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import * as lunr from 'js/lib/lunr.js';
import { Highlight } from 'js/helpers';
function nextUntil(elem, selector) {
var siblings = [];
elem = elem.nextElementSibling;
while (elem) {
if (elem.matches(selector)) break;
siblings.push(elem);
elem = elem.nextElementSibling;
}
return siblings;
}
export function newSearchController() {
var index;
var buildIndex = function (config) {
var builder = new lunr.Builder();
builder.pipeline.add(lunr.trimmer, lunr.stopWordFilter, lunr.stemmer);
builder.searchPipeline.add(lunr.stemmer);
config.call(builder, builder);
return builder.build();
};
function populateIndex() {
index = buildIndex(function () {
this.ref('id');
this.field('title', { boost: 10 });
this.field('body');
this.pipeline.add(lunr.trimmer, lunr.stopWordFilter);
document.querySelectorAll('h1, h2').forEach((headerEl) => {
let body = '';
nextUntil(headerEl, 'h1, h2').forEach((el) => {
body = body.concat(' ', el.textContent);
});
this.add({
id: headerEl.id,
title: headerEl.textContent,
body: body,
});
});
});
}
let highlight = new Highlight();
return {
query: '',
results: [],
init: function () {
return this.$nextTick(() => {
populateIndex();
this.$watch('query', () => {
this.search();
});
});
},
search: function () {
highlight.remove();
let results = index.search(this.query).filter((item) => item.score > 0.0001);
this.results = results.map((item) => {
var elem = document.getElementById(item.ref);
return {
title: elem.innerText,
};
});
if (this.results.length > 0) {
highlight.apply(new RegExp(this.query, 'i'));
}
},
};
}
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