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additional logic for burning reserve in exchange of native; initial draft

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Signed-off-by: Uncle Fatso <uncle.fatso@ghostchain.io>
This commit is contained in:
Uncle Fatso 2025-06-27 20:16:10 +03:00
parent 4193447068
commit 5541eda138
Signed by: f4ts0
GPG Key ID: 565F4F2860226EBB
1 changed files with 25 additions and 1 deletions
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26
src/mocks/Reserve.sol
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@ -5,7 +5,9 @@ import "@openzeppelin-contracts/token/ERC20/extensions/ERC20Permit.sol";
contract Reserve is ERC20Permit { contract Reserve is ERC20Permit {
address private immutable _owner; address private immutable _owner;
uint256 public accumulatedDonation;
uint256 public conversionRate; uint256 public conversionRate;
uint256 public donationRate;
error OnlyOwner(); error OnlyOwner();
constructor( constructor(
@ -30,9 +32,14 @@ contract Reserve is ERC20Permit {
conversionRate = rate; conversionRate = rate;
} }
function changeReminder(uint256 reminder) external {
if (msg.sender != _owner) revert OnlyOwner();
donationRate = reminder;
}
function withdraw(address payable receiver) external { function withdraw(address payable receiver) external {
if (msg.sender != _owner) revert OnlyOwner(); if (msg.sender != _owner) revert OnlyOwner();
(bool sent,) = receiver.call{ value: address(this).balance }(""); (bool sent,) = receiver.call{ value: accumulatedDonation }("");
require(sent, "Failed to send Ether"); require(sent, "Failed to send Ether");
} }
@ -42,10 +49,27 @@ contract Reserve is ERC20Permit {
} }
function mint(address account) external payable { function mint(address account) external payable {
uint256 donation = msg.value * donationRate / 1e5;
accumulatedDonation += donation;
_innerMint(account, msg.value); _innerMint(account, msg.value);
} }
function burn(uint256 amount) external payable {
(bool sent,) = msg.sender.call{ value: estimateAmount(amount) }("");
require(sent, "Failed to send Ether");
_innerBurn(msg.sender, amount);
}
function estimateAmount(uint256 amount) public view returns (uint256) {
uint256 valueDiff = address(this).balance - accumulatedDonation;
return amount * valueDiff / totalSupply();
}
function _innerMint(address who, uint256 amount) internal { function _innerMint(address who, uint256 amount) internal {
_mint(who, amount * conversionRate); _mint(who, amount * conversionRate);
} }
function _innerBurn(address who, uint256 amount) internal {
_burn(who, amount);
}
} }