MultiAccount Contract (Options)

The MultiAccount contract acts as a control plane for user-level trading accounts (PartyA contracts). Each Party A account holds isolated balances, positions, and state, while MultiAccount manages deployment, access, and orchestration logic. It enables:

• Deterministic account creation via CREATE2, enabling off-chain precomputation

• Batched diamond calls to forward multiple encoded operations to a PartyA contract

• ERC-1271 support for smart contract-based signature validation

• Admin lifecycle control, including pausing and implementation hot-swaps

• Gasless delegation via Symmio’s InstantLayer integration

All PartyA accounts are owned and governed via this registry-like contract, which maintains mappings between users and their deployed trading accounts.

Core Functions

🔹 Account Lifecycle

function addAccount(string memory name) external;

Deploys a new PartyA contract using CREATE2 and registers it under the caller’s control. Emits AddAccount.

function editAccountName(address accountAddress, string memory name) external;

Renames an existing PartyA contract. Only callable by the account owner. Emits EditAccountName.

🔹 Diamond Operation Dispatcher

function _call(address account, bytes[] memory callDatas) external;

Executes a batch of encoded diamond calls on a PartyA account. Can only be called by the account owner or a registered InstantLayer. Reverts on failure. Emits a Call event per inner call.

🔹 Signature Verification (ERC-1271)

function verifySignatureOfAccount(
    address account,
    bytes32 hash,
    bytes calldata signature
) external view returns (bytes4);

Validates a signed message against the account owner's address. Returns 0x1626ba7e on success; 0xffffffff on failure.

🔹 TradeNFT Transfer Utility

function transferTradeNFT(
    address account,
    address to,
    uint256 tokenId
) external;

Transfers a TradeNFT from a PartyA contract to an external address. Owner-only.

🔹 Admin & Emergency Controls

function setAccountImplementation(bytes memory newCode) external;

Sets a new implementation bytecode for future CREATE2 deployments.

function adminCallPartyA(address partyA, bytes calldata data) external;

Allows privileged (admin) execution on a PartyA contract—restricted by SETTER_ROLE.

function pause() external;
function unpause() external;

Standard circuit-breaker functionality, gated by PAUSER_ROLE and UNPAUSER_ROLE.