use ws::{connect, CloseCode};
use std::rc::Rc;
use std::cell::Cell;
use serde_json::{Value};
use crate::message::query::order_book::*;
use crate::message::common::command_trait::CommandConversion;
use crate::base::misc::util::downcast_to_string;
use crate::Config;
pub trait OrderBookI {
fn request_order_book<F>(&self, config: Config, gets: OrderBookItem, pays: OrderBookItem, op: F)
where F: Fn(Result<RequestOrderBookResponse, OrderBookSideKick>) ;
}
pub struct OrderBook {}
impl OrderBook {
pub fn new() -> Self {
OrderBook {
}
}
}
impl OrderBookI for OrderBook {
fn request_order_book<F>(&self, config: Config, gets: OrderBookItem, pays: OrderBookItem, op: F)
where F: Fn(Result<RequestOrderBookResponse, OrderBookSideKick>) {
let info = Rc::new(Cell::new("".to_string()));
let gets_rc = Rc::new(Cell::new(gets));
let pays_rc = Rc::new(Cell::new(pays));
connect(config.addr, |out| {
let copy = info.clone();
let gets = gets_rc.clone();
let pays = pays_rc.clone();
if let Ok(command) = RequestOrderBookCommand::with_params(gets.take(), pays.take()).to_string() {
out.send(command).unwrap();
}
move |msg: ws::Message| {
let c = msg.as_text()?;
copy.set(c.to_string());
out.close(CloseCode::Normal)
}
}).unwrap();
let resp = downcast_to_string(info);
if let Ok(x) = serde_json::from_str(&resp) as Result<Value, serde_json::error::Error> {
if let Some(status) = x["status"].as_str() {
if status == "success" {
let x: String = x["result"].to_string();
if let Ok(v) = serde_json::from_str(&x) as Result<RequestOrderBookResponse, serde_json::error::Error> {
op(Ok(v))
}
} else {
if let Ok(v) = serde_json::from_str(&x.to_string()) as Result<OrderBookSideKick, serde_json::error::Error> {
op(Err(v))
}
}
}
}
}
}