import React from 'react';

import { UserType, MessageType } from './Types';

import Avatar from './Avatar';
import { format } from '../utils/embed';

function PM(props) {
    const { chat } = props;
    return (
        <li>
            <div style={chatItemStyle(props.visitor, chat)}>
                <Avatar user={chat.user} />
                <div style={bubbleStyle(props.visitor, chat)}>
                    <p dangerouslySetInnerHTML={{ __html: format(chat.body) }} />
                </div>
            </div>
        </li>
    );
}

export default React.memo(PM);

function bubbleStyle(me, msg) {
    const isMe = me.uid === msg.user.uid;
    const color = isMe ? '#fff' : '#222';
    const background = isMe ? '#ec4b98' : '#eee';
    return {
        background: background,
        color: color,
        padding: '12px',
        display: 'inline-block'
    };
}

function chatItemStyle(me, msg) {
    const isMe = me.uid === msg.user.uid;
    const alignment = isMe ? 'flex-end' : 'flex-start';
    return {
        padding: '3px 6px',
        listStyle: 'none',
        margin: '10px 0',
        display: 'flex',
        flexDirection: 'column',
        alignItems: alignment
    };
}

PM.propTypes = {
    chat: MessageType.isRequired,
    visitor: UserType.isRequired
};