"use client";

import { useWrStore } from "@/app/store";
import type { RainStatProps } from "@/app/store/stats/rainStat";
import { excelDownload, tableData, yearOptions } from "@/components/lib/func/commom";
import { downloadExcel } from "@common/business_components";

import {
  ContentsDiv,
  ScrollArea,
  SearchDiv,
  SelectBox,
  Title,
  UiTable
} from "@common/business_components/ui";
import ListDiv from "@common/business_components/ui/list_div";
import { Button } from "@common/components/ui";
import { useEffect, useState } from "react";

export default function RainStat() {
  const { code, rainStat, searchRainStatList } = useWrStore((state) => state);
  const { rainStatList, excelList, rainDetailList } = rainStat;

  const [searchYear, setSearchYear] = useState<string>(
    String(new Date().getFullYear())
  );
  const [exData, setExData] = useState<Array<Record<string, string | number>>>();
  const [bdstTable, setBdstTable] = useState<RainStatProps[]>();

  useEffect(() => {
    searchRainStatList(searchYear);
  }, [code.cityCd, code.sggCd, searchRainStatList])

  const excelDetailDownLoad=() =>{
    const sidoList = new Set<string>();
    const sidoDataMap = new Map<string, (string | number)[]>(); // 시도별 데이터를 저장할 Map
    const sidoDetailMap = new Map<string, (string | number)[][]>(); // 시도별 상세 데이터를 저장할 Map

    // 먼저 시도별 상세 데이터를 그룹화
    rainDetailList.forEach((item: RainStatProps[]) => {
      const sidoVal = item.at(0)?.toString().trim();
      const sigunVal = item.at(1)?.toString().trim();

      let sidoText = '';
      let sigunText = '';

      const sido = code.cityCd.find((city) => city.val === sidoVal);
      const sigun = code.sggCd.find((sgg) => sgg.val === sigunVal);

      sidoText = sido?.text || '';
      sigunText = sigun?.text || '';
      
      // 시도, 시군구 코드를 텍스트로 변환하여 데이터에 할당
      if (item.length > 0) {
        item[0] = sidoText as unknown as RainStatProps;
      }
      if (item.length > 1) {
        item[1] = sigunText as unknown as RainStatProps;
      }
      if (item.length > 2) {
        item[2] = sidoText+' '+sigunText as unknown as RainStatProps;
      }

      // 시도별 상세 데이터 수집
      if (sidoText) {
        if (!sidoDetailMap.has(sidoText)) {
          sidoDetailMap.set(sidoText, []);
        }
        sidoDetailMap.get(sidoText)!.push(item as unknown as (string | number)[]);
      }

      // 시도별 합계 데이터 수집
      if (sidoText && !sidoList.has(sidoText)) {
        sidoList.add(sidoText);
        // 시도별 초기 데이터 구조 생성 (예: [시도명, 0, 0, 0, ...])
        const initialData: (string | number)[] = [sidoText];
        // 데이터의 나머지 컬럼들을 0으로 초기화 (실제 컬럼 수에 맞게 조정 필요)
        for (let i = 1; i < item.length; i++) {
          initialData.push(0);
        }
        sidoDataMap.set(sidoText, initialData);
      }
    });

    // 시도별 합계 계산
    rainDetailList.forEach((item: RainStatProps[]) => {
      const sidoText = item[0]?.toString();
      if (sidoText && sidoDataMap.has(sidoText)) {
        const sidoData = sidoDataMap.get(sidoText)!;
        // 각 컬럼의 값을 합계에 더하기 (1번 인덱스부터 시작)
        for (let i = 1; i < item.length && i < sidoData.length; i++) {
          if(i == 2){
            sidoData[i] = '합계';
          } else if(i == 3){
            // 해당 시도의 데이터 개수를 계산
            const sidoDataCount = rainDetailList.filter((data: unknown[]) => 
              Array.isArray(data) && data.length > 0 && String(data[0]) === sidoText
            ).length;
            sidoData[i] = sidoDataCount;
          } else if( i == 4){
            sidoData[i] = '';
          } else if(i == 6){
            // 법정 대상 건축물 개수 (인덱스 6이 'Y'인 경우)
            const bumCnt = rainDetailList.filter((data: unknown[]) => 
              Array.isArray(data) && data.length > 6 && String(data[0]) === sidoText
            ).filter((data: unknown[]) => String(data[6]) === '대상').length;
            sidoData[i] = bumCnt;
          } else if(i==8){
            const value = Number(item[8]) || 0;
            sidoData[i] = (Number(sidoData[i]) + value) as string | number;
          } else if(i==11){
            const value = Number(item[11]) || 0;
            sidoData[i] = (Number(sidoData[i]) + value) as string | number;
          } else if(i==12){
            const value = Number(item[12]) || 0;
            sidoData[i] = (Number(sidoData[i]) + value) as string | number;
          } else if(i==14){
            const value = Number(item[14]) || 0;
            sidoData[i] = (Number(sidoData[i]) + value) as string | number;
          }
          else {
            sidoData[i] = '';
          }
        }
      }
    });

