, arrayToDayjs } from "@/app/utils/formatUtil";
import SearchBox from "../SearchBox/SearchBox";
import { EditNote } from "@mui/icons-material";
import InputDataGrid from "../InputDataGrid";
import { CreateConsoDoInput } from "@/app/api/do/actions";
import { TableRow } from "../InputDataGrid/InputDataGrid";
import {
  FooterPropsOverrides,
  GridColDef,
  GridRowModel,
  GridToolbarContainer,
  useGridApiRef,
} from "@mui/x-data-grid";
import {
  FormProvider,
  SubmitErrorHandler,
  SubmitHandler,
  useForm,
} from "react-hook-form"; 
import { Box, Button, Paper, Stack, Tab, Tabs, TablePagination, Typography } from "@mui/material";
import StyledDataGrid from "../StyledDataGrid";
import Swal from "sweetalert2";
import { useSession } from "next-auth/react";
import { SessionWithTokens } from "@/config/authConfig";
import { useDoSearchRowSelection } from "./useDoSearchRowSelection";

type Props = {
  filterArgs?: Record<string, any>;
  searchQuery?: Record<string, any>;
  onDeliveryOrderSearch?: () => void;
};
type SearchBoxInputs = Record<"code" | "status" | "estimatedArrivalDate" | "orderDate" | "supplierName" | "shopName" | "deliveryOrderLines" | "truckLanceCode" | "codeTo" | "statusTo" | "estimatedArrivalDateTo" | "orderDateTo" | "supplierNameTo" | "shopNameTo" | "deliveryOrderLinesTo" | "truckLanceCodeTo", string>;
type SearchParamNames = keyof SearchBoxInputs;
type DoSearchTab = "2F" | "4F" | "TRUCK_X" | "ETRA";
type TabFilter = { floor: "2F" | "4F" | null; isExtra: boolean; forceTruckKeyword?: string };

// put all this into a new component
// ConsoDoForm
type EntryError =
  | {
      [field in keyof DoResult]?: string;
    }
  | undefined;
type DoRow = TableRow<Partial<DoResult>, EntryError>;

/** 已填車線但未選預計送貨日：後端會掃全量再篩，需擋下。 */
function isTruckLaneSearchMissingEta(truckLanceCode: string, estimatedArrivalDate: string): boolean {
  return truckLanceCode.trim() !== "" && estimatedArrivalDate.trim() === "";
}

const DoSearch: React.FC<Props> = ({ filterArgs, searchQuery, onDeliveryOrderSearch }) => {
  const apiRef = useGridApiRef();

  const formProps = useForm<CreateConsoDoInput>({
    defaultValues: {},
  });
  const { setValue } = formProps;
  const errors = formProps.formState.errors;

  
  const { t } = useTranslation("do");
  const router = useRouter();
  const { data: session } = useSession() as { data: SessionWithTokens | null };
  const currentUserId = session?.id ? parseInt(session.id) : undefined;
  //console.log("🔍 DoSearch - session:", session);
  //console.log("🔍 DoSearch - currentUserId:", currentUserId);
  const [searchTimeout, setSearchTimeout] = useState<NodeJS.Timeout | null>(null);

  const [searchAllDos, setSearchAllDos] = useState<DoSearchAll[]>([]);
  const [totalCount, setTotalCount] = useState(0);
  const [isWorkbench, setIsWorkbench] = useState(false);
  const [activeTab, setActiveTab] = useState<DoSearchTab>("2F");
  const [searchBoxResetKey, setSearchBoxResetKey] = useState(0);
  const [pagingController, setPagingController] = useState({
    pageNum: 1,
    pageSize: 10,
  });

