import './brewItem.less';
import React, { useCallback } from 'react';
import moment from 'moment';
import request from '../../../../utils/request-middleware.js';

import googleDriveIcon from '../../../../googleDrive.svg';
import homebreweryIcon from '../../../../thumbnail.svg';
import dedent from 'dedent';

const BrewItem = ({
	brew = {
		title       : '',
		description : '',
		authors     : [],
		stubbed     : true,
	},
	updateListFilter = ()=>{},
	reportError = ()=>{},
	renderStorage = true,
})=>{

	const deleteBrew = useCallback(()=>{
		if(brew.authors.length <= 1) {
			if(!window.confirm('Are you sure you want to delete this brew? Because you are the only owner of this brew, the document will be deleted permanently.')) return;
			if(!window.confirm('Are you REALLY sure? You will not be able to recover the document.')) return;
		} else {
			if(!window.confirm('Are you sure you want to remove this brew from your collection? This will remove you as an editor, but other owners will still be able to access the document.')) return;
			if(!window.confirm('Are you REALLY sure? You will lose editor access to this document.')) return;
		}

		request.delete(`/api/${brew.googleId ?? ''}${brew.editId}`).send().end((err, res)=>{
			if(err) reportError(err); else window.location.reload();
		});
	}, [brew, reportError]);

	const updateFilter = useCallback((type, term)=>updateListFilter(type, term), [updateListFilter]);

	const renderDeleteBrewLink = ()=>{
		if(!brew.editId) return null;

		return (
			<button aria-label={`Delete ${brew.title}`} className='deleteLink' onClick={deleteBrew}>
				<i className='fas fa-trash-alt' aria-hidden='true' title='Delete' />
			</button>
		);
	};

	const renderEditLink = ()=>{
		if(!brew.editId) return null;

		let editLink = brew.editId;
		if(brew.googleId && !brew.stubbed) editLink = brew.googleId + editLink;

		return (
			<a className='editLink' href={`/edit/${editLink}`} aria-label={`Edit ${brew.title}`} target='_blank' rel='noopener noreferrer'>
				<i className='fas fa-pencil-alt' title='Edit' />
			</a>
		);
	};

	const renderShareLink = ()=>{
		if(!brew.shareId) return null;

		let shareLink = brew.shareId;
		if(brew.googleId && !brew.stubbed) {
			shareLink = brew.googleId + shareLink;
		}

		return (
			<a className='shareLink' href={`/share/${shareLink}`} aria-label={`Share ${brew.title}`} target='_blank' rel='noopener noreferrer'>
				<i className='fas fa-share-alt' title='Share' />
			</a>
		);
	};

	const renderDownloadLink = ()=>{
		if(!brew.shareId) return null;

		let shareLink = brew.shareId;
		if(brew.googleId && !brew.stubbed) {
			shareLink = brew.googleId + shareLink;
		}

		return (
			<a className='downloadLink' aria-label={`Download ${brew.title}`} href={`/download/${shareLink}`}>
				<i className='fas fa-download' title='Download' />
			</a>
		);
	};

	const renderStorageIcon = ()=>{
		if(!renderStorage) return null;
		if(brew.googleId) {
			return (
				<span title={brew.webViewLink ? 'Your Google Drive Storage' : 'Another User\'s Google Drive Storage'}>
					<a href={brew.webViewLink} target='_blank'>
						<img className='googleDriveIcon' src={googleDriveIcon} alt='Google Drive Storage' />
					</a>
				</span>
			);
		}

		return (
			<span title='Homebrewery Storage'>
				<img className='homebreweryIcon' src={homebreweryIcon} alt='Homebrewery Storage' />
			</span>
		);
	};

	if(Array.isArray(brew.tags)) {
		brew.tags = brew.tags?.filter((tag)=>tag); // remove tags that are empty strings
		brew.tags.sort((a, b)=>{
			return a.indexOf(':') - b.indexOf(':') !== 0 ? a.indexOf(':') - b.indexOf(':') : a.toLowerCase().localeCompare(b.toLowerCase());
		});
	}

	const dateFormatString = 'YYYY-MM-DD HH:mm:ss';

	return (
		<div className='brewItem'>
			{brew.thumbnail && <div className='thumbnail' style={{ backgroundImage: `url(${brew.thumbnail})` }}></div>}
			<div className='text'>
				<h2>{brew.title}</h2>
				<p className='description'>{brew.description}</p>
			</div>
			<hr />
			<div className='info'>
				{brew.tags?.length ? (
					<div className='brewTags' title={`${brew.tags.length} tags:\n${brew.tags.join('\n')}`}>
						<i className='fas fa-tags' />
						{brew.tags.map((tag, idx)=>{
							const matches = tag.match(/^(?:([^:]+):)?([^:]+)$/);
							return <span key={idx} className={matches[1]} onClick={()=>updateFilter(tag)}>{matches[2]}</span>;
						})}
					</div>
				) : null}
				<span title={`Authors:\n${brew.authors?.join('\n')}`}>
					<i className='fas fa-user' />{' '}
					{brew.authors?.map((author, index)=>(
						<React.Fragment key={index}>
							{author === 'hidden' ? (
								<span title="Username contained an email address; hidden to protect user's privacy">
									{author}
								</span>
							) : (<a href={`/user/${encodeURIComponent(author)}`}>{author}</a>)}
							{index < brew.authors.length - 1 && ', '}
						</React.Fragment>
					))}
				</span>
				<br />
				<span aria-label={`Viewed ${brew.views} times`} title={`Last viewed: ${moment(brew.lastViewed).local().format(dateFormatString)}`}>
					<span aria-hidden='true'><i className='fas fa-eye' /> {brew.views}</span>
				</span>
				{brew.pageCount && (
					<span aria-label={`${brew.pageCount} pages`} title={`Page count: ${brew.pageCount}`}>
						<span aria-hidden='true'><i className='far fa-file' /> {brew.pageCount}</span>
					</span>
				)}
				<span
					aria-label={`Last updated ${moment(brew.updatedAt).fromNow()}`}
					title={dedent` Created: ${moment(brew.createdAt).local().format(dateFormatString)}
                        Last updated: ${moment(brew.updatedAt).local().format(dateFormatString)}`}
				>
					<span aria-hidden='true'><i className='fas fa-sync-alt' /> {moment(brew.updatedAt).fromNow()}</span>
				</span>
				{renderStorageIcon()}
			</div>

			<div className='links'>
				{renderShareLink()}
				{renderEditLink()}
				{renderDownloadLink()}
				{renderDeleteBrewLink()}
			</div>
		</div>
	);
};

export default BrewItem;
