71 lines
2.0 KiB
Solidity
71 lines
2.0 KiB
Solidity
// SPDX-License-Identifier: Unlicense
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pragma solidity ^0.8.24;
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import {ERC721} from "@openzeppelin/contracts/token/ERC721/ERC721.sol";
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import "./ReputationHolder.sol";
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struct Stake {
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bool inFavor;
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uint256 amount;
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address worker;
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}
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enum ValidationPoolStatus {
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Open,
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Closed
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}
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struct ValidationPool {
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mapping(uint => Stake) stakes;
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uint stakeCount;
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ValidationPoolStatus status;
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}
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/// This contract must manage validation pools and reputation,
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/// because otherwise there's no way to enforce appropriate permissions on
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/// transfer of value between reputation NFTs.
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contract DAO is ERC721("Reputation", "REP"), ReputationHolder {
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mapping(uint256 tokenId => uint256) tokenValues;
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uint256 nextTokenId;
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mapping(uint => ValidationPool) validationPools;
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uint validationPoolCount;
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/// Inspect the value of a given reputation NFT
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function valueOf(uint256 tokenId) public view returns (uint256 value) {
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value = tokenValues[tokenId];
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}
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/// Internal function to mint a new reputation NFT
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function mint() internal returns (uint256 tokenId) {
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// Generate a new (sequential) ID for the token
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tokenId = nextTokenId++;
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// Mint the token, initially to be owned by the current contract.
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_mint(address(this), tokenId);
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}
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/// Internal function to transfer value from one reputation token to another
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function transferValueFrom(
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uint256 fromTokenId,
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uint256 toTokenId,
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uint256 amount
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) internal {
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require(amount >= 0);
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require(valueOf(fromTokenId) >= amount);
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tokenValues[fromTokenId] -= amount;
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tokenValues[toTokenId] += amount;
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}
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/// Accept fee to initiate a validation pool
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function initiateValidationPool() public {}
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/// Accept reputation stakes toward a validation pool
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function onERC721Received(
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address,
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address from,
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uint256 tokenId,
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bytes calldata
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) public override returns (bytes4) {
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return super.onERC721Received.selector;
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}
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}
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