91 lines
2.9 KiB
JavaScript
91 lines
2.9 KiB
JavaScript
// Copyright (c) 2018 Dominic Masters
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//
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// MIT License
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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const fs = require('fs');
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const CONFIG_PATH = './private/data/config.json';// TODO: Set this a... better way?
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class Configuration {
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constructor(app) {
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this.app = app;
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this.data = {};
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this.isHeroku = false;
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}
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getApp() { return this.app; }
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async loadConfig(path) {
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//First we need to check if this is Heroku or not...
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let processVariabels = process.env;
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this.isHeroku = (
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processVariabels && processVariabels.NODE_HOME &&
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processVariabels.NODE_HOME.indexOf("heroku") !== -1
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);
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//Read config data
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if(this.isHeroku) {
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this.data = processVariabels;
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} else {
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//TODO: Rather than use readSync, convert the whole function to async and use a library like fs-extra for async?
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let dataRaw = fs.readFileSync(CONFIG_PATH, 'utf8');
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let data = JSON.parse(dataRaw);
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if(!data) throw new Error("Failed to parse Config JSON! Check for an error and try again.");
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this.data = data;
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}
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}
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has(key) {
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let value = this.get(key);
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if(typeof value === typeof undefined) return false;
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if(!value) return false;
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return value.length !== 0;
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}
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get(key) {
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if(this.isHeroku) {
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key = key.replace(/\./g, '_').toUpperCase();
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if(typeof this.data[key] === typeof undefined) return null;
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return this.data[key];
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}
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return this.getRecursive(key.split("."));
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}
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getRecursive(key_array, data_obj) {
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if(typeof data_obj === typeof undefined) data_obj = this.data;
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if(typeof data_obj === typeof undefined) return null;
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let k = key_array[0];
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let o = data_obj[k];
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if(typeof o === typeof undefined) return null;
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//Awesome
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if(key_array.length > 1) {
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if(typeof o !== typeof {}) return null;
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key_array.shift();
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return this.getRecursive(key_array, o);
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}
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return o;
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}
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}
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module.exports = Configuration;
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