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

const UserStore = require('../../stores/user_store.jsx');
const ChannelStore = require('../../stores/channel_store.jsx');
const TeamStore = require('../../stores/team_store.jsx');
const PreferenceStore = require('../../stores/preference_store.jsx');
const Utils = require('../../utils/utils.jsx');
const AsyncClient = require('../../utils/async_client.jsx');

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

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

        this.handleNext = this.handleNext.bind(this);
        this.createScreen = this.createScreen.bind(this);

        this.state = {currentScreen: 0};
    }
    handleNext() {
        if (this.state.currentScreen < 2) {
            this.setState({currentScreen: this.state.currentScreen + 1});
            return;
        }

        Utils.switchChannel(ChannelStore.getByName(Constants.DEFAULT_CHANNEL));

        let preference = PreferenceStore.getPreference(Preferences.TUTORIAL_STEP, UserStore.getCurrentId(), {value: '0'});

        const newValue = (parseInt(preference.value, 10) + 1).toString();

        preference = PreferenceStore.setPreference(Preferences.TUTORIAL_STEP, UserStore.getCurrentId(), newValue);
        AsyncClient.savePreferences([preference]);
    }
    createScreen() {
        switch (this.state.currentScreen) {
        case 0:
            return this.createScreenOne();
        case 1:
            return this.createScreenTwo();
        case 2:
            return this.createScreenThree();
        }
    }
    createScreenOne() {
        return (
            <div>
                <h3>{'Welcome to:'}</h3>
                <h1>{'Mattermost'}</h1>
                <p>{'Your team communications all in one place, instantly searchable and available anywhere.'}</p>
                <p>{'Keep your team connected to help them achieve what matters most.'}</p>
                <div className='tutorial__circles'>
                    <div className='circle active'/>
                    <div className='circle'/>
                    <div className='circle'/>
                </div>
            </div>
        );
    }
    createScreenTwo() {
        return (
            <div>
                <h3>{'How Mattermost works:'}</h3>
                <p>{'Communication happens in public discussion channels, private groups and direct messages.'}</p>
                <p>{'Everything is archived and searchable from any web-enabled laptop, tablet or phone.'}</p>
                <div className='tutorial__circles'>
                    <div className='circle'/>
                    <div className='circle active'/>
                    <div className='circle'/>
                </div>
            </div>
        );
    }
    createScreenThree() {
        const team = TeamStore.getCurrent();
        let inviteModalLink;
        if (team.type === Constants.INVITE_TEAM) {
            inviteModalLink = (
                <a
                    className='intro-links'
                    href='#'
                    data-toggle='modal'
                    data-target='#invite_member'
                >
                    {'Invite teammates'}
                </a>
            );
        } else {
            inviteModalLink = (
                <a
                    className='intro-links'
                    href='#'
                    data-toggle='modal'
                    data-target='#get_link'
                    data-title='Team Invite'
                    data-value={Utils.getWindowLocationOrigin() + '/signup_user_complete/?id=' + team.id}
                >
                    {'Invite teammates'}
                </a>
            );
        }

        return (
            <div>
                <h3>{'You’re all set'}</h3>
                <p>
                    {inviteModalLink}
                    {' when you’re ready.'}
                </p>
                <p>
                    {'Need anything, just email us at '}
                    <a
                        href='mailto:feedback@mattermost.com'
                        target='_blank'
                    >
                        {'feedback@mattermost.com'}
                    </a>
                    {'.'}
                </p>
                {'Click “Next” to enter Town Square. This is the first channel teammates see when they sign up - use it for posting updates everyone needs to know.'}
                <div className='tutorial__circles'>
                    <div className='circle'/>
                    <div className='circle'/>
                    <div className='circle active'/>
                </div>
            </div>
        );
    }
    render() {
        const screen = this.createScreen();

        return (
            <div className='tutorial-steps__container'>
                <div className='tutorial__content'>
                    <div className='tutorial__steps'>
                        {screen}
                        <button
                            className='btn btn-primary'
                            tabIndex='1'
                            onClick={this.handleNext}
                        >
                            {'Next'}
                        </button>
                    </div>
                </div>
            </div>
        );
    }
}