// Copyright 2022 RisingWave Labs
//
// 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.

use anyhow::anyhow;
use risingwave_pb::PbFieldNotFound;
use risingwave_rpc_client::error::ToTonicStatus;
use thiserror::Error;

pub type MetadataModelResult<T> = std::result::Result<T, MetadataModelError>;

#[derive(Error, Debug)]
pub enum MetadataModelError {
    #[error("Pb decode error: {0}")]
    PbDecode(#[from] prost::DecodeError),

    #[error(transparent)]
    InternalError(
        #[from]
        #[backtrace]
        anyhow::Error,
    ),
}

impl From<PbFieldNotFound> for MetadataModelError {
    fn from(p: PbFieldNotFound) -> Self {
        MetadataModelError::InternalError(anyhow::anyhow!(
            "Failed to decode prost: field not found `{}`",
            p.0
        ))
    }
}

impl From<MetadataModelError> for tonic::Status {
    fn from(e: MetadataModelError) -> Self {
        e.to_status(tonic::Code::Internal, "meta")
    }
}

impl MetadataModelError {
    pub fn internal(msg: impl ToString) -> Self {
        MetadataModelError::InternalError(anyhow!(msg.to_string()))
    }
}
