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{{- $searchData := resources.Get "search-data.js" | resources.ExecuteAsTemplate "search-data.js" . | resources.Minify | resources.Fingerprint }}
(function() {
const input = document.querySelector("#book-search-input");
const results = document.querySelector("#book-search-results");
input.addEventListener("focus", init);
input.addEventListener("keyup", search);
function init() {
input.removeEventListener("focus", init); //init once
input.required = true;
loadScript("{{ "lunr.min.js" | relURL }}");
loadScript("{{ $searchData.RelPermalink }}", function() {
input.readOnly = false;
input.required = false;
search();
});
}
function search() {
while (results.firstChild) {
results.removeChild(results.firstChild);
}
if (!input.value) {
return;
}
const terms = lunr.tokenizer(input.value);
const searchHits = window.bookSearch.idx.query(function(query) {
query.term(terms, {
boost: 100
});
query.term(terms, {
boost: 10,
wildcard: lunr.Query.wildcard.LEADING | lunr.Query.wildcard.TRAILING
});
query.term(terms, {
editDistance: 2
});
});
searchHits.slice(0, 10).forEach(function(hit) {
const page = window.bookSearch.pages[hit.ref];
const li = document.createElement("li"),
a = li.appendChild(document.createElement("a"));
a.href = page.href;
a.textContent = page.title;
results.appendChild(li);
});
}
function loadScript(src, callback) {
const script = document.createElement("script");
script.defer = true;
script.src = src;
script.onload = callback;
document.head.append(script);
}
})();
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