"use client";
import { QcItemWithChecks, QcData } from "@/app/api/qc";
import {
  Autocomplete,
  Box,
  Button,
  Divider,
  Grid,
  Modal,
  ModalProps,
  Stack,
  Tab,
  Tabs,
  TabsProps,
  TextField,
  Typography,
} from "@mui/material";
import { Dispatch, SetStateAction, useCallback, useEffect, useMemo, useState } from "react";
import { FormProvider, SubmitErrorHandler, SubmitHandler, useForm } from "react-hook-form";
import { StockInLineRow } from "./PoInputGrid";
import { useTranslation } from "react-i18next";
import StockInForm from "./StockInForm";
import QcComponent from "./QcComponent";
import { dummyPutAwayLine, dummyQCData } from "./dummyQcTemplate";
import PutAwayForm from "./PutAwayForm";
import { GridRowModes, GridRowSelectionModel, useGridApiRef } from "@mui/x-data-grid";
import {msg, submitDialogWithWarning} from "../Swal/CustomAlerts";
import { INPUT_DATE_FORMAT, arrayToDateString, dayjsToInputDateString } from "@/app/utils/formatUtil";
import dayjs from "dayjs";
import { fetchPoQrcode } from "@/app/api/pdf/actions";
import { downloadFile } from "@/app/utils/commonUtil";
import { PrinterCombo } from "@/app/api/settings/printer";
import { EscalationResult } from "@/app/api/escalation";
import { SessionWithTokens } from "@/config/authConfig";
import { GridRowModesModel } from "@mui/x-data-grid";
import { isEmpty } from "lodash";
import { EscalationCombo } from "@/app/api/user";
import { truncateSync } from "fs";
import { ModalFormInput, StockInLineInput, StockInLine } from "@/app/api/stockIn";
import { PurchaseQcResult, StockInLineEntry, updateStockInLine, printQrCodeForSil, PrintQrCodeForSilRequest } from "@/app/api/stockIn/actions";
import { fetchStockInLineInfo } from "@/app/api/stockIn/actions";
import { fetchQcResult } from "@/app/api/qc/actions";
import { fetchEscalationLogsByStockInLines } from "@/app/api/escalation/actions";
import LoadingComponent from "../General/LoadingComponent";


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: "90%", sm: "90%", md: "90%" },
  height: { xs: "90%", sm: "90%", md: "90%" },
};
interface CommonProps extends Omit<ModalProps, "children"> {
  // itemDetail: StockInLine & { qcResult?: PurchaseQcResult[] } & { escResult?: EscalationResult[] } | undefined;
  inputDetail: StockInLineInput | undefined;
  session: SessionWithTokens | null;
  warehouse?: any[];
  printerCombo: PrinterCombo[];
  onClose: () => void;
}
interface Props extends CommonProps {
  // itemDetail: StockInLine & { qcResult?: PurchaseQcResult[] } & { escResult?: EscalationResult[] };
}
const PoQcStockInModalVer2: React.FC<Props> = ({
  open,
  onClose,
  // itemDetail,
  inputDetail,
  session,
  warehouse,
  printerCombo,
}) => {
  const {
    t,
    i18n: { language },
  } = useTranslation("purchaseOrder");

  const [stockInLineInfo, setStockInLineInfo] = useState<StockInLine>();
  const [isLoading, setIsLoading] = useState<Boolean>(false);
  // const [viewOnly, setViewOnly] = useState(false);

  // Select Printer
  const [selectedPrinter, setSelectedPrinter] = useState(printerCombo[0]);
  const [printQty, setPrintQty] = useState(1);
  const [tabIndex, setTabIndex] = useState(0);

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

  const fetchStockInLineData = useCallback(
    async (stockInLineId: number) => {
      try {
        const res = await fetchStockInLineInfo(stockInLineId);
        if (res) {
          console.log("%c Fetched Stock In Line: ", "color:orange", res);
          setStockInLineInfo({...inputDetail, ...res});
          fetchQcResultData(stockInLineId);
          
