File size: 4,011 Bytes
4e1096a
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
'use client';

import '@assistant-ui/react-markdown/styles/dot.css';

import {
  type CodeHeaderProps,
  MarkdownTextPrimitive,
  unstable_memoizeMarkdownComponents as memoizeMarkdownComponents,
  useIsMarkdownCodeBlock,
} from '@assistant-ui/react-markdown';
import remarkGfm from 'remark-gfm';
import { type FC, memo, useState } from 'react';
import { CheckIcon, CopyIcon } from 'lucide-react';

import { TooltipIconButton } from './TooltipIconButton';
import { cn } from '@/utils/tailwind';

const MarkdownTextImpl = () => {
  return (
    <MarkdownTextPrimitive
      remarkPlugins={[remarkGfm]}
      className='aui-md'
      components={defaultComponents}
    />
  );
};

export const MarkdownText = memo(MarkdownTextImpl);

const CodeHeader: FC<CodeHeaderProps> = ({ language, code }) => {
  const { isCopied, copyToClipboard } = useCopyToClipboard();
  const onCopy = () => {
    if (!code || isCopied) return;
    copyToClipboard(code);
  };

  return (
    <div className='bg-muted text-foreground mt-4 flex items-center justify-between gap-4 rounded-t-lg px-4 py-2 text-sm font-semibold'>
      <span className='lowercase [&>span]:text-xs'>{language}</span>
      <TooltipIconButton tooltip='Copy' onClick={onCopy}>
        {!isCopied && <CopyIcon className='size-3' />}
        {isCopied && <CheckIcon className='size-3' />}
      </TooltipIconButton>
    </div>
  );
};

const useCopyToClipboard = ({ copiedDuration = 3000 }: { copiedDuration?: number } = {}) => {
  const [isCopied, setIsCopied] = useState<boolean>(false);

  const copyToClipboard = (value: string) => {
    if (!value) return;

    navigator.clipboard.writeText(value).then(() => {
      setIsCopied(true);
      setTimeout(() => setIsCopied(false), copiedDuration);
    });
  };

  return { isCopied, copyToClipboard };
};

const defaultComponents = memoizeMarkdownComponents({
  h1: ({ className, ...props }) => (
    // eslint-disable-next-line jsx-a11y/heading-has-content
    <h1
      className={cn('mb-4 scroll-m-20 text-2xl font-bold tracking-tight last:mb-0', className)}
      {...props}
    />
  ),
  h2: ({ className, ...props }) => (
    // eslint-disable-next-line jsx-a11y/heading-has-content
    <h2
      className={cn(
        'mb-3 mt-6 scroll-m-20 text-xl font-semibold tracking-tight first:mt-0 last:mb-0',
        className,
      )}
      {...props}
    />
  ),
  h3: ({ className, ...props }) => (
    // eslint-disable-next-line jsx-a11y/heading-has-content
    <h3
      className={cn(
        'mb-2 mt-4 scroll-m-20 text-lg font-semibold tracking-tight first:mt-0 last:mb-0',
        className,
      )}
      {...props}
    />
  ),
  p: ({ className, ...props }) => (
    <p className={cn('mb-3 leading-7 first:mt-0 last:mb-0', className)} {...props} />
  ),
  a: ({ className, ...props }) => (
    // eslint-disable-next-line jsx-a11y/anchor-has-content
    <a
      className={cn('text-primary font-medium underline underline-offset-4', className)}
      {...props}
    />
  ),
  blockquote: ({ className, ...props }) => (
    <blockquote className={cn('border-l-2 pl-4 italic', className)} {...props} />
  ),
  ul: ({ className, ...props }) => (
    <ul className={cn('my-3 ml-6 list-disc [&>li]:mt-1', className)} {...props} />
  ),
  ol: ({ className, ...props }) => (
    <ol className={cn('my-3 ml-6 list-decimal [&>li]:mt-1', className)} {...props} />
  ),
  hr: ({ className, ...props }) => <hr className={cn('my-4 border-b', className)} {...props} />,
  pre: ({ className, ...props }) => (
    <pre
      className={cn(
        'overflow-x-auto rounded-b-lg rounded-t-none bg-zinc-900 p-4 text-sm text-zinc-100',
        className,
      )}
      {...props}
    />
  ),
  code: function Code({ className, ...props }) {
    const isCodeBlock = useIsMarkdownCodeBlock();
    return (
      <code
        className={cn(
          !isCodeBlock && 'bg-muted rounded border px-1 py-0.5 font-mono text-sm',
          className,
        )}
        {...props}
      />
    );
  },
  CodeHeader,
});