Address io1ymk0qlt62q6hxxfx86a04qlwkcuzdptjz7ejxz

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;


// This is multisig to accept tokens in local currnecy
contract LocalMultiSig{

    // Defining events
    // Fired when tokens are deposited to this multisig wallet
    event Deposit(address indexed sender, uint amount);
    // Fired when a transaction is submitted, waiting for other owners to approve
    event Submit(uint indexed txnId);
    // Fired when an owner approves
    event Approve(address indexed owner, uint indexed txnId);
    // Fired when an owner revokes his approval
    event Revoke(address indexed owner, uint indexed txnId);
    // Fired when there are sufficient approvals for the contract to get executed
    event Execute(uint indexed txnId);

    // Transaction Description
    struct Transaction {
        // Address where the transaction is executed
        address to;
        // Amount of tokens sent tot he 'to' address
        uint value;
        // Set to true when transaction is executed
        bool executed;
    }

    // Owners of multisig
    address[] public owners;
    mapping(address => bool) public isOwner;
    // Minimum approvals for transaction get executed
    uint public required;

    // List of all transactions submitted
    Transaction[] public transactions;
    // Mapping of vote/approval of each owner for each transaction
    mapping(uint => mapping(address => bool)) public approved;

    // Defining modifier to allow only owners to execute certain functions
    modifier onlyOwner(){
        require(isOwner[msg.sender], "not owner");
        _;
    }

    // Modifier to check if the transaction exists
    modifier txExists(uint _txId){
        require(_txId<transactions.length, "tx does not exist");
        _;
    }

    // Modifier to check if the transaction is not already approved by msg.sender
    modifier notApproved(uint _txId){
        require(!approved[_txId][msg.sender], "tx already approved");
        _;
    }

    // Modifier to check if the transaction is not executed
    modifier notExecuted(uint _txId){
        require(!transactions[_txId].executed, "tx already executed");
        _;
    }

    constructor(address[] memory _owners, uint _required){
        require(_owners.length > 0, "Owners required");
        require(_required > 0 && _required < _owners.length, "invalid required numer of owners");
        for(uint i = 0; i < _owners.length; i++){
            
            address owner = _owners[i];
            
            require(owner != address(0), "invalid owner");
            require(!isOwner[owner], "owner not unique");

            isOwner[owner] = true;
            owners.push(owner);
        }
        required = _required;
        
    }


    // Fallback function to received sent ether
    receive() external payable{
        // Emit Deposit event
        emit Deposit(msg.sender, msg.value);
    }

    // Function to submit transactions to be reviewed
    function submit(address _to, uint _value) external onlyOwner {

        transactions.push(Transaction(_to, _value, false));

        emit Submit(transactions.length - 1);
    }


    // Function to approve submitted transaction
    function approve(uint _txId) external 
    onlyOwner 
    txExists(_txId) 
    notApproved(_txId) 
    notExecuted(_txId) {

        approved[_txId][msg.sender] = true;
        emit Approve(msg.sender, _txId);
    }


    // Function to get total approvals for a submitted transaction
    function _getApprovalCount(uint _txId) private view returns (uint) {    
        uint count = 0;
        for(uint i = 0; i < owners.length; i++){
            if(approved[_txId][owners[i]]){
                count+=1;
            }
        }
        return count;
    }

    // Function to execute submitted transaction
    function execute(uint _txId) external
    onlyOwner
    txExists(_txId)
    notExecuted(_txId) {
        require(_getApprovalCount(_txId) >= required, "Approvals less than required");
        Transaction storage transaction = transactions[_txId];
        transaction.executed = true;
        (bool success,) = payable(transaction.to).call{value: transaction.value}("");
        require(success, "tx failed");

        emit Execute(_txId);
    }

    // Function to revoke approval for a submitted transaction
    function revoke(uint _txId) external 
    onlyOwner 
    txExists(_txId) 
    notExecuted(_txId) {

        require(approved[_txId][msg.sender], "tx not Approved");
        approved[_txId][msg.sender] = false;
        emit Revoke(msg.sender, _txId);
    }

    // View function to return number of transaction based on transaction id
    function num_transactions() external view
    returns(uint num_tx) {
        num_tx = transactions.length;
    }

}

[{"inputs":[{"internalType":"address[]","name":"_owners","type":"address[]"},{"internalType":"uint256","name":"_required","type":"uint256"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"uint256","name":"txnId","type":"uint256"}],"name":"Approve","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Deposit","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"txnId","type":"uint256"}],"name":"Execute","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"uint256","name":"txnId","type":"uint256"}],"name":"Revoke","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"txnId","type":"uint256"}],"name":"Submit","type":"event"},{"inputs":[{"internalType":"uint256","name":"_txId","type":"uint256"}],"name":"approve","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"address","name":"","type":"address"}],"name":"approved","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_txId","type":"uint256"}],"name":"execute","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"isOwner","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"num_transactions","outputs":[{"internalType":"uint256","name":"num_tx","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"owners","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"required","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_txId","type":"uint256"}],"name":"revoke","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"submit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"transactions","outputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"bool","name":"executed","type":"bool"}],"stateMutability":"view","type":"function"},{"stateMutability":"payable","type":"receive"}]

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