harvest_split.sol in Solidity

Split proceeds by picking hours, paid by the pull pattern.

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;

// Split each harvest's proceeds by recorded picking hours.
contract HarvestSplit {
    mapping(address => uint256) public hours_;
    mapping(address => uint256) public owed;
    address[] public pickers;
    uint256 public totalHours;
    bool public seasonOpen = true;

    event HoursLogged(address indexed picker, uint256 hoursWorked);
    event ProceedsIn(uint256 amount);
    event Paid(address indexed picker, uint256 amount);

    function logHours(uint256 hoursWorked) external {
        require(seasonOpen, "season closed");
        if (hours_[msg.sender] == 0) {
            pickers.push(msg.sender);
        }
        hours_[msg.sender] += hoursWorked;
        totalHours += hoursWorked;
        emit HoursLogged(msg.sender, hoursWorked);
    }

    // Proceeds arrive; each picker's share lands in owed.
    function deposit() external payable {
        require(totalHours > 0, "no hours logged");
        seasonOpen = false;
        emit ProceedsIn(msg.value);
        for (uint256 i = 0; i < pickers.length; i++) {
            address p = pickers[i];
            owed[p] += (msg.value * hours_[p]) / totalHours;
        }
    }

    // Pull payments: zero first, then send.
    function withdraw() external {
        uint256 amount = owed[msg.sender];
        require(amount > 0, "nothing owed");
        owed[msg.sender] = 0;
        (bool ok, ) = msg.sender.call{value: amount}("");
        require(ok, "send failed");
        emit Paid(msg.sender, amount);
    }
}

How it works

1. logHours tracks pickers and the season total.
2. deposit closes the season and portions by hours.
3. withdraw zeroes before sending — effects first, always.

Keywords and builtins used here

• address
• bool
• contract
• emit
• event
• external
• false
• for
• function
• if
• mapping
• payable
• public
• require
• true
• uint256

The run, in numbers

Lines

46

Characters to type

1305

Tokens

268

Three-star pace

55 tpm

At the three-star pace of 55 tokens a minute, this run takes about 292 seconds.

Type this snippet

Step 2 of 3 in Encore, step 27 of 28 in Language basics.

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