109 lines
3.0 KiB
JavaScript
109 lines
3.0 KiB
JavaScript
/* global API_METHODS styleManager */
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'use strict';
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(() => {
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// toLocaleLowerCase cache, autocleared after 1 minute
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const cache = new Map();
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// top-level style properties to be searched
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const PARTS = {
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name: searchText,
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url: searchText,
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sourceCode: searchText,
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sections: searchSections,
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};
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/**
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* @param params
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* @param {string} params.query - 1. url:someurl 2. text (may contain quoted parts like "qUot Ed")
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* @param {number[]} [params.ids] - if not specified, all styles are searched
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* @returns {number[]} - array of matched styles ids
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*/
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API_METHODS.searchDB = ({query, ids}) => {
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let rx, words, icase, matchUrl;
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query = query.trim();
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if (/^url:/i.test(query)) {
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matchUrl = query.slice(query.indexOf(':') + 1).trim();
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if (matchUrl) {
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return styleManager.getStylesInfoByUrl(matchUrl)
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.then(styles => styles.map(style => style.id));
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}
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}
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if (query.startsWith('/') && /^\/(.+?)\/([gimsuy]*)$/.test(query)) {
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rx = tryRegExp(RegExp.$1, RegExp.$2);
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}
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if (!rx) {
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words = query
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.split(/(".*?")|\s+/)
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.filter(Boolean)
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.map(w => w.startsWith('"') && w.endsWith('"')
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? w.slice(1, -1)
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: w)
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.filter(w => w.length > 1);
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words = words.length ? words : [query];
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icase = words.some(w => w === lower(w));
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}
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const results = [];
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return styleManager.getAllStyles(styles => {
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if (ids) {
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const idSet = new Set(ids);
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return styles.filter(s => idSet.has(s.id));
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}
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return styles;
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})
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.then(styles => {
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for (const style of styles) {
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const id = style.id;
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if (!query || words && !words.length) {
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results.push(id);
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continue;
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}
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for (const part in PARTS) {
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const text = style[part];
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if (text && PARTS[part](text, rx, words, icase)) {
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results.push(id);
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break;
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}
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}
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}
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if (cache.size) debounce(clearCache, 60e3);
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return results;
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});
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};
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function searchText(text, rx, words, icase) {
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if (rx) return rx.test(text);
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for (let pass = 1; pass <= (icase ? 2 : 1); pass++) {
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if (words.every(w => text.includes(w))) return true;
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text = lower(text);
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}
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}
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function searchSections(sections, rx, words, icase) {
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for (const section of sections) {
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for (const prop in section) {
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const value = section[prop];
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if (typeof value === 'string') {
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if (searchText(value, rx, words, icase)) return true;
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} else if (Array.isArray(value)) {
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if (value.some(str => searchText(str, rx, words, icase))) return true;
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}
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}
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}
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}
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function lower(text) {
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let result = cache.get(text);
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if (result) return result;
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result = text.toLocaleLowerCase();
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cache.set(text, result);
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return result;
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}
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function clearCache() {
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cache.clear();
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}
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})();
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