| 1 | import { dataText } from './Accessors';
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| 2 | import { useMemo } from 'react';
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| 3 | export const presets = {
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| 4 | eq: (a, b) => a === b,
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| 5 | contains: (a, b) => a.indexOf(b) !== -1,
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| 6 | startsWith: (a, b) => a.lastIndexOf(b, 0) === 0
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| 7 | };
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| 8 |
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| 9 | function normalizeFilter(filter, textField) {
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| 10 | if (filter === false) return null;
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| 11 | if (typeof filter === 'function') return filter;
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| 12 | const filterPreset = presets[filter === true ? 'startsWith' : filter || 'eq'];
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| 13 | return (item, searchTerm) => {
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| 14 | let textValue = dataText(item, textField);
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| 15 | return filterPreset(textValue.toLowerCase(), searchTerm.toLowerCase());
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| 16 | };
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| 17 | }
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| 18 |
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| 19 | export function useFilteredData(data, filterer, searchTerm = '', textAccessor) {
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| 20 | return useMemo(() => {
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| 21 | const filter = normalizeFilter(filterer, textAccessor);
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| 22 | if (!filter || !searchTerm.trim()) return data;
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| 23 | return data.filter((item, idx) => filter(item, searchTerm, idx));
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| 24 | }, [data, filterer, searchTerm, textAccessor]);
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| 25 | } |
| \ | No newline at end of file |