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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 | import { E } from '@endo/eventual-send';
import { makeDefaultExo } from '@metamask/kernel-utils/exo';
import type { TestPowers } from '../test-powers.ts';
/**
* Build function for vat that sends remote messages to other kernels.
*
* @param vatPowers - Special powers granted to this vat.
* @param vatPowers.logger - The logger for the vat.
* @param parameters - Initialization parameters from the vat's config object.
* @param parameters.name - The name of the vat.
* @param _baggage - Root of vat's persistent state (not used here).
* @returns The root object for the new vat.
*/
// eslint-disable-next-line @typescript-eslint/explicit-function-return-type
export function buildRootObject(
{ logger }: TestPowers,
parameters: { name?: string } = {},
_baggage: unknown = null,
) {
const name = parameters?.name ?? 'RemoteSender';
logger.log(`buildRootObject "${name}"`);
let issuerService: unknown;
let redeemerService: unknown;
return makeDefaultExo('remoteSenderRoot', {
async bootstrap(
vats: { receiver?: unknown },
services: {
ocapURLIssuerService?: unknown;
ocapURLRedemptionService?: unknown;
},
) {
logger.log(`vat ${name} is bootstrap`);
issuerService = services.ocapURLIssuerService;
redeemerService = services.ocapURLRedemptionService;
if (issuerService && vats.receiver) {
const url = await E(issuerService).issue(vats.receiver);
logger.log(`url for receiver: ${url}`);
return { message: `${name} bootstrap complete`, ocapURL: url };
}
return { message: `${name} bootstrap complete` };
},
async sendMessage(remoteURL: string, method: string, args: unknown[] = []) {
logger.log(`${name} attempting to redeem URL: ${remoteURL}`);
if (redeemerService) {
const remoteObject = await E(redeemerService).redeem(remoteURL);
logger.log(`${name} redeemed URL successfully`);
const result = await E(remoteObject)[method](...args);
logger.log(`${name} got result:`, result);
return result;
}
logger.log('no ocapURLRedemptionService found');
throw new Error('ocapURLRedemptionService not available');
},
hello(from: string) {
const message = `${name} received hello from ${from}`;
logger.log(message);
return message;
},
});
}
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