  const [currentSearchParams, setCurrentSearchParams] = useState<SearchBoxInputs>({
    code: "",
    status: "",
    estimatedArrivalDate: "",
    orderDate: "",
    supplierName: "",
    shopName: "",
    deliveryOrderLines: "",
    truckLanceCode: "",
    codeTo: "",
    statusTo: "",
    estimatedArrivalDateTo: "",
    orderDateTo: "",
    supplierNameTo: "",
    shopNameTo: "",
    deliveryOrderLinesTo: "",
    truckLanceCodeTo: "",
  });
  const createClearedSearchParams = useCallback(
    (source: SearchBoxInputs): SearchBoxInputs => ({
      code: "",
      status: "",
      estimatedArrivalDate: source.estimatedArrivalDate || "",
      orderDate: "",
      supplierName: "",
      shopName: "",
      deliveryOrderLines: "",
      truckLanceCode: "",
      codeTo: "",
      statusTo: "",
      estimatedArrivalDateTo: source.estimatedArrivalDateTo || "",
      orderDateTo: "",
      supplierNameTo: "",
      shopNameTo: "",
      deliveryOrderLinesTo: "",
      truckLanceCodeTo: "",
    }),
    [],
  );

  const [hasSearched, setHasSearched] = useState(false);
  const [hasResults, setHasResults] = useState(false);

  const {
    rowSelectionModel,
    applyRowSelectionChange,
    resetSelection,
    resolveIdsForBatchRelease,
  } = useDoSearchRowSelection(searchAllDos, setValue);

  // 当搜索条件变化时，重置到第一页
  useEffect(() => {
    setPagingController(p => ({
      ...p,
      pageNum: 1,
    }));
  }, [
    currentSearchParams.code,
    currentSearchParams.shopName,
    currentSearchParams.status,
    currentSearchParams.estimatedArrivalDate,
    currentSearchParams.truckLanceCode,
  ]);


  const searchCriteria: Criterion<SearchParamNames>[] = useMemo(
    () => [
      { label: t("Code"), paramName: "code", type: "text" },
      { label: t("Shop Name"), paramName: "shopName", type: "text" },
      { label: t("Truck Lance Code"), paramName: "truckLanceCode", type: "text" },
      {
        label: t("Estimated Arrival"),
        paramName: "estimatedArrivalDate",
        type: "date",
        preFilledValue: currentSearchParams.estimatedArrivalDate || "",
      },
      {
        label: t("Status"),
        paramName: "status",
        type: "autocomplete",
        options:[
          {label: t('Pending'), value: 'pending'},
          {label: t('Receiving'), value: 'receiving'},
          {label: t('Completed'), value: 'completed'}
        ]
      }
    ],
    [t, currentSearchParams.estimatedArrivalDate],
  );

  const onReset = useCallback(async () => {
    try {
      setSearchAllDos([]);
      setTotalCount(0);
      setHasSearched(false);
      setHasResults(false);
      resetSelection();
      setPagingController({ pageNum: 1, pageSize: 10 });
    } 
    catch (error) {
      console.error("Error: ", error);
      setSearchAllDos([]);
      setTotalCount(0);
  }
  }, [resetSelection]);

  const onDetailClick = useCallback(
    (doResult: DoResult) => {
      if (typeof window !== 'undefined') {
        sessionStorage.setItem('doSearchParams', JSON.stringify(currentSearchParams));
      }
      router.push(`/do/edit?id=${doResult.id}`);
    },
    [router, currentSearchParams],
  );

  const validationTest = useCallback(
    (
      newRow: GridRowModel<DoRow>,
    ): EntryError => {
      const error: EntryError = {};
      console.log(newRow);
      return Object.keys(error).length > 0 ? error : undefined;
    },
    [],
  );

