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

/**
 * FdcRequestFeeConfigurations interface.
 */
interface IFdcRequestFeeConfigurations {
    // Event emitted when a type and source price is set.
    event TypeAndSourceFeeSet(
        bytes32 indexed attestationType,
        bytes32 indexed source,
        uint256 fee
    );

    // Event emitted when a type and source price is removed.
    event TypeAndSourceFeeRemoved(
        bytes32 indexed attestationType,
        bytes32 indexed source
    );

    /**
     * Method to get the base fee for an attestation request. It reverts if the request is not supported.
     * @param _data ABI encoded attestation request
     */
    function getRequestFee(
        bytes calldata _data
    ) external view returns (uint256);
}