// SPDX-License-Identifier: MIT pragma solidity ^0.8.0;
contract AGRO { // Struct to represent a farmer struct Farmer { uint256 id; string name; address farmerAddress; uint256 temperature; uint256 humidity; string pictureHash; bool loanCollateralized; }
mapping(uint256 => Farmer) public farmers;
uint256 public farmersCount;
// Event triggered when a new farmer is registered
event FarmerRegistered(uint256 id, string name, address farmerAddress);
// Function to register a new farmer
function registerFarmer(string memory _name) public {
farmersCount++;
farmers[farmersCount] = Farmer(
farmersCount,
_name,
msg.sender,
0,
0,
"",
false
);
emit FarmerRegistered(farmersCount, _name, msg.sender);
}
// Function to update farm data (temperature, humidity, and picture)
function updateFarmData(uint256 _id, uint256 _temperature, uint256 _humidity, string memory _pictureHash) public {
require(_id <= farmersCount, "Invalid farmer ID");
Farmer storage farmer = farmers[_id];
farmer.temperature = _temperature;
farmer.humidity = _humidity;
farmer.pictureHash = _pictureHash;
}
// Function to collateralize a loan
function collateralizeLoan(uint256 _id) public {
require(_id <= farmersCount, "Invalid farmer ID");
Farmer storage farmer = farmers[_id];
require(!farmer.loanCollateralized, "Loan already collateralized");
farmer.loanCollateralized = true;
}
// Function to buy a loan collateralized by a farmer
function buyLoanCollateral(uint256 _id) public payable {
require(_id <= farmersCount, "Invalid farmer ID");
Farmer storage farmer = farmers[_id];
require(farmer.loanCollateralized, "Loan not collateralized");
// Process the loan purchase and transfer funds to the farmer
}
}