88 lines
1.8 KiB
JavaScript
88 lines
1.8 KiB
JavaScript
import uuid from 'uuid/v4';
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import {compose, merge, Property} from '@avocado/core';
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const decorate = compose(
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Property('instanceUuid'),
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Property('uri'),
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Property('uuid'),
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)
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export class Resource extends decorate(class {}) {
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static load(uri) {
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return this.read(uri).then((json) => {
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return new this(json);
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});
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}
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static read(uri) {
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if (!this.readCache) {
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this.readCache = {};
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}
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if (this.readCache[uri]) {
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return this.readCache[uri].then((json) => {
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return JSON.parse(JSON.stringify(json));
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});
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}
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if ('undefined' !== typeof window) {
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this.readCache[uri] = fetch(uri).then((response) => {
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return response.json();
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});
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}
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else {
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this.readCache[uri] = new Promise((resolve, reject) => {
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const fs = require('fs');
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const path = require('path');
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const resourcePath = path.resolve(process.cwd(), 'resource');
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fs.readFile(`${resourcePath}${uri}`, (error, buffer) => {
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if (error) {
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return reject(error);
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}
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resolve(JSON.parse(buffer.toString('utf8')));
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});
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});
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}
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// Allow "base" JSON.
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return this.readCache[uri].then((json) => {
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if ('undefined' !== typeof json.base) {
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return this.read(json.base).then((baseJSON) => {
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return merge({}, baseJSON, json);
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});
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}
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return json;
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});
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}
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static uuid() {
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return uuid();
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}
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constructor() {
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super();
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this.instanceUuid = Resource.uuid();
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}
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fromJSON({uri, uuid}) {
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if (uri) {
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this.uri = uri;
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}
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if (uuid) {
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this.uuid = uuid;
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}
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return this;
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}
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regenerateUuid() {
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this.uuid = Resource.uuid();
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}
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toJSON() {
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return {
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uuid: this.uuid,
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uri: this.uri,
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};
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}
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}
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