Prowlarr/src/UI/Mixins/AutoComplete.js

var $ = require('jquery');
require('typeahead');

$.fn.autoComplete = function(options) {
    if (!options) {
        throw 'options are required';
    }

    if (!options.resource) {
        throw 'resource is required';
    }

    if (!options.query) {
        throw 'query is required';
    }

    $(this).typeahead({
        hint      : true,
        highlight : true,
        minLength : 3,
        items     : 20
    }, {
        name       : options.resource.replace('/'),
        displayKey : '',
        source     : function(filter, callback) {
            var data = options.data || {};
            data[options.query] = filter;
            $.ajax({
                url      : window.NzbDrone.ApiRoot + options.resource,
                dataType : 'json',
                type     : 'GET',
                data     : data,
                success  : function(response) {
                    if (options.filter) {
                        options.filter.call(this, filter, response, callback);
                    } else {
                        var matches = [];

                        $.each(response, function(i, d) {
                            if (d[options.query] && d[options.property].startsWith(filter)) {
                                matches.push({ value : d[options.property] });
                            }
                        });

                        callback(matches);
                    }
                }
            });
        }
    });
};