pragma solidity <0.6.0;

import "./FileInterface.sol";
import "./EventInterface.sol";


contract DocumentInterface {
    address public signature;
    address public signer;
    address public deployer;

    string public id;
    string public cancelReason;
    string public signatureType;
    string public declineReason;
    string public signedFileHash;

    string[] public eventsId;

    uint public signedAt;
    uint public createdAt;

    bool public signed;
    bool public canceled;
    bool public declined;

    FileInterface public file;

    mapping(string => EventInterface) private events;

    function init(
        string memory initType,
        uint documentCreatedAt
    )
        public;

    function setSignatureOwner(
        address signatureOwnerAdr
    )
        public;

    function setOwner(
        address signerAddress
    )
        public;

    function sign(
        uint documentSignedAt
    )
        public;

    function notifyEntityEvent(
        string memory notifiersKey,
        string memory createdEvent,
        address adrToNotify
    )
        internal;

    function decline(
        string memory documentDeclineReason
    )
        public;

    function cancel(
        string memory documentCancelReason
    )
        public;

    function createFile(
        string memory fileId,
        string memory fileName,
        string memory fileHash,
        uint fileCreatedAt,
        uint fileSize
    )
        public;

    function setFileHash(
        string memory fileHash
    )
        public;

    function createEvent(
        string memory eventId,
        string memory eventType,
        string memory eventUserAgent,
        uint eventCreatedAt
    )
        public;

    function getEvent(
        string memory eventId
    )
        public
        view
        returns (address);

    function getEventsSize()
        public
        view
        returns (uint);
}