use std::collections::BTreeMap;

use chrono::Utc;
use reqwest::{Client, Proxy};
use reqwest::header::HeaderMap;
use ring::hmac;
use rust_decimal::Decimal;
use rust_decimal::prelude::FromPrimitive;
use rust_decimal_macros::dec;
use serde_json::{json, Value};
use tracing::{error, info, trace};

use crate::http_tool::RestTool;
use crate::proxy;
use crate::response_base::ResponseData;

#[derive(Clone, Debug)]
pub struct PhemexSwapRest {
    pub tag: String,
    base_url: String,
    /*******参数*/
    //是否需要登录
    //登录所需参数
    login_param: BTreeMap<String, String>,
    delays: Vec<i64>,
    max_delay: i64,
    avg_delay: Decimal,

}

impl PhemexSwapRest {
    /*******************************************************************************************************/
    /*****************************************获取一个对象****************************************************/
    /*******************************************************************************************************/

    pub fn new(is_colo: bool, login_param: BTreeMap<String, String>) -> PhemexSwapRest
    {
        return PhemexSwapRest::new_with_tag("default-PhemexSwapRest".to_string(), is_colo, login_param);
    }
    pub fn new_with_tag(tag: String, is_colo: bool, login_param: BTreeMap<String, String>) -> PhemexSwapRest {
        let base_url = if is_colo {
            let z = "https://api.phemex.com".to_string();
            info!("开启高速(未配置，走普通：{})通道",z);
            z
        } else {
            let z = "https://api.phemex.com".to_string();
            info!("走普通通道：{}",z);
            z
        };


        /*****返回结构体*******/
        PhemexSwapRest {
            tag,
            base_url,
            login_param,
            delays: vec![],
            max_delay: 0,
            avg_delay: dec!(0.0),
        }
    }

    /*******************************************************************************************************/
    /*****************************************rest请求函数********************************************************/
    /*******************************************************************************************************/
    //服务器时间
    pub async fn get_server(&mut self) -> ResponseData {
        let params = json!({});
        let data = self.request("GET".to_string(),
                                "".to_string(),
                                "/public/time".to_string(),
                                false,
                                params,
        ).await;
        data
    }


    //查詢合約基礎信息
    pub async fn get_market(&mut self, params: Value) -> ResponseData {
        let data = self.request("GET".to_string(),
                                "".to_string(),
                                "/public/products".to_string(),
                                false,
                                params,
        ).await;
        data
    }

    //查詢ticker(Query 24 ticker)
    pub async fn get_ticker(&mut self, params: Value) -> ResponseData {
        let data = self.request("GET".to_string(),
                                "".to_string(),
                                "/md/v3/ticker/24hr".to_string(),
                                false,
                                params,
        ).await;
        data
    }


    //持仓(查询交易账户和仓位)
    pub async fn get_account_and_positions(&mut self, params: Value) -> ResponseData {
        let data = self.request("GET".to_string(),
                                "".to_string(),
                                "/g-accounts/accountPositions".to_string(),
                                true,
                                params,
        ).await;
        data
    }

    //仓位设置(Switch Position Mode Synchronously)
    pub async fn set_target_pos_mode(&mut self, params: Value) -> ResponseData {
        let data = self.request("PUT".to_string(),
                                "".to_string(),
                                "/g-positions/switch-pos-mode-sync".to_string(),
                                true,
                                params,
        ).await;
        data
    }

    //设置杠杆（Set Leverage 设置杠杆）
    pub async fn set_leverage(&mut self, params: Value) -> ResponseData {
        let data = self.request("PUT".to_string(),
                                "".to_string(),
                                "/g-positions/leverage".to_string(),
                                true,
                                params,
        ).await;
        data
    }

    //下单
    pub async fn orders(&mut self, params: Value) -> ResponseData {
        let data = self.request("PUT".to_string(),
                                "".to_string(),
                                "/g-orders/create".to_string(),
                                true,
                                params,
        ).await;
        data
    }


    //撤单
    pub async fn cancel_order(&mut self, params: Value) -> ResponseData {
        let data = self.request("DELETE".to_string(),
                                "".to_string(),
                                "/g-orders/cancel".to_string(),
                                true,
                                params,
        ).await;
        data
    }

    //撤销所有
    pub async fn cancel_order_all(&mut self, params: Value) -> ResponseData {
        let data = self.request("DELETE".to_string(),
                                "".to_string(),
                                "/g-orders/all".to_string(),
                                true,
                                params,
        ).await;
        data
    }

    //订单列表
    pub async fn get_orders(&mut self, params: Value) -> ResponseData {
        let data = self.request("GET".to_string(),
                                "".to_string(),
                                "/api-data/g-futures/orders".to_string(),
                                true,
                                params,
        ).await;
        data
    }

    //根据id查询订单
    pub async fn get_orders_by_id(&mut self, params: Value) -> ResponseData {
        let data = self.request("GET".to_string(),
                                "".to_string(),
                                "/api-data/g-futures/orders/by-order-id".to_string(),
                                true,
                                params,
        ).await;
        data
    }

