use std::collections::HashMap;
use std::str::FromStr;
use rust_decimal::Decimal;
use rust_decimal::prelude::ToPrimitive;
use tokio::sync::MutexGuard;
use standard::{Depth, ForceOrder, Record, SimpleDepth, SpecialDepth, SpecialTrade, Trade};
use crate::json_db_utils::{generate_file_path, minute_to_date, write_to_file};

pub type DepthMap = HashMap<String, Vec<SpecialDepth>>;
pub type SimpleDepthMap = HashMap<String, Vec<SimpleDepth>>;
pub type TradeMap = HashMap<String, Vec<SpecialTrade>>;
pub type RecordMap = HashMap<String, Record>;
pub type ForceOrderMap = HashMap<String, Vec<ForceOrder>>;

// 更新订单流数据
pub async fn update_trade(new_trade: &Trade, mut trades_map: MutexGuard<'_, TradeMap>, exchange: &str) {
    if let Some(trades) = trades_map.get_mut(new_trade.symbol.as_str()) {
        if let Some(last_trade) = trades.last() {
            // 这里的last_trade.0是以元组形式进行访问。
            let last_trade_minutes = i64::from_str(last_trade.inner()[1].as_str()).unwrap() / 60000;    // 将毫秒转换成分钟数
            let new_trade_minutes = new_trade.time.to_i64().unwrap() / 60000;                           // 同上

            // 如果分钟数不同，则清空列表并添加新的trade
            if last_trade_minutes != new_trade_minutes {
                let trades_json = serde_json::to_string(trades).unwrap();
                let date_str = minute_to_date(last_trade_minutes);
                let path = generate_file_path(exchange, date_str.as_str(), new_trade.symbol.as_str(), "trades", last_trade_minutes);

                // info!(?path);

                write_to_file(trades_json, path).await;

                trades.clear();
            }
        }
        trades.push(SpecialTrade::new(&new_trade));
    } else {
        // 如果该symbol不存在，则创建新的Vec并添加trade
        trades_map.insert(new_trade.symbol.clone(), vec![SpecialTrade::new(&new_trade)]);
    }
}

// 更新k线
pub async fn update_record(new_record: &Record, mut records_map: MutexGuard<'_, RecordMap>, exchange: &str) {
    if new_record.time.eq(&Decimal::ZERO) {
        return;
    }

    // 如果k线记录存在于map，则进行一系列操作，用于保存map
    if let Some(record) = records_map.get_mut(new_record.symbol.as_str()) {
        let last_trade_minutes = record.time.to_i64().unwrap() / 60000;             // 将毫秒转换成分钟数
        let new_trade_minutes = new_record.time.to_i64().unwrap() / 60000;          // 同上

        // 如果分钟数不同，则清空列表并添加新的depth
        if last_trade_minutes != new_trade_minutes {
            let record_json = serde_json::to_string(record).unwrap();
            let date_str = minute_to_date(last_trade_minutes);
            let path = generate_file_path(exchange, date_str.as_str(), new_record.symbol.as_str(), "record", last_trade_minutes);

            write_to_file(record_json, path).await;
        }
    }

    records_map.insert(new_record.symbol.clone(), new_record.clone());
}

// 更新爆仓信息
pub async fn update_force_order(new_force_order: ForceOrder, mut force_order_map: MutexGuard<'_, ForceOrderMap>, exchange: &str) {
    if let Some(force_order_list) = force_order_map.get_mut(new_force_order.symbol.as_str()) {
        if let Some(force_order) = force_order_list.last() {
            let last_force_minutes = force_order.time.to_i64().unwrap() / 60000;           // 将毫秒转换成分钟数
            let new_force_minutes = new_force_order.time.to_i64().unwrap() / 60000;        // 同上

            // 如果分钟数不同，则清空列表并添加新的trade
            if last_force_minutes != new_force_minutes {
                let force_order_list_json = serde_json::to_string(force_order_list).unwrap();
                let date_str = minute_to_date(last_force_minutes);
                let path = generate_file_path(exchange, date_str.as_str(), new_force_order.symbol.as_str(), "force_order", last_force_minutes);

                write_to_file(force_order_list_json, path).await;

                force_order_list.clear();
            }
        }
        force_order_list.push(new_force_order);
    } else {
        // 如果该symbol不存在，则创建新的Vec并添加trade
        force_order_map.insert(new_force_order.symbol.clone(), vec![new_force_order]);
    }
}

// 更新深度数据
pub async fn update_depth(new_depth: &Depth, mut depth_map: MutexGuard<'_, DepthMap>, exchange: &str) {
    if let Some(depths) = depth_map.get_mut(new_depth.symbol.as_str()) {
        if let Some(last_depth) = depths.last() {
            let last_depth_minutes = last_depth.t.to_i64().unwrap() / 60000; // 将毫秒转换成分钟数
            let new_depth_minutes = new_depth.time.to_i64().unwrap() / 60000; // 同上

            // 如果分钟数不同，则清空列表并添加新的depth
            if last_depth_minutes != new_depth_minutes {
                let depths_json = serde_json::to_string(depths).unwrap();
                let date_str = minute_to_date(last_depth_minutes);
                let path = generate_file_path(exchange, date_str.as_str(), new_depth.symbol.as_str(), "order_book", last_depth_minutes);

                write_to_file(depths_json, path).await;

                depths.clear();
            }
        }
        depths.push(SpecialDepth::new(&new_depth));
    } else {
        // 如果该symbol不存在，则创建新的Vec并添加depth
        depth_map.insert(new_depth.symbol.clone(), vec![SpecialDepth::new(&new_depth)]);
    }
}

// 更新简易深度数据
pub async fn update_simple_depth(new_depth: &SimpleDepth, mut simple_depth_map: MutexGuard<'_, SimpleDepthMap>, exchange: &str) {
    if let Some(depths) = simple_depth_map.get_mut(new_depth.symbol.as_str()) {
        if let Some(last_depth) = depths.last() {
            let last_depth_minutes = last_depth.time.to_i64().unwrap() / 60000; // 将毫秒转换成分钟数
            let new_depth_minutes = new_depth.time.to_i64().unwrap() / 60000; // 同上

            // 如果分钟数不同，则清空列表并添加新的depth
            if last_depth_minutes != new_depth_minutes {
                let depths_json = serde_json::to_string(depths).unwrap();
                let date_str = minute_to_date(last_depth_minutes);
                let path = generate_file_path(exchange, date_str.as_str(), new_depth.symbol.as_str(), "order_book_simple", last_depth_minutes);

                write_to_file(depths_json, path).await;

                depths.clear();
            }
        }

        // 去重
        if let Some(last_depth) = depths.last() {
            if last_depth.size != new_depth.size || last_depth.a1 != new_depth.a1 || last_depth.b1 != new_depth.b1 {
                depths.push(new_depth.clone());
            }
        } else {
            depths.push(new_depth.clone());
        }
    } else {
        // 如果该symbol不存在，则创建新的Vec并添加depth
        simple_depth_map.insert(new_depth.symbol.clone(), vec![new_depth.clone()]);
    }
}