const FormattedMessage = require('react-intl').FormattedMessage;
const injectIntl = require('react-intl').injectIntl;
const intlShape = require('react-intl').intlShape;
const React = require('react');

const FlexRow = require('../../components/flex-row/flex-row.jsx');
const bindAll = require('lodash.bindall');

const Page = require('../../components/page/www/page.jsx');
const render = require('../../lib/render.jsx');
const detectOS = require('../../lib/detect-os.js').default;
const OS_ENUM = require('../../lib/os-enum.js');
const {CHROME_APP_RELEASED} = require('../../lib/feature-flags.js');
const OSChooser = require('../../components/os-chooser/os-chooser.jsx');
const InstallScratch = require('../../components/install-scratch/install-scratch.jsx');
const {isDownloaded, isFromGooglePlay} = require('../../components/install-scratch/install-util.js');

require('./download.scss');
require('../../components/forms/button.scss');

class Download extends React.Component {
    constructor (props) {
        super(props);
        bindAll(this, [
            'onSetOS'
        ]);

        this.state = {
            OS: detectOS()
        };
    }

    onSetOS (os) {
        this.setState({
            OS: os
        });
    }

    render () {
        return (
            <div className="download">
                <div className="download-header">
                    <FlexRow className="inner">
                        <FlexRow className="column download-info">
                            <FlexRow className="column download-copy">
                                <h1 className="download-title">
                                    <img
                                        alt={this.props.intl.formatMessage({id: 'download.iconAltText'})}
                                        className="icon"
                                        height="40"
                                        src="/images/download/icon.png"
                                        width="40"
                                    />
                                    <FormattedMessage
                                        id={CHROME_APP_RELEASED ? 'download.appTitle' :
                                            'download.title'}
                                    />
                                </h1>
                                <span className="download-description">
                                    <FormattedMessage
                                        id={CHROME_APP_RELEASED ? 'download.appIntro' :
                                            'download.intro'}
                                    />
                                </span>
                            </FlexRow>
                            <FlexRow className="column download-requirements-container">
                                <span className="requirements-header">
                                    <FormattedMessage id="download.requirements" />
                                </span>
                                <FlexRow className="download-requirements">
                                    <span>
                                        <img
                                            alt=""
                                            src="/svgs/extensions/windows.svg"
                                        />
                                                Windows 10+
                                    </span>
                                    <span>
                                        <img
                                            alt=""
                                            src="svgs/extensions/mac.svg"
                                        />
                                                macOS 10.13+
                                    </span>
                                    {CHROME_APP_RELEASED && (
                                        <React.Fragment>
                                            <span>
                                                <img
                                                    alt=""
                                                    src="svgs/extensions/chromeos.svg"
                                                />
                                                ChromeOS
                                            </span>
                                            <span>
                                                <img
                                                    alt=""
                                                    src="svgs/extensions/android.svg"
                                                />
                                                Android 6.0+
                                            </span>
                                        </React.Fragment>
                                    )}
                                </FlexRow>
                            </FlexRow>
                        </FlexRow>
                        <div className="download-image">
                            <img
                                alt={this.props.intl.formatMessage({id: 'download.imgAltDownloadIllustration'})}
                                src="/images/download/download.png"
                            />
                        </div>
                    </FlexRow>
                </div>
                <OSChooser
                    currentOS={this.state.OS}
                    handleSetOS={this.onSetOS}
                />
                <InstallScratch currentOS={this.state.OS} />
                {isDownloaded(this.state.OS) && (
                    <div className="download-section">
                        <FlexRow className="inner column">
                            <h2 className="title">
                                <FormattedMessage id="download.olderVersionsTitle" />
                            </h2>
                            <p>
                                <FormattedMessage id="download.olderVersions" />
                            </p>
                            <FlexRow>
                                <div className="older-version">
                                    <a href="/download/scratch2">
                                        <img
                                            alt=""
                                            className="screenshot"
                                            height="106"
                                            src="/images/download/scratch2.png"
                                            width="150"
                                        />
                                    </a>
                                    <p>
                                        <a
                                            className="legacy-link"
                                            href="/download/scratch2"
                                        >
                                            <FormattedMessage id="download.scratch2Desktop" />
                                            <img
                                                className="little-arrow"
                                                src="/svgs/download/r-arrow.svg"
                                            />
                                        </a>
                                    </p>
                                </div>
                                <div className="older-version">
                                    <a href="/scratch_1.4">
                                        <img
                                            alt=""
                                            className="screenshot"
                                            height="106"
                                            src="/images/download/scratch1-4.png"
                                            width="150"
                                        />
                                    </a>
                                    <p>
                                        <a
                                            className="legacy-link"
