// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you 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 crate::IggyError;
use serde::{Deserialize, Serialize};
use strum::{AsRefStr, Display as StrumDisplay, EnumString};

/// Current status of a node
#[derive(
    Debug, Serialize, Deserialize, PartialEq, Clone, Copy, AsRefStr, StrumDisplay, EnumString,
)]
#[serde(rename_all = "lowercase")]
#[strum(serialize_all = "lowercase")]
#[repr(u8)]
pub enum ClusterNodeStatus {
    /// Node is healthy and responsive
    Healthy,
    /// Node is starting up
    Starting,
    /// Node is shutting down
    Stopping,
    /// Node is unreachable
    Unreachable,
    /// Node is in maintenance mode
    Maintenance,
    /// Node is unknown
    Unknown,
}

impl TryFrom<u8> for ClusterNodeStatus {
    type Error = IggyError;

    fn try_from(value: u8) -> Result<Self, Self::Error> {
        match value {
            v if v == ClusterNodeStatus::Healthy as u8 => Ok(ClusterNodeStatus::Healthy),
            v if v == ClusterNodeStatus::Starting as u8 => Ok(ClusterNodeStatus::Starting),
            v if v == ClusterNodeStatus::Stopping as u8 => Ok(ClusterNodeStatus::Stopping),
            v if v == ClusterNodeStatus::Unreachable as u8 => Ok(ClusterNodeStatus::Unreachable),
            v if v == ClusterNodeStatus::Maintenance as u8 => Ok(ClusterNodeStatus::Maintenance),
            _ => Err(IggyError::InvalidCommand),
        }
    }
}
