/**
 * This component displays a summary of the amount paid with the virtual wallet, for the current transaction
 */

import React from 'react';
import { useTranslation } from 'react-i18next';
import { react2angular } from 'react2angular';
import { IApplication } from '../models/application';
import '../lib/i18n';
import { IFilterService } from 'angular';
import { Loader } from './loader';
import { Reservation } from '../models/reservation';
import { User } from '../models/user';
import { Wallet } from '../models/wallet';

declare var Application: IApplication;

interface WalletInfoProps {
    reservation: Reservation,
    $filter: IFilterService,
    currentUser: User,
    wallet: Wallet,
    price: number,
    remainingPrice: number,
}

const WalletInfo: React.FC<WalletInfoProps> = ({ reservation, currentUser, wallet, price, remainingPrice, $filter }) => {
    const { t } = useTranslation('shared');

    /**
     * Return the formatted localized amount for the given price (eg. 20.5 => "20,50 €")
     */
    const formatPrice = (price: number): string => {
        return $filter('currency')(price);
    }
    /**
     * Check if the currently connected used is also the person making the reservation.
     * If the currently connected user (ie. the operator), is an admin or a manager, he may book the reservation for someone else.
     */
    const isOperatorAndClient = (): boolean => {
        return currentUser.id == reservation.user_id;
    }
    /**
     * If the client has some money in his wallet & the price is not zero, then we should display this component.
     */
    const shouldBeShown = (): boolean => {
        return wallet.amount > 0 && price > 0;
    }
    /**
     * If the amount in the wallet is not enough to cover the whole price, then the user must pay the remaining price
     * using another payment mean.
     */
    const hasRemainingPrice = (): boolean => {
        return remainingPrice > 0;
    }
    /**
     * Does the current cart contains a payment schedule?
     */
    const isPaymentSchedule = (): boolean => {
        return reservation.plan_id && reservation.payment_schedule;
    }
    /**
     * Return the human-readable name of the item currently bought with the wallet
     */
    const getPriceItem = (): string => {
        let item = 'other';
        if (reservation.slots_attributes.length > 0) {
            item = 'reservation';
        } else if (reservation.plan_id) {
            if (reservation.payment_schedule) {
                item = 'first_deadline';
            }
            else item = 'subscription';
        }

        return t(`app.shared.wallet.wallet_info.item_${item}`);
    }

    return (
      <div className="wallet-info">
          {shouldBeShown() && <div>
              {isOperatorAndClient() && <div>
                  <h3>{t('app.shared.wallet.wallet_info.you_have_AMOUNT_in_wallet', {AMOUNT : formatPrice(wallet.amount)})}</h3>
                  {!hasRemainingPrice() &&<p>
                      {t('app.shared.wallet.wallet_info.wallet_pay_ITEM', {ITEM: getPriceItem()})}
                  </p>}
                  {hasRemainingPrice() &&<p>
                      {t('app.shared.wallet.wallet_info.credit_AMOUNT_for_pay_ITEM', {
                          AMOUNT: formatPrice(remainingPrice),
                          ITEM: getPriceItem()
                      })}
                  </p>}
              </div>}
              {!isOperatorAndClient() && <div>
                  <h3>{t('app.shared.wallet.wallet_info.client_have_AMOUNT_in_wallet', {AMOUNT : formatPrice(wallet.amount)})}</h3>
                  {!hasRemainingPrice() &&<p>
                      {t('app.shared.wallet.wallet_info.client_wallet_pay_ITEM', {ITEM: getPriceItem()})}
                  </p>}
                  {hasRemainingPrice() &&<p>
                      {t('app.shared.wallet.wallet_info.client_credit_AMOUNT_for_pay_ITEM', {
                          AMOUNT: formatPrice(remainingPrice),
                          ITEM: getPriceItem()
                      })}
                  </p>}
              </div>}
              {!hasRemainingPrice() && isPaymentSchedule() &&<p className="info-deadlines">
                  <i className="fa fa-warning" />
                  <span>{t('app.shared.wallet.wallet_info.other_deadlines_no_wallet')}</span>
              </p>}
          </div>}
      </div>
    );
}

const WalletInfoWrapper: React.FC<WalletInfoProps> = ({ currentUser, reservation, $filter, price, remainingPrice, wallet }) => {
    return (
      <Loader>
          <WalletInfo currentUser={currentUser} reservation={reservation} $filter={$filter} price={price} remainingPrice={remainingPrice} wallet={wallet} />
      </Loader>
    );
}

Application.Components.component('walletInfo', react2angular(WalletInfoWrapper, ['currentUser', 'price', 'remainingPrice', 'reservation', 'wallet'], ['$filter']));