Markdown.svelte

<script lang="ts">
	import { onMount } from 'svelte';
	import { marked } from 'marked';
	import type { Token } from 'marked';

	import {
		replaceTokens,
		revertSanitizedResponseContent,
		sanitizeResponseContent,
		unescapeHtml
	} from '$lib/utils';
	import CodeBlock from '$lib/components/chat/Messages/CodeBlock.svelte';
	import MarkdownInlineTokens from '$lib/components/chat/Messages/MarkdownInlineTokens.svelte';
	import { user } from '$lib/stores';

	export let id: string;
	export let tokens: Token[];
	export let model = null;
	export let content = '';
	export let top = true;

	$: tokens = marked.lexer(
		replaceTokens(sanitizeResponseContent(content), model?.name, $user?.name)
	);

	const headerComponent = (depth: number) => {
		return 'h' + depth;
	};

	onMount(() => {
		console.log('MarkdownTokens', id, tokens, top);
	});
</script>

{#each tokens as token, tokenIdx}
	{#if token.type === 'hr'}
		<hr />
	{:else if token.type === 'heading'}
		<svelte:element this={headerComponent(token.depth)}>
			<MarkdownInlineTokens id={`${id}-${tokenIdx}-h`} tokens={token.tokens} />
		</svelte:element>
	{:else if token.type === 'code'}
		<CodeBlock
			{id}
			lang={token?.lang ?? ''}
			code={revertSanitizedResponseContent(token?.text ?? '')}
		/>
	{:else if token.type === 'table'}
		<table>
			<thead>
				<tr>
					{#each token.header as header, headerIdx}
						<th style={token.align[headerIdx] ? '' : `text-align: ${token.align[headerIdx]}`}>
							<MarkdownInlineTokens
								id={`${id}-${tokenIdx}-header-${headerIdx}`}
								tokens={header.tokens}
							/>
						</th>
					{/each}
				</tr>
			</thead>
			<tbody>
				{#each token.rows as row, rowIdx}
					<tr>
						{#each row ?? [] as cell, cellIdx}
							<td style={token.align[cellIdx] ? '' : `text-align: ${token.align[cellIdx]}`}>
								<MarkdownInlineTokens
									id={`${id}-${tokenIdx}-row-${rowIdx}-${cellIdx}`}
									tokens={cell.tokens}
								/>
							</td>
						{/each}
					</tr>
				{/each}
			</tbody>
		</table>
	{:else if token.type === 'blockquote'}
		<blockquote>
			<svelte:self id={`${id}-${tokenIdx}`} tokens={token.tokens} />
		</blockquote>
	{:else if token.type === 'list'}
		{#if token.ordered}
			<ol start={token.start || 1}>
				{#each token.items as item, itemIdx}
					<li>
						<svelte:self
							id={`${id}-${tokenIdx}-${itemIdx}`}
							tokens={item.tokens}
							top={token.loose}
						/>
					</li>
				{/each}
			</ol>
		{:else}
			<ul>
				{#each token.items as item, itemIdx}
					<li>
						<svelte:self
							id={`${id}-${tokenIdx}-${itemIdx}`}
							tokens={item.tokens}
							top={token.loose}
						/>
					</li>
				{/each}
			</ul>
		{/if}
	{:else if token.type === 'html'}
		{@html token.text}
	{:else if token.type === 'paragraph'}
		<p>
			<MarkdownInlineTokens id={`${id}-${tokenIdx}-p`} tokens={token.tokens ?? []} />
		</p>
	{:else if token.type === 'text'}
		{#if top}
			<p>
				{#if token.tokens}
					<MarkdownInlineTokens id={`${id}-${tokenIdx}-t`} tokens={token.tokens} />
				{:else}
					{unescapeHtml(token.text)}
				{/if}
			</p>
		{:else if token.tokens}
			<MarkdownInlineTokens id={`${id}-${tokenIdx}-p`} tokens={token.tokens ?? []} />
		{:else}
			{unescapeHtml(token.text)}
		{/if}
	{:else if token.type === 'space'}
		{''}
	{:else}
		{console.log('Unknown token', token)}
	{/if}
{/each}