                                            href="/scratch_1.4"
                                        >
                                            <FormattedMessage id="download.scratch1-4Desktop" />
                                            <img
                                                className="little-arrow"
                                                src="/svgs/download/r-arrow.svg"
                                            />
                                        </a>
                                    </p>
                                </div>
                            </FlexRow>
                        </FlexRow>
                    </div>
                )}
                <div className="download-section faq">
                    <FlexRow className="inner column">
                        <h2 className="title">
                            <FormattedMessage id="download.troubleshootingTitle" />
                        </h2>
                        <h3 className="faq-question">
                            <FormattedMessage id="download.doIHaveToDownload" />
                        </h3>
                        <p>
                            <FormattedMessage id="download.doIHaveToDownloadAnswer" />
                        </p>
                        <h3 className="faq-question">
                            <FormattedMessage id="download.howConnectHardwareDevices" />
                        </h3>
                        {isDownloaded(this.state.OS) && (
                            <p>
                                <FormattedMessage
                                    id="download.howConnectHardwareDevicesAnswerLink"
                                    values={{operatingsystem: this.state.OS}}
                                />
                            </p>
                        )}
                        {isFromGooglePlay(this.state.OS) && (
                            <p>
                                <FormattedMessage
                                    id="download.howConnectHardwareDevicesAnswerApp"
                                    values={{operatingsystem: this.state.OS}}
                                />
                            </p>
                        )}
                        <h3 className="faq-question">
                            <FormattedMessage
                                id="download.canIShareApp"
                                values={{operatingsystem: this.state.OS}}
                            />
                        </h3>
                        {isDownloaded(this.state.OS) && (
                            <p>
                                <FormattedMessage
                                    id="download.canIShareAnswerDownloaded"
                                    values={{operatingsystem: this.state.OS}}
                                />
                            </p>
                        )}
                        {isFromGooglePlay(this.state.OS) && (
                            <p>
                                <FormattedMessage id="download.canIShareAnswerPlayStore" />
                            </p>
                        )}
                        <h3 className="faq-question">
                            <FormattedMessage id="download.appAndBrowser" />
                        </h3>
                        <p>
                            <FormattedMessage id="download.yesAnswer" />
                        </p>
                        <h3 className="faq-question">
                            <FormattedMessage id="download.onPhone" />
                        </h3>
                        <p>
                            <FormattedMessage id="download.onPhoneAnswer" />
                        </p>
                        <h3 className="faq-question">
                            <FormattedMessage id="download.howUpdateApp" />
                        </h3>
                        {isDownloaded(this.state.OS) && (
                            <p>
                                <FormattedMessage
                                    id="download.howUpdateAppAnswerDownload"
                                    values={{operatingsystem: this.state.OS}}
                                />
                            </p>
                        )}
                        {isFromGooglePlay(this.state.OS) && (
                            <p>
                                <FormattedMessage
                                    id="download.howUpdateAppAnswerApp"
                                />
                            </p>
                        )}
                        <h3 className="faq-question">
                            <FormattedMessage id="download.whenSupportLinuxApp" />
                        </h3>
                        <p>
                            <FormattedMessage id="download.whenSupportLinuxAppAnswer" />
                        </p>
                        {isFromGooglePlay(this.state.OS) && (
                            <React.Fragment>
                                <h3 className="faq-question">
                                    <FormattedMessage id="download.whyNoDevicesVisible" />
                                </h3>
                                <p>
                                    <FormattedMessage
                                        id="download.whyNoDevicesVisibleAnswer"
                                        values={{
                                            devicePosessive: (
                                                this.state.OS === OS_ENUM.ANDROID ?
                                                    <FormattedMessage id="download.androidPossessive" /> :
                                                    <FormattedMessage id="download.chromebookPossessive" />
                                            ),
                                            whyNoDevicesContactUsLink: (
                                                <a href="//scratch.mit.edu/contact-us/">
                                                    <FormattedMessage id="download.whyNoDevicesContactUsLink" />
                                                </a>
                                            )
                                        }}
                                    />
                                </p>
                            </React.Fragment>
                        )}
                        {isFromGooglePlay(this.state.OS) && (
                            <React.Fragment>
                                <h3 className="faq-question">
                                    <FormattedMessage
                                        id="download.whyAskForLocation"
                                        values={{operatingsystem: this.state.OS}}
                                    />
                                </h3>
                                <p>
                                    <FormattedMessage id="download.whyAskForLocationAnswer" />
                                </p>
                            </React.Fragment>
                        )}
                        {isFromGooglePlay(this.state.OS) && (
                            <React.Fragment>
                                <h3 className="faq-question">
                                    <FormattedMessage
                                        id="download.whereProjectStored"
                                        values={{operatingsystem: this.state.OS}}
                                    />
                                </h3>
                                <p>
                                    <FormattedMessage id="download.whereProjectStoredAnswer" />
                                </p>
                            </React.Fragment>
                        )}
                    </FlexRow>
                </div>

            </div>
        );

    }
}
Download.propTypes = {
    intl: intlShape

};

const WrappedDownload = injectIntl(Download);

render(<Page><WrappedDownload /></Page>, document.getElementById('app'));