  const columns = useMemo<GridColDef[]>(
    () => [
      {
        field: "id",
        headerName: t("Details"),
        width: 100,
        renderCell: (params) => (
          <Button
            variant="outlined"
            size="small"
            startIcon={<EditNote />}
            onClick={() => onDetailClick(params.row)}
          >
            {t("Details")}
          </Button>
        ),
      },
      {
        field: "code",
        headerName: t("code"),
        flex: 1.5,
      },
      {
        field: "shopName",
        headerName: t("Shop Name"),
        flex: 1,
      },
      {
        field: "supplierName",
        headerName: t("Supplier Name"),
        flex: 1,
      },
      {
        field: "truckLanceCode",
        headerName: t("Truck Lance Code"),
        flex: 1,
        renderCell: (params) => {
          const v = params.row.truckLanceCode;
          if (v == null) return "車線-X";
          if (typeof v === "string" && v.trim() === "") return "車線-X";
          return v;
        }
      },
      {
        field: "orderDate",
        headerName: t("Order Date"),
        flex: 1,
        renderCell: (params) => {
          return params.row.orderDate
            ? arrayToDateString(params.row.orderDate)
            : "N/A";
        },
      },
      {
        field: "estimatedArrivalDate",
        headerName: t("Estimated Arrival"),
        flex: 1,
        renderCell: (params) => {
          return params.row.estimatedArrivalDate
            ? arrayToDateString(params.row.estimatedArrivalDate)
            : "N/A";
        },
      },
      {
        field: "status",
        headerName: t("Status"),
        flex: 1,
        renderCell: (params) => {
          return t(params.row.status);
        },
      },
    ],
    [t, arrayToDateString, onDetailClick],
  );

  const onSubmit = useCallback<SubmitHandler<CreateConsoDoInput>>(
    async (data, event) => {
      const hasErrors = false;
      console.log(errors);
    },
    [errors],
  );
  const onSubmitError = useCallback<SubmitErrorHandler<CreateConsoDoInput>>(
    (errors) => {},
    [],
  );

  const resolveTabFilter = useCallback((tab: DoSearchTab): TabFilter => {
    switch (tab) {
      case "2F":
        return { floor: "2F", isExtra: false };
      case "4F":
        return { floor: "4F", isExtra: false };
      case "TRUCK_X":
        return { floor: null, isExtra: false, forceTruckKeyword: "x" };
      case "ETRA":
      default:
        return { floor: null, isExtra: true };
    }
  }, []);

  const performSearch = useCallback(
    async (
      query: SearchBoxInputs,
      pageNum: number,
      pageSize: number,
      options?: { resetExcludedRows?: boolean; markSearched?: boolean; tabOverride?: DoSearchTab },
    ) => {
      const effectiveTab = options?.tabOverride ?? activeTab;
      const tabFilter = resolveTabFilter(effectiveTab);
      const tabTruckKeyword = tabFilter.forceTruckKeyword ?? "";
      const effectiveTruckLanceCode = tabTruckKeyword || query.truckLanceCode || "";
      const shouldValidateTruckLane = effectiveTab !== "TRUCK_X";

      if (
        shouldValidateTruckLane &&
        isTruckLaneSearchMissingEta(effectiveTruckLanceCode, query.estimatedArrivalDate ?? "")
      ) {
        await Swal.fire({
          icon: "warning",
          title: t("Truck lane search requires date title"),
          text: t("Truck lane search requires date message"),
          confirmButtonText: t("Confirm"),
        });
        return false;
      }

      let estArrStartDate = query.estimatedArrivalDate;
      const time = "T00:00:00";
      if (estArrStartDate !== "") {
        estArrStartDate = `${query.estimatedArrivalDate}${time}`;
      }

      const status = query.status === "All" ? "" : query.status;

      const response = await fetchDoSearch(
        query.code || "",
        query.shopName || "",
        status,
        "",
        "",
        estArrStartDate,
        "",
        pageNum,
        pageSize,
        effectiveTruckLanceCode,
        tabFilter.floor,
        tabFilter.isExtra,
      );

      setSearchAllDos(response.records);
      setTotalCount(response.total);
      if (options?.markSearched ?? false) {
        setHasSearched(true);
        setHasResults(response.records.length > 0);
      }
      if (options?.resetExcludedRows ?? false) {
        resetSelection();
      }
      return true;
    },
    [activeTab, resolveTabFilter, t, resetSelection],
  );

  //SEARCH FUNCTION
  const handleSearch = useCallback(
    async (query: SearchBoxInputs) => {
      try {
        setCurrentSearchParams(query);
        await performSearch(query, pagingController.pageNum, pagingController.pageSize, {
          resetExcludedRows: true,
          markSearched: true,
        });
      } catch (error) {
        console.error("Error: ", error);
        setSearchAllDos([]);
        setTotalCount(0);
        setHasSearched(true);
        setHasResults(false);
        resetSelection();
      }
    },
    [pagingController.pageNum, pagingController.pageSize, performSearch, resetSelection],
  );

  useEffect(() => {
    if (typeof window !== 'undefined') {
      const savedSearchParams = sessionStorage.getItem('doSearchParams');
      
      if (savedSearchParams) {
        try {
          const params = JSON.parse(savedSearchParams);
          setCurrentSearchParams(params);
          
