import React, { Component } from 'react';
import PropTypes from 'prop-types';
import { connect } from 'react-redux';
import { createSelector } from 'reselect';
import {
  Button,
  Col,
  Row,
  Tab,
  Tabs,
  ToggleButton,
  ToggleButtonGroup
} from '@freecodecamp/react-bootstrap';
// import { StripeProvider, Elements } from 'react-stripe-elements';
import ApplePay from './assets/ApplePay';
import GooglePay from './assets/GooglePay';
import acceptedCards from './assets/accepted-cards.png';
import {
  amountsConfig,
  durationsConfig,
  defaultAmount,
  defaultStateConfig,
  onetimeSKUConfig
} from '../../../../config/donation-settings';
import { deploymentEnv } from '../../../config/env.json';
import Spacer from '../helpers/Spacer';
// import DonateFormChildViewForHOC from './DonateFormChildViewForHOC';
import PaypalButton from './PaypalButton';
import DonateCompletion from './DonateCompletion';
import {
  isSignedInSelector,
  signInLoadingSelector,
  hardGoTo as navigate
} from '../../redux';

import './Donation.css';

const numToCommas = num =>
  num.toString().replace(/(\d)(?=(\d{3})+(?!\d))/g, '$1,');

const propTypes = {
  handleProcessing: PropTypes.func,
  isDonating: PropTypes.bool,
  isSignedIn: PropTypes.bool,
  navigate: PropTypes.func.isRequired,
  showLoading: PropTypes.bool.isRequired,
  stripe: PropTypes.shape({
    createToken: PropTypes.func.isRequired,
    redirectToCheckout: PropTypes.func.isRequired
  })
};

const mapStateToProps = createSelector(
  signInLoadingSelector,
  isSignedInSelector,
  (showLoading, isSignedIn) => ({
    isSignedIn,
    showLoading
  })
);
const mapDispatchToProps = {
  navigate
};

const initialState = {
  donationState: {
    processing: false,
    success: false,
    error: ''
  }
};

class DonateForm extends Component {
  constructor(...args) {
    super(...args);

    this.durations = durationsConfig;
    this.amounts = amountsConfig;

    this.state = {
      ...initialState,
      ...defaultStateConfig,
      processing: false
    };

    this.onDonationStateChange = this.onDonationStateChange.bind(this);
    this.getActiveDonationAmount = this.getActiveDonationAmount.bind(this);
    this.getDonationButtonLabel = this.getDonationButtonLabel.bind(this);
    this.handleSelectAmount = this.handleSelectAmount.bind(this);
    this.handleSelectDuration = this.handleSelectDuration.bind(this);
    this.handleStripeCheckoutRedirect = this.handleStripeCheckoutRedirect.bind(
      this
    );
    this.hideAmountOptionsCB = this.hideAmountOptionsCB.bind(this);
    this.resetDonation = this.resetDonation.bind(this);
  }

  onDonationStateChange(success, processing, error) {
    this.setState(state => ({
      ...state,
      donationState: {
        ...state.donationState,
        processing: processing,
        success: success,
        error: error
      }
    }));
  }

  getActiveDonationAmount(durationSelected, amountSelected) {
    return this.amounts[durationSelected].includes(amountSelected)
      ? amountSelected
      : defaultAmount[durationSelected] || this.amounts[durationSelected][0];
  }

  convertToTimeContributed(amount) {
    return `${numToCommas((amount / 100) * 50)} hours`;
  }

  getFormatedAmountLabel(amount) {
    return `$${numToCommas(amount / 100)}`;
  }

  getDonationButtonLabel() {
    const { donationAmount, donationDuration } = this.state;
    let donationBtnLabel = `Confirm your donation`;
    if (donationDuration === 'onetime') {
      donationBtnLabel = `Confirm your one-time donation of ${this.getFormatedAmountLabel(
        donationAmount
      )}`;
    } else {
      donationBtnLabel = `Confirm your donation of ${this.getFormatedAmountLabel(
        donationAmount
      )} ${donationDuration === 'month' ? 'per month' : 'per year'}`;
    }
    return donationBtnLabel;
  }

  handleSelectDuration(donationDuration) {
    const donationAmount = this.getActiveDonationAmount(donationDuration, 0);
    this.setState({ donationDuration, donationAmount });
  }

  handleSelectAmount(donationAmount) {
    this.setState({ donationAmount });
  }

  async handleStripeCheckoutRedirect(e) {
    const { stripe } = this.props;
    const { donationAmount, donationDuration } = this.state;

    const isOneTime = donationDuration === 'onetime';
    const getSKUId = () => {
      const { id } = onetimeSKUConfig[deploymentEnv || 'staging'].find(
        skuConfig => skuConfig.amount === `${donationAmount}`
      );
      return id;
    };

