import { ClubOfferData, PurchaseFromCatalogComposer } from '@nitrots/nitro-renderer';
import { FC, useCallback, useEffect, useMemo, useRef, useState } from 'react';
import { CatalogPurchaseState, LocalizeText, SanitizeHtml, SendMessageComposer } from '../../../../../api';
import { Button, Column, Flex, Grid, LayoutCurrencyIcon, LayoutGridItem, LayoutLoadingSpinnerView, Text } from '../../../../../common';
import { CatalogEvent, CatalogPurchaseFailureEvent, CatalogPurchasedEvent } from '../../../../../events';
import { useCatalogData, useClubOffers, usePurse, useUiEvent } from '../../../../../hooks';
import { CatalogHeaderView } from '../../catalog-header/CatalogHeaderView';
import { CatalogLayoutProps } from './CatalogLayout.types';

const BUILDERS_CLUB_WINDOW_ID = 2;
const BUILDERS_CLUB_ADDONS_WINDOW_ID = 3;

export const CatalogLayoutBuildersClubBuyView: FC<CatalogLayoutProps> = () =>
{
    const [ pendingOffer, setPendingOffer ] = useState<ClubOfferData>(null);
    const [ purchaseState, setPurchaseState ] = useState(CatalogPurchaseState.NONE);
    const { currentPage = null } = useCatalogData();
    const { getCurrencyAmount = null } = usePurse();
    const isPurchasingRef = useRef(false);
    const isAddonLayout = (currentPage?.layoutCode === 'builders_club_addons');
    const windowId = (isAddonLayout ? BUILDERS_CLUB_ADDONS_WINDOW_ID : BUILDERS_CLUB_WINDOW_ID);
    const { data: offers = null } = useClubOffers(windowId);

    const onCatalogEvent = useCallback((event: CatalogEvent) =>
    {
        switch(event.type)
        {
            case CatalogPurchasedEvent.PURCHASE_SUCCESS:
                isPurchasingRef.current = false;
                setPurchaseState(CatalogPurchaseState.NONE);
                return;
            case CatalogPurchaseFailureEvent.PURCHASE_FAILED:
                isPurchasingRef.current = false;
                setPurchaseState(CatalogPurchaseState.FAILED);
                return;
        }
    }, []);

    useUiEvent(CatalogPurchasedEvent.PURCHASE_SUCCESS, onCatalogEvent);
    useUiEvent(CatalogPurchaseFailureEvent.PURCHASE_FAILED, onCatalogEvent);

    const getOfferTotalUnits = useCallback((offer: ClubOfferData) =>
    {
        if(!offer) return 0;

        return ((offer.months * 31) + offer.extraDays);
    }, []);

    const getOfferName = useCallback((offer: ClubOfferData) =>
    {
        if(!offer) return '';

        const localized = LocalizeText(offer.productCode);

        if(localized && (localized !== offer.productCode)) return localized;

        return offer.productCode.replace(/_/g, ' ');
    }, []);

    const getOfferMeta = useCallback((offer: ClubOfferData) =>
    {
        if(!offer) return '';

        if(isAddonLayout)
        {
            const units = getOfferTotalUnits(offer);

            return (units > 0) ? `+${ units }` : '';
        }

        const parts: string[] = [];

        if(offer.months > 0) parts.push(LocalizeText('catalog.vip.item.header.months', [ 'num_months' ], [ offer.months.toString() ]));
        if(offer.extraDays > 0) parts.push(LocalizeText('catalog.vip.item.header.days', [ 'num_days' ], [ offer.extraDays.toString() ]));

        return parts.join(' ');
    }, [ getOfferTotalUnits, isAddonLayout ]);

    const purchaseOffer = useCallback(() =>
    {
        if(!pendingOffer || !currentPage || isPurchasingRef.current) return;

        isPurchasingRef.current = true;
        setPurchaseState(CatalogPurchaseState.PURCHASE);
        SendMessageComposer(new PurchaseFromCatalogComposer(currentPage.pageId, pendingOffer.offerId, null, 1));
    }, [ pendingOffer, currentPage ]);

    const getPurchaseButton = useCallback(() =>
    {
        if(!pendingOffer) return null;

        if(pendingOffer.priceCredits > getCurrencyAmount(-1))
        {
            return <Button fullWidth variant="danger">{ LocalizeText('catalog.alert.notenough.title') }</Button>;
        }

        if(pendingOffer.priceActivityPoints > getCurrencyAmount(pendingOffer.priceActivityPointsType))
        {
            return <Button fullWidth variant="danger">{ LocalizeText(`catalog.alert.notenough.activitypoints.title.${ pendingOffer.priceActivityPointsType }`) }</Button>;
        }

