import hocAuth from "@/hocs/auth";
import { CommonComponent } from "@/types/typings";
import { useEffect, useRef, useState } from "react";
import { View } from "@tarojs/components";
import { Button, Dialog, SafeArea, Step, Steps } from "@nutui/nutui-react-taro";
import orderShip from "@/constant/orderShip";
import Taro from "@tarojs/taro";
import classNames from "classnames";
import { business, poster } from "@/services";
import {
  buildUrl,
  convertOrderShipVOToExamplesFormat,
  PdfTemplate,
} from "@/utils";
import {
  DeliveryStep1Form,
  DeliveryStep1FormRef,
  DeliveryStep2Preview,
  DeliveryStep3Success,
} from "@/components";
import dayjs from "dayjs";

// 特殊处理：其他费用要实时获取费用项目
const updateOtherFeesModule = async (
  module: any,
  orderVO: BusinessAPI.OrderVO,
) => {
  const {
    data: { data },
  } = await business.costItem.listCostItem({
    costItemListQry: {
      status: true,
    },
  });
  const costItems =
    data?.filter((item) => item.type !== "ARTIFICIAL_TYPE") || [];

  console.log("module", module);

  return {
    ...module,
    config: {
      ...module.config,
      feeItems: orderVO.orderCostList?.filter(
        (item) => item.type !== "ARTIFICIAL_TYPE",
      ),
      feeLabels: costItems.reduce((acc: any, item: any) => {
        acc[item.itemId] = item.name;
        return acc;
      }, {}),
    },
    schemas: [
      {
        title: "显示配置",
        valueType: "group",
        columns: [
          {
            dataIndex: "feeItems",
            title: "显示费用项目",
            valueType: "checkbox",
            valueEnum: costItems.reduce((acc: any, item: any) => {
              acc[item.itemId] = item.name;
              return acc;
            }, {}),
          },
        ],
      },
    ],
  };
};

export default hocAuth(function Page(props: CommonComponent) {
  const { router, setLoading } = props;
  const orderShipId = router.params
    .orderShipId as BusinessAPI.OrderShipVO["orderShipId"];
  const orderId = router.params.orderId as BusinessAPI.OrderShipVO["orderId"];

  const [step, setStep] = useState(1);
  const [moduleList, setModuleList] = useState<any[]>([]);
  const [orderVO, setOrderVO] = useState<BusinessAPI.OrderVO>();

  const [orderShipVO, setOrderShipVO] = useState<BusinessAPI.OrderShip>();
  const [deliveryTemplate, setDeliveryTemplate] = useState<string>();
  const [pdfUrl, setPdfUrl] = useState<string>();
  const [picUrl, setPicUrl] = useState<string>();

  const step1FormRef = useRef<DeliveryStep1FormRef>(null);

  const init = async (
    orderId: BusinessAPI.OrderShipVO["orderId"],
    orderShipId: BusinessAPI.OrderShipVO["orderShipId"],
  ) => {
    setLoading(true);
    const { data } = await business.order.showOrder({
      orderShowQry: {
        orderId,
        orderShipId,
      },
    });
    const orderVO = data.data;
    if (orderVO) {
      setOrderVO(orderVO);
      const orderShip = orderVO.orderShipList[0];
      setOrderShipVO(orderShip);
      if (orderShip.pdfUrl || orderShip.picUrl) {
        setStep(3);
        setPdfUrl(orderShip.pdfUrl);
        setPicUrl(orderShip.picUrl);
      }

      const { data } = await business.dealer.showDealer({
        dealerShowQry: {
          dealerId: orderShip?.dealerId,
        },
      });

      const deliveryTemplate = data.data?.deliveryTemplate!;
      setDeliveryTemplate(deliveryTemplate);
    }
    setLoading(false);
  };

  useEffect(() => {
    if (orderId && orderShipId) {
      init(orderId, orderShipId).then();
    }
  }, [orderId, orderShipId]);

