// SPDX-License-Identifier: UNLICENSED
// Gearbox Protocol. Generalized leverage for DeFi protocols
// (c) Gearbox Holdings, 2022
pragma solidity ^0.8.10;

import { Strings } from "@openzeppelin/contracts/utils/Strings.sol";
import { StringUtils } from "./StringUtils.sol";
import { IERC20Metadata } from "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol";

/// @notice Designed for test purposes only
library ParseLib {
    using Strings for uint256;
    using StringUtils for string;

    function add(
        string memory init,
        string memory name,
        address addr
    ) internal pure returns (string memory) {
        return init.concat(name, uint256(uint160(addr)).toHexString(20));
    }

    function add(
        string memory init,
        string memory name,
        uint256 value
    ) internal pure returns (string memory) {
        return init.concat(name, value.toString());
    }

    function add_amount_decimals(
        string memory init,
        string memory name,
        uint256 value,
        uint8 decimals
    ) internal pure returns (string memory) {
        return init.concat(name, toFixString(value, decimals));
    }

    function add_amount_token(
        string memory init,
        string memory name,
        uint256 value,
        address token
    ) internal view returns (string memory) {
        return
            add_amount_decimals(
                init,
                name,
                value,
                IERC20Metadata(token).decimals()
            );
    }

    function add_token(
        string memory init,
        string memory name,
        address addr
    ) internal view returns (string memory) {
        return init.concat(name, IERC20Metadata(addr).symbol());
    }

    function toFixString(uint256 value, uint8 decimals)
        internal
        pure
        returns (string memory)
    {
        uint8 divider = (decimals > 4) ? 4 : decimals;
        uint256 biggerPart = value / (10**(decimals));
        uint256 smallerPart = value *
            (10**divider) -
            biggerPart *
            (10**(decimals + divider));
        return biggerPart.toString().concat(".", smallerPart.toString());
    }
}