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popularities.js
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popularities.js
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// Copyright 2021 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
'use strict';
const fs = require('fs');
const { downloadPopularities } = require('./updateData.js');
const { getFile } = require('./utils.js');
class popularities {
constructor(category, options = {}) {
this._sourcePath = 'popularities.json';
if (options.source) { this._sourcePath = options.source }
this._popularities = this._loadPopularities(category);
}
_loadPopularities(filter) {
if (!fs.existsSync(this._sourcePath)) {
downloadPopularities();
}
const source = getFile(this._sourcePath);
let someData = source.split(',');
someData.shift();
someData.pop();
if (!filter) { return someData; }
return someData.filter(f => {
return f.includes(filter);
});
}
get rawData() {
return this._popularities;
}
getRating(key) {
let val = this._popularities.find(f => {
return f.includes(key);
});
if (val) {
val = val.split(":")[1];
val = val.trim();
} else {
val = 0;
}
return Number(val);
}
}
module.exports.Popularities = popularities;