import { CaveatTypes, RestrictedMethods, } from '../../../../shared/constants/permissions'; export function getPermissionBackgroundApiMethods(permissionController) { return { addPermittedAccount: (origin, account) => { const existing = permissionController.getCaveat( origin, RestrictedMethods.eth_accounts, CaveatTypes.restrictReturnedAccounts, ); if (existing.value.includes(account)) { throw new Error( `eth_accounts permission for origin "${origin}" already permits account "${account}".`, ); } permissionController.updateCaveat( origin, RestrictedMethods.eth_accounts, CaveatTypes.restrictReturnedAccounts, [...existing.value, account], ); }, removePermittedAccount: (origin, account) => { const existing = permissionController.getCaveat( origin, RestrictedMethods.eth_accounts, CaveatTypes.restrictReturnedAccounts, ); if (!existing.value.includes(account)) { throw new Error( `eth_accounts permission for origin "${origin}" already does not permit account "${account}".`, ); } const remainingAccounts = existing.value.filter( (existingAccount) => existingAccount !== account, ); if (remainingAccounts.length === 0) { permissionController.revokePermission( origin, RestrictedMethods.eth_accounts, ); } else { permissionController.updateCaveat( origin, RestrictedMethods.eth_accounts, CaveatTypes.restrictReturnedAccounts, remainingAccounts, ); } }, requestAccountsPermissionWithId: async (origin) => { const [, { id }] = await permissionController.requestPermissions( { origin }, { eth_accounts: {}, }, ); return id; }, }; }