文件列表:

contracts (0, 2022-02-24)
contracts\AcroDAO.sol (7913, 2022-02-24)
contracts\NftMarketplace.sol (1313, 2022-02-24)
contracts\Proposal.sol (900, 2022-02-24)
hardhat.config.js (572, 2022-02-24)
package.json (1121, 2022-02-24)
scripts (0, 2022-02-24)
scripts\script.js (688, 2022-02-24)
test (0, 2022-02-24)
test\ AcroDAO.js (10711, 2022-02-24)

# DAO Voting System In this project you're going to write a governance smart contract for a decentralized autonomous organization (DAO) aimed at buying valuable NFTs. In doing so, you will: - Implement a treasury contract that buys NFTs - Implement a voting system with signature votes - Implement a proposal system that calls arbitrary functions. ## Project Spec You are writing a contract for Collector DAO, a DAO that aims to collect rare NFTs. This DAO wishes to have a contract that: - Allows anyone to buy a membership for 1 ETH - Allows a member to propose an NFT to buy - Allows members to vote on proposals: - With a 25% quorum - If passed, have the contract purchase the NFT in a reasonably automated fashion. Implementation requirements: - Even though this DAO has one main purpose, write your proposal system to support calling arbitrary functions, then use this to implement the NFT-buying behavior. - Write a function that accepts, validates, and writes vote signatures. Then write a function to do this in bulk. Here is the interface you can assume exists for buying NFTs: ``` interface NftMarketplace { function getPrice(address nftContract, uint nftId) external returns (uint price); function buy(address nftContract, uint nftId) external payable returns (bool success); } ```

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