// @TODO: Customize advice based on OS
// @flow
import * as React from 'react';
import { shell } from 'electron';
import { Lbry } from 'lbry-redux';
import Native from 'native';
import Button from 'component/button';
import BusyIndicator from 'component/common/busy-indicator';
import Page from 'component/page';
import * as icons from 'constants/icons';

type DeamonSettings = {
  data_dir: string | any,
};

type Props = {
  deamonSettings: DeamonSettings,
  accessToken: string,
  fetchAccessToken: () => void,
  doAuth: () => void,
  user: any,
};

type VersionInfo = {
  os_system: string,
  os_release: string,
  platform: string,
  lbrynet_version: string,
  lbryum_version: string,
};

type State = {
  versionInfo: VersionInfo | any,
  lbryId: String | any,
  uiVersion: ?string,
  upgradeAvailable: ?boolean,
  accessTokenHidden: ?boolean,
};

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

    this.state = {
      versionInfo: null,
      lbryId: null,
      uiVersion: null,
      upgradeAvailable: null,
      accessTokenHidden: true,
    };

    (this: any).showAccessToken = this.showAccessToken.bind(this);
    (this: any).openLogFile = this.openLogFile.bind(this);
  }

  componentDidMount() {
    Native.getAppVersionInfo().then(({ localVersion, upgradeAvailable }) => {
      this.setState({
        uiVersion: localVersion,
        upgradeAvailable,
      });
    });
    Lbry.version().then(info => {
      this.setState({
        versionInfo: info,
      });
    });
    Lbry.status({ session_status: true }).then(info => {
      this.setState({
        lbryId: info.lbry_id,
      });
    });

    if (!this.props.accessToken) this.props.fetchAccessToken();
  }

  showAccessToken() {
    this.setState({
      accessTokenHidden: false,
    });
  }

  openLogFile(userHomeDirectory: string) {
    const logFileName = 'lbrynet.log';
    const os = this.state.versionInfo.os_system;
    if (os === 'Darwin' || os === 'Linux') {
      shell.openItem(`${userHomeDirectory}/${logFileName}`);
    } else {
      shell.openItem(`${userHomeDirectory}\\${logFileName}`);
    }
  }

  render() {
    let ver;
    let osName;
    let platform;
    let newVerLink;

    const { accessToken, doAuth, user, deamonSettings } = this.props;
    const { data_dir: dataDirectory } = deamonSettings;

    if (this.state.versionInfo) {
      ver = this.state.versionInfo;
      if (ver.os_system === 'Darwin') {
        osName = parseInt(ver.os_release.match(/^\d+/), 10) < 16 ? 'Mac OS X' : 'Mac OS';

        platform = `${osName} ${ver.os_release}`;
        newVerLink = 'https://lbry.io/get/lbry.dmg';
      } else if (ver.os_system === 'Linux') {
        platform = `Linux (${ver.platform})`;
        newVerLink = 'https://lbry.io/get/lbry.deb';
      } else {
        platform = `Windows (${ver.platform})`;
        newVerLink = 'https://lbry.io/get/lbry.msi';
      }
    } else {
      ver = null;
    }

    return (
      <Page>
        <section className="card card--section">
          <div className="card__title">{__('Read the FAQ')}</div>
          <p className="card__subtitle">{__('Our FAQ answers many common questions.')}</p>

          <div className="card__actions">
            <Button
              href="https://lbry.io/faq"
              label={__('Read the FAQ')}
              icon={icons.HELP}
              button="primary"
            />
          </div>
        </section>

        <section className="card card--section">
          <div className="card__title">{__('Get Live Help')}</div>
          <p className="card__subtitle">
            {__('Live help is available most hours in the')} <strong>#help</strong>{' '}
            {__('channel of our Discord chat room.')}
          </p>
          <div className="card__actions">
            <Button
              button="primary"
              label={__('Join Our Chat')}
              icon={icons.MESSAGE}
              href="https://chat.lbry.io"
            />
          </div>
        </section>

        <section className="card card--section">
          <div className="card__title">{__('View your Log')}</div>
          <p className="card__subtitle">
            {__('Did something go wrong? Have a look in your log file, or send it to')}{' '}
            <Button button="link" label={__('support')} href="https://lbry.io/faq/support" />.
          </p>
          <div className="card__actions">
            <Button
              button="primary"
              label={__('Open Log')}
              icon={icons.REPORT}
              onClick={() => this.openLogFile(dataDirectory)}
            />
            <Button
              button="primary"
              label={__('Open Log Folder')}
              icon={icons.REPORT}
              onClick={() => shell.showItemInFolder(dataDirectory)}
            />
          </div>
        </section>

        <section className="card card--section">
          <div className="card__title">{__('Report a Bug or Suggest a New Feature')}</div>
          <p className="card__subtitle">
            {__('Did you find something wrong? Think LBRY could add something useful and cool?')}
          </p>
          <div className="card__actions">
            <Button
              navigate="/report"
              label={__('Submit a Bug Report/Feature Request')}
              icon={icons.REPORT}
              button="primary"
            />
          </div>
          <div className="card__meta">{__('Thanks! LBRY is made by its users.')}</div>
        </section>

        <section className="card card--section">
          <div className="card__title">{__('About')}</div>
          {this.state.upgradeAvailable !== null && this.state.upgradeAvailable ? (
            <div className="card__subtitle">
              {__('A newer version of LBRY is available.')}{' '}
              <Button button="link" href={newVerLink} label={__('Download now!')} />
            </div>
          ) : (
            <div className="card__subtitle">{__('Your LBRY app is up to date.')}</div>
          )}

          {this.state.uiVersion && ver ? (
            <table className="table table--stretch table--help">
              <tbody>
                <tr>
                  <td>{__('App')}</td>
                  <td>{this.state.uiVersion}</td>
                </tr>
                <tr>
                  <td>{__('Daemon (lbrynet)')}</td>
                  <td>{ver.lbrynet_version}</td>
                </tr>
                <tr>
                  <td>{__('Wallet (lbryum)')}</td>
                  <td>{ver.lbryum_version}</td>
                </tr>
                <tr>
                  <td>{__('Connected Email')}</td>
                  <td>
                    {user && user.primary_email ? (
                      user.primary_email
                    ) : (
                      <React.Fragment>
                        <span className="empty">{__('none')} </span>
                        <Button button="link" onClick={() => doAuth()} label={__('set email')} />
                      </React.Fragment>
                    )}
                  </td>
                </tr>
                <tr>
                  <td>{__('Reward Eligible')}</td>
                  <td>{user && user.is_reward_approved ? __('Yes') : __('No')}</td>
                </tr>
                <tr>
                  <td>{__('Platform')}</td>
                  <td>{platform}</td>
                </tr>
                <tr>
                  <td>{__('Installation ID')}</td>
                  <td>{this.state.lbryId}</td>
                </tr>
                <tr>
                  <td>{__('Access Token')}</td>
                  <td>
                    {this.state.accessTokenHidden && (
                      <Button button="link" label={__('View')} onClick={this.showAccessToken} />
                    )}
                    {!this.state.accessTokenHidden &&
                      accessToken && (
                        <div>
                          <p>{accessToken}</p>
                          <div className="help">
                            {__('This is equivalent to a password. Do not post or share this.')}
                          </div>
                        </div>
                      )}
                  </td>
                </tr>
              </tbody>
            </table>
          ) : (
            <BusyIndicator message={__('Looking up version info')} />
          )}
        </section>
      </Page>
    );
  }
}

export default HelpPage;