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feat(smart-wallet): contract for wallet factory
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,116 @@ | ||
| // @ts-check | ||
| /** | ||
| * @file Wallet Factory | ||
| * | ||
| * Contract to make smart wallets. | ||
| */ | ||
| import '@agoric/deploy-script-support/exported.js'; | ||
| import '@agoric/wallet-backend/src/types.js'; // TODO avoid ambient types | ||
|
|
||
| import { | ||
| makeStoredSubscription, | ||
| makeSubscriptionKit, | ||
| observeIteration, | ||
| } from '@agoric/notifier'; | ||
| import spawn from '@agoric/wallet-backend/src/wallet.js'; | ||
| import '@agoric/zoe/exported.js'; | ||
| import { E, Far } from '@endo/far'; | ||
| import { makeScalarBigMapStore } from '@agoric/vat-data'; | ||
|
|
||
| const { assign, entries, keys, fromEntries } = Object; | ||
|
|
||
| /** | ||
| * @typedef {{ | ||
| * agoricNames: NameHub, | ||
| * board: Board, | ||
| * namesByAddress: NameHub, | ||
| * }} SmartWalletContractTerms | ||
| */ | ||
|
|
||
| /** | ||
| * | ||
| * @param {ZCF<SmartWalletContractTerms>} zcf | ||
| * @param {{ | ||
| * storageNode?: ERef<StorageNode>, | ||
| * marshaller?: ERef<Marshaller>, | ||
| * }} privateArgs | ||
| */ | ||
| export const start = async (zcf, privateArgs) => { | ||
| const { agoricNames, namesByAddress, board } = zcf.getTerms(); | ||
| assert(board, 'missing board'); | ||
| assert(namesByAddress, 'missing namesByAddress'); | ||
| assert(agoricNames, 'missing agoricNames'); | ||
| const zoe = zcf.getZoeService(); | ||
| const { storageNode, marshaller } = privateArgs; | ||
|
|
||
| /** @type {MapStore<string, unknown>} */ | ||
| const walletsByAddress = makeScalarBigMapStore('walletsByAddress'); | ||
|
|
||
| /** | ||
| * | ||
| * @param {string} address | ||
| * @param {ERef<import('@agoric/vats/src/vat-bank').Bank>} bank | ||
| * @param {ERef<MyAddressNameAdmin>} myAddressNameAdmin | ||
| */ | ||
| const provideSmartWallet = async (address, bank, myAddressNameAdmin) => { | ||
| assert.typeof(address, 'string', 'invalid address'); | ||
| assert(bank, 'missing bank'); | ||
| assert(myAddressNameAdmin, 'missing myAddressNameAdmin'); | ||
|
|
||
| const walletVat = spawn({ | ||
| agoricNames, | ||
| namesByAddress, | ||
| // ??? why do we make this instead of passing the address itself? | ||
| myAddressNameAdmin, | ||
| zoe, | ||
| board, | ||
| localTimerService: undefined, | ||
| publicFacetName: 'smartWallet', | ||
| }); | ||
|
|
||
| const wallet = await E(walletVat).getWallet(bank); | ||
| const admin = E(wallet).getAdminFacet(); | ||
|
|
||
| /** @type {Record<string, ERef<Notifier<unknown>>>} */ | ||
| const notifierParts = { | ||
| contacts: E(admin).getContactsNotifier(), | ||
| dapps: E(admin).getDappsNotifier(), | ||
| issuers: E(admin).getIssuersNotifier(), | ||
| offers: E(admin).getOffersNotifier(), | ||
| payments: E(admin).getPaymentsNotifier(), | ||
| purses: E(admin).getPursesNotifier(), | ||
| }; | ||
| const mutableState = fromEntries(keys(notifierParts).map(key => [key, []])); | ||
| const { subscription, publication } = makeSubscriptionKit(); | ||
| publication.updateState({ ...mutableState }); | ||
| entries(notifierParts).forEach(([key, notifier]) => { | ||
| void observeIteration(notifier, { | ||
| updateState: value => | ||
| publication.updateState({ | ||
| ...assign(mutableState, { [key]: value }), | ||
| }), | ||
| }); | ||
| }); | ||
|
|
||
| const myWalletStorageNode = | ||
| storageNode && E(storageNode).getChildNode(address); | ||
| const storedSubscription = makeStoredSubscription( | ||
| subscription, | ||
| myWalletStorageNode, | ||
| marshaller, | ||
| ); | ||
|
|
||
| const smartWallet = Far('SmartWallet', { | ||
| ...wallet, | ||
| getSubscription: () => storedSubscription, | ||
| }); | ||
| walletsByAddress.init(address, smartWallet); | ||
| return smartWallet; | ||
| }; | ||
|
|
||
| return { | ||
| creatorFacet: Far('walletFactoryCreator', { | ||
| provideSmartWallet, | ||
| }), | ||
| }; | ||
| }; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,2 @@ | ||
| export const makeWalletHolder = () => {}; | ||
| harden(makeWalletHolder); |
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