use std::error::Error;
use wasm_bindgen::prelude::*;
use starkingdoms_protocol::MessageC2S;
use crate::CLIENT;
use futures::SinkExt;
use starkingdoms_protocol::message_c2s::MessageC2SChat;

#[wasm_bindgen]
// TODO: Switch to async-aware mutexes
#[allow(clippy::await_holding_lock)]
pub async fn send_chat(message: &str) -> Result<(), JsError> {
    let client_data = &mut CLIENT.write()?.client_data;

    if let Some(data) = client_data {
        let msg = MessageC2S::Chat(MessageC2SChat {
            message: message.to_string(),
            special_fields: Default::default(),
        }).try_into().map_err(|e: Box<dyn Error> | JsError::new(&e.to_string()))?;
        send!(data.tx, msg).await?;
    } else {
        return Err(JsError::new("Client not yet connected to server"));
    }

    Ok(())
}