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Update.sol
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Update.sol
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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
contract Update {
address public implementation;
address public customer;
uint256 public monthlyWithdrawPropotion;
address private wealthNavig = 0xAb8483F64d9C6d1EcF9b849Ae677dD3315835cb2;
bool public withdrawable;
constructor(address _implementation) payable{
customer = msg.sender;
implementation = _implementation;
monthlyWithdrawPropotion = 10; //initial investment :10 percent of the total balance
withdrawable=true;// prepare the initial investment
}
//delegate to current logic contract
fallback() external payable {
//can only be called once a month. for demostration purpose, I will not realize the monthly restriction.
(bool success, bytes memory data) = implementation.delegatecall(msg.data);
require(success, "Delegatecall failed.");
withdrawable=true;//enable monthly investment after udpate the proportion
}
//change the current logic contract, can only be called by customer
function update(address newImplementation) external {
require(msg.sender == customer);
implementation = newImplementation;
}
//enable this contract to receive ETH
event Received(address Sender, uint256 Value);
receive() external payable {
emit Received(msg.sender, msg.value);
}
//get current balance
function getBalance() public view returns (uint256) {
return address(this).balance;
}
//transfer a specific amount of ethers to wealthNavig based on the proportion
function transferToWealthNavig() external {
require(withdrawable==true, "You need to update the monthly investment proportion first!");
require(msg.sender == wealthNavig, "Caller is not the specified wealthNavig address");
uint256 amount = address(this).balance * monthlyWithdrawPropotion / 100;
require(address(this).balance >= amount, "Not enough balance in the contract");
payable(wealthNavig).transfer(amount);
withdrawable=false;//close transfer for this month
}
}