        } else throw("Result is undefined");
      } catch (e) {
        console.log("%c Error when fetching Stock In Line: ", "color:red", e);
      }
    },[fetchStockInLineInfo, inputDetail]
  );

  const fetchQcResultData = useCallback(  // TODO: put this inside QC Component
    async (stockInLineId: number) => {
      try {
        const res = await fetchQcResult(stockInLineId);
        if (res.length > 0) {
          console.log("%c Fetched Qc Result: ", "color:orange", res);
          setStockInLineInfo((prev) => ({...prev, qcResult: res} as StockInLine));
          formProps.setValue("qcResult", res);

          fetchEscalationLogData(stockInLineId);

        } else {setStockInLineInfo((prev) => ({...prev, qcResult: []} as StockInLine));}
        // } else throw("Result is undefined");
      } catch (e) {
        console.log("%c Error when fetching Qc Result: ", "color:red", e);
      }
    },[fetchQcResult]
  );

  const fetchEscalationLogData = useCallback(
    async (stockInLineId: number) => {
      try {
        const res = await fetchEscalationLogsByStockInLines([stockInLineId]);
        if (res.length > 0) {
          console.log("%c Fetched Escalation Log: ", "color:orange", res[0]);
          setStockInLineInfo((prev) => ({...prev, escResult: res} as StockInLine));
          // formProps.setValue("escalationLog", res[0]);

        } else throw("Result is undefined");
      } catch (e) {
        console.log("%c Error when fetching EscalationLog: ", "color:red", e);
      }
    },[fetchEscalationLogsByStockInLines]
  );

  // Fetch info if id is input
  useEffect(() => {
    setIsLoading(true);
    if (inputDetail && open) {
      console.log("%c Opened Modal with input:", "color:yellow", inputDetail);
      if (inputDetail.id) {
        const id = inputDetail.id;
        fetchStockInLineData(id);
      }
    }
  }, [open]);

  // Make sure stock in line info is fetched
  useEffect(() => {
    if (stockInLineInfo) {
      if (stockInLineInfo.id) {
        if (isLoading) {
          formProps.reset({
            ...defaultNewValue
          });
          console.log("%c Modal loaded successfully", "color:lime");
          setIsLoading(false);
        }
      }
    }
    
  }, [stockInLineInfo]);

  const defaultNewValue = useMemo(() => {
    const d = stockInLineInfo;
    if (d !== undefined) {
      // console.log("%c sil info", "color:yellow", d )
      return (
        {
          ...d,
          // status: d.status ?? "pending",
          productionDate: d.productionDate ? arrayToDateString(d.productionDate, "input") : undefined,
          expiryDate: d.expiryDate ? arrayToDateString(d.expiryDate, "input") : undefined,
          receiptDate: d.receiptDate ? arrayToDateString(d.receiptDate, "input")
          : dayjs().add(0, "month").format(INPUT_DATE_FORMAT),
          acceptQty: d.demandQty?? d.acceptedQty,
          // escResult: (d.escResult && d.escResult?.length > 0) ? d.escResult : [],
          // qcResult: (d.qcResult && d.qcResult?.length > 0) ? d.qcResult : [],//[...dummyQCData],
          warehouseId: d.defaultWarehouseId ?? 1,
          putAwayLines: d.putAwayLines?.map((line) => ({...line, printQty: 1, _isNew: false, _disableDelete: true})) ?? [],
        } as ModalFormInput
      )
    } return undefined
  }, [stockInLineInfo])

// const [qcItems, setQcItems] = useState(dummyQCData)
  const formProps = useForm<ModalFormInput>({
    defaultValues: {
      ...defaultNewValue,
    },
  });
  
  const closeHandler = useCallback<NonNullable<ModalProps["onClose"]>>(
    () => {
      setStockInLineInfo(undefined);
      formProps.reset({});
      onClose?.();
    },
    [onClose],
  );
  
  const isPutaway = () => {
    if (stockInLineInfo) {
      const status = stockInLineInfo.status;
      return status == "received";

    } else return false;
  };

  // Get show putaway
  const showPutaway = useMemo(() => {
    if (stockInLineInfo) {
      const status = stockInLineInfo.status;
      return status !== "pending" && status !== "escalated" && status !== "rejected";
    }
    return false;
  }, [stockInLineInfo]);

