Chronobank TimeHolder smart contracts library

Provides TimeHolder and related smart contracts to manager TIME token

Install

Organized as npm package this smart contracts could be easily added to a project by

npm install -s @laborx/chronobank-timeholder-contracts

or

yarn add -D @laborx/chronobank-timeholder-contracts

Usage

Right before you decided to use them add this library to package dependencies and import any contract according to this pattern, for example:

import "@laborx/chronobank-timeholder-contracts/contracts/TimeHolder.sol";

Library

Package provides Deployment module to manage smart contract deployment process. Look for more details in the interfaces.

import { Deployment as ChronobankTimeHolderDeployment } from "@laborx/chronobank-timeholder-contracts";

const timeHolder = await ChronobankTimeHolderDeployment.deployTimeHolder(/* ... */);

⚠️ Need to know

• When using Proxy for TimeHolder then MultiEventsHistory as eventsHistory will not work (limitation of nested delegatecall invocation)

Details

TimeHolder as an independent smart contract could be setup by itself or with upgradeability proxy (see OwnedUpgradeabilityProxy at `@laborx/solidity-shared-contracts/contracts/OwnedUpgradeabilityProxy.sol)).

In either way TimeHolder smart contract's functionality is divided in several parts (extensions):

• root TimeHolder smart contract with basic functionality: get balance, get wallet address, etc.
• TimeHolderDepositable extension library - provides an access to deposits, withdrawals and shares management
• TimeHolderLockable extension library - provides an accesss to locking and unlocking deposited shares

This is a neccessary separation of concern because of the size of TimeHolder smart contract.

Library setup

• Deploy both TimeHolderDepositable and TimeHolderLockable smart contracts

Proxy setup

• Deploy TimeHolder (it will be used as a library) without any special setup
• Prepare initialization data for TimeHolder.initDelegatableTimeHolder() function. This data will be used to call this function in instantiated OwnedUpgradeabilityProxy to initalize it.
• Deploy OwnedUpgradeabilityProxy and provide addresses of TimeHolder library and initialization data
• Use deployed OwnedUpgradeabilityProxy with TimeHolder's interface.
• call TimeHolder.init()
• call TimeHolder.setExtensionContracts() and provided deployed libraries (depositable and lockable smart contracts)

TimeHolder without proxy

• Deploy TimeHolder with storage and crate for it
• call TimeHolder.init()
• call TimeHolder.setExtensionContracts() and provided deployed libraries (depositable and lockable smart contracts)