use async_trait::async_trait;
use bft_json_crdt::json_crdt::SignedOp;
use ezsockets::ClientConfig;
use tokio::fs::File;
use tokio::io;
use tokio::sync::mpsc;

use crate::{node::SideNode, utils};

pub(crate) struct WebSocketClient {
    incoming_sender: mpsc::Sender<SignedOp>,
}

impl WebSocketClient {
    pub(crate) fn new(incoming_sender: mpsc::Sender<SignedOp>) -> Self {
        Self { incoming_sender }
    }

    /// Start the websocket client
    pub(crate) async fn start(node: &mut SideNode, incoming_sender: mpsc::Sender<SignedOp>) {
        tracing_subscriber::fmt::init();
        let config = ClientConfig::new("ws://localhost:8080/websocket");
        let (handle, future) =
            ezsockets::connect(|_client| WebSocketClient { incoming_sender }, config).await;
        tokio::spawn(async move {
            future.await.unwrap();
        });
        let stdin = tokio::io::stdin();
        // let lines = stdin.lock().lines();
        //
        let mut reader = FramedRead::new(stdin, LinesCodec::new());
        let line = reader.next().await.transpose()?.unwrap();
        let signed_op = if let "exit" = line.as_str() {
            break;
        } else if let "trace" = line.as_str() {
            node.trace_crdt();
            continue;
        } else {
            let fake = utils::fake_transaction("foo123".to_string());
            node.add_transaction_local(fake)
        };
        tracing::info!("sending {:?}", signed_op);
        let json = serde_json::to_string(&signed_op).unwrap();
        handle.text(json).unwrap();
    }
}

#[async_trait]
impl ezsockets::ClientExt for WebSocketClient {
    type Call = ();

    async fn on_text(&mut self, text: String) -> Result<(), ezsockets::Error> {
        tracing::info!("received message: {text}");
        let incoming: bft_json_crdt::json_crdt::SignedOp = serde_json::from_str(&text).unwrap();
        tracing::info!("received signed op: {incoming:?}");
        self.incoming_sender.send(incoming).await.unwrap();
        Ok(())
    }

    async fn on_binary(&mut self, bytes: Vec<u8>) -> Result<(), ezsockets::Error> {
        tracing::info!("received bytes: {bytes:?}");
        Ok(())
    }

    async fn on_call(&mut self, call: Self::Call) -> Result<(), ezsockets::Error> {
        let () = call;
        Ok(())
    }
}