  // Get is view only
  const viewOnly = useMemo(() => {
    if (stockInLineInfo) {
      if (stockInLineInfo.status) {
        const status = stockInLineInfo.status;
        const isViewOnly = status.toLowerCase() == "completed"
        || status.toLowerCase() == "partially_completed" // TODO update DB
        || status.toLowerCase() == "rejected"
        || (status.toLowerCase() == "escalated" && session?.id != stockInLineInfo.handlerId)
        if (showPutaway) { setTabIndex(1); } else { setTabIndex(0); }
        return isViewOnly;
      }
    }
    return true;
  }, [stockInLineInfo])

  const [openPutaway, setOpenPutaway] = useState(false);
  const onOpenPutaway = useCallback(() => {
    
    setOpenPutaway(true);
  }, []);
  const onClosePutaway = useCallback(() => {
    setOpenPutaway(false);
  }, []);

  // Stock In submission handler
  const onSubmitStockIn = useCallback<SubmitHandler<ModalFormInput>>(
    async (data, event) => {
      console.log("Stock In Submission:", event!.nativeEvent);
      // Extract only stock-in related fields
      const stockInData = {
        //    quantity: data.quantity,
        //    receiptDate: data.receiptDate,
        //    batchNumber: data.batchNumber,
        //    expiryDate: data.expiryDate,
        //    warehouseId: data.warehouseId,
        //    location: data.location,
        //    unitCost: data.unitCost,
        data: data,
        // Add other stock-in specific fields from your form
      };
      console.log("Stock In Data:", stockInData);
      // Handle stock-in submission logic here
      // e.g., call API, update state, etc.
    },
    [],
  );

  // QC submission handler
  const onSubmitErrorQc = useCallback<SubmitErrorHandler<ModalFormInput>>(
    async (data, event) => {
      console.log("Error", data);
    }, []
  );

  // QC submission handler
  const onSubmitQc = useCallback<SubmitHandler<ModalFormInput>>(
    async (data, event) => {
      console.log("QC Submission:", event!.nativeEvent);
      // TODO: Move validation into QC page

      // if (errors.length > 0) {
      //   alert(`未完成品檢: ${errors.map((err) => err[1].message)}`);
      //   return;
      // }

      // Get QC data from the shared form context
      const qcAccept = data.qcDecision == 1;
      // const qcAccept = data.qcAccept;
      let acceptQty = Number(data.acceptQty);
      const qcResults = data.qcResult?.filter((qc) => qc.escalationLogId === undefined) || []; // Remove old QC data
      // const qcResults = data.qcResult as PurchaseQcResult[]; // qcItems;
      // const qcResults = viewOnly? data.qcResult as PurchaseQcResult[] : qcItems;
      
      // Validate QC data
      const validationErrors : string[] = [];
      

      // Check if failed items have failed quantity
      const failedItemsWithoutQty = qcResults.filter(item => 
        item.qcPassed === false && (!item.failQty || item.failQty <= 0)
      );
      if (failedItemsWithoutQty.length > 0) {
        validationErrors.push(`${t("Failed items must have failed quantity")}`);
        // validationErrors.push(`${t("Failed items must have failed quantity")}: ${failedItemsWithoutQty.map(item => item.code).join(', ')}`);
      }

      // Check if QC accept decision is made
      if (data.qcDecision === undefined) {
      // if (qcAccept === undefined) {
        validationErrors.push(t("QC decision is required"));
      }

      // Check if accept quantity is valid
      if (data.qcDecision == 2) {
        acceptQty = 0;
      } else {
        if (acceptQty === undefined || acceptQty <= 0) {
          validationErrors.push("Accept quantity must be greater than 0");
        }
      }
      // Check if dates are input
      if (data.productionDate === undefined || data.productionDate == null) {
        alert("請輸入生產日期！");
        return;
      }
      if (data.expiryDate === undefined || data.expiryDate == null) {
        alert("請輸入到期日！");
        return;
      }
      if (!qcResults.every((qc) => qc.qcPassed) && qcAccept  && stockInLineInfo?.status != "escalated") {  //TODO: fix it please!
        validationErrors.push("有不合格檢查項目，無法收貨！");
        // submitDialogWithWarning(() => postStockInLineWithQc(qcData), t, {title:"有不合格檢查項目，確認接受收貨？",
        //   confirmButtonText: t("confirm putaway"), html: ""});
        // return;
      }

