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website/src/client/DomandeEsamiCourse.tsx

121 lines
4.0 KiB
TypeScript

import { useEffect, useState } from 'preact/hooks'
import { Funnel } from '@phosphor-icons/react'
import { marked } from 'marked'
// @ts-ignore
import extendedLatex from 'marked-extended-latex'
marked.use(
extendedLatex({
lazy: false,
render: (formula: string, display: boolean) => {
return display ? '$$' + formula + '$$' : '$' + formula + '$'
},
}),
)
import type { Database } from '@/data/domande-esami.yaml'
const useRemoteValue = <T,>(url: string): T | null => {
const [value, setValue] = useState<T | null>(null)
useEffect(() => {
fetch(url)
.then(response => response.json())
.then(value => setValue(value))
.catch(error => console.error(error))
}, [url])
return value
}
type Props = {
course: string
}
export const DomandeEsamiCourse = ({ course }: Props) => {
const database = useRemoteValue<Database>(`/domande-esami/api/${course}.json`)
if (!database) {
return <>Loading...</>
}
if ('requestIdleCallback' in window) {
// @ts-ignore
requestIdleCallback(() => window.renderMath())
} else {
// @ts-ignore
setTimeout(() => window.renderMath(), 100)
}
const courseTags = [
...new Set(
database.questions.filter(question => question.course === course).flatMap(question => question.tags),
),
]
const [selectedTag, setSelectedTag] = useState<string | null>(null)
const filteredQuestions = database.questions
.filter(question => question.course === course)
.filter(question => (selectedTag ? question.tags.includes(selectedTag) : true))
return (
<>
<div class="grid-center">
<h3>
<a href="/domande-esami">Domande Esami</a>
</h3>
<h1>{database.names[course]}</h1>
</div>
{courseTags.length > 1 && (
<div class="card filter">
<div class="grid-h">
<Funnel />
<strong>Filtra Tag</strong>
</div>
<div class="flex-row-wrap">
{!selectedTag
? courseTags.map(tag => (
<div class="chip clickable" onClick={() => setSelectedTag(tag)}>
{tag}
</div>
))
: courseTags.map(tag => (
<div
class={tag === selectedTag ? 'chip clickable' : 'chip clickable disabled'}
onClick={() => setSelectedTag(tag === selectedTag ? null : tag)}
>
{tag}
</div>
))}
</div>
</div>
)}
<div class="wide-card-list" id="questions">
{filteredQuestions.length === 0 ? (
<div class="grid-center">
<em>No questions found</em>
</div>
) : (
filteredQuestions.map(question => (
<div class="card">
<div
class="text"
dangerouslySetInnerHTML={{
__html: marked(question.content, { async: false }),
}}
/>
<div class="metadata">
{question.tags.map(tag => (
<div class="chip small">{tag}</div>
))}
</div>
</div>
))
)}
</div>
</>
)
}