    // 시도별로 합계와 상세 데이터를 순서대로 배치
    const summaryExcelData: (string | number)[][] = [];
    
    // 시도별로 순회하면서 합계와 상세 데이터를 추가
    Array.from(sidoList).forEach((sidoText) => {
      const sidoSummary = sidoDataMap.get(sidoText);
      const sidoDetails = sidoDetailMap.get(sidoText) || [];
      
      if (sidoSummary) {
        // 시도 합계 데이터 추가
        summaryExcelData.push(sidoSummary);
        // 해당 시도의 상세 데이터들 추가
        sidoDetails.forEach(detail => {
          summaryExcelData.push(detail);
        });
      }
    });

    const sidoSummaryList = Array.from(sidoDataMap.values());
    const sidoTotalSummary = [['전체', '', '합계', 0, '', '', 0, '', '', 0, 0, 0, 0, 0, 0, '', 0]];
    sidoSummaryList.forEach((item: (string | number)[]) => {
      item.forEach((value: string | number, index: number) => {
        if(typeof value === 'number') {
          if (sidoTotalSummary[0] && index < sidoTotalSummary[0].length) {
            sidoTotalSummary[0][index] = Number(sidoTotalSummary[0][index]) + Number(value);
          }
        }
      });
    });
    
    // sidoSummaryList와 rainDetailList를 합쳐서 엑셀 데이터 생성
    const excelData = [...sidoTotalSummary, ...sidoSummaryList, ...summaryExcelData];

    excelDownload(
      excelData as unknown as [][],
      "빗물이용시설 통계",
      "sample_rainStats.xlsx",
      "A1:V3",
      4
    );
  }

  const excelClick = () => {
    downloadExcel({
      data: (exData as unknown as JSON[]) ?? [],
      fileName: "재이용통계",
      sheetNameArray: ["Sheet1"],
      headerRange: "A1:M1"
    })
  }
  
  useEffect(() => {
    const transExcel = Array.isArray(excelList) ? excelList : [excelList];
    const excelData = tableData(transExcel, { code });
    const tbData = Array.isArray(excelData)
      ? excelData.map((item: RainStatProps) => {
        return {
          "시도": item.cityText,
          "개소": item.tmp,
          "설치비(백만원)": item.instlCst,
          "저류조용량(m³/년)": item.dtfcltCpct,
          "연간사용량(m³/년)": item.wtrUsqty,
          "조경용수": item.lndwtr,
          "청소화장실용수": item.cleanToilUswtr,
          "세척살수용수": item.resn,
          "농업용수": item.farmUswtr,
          "공업용수": item.indstUswtr,
          "친수용수": item.hydUswtr,
          "기타": item.ithlEtcUswtr,
          "연간운영비(백만원/년)": item.anlOperCst,
        };
      })
      : [];
    setExData(tbData);
  }, [code, excelList])

  useEffect(() => {
    const transData = Array.isArray(rainStatList) ? rainStatList : [rainStatList];
    const data = tableData(transData, { code });
    const tbData = Array.isArray(data)
      ? data.map((item: RainStatProps) => {
        return {
          ...item,
          ctpvCd: item.cityText
        };
      }).filter((item: RainStatProps) => item.cityText !== '없음')
      : [];

    setBdstTable(tbData);
  }, [code, rainStatList]);

  return (
    <>
      <ContentsDiv>
        <div className="grid grid-cols-4 gap-4">
          <div className="col-span-4">
            <Title title={"빗물이용시설 통계"} />
            <SearchDiv>
              <div className="grid grid-cols-12 gap-5 m-4">
                <div className="col-span-2">
                  <SelectBox
                    className="w-full h-full text-2xl"
                    label="통계년도"
                    selectClass={""}
                    selectArray={yearOptions}
                    value={searchYear}
                    onSelectValue={(val: string | number) =>
                      setSearchYear(String(val))
                    }
                  />
                </div>
                <div className="flex flex-row space-x-2 items-center">
                  <Button className="" size={"sm"} onClick={()=>{searchRainStatList(searchYear);}}>
                    조회
                  </Button>
                  <Button className="" size={"sm"} onClick={() => excelClick()}>
                    다운로드
                  </Button>
                  <Button className="" size={"sm"} onClick={() => excelDetailDownLoad()}>
                    전체통계다운로드
                  </Button>
                </div>
              </div>
            </SearchDiv>
            {/* <SearchFormRight>
              </SearchFormRight> */}
          </div>
        </div>
        <div className="grid grid-cols-6 gap-4">
          <div className="col-span-6 h-full min-h-0">
            <ListDiv className="">
              <ScrollArea className="h-[67vh]">
                <UiTable
                  tableData={bdstTable || []}
                  headlist={rainStat.rainStatHeadList}
                  pageSize={10}
                  total={0}
                  headName={""}
                  cellClick={undefined}
                  onPageChange={() => {}}
                ></UiTable>
              </ScrollArea>
            </ListDiv>
          </div>
        </div>
      </ContentsDiv>
    </>
  );
}