102 lines
1.7 KiB
JavaScript
102 lines
1.7 KiB
JavaScript
let schemas = require('@kosmos/schemas');
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schemas['expense'] = require('@kosmos/schemas/schemas/expense.json');
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const validator = require('../utils/validator');
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/**
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* Serialization and validation for JSON-LD document of the Expense
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*
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* @class
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* @public
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*/
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class Expense {
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constructor (attrs) {
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Object.keys(attrs).forEach(a => this[a] = attrs[a]);
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}
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/**
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* Serialize object to JSON
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*
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* @public
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*/
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serialize () {
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// Write it pretty to ipfs
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return JSON.stringify(this.data, null, 2);
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}
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get data () {
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let {
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title,
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description,
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currency,
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amount,
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date,
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url,
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tags,
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details,
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} = this;
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let data = {
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'@context': 'https://schema.kosmos.org',
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'@type': 'Expense',
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title,
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description,
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currency,
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amount,
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date,
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'tags': tags || [],
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'details': details || {},
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};
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if (url) {
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data['url'] = url;
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}
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return data;
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}
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/**
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* Validate serialized data against schema
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*
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* @public
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*/
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validate () {
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const serialized = JSON.parse(this.serialize());
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const valid = validator.validate(serialized, schemas['expense']);
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return valid ? Promise.resolve() : Promise.reject(validator.error);
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}
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/**
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* Deserialize JSON to object
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*
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* @public
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*/
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static deserialize (serialized) {
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let {
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title,
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description,
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currency,
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amount,
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date,
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url,
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tags,
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details,
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} = JSON.parse(serialized.toString('utf8'));
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return {
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title,
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description,
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currency,
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amount,
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date,
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url,
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tags,
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details,
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ipfsData: serialized,
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};
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}
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}
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module.exports = Expense;
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