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August 13, 2024 18:52
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| // SPDX-License-Identifier: MIT | |
| pragma solidity ^0.8.20; | |
| import "@openzeppelin/contracts/access/Ownable.sol"; | |
| contract ContactManager is Ownable { | |
| constructor(address initialOwner) Ownable(initialOwner) {} | |
| struct User { | |
| address userAddress; | |
| string[] hashes; | |
| } | |
| User[] public users; | |
| mapping(address => uint) public userIndex; | |
| function createUser() public { | |
| users.push(User({ | |
| userAddress: msg.sender, | |
| hashes: new string[](0) | |
| })); | |
| userIndex[msg.sender] = users.length - 1; | |
| } | |
| function addUserHash(string memory _hash) public { | |
| uint index = userIndex[msg.sender]; | |
| users[index].hashes.push(_hash); | |
| } | |
| function removeUserHash(uint _index) public { | |
| uint userIndex_ = userIndex[msg.sender]; | |
| User storage user = users[userIndex_]; | |
| user.hashes[_index] = user.hashes[user.hashes.length - 1]; | |
| user.hashes.pop(); | |
| } | |
| function getUserHashes() public view returns (string[] memory) { | |
| uint index = userIndex[msg.sender]; | |
| return users[index].hashes; | |
| } | |
| function removeUser() public { | |
| } | |
| } |
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