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

export default function EmptyBoxInfoSection(props: {
  purchaseOrderVO: BusinessAPI.PurchaseOrderVO;
  onChange?: (purchaseOrderVO: BusinessAPI.PurchaseOrderVO) => void;
  readOnly?: boolean;
}) {
  const { purchaseOrderVO, onChange, readOnly } = props;

  const defaultColumns = [
    {
      title: "纸箱型号",
      key: "boxProductName",
      fixed: "left",
    },
    {
      title: "个数",
      key: "boxProductCount",
    },
    {
      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();
                // 设置临时编辑值为当前值
                setTempEditValues((prev) => ({
                  ...prev,
                  [value.orderPackageId || ""]:
                    editValues[value.orderPackageId || ""],
                }));
                setVisiblePopup((prev) => ({
                  ...prev,
                  [value.orderPackageId || ""]: true,
                }));
              }
            }}
          >
            <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",
      render: (
        value: BusinessAPI.OrderPackage & {
          boxProductCount: number;
          isTotalRow?: boolean;
        },
      ) =>
        formatCurrency(
          Number((value?.boxSalePrice || 0) * value.boxProductCount) as number,
        ),
    },
    {
      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]);

  // 弹窗可见状态
  const [visiblePopup, setVisiblePopup] = useState<{ [key: string]: boolean }>(
    {},
  );

  // 编辑值的状态
  const [editValues, setEditValues] = useState<{
    [key: string]: {
      boxSalePrice?: number;
    };
  }>({});

  // 临时编辑值的状态（用于在保存前暂存编辑的值）
  const [tempEditValues, setTempEditValues] = useState<{
    [key: string]: {
      boxSalePrice?: number;
    };
  }>({});

  // 初始化编辑值
  const initEditValues = (pkgId: string, boxSalePrice?: number) => {
    const updates: {
      editValuesUpdate?: {
        boxSalePrice?: number;
      };
      tempEditValuesUpdate?: {
        boxSalePrice?: number;
      };
    } = {};

    if (!editValues[pkgId]) {
      updates.editValuesUpdate = {
        boxSalePrice,
      };
    }

    // 同时初始化临时编辑值
    if (!tempEditValues[pkgId]) {
      updates.tempEditValuesUpdate = {
        boxSalePrice,
      };
    }

    return updates;
  };

  // 将所有包装信息合并并按品牌、型号、规格分组
  const groupedPackageData = purchaseOrderVO.orderPackageList?.reduce(
    (acc, orderPackage) => {
      // 生成分组键
      const key = `${orderPackage.boxBrandName}-${orderPackage.boxProductName}-${orderPackage.boxSpecId}`;

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

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

      // 累加数量
      acc[key].boxProductCount += orderPackage.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 = 0;
    let totalBoxSalePayment = 0;
    let totalBoxProductWeight = 0;

    packageData.forEach((pkg: any) => {
      totalBoxProductCount += pkg.boxProductCount || 0;
      totalBoxSalePayment +=
        Number((pkg?.boxSalePrice || 0) * pkg.boxProductCount) || 0;
      totalBoxProductWeight +=
        Number((pkg?.boxProductWeight || 0) * pkg.boxProductCount) || 0;
    });

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

  const totalsData = calculateTotals();

  // 初始化所有包装项的编辑值
  useEffect(() => {
    const newEditValues = { ...editValues };
    const newTempEditValues = { ...tempEditValues };
    let hasEditValuesChanged = false;
    let hasTempEditValuesChanged = false;

    packageData.forEach((pkg: BusinessAPI.OrderPackage) => {
      const pkgId = pkg.orderPackageId || "";
      const updates = initEditValues(pkgId, pkg.boxSalePrice);

      if (updates.editValuesUpdate) {
        newEditValues[pkgId] = updates.editValuesUpdate;
        hasEditValuesChanged = true;
      }

      if (updates.tempEditValuesUpdate) {
        newTempEditValues[pkgId] = updates.tempEditValuesUpdate;
        hasTempEditValuesChanged = true;
      }
    });

    if (hasEditValuesChanged) {
      setEditValues(newEditValues);
    }

    if (hasTempEditValuesChanged) {
      setTempEditValues(newTempEditValues);
    }
  }, [packageData]);