        switch(purchaseState)
        {
            case CatalogPurchaseState.CONFIRM:
                return <Button fullWidth variant="warning" onClick={ purchaseOffer }>{ LocalizeText('catalog.marketplace.confirm_title') }</Button>;
            case CatalogPurchaseState.PURCHASE:
                return <Button disabled fullWidth variant="primary"><LayoutLoadingSpinnerView /></Button>;
            case CatalogPurchaseState.FAILED:
                return <Button disabled fullWidth variant="danger">{ LocalizeText('generic.failed') }</Button>;
            case CatalogPurchaseState.NONE:
            default:
                return <Button fullWidth variant="success" onClick={ () => setPurchaseState(CatalogPurchaseState.CONFIRM) }>{ LocalizeText('buy') }</Button>;
        }
    }, [ getCurrencyAmount, pendingOffer, purchaseOffer, purchaseState ]);

    const pageDescription = useMemo(() =>
    {
        if(!currentPage) return '';

        return currentPage.localization.getText(1) || currentPage.localization.getText(2) || currentPage.localization.getText(0) || '';
    }, [ currentPage ]);

    useEffect(() =>
    {
        if(!offers || !offers.length) return;

        setPendingOffer(prevValue =>
        {
            if(prevValue && offers.some(offer => (offer.offerId === prevValue.offerId))) return prevValue;

            return offers[0];
        });
    }, [ offers ]);

    return (
        <div className="flex h-full flex-col gap-2">
            { currentPage?.localization?.getImage(0) &&
                <CatalogHeaderView imageUrl={ currentPage.localization.getImage(0) } /> }
            <Grid>
                <Column fullHeight justifyContent="between" overflow="hidden" size={ 7 }>
                    <Column gap={ 1 } overflow="auto">
                        { offers && (offers.length > 0) && offers.map((offer, index) =>
                        {
                            const meta = getOfferMeta(offer);

                            return (
                                <LayoutGridItem key={ index } alignItems="center" center={ false } className="p-2" column={ false } itemActive={ pendingOffer?.offerId === offer.offerId } justifyContent="between" onClick={ () =>
                                {
                                    setPurchaseState(CatalogPurchaseState.NONE);
                                    setPendingOffer(offer);
                                } }>
                                    <Column gap={ 0 }>
                                        <Text fontWeight="bold">{ getOfferName(offer) }</Text>
                                        { meta.length > 0 && <Text small>{ meta }</Text> }
                                    </Column>
                                    <div className="flex flex-col gap-1">
                                        { (offer.priceCredits > 0) &&
                                        <Flex alignItems="center" gap={ 1 } justifyContent="end">
                                            <Text>{ offer.priceCredits }</Text>
                                            <LayoutCurrencyIcon type={ -1 } />
                                        </Flex> }
                                        { (offer.priceActivityPoints > 0) &&
                                        <Flex alignItems="center" gap={ 1 } justifyContent="end">
                                            <Text>{ offer.priceActivityPoints }</Text>
                                            <LayoutCurrencyIcon type={ offer.priceActivityPointsType } />
                                        </Flex> }
                                    </div>
                                </LayoutGridItem>
                            );
                        }) }
                    </Column>
                </Column>
                <Column gap={ 2 } overflow="hidden" size={ 5 }>
                    <Column center grow overflow="hidden">
                        { currentPage?.localization.getImage(1) && <img alt="" src={ currentPage.localization.getImage(1) } /> }
                        { pageDescription.length > 0 && <Text center dangerouslySetInnerHTML={ { __html: SanitizeHtml(pageDescription) } } overflow="auto" /> }
                    </Column>
                    { pendingOffer &&
                    <Column fullWidth gap={ 1 }>
                        <Text fontWeight="bold">{ getOfferName(pendingOffer) }</Text>
                        { getOfferMeta(pendingOffer).length > 0 && <Text>{ getOfferMeta(pendingOffer) }</Text> }
                        <Flex alignItems="end">
                            <Column grow gap={ 0 }>
                                <Text>{ currentPage?.localization.getText(0) || '' }</Text>
                            </Column>
                            <div className="flex flex-col gap-1">
                                { (pendingOffer.priceCredits > 0) &&
                                    <Flex alignItems="center" gap={ 1 } justifyContent="end">
                                        <Text>{ pendingOffer.priceCredits }</Text>
                                        <LayoutCurrencyIcon type={ -1 } />
                                    </Flex> }
                                { (pendingOffer.priceActivityPoints > 0) &&
                                    <Flex alignItems="center" gap={ 1 } justifyContent="end">
                                        <Text>{ pendingOffer.priceActivityPoints }</Text>
                                        <LayoutCurrencyIcon type={ pendingOffer.priceActivityPointsType } />
                                    </Flex> }
                            </div>
                        </Flex>
                        { getPurchaseButton() }
                    </Column> }
                </Column>
            </Grid>
        </div>
    );
};