          // 自动使用保存的搜索条件重新搜索，获取最新数据
          const timer = setTimeout(async () => {
            await handleSearch(params);
            // 搜索完成后，清除 sessionStorage
            if (typeof window !== 'undefined') {
              sessionStorage.removeItem('doSearchParams');
              sessionStorage.removeItem('doSearchResults');
              sessionStorage.removeItem('doSearchHasSearched');
            }
          }, 100);
          
          return () => clearTimeout(timer);
        } catch (e) {
          console.error('Error restoring search state:', e);
          // 如果出错，也清除 sessionStorage
          if (typeof window !== 'undefined') {
            sessionStorage.removeItem('doSearchParams');
            sessionStorage.removeItem('doSearchResults');
            sessionStorage.removeItem('doSearchHasSearched');
          }
        }
      }
    }
  }, [handleSearch]);

  const debouncedSearch = useCallback((query: SearchBoxInputs) => {
    if (searchTimeout) {
      clearTimeout(searchTimeout);
    }
    
    const timeout = setTimeout(() => {
      handleSearch(query);
    }, 300);
    
    setSearchTimeout(timeout);
  }, [handleSearch, searchTimeout]);

  // 分页变化时重新搜索
  const handlePageChange = useCallback(
    (event: unknown, newPage: number) => {
      const newPagingController = {
        ...pagingController,
        pageNum: newPage + 1,
      };
      setPagingController(newPagingController);
      if (hasSearched && currentSearchParams) {
        void performSearch(
          currentSearchParams,
          newPagingController.pageNum,
          newPagingController.pageSize,
        ).catch((error) => {
          console.error("Error: ", error);
        });
      }
    },
    [pagingController, hasSearched, currentSearchParams, performSearch],
  );

  const handlePageSizeChange = useCallback(
    (event: React.ChangeEvent<HTMLInputElement>) => {
      const newPageSize = parseInt(event.target.value, 10);
      const newPagingController = {
        pageNum: 1,
        pageSize: newPageSize,
      };
      setPagingController(newPagingController);
      if (hasSearched && currentSearchParams) {
        void performSearch(currentSearchParams, 1, newPageSize).catch((error) => {
          console.error("Error: ", error);
        });
      }
    },
    [hasSearched, currentSearchParams, performSearch],
  );

  const handleBatchRelease = useCallback(async (isWorkbench: boolean) => {
    try {
      const tabFilter = resolveTabFilter(activeTab);
      const tabTruckKeyword = tabFilter.forceTruckKeyword ?? "";
      const effectiveTruckLanceCode = tabTruckKeyword || currentSearchParams.truckLanceCode || "";
      const shouldValidateTruckLane = activeTab !== "TRUCK_X";
      if (
        shouldValidateTruckLane &&
        isTruckLaneSearchMissingEta(
          effectiveTruckLanceCode,
          currentSearchParams.estimatedArrivalDate ?? "",
        )
      ) {
        await Swal.fire({
          icon: "warning",
          title: t("Truck lane search requires date title"),
          text: t("Truck lane search requires date message"),
          confirmButtonText: t("Confirm"),
        });
        return;
      }
      // 根据当前搜索条件获取所有匹配的记录（不分页）
      let estArrStartDate = currentSearchParams.estimatedArrivalDate;
      const time = "T00:00:00";
    
      if(estArrStartDate != ""){
        estArrStartDate = currentSearchParams.estimatedArrivalDate + time;
      }
      
      let status = "";
      if(currentSearchParams.status == "All"){
        status = "";
      }
      else{
        status = currentSearchParams.status;
      }

