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var lunrIndex, pagesIndex;
function endsWith(str, suffix) {
return str.indexOf(suffix, str.length - suffix.length) !== -1;
}
// Initialize lunrjs using our generated index file
function initLunr(success_callback) {
if (!endsWith(baseurl,"/")){
baseurl = baseurl+'/'
};
// First retrieve the index file
$.getJSON(baseurl +"index.json")
.done(function(index) {
pagesIndex = index;
// Set up lunrjs by declaring the fields we use
// Also provide their boost level for the ranking
lunrIndex = new lunr.Index;
lunrIndex.ref("uri");
lunrIndex.field('title', {
boost: 15
});
lunrIndex.field('tags', {
boost: 10
});
lunrIndex.field("content", {
boost: 5
});
// Feed lunr with each file and let lunr actually index them
pagesIndex.forEach(function(page) {
lunrIndex.add(page);
});
lunrIndex.pipeline.remove(lunrIndex.stemmer)
success_callback();
})
.fail(function(jqxhr, textStatus, error) {
var err = textStatus + ", " + error;
console.error("Error getting Hugo index file:", err);
});
}
/**
* Trigger a search in lunr and transform the result
*
* @param {String} query
* @return {Array} results
*/
function search(query) {
// Find the item in our index corresponding to the lunr one to have more info
return lunrIndex.search(query).map(function(result) {
return pagesIndex.filter(function(page) {
return page.uri === result.ref;
})[0];
});
}
function configure_completion() {
var searchList = new autoComplete({
/* selector for the search box element */
selector: $("#search-by").get(0),
/* source is the callback to perform the search */
source: function(term, response) {
response(search(term));
},
/* renderItem displays individual search results */
renderItem: function(item, term) {
var numContextWords = 2;
var text = item.content.match(
"(?:\\s?(?:[\\w]+)\\s?){0,"+numContextWords+"}" +
term+"(?:\\s?(?:[\\w]+)\\s?){0,"+numContextWords+"}");
item.context = text;
return '<div class="autocomplete-suggestion" ' +
'data-term="' + term + '" ' +
'data-title="' + item.title + '" ' +
'data-uri="'+ item.uri + '" ' +
'data-context="' + item.context + '">' +
item.title +
'<div class="context">' +
(item.context || '') +'</div>' +
'</div>';
},
/* onSelect callback fires when a search suggestion is chosen */
onSelect: function(e, term, item) {
console.log(item.getAttribute('data-val'));
location.href = item.getAttribute('data-uri');
}
});
};
$( document ).ready(function() {
// configure lazy loading of the search database
$("#search-by").focusin(function() {
// download and initialize the index only once
if (typeof lunrIndex == 'undefined') {
initLunr(configure_completion);
}
});
});
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