// @flow
import * as SETTINGS from 'constants/settings';
import * as PAGES from 'constants/pages';
import * as React from 'react';
import classnames from 'classnames';
import { FormField, FormFieldPrice, Form } from 'component/common/form';
import Button from 'component/button';
import Page from 'component/page';
import FileSelector from 'component/common/file-selector';
import UnsupportedOnWeb from 'component/common/unsupported-on-web';

type Price = {
  currency: string,
  amount: number,
};

type SetDaemonSettingArg = boolean | string | number | Price;

type DaemonSettings = {
  download_dir: string,
  share_usage_data: boolean,
  max_key_fee?: Price,
};

type Props = {
  setDaemonSetting: (string, ?SetDaemonSettingArg) => void,
  setClientSetting: (string, SetDaemonSettingArg) => void,
  clearCache: () => Promise<any>,
  getThemes: () => void,
  daemonSettings: DaemonSettings,
  showNsfw: boolean,
  instantPurchaseEnabled: boolean,
  instantPurchaseMax: Price,
  currentLanguage: string,
  languages: {},
  currentTheme: string,
  themes: Array<string>,
  automaticDarkModeEnabled: boolean,
  autoplay: boolean,
  autoDownload: boolean,
  changeLanguage: string => void,
  encryptWallet: () => void,
  decryptWallet: () => void,
  updateWalletStatus: () => void,
  walletEncrypted: boolean,
  osNotificationsEnabled: boolean,
  supportOption: boolean,
  userBlockedChannelsCount?: number,
  hideBalance: boolean,
};

type State = {
  clearingCache: boolean,
};

class SettingsPage extends React.PureComponent<Props, State> {
  constructor(props: Props) {
    super(props);

    this.state = {
      clearingCache: false,
    };

    (this: any).onKeyFeeChange = this.onKeyFeeChange.bind(this);
    (this: any).onKeyFeeDisableChange = this.onKeyFeeDisableChange.bind(this);
    (this: any).onInstantPurchaseMaxChange = this.onInstantPurchaseMaxChange.bind(this);
    (this: any).onThemeChange = this.onThemeChange.bind(this);
    (this: any).onAutomaticDarkModeChange = this.onAutomaticDarkModeChange.bind(this);
    (this: any).onLanguageChange = this.onLanguageChange.bind(this);
    (this: any).clearCache = this.clearCache.bind(this);
  }

  componentDidMount() {
    this.props.getThemes();
    this.props.updateWalletStatus();
  }

  onKeyFeeChange(newValue: Price) {
    this.setDaemonSetting('max_key_fee', newValue);
  }

  onKeyFeeDisableChange(isDisabled: boolean) {
    if (isDisabled) this.setDaemonSetting('max_key_fee');
  }

  onThemeChange(event: SyntheticInputEvent<*>) {
    const { value } = event.target;

    if (value === 'dark') {
      this.onAutomaticDarkModeChange(false);
    }

    this.props.setClientSetting(SETTINGS.THEME, value);
  }

  onLanguageChange(event: SyntheticInputEvent<*>) {
    const { value } = event.target;
    this.props.changeLanguage(value);
  }

  onAutomaticDarkModeChange(value: boolean) {
    this.props.setClientSetting(SETTINGS.AUTOMATIC_DARK_MODE_ENABLED, value);
  }

  onInstantPurchaseEnabledChange(enabled: boolean) {
    this.props.setClientSetting(SETTINGS.INSTANT_PURCHASE_ENABLED, enabled);
  }

  onInstantPurchaseMaxChange(newValue: Price) {
    this.props.setClientSetting(SETTINGS.INSTANT_PURCHASE_MAX, newValue);
  }

  onChangeEncryptWallet() {
    const { decryptWallet, walletEncrypted, encryptWallet } = this.props;
    if (walletEncrypted) {
      decryptWallet();
    } else {
      encryptWallet();
    }
  }

  setDaemonSetting(name: string, value: ?SetDaemonSettingArg): void {
    this.props.setDaemonSetting(name, value);
  }

  clearCache() {
    this.setState({
      clearingCache: true,
    });
    const success = () => {
      this.setState({ clearingCache: false });
      window.location.href = 'index.html';
    };
    const clear = () => this.props.clearCache().then(success);

    setTimeout(clear, 1000, { once: true });
  }

  render() {
    const {
      daemonSettings,
      showNsfw,
      instantPurchaseEnabled,
      instantPurchaseMax,
      currentTheme,
      currentLanguage,
      languages,
      themes,
      automaticDarkModeEnabled,
      autoplay,
      walletEncrypted,
      osNotificationsEnabled,
      autoDownload,
      setDaemonSetting,
      setClientSetting,
      supportOption,
      hideBalance,
      userBlockedChannelsCount,
    } = this.props;

    const noDaemonSettings = !daemonSettings || Object.keys(daemonSettings).length === 0;

    const defaultMaxKeyFee = { currency: 'USD', amount: 50 };
    const disableMaxKeyFee = !(daemonSettings && daemonSettings.max_key_fee);

    return (
      <Page>
        {IS_WEB && <UnsupportedOnWeb />}
        {noDaemonSettings ? (
          <section className="card card--section">
            <div className="card__title">{__('Failed to load settings.')}</div>
          </section>
        ) : (
          <div className={classnames({ 'card--disabled': IS_WEB })}>
            <section className="card card--section">
              <h2 className="card__title">{__('Download Directory')}</h2>

