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import SubstringHighlight from './substring-highlight';
import Accordion from './accordion';
import Loader from './loader';
import Message from './message';
import SearchInput from './search-input';
import '../styles/components/accordion-search.scss';
export const getLeafKeys = (
item: AccordionItem[] | AccordionItem
): string[] | string => {
if (Array.isArray(item)) {
return item.flatMap((i) => getLeafKeys(i));
}
if (item.items) {
return getLeafKeys(item.items);
}
return item.id;
};
export const filterAccordionData = (
accordionData: AccordionItem[],
query: string
): AccordionItem[] => {
if (!query) {
return accordionData;
}
const result = [];
for (const item of accordionData) {
if (item.label.toLowerCase().includes(query)) {
result.push(item);
} else if (item.items?.length) {
const items = filterAccordionData(item.items, query);
if (items.length) {
result.push({ ...item, items });
}
}
}
return result;
};
export type AccordionItem = {
label: string;
id: string;
items?: AccordionItem[];
addAsterisk?: boolean;
};
type AccordionSearchItemProps = {
/**
* An array of objects which populates the list items
*/
items: AccordionItem[];
/**
* String used to fill in the search input when empty
*/
id: string;
/**
* Callback that is fired when an accordion's item is selected
*/
onSelect: (id: string) => unknown;
/**
* Array of the selected items' IDs
*/
selected: string[];
/**
* Indicates if the accordion should always be open
*/
alwaysOpen?: boolean;
/**
* Indicates if the item should initially be open ie the user can
* still collapse after intial load.
*/
initialOpen?: boolean;
/**
* A boolean indicating whether the component should span multiple
* columns: 2 columns for medium to 3 columns for large+ screens.
*/
columns?: boolean;
/**
* The title, works as a trigger to open/close
*/
label: string;
/**
* The user's query, passed to highlight in the item's label
*/
query: string;
/**
* Appends an asterisk to selected items (in the case of xrefs this indicates full xrefs)
*/
addAsterisk?: boolean;
};
const AccordionSearchCheckbox = ({
onSelect,
selected,
id,
label,
query,
addAsterisk,
}: Omit<AccordionSearchItemProps, 'items' | 'alwaysOpen' | 'columns'>) => (
<li key={id} className="accordion-search__list__item">
<label key={id} htmlFor={`checkbox-${id}`}>
<input
type="checkbox"
id={`checkbox-${id}`}
className="accordion-search__list__item-checkbox"
onChange={() => {
onSelect(id);
}}
checked={selected.includes(id)}
/>
<SubstringHighlight substring={query}>{label}</SubstringHighlight>
{addAsterisk && selected.includes(id) ? '*' : ''}
</label>
</li>
);
const AccordionSearchItem = ({
label,
alwaysOpen,
items,
selected,
columns,
onSelect,
id,
query,
addAsterisk,
initialOpen = false,
}: AccordionSearchItemProps) => {
const itemKeys = useMemo(() => new Set(getLeafKeys(items)), [items]);
const count = selected.filter((s) => itemKeys.has(s)).length;
const areChildrenCheckboxes = items.every((item) => !item.items);
return (
<Accordion
accordionTitle={
<SubstringHighlight substring={query}>{label}</SubstringHighlight>
}
count={count}
alwaysOpen={alwaysOpen}
key={id}
initialOpen={initialOpen}
>
{areChildrenCheckboxes ? (
<ul
className={`no-bullet accordion-search__list${
columns ? ' accordion-search__list--columns' : ''
}`}
>
{items.map((item) => (
<AccordionSearchCheckbox
label={item.label}
selected={selected}
onSelect={onSelect}
id={item.id}
key={item.id}
query={query}
addAsterisk={item.addAsterisk}
/>
))}
</ul>
) : (
<ul className="no-bullet accordion-search__list">
{items.map(
(item) =>
item.items?.length && (
<AccordionSearchItem
label={item.label}
alwaysOpen={alwaysOpen}
items={item.items}
selected={selected}
columns={columns}
onSelect={onSelect}
id={item.id}
key={item.id}
query={query}
addAsterisk={addAsterisk}
/>
)
)}
</ul>
)}
</Accordion>
);
};
type AccordionSearchProps = {
/**
* An array of objects each of which is used to populate an accordion.
*/
accordionData: AccordionItem[];
/**
* String used to fill in the search input when empty
*/
placeholder?: string;
/**
* Callback that is fired when an accordion's item is selected
*/
onSelect: (itemId: string) => unknown;
/**
* Array of the selected items' IDs
*/
selected: string[];
/**
* A boolean indicating whether the component should span multiple
* columns: 2 columns for medium to 3 columns for large+ screens.
*/
columns?: boolean;
};
const AccordionSearch = ({
accordionData,
placeholder = '',
onSelect,
selected,
columns,
}: AccordionSearchProps) => {
const [inputValue, setInputValue] = useState('');
const deferredInputValue = useDeferredValue(inputValue);
const filteredAccordionData = useMemo(
() =>
filterAccordionData(
accordionData,
deferredInputValue.trim().toLowerCase()
),
[accordionData, deferredInputValue]
);
const handleSearchInputChange = useCallback(
(event: React.ChangeEvent<HTMLInputElement>) => {
setInputValue(event.target.value);
},
[]
);
Iif (!accordionData || !accordionData.length) {
return <Loader />;
}
const accordionGroupNode = filteredAccordionData.length ? (
filteredAccordionData.map(
({ label, id, items, addAsterisk }, index) =>
items?.length && (
<AccordionSearchItem
label={label}
initialOpen={index === 0}
alwaysOpen={Boolean(deferredInputValue)}
items={items}
selected={selected}
columns={columns}
onSelect={onSelect}
id={id}
key={id}
query={deferredInputValue}
addAsterisk={addAsterisk}
/>
)
)
) : (
<Message level="failure">No matches found</Message>
);
return (
<>
<SearchInput
value={inputValue}
onChange={handleSearchInputChange}
placeholder={placeholder}
/>
{accordionGroupNode}
</>
);
};
export default AccordionSearch;
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