import React, { useEffect, useState } from 'react';
import { ServerContext } from '@/state/server';
import { NavLink, useLocation } from 'react-router-dom';
import { cleanDirectoryPath } from '@/helpers';
import tw from 'twin.macro';

interface Props {
    renderLeft?: JSX.Element;
    withinFileEditor?: boolean;
    isNewFile?: boolean;
}

export default ({ renderLeft, withinFileEditor, isNewFile }: Props) => {
    const [ file, setFile ] = useState<string | null>(null);
    const id = ServerContext.useStoreState(state => state.server.data!.id);
    const directory = ServerContext.useStoreState(state => state.files.directory);
    const { hash } = useLocation();

    useEffect(() => {
        let pathHash = cleanDirectoryPath(hash);
        try {
            pathHash = decodeURI(pathHash);
        } catch (e) {
            console.warn('Error decoding URL parts in hash:', e);
        }

        if (withinFileEditor && !isNewFile) {
            let name = pathHash.split('/').pop() || null;
            if (name) {
                try {
                    name = decodeURIComponent(name);
                } catch (e) {
                    console.warn('Error decoding filename:', e);
                }
            }
            setFile(name);
        }
    }, [ withinFileEditor, isNewFile, hash ]);

    const breadcrumbs = (): { name: string; path?: string }[] => directory.split('/')
        .filter(directory => !!directory)
        .map((directory, index, dirs) => {
            if (!withinFileEditor && index === dirs.length - 1) {
                return { name: directory };
            }

            return { name: directory, path: `/${dirs.slice(0, index + 1).join('/')}` };
        });

    return (
        <div css={tw`flex flex-grow-0 items-center text-sm text-neutral-500 overflow-x-hidden`}>
            {renderLeft || <div css={tw`w-12`}/>}
            /<span css={tw`px-1 text-neutral-300`}>home</span>/
            <NavLink
                to={`/server/${id}/files`}
                css={tw`px-1 text-neutral-200 no-underline hover:text-neutral-100`}
            >
                container
            </NavLink>/
            {
                breadcrumbs().map((crumb, index) => (
                    crumb.path ?
                        <React.Fragment key={index}>
                            <NavLink
                                to={`/server/${id}/files#${crumb.path}`}
                                css={tw`px-1 text-neutral-200 no-underline hover:text-neutral-100`}
                            >
                                {decodeURIComponent(crumb.name)}
                            </NavLink>/
                        </React.Fragment>
                        :
                        <span key={index} css={tw`px-1 text-neutral-300`}>{decodeURIComponent(crumb.name)}</span>
                ))
            }
            {file &&
            <React.Fragment>
                <span css={tw`px-1 text-neutral-300`}>{file}</span>
            </React.Fragment>
            }
        </div>
    );
};