  const refresh = async (
    deliveryTemplate: string,
    orderVO: BusinessAPI.OrderVO,
  ) => {
    const template = JSON.parse(deliveryTemplate);
    // 将 orderShipVO 转换为 examples 的数据格式，然后再替换 moduleList 里面的 config 数据
    const convertedData = convertOrderShipVOToExamplesFormat(orderVO);
    const updatedTemplate = await updateTemplateConfig(
      template,
      convertedData,
      orderVO,
    );
    setModuleList(updatedTemplate);
  };

  useEffect(() => {
    if (deliveryTemplate && orderVO) {
      refresh(deliveryTemplate, orderVO).then();
    }
  }, [orderVO, deliveryTemplate]);

  // 更新模板配置
  const updateTemplateConfig = async (
    template: any[],
    data: any,
    orderVO: BusinessAPI.OrderVO,
  ) => {
    let templateList: any[] = [];
    template.map(async (module: any) => {
      let newModule = { ...module };
      if (data[module.type]) {
        newModule.config = { ...module.config, ...data[module.type] };
      }
      // 特殊处理： otherFees 要更新为最新的数据
      if (module.type === "otherFees") {
        newModule = await updateOtherFeesModule(module, orderVO);
      }
      templateList.push(newModule);
    });

    return templateList;
  };

  // 预览确认
  const previewAndConfirm = () => {
    if (step === 2) {
      // 显示确认对话框
      Dialog.open("dialog", {
        title: "生成发货单据",
        content: "即将生成发货单据，请确认发货单据是否正确。",
        confirmText: "确认生成",
        cancelText: "取消",
        onConfirm: async () => {
          // 截图预览内容
          await capturePreview();
          Dialog.close("dialog");
          // 进入第三步
          setStep(3);
        },
        onCancel: () => {
          Dialog.close("dialog");
        },
      });
      return;
    }

    if (step === 1) {
      // 调用 Step1Form 的表单校验方法
      if (step1FormRef.current && step1FormRef.current.validateForm()) {
        setStep(2);
      }
      return;
    }

    if (step < 3) {
      setStep(step + 1);
    }
  };

  // 生成发货单据
  const generateShippingDocument = async () => {
    // 显示确认对话框
    Dialog.open("dialog", {
      title: "生成发货单据",
      content: "即将生成发货单据，请确认发货单据是否正确。",
      confirmText: "确认生成",
      cancelText: "取消",
      onConfirm: async () => {
        // 截图预览内容
        await capturePreview();
        Dialog.close("dialog");
        // 进入第三步
        setStep(3);
      },
      onCancel: () => {
        Dialog.close("dialog");
      },
    });
  };

  // 截图预览内容
  const capturePreview = async () => {
    const template = new PdfTemplate(moduleList);
    const {
      data: { data: pdfData },
    } = await poster.pdf.postApiV1Pdf({
      html: template.generateHtmlString(),
    });

    const {
      data: { data: picData },
    } = await poster.poster.postApiV1Poster({
      html: template.generateHtmlString(),
      //@ts-ignore
      format: "a4",
    });

    setPdfUrl(pdfData?.path);
    setPicUrl(picData?.path);

    const orderShip = orderVO?.orderShipList[0];
    // 存储 至 orderShip previewUrl
    if (orderShip) {
      let formData: BusinessAPI.OrderShipGenerateDocumentCmd = {
        orderShipId: orderShip?.orderShipId,
        pdfUrl: pdfData?.path as string,
        picUrl: picData?.path as string,
      };
      // 检查各模块中的必填字段是否已填写
      for (const module of moduleList) {
        const contentSchema = module.schemas.find(
          (schema) => schema.title === "内容配置",
        );

        if (
          !contentSchema ||
          !contentSchema.columns ||
          contentSchema.columns.length === 0
        ) {
          continue;
        }

