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

import React from 'react';
import {Dropdown} from 'react-bootstrap';
import StatusIcon from 'components/status_icon.jsx';
import PropTypes from 'prop-types';
import {FormattedMessage} from 'react-intl';
import {UserStatuses} from 'utils/constants.jsx';
import BootstrapSpan from 'components/bootstrap_span.jsx';

export default class StatusDropdown extends React.Component {

    static propTypes = {
        style: PropTypes.object,
        status: PropTypes.string,
        userId: PropTypes.string.isRequired,
        profilePicture: PropTypes.string,
        actions: PropTypes.shape({
            setStatus: PropTypes.func.isRequired
        }).isRequired
    }

    state = {
        showDropdown: false,
        mouseOver: false
    }

    onMouseEnter = () => {
        this.setState({mouseOver: true});
    }

    onMouseLeave = () => {
        this.setState({mouseOver: false});
    }

    onToggle = (showDropdown) => {
        this.setState({showDropdown});
    }

    closeDropdown = () => {
        this.setState({showDropdown: false});
    }

    setStatus = (status) => {
        this.props.actions.setStatus({
            user_id: this.props.userId,
            status
        });
        this.closeDropdown();
    }

    setOnline = (event) => {
        event.preventDefault();
        this.setStatus(UserStatuses.ONLINE);
    }

    setOffline = (event) => {
        event.preventDefault();
        this.setStatus(UserStatuses.OFFLINE);
    }

    setAway = (event) => {
        event.preventDefault();
        this.setStatus(UserStatuses.AWAY);
    }

    renderStatusOnlineAction = () => {
        return this.renderStatusAction(UserStatuses.ONLINE, this.setOnline);
    }

    renderStatusAwayAction = () => {
        return this.renderStatusAction(UserStatuses.AWAY, this.setAway);
    }

    renderStatusOfflineAction = () => {
        return this.renderStatusAction(UserStatuses.OFFLINE, this.setOffline);
    }

    renderProfilePicture = () => {
        if (!this.props.profilePicture) {
            return null;
        }
        return (
            <img
                className='user__picture'
                src={this.props.profilePicture}
            />
        );
    }

    renderStatusAction = (status, onClick) => {
        return (
            <li key={status}>
                <a
                    href={'#'}
                    onClick={onClick}
                >
                    <FormattedMessage
                        id={`status_dropdown.set_${status}`}
                        defaultMessage={status}
                    />
                </a>
            </li>
        );
    }

    renderStatusIcon = () => {
        if (this.state.mouseOver) {
            return (
                <span className={'status status-edit'}>
                    <i
                        className={'fa fa-caret-down'}
                    />
                </span>
            );
        }
        return (
            <StatusIcon
                status={this.props.status}
            />
        );
    }

    render() {
        const statusIcon = this.renderStatusIcon();
        const profilePicture = this.renderProfilePicture();
        const actions = [
            this.renderStatusOnlineAction(),
            this.renderStatusAwayAction(),
            this.renderStatusOfflineAction()
        ];
        return (
            <Dropdown
                id={'status-dropdown'}
                open={this.state.showDropdown}
                onToggle={this.onToggle}
                style={this.props.style}
            >
                <BootstrapSpan
                    bsRole={'toggle'}
                    onMouseEnter={this.onMouseEnter}
                    onMouseLeave={this.onMouseLeave}
                >
                    <div className='status-wrapper'>
                        {profilePicture}
                        <div className='status_dropdown__toggle'>
                            {statusIcon}
                        </div>
                    </div>
                </BootstrapSpan>
                <Dropdown.Menu>
                    {actions}
                </Dropdown.Menu>
            </Dropdown>
        );
    }
}