  // 当editValues发生变化时，更新purchaseOrderVO
  useEffect(() => {
    // 只有当onChange存在时才更新
    if (onChange) {
      // 创建新的purchaseOrderVO对象
      const newPurchaseOrderVO = { ...purchaseOrderVO };

      // 更新供应商列表中的包装信息
      if (newPurchaseOrderVO.orderPackageList) {
        newPurchaseOrderVO.orderPackageList =
          newPurchaseOrderVO.orderPackageList.map((pkg) => {
            const editValue = editValues[pkg.orderPackageId || ""];
            if (editValue) {
              return {
                ...pkg,
                boxSalePrice:
                  editValue.boxSalePrice !== undefined
                    ? editValue.boxSalePrice
                    : pkg.boxSalePrice,
              };
            }
            return pkg;
          });
      }

      // 调用onChange回调
      onChange(newPurchaseOrderVO);
    }
  }, [editValues]);

  // 自定义合计行渲染
  const renderTableWithTotals = () => {
    // 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
      />
    );
  };

  return (
    <>
      {renderTableWithTotals()}

      {/* 纸箱价格编辑弹窗 */}
      {packageData.map((pkg: BusinessAPI.OrderPackage) => (
        <Popup
          duration={150}
          style={{
            minHeight: "auto",
          }}
          key={pkg.orderPackageId}
          visible={visiblePopup[pkg.orderPackageId || ""]}
          position="bottom"
          title="编辑纸箱信息"
          onClose={() =>
            setVisiblePopup((prev) => ({
              ...prev,
              [pkg.orderPackageId || ""]: false,
            }))
          }
          onOverlayClick={() =>
            setVisiblePopup((prev) => ({
              ...prev,
              [pkg.orderPackageId || ""]: false,
            }))
          }
          lockScroll
        >
          <View className="flex flex-col gap-3 p-2.5">
            <View className="text-neutral-darkest flex flex-row text-sm font-medium">
              <Icon name="money-bill" size={16} className="mr-1" />
              销售单价
            </View>
            <View className="border-neutral-base flex flex-row items-center rounded-md border border-solid">
              <Input
                className="placeholder:text-neutral-dark"
                placeholder="请输入销售单价"
                type="digit"
                value={
                  tempEditValues[
                    pkg.orderPackageId || ""
                  ]?.boxSalePrice?.toString() || ""
                }
                onChange={(value) => {
                  const numValue = validatePrice(value);
                  if (numValue !== undefined) {
                    setTempEditValues((prev) => ({
                      ...prev,
                      [pkg.orderPackageId || ""]: {
                        ...prev[pkg.orderPackageId || ""],
                        boxSalePrice: numValue as number,
                      },
                    }));
                  }
                }}
              />
              <View className="mr-2">元</View>
            </View>
          </View>
          <View className="flex w-full flex-col bg-white">
            <View className="flex flex-row gap-2 p-3">
              <View className="flex-1">
                <Button
                  size="large"
                  block
                  type="default"
                  onClick={() =>
                    setVisiblePopup((prev) => ({
                      ...prev,
                      [pkg.orderPackageId || ""]: false,
                    }))
                  }
                >
                  取消
                </Button>
              </View>
              <View className="flex-1">
                <Button
                  size="large"
                  block
                  type="primary"
                  onClick={() => {
                    // 保存时才更新editValues状态
                    setEditValues((prev) => ({
                      ...prev,
                      [pkg.orderPackageId || ""]: {
                        ...tempEditValues[pkg.orderPackageId || ""],
                      },
                    }));

                    // 关闭弹窗
                    setVisiblePopup((prev) => ({
                      ...prev,
                      [pkg.orderPackageId || ""]: false,
                    }));
                  }}
                >
                  保存
                </Button>
              </View>
            </View>
          </View>
          <SafeArea position="bottom" />
        </Popup>
      ))}
    </>
  );
}
