All files / src use-search.js

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
import Fuse from 'fuse.js'
import {graphql, useStaticQuery} from 'gatsby'
import path from 'path'
import React from 'react'
 
function useSearch(query) {
  const data = useStaticQuery(graphql`
    {
      allMdx {
        nodes {
          fileAbsolutePath
          frontmatter {
            title
          }
          rawBody
          parent {
            ... on File {
              relativeDirectory
              name
            }
          }
        }
      }
    }
  `)
 
  const list = React.useMemo(
    () =>
      data.allMdx.nodes.map(node => ({
        path: path.join(
          node.parent.relativeDirectory,
          node.parent.name === 'index' ? '/' : node.parent.name,
        ),
        title: node.frontmatter.title,
        rawBody: node.rawBody,
      })),
    [data],
  )
 
  const fuse = React.useMemo(
    () =>
      new Fuse(list, {
        threshold: 0.2,
        keys: ['title', 'rawBody'],
        tokenize: true,
      }),
    [list],
  )
 
  const [results, setResults] = React.useState(list)
 
  React.useEffect(() => {
    if (query) {
      setResults(fuse.search(query).slice(0, 20)) // Return top 20 results
    } else {
      setResults(list)
    }
  }, [query, fuse, list])
 
  return results
}
 
export default useSearch