"use client";

import React, { useState, useEffect, useCallback } from "react";
import { useRouter, useSearchParams } from "next/navigation";
import { Toast } from "antd-mobile";
import { generateSignature } from "@/utils/crypto";
import webviewBaseRequest from "@/utils/webviewBaseRequest";
import Link from "next/link";

export default function Pay() {
  const router = useRouter();
  const searchParams = useSearchParams();
  const alipayBlock = () => {
    if (base?.b_mid === 161) {
      createOrder("alipay_h5");
      return;
    }
    Toast.show({
      content: "支付渠道维护升级中，请24小时后再试",
    });
  };

  //商品列表
  const [productList, setProductList] = useState([]);

  //选择的价格档位
  const [selectedPrice, setSelectedPrice] = useState({});

  //选择任意金额充值
  const [customCoin, setCustomCoin] = useState({ selected: false, num: 1000 });

  //备用支付渠道是否展示
  const [isBackupPaymentVisible, setIsBackupPaymentVisible] = useState(false);

  //任意金额充值的金币数量
  const handleChangeCustomCoin = (e) => {
    let newValue = parseInt(e.target.value, 10);
    // 确保输入的值在最小值和最大值范围内
    if (newValue >= 0 && newValue <= 100000) {
      setCustomCoin({ ...customCoin, num: newValue });
    } else if (isNaN(newValue)) {
      setCustomCoin({ ...customCoin, num: 0 });
    } else if (newValue > 100000) {
      setCustomCoin({ ...customCoin, num: 100000 });
    }
  };

  //备用支付渠道是否展示
  const handleBackupPaymentVisible = () => {
    setIsBackupPaymentVisible(true);
  };

  //获取当前充值档位
  const [isFetching, setIsFetching] = useState(true);
  const getBase = useCallback(
    (webviewBase) => {
      let searchParamsObj = null;
      let currentBaseCode = searchParams.get("base");
      if (currentBaseCode) {
        let currentBase = JSON.parse(currentBaseCode);
        searchParamsObj = { ...currentBase };
      }
      return searchParamsObj || webviewBase;
    },
    [searchParams]
  );
  useEffect(() => {
    const getData = async () => {
      const webviewBase = webviewBaseRequest();
      const base = getBase(webviewBase);
      const body = { ...base };
      const signature = generateSignature(body);
      try {
        const response = await fetch(
          `/api/vas/get_coins_product_list?signature=${signature}`,
          {
            method: "POST",
            headers: {
              "Content-Type": "application/json",
            },
            body: JSON.stringify(body),
          }
        );
        const data = await response.json();
        if (data.ret === -1) {
          Toast.show({
            content: data.msg,
          });
          return;
        }
        setProductList(data.data.list_alipay_h5);
        setIsFetching(false);
      } catch (error) {
        console.error(error);
      }
    };
    getData();
  }, []);

  //创建充值订单
  const [isLoading, setIsLoading] = useState(false);
  const createOrder = async (type = "alipay_h5") => {
    if (!selectedPrice.id && !customCoin.selected) {
      Toast.show({
        content: "请选择充值档位",
      });
      return;
    }
    if (customCoin.selected && customCoin.num < 10) {
      Toast.show({
        content: "最低充值1元哦～",
      });
      return;
    }
    const webviewBase = webviewBaseRequest();
    const base = getBase(webviewBase);

    const body = {
      ...base,
      product_id: customCoin.selected ? "h5_custom_coin" : selectedPrice.id,
      custom_coins: customCoin.selected ? customCoin.num : 0,
      pay_type: type,
      redirect_url: type === "yeepay_wxpay_h5" ? window.location.href : "",
      from: searchParams.get("base") ? "web" : "app",
    };

    //如果是微信jsapi支付直接跳转到中间页
    if (type === "wxpay_jsapi") {
      router.push(`/pay/${encodeURIComponent(JSON.stringify(body))}`);
      return;
    }

    setIsLoading(true);

    const signature = generateSignature(body);
    try {
      const response = await fetch(
        `/api/vas/create_order?signature=${signature}`,
        {
          method: "POST",
          headers: {
            "Content-Type": "application/json",
          },
          body: JSON.stringify(body),
        }
      );
      const data = await response.json();
      if (data.ret === -1) {
        Toast.show({
          content: data.msg,
        });
        return;
      }
      switch (type) {
        case "yeepay_alipay_h5":
          router.push(`${data.data.yeepay_alipay_h5_param_str}`);
          break;
        case "yeepay_wxpay_h5":
          router.push(`${data.data.yeepay_wxpay_h5_param_str}`);
          break;
        case "alipay_h5":
          router.push(`${data.data.alipay_h5_param_str}`);
          break;
        case "wxpay_h5":
          router.push(
            `https://shop.tiefen.fun/pay/wxpay_h5/${encodeURIComponent(
              data.data.wxpay_h5_param_str
            )}`
          );
          break;
        default:
          router.push(`${data.data.alipay_h5_param_str}`);
          break;
      }
    } catch (error) {
      console.error(error);
    } finally {
      setIsLoading(false);
    }
  };

