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contracts...Epargne.sol

// SPDX-License-Identifier: GPL-3.0

pragma solidity >=0.8.2 <0.9.0;

/**
 * Compte épargne
 *
 * Cf. aussi Ownable de OpenZeppelin
 */
contract Epargne {
    uint256 id;
    address owner;
    uint256 contractTime;
    mapping(uint => uint) history;

    constructor() {
        owner = msg.sender;
        contractTime = block.timestamp;
    }

    modifier onlyOwner() {
        require(msg.sender == owner, unicode"Vous n'êtes pas autorisé.");
        _;
    }

    function deposit() public payable onlyOwner {
        history[id] = msg.value;
        id++;
    }

    function distribute() external {
        require(
            block.timestamp > contractTime + 12 seconds,
            unicode"Vous ne pouvez pas récupérer votre argent encore."
        );

        // Pas nécessaire de mettre payable autour de msg.sender car msg.sender est déjà payable.
        (bool sent, ) = payable(msg.sender).call{value: address(this).balance}(
            ""
        );

        require(sent, unicode"Transfert non effectué.");
        // history[id] = -1 * int(address(this).balance);
        // id++;
    }

    receive() external payable {
        deposit();
    }
}