use std::sync::Arc;
use std::sync::atomic::AtomicBool;
use tokio::spawn;
use tokio::sync::Mutex;
use anyhow::Result;
use tokio_tungstenite::tungstenite::Message;
use tracing::{error, info};
use crate::data_manager::DataManager;
use crate::exchange::mexc_spot_ws::{MexcSpotWs, MexcSpotWsSubscribeType, MexcSpotWsType};
use crate::exchange::response_base::Response;
use crate::utils::log_setup::setup_logging;

pub struct WsManager {
    pub symbols: Vec<String>,
    pub data_manager_am: Arc<Mutex<DataManager>>,
    pub running: Arc<AtomicBool>,
}

impl WsManager {
    pub fn new(symbols: Vec<String>, data_manager_am: Arc<Mutex<DataManager>>, running: Arc<AtomicBool>) -> WsManager {
        WsManager {
            symbols: symbols[0..100].to_owned(),
            data_manager_am,
            running
        }
    }

    pub async fn subscribe_all(&mut self) -> Result<()> {
        // 每批最大交易对数量
        const BATCH_SIZE: usize = 15;

        // 计算总共需要多少批次
        let num_batches = (self.symbols.len() + BATCH_SIZE - 1) / BATCH_SIZE;

        let fun = move |response: Response| {
            if response.code != 200 {
                error!("{}", serde_json::to_string_pretty(&response.data).unwrap());
            }

            async move {}
        };

        for i in 0..num_batches {
            // 计算当前批次的起始和结束索引
            let start_index = i * BATCH_SIZE;
            let end_index = (start_index + BATCH_SIZE).min(self.symbols.len());

            // 获取当前批次的交易对
            let current_batch_symbols = self.symbols[start_index..end_index].to_vec();
            info!("正在创建 [{}, {}) 的连接...", start_index, end_index);

            // 这个通道主要是为了后面给这个ws发送消息
            let (write_tx, write_rx) = futures_channel::mpsc::unbounded::<Message>();
            let write_tx_am = Arc::new(Mutex::new(write_tx));

            // 异步去订阅阻塞
            let running = self.running.clone();
            spawn(async move {
                let mut ws = MexcSpotWs::new_with_tag("Mexc".to_string(), None, MexcSpotWsType::PublicAndPrivate);
                ws.set_subscribe(vec![
                    MexcSpotWsSubscribeType::PuFuturesRecords("Min1".to_string()),
                    MexcSpotWsSubscribeType::PuFuturesDepth
                ]);

                ws.set_symbols(current_batch_symbols);

                // 链接
                ws.ws_connect_async(running, fun, &write_tx_am, write_rx)
                    .await
                    .expect("链接失败");
            });
        }

        Ok(())
    }
}