contentstack.js

import Stack from "./stack";
import CacheProvider from './cache-provider/index';
import ContentstackRegion from "./contentstackregion";

 /**
 * @class 
  Contentstack 
* @description Creates an instance of `Contentstack`.
* @instance
*/

class Contentstack {

	constructor(){
		/**
		 * @memberOf Contentstack
		 * @description CachePolicy contains different cache policies constants.
		 * @example
		 * Contentstack.CachePolicy.IGNORE_CACHE
		 * Contentstack.CachePolicy.ONLY_NETWORK
		 * Contentstack.CachePolicy.CACHE_ELSE_NETWORK
		 * Contentstack.CachePolicy.NETWORK_ELSE_CACHE
		 * Contentstack.CachePolicy.CACHE_THEN_NETWORK
		 */
		this.CachePolicy = CacheProvider.policies;
		this.Region = ContentstackRegion;
		
		this.Utils = require('@contentstack/utils');
	}

	/**

	* @memberOf Contentstack
	*/
	Stack(...stack_arguments){
		return new Stack(...stack_arguments);
	}

	updateAssetURL(entry) {
		// check if entry consist of _embedded_items object
		if (entry._embedded_items == undefined) {
			throw new Error("_embedded_items not present in entry. Call includeEmbeddedItems() before fetching entry.");
		}

		// Iterate through each object in _embedded_items and update the asset link
		for (let key in entry._embedded_items) {
			let embedded_item = entry._embedded_items[key];
			if (Array.isArray(embedded_item)) {

				embedded_item.forEach((item) => {

					if (item._content_type_uid == 'sys_assets' && item.filename) {

						let correspondingAsset;
						const x = (children) => {
							for (let i = 0; i < children.length; i++) {
								if (children[i].children && children[i].children.length) {
									x(children[i].children);
								}
								if (children[i].attrs && children[i].attrs['asset-uid'] === item.uid) {
									correspondingAsset = children[i].attrs;
									return;
								}
							}
						}
						let _entry = {...entry};
						const keys = key.split(".");
						for (const k of keys) {
							if (_entry[k]) _entry = _entry[k];
							else if (_entry.length) {
								for (const block of _entry) {
									if (block[k]) {
										_entry = block[k];
									}
								}
							}
						}
						if (_entry.children) x(_entry.children);
						if (correspondingAsset) {
							correspondingAsset['href'] = item.url;
						}
					}
				});
			}
		}
	}
}

module.exports = new Contentstack();