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//!
//! # API Requests
//!
//! Maps SC Api Requests with their associated Responses.
//!

use std::convert::{TryInto};
use std::io::Error as IoError;

use tracing::debug;

use dataplane::bytes::Buf;
use dataplane::api::{ApiMessage};
use dataplane::api::RequestHeader;
use dataplane::api::RequestMessage;

use dataplane::api::api_decode;
use dataplane::derive::Encode;
use dataplane::versions::ApiVersionsRequest;

use super::objects::*;
use super::AdminPublicApiKey;

#[derive(Debug, Encode)]
pub enum AdminPublicRequest {
    // Mixed
    ApiVersionsRequest(RequestMessage<ApiVersionsRequest>),
    CreateRequest(RequestMessage<CreateRequest>),
    DeleteRequest(RequestMessage<DeleteRequest>),
    ListRequest(RequestMessage<ListRequest>),
    WatchRequest(RequestMessage<WatchRequest>),
}

impl Default for AdminPublicRequest {
    fn default() -> Self {
        Self::ApiVersionsRequest(RequestMessage::<ApiVersionsRequest>::default())
    }
}

impl ApiMessage for AdminPublicRequest {
    type ApiKey = AdminPublicApiKey;

    fn decode_with_header<T>(src: &mut T, header: RequestHeader) -> Result<Self, IoError>
    where
        Self: Default + Sized,
        Self::ApiKey: Sized,
        T: Buf,
    {
        let api_key = header.api_key().try_into()?;
        debug!(
            "decoding admin public request from: {} api: {:#?}",
            header.client_id(),
            api_key
        );
        match api_key {
            AdminPublicApiKey::ApiVersion => api_decode!(Self, ApiVersionsRequest, src, header),

            AdminPublicApiKey::Create => api_decode!(Self, CreateRequest, src, header),
            AdminPublicApiKey::Delete => api_decode!(Self, DeleteRequest, src, header),
            AdminPublicApiKey::List => api_decode!(Self, ListRequest, src, header),
            AdminPublicApiKey::Watch => api_decode!(Self, WatchRequest, src, header),
        }
    }
}