import SectionWrapper from "@components/SectionWrapper";
import { Tariff, calcTariffPrice, getMessageFromFetchError } from "@frontend/kitui";
import ArrowBackIcon from "@mui/icons-material/ArrowBack";
import { Box, IconButton, Typography, useMediaQuery, useTheme } from "@mui/material";
import NumberIcon from "@root/components/NumberIcon";
import { useTariffStore } from "@root/stores/tariffs";
import { addTariffToCart, useUserStore } from "@root/stores/user";
import { currencyFormatter } from "@root/utils/currencyFormatter";
import { handleComponentError } from "@root/utils/handleComponentError";
import { usePrevLocation } from "@root/utils/hooks/handleCustomBackNavigation";
import { useCartTariffs } from "@root/utils/hooks/useCartTariffs";
import { enqueueSnackbar } from "notistack";
import { useState } from "react";
import { withErrorBoundary } from "react-error-boundary";
import { useLocation } from "react-router-dom";
import FreeTariffCard from "./FreeTariffCard";
import TariffCard from "./TariffCard";
import { useDiscounts } from "@root/api/price";

const subPages = ["Опросник", /*"Шаблонизатор",*/ /*"Сокращатель ссылок"*/];

const StepperText: Record<string, string> = {
    volume: "Тарифы на объём",
    time: "Тарифы на время",
};



function TariffPage() {
    const theme = useTheme();
    const upMd = useMediaQuery(theme.breakpoints.up("md"));
    const isMobile = useMediaQuery(theme.breakpoints.down(600));
    const isTablet = useMediaQuery(theme.breakpoints.down(1000));
    const location = useLocation();
    const tariffs = useTariffStore((state) => state.tariffs);
    const [selectedItem, setSelectedItem] = useState<number>(0);
    const discounts = useDiscounts();
    const purchasesAmount = useUserStore((state) => state.userAccount?.wallet.spent) ?? 0;
    const userId = useUserStore(state => state.user?._id) ?? "";
    const isUserNko = useUserStore((state) => state.userAccount?.status) === "nko";
    const currentTariffs = useCartTariffs();

    const handleCustomBackNavigation = usePrevLocation(location);

    const unit: string = String(location.pathname).slice(9);

    function handleTariffItemClick(tariffId: string) {
        addTariffToCart(tariffId)
            .then(() => {
                enqueueSnackbar("Тариф добавлен в корзину");
            })
            .catch((error) => {
                const message = getMessageFromFetchError(error);
                if (message) enqueueSnackbar(message);
            });
    }

    const filteredTariffs = tariffs.filter((tariff) => {
        if (tariff.privileges[0] === undefined) return false;
        if (
            tariff.privileges[0].type === "day" === (unit === "time") &&
            !tariff.isDeleted &&
            !tariff.isCustom
        ) {
            if (selectedItem === 0 && tariff.privileges[0].serviceKey === "squiz") return true;
            if (selectedItem === 1 && tariff.privileges[0].serviceKey === "templategen") return true;
        }
        return false;
    });

    const createTariffElements = (filteredTariffs: Tariff[], addFreeTariff = false) => {
        const tariffElements = filteredTariffs
            .filter((tariff) => tariff.privileges.length > 0)
            .map((tariff, index) => {
                const { priceBeforeDiscounts, priceAfterDiscounts } = calcTariffPrice(
                    tariff,
                    discounts ?? [],
                    purchasesAmount,
                    currentTariffs ?? [],
                    isUserNko,
                    userId,
                );

                return (
                    <TariffCard
                        key={tariff._id}
                        discount={(priceBeforeDiscounts - priceAfterDiscounts) ? `${((priceBeforeDiscounts - priceAfterDiscounts) / (priceBeforeDiscounts / 100)).toFixed(0)}%` : ""}
                        icon={
                            <NumberIcon
                                number={index + 1}
                                color={unit === "time" ? theme.palette.purple.main : theme.palette.orange.main}
                                backgroundColor={unit === "time" ? "#EEE4FC" : "#FEDFD0"}
                            />
                        }
                        buttonProps={{
                            text: "Выбрать",
                            onClick: () => handleTariffItemClick(tariff._id),
                        }}
                        headerText={tariff.name}
                        text={tariff.description || ""}
                        price={
                            <>
                                {priceBeforeDiscounts !== priceAfterDiscounts && (
                                    <Typography variant="oldPrice">{currencyFormatter.format(priceBeforeDiscounts / 100)}</Typography>
                                )}
                                <Typography variant="price">{currencyFormatter.format(priceAfterDiscounts / 100)}</Typography>
                            </>
                        }
                    />
                );
            });

        if (addFreeTariff) {
            if (tariffElements.length < 6) tariffElements.push(<FreeTariffCard key="free_tariff_card" />);
            else tariffElements.splice(5, 0, <FreeTariffCard key="free_tariff_card" />);
        }

        return tariffElements;
    };

    return (
        <SectionWrapper
            maxWidth="lg"
            sx={{
                mt: "20px",
                mb: upMd ? "100px" : "63px",
                px: isTablet ? (isMobile ? "18px" : "40px") : "20px",
                display: "flex",
                flexDirection: "column",
            }}
        >
            <Box sx={{ display: "flex", alignItems: "center" }}>
                {isMobile && (
                    <IconButton
                        onClick={handleCustomBackNavigation}
                        sx={{ p: 0, height: "28px", width: "28px", color: "black", marginRight: "10px" }}
                    >
                        <ArrowBackIcon />
                    </IconButton>
                )}
                <Typography
                    sx={{
                        marginBottom: "23px",
                        mt: "20px",
                        fontSize: isMobile ? "24px" : "36px",
                        fontWeight: "500",
                    }}
                >
                    {StepperText[unit]}
                </Typography>
            </Box>
            {/* {isMobile ? (
        <Select items={subPages} selectedItem={selectedItem} setSelectedItem={setSelectedItem} />
      ) : (
        <Tabs items={subPages} selectedItem={selectedItem} setSelectedItem={setSelectedItem} />
      )} */}
            <Box
                sx={{
                    justifyContent: "left",
                    mt: "40px",
                    mb: "30px",
                    display: "grid",
                    gap: "40px",
                    gridTemplateColumns: `repeat(auto-fit, minmax(300px, ${isTablet ? "436px" : "360px"}))`,
                }}
            >
                {createTariffElements(filteredTariffs, true)}
            </Box>
            {/*{recentlyPurchased.length > 0 && (*/}
            {/*  <>*/}
            {/*    <Typography*/}
            {/*      sx={{*/}
            {/*        mt: "40px",*/}
            {/*        fontSize: isMobile ? "24px" : "36px",*/}
            {/*        fontWeight: "500",*/}
            {/*      }}*/}
            {/*    >*/}
            {/*      Ранее вы*/}
            {/*    </Typography>*/}
            {/*    <Slider items={createTariffElements(recentlyPurchased)} />*/}
            {/*  </>*/}
            {/*)}*/}
        </SectionWrapper>
    );
}

export default withErrorBoundary(TariffPage, {
    fallback: (
        <Typography mt="8px" textAlign="center">
            Ошибка загрузки тарифов
        </Typography>
    ),
    onError: handleComponentError,
});