import { formatCurrency } from "@/utils";
import { useEffect, useState } from "react";
import { Table } from "@nutui/nutui-react-taro";
import { Icon } from "@/components";
import { View } from "@tarojs/components";
import { Decimal } from "decimal.js";

export default function PackageInfoSection(props: {
  orderVO: BusinessAPI.OrderVO;
  onChange?: (orderVO: BusinessAPI.OrderVO) => void;
  readOnly?: boolean;
}) {
  const { orderVO, readOnly } = props;

  const defaultColumns = [
    {
      title: "纸箱型号",
      key: "boxProductName",
      fixed: "left",
    },
    {
      title: "个数",
      key: "boxProductCount",
    },
    ...(orderVO.type === "PRODUCTION_PURCHASE"
      ? [
          {
            title: "销售单价（元/斤）",
            key: "boxSalePrice",
            render: (
              value: BusinessAPI.OrderPackage & {
                orderPackageId?: string;
                isTotalRow?: boolean;
              },
            ) => {
              // 合计行不显示编辑按钮
              if (value.isTotalRow) {
                return formatCurrency(value.boxSalePrice as number);
              }

              return (
                <View
                  className="flex w-full items-center justify-between"
                  onClick={(e) => {
                    if (!readOnly) {
                      e.stopPropagation();
                    }
                  }}
                >
                  <View className={!readOnly ? "cursor-pointer underline" : ""}>
                    {formatCurrency(value.boxSalePrice as number)}
                  </View>
                  {!readOnly && (
                    <View className="-m-2 ml-2 flex items-center justify-center p-2">
                      <Icon
                        name={"pen-to-square"}
                        size={16}
                        color={"#1a73e8"}
                      />
                    </View>
                  )}
                </View>
              );
            },
          },
          {
            title: "销售金额（元）",
            key: "boxSalePayment",
          },
        ]
      : []),
    {
      title: "箱重（斤）",
      key: "boxProductWeight",
      render: (
        value: BusinessAPI.OrderPackage & {
          orderPackageId?: string;
          isTotalRow?: boolean;
        },
      ) => formatCurrency(value.boxProductWeight),
    },
    {
      title: "品牌",
      key: "boxBrandName",
    },
  ];
  const [columns, setColumns] = useState<any[]>(defaultColumns);

  useEffect(() => {
    if (!readOnly) {
      setColumns([...defaultColumns]);
    }
  }, [readOnly]);

  // 将所有包装信息合并并按品牌、型号、规格分组
  const groupedPackageData = orderVO.orderSupplierList?.reduce(
    (acc, supplier) => {
      supplier.orderPackageList
        ?.filter((pkg) => pkg.boxType === "USED")
        ?.forEach((pkg) => {
          // 生成分组键
          const key = `${pkg.boxBrandName}-${pkg.boxProductName}-${pkg.boxSpecId}`;

          // 转换规格字段
          const boxSpecId = pkg.boxSpecId;
          const boxSpecName = pkg.boxSpecName;

          if (!acc[key]) {
            acc[key] = {
              ...pkg,
              boxSpecId,
              boxSpecName,
              boxProductCount: 0,
            };
          }

          // 累加数量
          acc[key].boxProductCount += pkg.boxCount || 0;
        });

      return acc;
    },
    {} as Record<string, any>,
  );

  // 转换为数组格式
  const packageData = Object.values(groupedPackageData || {});

  // 计算合计数据
  const calculateTotals = () => {
    if (!packageData || packageData.length === 0) {
      return {};
    }

    // 计算各项合计
    let totalBoxProductCount = new Decimal(0);
    let totalBoxSalePayment = new Decimal(0);
    let totalBoxProductWeight = new Decimal(0);

    packageData.forEach((pkg: any) => {
      totalBoxProductCount = totalBoxProductCount.add(pkg.boxProductCount || 0);
      totalBoxSalePayment = totalBoxSalePayment.add(
        new Decimal(pkg?.boxSalePrice || 0)
          .mul(pkg.boxProductCount || 0)
          .toDecimalPlaces(0, Decimal.ROUND_HALF_UP),
      );
      totalBoxProductWeight = totalBoxProductWeight.add(
        new Decimal(pkg?.boxProductWeight || 0)
          .mul(pkg.boxProductCount || 0)
          .toDecimalPlaces(0, Decimal.ROUND_HALF_UP),
      );
    });

    return {
      boxProductName: "合计",
      boxProductCount: totalBoxProductCount.toNumber(),
      boxSalePayment: totalBoxSalePayment.toNumber(),
      boxProductWeight: totalBoxProductWeight.toNumber(),
      isTotalRow: true, // 标记这是合计行
    };
  };

  const totalsData = calculateTotals();

  // 创建包含合计行的数据
  const dataWithTotals = [...packageData];
  if (Object.keys(totalsData).length > 0) {
    dataWithTotals.push(totalsData);
  }

  // 自定义列配置，对合计行特殊处理
  const columnsWithTotalsRender = columns.map((column) => {
    if (column.key === "boxProductName") {
      // 品牌列显示"合计"
      return {
        ...column,
        render: (rowData: any) => {
          if (rowData.isTotalRow) {
            return (
              <span style={{ fontWeight: "bold" }}>
                {rowData.boxProductName}
              </span>
            );
          }
          return rowData.boxProductName;
        },
      };
    } else if (column.key === "boxProductCount") {
      // 个数列显示合计
      return {
        ...column,
        render: (rowData: any) => {
          if (rowData.isTotalRow) {
            return (
              <span style={{ fontWeight: "bold" }}>
                {rowData.boxProductCount}
              </span>
            );
          }
          return rowData.boxProductCount;
        },
      };
    } else if (column.key === "boxSalePrice") {
      // 销售单价列合计行处理
      return {
        ...column,
        render: (rowData: any) => {
          if (rowData.isTotalRow) {
            return (
              <span style={{ fontWeight: "bold" }}>
                {formatCurrency(rowData.boxSalePrice as number)}
              </span>
            );
          }
          return column.render(rowData, rowData);
        },
      };
    } else if (column.key === "boxSalePayment") {
      // 销售金额列显示合计
      return {
        ...column,
        render: (rowData: any) => {
          if (rowData.isTotalRow) {
            return (
              <span style={{ fontWeight: "bold" }}>
                {formatCurrency(rowData.boxSalePayment)}
              </span>
            );
          }
          return new Decimal(rowData?.boxSalePrice || 0)
            .mul(rowData.boxProductCount)
            .toDecimalPlaces(0, Decimal.ROUND_HALF_UP)
            .toNumber();
        },
      };
    } else if (column.key === "boxProductWeight") {
      // 重量列合计行处理
      return {
        ...column,
        render: (rowData: any) => {
          if (rowData.isTotalRow) {
            return (
              <span style={{ fontWeight: "bold" }}>
                {formatCurrency(rowData.boxProductWeight)}
              </span>
            );
          }
          return column.render(rowData, rowData);
        },
      };
    }

    // 其他列保持原有render函数或者默认显示
    return column;
  });

  return (
    <Table
      className={"table-sum"}
      columns={columnsWithTotalsRender}
      data={dataWithTotals}
      striped
    />
  );
}