// SPDX-License-Identifier: MIT

pragma solidity >=0.7.0 <0.9.0;
pragma experimental ABIEncoderV2;

import "./WitnetRequestBytecodes.sol";
import "./WitnetOracle.sol";
import "./WitnetRequestFactory.sol";

abstract contract WitnetRequestTemplate
{
    event WitnetRequestBuilt(address indexed request, bytes32 indexed radHash, string[][] args);

    function class() virtual external view returns (string memory);
    function factory() virtual external view returns (WitnetRequestFactory);
    function registry() virtual external view returns (WitnetRequestBytecodes);
    function specs() virtual external view returns (bytes4);
    function version() virtual external view returns (string memory);
    function witnet() virtual external view returns (WitnetOracle);

    function aggregator() virtual external view returns (bytes32);
    function parameterized() virtual external view returns (bool);
    function resultDataMaxSize() virtual external view returns (uint16);
    function resultDataType() virtual external view returns (Witnet.RadonDataTypes);
    function retrievals() virtual external view returns (bytes32[] memory);
    function tally() virtual external view returns (bytes32);
    
    function getRadonAggregator() virtual external view returns (Witnet.RadonReducer memory);
    function getRadonRetrievalByIndex(uint256) virtual external view returns (Witnet.RadonRetrieval memory);
    function getRadonRetrievalsCount() virtual external view returns (uint256);
    function getRadonTally() virtual external view returns (Witnet.RadonReducer memory);
    
    function buildRequest(string[][] calldata args) virtual external returns (address);
    function verifyRadonRequest(string[][] calldata args) virtual external returns (bytes32);
}