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import Fuse from 'fuse.js';
import { useEffect, useState } from 'react';
import Navbar, { MobileNavbar } from '../components/navbar';
import Tags from '../components/tag';
import SearchOutlinedIcon from '@material-ui/icons/SearchOutlined';
function SearchBar(props: { searchFunction: () => void; }) {
return <div className='searchBar'>
<input
className='input'
id='searchInput'
placeholder='Search for posts...'
onChange={() => props.searchFunction()}
spellCheck='false'
autoComplete='off'
/>
<button className='button' onClick={() => props.searchFunction()}>
<SearchOutlinedIcon />
</button>
</div>;
}
export interface Post {
title: string;
subtitle: string;
author: string;
date: string;
id: string;
cover: string;
tags: Array<string>;
}
export interface PostsInfo {
valid_tags: Array<string>;
posts: Array<Post>;
}
function Post(props: { post: Post; }) {
return <a className='post' href={'/post/' + props.post.id}>
<b className='title'>{props.post.title}</b>
{props.post.subtitle && <p className='subtitle'>{props.post.subtitle}</p>}
<p className='authordate'>
Written by {props.post.author} on {new Date(props.post.date).toLocaleString('en-us', {
month: 'long',
day: 'numeric',
})}
</p>
<Tags tags={props.post.tags} />
</a>;
}
function Posts(props: { posts: Array<Post>; }) {
return <div className='searchResults'>
{props.posts.map(post => <Post post={post} key={Math.random().toString()} />)}
</div>;
}
function searchFilter(query: string, tags: Array<string>) {
var output = {
query: '',
tags: [],
};
// remove string literals from tag matching
var queryWithoutLiterals = query.replace(/\".+?\"/g, '');
// find tags and remove them from the query
tags.forEach(tag => {
var index = queryWithoutLiterals.indexOf(tag);
if (index == -1) return;
// remove tag from query
queryWithoutLiterals = queryWithoutLiterals.substr(0, index)
+ queryWithoutLiterals.substr(index + tag.length);
output.tags.push(tag);
});
// add back in the string literals (janky just gets pasted on end)
output.query = queryWithoutLiterals + ' '
+ (query.match(/\".+?\"/g)
?.map(r => r.substr(1, r.length - 2))
.join(' ') || '');
return output;
}
export default function SearchPage() {
var [posts, setPosts] = useState<PostsInfo>({ posts: [], valid_tags: [] });
var [query, setQuery] = useState('-');
var [visiblePosts, setVisiblePosts] = useState<Array<Post>>([]);
var fuse = new Fuse(posts.posts, {
keys: [
'title',
'subtitle',
'author',
'date',
'id',
'tags',
],
isCaseSensitive: false,
});
useEffect(() => {
(async () => {
var query = new URLSearchParams(window.location.search).get('q') || '';
if (query) {
(document.getElementById('searchInput') as HTMLInputElement).value = query;
}
var posts = await fetch('/posts.json');
var postsJson: PostsInfo = await posts.json();
setPosts(postsJson);
setQuery(query);
})();
}, []);
useEffect(() => {
var search = searchFilter(query, posts.valid_tags);
if (search.query.length == 0) {
var results = posts.posts;
} else {
var fuseSearch = fuse.search(search.query);
var results = fuseSearch.map(res => res.item);
}
results = results.filter(result => {
for (var i in search.tags) {
if (!result.tags.includes(search.tags[i])) {
return false;
}
}
return true;
});
results = results.sort((a, b) => new Date(b.date).getTime() - new Date(a.date).getTime());
setVisiblePosts(results);
}, [query]);
return <div>
<div className='centeredPage'>
<div className='titleWrapper'>
<h1>Search for posts</h1>
</div>
<div className='navAreaWrapper'>
<div className='sticky'>
<Navbar page='search' />
</div>
</div>
<MobileNavbar />
<div className='contentWrapper'>
<SearchBar
searchFunction={() => {
setTimeout(() => setQuery((document.getElementById('searchInput') as HTMLInputElement).value));
}}
/>
<Posts posts={visiblePosts} />
</div>
</div>
</div>;
}
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