    /*******************************************************************************************************/
    /*****************************************工具函数********************************************************/
    /*******************************************************************************************************/
    pub fn get_delays(&self) -> Vec<i64> {
        self.delays.clone()
    }
    pub fn get_avg_delay(&self) -> Decimal {
        self.avg_delay.clone()
    }
    pub fn get_max_delay(&self) -> i64 {
        self.max_delay.clone()
    }
    fn get_delay_info(&mut self) {
        let last_100 = if self.delays.len() > 100 {
            self.delays[self.delays.len() - 100..].to_vec()
        } else {
            self.delays.clone()
        };

        let max_value = last_100.iter().max().unwrap();
        if max_value.clone().to_owned() > self.max_delay {
            self.max_delay = max_value.clone().to_owned();
        }

        let sum: i64 = last_100.iter().sum();
        let sum_v = Decimal::from_i64(sum).unwrap();
        let len_v = Decimal::from_u64(last_100.len() as u64).unwrap();
        self.avg_delay = (sum_v / len_v).round_dp(1);
        self.delays = last_100.clone().into_iter().collect();
    }
    //调用请求
    pub async fn request(&mut self,
                         method: String,
                         prefix_url: String,
                         request_url: String,
                         is_login: bool,
                         params_json: Value) -> ResponseData
    {
        trace!("login_param:{:?}", self.login_param);
        //解析账号信息
        let mut access_key = "".to_string();
        let mut secret_key = "".to_string();
        if self.login_param.contains_key("access_key") {
            access_key = self.login_param.get("access_key").unwrap().to_string();
        }
        if self.login_param.contains_key("secret_key") {
            secret_key = self.login_param.get("secret_key").unwrap().to_string();
        }
        let mut is_login_param = true;
        if access_key == "" || secret_key == "" {
            is_login_param = false
        }

        //每个接口都有的参数
        let timestamp = (Utc::now().timestamp_millis() + (60 * 1000)) / 1000;

        //请求类型不同，可能请求头body 不同
        let mut body = "".to_string();
        let mut params = "".to_string();
        let mut headers = HeaderMap::new();
        if method == "POST" {
            body = params_json.to_string();
        }
        if method == "GET" || method == "PUT" || method == "DELETE" {
            let z = params_json.to_string();
            params = RestTool::parse_params_to_str(z);
        }

        //是否需要登录-- 组装sing
        if is_login {
            if !is_login_param {
                let e = ResponseData::error(self.tag.clone(), "登录参数错误！".to_string());
                return e;
            } else {
                //需要登录-且登录参数齐全
                trace!("Path:{}{}", prefix_url.clone(),request_url.clone());
                trace!("Query:{}", params);
                trace!("Body:{}", body);
                trace!("expire:{}", timestamp.to_string());
                //组装sing
                let sing = Self::sign(secret_key.clone(),
                                      prefix_url.clone(),
                                      request_url.clone(),
                                      params.clone(),
                                      body.clone(),
                                      timestamp.to_string(),
                );
                trace!("Signature:{}", sing);
                //组装header
                headers.extend(Self::headers(sing, timestamp.to_string(), access_key));
            }
        }


        let start_time = chrono::Utc::now().timestamp_millis();
        let response = self.http_tool(
            format!("{}{}", prefix_url.clone(), request_url.clone()),
            method.to_string(),
            params.clone(),
            body.clone(),
            headers,
            is_login,
        ).await;

        let time_array = chrono::Utc::now().timestamp_millis() - start_time;
        self.delays.push(time_array);
        self.get_delay_info();

        response
    }

    pub fn headers(sign: String, timestamp: String, access_key: String) -> HeaderMap {
        let mut headers = HeaderMap::new();
        headers.insert("x-phemex-access-token", access_key.parse().unwrap());// 这是 Phemex 网站的 API-KEY（id 字段）
        headers.insert("x-phemex-request-expiry", timestamp.parse().unwrap());// 描述请求过期的 Unix EPoch 秒数，通常应为 (Now() + 1 分钟)
        headers.insert("x-phemex-request-signature", sign.parse().unwrap());// 这是 http 请求的 HMAC SHA256 签名。Secret 是 API Secret，其公式为：HMacSha256(URL Path + QueryString + Expiry + body)
        // let tracing = format!("4l_{:?}", Utc::now().timestamp_millis().to_string());
        // headers.insert("x-phemex-request-tracing", tracing.parse().unwrap());
        headers
    }
    pub fn sign(secret_key: String,
                prefix_url: String, request_url: String,
                url_param_str: String, body: String, timestamp: String) -> String
    {
        /*签名生成*/
        let base_url = format!("{}{}", prefix_url, request_url);
        // HMacSha256(URL Path + QueryString + Expiry + body)

        // 时间戳 + 请求类型+ 请求参数字符串
        let message = format!("{}{}{}{}", base_url, url_param_str, timestamp, body);
        trace!("message:{}",message);

