// Copyright (c) 2015 Mattermost, Inc. All Rights Reserved.
// See License.txt for license information.

const TutorialIntroScreens = require('./tutorial/tutorial_intro_screens.jsx');
const CreatePost = require('./create_post.jsx');
const PostsViewContainer = require('./posts_view_container.jsx');
const ChannelHeader = require('./channel_header.jsx');
const Navbar = require('./navbar.jsx');
const FileUploadOverlay = require('./file_upload_overlay.jsx');

const PreferenceStore = require('../stores/preference_store.jsx');
const UserStore = require('../stores/user_store.jsx');

const Constants = require('../utils/constants.jsx');
const TutorialSteps = Constants.TutorialSteps;
const Preferences = Constants.Preferences;

export default class CenterPanel extends React.Component {
    constructor(props) {
        super(props);

        this.onPreferenceChange = this.onPreferenceChange.bind(this);

        const tutorialPref = PreferenceStore.getPreference(Preferences.TUTORIAL_STEP, UserStore.getCurrentId(), {value: '0'});
        this.state = {showTutorialScreens: parseInt(tutorialPref.value, 10) === TutorialSteps.INTRO_SCREENS};
    }
    componentDidMount() {
        PreferenceStore.addChangeListener(this.onPreferenceChange);
    }
    componentWillUnmount() {
        PreferenceStore.removeChangeListener(this.onPreferenceChange);
    }
    onPreferenceChange() {
        const tutorialPref = PreferenceStore.getPreference(Preferences.TUTORIAL_STEP, UserStore.getCurrentId(), {value: '0'});
        this.setState({showTutorialScreens: parseInt(tutorialPref.value, 10) <= TutorialSteps.INTRO_SCREENS});
    }
    render() {
        let postsContainer;
        if (this.state.showTutorialScreens) {
            postsContainer = <TutorialIntroScreens />;
        } else {
            postsContainer = <PostsViewContainer />;
        }

        return (
            <div className='inner__wrap channel__wrap'>
                <div className='row header'>
                    <div id='navbar'>
                        <Navbar/>
                    </div>
                </div>
                <div className='row main'>
                    <FileUploadOverlay
                        id='file_upload_overlay'
                        overlayType='center'
                    />
                    <div
                        id='app-content'
                        className='app__content'
                    >
                        <div id='channel-header'>
                            <ChannelHeader />
                        </div>
                        <div id='post-list'>
                            {postsContainer}
                        </div>
                        <div
                            className='post-create__container'
                            id='post-create'
                        >
                            <CreatePost />
                        </div>
                    </div>
                </div>
            </div>
        );
    }
}

CenterPanel.defaultProps = {
};

CenterPanel.propTypes = {
};