@botonic/plugin-contentful/lib/esm/contentful/multi-environment.js

## What Does This Plugin Do?

import { MultiContextCms } from '../cms/cms-multilocale';
import { shallowClone } from '../util';
import { Contentful } from './cms-contentful';
/**
 * Set it to ContentfulOptions.contentfulFactory to connect to
 * different Contentful environments depending on the Context's Locale
 * for each call to CMS
 */
export function multiEnvironmentFactory(environmentByLocale) {
    const multiFactory = new MultiEnvironmentFactory(environmentByLocale);
    return contOptions => new MultiContextCms((ctx) => multiFactory.get(contOptions, ctx));
}
/**
 * Creates a different Contentful environments for each configured Locale.
 * When the call to CMS does not specify a locale, it uses the credentials from
 * ContentfulOptions and it informs through the logger
 */
export class MultiEnvironmentFactory {
    constructor(environmentByLocale, contentfulFactory = (o) => new Contentful(o), logger = console.error) {
        this.environmentByLocale = environmentByLocale;
        this.contentfulFactory = contentfulFactory;
        this.logger = logger;
        this.cache = new Map();
    }
    get(contOptions, ctx) {
        const credentials = this.getCredentials(ctx);
        if (!credentials) {
            if (!this.defaultCms) {
                this.defaultCms = this.contentfulFactory(contOptions);
            }
            return this.defaultCms;
        }
        const locale = ctx.locale;
        let cms = this.cache.get(locale);
        if (!cms) {
            const opts = shallowClone(contOptions);
            opts.spaceId = credentials.spaceId;
            opts.environment = credentials.environment;
            opts.accessToken = credentials.accessToken;
            cms = this.contentfulFactory(opts);
            this.cache.set(locale, cms);
        }
        return cms;
    }
    getCredentials(ctx) {
        if (!ctx) {
            this.logger('MultiLocaleCmsFactory called with no context. Using default credentials');
            return undefined;
        }
        if (!ctx.locale) {
            this.logger('MultiLocaleCmsFactory called with no context locale. Using default credentials');
            return undefined;
        }
        const credentials = this.environmentByLocale[ctx.locale];
        if (!credentials) {
            this.logger(`MultiLocaleCmsFactory has no credentials for locale '${ctx.locale}'. Trying with default credentials`);
            return undefined;
        }
        return credentials;
    }
}
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