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// Copyright (c) The Diem Core Contributors
// SPDX-License-Identifier: Apache-2.0

// Copyright 2021 Conflux Foundation. All rights reserved.
// Conflux is free software and distributed under GNU General Public License.
// See http://www.gnu.org/licenses/

use diem_crypto::HashValue;
use serde::{Deserialize, Serialize};
use thiserror::Error;

#[derive(Debug, Deserialize, Error, PartialEq, Serialize)]
/// Different reasons for proposal rejection
pub enum Error {
    #[error("Cannot find speculation result for block id {0}")]
    BlockNotFound(HashValue),

    #[error("Internal error: {:?}", error)]
    InternalError { error: String },

    #[error("Serialization error: {0}")]
    SerializationError(String),
}

impl From<anyhow::Error> for Error {
    fn from(error: anyhow::Error) -> Self {
        Self::InternalError {
            error: format!("{}", error),
        }
    }
}

impl From<bcs::Error> for Error {
    fn from(error: bcs::Error) -> Self {
        Self::SerializationError(format!("{}", error))
    }
}

impl From<diem_secure_net::Error> for Error {
    fn from(error: diem_secure_net::Error) -> Self {
        Self::InternalError {
            error: format!("{}", error),
        }
    }
}