Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 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 72 73 74 75 76 77 | import { E } from '@endo/eventual-send';
import { makeDefaultExo } from '@metamask/kernel-utils/exo';
import type { Baggage } from '@metamask/ocap-kernel';
/**
* Build function for MaaS consumer.
*
* @param _vatPowers - Special powers granted to this vat (not used here).
* @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.
* @returns The root object for the new vat.
*/
// eslint-disable-next-line @typescript-eslint/explicit-function-return-type
export function buildRootObject(
_vatPowers: unknown,
parameters: { name?: string },
baggage: Baggage,
) {
const name = parameters?.name ?? 'anonymous';
// eslint-disable-next-line no-console
console.log(`buildRootObject "${name}"`);
return makeDefaultExo('root', {
async bootstrap(
_vats: unknown,
services: { ocapURLRedemptionService?: unknown },
) {
// eslint-disable-next-line no-console
console.log(`vat ${name} is bootstrap`);
const redeemer = services.ocapURLRedemptionService;
if (!redeemer) {
// eslint-disable-next-line no-console
console.log('no ocapURLRedemptionService found');
throw Error('ocapURLRedemptionService not available');
}
baggage.init('redeemer', redeemer);
},
async setMaas(url: string) {
if (!baggage.has('redeemer')) {
throw Error('ocapURLRedemptionService not available');
}
const redeemer = baggage.get('redeemer');
const maas = await E(redeemer).redeem(url);
if (!maas) {
throw Error(`unable to redeem ${url}`);
}
if (baggage.has('maas')) {
baggage.set('maas', maas);
} else {
baggage.init('maas', maas);
}
baggage.init('previous', 0);
const result = `MaaS service URL set to ${url}`;
// eslint-disable-next-line no-console
console.log(result);
return result;
},
async step() {
if (!baggage.has('maas')) {
const message = 'MaaS service address not set';
// eslint-disable-next-line no-console
console.log(message);
throw Error(message);
}
const maas = baggage.get('maas');
const next = await E(maas).next(name);
const previous = baggage.get('previous') as number;
const result = `next step: ${String(next)} (last seen was ${previous})`;
// eslint-disable-next-line no-console
console.log(result);
baggage.set('previous', next);
return result;
},
});
}
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