// SPDX-License-Identifier: BUSL-1.1
 
pragma solidity 0.8.4;
 
/**
 * @title IDirectLoanCoordinator
 * @author NFTfi
 * @dev DirectLoanCoordinator interface.
 */
interface IDirectLoanCoordinator {
    enum StatusType {
        NOT_EXISTS,
        NEW,
        RESOLVED
    }
 
    /**
     * @notice This struct contains data related to a loan
     *
     * @param smartNftId - The id of both the promissory note and obligation receipt.
     * @param status - The status in which the loan currently is.
     * @param loanContract - Address of the LoanType contract that created the loan.
     */
    struct Loan {
        address loanContract;
        uint64 smartNftId;
        StatusType status;
    }
 
    function registerLoan(address _lender, bytes32 _loanType) external returns (uint32);
 
    function mintObligationReceipt(uint32 _loanId, address _borrower) external;
 
    function resolveLoan(uint32 _loanId) external;
 
    function promissoryNoteToken() external view returns (address);
 
    function obligationReceiptToken() external view returns (address);
 
    function getLoanData(uint32 _loanId) external view returns (Loan memory);
 
    function isValidLoanId(uint32 _loanId, address _loanContract) external view returns (bool);
}