              <div className="card__content">
                <FileSelector
                  type="openDirectory"
                  currentPath={daemonSettings.download_dir}
                  onFileChosen={(newDirectory: string) => {
                    setDaemonSetting('download_dir', newDirectory);
                  }}
                />
                <p className="help">{__('LBRY downloads will be saved here.')}</p>
              </div>
            </section>

            <section className="card card--section">
              <h2 className="card__title">{__('Max Purchase Price')}</h2>

              <Form>
                <FormField
                  type="radio"
                  name="no_max_purchase_no_limit"
                  checked={disableMaxKeyFee}
                  label={__('No Limit')}
                  onChange={() => {
                    this.onKeyFeeDisableChange(true);
                  }}
                />
                <FormField
                  type="radio"
                  name="max_purchase_limit"
                  checked={!disableMaxKeyFee}
                  onChange={() => {
                    this.onKeyFeeDisableChange(false);
                    this.onKeyFeeChange(defaultMaxKeyFee);
                  }}
                  label={__('Choose limit')}
                />

                {!disableMaxKeyFee && (
                  <FormFieldPrice
                    name="max_key_fee"
                    min={0}
                    onChange={this.onKeyFeeChange}
                    price={daemonSettings.max_key_fee ? daemonSettings.max_key_fee : defaultMaxKeyFee}
                  />
                )}

                <p className="help">
                  {__('This will prevent you from purchasing any content over a certain cost, as a safety measure.')}
                </p>
              </Form>
            </section>

            <section className="card card--section">
              <h2 className="card__title">{__('Purchase Confirmations')}</h2>

              <Form>
                <FormField
                  type="radio"
                  name="confirm_all_purchases"
                  checked={!instantPurchaseEnabled}
                  label={__('Always confirm before purchasing content')}
                  onChange={() => {
                    this.onInstantPurchaseEnabledChange(false);
                  }}
                />
                <FormField
                  type="radio"
                  name="instant_purchases"
                  checked={instantPurchaseEnabled}
                  label={__('Only confirm purchases over a certain price')}
                  onChange={() => {
                    this.onInstantPurchaseEnabledChange(true);
                  }}
                />

                {instantPurchaseEnabled && (
                  <FormFieldPrice
                    name="confirmation_price"
                    min={0.1}
                    onChange={this.onInstantPurchaseMaxChange}
                    price={instantPurchaseMax}
                  />
                )}

                <p className="help">
                  {__("When this option is chosen, LBRY won't ask you to confirm downloads below your chosen price.")}
                </p>
              </Form>
            </section>

            <section className="card card--section">
              <h2 className="card__title">{__('Content Settings')}</h2>

              <Form>
                <FormField
                  type="checkbox"
                  name="show_nsfw"
                  onChange={() => setClientSetting(SETTINGS.SHOW_NSFW, !showNsfw)}
                  checked={showNsfw}
                  label={__('Show mature content')}
                  helper={__(
                    'Mature content may include nudity, intense sexuality, profanity, or other adult content. By displaying mature content, you are affirming you are of legal age to view mature content in your country or jurisdiction.  '
                  )}
                />
              </Form>
            </section>

            <section className="card card--section">
              <h2 className="card__title">{__('Blocked Channels')}</h2>
              <p className="card__subtitle card__help ">
                {__('You have')} {userBlockedChannelsCount} {__('blocked')}{' '}
                {userBlockedChannelsCount === 1 && __('channel')}
                {userBlockedChannelsCount !== 1 && __('channels')}.{' '}
                <Button button="link" label={__('Manage')} navigate={`/$/${PAGES.BLOCKED}`} />
              </p>
            </section>

            <section className="card card--section">
              <h2 className="card__title">{__('Notifications')}</h2>
              <Form>
                <FormField
                  type="checkbox"
                  name="desktopNotification"
                  onChange={() => setClientSetting(SETTINGS.OS_NOTIFICATIONS_ENABLED, !osNotificationsEnabled)}
                  checked={osNotificationsEnabled}
                  label={__('Show Desktop Notifications')}
                  helper={__('Get notified when a publish is confirmed, or when new content is available to watch.')}
                />
              </Form>
            </section>

            <section className="card card--section">
              <h2 className="card__title">{__('Share Diagnostic Data')}</h2>