  //创建备用充值订单
  const createBackupPaymentOrder = async (type = "alipay_h5") => {
    if (!selectedPrice.id && !customCoin.selected) {
      Toast.show({
        content: "请选择充值档位",
      });
      return;
    }
    if (customCoin.selected && customCoin.num < 10) {
      Toast.show({
        content: "最低充值1元哦～",
      });
      return;
    }
    const webviewBase = webviewBaseRequest();
    const base = getBase(webviewBase);

    const body = {
      ...base,
      product_id: customCoin.selected ? "h5_custom_coin" : selectedPrice.id,
      custom_coins: customCoin.selected ? customCoin.num : 0,
      pay_type: type,
      redirect_url: type === "yeepay_wxpay_h5" ? window.location.href : "",
      from: searchParams.get("base") ? "web" : "app",
      ver: "aliv2",
    };

    //如果是微信jsapi支付直接跳转到中间页
    if (type === "wxpay_jsapi") {
      router.push(`/pay/${encodeURIComponent(JSON.stringify(body))}`);
      return;
    }

    setIsLoading(true);

    const signature = generateSignature(body);
    try {
      const response = await fetch(
        `/api/vas/create_order?signature=${signature}`,
        {
          method: "POST",
          headers: {
            "Content-Type": "application/json",
          },
          body: JSON.stringify(body),
        }
      );
      const data = await response.json();
      if (data.ret === -1) {
        Toast.show({
          content: data.msg,
        });
        return;
      }
      switch (type) {
        case "yeepay_alipay_h5":
          router.push(`${data.data.yeepay_alipay_h5_param_str}`);
          break;
        case "yeepay_wxpay_h5":
          router.push(`${data.data.yeepay_wxpay_h5_param_str}`);
          break;
        case "alipay_h5":
          router.push(`${data.data.alipay_h5_param_str}`);
          break;
        case "wxpay_h5":
          router.push(
            `https://shop.tiefen.fun/pay/wxpay_h5/${encodeURIComponent(
              data.data.wxpay_h5_param_str
            )}`
          );
          break;
        default:
          router.push(`${data.data.alipay_h5_param_str}`);
          break;
      }
    } catch (error) {
      console.error(error);
    } finally {
      setIsLoading(false);
    }
  };

  const PriceItem = ({ item }) => {
    const handleClickPrice = (item) => {
      setSelectedPrice(item);
      setCustomCoin({ ...customCoin, selected: false });
    };
    return (
      <div className="basis-1/3 p-2">
        <button
          onClick={() => handleClickPrice(item)}
          className={
            selectedPrice.id === item.id
              ? "flex flex-col w-full py-4 border bg-[#FF61B030] border-primary rounded-lg items-center"
              : "flex flex-col w-full py-4 border bg-[#FFFFFF1A] border-secondary rounded-lg items-center"
          }
        >
          <p
            className={
              selectedPrice.id === item.id
                ? "text-base text-primary"
                : "text-base text-secondary"
            }
          >
            {item.name}
          </p>
          <p
            className={
              selectedPrice.real_price === item.real_price
                ? "text-base text-primary"
                : "text-base text-secondary"
            }
          >
            ¥{item.real_price / 100}
          </p>
        </button>
      </div>
    );
  };

  if (isFetching) {
    return (
      <section className="flex flex-1 justify-center container">
        <span className="absolute top-1/2 loading loading-spinner loading-lg"></span>
      </section>
    );
  }

