// Source: contracts/interfaces/IAxelarAmplifierGatewayAuth.sol

pragma solidity ^0.8.0;

// SPDX-License-Identifier: MIT

// File contracts/types/WeightedMultisigTypes.sol

/**
 * @notice This struct represents the weighted signer
 * @param signer The address of the weighted signer
 * @param weight The weight of the weighted singer
 */
struct WeightedSigner {
    address signer;
    uint128 weight;
}

/**
 * @notice This struct represents the weighted signers payload
 * @param signers The list of weighted signers
 * @param threshold The threshold for the weighted signers
 * @param nonce The nonce to distinguish different weighted signer sets
 */
struct WeightedSigners {
    WeightedSigner[] signers;
    uint128 threshold;
    bytes32 nonce;
}

/**
 * @notice This struct represents a proof for a message from the weighted signers
 * @param signers The weighted signers
 * @param signatures The list of signatures
 */
struct Proof {
    WeightedSigners signers;
    bytes[] signatures;
}

// File contracts/interfaces/IAxelarAmplifierGatewayAuth.sol

interface IAxelarAmplifierGatewayAuth {
    /**
     * @notice This function takes messageHash and proof data and reverts if proof is invalid
     * @param dataHash The hash of the message that was signed
     * @param proof The data containing signers with signatures
     * @return isLatestSigners True if provided signers are the current ones
     */
    function validateProof(bytes32 dataHash, Proof calldata proof) external view returns (bool isLatestSigners);

    /**
     * @notice This function rotates the current signers with a new set
     * @param newSigners The data containing the new signers and their weights
     */
    function rotateSigners(WeightedSigners calldata newSigners) external;
}