      // 显示加载提示
      const loadingSwal = Swal.fire({
        title: t("Loading"),
        text: t("Fetching all matching records..."),
        allowOutsideClick: false,
        allowEscapeKey: false,
        showConfirmButton: false,
        didOpen: () => {
          Swal.showLoading();
        }
      });
  
      // 获取所有匹配的记录
      const allMatchingDos = await fetchAllDoSearch(
        currentSearchParams.code || "",
        currentSearchParams.shopName || "",
        status,
        estArrStartDate,
        effectiveTruckLanceCode,
        tabFilter.floor,
        tabFilter.isExtra,
      );
  
      Swal.close();
  
      if (allMatchingDos.length === 0) {
        await Swal.fire({
          icon: "warning",
          title: t("No Records"),
          text: t("No matching records found for batch release."),
          confirmButtonText: t("OK")
        });
        return;
      }

      const idsToRelease = resolveIdsForBatchRelease(
        allMatchingDos.map((d) => d.id),
      );

      if (idsToRelease.length === 0) {
        await Swal.fire({
          icon: "warning",
          title: t("No Records"),
          text: t("No delivery orders selected for batch release. Uncheck orders you want to exclude, or search again to reset selection."),
          confirmButtonText: t("OK"),
        });
        return;
      }
  
      // 显示确认对话框
      const result = await Swal.fire({
        icon: "question",
        title: t("Batch Release"),
        html: `
          <div>
            <p>${t("Selected Shop(s): ")}${idsToRelease.length}</p>
            <p style="font-size: 0.9em; color: #666; margin-top: 8px;">
             
              ${currentSearchParams.code ? `${t("Code")}: ${currentSearchParams.code} ` : ""}
              ${currentSearchParams.shopName ? `${t("Shop Name")}: ${currentSearchParams.shopName} ` : ""}
              ${currentSearchParams.estimatedArrivalDate ? `${t("Estimated Arrival")}: ${currentSearchParams.estimatedArrivalDate} ` : ""}
              ${status ? `${t("Status")}: ${t(status)} ` : ""}
            </p>
          </div>
        `,
        showCancelButton: true,
        confirmButtonText: t("Confirm"),
        cancelButtonText: t("Cancel"),
        confirmButtonColor: "#8dba00",
        cancelButtonColor: "#F04438"
      });
    
      if (result.isConfirmed) {
        try {
          let startRes ;
          if(isWorkbench){
            startRes = await startWorkbenchBatchReleaseAsyncV2({ ids: idsToRelease, userId: currentUserId ?? 1 });
          }
          else{
            startRes = await startBatchReleaseAsync({ ids: idsToRelease, userId: currentUserId ?? 1 });
          }
          //await startBatchReleaseAsync({ ids: idsToRelease, userId: currentUserId ?? 1 });
          const jobId = startRes?.entity?.jobId;
      
          if (!jobId) {
            await Swal.fire({ icon: "error", title: t("Error"), text: t("Failed to start batch release") });
            return;
          }
  
          const progressSwal = Swal.fire({
              title: t("Releasing"),
              text: "0% (0 / 0)",
              allowOutsideClick: false,
              allowEscapeKey: false,
              showConfirmButton: false,
              didOpen: () => {
                Swal.showLoading();
              }
            });
            
          const timer = setInterval(async () => {
            try {
              const p = isWorkbench
  ? await getWorkbenchBatchReleaseProgress(jobId)
  : await getBatchReleaseProgress(jobId);
              
              const e = p?.entity || {};
              const total = e.total ?? 0;
              const finished = e.finished ?? 0;
              const percentage = total > 0 ? Math.round((finished / total) * 100) : 0;
            
            const textContent = document.querySelector('.swal2-html-container');
            if (textContent) {
              textContent.textContent = `${percentage}% (${finished} / ${total})`;
            }
  
            if (p.code === "FINISHED" || e.running === false) {
              clearInterval(timer);
              await new Promise(resolve => setTimeout(resolve, 500));
              Swal.close();
            
              await Swal.fire({
                icon: "success",
                title: t("Completed"),
                text: t("Batch release completed successfully."),
                confirmButtonText: t("Confirm"),
                confirmButtonColor: "#8dba00"
              });
            
