52 lines
933 B
TypeScript
52 lines
933 B
TypeScript
import {Document} from 'flexsearch'
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export interface withId {
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id: number,
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}
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const indexes: { [k: string]: Document<withId> } = {}
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export const createNewIndexer = (name: string, fieldsToIndex: string[]) => {
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if (typeof indexes[name] === 'undefined') {
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indexes[name] = new Document<withId>({
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tokenize: 'full',
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document: {
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id: 'id',
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index: fieldsToIndex,
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},
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})
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}
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const index = indexes[name]
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function add(item: withId) {
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return index.add(item.id, item)
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}
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function remove(item: withId) {
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return index.remove(item.id)
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}
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function update(item: withId) {
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return index.update(item.id, item)
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}
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function search(query: string | null) {
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if (query === '' || query === null) {
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return null
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}
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return index.search(query)
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?.flatMap(r => r.result)
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.filter((value, index, self) => self.indexOf(value) === index) as number[]
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|| null
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}
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return {
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add,
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remove,
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update,
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search,
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}
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}
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