      // Check if all QC items have results
      const itemsWithoutResult = qcResults.filter(item => item.qcPassed === undefined);
      
      if (itemsWithoutResult.length > 0  && stockInLineInfo?.status != "escalated") {  //TODO: fix it please!
        validationErrors.push(`${t("QC items without result")}`);
        // validationErrors.push(`${t("QC items without result")}: ${itemsWithoutResult.map(item => item.code).join(', ')}`);
      }

      if (validationErrors.length > 0) {
        console.error("QC Validation failed:", validationErrors);
        alert(`未完成品檢: ${validationErrors}`); 
        return;
      }

      const qcData = {
        dnNo : data.dnNo? data.dnNo : "DN00000",
        // dnDate : data.dnDate? arrayToDateString(data.dnDate, "input") : dayjsToInputDateString(dayjs()),
        productionDate : arrayToDateString(data.productionDate, "input"),
        expiryDate : arrayToDateString(data.expiryDate, "input"),
        receiptDate : arrayToDateString(data.receiptDate, "input"),
        
        qcAccept: qcAccept? qcAccept : false,
        acceptQty: acceptQty? acceptQty : 0,
        // qcResult: itemDetail.status != "escalated" ? qcResults.map(item => ({
        qcResult: qcResults.map(item => ({
          // id: item.id,
          qcItemId: item.qcItemId,
          // code: item.code,
          // qcDescription: item.qcDescription,
          qcPassed: item.qcPassed? item.qcPassed : false,
          failQty: (item.failQty && !item.qcPassed) ? item.failQty : 0,
          // failedQty: (typeof item.failedQty === "number" && !item.isPassed) ? item.failedQty : 0,
          remarks: item.remarks || '',
        })),
      };
      // const qcData = data;

      console.log("QC Data for submission:", qcData);
      if (data.qcDecision == 3) { // Escalate
        if (data.escalationLog?.handlerId == undefined) { alert("請選擇上報負責同事！"); return; }
        else if (data.escalationLog?.handlerId < 1) { alert("上報負責同事資料有誤"); return; }
        
        const escalationLog = {
          type : "qc",
          status : "pending", // TODO: update with supervisor decision
          reason : data.escalationLog?.reason,
          recordDate : dayjsToInputDateString(dayjs()),
          handlerId : data.escalationLog?.handlerId,
        }
        console.log("Escalation Data for submission", escalationLog);
        await postStockInLine({...qcData, escalationLog});

      } else {
        await postStockInLine(qcData);
      }

      if (qcData.qcAccept) {
        // submitDialogWithWarning(onOpenPutaway, t, {title:"Save success, confirm to proceed?",
        //   confirmButtonText: t("confirm putaway"), html: ""});
        // onOpenPutaway();
        closeHandler({}, "backdropClick");
        // setTabIndex(1);  // Need to go Putaway tab?
      } else {
        closeHandler({}, "backdropClick");
      }
      msg("已更新來貨狀態");
      return ;

    },
    [onOpenPutaway, formProps.formState.errors],
  );

  const postStockInLine = useCallback(async (args: ModalFormInput) => {
    const submitData = {
      ...stockInLineInfo, ...args
    } as StockInLineEntry & ModalFormInput;
    console.log("Submitting", submitData);

    const res = await updateStockInLine(submitData);
    return res;
  }, [stockInLineInfo])

