// @flow
import React from 'react';
import { useHistory } from 'react-router';
import WalletBalance from 'component/walletBalance';
import WalletFiatBalance from 'component/walletFiatBalance';
import WalletFiatPaymentBalance from 'component/walletFiatPaymentBalance';
import WalletFiatAccountHistory from 'component/walletFiatAccountHistory';
import WalletFiatPaymentHistory from 'component/walletFiatPaymentHistory';
import TxoList from 'component/txoList';
import Page from 'component/page';
import * as PAGES from 'constants/pages';
import Spinner from 'component/spinner';
import YrblWalletEmpty from 'component/yrblWalletEmpty';
import { Lbryio } from 'lbryinc';
import { Tabs, TabList, Tab, TabPanels, TabPanel } from 'component/common/tabs';
import { getStripeEnvironment } from 'util/stripe';

const TAB_QUERY = 'tab';

const TABS = {
  LBRY_CREDITS_TAB: 'credits',
  ACCOUNT_HISTORY: 'fiat-account-history',
  PAYMENT_HISTORY: 'fiat-payment-history',
};

let stripeEnvironment = getStripeEnvironment();

type Props = {
  history: { action: string, push: (string) => void, replace: (string) => void },
  location: { search: string, pathname: string },
  totalBalance: ?number,
};

const WalletPage = (props: Props) => {
  const {
    location: { search },
    push,
  } = useHistory();

  // @if TARGET='web'
  const urlParams = new URLSearchParams(search);

  const currentView = urlParams.get(TAB_QUERY) || TABS.LBRY_CREDITS_TAB;

  let tabIndex;
  switch (currentView) {
    case TABS.LBRY_CREDITS_TAB:
      tabIndex = 0;
      break;
    case TABS.PAYMENT_HISTORY:
      tabIndex = 1;
      break;
    case TABS.ACCOUNT_HISTORY:
      tabIndex = 2;
      break;
    default:
      tabIndex = 0;
      break;
  }

  function onTabChange(newTabIndex) {
    let url = `/$/${PAGES.WALLET}?`;

    if (newTabIndex === 0) {
      url += `${TAB_QUERY}=${TABS.LBRY_CREDITS_TAB}`;
    } else if (newTabIndex === 1) {
      url += `${TAB_QUERY}=${TABS.PAYMENT_HISTORY}`;
    } else if (newTabIndex === 2) {
      url += `${TAB_QUERY}=${TABS.ACCOUNT_HISTORY}`;
    } else {
      url += `${TAB_QUERY}=${TABS.LBRY_CREDITS_TAB}`;
    }
    push(url);
  }

  const [accountStatusResponse, setAccountStatusResponse] = React.useState();
  const [accountTransactionResponse, setAccountTransactionResponse] = React.useState([]);
  const [customerTransactions, setCustomerTransactions] = React.useState([]);

  function getPaymentHistory() {
    return Lbryio.call(
      'customer',
      'list',
      {
        environment: stripeEnvironment,
      },
      'post'
    );
  }

  function getAccountStatus() {
    return Lbryio.call(
      'account',
      'status',
      {
        environment: stripeEnvironment,
      },
      'post'
    );
  }

  function getAccountTransactionsa() {
    return Lbryio.call(
      'account',
      'list',
      {
        environment: stripeEnvironment,
      },
      'post'
    );
  }

  // calculate account transactions section
  React.useEffect(() => {
    (async function () {
      try {
        if (!stripeEnvironment) {
          return;
        }
        const response = await getAccountStatus();

        setAccountStatusResponse(response);

        // TODO: some weird naming clash hence getAccountTransactionsa
        const getAccountTransactions = await getAccountTransactionsa();

        setAccountTransactionResponse(getAccountTransactions);
      } catch (err) {
        console.log(err);
      }
    })();
  }, [stripeEnvironment]);

  // populate customer payment data
  React.useEffect(() => {
    (async function () {
      try {
        // get card payments customer has made
        if (!stripeEnvironment) {
          return;
        }
        let customerTransactionResponse = await getPaymentHistory();
        if (customerTransactionResponse && customerTransactionResponse.length) {
          customerTransactionResponse.reverse();
        }

        setCustomerTransactions(customerTransactionResponse);
      } catch (err) {
        console.log(err);
      }
    })();
  }, [stripeEnvironment]);

  // @endif

  const { totalBalance } = props;
  const showIntro = totalBalance === 0;
  const loading = totalBalance === undefined;

  return (
    <>
      {stripeEnvironment && (
        <Page>
          <Tabs onChange={onTabChange} index={tabIndex}>
            <TabList className="tabs__list--collection-edit-page">
              <Tab>{__('LBRY Credits')}</Tab>
              <Tab>{__('Account History')}</Tab>
              <Tab>{__('Payment History')}</Tab>
            </TabList>
            <TabPanels>
              <TabPanel>
                <div className="section card-stack">
                  <div className="lbc-transactions">
                    {/* if the transactions are loading */}
                    {loading && (
                      <div className="main--empty">
                        <Spinner delayed />
                      </div>
                    )}
                    {/* when the transactions are finished loading */}
                    {!loading && (
                      <>
                        {showIntro ? (
                          <YrblWalletEmpty includeWalletLink />
                        ) : (
                          <div className="card-stack">
                            <WalletBalance />
                            <TxoList search={search} />
                          </div>
                        )}
                      </>
                    )}
                  </div>
                </div>
              </TabPanel>
              <TabPanel>
                <div className="section card-stack">
                  <WalletFiatBalance accountDetails={accountStatusResponse} />
                  <WalletFiatAccountHistory transactions={accountTransactionResponse} />
                </div>
              </TabPanel>
              <TabPanel>
                <div className="section card-stack">
                  <WalletFiatPaymentBalance
                    transactions={customerTransactions}
                    accountDetails={accountStatusResponse}
                  />
                  <WalletFiatPaymentHistory transactions={customerTransactions} />
                </div>
              </TabPanel>
            </TabPanels>
          </Tabs>
        </Page>
      )}
      {!stripeEnvironment && (
        <Page>
          {loading && (
            <div className="main--empty">
              <Spinner delayed />
            </div>
          )}
          {!loading && (
            <>
              {showIntro ? (
                <YrblWalletEmpty includeWalletLink />
              ) : (
                <div className="card-stack">
                  <WalletBalance />
                  <TxoList search={search} />
                </div>
              )}
            </>
          )}
        </Page>
      )}
    </>
  );
};

export default WalletPage;