              if (currentSearchParams && Object.keys(currentSearchParams).length > 0) {
                await handleSearch(currentSearchParams);
              }
            }
          } catch (err) {
            console.error("progress poll error:", err);
          }
        }, 800);
      } catch (error) {
        console.error("Batch release error:", error);
        await Swal.fire({
          icon: "error",
          title: t("Error"),
          text: t("An error occurred during batch release"),
          confirmButtonText: t("OK")
        });
      }
    }
    } catch (error) {
      console.error("Error fetching all matching records:", error);
      await Swal.fire({
        icon: "error",
        title: t("Error"),
        text: t("Failed to fetch matching records"),
        confirmButtonText: t("OK")
      });
    }
  }, [t, currentUserId, currentSearchParams, handleSearch, resolveIdsForBatchRelease, activeTab, resolveTabFilter]);

  const handleTabChange = useCallback(
    (_: React.SyntheticEvent, nextTab: DoSearchTab) => {
      if (nextTab === activeTab) return;
      const nextSearchParams = createClearedSearchParams(currentSearchParams);
      setActiveTab(nextTab);
      setCurrentSearchParams(nextSearchParams);
      setSearchBoxResetKey((prev) => prev + 1);
      setPagingController((prev) => ({ ...prev, pageNum: 1 }));
      resetSelection();
      // 切換 tab 僅重置搜索條件與結果；由使用者再次按「搜索」後才查詢。
      setSearchAllDos([]);
      setTotalCount(0);
      setHasSearched(false);
      setHasResults(false);
    },
    [
      activeTab,
      currentSearchParams,
      createClearedSearchParams,
      resetSelection,
    ],
  );

  return (
    <>
      <FormProvider {...formProps}>
        <Stack
          spacing={2}
          component="form"
          onSubmit={formProps.handleSubmit(onSubmit, onSubmitError)}
        >
    

    <Paper variant="outlined" sx={{ px: 2, pt: 1 }}>
  <Box display="flex" justifyContent="space-between" alignItems="center">
    <Tabs
      value={activeTab}
      onChange={handleTabChange}
      variant="scrollable"
    >
      <Tab value="2F" label="2/F" />
      <Tab value="4F" label="4/F" />
      <Tab value="TRUCK_X" label={t("Truck X")} />
      <Tab value="ETRA" label={t("Etra")} />
    </Tabs>

    {hasSearched && hasResults && (
      <Button
        name="batch_release"
        variant="contained"
        onClick={() => handleBatchRelease(true)}
      >
        {t("Workbench Batch Release")}
      </Button>
    )}
  </Box>
</Paper>


          <SearchBox
            key={`tab-reset-${searchBoxResetKey}`}
            criteria={searchCriteria}
            onSearch={handleSearch}
            onReset={onReset}
          />

          <Paper variant="outlined" sx={{ overflow: "hidden" }}>
            <StyledDataGrid
              rows={searchAllDos}
              columns={columns}
              checkboxSelection
              rowSelectionModel={rowSelectionModel}
              onRowSelectionModelChange={applyRowSelectionChange}
              slots={{
                footer: FooterToolbar,
                noRowsOverlay: NoRowsOverlay,
              }}
            />
            <TablePagination
              component="div"
              count={totalCount}
              page={(pagingController.pageNum - 1)}
              rowsPerPage={pagingController.pageSize}
              onPageChange={handlePageChange}
              onRowsPerPageChange={handlePageSizeChange}
              rowsPerPageOptions={[10, 25, 50]}
            />
          </Paper>

        </Stack>
      </FormProvider>
    </>
  );
};


const FooterToolbar: React.FC<FooterPropsOverrides> = ({ child }) => {
  return <GridToolbarContainer sx={{ p: 2 }}>{child}</GridToolbarContainer>;
};
const NoRowsOverlay: React.FC = () => {
  const { t } = useTranslation("home");
  return (
    <Box
      display="flex"
      justifyContent="center"
      alignItems="center"
      height="100%"
    >
      <Typography variant="caption">{t("Add some entries!")}</Typography>
    </Box>
  );
};

export default DoSearch;