  // Put away model
  const [pafRowModesModel, setPafRowModesModel] = useState<GridRowModesModel>({})
  const [pafRowSelectionModel, setPafRowSelectionModel] = useState<GridRowSelectionModel>([])
  const pafSubmitDisable = useMemo(() => {
    return Object.entries(pafRowModesModel).length > 0 || Object.entries(pafRowModesModel).some(([key, value], index) => value.mode === GridRowModes.Edit)
  }, [pafRowModesModel])
  // Putaway submission handler
  const onSubmitPutaway = useCallback<SubmitHandler<ModalFormInput>>(
    async (data, event) => {
      // Extract only putaway related fields
      const putawayData = {
        acceptQty: Number(data.acceptQty?? (stockInLineInfo?.demandQty?? (stockInLineInfo?.acceptedQty))),  //TODO improve
        warehouseId: data.warehouseId,
        status: data.status, //TODO Fix it!
        // ...data,
        
        // dnDate : data.dnDate? arrayToDateString(data.dnDate, "input") : dayjsToInputDateString(dayjs()),
        productionDate : arrayToDateString(data.productionDate, "input"),
        expiryDate : arrayToDateString(data.expiryDate, "input"),
        receiptDate : arrayToDateString(data.receiptDate, "input"),

        // for putaway data
        inventoryLotLines: data.putAwayLines?.filter((line) => line._isNew !== false)

        // Add other putaway specific fields
      } as ModalFormInput;
      console.log("Putaway Data:", putawayData);

      console.log("DEBUG",data.putAwayLines);
      // if (data.putAwayLines!!.filter((line) => line._isNew !== false).length <= 0) { 
      //   alert("請新增上架資料！");
      //   return;
      //  }
      if (data.putAwayLines!!.filter((line) => /[^0-9]/.test(String(line.qty))).length > 0) {  //TODO Improve
        alert("上架數量不正確！");
        return;
      }
      if (data.putAwayLines!!.reduce((acc, cur) => acc + Number(cur.qty), 0) > putawayData.acceptQty!!) {
        alert(`上架數量不能大於 ${putawayData.acceptQty}！`);
        return;
      }
      // Handle putaway submission logic here
      const res = await postStockInLine(putawayData);
      console.log("result ", res);
      
      // Close modal after successful putaway
      closeHandler({}, "backdropClick");
    },
    [closeHandler],
  );
  // Print handler
  const [isPrinting, setIsPrinting] = useState(false)
  const handlePrint = useCallback(async () => {
    // console.log("Print putaway documents");
    console.log("%c data", "background: white; color: red", formProps.watch("putAwayLines"));
    // Handle print logic here
    // window.print();
    // const postData = { stockInLineIds: [itemDetail.id]};
    // const response = await fetchPoQrcode(postData);
    // if (response) {
    //   downloadFile(new Uint8Array(response.blobValue), response.filename)
    // }
    try {
      setIsPrinting(() => true)
      if ((formProps.watch("putAwayLines") ?? []).filter((line) => /[^0-9]/.test(String(line.printQty))).length > 0) {  //TODO Improve
        alert("列印數量不正確！");
        return;
      }
      // console.log(pafRowSelectionModel)
      const printList = formProps.watch("putAwayLines")?.filter((line) => ((pafRowSelectionModel ?? []).some((model) => model === line.id))) ?? []
      // const printQty = printList.reduce((acc, cur) => acc + cur.printQty, 0)
      // console.log(printQty)
      const data: PrintQrCodeForSilRequest = {
        stockInLineId: stockInLineInfo?.id ?? 0,
        printerId: selectedPrinter.id,
        printQty: printQty
      }
      const response = await printQrCodeForSil(data);
      if (response) {
        console.log(response)
      }
    } finally {
      setIsPrinting(() => false)
    }
  // }, [pafRowSelectionModel, printQty, selectedPrinter]);
  }, [stockInLineInfo?.id, pafRowSelectionModel, printQty, selectedPrinter]);
  
  const acceptQty = formProps.watch("acceptedQty")