        // 做签名
        let hmac_key = ring::hmac::Key::new(hmac::HMAC_SHA256, secret_key.as_bytes());
        let sign = hex::encode(hmac::sign(&hmac_key, message.as_bytes()).as_ref());
        sign
    }

    // async fn http_tool(&mut self, request_path: String, request_type: String, params: String, headers: HeaderMap) -> Result<ResponseData, reqwest::Error> {
    async fn http_tool(&mut self, request_path: String,
                       request_type: String,
                       params: String,
                       body: String,
                       headers: HeaderMap,
                       is_login: bool) -> ResponseData {
        /****请求接口与 地址*/
        let url = format!("{}{}", self.base_url.to_string(), request_path);
        let request_type = request_type.clone().to_uppercase();
        let addrs_url: String = if params == "" {
            url.clone()
        } else {
            format!("{}?{}", url.clone(), params)
        };

        trace!("url-----:{}",url.clone());
        trace!("addrs_url-----:{}",addrs_url.clone());
        trace!("params-----:{}",params.clone());
        trace!("body-----:{}",body.clone());
        trace!("headers-----:{:?}",headers.clone());
        trace!("request_type-----:{:?}",request_type.clone());


        let client = if is_login {
            let params = proxy::ParsingDetail::http_enable_proxy(Some("phemex"));
            let client_re;
            if params {
                let proxy_address = "socks5://127.0.0.1:17890"; // 替换为你的 SOCKS5 代理地址
                let proxy = Proxy::all(proxy_address).unwrap();
                client_re = Client::builder().proxy(proxy).build().unwrap();
            } else {
                client_re =  Client::new()
            }
            client_re
        } else {
            proxy::ParsingDetail::http_enable_proxy(None);
            Client::new()
        };
        let request_builder = match request_type.as_str() {
            "GET" => client.get(addrs_url.clone()).headers(headers),
            "POST" => client.post(url.clone()).body(body).headers(headers),
            "DELETE" => client.delete(addrs_url.clone()).headers(headers),
            "PUT" => client.put(addrs_url.clone()).headers(headers),
            _ => {
                panic!("{}", format!("错误的请求类型:{}", request_type.clone()))
            }
        };


        // 读取响应的内容
        let response = request_builder.send().await.unwrap();
        let is_success = response.status().is_success(); // 先检查状态码
        let text = response.text().await.unwrap();
        // trace!("text:{:?}",text);
        return if is_success {
            self.on_success_data(&text)
        } else {
            self.on_error_data(&text, &addrs_url, &params)
        };
    }
    pub fn on_success_data(&mut self, text: &String) -> ResponseData {
        let json_value = serde_json::from_str::<Value>(&text).unwrap();
        // return  ResponseData::new(self.tag.clone(), 200, "success".to_string(), json_value);

        let id = json_value["id"].as_i64();
        match id {
            None => {}
            Some(v) => {
                match v {
                    0 => {
                        let result = json_value.get("result").unwrap();
                        return ResponseData::new(self.tag.clone(), 200, "success".to_string(), result.clone());
                    }
                    _ => {}
                }
            }
        }

        let code = json_value["code"].as_i64();
        match code {
            None => {}
            Some(v) => {
                match v {
                    0 => {
                        //判断是否有code ，没有表示特殊接口，直接返回
                        if json_value.get("data").is_some() {
                            let data = json_value.get("data").unwrap();
                            return ResponseData::new(self.tag.clone(), 200, "success".to_string(), data.clone());
                        } else {
                            return ResponseData::new(self.tag.clone(), 200, "success".to_string(), json_value);
                        }
                    }
                    _ => {
                        if json_value.get("msg").is_some() {
                            return ResponseData::new(self.tag.clone(), 400, format!("{:?}", json_value["msg"].as_str()), json_value);
                        } else {
                            return ResponseData::new(self.tag.clone(), 400, "error".to_string(), json_value);
                        }
                    }
                }
            }
        }


        return ResponseData::new(self.tag.clone(), 400, "error".to_string(), json_value);
    }

    pub fn on_error_data(&mut self, text: &String, _base_url: &String, _params: &String) -> ResponseData {
        let json_value = serde_json::from_str::<Value>(&text);


        match json_value {
            Ok(data) => {
                let code = data["code"].as_i64();
                match code {
                    None => {}
                    Some(v) => {
                        match v {
                            _ => {
                                if data.get("msg").is_some() {
                                    return ResponseData::new(self.tag.clone(), 400, format!("{:?}", data["msg"].as_str().unwrap()), data);
                                } else {
                                    return ResponseData::new(self.tag.clone(), 400, "error".to_string(), data);
                                }
                            }
                        }
                    }
                }
            }
            Err(e) => {
                error!("解析错误：{:?}", e);
                return ResponseData::error("".to_string(),
                                           format!("json 解析失败:{}，相关参数:{}", e, text));
            }
        }
        return ResponseData::error("".to_string(), format!("请求失败：{:?}", text));
    }
}