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import fs from 'fs-extra';
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import { UserConfiguration, UserConfigTypeChecker } from 'ass';
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/**
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* Returns a boolean if the provided value is a number
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*/
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const numChecker = (val: string) => {
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try { parseInt(val); return true; }
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catch (err) { return false; }
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}
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/**
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* User-config property type checker functions
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*/
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const Checkers: UserConfigTypeChecker = {
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uploadsDir: (val) => {
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try { fs.accessSync(val); return true; }
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catch (err) { return false; }
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},
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idType: (val) => {
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const options = ['random', 'original', 'gfycat', 'timestamp', 'zws'];
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return options.includes(val);
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},
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idSize: numChecker,
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gfySize: numChecker,
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maximumFileSize: numChecker,
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}
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export class UserConfig {
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private config: UserConfiguration;
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public getConfig = () => this.config;
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constructor(config?: UserConfiguration) {
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if (config != null) this.config = this.parseConfig(config);
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}
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private parseConfig(config: UserConfiguration) {
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if (!Checkers.uploadsDir(config.uploadsDir)) throw new Error(`Unable to access uploads directory: ${config.uploadsDir}`);
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if (!Checkers.idType(config.idType)) throw new Error(`Invalid ID type: ${config.idType}`);
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if (!Checkers.idSize(config.idSize)) throw new Error(`Invalid ID size: ${config.idSize}`);
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if (!Checkers.gfySize(config.gfySize)) throw new Error(`Invalid Gfy size: ${config.gfySize}`);
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if (!Checkers.maximumFileSize(config.maximumFileSize)) throw new Error(`Invalid maximum file size: ${config.maximumFileSize}`);
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// All is fine, carry on!
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return config;
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}
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}
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