  return (
    <section className="flex flex-1 justify-center container">
      {isLoading && (
        <span className="absolute top-1/2 loading loading-spinner loading-lg"></span>
      )}
      <div className="flex flex-1 flex-col p-4">
        <div
          onClick={() => router.push("/pay/info")}
          className="flex flex-row items-center bg-neutral rounded-lg w-full p-2"
        >
          <svg viewBox="0 0 1024 1024" width="24" height="24">
            <path
              d="M512 65.983389c-245.952318 0-446.016611 200.064292-446.016611 446.016611S266.047682 958.016611 512 958.016611 958.016611 757.952318 958.016611 512 757.952318 65.983389 512 65.983389zM544.00086 736.00086c0 17.695686-14.303454 32.00086-32.00086 32.00086s-32.00086-14.303454-32.00086-32.00086L479.99914 448c0-17.695686 14.303454-32.00086 32.00086-32.00086 17.695686 0 32.00086 14.303454 32.00086 32.00086L544.00086 736.00086zM512 352.00086c-26.496224 0-48.00043-21.53689-48.00043-48.00043 0-26.527187 21.504206-48.00043 48.00043-48.00043s48.00043 21.471523 48.00043 48.00043C560.00043 330.46397 538.496224 352.00086 512 352.00086z"
              fill="#FFF04C"
            ></path>
          </svg>
          <div className="ml-2 flex flex-col">
            <p className="text-base font-semibold text-white">支付遇到问题？</p>
            <p className="text-xs text-secondary">
              无法唤起支付宝APP，点击支付无反应？
            </p>
          </div>
          <div className="ml-auto">
            <svg viewBox="0 0 1024 1024" width="24" height="24">
              <path
                d="M761.055557 532.128047c0.512619-0.992555 1.343475-1.823411 1.792447-2.848649 8.800538-18.304636 5.919204-40.703346-9.664077-55.424808L399.935923 139.743798c-19.264507-18.208305-49.631179-17.344765-67.872168 1.888778-18.208305 19.264507-17.375729 49.631179 1.888778 67.872168l316.960409 299.839269L335.199677 813.631716c-19.071845 18.399247-19.648112 48.767639-1.247144 67.872168 9.407768 9.791372 21.984142 14.688778 34.560516 14.688778 12.000108 0 24.000215-4.479398 33.311652-13.439914l350.048434-337.375729c0.672598-0.672598 0.927187-1.599785 1.599785-2.303346 0.512619-0.479935 1.056202-0.832576 1.567101-1.343475C757.759656 538.879828 759.199462 535.391265 761.055557 532.128047z"
                fill="#ffffff"
              ></path>
            </svg>
          </div>
        </div>
        <p className="text-white text-base font-semibold my-2">选择充值金额</p>
        <div className="flex flex-wrap">
          {productList?.map((item) => (
            <PriceItem key={item.id} item={item} />
          ))}
          {/* 任意金额充值 */}
          <div className="basis-1/3 p-2">
            <button
              onClick={() => {
                setSelectedPrice([]);
                setCustomCoin({ ...customCoin, selected: true });
              }}
              className={
                customCoin.selected
                  ? "flex flex-col w-full h-full py-4 border bg-[#FF61B030] border-primary rounded-lg items-center justify-center"
                  : "flex flex-col w-full h-full py-4 border bg-[#FFFFFF1A] border-secondary rounded-lg items-center justify-center"
              }
            >
              <p
                className={
                  customCoin.selected
                    ? "text-base text-primary"
                    : "text-base text-secondary"
                }
              >
                自定义金币
              </p>
            </button>
          </div>
        </div>
        {customCoin.selected && (
          <div className="px-2 mt-2">
            <input
              type="number"
              name="custom_price"
              placeholder="请输入金币数额"
              value={customCoin.num.toString()}
              onChange={handleChangeCustomCoin}
              className="input input-bordered input-md text-base input-primary w-full"
            />
            <p className="text-secondary text-base mt-2">
              预估金额：¥{customCoin.num / 10}
            </p>
          </div>
        )}
        <div className="flex flex-col w-full mt-auto z-20">
          <div className="flex flex-col pt-3 pb-11 px-4 bg-[#07050AE5]">
            <div className="flex flex-row justify-between">
              <div className="w-full px-2">
                <div
                  onClick={() => createOrder("alipay_h5")}
                  className="flex flex-row cursor-pointer gap-1.5 h-11 items-center justify-center bg-primary rounded-full"
                >
                  <img
                    className="w-[22px]"
                    src={
                      process.env.NEXT_PUBLIC_CDN_URL +
                      "/public/images/alipay.png"
                    }
                    alt=""
                  />
                  <p className="text-white text-base font-medium whitespace-nowrap">
                    支付宝支付
                  </p>
                </div>
              </div>
            </div>
            {isBackupPaymentVisible ? (
              <div className="px-2 mt-4">
                <div
                  onClick={() => createBackupPaymentOrder("alipay_h5")}
                  className="flex flex-row cursor-pointer gap-1.5 h-11 items-center justify-center bg-primary rounded-full"
                >
                  <img
                    className="w-[22px]"
                    src={
                      process.env.NEXT_PUBLIC_CDN_URL +
                      "/public/images/alipay.png"
                    }
                    alt=""
                  />
                  <p className="text-white text-base font-medium whitespace-nowrap">
                    【备用】支付宝支付
                  </p>
                </div>
              </div>
            ) : (
              <p className="text-secondary text-xs font-medium mt-4 text-center mb-1">
                若无法支付，请尝试
                <span
                  className="link text-[#309EDC]"
                  onClick={handleBackupPaymentVisible}
                >
                  备用支付渠道
                </span>
              </p>
            )}
            <p className="text-secondary text-xs font-medium mt-2 text-center mb-1">
              确认购买即视为同意
              <Link
                className="link text-[#309EDC]"
                href="/doc/rechargeagreement"
              >
                《用户充值协议》
              </Link>
            </p>
          </div>
        </div>
      </div>
    </section>
  );
}