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// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity 0.8.20;

contract VoteWeightRegistry {

struct Vote {
    // User address
    address user;

    // Gauge address
    address[] gauges;

    // Weight to allocate - 0 to 100
    uint256[] weights;

    bool killed;
}

    mapping(string => mapping(uint256 => Vote)) public votes;

    // Index start to one
    mapping(string => uint256) public space_votes_index;
    mapping(address => mapping(string => uint256)) public user_vote_index;
    
    function set(string calldata space, address[] calldata _gauges, uint256[] calldata _weights) external {
        uint256 weightLength = _weights.length;

        require(_gauges.length == weightLength, "!Length");

        uint256 sum = 0;
        uint256 i = 0;
        
        for(;i<weightLength;) {
            sum += _weights[i];
            
            unchecked {
                ++i;
            }
        }

        require(sum == 10000, "Wrong weight");

        uint256 userVoteIndex = user_vote_index[msg.sender][space];
        if(userVoteIndex == 0) {
            // New vote
            uint256 currentIndex = space_votes_index[space];
            userVoteIndex = currentIndex + 1;

            space_votes_index[space] = userVoteIndex;
            user_vote_index[msg.sender][space] = userVoteIndex;
        }

        votes[space][userVoteIndex] = Vote({
            user: msg.sender,
            gauges: _gauges,
            weights: _weights,
            killed: false
        });
    }

    function remove(string calldata space) public {
        uint256 index = user_vote_index[msg.sender][space];
        require(index > 0, "No vote");
        

        votes[space][index].killed = true;
    }

    function removeAll(string[] calldata spaces) public {
        for(uint256 i = 0; i < spaces.length; ++i) {
            remove(spaces[i]);
        }
    }


    function get(address user, string calldata space) external view returns(Vote memory) {
        uint256 index = user_vote_index[user][space];
        return votes[space][index];
    }
}

{
  "remappings": [
    "ds-test/=lib/forge-std/lib/ds-test/src/",
    "forge-std/=lib/forge-std/src/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "ipfs",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "paris",
  "libraries": {}
}

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[{"inputs":[{"internalType":"address","name":"user","type":"address"},{"internalType":"string","name":"space","type":"string"}],"name":"get","outputs":[{"components":[{"internalType":"address","name":"user","type":"address"},{"internalType":"address[]","name":"gauges","type":"address[]"},{"internalType":"uint256[]","name":"weights","type":"uint256[]"},{"internalType":"bool","name":"killed","type":"bool"}],"internalType":"struct VoteWeightRegistry.Vote","name":"","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"string","name":"space","type":"string"}],"name":"remove","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string[]","name":"spaces","type":"string[]"}],"name":"removeAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"space","type":"string"},{"internalType":"address[]","name":"_gauges","type":"address[]"},{"internalType":"uint256[]","name":"_weights","type":"uint256[]"}],"name":"set","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"","type":"string"}],"name":"space_votes_index","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"string","name":"","type":"string"}],"name":"user_vote_index","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"string","name":"","type":"string"},{"internalType":"uint256","name":"","type":"uint256"}],"name":"votes","outputs":[{"internalType":"address","name":"user","type":"address"},{"internalType":"bool","name":"killed","type":"bool"}],"stateMutability":"view","type":"function"}]

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