              <Form>
                <FormField
                  type="checkbox"
                  name="share_usage_data"
                  onChange={() => setDaemonSetting('share_usage_data', !daemonSettings.share_usage_data)}
                  checked={daemonSettings.share_usage_data}
                  label={
                    <React.Fragment>
                      {__('Help make LBRY better by contributing analytics and diagnostic data about my usage.')}{' '}
                      <Button button="link" label={__('Learn more')} href="https://lbry.com/privacypolicy" />.
                    </React.Fragment>
                  }
                  helper={__('You will be ineligible to earn rewards while diagnostics are not being shared.')}
                />
              </Form>
            </section>

            <section className="card card--section">
              <h2 className="card__title">{__('Appearance')}</h2>

              <Form>
                <fieldset-section>
                  <FormField
                    name="theme_select"
                    type="select"
                    label={__('Theme')}
                    onChange={this.onThemeChange}
                    value={currentTheme}
                    disabled={automaticDarkModeEnabled}
                  >
                    {themes.map(theme => (
                      <option key={theme} value={theme}>
                        {theme}
                      </option>
                    ))}
                  </FormField>
                </fieldset-section>
                <fieldset-section>
                  <FormField
                    type="checkbox"
                    name="automatic_dark_mode"
                    onChange={() => this.onAutomaticDarkModeChange(!automaticDarkModeEnabled)}
                    checked={automaticDarkModeEnabled}
                    label={__('Automatic dark mode (9pm to 8am)')}
                  />
                </fieldset-section>
              </Form>
            </section>

            <section className="card card--section">
              <h2 className="card__title">{__('Wallet Security')}</h2>

              <Form>
                <FormField
                  type="checkbox"
                  name="encrypt_wallet"
                  onChange={() => this.onChangeEncryptWallet()}
                  checked={walletEncrypted}
                  label={__('Encrypt my wallet with a custom password')}
                  helper={
                    <React.Fragment>
                      {__('Secure your local wallet data with a custom password.')}{' '}
                      <strong>{__('Lost passwords cannot be recovered.')} </strong>
                      <Button button="link" label={__('Learn more')} href="https://lbry.com/faq/wallet-encryption" />.
                    </React.Fragment>
                  }
                />

                <FormField
                  type="checkbox"
                  name="hide_balance"
                  onChange={() => setClientSetting(SETTINGS.HIDE_BALANCE, !hideBalance)}
                  checked={hideBalance}
                  label={__('Hide wallet balance in header')}
                />
              </Form>
            </section>

            <section className="card card--section">
              <h2 className="card__title">{__('Experimental Settings')}</h2>

              <Form>
                <FormField
                  type="checkbox"
                  name="support_option"
                  onChange={() => setClientSetting(SETTINGS.SUPPORT_OPTION, !supportOption)}
                  checked={supportOption}
                  label={__('Enable claim support')}
                  helper={
                    <React.Fragment>
                      {__('This will add a Support button along side tipping. Similar to tips, supports help ')}
                      <Button button="link" label={__(' discovery ')} href="https://lbry.com/faq/trending" />
                      {__(' but the LBC is returned to your wallet if revoked.')}
                      {__(' Both also help secure ')}
                      <Button button="link" label={__('vanity names')} href="https://lbry.com/faq/naming" />.
                    </React.Fragment>
                  }
                />

                <FormField
                  type="checkbox"
                  name="auto_download"
                  onChange={() => setClientSetting(SETTINGS.AUTO_DOWNLOAD, !autoDownload)}
                  checked={autoDownload}
                  label={__('Automatically download new content from my subscriptions')}
                  helper={__(
                    "The latest file from each of your subscriptions will be downloaded for quick access as soon as it's published."
                  )}
                />

                <FormField
                  type="checkbox"
                  name="autoplay"
                  onChange={() => setClientSetting(SETTINGS.AUTOPLAY, !autoplay)}
                  checked={autoplay}
                  label={__('Autoplay media files')}
                  helper={__(
                    'Autoplay video and audio files when navigating to a file, as well as the next related item when a file finishes playing.'
                  )}
                />

                {
                  <FormField
                    name="language_select"
                    type="select"
                    label={__('Language')}
                    onChange={this.onLanguageChange}
                    value={currentLanguage}
                    helper={__(
                      'Multi-language support is brand new and incomplete. Switching your language may have unintended consequences.'
                    )}
                  >
                    {Object.keys(languages).map(language => (
                      <option key={language} value={language}>
                        {languages[language]}
                      </option>
                    ))}
                  </FormField>
                }
              </Form>
            </section>

            <section className="card card--section">
              <h2 className="card__title">{__('Application Cache')}</h2>

              <p className="card__subtitle--status">
                {__(
                  'This will clear the application cache. Your wallet will not be affected. Currently, followed tags will be cleared.'
                )}
              </p>

              <Button
                button="inverse"
                label={this.state.clearingCache ? __('Clearing') : __('Clear Cache')}
                onClick={this.clearCache}
                disabled={this.state.clearingCache}
              />
            </section>
          </div>
        )}
      </Page>
    );
  }
}

export default SettingsPage;