  // const checkQcIsPassed = useCallback((qcItems: PurchaseQcResult[]) => {
  //   const isPassed = qcItems.every((qc) => qc.qcPassed);
  //   console.log(isPassed)
  //   if (isPassed) {
  //       formProps.setValue("passingQty", acceptQty)
  //   } else {
  //       formProps.setValue("passingQty", 0)
  //   }
  //   return isPassed
  // }, [acceptQty, formProps])

  return (
    <>
      <FormProvider {...formProps}>
        <Modal open={open} onClose={closeHandler}>
          <Box
            sx={{
              ...style,
              // padding: 2,
              maxHeight: "90vh",
              overflowY: "auto",
              marginLeft: 3,
              marginRight: 3,
              // overflow: "hidden",
              display: 'flex',
              flexDirection: 'column',
            }}
          >
          {(!isLoading && stockInLineInfo) ? (<>
            <Box sx={{ position: 'sticky', top: 0, bgcolor: 'background.paper',
              zIndex: 5, borderBottom: 2, borderColor: 'divider', width: "100%"}}>
              <Tabs
                value={tabIndex}
                onChange={handleTabChange}
                variant="scrollable"
                sx={{pl: 2, pr: 2, pt: 2}}
              >
                <Tab label={
                  showPutaway ? t("dn and qc info") : t("qc processing")
                } iconPosition="end" />
                {showPutaway && <Tab label={t("putaway processing")} iconPosition="end" />}
              </Tabs>
            </Box>
            <Grid
              container
              justifyContent="flex-start"
              alignItems="flex-start"
              sx={{padding: 2}}
            >
              <Grid item xs={12}>
              {tabIndex === 0 && 
                <Box>
                  <Grid item xs={12}>
                    <Typography variant="h6" display="block" marginBlockEnd={1}>
                      {t("Delivery Detail")}
                    </Typography>
                  </Grid>
                  <StockInForm itemDetail={stockInLineInfo} disabled={viewOnly || showPutaway} />
                  {stockInLineInfo.qcResult ?
                    <QcComponent
                      itemDetail={stockInLineInfo}
                      disabled={viewOnly || showPutaway}
                    /> : <LoadingComponent/>
                  }
                  <Stack direction="row" justifyContent="flex-end" gap={1} sx={{pt:2}}>
                    {(!viewOnly && !showPutaway) && (<Button
                      id="Submit"
                      type="button"
                      variant="contained"
                      color="primary"
                      sx={{ mt: 1 }}
                      onClick={formProps.handleSubmit(onSubmitQc, onSubmitErrorQc)}
                    >
                      {t("confirm qc result")}
                    </Button>)}
                  </Stack>
                </Box>
              }

              {tabIndex === 1 &&
                <Box>
                  <PutAwayForm
                    itemDetail={stockInLineInfo}
                    warehouse={warehouse!}
                    disabled={viewOnly}
                    setRowModesModel={setPafRowModesModel}
                    setRowSelectionModel={setPafRowSelectionModel}
                  />
                </Box>
                }
              </Grid>
            </Grid>
            
            {tabIndex == 1 && (
              <Stack direction="row" justifyContent="flex-end" gap={1} sx={{m:3, mt:"auto"}}>
                <Autocomplete
                  disableClearable
                  options={printerCombo}
                  defaultValue={selectedPrinter}
                  onChange={(event, value) => {
                    setSelectedPrinter(value)
                  }}
                  renderInput={(params) => (
                    <TextField
                      {...params}
                      variant="outlined"
                      label={t("Printer")}
                      sx={{ width: 300}}
                    />
                  )}
                />
                <TextField
                  variant="outlined"
                  label={t("Print Qty")}
                  defaultValue={printQty}
                  onChange={(event) => {
                    event.target.value = event.target.value.replace(/[^0-9]/g, '')

                    setPrintQty(Number(event.target.value))
                  }}
                  sx={{ width: 300}}
                />
                <Button
                  id="printButton"
                  type="button"
                  variant="contained"
                  color="primary"
                  sx={{ mt: 1 }}
                  onClick={handlePrint}
                  disabled={isPrinting || printerCombo.length <= 0 || pafSubmitDisable}
                >
                  {isPrinting ? t("Printing") : t("print")}
                </Button>
              </Stack>
            )}
          </>) : <LoadingComponent/>}
          </Box>
        </Modal>
      </FormProvider>
    </>
  );
};
export default PoQcStockInModalVer2;