import { AddLinkEventTracker, ILinkEventTracker, NitroLogger, RemoveLinkEventTracker } from '@nitrots/nitro-renderer';
import { FC, useEffect, useRef, useState } from 'react';
import { GetConfigurationValue, OpenUrl } from '../../api';
import { NitroCardContentView, NitroCardHeaderView, NitroCardView } from '../../common';

const NEW_LINE_REGEX = /\n\r|\n|\r/mg;

export const NitropediaView: FC<{}> = props =>
{
    const [ content, setContent ] = useState<string>(null);
    const [ header, setHeader ] = useState<string>('');
    const [ dimensions, setDimensions ] = useState<{ width: number, height: number }>(null);
    const elementRef = useRef<HTMLDivElement>(null);

    useEffect(() =>
    {
        const openPage = async (link: string) =>
        {
            try
            {
                const response = await fetch(link);

                if(!response) return;

                const text = await response.text();
                const splitData = text.split(NEW_LINE_REGEX);
                const line = splitData.shift().split('|');

                setHeader(line[0]);

                setDimensions(prevValue =>
                {
                    if(line[1] && (line[1].split(';').length === 2))
                    {
                        return {
                            width: parseInt(line[1].split(';')[0]),
                            height: parseInt(line[1].split(';')[1])
                        };
                    }

                    return null;
                });

                setContent(splitData.join(''));
            }

            catch (error)
            {
                NitroLogger.error(`Failed to fetch ${ link }`);
            }
        };

        const linkTracker: ILinkEventTracker = {
            linkReceived: (url: string) =>
            {
                const value = url.split('/');

                if(value.length < 2) return;

                value.shift();

                openPage(GetConfigurationValue<string>('habbopages.url') + value.join('/'));
            },
            eventUrlPrefix: 'habbopages/'
        };

        AddLinkEventTracker(linkTracker);

        return () => RemoveLinkEventTracker(linkTracker);
    }, []);

    useEffect(() =>
    {
        const handle = (event: MouseEvent) =>
        {
            if(!(event.target instanceof HTMLAnchorElement)) return;

            event.preventDefault();

            const link = event.target.href;

            if(!link || !link.length) return;

            OpenUrl(link);
        };

        document.addEventListener('click', handle);

        return () =>
        {
            document.removeEventListener('click', handle);
        };
    }, []);

    if(!content) return null;

    return (
        <NitroCardView className="nitropedia" style={ dimensions ? { width: dimensions.width, height: dimensions.height } : {} } theme="primary-slim">
            <NitroCardHeaderView headerText={ header } onCloseClick={ () => setContent(null) }/>
            <NitroCardContentView>
                <div ref={ elementRef } className="text-black size-full" dangerouslySetInnerHTML={ { __html: content } } />
            </NitroCardContentView>
        </NitroCardView>
    );
};