// SPDX-License-Identifier: MIT
pragma solidity 0.6.12;
import "@boringcrypto/boring-solidity/contracts/libraries/BoringMath.sol";
import "../interfaces/IOracle.sol";

// WARNING: This oracle is only for testing, please use PeggedOracle for a fixed value oracle
contract OracleMock is IOracle {
    using BoringMath for uint256;

    uint256 public rate;
    bool public success;

    constructor() public {
        success = true;
    }

    function set(uint256 rate_) public {
        // The rate can be updated.
        rate = rate_;
    }

    function setSuccess(bool val) public {
        success = val;
    }

    function getDataParameter() public pure returns (bytes memory) {
        return abi.encode("0x0");
    }

    // Get the latest exchange rate
    function get(bytes calldata) public override returns (bool, uint256) {
        return (success, rate);
    }

    // Check the last exchange rate without any state changes
    function peek(bytes calldata) public view override returns (bool, uint256) {
        return (success, rate);
    }

    function peekSpot(bytes calldata) public view override returns (uint256) {
        return rate;
    }

    function name(bytes calldata) public view override returns (string memory) {
        return "Test";
    }

    function symbol(bytes calldata) public view override returns (string memory) {
        return "TEST";
    }
}