91 lines
2.9 KiB
Solidity
91 lines
2.9 KiB
Solidity
// SPDX-License-Identifier: MIT
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pragma solidity 0.7.6;
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pragma abicoder v2;
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import { SafeMath } from "@openzeppelin/contracts/math/SafeMath.sol";
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import "./interfaces/IInstanceRegistry.sol";
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import "./interfaces/IInstanceFactory.sol";
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struct InstanceAdditionData {
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address tokenAddress;
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uint40 smallDenomination;
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uint16 base10Exponent;
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uint24 uniPoolSwappingFee;
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uint16 protocolFee;
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}
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contract InstanceAdditionDataProvider {
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InstanceAdditionData[] public toAddData;
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constructor(InstanceAdditionData[] memory _toAdd) {
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for (uint256 i = 0; i < _toAdd.length; i++) {
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toAddData.push(_toAdd[i]);
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}
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}
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function getAllDataToAdd() external view returns (InstanceAdditionData[] memory) {
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return toAddData;
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}
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}
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contract InstanceAdditionProposal {
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using SafeMath for uint256;
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InstanceAdditionDataProvider public immutable provider;
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IInstanceFactory public immutable instanceFactory;
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IInstanceRegistry public immutable instanceRegistry;
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event AddInstanceForRegistry(address instance, address token, uint256 denomination);
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constructor(address _instanceFactory, address _instanceRegistry, InstanceAdditionData[] memory _toAdd) {
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provider = new InstanceAdditionDataProvider(_toAdd);
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instanceFactory = IInstanceFactory(_instanceFactory);
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instanceRegistry = IInstanceRegistry(_instanceRegistry);
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}
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function executeProposal() external {
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InstanceAdditionData[] memory _toAddData = provider.getAllDataToAdd();
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uint256 howMany = _toAddData.length;
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for (uint256 i = 0; i < howMany; i++) {
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// Read out the data for the new instance
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InstanceAdditionData memory data = _toAddData[i];
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// Safely calculate the denomination
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uint256 denomination = uint256(data.smallDenomination).mul(10 ** uint256(data.base10Exponent));
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// Create the instance
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address instance = instanceFactory.createInstanceClone(denomination, data.tokenAddress);
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// Prepare the data for the registry.
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IInstanceRegistry.Instance memory newInstanceData = IInstanceRegistry.Instance(
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data.tokenAddress != address(0),
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IERC20(data.tokenAddress),
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IInstanceRegistry.InstanceState.ENABLED,
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data.uniPoolSwappingFee,
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data.protocolFee
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);
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// Convert the data.
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IInstanceRegistry.Tornado memory tornadoForUpdate = IInstanceRegistry.Tornado(instance, newInstanceData);
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// Update the instance data in the registry.
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instanceRegistry.updateInstance(tornadoForUpdate);
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emit AddInstanceForRegistry(address(instance), data.tokenAddress, denomination);
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}
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}
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function getDataToAddByIndex(uint256 index) external view returns (InstanceAdditionData memory data) {
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// The compiler is behaving weird here. Something to do with struct type inference.
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return (provider.getAllDataToAdd())[index];
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}
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function getAllDataToAdd() external view returns (InstanceAdditionData[] memory) {
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return provider.getAllDataToAdd();
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}
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}
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