    e.preventDefault();
    const item = isOneTime
      ? {
          sku: getSKUId(),
          quantity: 1
        }
      : {
          plan: `${this.durations[donationDuration]}-donation-${donationAmount}`,
          quantity: 1
        };
    const { error } = await stripe.redirectToCheckout({
      items: [item],
      successUrl: 'https://www.freecodecamp.org/news/thank-you-for-donating/',
      cancelUrl: 'https://freecodecamp.org/donate'
    });
    console.error(error);
  }

  renderAmountButtons(duration) {
    return this.amounts[duration].map(amount => (
      <ToggleButton
        className='amount-value'
        id={`${this.durations[duration]}-donation-${amount}`}
        key={`${this.durations[duration]}-donation-${amount}`}
        value={amount}
      >
        {this.getFormatedAmountLabel(amount)}
      </ToggleButton>
    ));
  }

  renderDurationAmountOptions() {
    const { donationAmount, donationDuration, processing } = this.state;
    return !processing ? (
      <div>
        <h3>Duration and amount:</h3>
        <Tabs
          activeKey={donationDuration}
          animation={false}
          bsStyle='pills'
          className='donate-tabs'
          id='Duration'
          onSelect={this.handleSelectDuration}
        >
          {Object.keys(this.durations).map(duration => (
            <Tab
              eventKey={duration}
              key={duration}
              title={this.durations[duration]}
            >
              <Spacer />
              <div>
                <ToggleButtonGroup
                  animation={`false`}
                  className='amount-values'
                  name='amounts'
                  onChange={this.handleSelectAmount}
                  type='radio'
                  value={this.getActiveDonationAmount(duration, donationAmount)}
                >
                  {this.renderAmountButtons(duration)}
                </ToggleButtonGroup>
                <Spacer />
                <p className='donation-description'>
                  {`Your `}
                  {this.getFormatedAmountLabel(donationAmount)}
                  {` donation will provide `}
                  {this.convertToTimeContributed(donationAmount)}
                  {` of learning to people around the world`}
                  {duration === 'onetime' ? `.` : ` each ${duration}.`}
                </p>
              </div>
            </Tab>
          ))}
        </Tabs>
      </div>
    ) : null;
  }

  hideAmountOptionsCB(hide) {
    this.setState({ processing: hide });
  }

  renderDonationOptions() {
    const { handleProcessing, isSignedIn } = this.props;
    const { donationAmount, donationDuration } = this.state;

    const isOneTime = donationDuration === 'onetime';

    return (
      <div>
        {isOneTime ? (
          <b>Confirm your one-time donation of ${donationAmount / 100}:</b>
        ) : (
          <b>
            Confirm your donation of ${donationAmount / 100} /{' '}
            {donationDuration}:
          </b>
        )}
        <Spacer />
        <Button
          block={true}
          bsStyle='primary'
          className='btn-cta'
          id='confirm-donation-btn'
          onClick={this.handleStripeCheckoutRedirect}
        >
          <span>Donate with Apple Pay</span>

          <ApplePay className='apple-pay-logo' />
        </Button>
        <Spacer />
        <Button
          block={true}
          bsStyle='primary'
          className='btn-cta'
          id='confirm-donation-btn'
          onClick={this.handleStripeCheckoutRedirect}
        >
          <span>Donate with Google Pay</span>
          <GooglePay className='google-pay-logo' />
        </Button>
        <Spacer />
        <Button
          block={true}
          bsStyle='primary'
          className='btn-cta'
          id='confirm-donation-btn'
          onClick={this.handleStripeCheckoutRedirect}
        >
          <span>Donate with Card</span>

          <img
            alt='accepted cards'
            className='accepted-cards'
            src={acceptedCards}
          />
        </Button>
        <Spacer />
        <PaypalButton
          donationAmount={donationAmount}
          donationDuration={donationDuration}
          handleProcessing={handleProcessing}
          isSubscription={isOneTime ? false : true}
          onDonationStateChange={this.onDonationStateChange}
          skipAddDonation={!isSignedIn}
        />
        <Spacer size={2} />
      </div>
    );
  }

  resetDonation() {
    return this.setState({ ...initialState });
  }

  renderCompletion(props) {
    return <DonateCompletion {...props} />;
  }

  render() {
    const {
      donationState: { processing, success, error }
    } = this.state;
    if (processing || success || error) {
      return this.renderCompletion({
        processing,
        success,
        error,
        reset: this.resetDonation
      });
    }
    return (
      <Row>
        <Col sm={10} smOffset={1} xs={12}>
          {this.renderDurationAmountOptions()}
        </Col>
        <Col sm={10} smOffset={1} xs={12}>
          {this.renderDonationOptions()}
        </Col>
      </Row>
    );
  }
}

DonateForm.displayName = 'DonateForm';
DonateForm.propTypes = propTypes;

export default connect(
  mapStateToProps,
  mapDispatchToProps
)(DonateForm);