import React from 'react';
import PropTypes from 'prop-types';
import { withTranslation } from 'react-i18next';
import loggerFactory from '@alias/logger';

import { Modal, ModalHeader, ModalBody } from 'reactstrap';
import { withUnstatedContainers } from '../../UnstatedUtils';
import { toastSuccess, toastError } from '../../../util/apiNotification';

import AppContainer from '../../../services/AppContainer';
import AdminAppContainer from '../../../services/AdminAppContainer';

const logger = loggerFactory('growi:appSettings');

class MailSetting extends React.Component {

  constructor(props) {
    super(props);

    this.state = {
      isInitializeValueModalOpen: false,
    };

    this.emailInput = React.createRef();
    this.hostInput = React.createRef();
    this.portInput = React.createRef();
    this.userInput = React.createRef();
    this.passwordInput = React.createRef();

    this.openInitializeValueModal = this.openInitializeValueModal.bind(this);
    this.closeInitializeValueModal = this.closeInitializeValueModal.bind(this);
    this.submitHandler = this.submitHandler.bind(this);
    this.initialize = this.initialize.bind(this);
  }

  openInitializeValueModal() {
    this.setState({ isInitializeValueModalOpen: true });
  }

  closeInitializeValueModal() {
    this.setState({ isInitializeValueModalOpen: false });
  }

  async submitHandler() {
    const { t, adminAppContainer } = this.props;

    try {
      await adminAppContainer.updateMailSettingHandler();
      toastSuccess(t('toaster.update_successed', { target: t('admin:app_setting.mail_settings') }));
    }
    catch (err) {
      toastError(err);
      logger.error(err);
    }
  }

  async initialize() {
    const { t, adminAppContainer } = this.props;

    try {
      const mailSettingParams = await adminAppContainer.initializeMailSettingHandler();
      toastSuccess(t('toaster.initialize_successed', { target: t('admin:app_setting.mail_settings') }));
      // convert values to '' if value is null for overwriting values of inputs with refs
      this.emailInput.current.value = mailSettingParams.fromAddress || '';
      this.hostInput.current.value = mailSettingParams.smtpHost || '';
      this.portInput.current.value = mailSettingParams.smtpPort || '';
      this.userInput.current.value = mailSettingParams.smtpUser || '';
      this.passwordInput.current.value = mailSettingParams.smtpPassword || '';
      this.closeInitializeValueModal();
    }
    catch (err) {
      toastError(err);
      logger.error(err);
    }
  }

  render() {
    const { t, adminAppContainer } = this.props;

    return (
      <React.Fragment>
        <p className="card well">{t('admin:app_setting.smtp_used')} {t('admin:app_setting.smtp_but_aws')}<br />{t('admin:app_setting.neihter_of')}</p>
        <div className="row form-group mb-5">
          <label className="col-md-3 col-form-label text-left">{t('admin:app_setting.from_e-mail_address')}</label>
          <div className="col-md-6">
            <input
              className="form-control"
              type="text"
              ref={this.emailInput}
              placeholder={`${t('eg')} mail@growi.org`}
              defaultValue={adminAppContainer.state.fromAddress || ''}
              onChange={(e) => { adminAppContainer.changeFromAddress(e.target.value) }}
            />
          </div>
        </div>

        <div className="row form-group mb-5">
          <label className="col-md-3 col-form-label text-left">{t('admin:app_setting.smtp_settings')}</label>
          <div className="col-md-4">
            <label>{t('admin:app_setting.host')}</label>
            <input
              className="form-control"
              type="text"
              ref={this.hostInput}
              defaultValue={adminAppContainer.state.smtpHost || ''}
              onChange={(e) => { adminAppContainer.changeSmtpHost(e.target.value) }}
            />
          </div>
          <div className="col-md-2">
            <label>{t('admin:app_setting.port')}</label>
            <input
              className="form-control"
              ref={this.portInput}
              defaultValue={adminAppContainer.state.smtpPort || ''}
              onChange={(e) => { adminAppContainer.changeSmtpPort(e.target.value) }}
            />
          </div>
        </div>

        <div className="row form-group mb-5">
          <div className="col-md-3 offset-md-3">
            <label>{t('admin:app_setting.user')}</label>
            <input
              className="form-control"
              type="text"
              ref={this.userInput}
              defaultValue={adminAppContainer.state.smtpUser || ''}
              onChange={(e) => { adminAppContainer.changeSmtpUser(e.target.value) }}
            />
          </div>
          <div className="col-md-3">
            <label>{t('Password')}</label>
            <input
              className="form-control"
              type="password"
              ref={this.passwordInput}
              defaultValue={adminAppContainer.state.smtpPassword || ''}
              onChange={(e) => { adminAppContainer.changeSmtpPassword(e.target.value) }}
            />
          </div>
        </div>

        <div className="row my-3">
          <div className="offset-5">
            <button type="button" className="btn btn-primary" onClick={this.submitHandler} disabled={adminAppContainer.state.retrieveError != null}>
              { t('Update') }
            </button>
          </div>
          <div className="offset-1">
            <button
              type="button"
              className="btn btn-secondary"
              onClick={this.openInitializeValueModal}
              disabled={adminAppContainer.state.retrieveError != null}
            >
              {t('admin:app_setting.initialize_mail_settings')}
            </button>
          </div>
        </div>
        <Modal isOpen={this.state.isInitializeValueModalOpen} toggle={this.closeInitializeValueModal} className="initialize-mail-settings">
          <ModalHeader tag="h4" toggle={this.closeInitializeValueModal} className="bg-danger text-light">
            {t('admin:app_setting.initialize_mail_modal_header')}
          </ModalHeader>
          <ModalBody>
            <div className="text-center mb-4">
              {t('admin:app_setting.confirm_to_initialize_mail_settings')}
            </div>
            <div className="text-center my-2">
              <button type="button" className="btn btn-outline-secondary mr-4" onClick={this.closeInitializeValueModal}>
                {t('Cancel')}
              </button>
              <button type="button" className="btn btn-danger" onClick={this.initialize}>
                {t('Reset')}
              </button>
            </div>
          </ModalBody>
        </Modal>
      </React.Fragment>
    );
  }

}

/**
 * Wrapper component for using unstated
 */
const MailSettingWrapper = withUnstatedContainers(MailSetting, [AppContainer, AdminAppContainer]);

MailSetting.propTypes = {
  t: PropTypes.func.isRequired, // i18next
  appContainer: PropTypes.instanceOf(AppContainer).isRequired,
  adminAppContainer: PropTypes.instanceOf(AdminAppContainer).isRequired,
};

export default withTranslation()(MailSettingWrapper);