        for (const column of contentSchema.columns) {
          // 检查西瓜品级字段是否开启且已填写
          if (column.dataIndex === "requiredWatermelonGrade") {
            formData.watermelonGrade = orderShip?.watermelonGrade;
          }
          // 检查发货地字段是否开启且已填写
          else if (column.dataIndex === "requiredShippingFrom") {
            formData.shippingAddress = orderShip?.shippingAddress;
          }
          // 检查预计到仓时间字段是否开启且已填写
          else if (column.dataIndex === "requiredEstimatedArrivalTime") {
            formData.estimatedArrivalDate = dayjs(
              orderShip?.estimatedArrivalDate,
            ).format("YYYY-MM-DD");
          }
          // 检查备注字段是否开启且已填写
          else if (column.dataIndex === "requiredRemarks") {
            formData.remark = orderShip?.remark;
          }
          // 检查品级字段是否开启且已填写
          else if (column.dataIndex === "requiredGrade") {
            formData.orderShipItemList = orderShip?.orderShipItemList;
          }
        }
      }
      business.orderShip.generateDocumentOrderShip(formData).then();
    }
  };

  // 返回上一步
  const goToPrevStep = () => {
    if (step > 0) {
      setStep(step - 1);
    }
  };

  // 重置表单
  const resetForm = () => {
    setStep(1);
    // 重新加载初始数据
    if (orderId && orderShipId) {
      init(orderId, orderShipId).then();
    }
  };

  // 重新生成单据
  const regenerateDocument = () => {
    setStep(1);
  };

  return (
    <>
      <View
        className={
          "flex flex-1 flex-col overflow-x-hidden overflow-y-auto bg-[#D1D5DB]"
        }
      >
        <View className={"p-2.5"}>
          <View className={"rounded-lg bg-white p-4 shadow-md"}>
            <Steps value={step} status="dynamic" layout="single">
              {orderShip.steps.map((item, index) => (
                <Step key={index} {...item} />
              ))}
            </Steps>
          </View>
        </View>

        <View
          className={classNames("px-2.5", {
            "overflow-hidden": step === 2,
          })}
        >
          {step === 1 && (
            <View className="flex flex-col rounded-lg bg-white p-2.5 shadow-md">
              <DeliveryStep1Form
                ref={step1FormRef}
                moduleList={moduleList}
                orderShip={orderShipVO}
                setOrderShip={setOrderShipVO}
              />
            </View>
          )}

          {step === 2 && <DeliveryStep2Preview moduleList={moduleList} />}

          {step === 3 && pdfUrl && (
            <DeliveryStep3Success pdfUrl={pdfUrl} picUrl={picUrl} />
          )}
        </View>
      </View>

      <View className={"sticky bottom-0 left-0 z-10 w-full bg-white"}>
        <View className={"flex flex-row gap-2.5 p-2.5"}>
          {step == 1 && (
            <View className={"flex-1"}>
              <Button type="default" block size={"large"} onClick={resetForm}>
                重置
              </Button>
            </View>
          )}
          {step == 1 && (
            <View className={"flex-1"}>
              <Button
                type="primary"
                block
                size={"large"}
                onClick={previewAndConfirm}
              >
                下一步
              </Button>
            </View>
          )}
          {step == 2 && (
            <View className={"flex-1"}>
              <Button
                type="default"
                block
                size={"large"}
                onClick={goToPrevStep}
              >
                返回修改
              </Button>
            </View>
          )}
          {step == 2 && (
            <View className={"flex-1"}>
              <Button
                type="primary"
                block
                size={"large"}
                onClick={generateShippingDocument}
              >
                生成发货单据
              </Button>
            </View>
          )}
          {step == 3 && (
            <View className={"flex-1"}>
              <Button
                type="default"
                block
                size={"large"}
                onClick={() =>
                  Taro.switchTab({
                    url: buildUrl("/pages/main/index/index"),
                  })
                }
              >
                返回首页
              </Button>
            </View>
          )}
          {step == 3 && (
            <View className={"flex-1"}>
              <Button
                type="primary"
                block
                size={"large"}
                onClick={regenerateDocument}
              >
                重新生成
              </Button>
            </View>
          )}
        </View>
        <SafeArea position={"bottom"} />
      </View>
    </>
  );
});