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use std::fmt::Debug;

use futures_util::io::{AsyncRead, AsyncWrite};
use async_trait::async_trait;
use serde::{Deserialize, Serialize};

use fluvio_controlplane_metadata::extended::ObjectType;
use fluvio_socket::InnerFlvSocket;

use super::AuthError;

#[derive(Debug, Clone, PartialEq, Hash, Eq, Deserialize, Serialize)]
pub enum TypeAction {
    Create,
    Read,
}

pub enum InstanceAction {
    Delete,
}

#[async_trait]
pub trait AuthContext {
    /// check if any allow type specific action can be allowed
    async fn allow_type_action(
        &self,
        ty: ObjectType,
        action: TypeAction,
    ) -> Result<bool, AuthError>;

    /// check if specific instance of action can be permitted
    async fn allow_instance_action(
        &self,
        ty: ObjectType,
        action: InstanceAction,
        key: &str,
    ) -> Result<bool, AuthError>;
}

#[async_trait]
pub trait Authorization {
    type Stream: AsyncRead + AsyncWrite + Unpin + Send;
    type Context: AuthContext;

    /// create auth context
    async fn create_auth_context(
        &self,
        socket: &mut InnerFlvSocket<Self::Stream>,
    ) -> Result<Self::Context, AuthError>;
}