// SPDX-License-Identifier: MIT
pragma solidity >=0.7.6 <0.9;
pragma abicoder v2;

import "./ftso/interface/IIFtso.sol";
import "./genesis/interface/IFtsoRegistryGenesis.sol";

interface IFtsoRegistry is IFtsoRegistryGenesis {

    struct PriceInfo {
        uint256 ftsoIndex;
        uint256 price;
        uint256 decimals;
        uint256 timestamp;
    }

    function getFtso(uint256 _ftsoIndex) external view returns(IIFtso _activeFtsoAddress);
    function getFtsoBySymbol(string memory _symbol) external view returns(IIFtso _activeFtsoAddress);
    function getSupportedIndices() external view returns(uint256[] memory _supportedIndices);
    function getSupportedSymbols() external view returns(string[] memory _supportedSymbols);
    function getSupportedFtsos() external view returns(IIFtso[] memory _ftsos);
    function getFtsoIndex(string memory _symbol) external view returns (uint256 _assetIndex);
    function getFtsoSymbol(uint256 _ftsoIndex) external view returns (string memory _symbol);
    function getCurrentPrice(uint256 _ftsoIndex) external view returns(uint256 _price, uint256 _timestamp);
    function getCurrentPrice(string memory _symbol) external view returns(uint256 _price, uint256 _timestamp);
    function getCurrentPriceWithDecimals(uint256 _assetIndex) external view
        returns(uint256 _price, uint256 _timestamp, uint256 _assetPriceUsdDecimals);
    function getCurrentPriceWithDecimals(string memory _symbol) external view
        returns(uint256 _price, uint256 _timestamp, uint256 _assetPriceUsdDecimals);

    function getAllCurrentPrices() external view returns (PriceInfo[] memory);
    function getCurrentPricesByIndices(uint256[] memory _indices) external view returns (PriceInfo[] memory);
    function getCurrentPricesBySymbols(string[] memory _symbols) external view returns (PriceInfo[] memory);

    function getSupportedIndicesAndFtsos() external view 
        returns(uint256[] memory _supportedIndices, IIFtso[] memory _ftsos);

    function getSupportedSymbolsAndFtsos() external view 
        returns(string[] memory _supportedSymbols, IIFtso[] memory _ftsos);

    function getSupportedIndicesAndSymbols() external view 
        returns(uint256[] memory _supportedIndices, string[] memory _supportedSymbols);

    function getSupportedIndicesSymbolsAndFtsos() external view 
        returns(uint256[] memory _supportedIndices, string[] memory _supportedSymbols, IIFtso[] memory _ftsos);
}