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use crate::{
    id_targeted::IdTargeted, pool_item::PoolItem, request_response::RequestResponse,
    request_with_response::RequestWithResponse,
};

use super::{ThreadEchoResponse, ThreadRequestResponse};

/// For debug purposes only send a message to a thread within the thread pool
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct ThreadEchoRequest {
    thread_id: u64,
    message: String,
}

impl<P> RequestWithResponse<P> for ThreadEchoRequest
where
    P: PoolItem,
{
    type Response = ThreadEchoResponse;
}

impl IdTargeted for ThreadEchoRequest {
    fn id(&self) -> u64 {
        self.thread_id
    }
}

impl ThreadEchoRequest {
    pub fn new(thread_id: u64, message: String) -> Self {
        Self { thread_id, message }
    }

    pub fn thread_id(&self) -> u64 {
        self.thread_id
    }

    pub fn message(&self) -> &str {
        self.message.as_ref()
    }
}

impl<P> From<ThreadEchoRequest> for ThreadRequestResponse<P>
where
    P: PoolItem,
{
    fn from(request: ThreadEchoRequest) -> Self {
        ThreadRequestResponse::ThreadEcho(RequestResponse::<P, ThreadEchoRequest>::Request(request))
    }
}

#[cfg(test)]
mod tests {
    use crate::{
        id_targeted::IdTargeted, thread_request_response::thread_echo_request::ThreadEchoRequest,
    };

    #[test]
    fn request_id_2_id_returns_2() {
        let target = ThreadEchoRequest::new(2, "".to_string());

        assert_eq!(2, target.id());
    }

    #[test]
    fn request_id_1_id_returns_1() {
        let target = ThreadEchoRequest::new(1, "".to_string());

        assert_eq!(1, target.id());
    }
}