/*******************************************************************************
 *   (c) 2023 Zondax AG
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 ********************************************************************************/
// THIS CODE WAS SECURITY REVIEWED BY KUDELSKI SECURITY, BUT NOT FORMALLY AUDITED

// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.17;

import "@ensdomains/buffer/contracts/Buffer.sol";

/// @notice This library implement the leb128
/// @author Zondax AG
library Leb128 {
    using Buffer for Buffer.buffer;

    /// @notice encode a unsigned integer 64bits into bytes
    /// @param value the actor ID to encode
    /// @return result return the value in bytes
    function encodeUnsignedLeb128FromUInt64(uint64 value) internal pure returns (Buffer.buffer memory result) {
        while (true) {
            uint64 byte_ = value & 0x7f;
            value >>= 7;
            if (value == 0) {
                result.appendUint8(uint8(byte_));
                return result;
            }
            result.appendUint8(uint8(byte_ | 0x80));
        }
    }
}