package com.xcong.excoin.modules.okxNewPrice;

import com.xcong.excoin.modules.okxNewPrice.gridWs.OkxAlgoOrdersChannelHandler;
import com.xcong.excoin.modules.okxNewPrice.gridWs.OkxKlineChannelHandler;
import com.xcong.excoin.modules.okxNewPrice.gridWs.OkxPositionsChannelHandler;
import com.xcong.excoin.modules.okxNewPrice.okxpi.config.OKXAccount;
import com.xcong.excoin.modules.okxNewPrice.okxpi.config.enums.DefaultUrls;
import lombok.extern.slf4j.Slf4j;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.stereotype.Component;

import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;
import java.math.BigDecimal;

/**
 * OKX 网格交易系统 Spring 容器入口 — 组件组装 + 生命周期管理。
 *
 * <h3>组装顺序（{@code @PostConstruct}）</h3>
 * <ol>
 *   <li>{@link OkxConfig} — 构建配置（API 密钥、合约、策略参数）</li>
 *   <li>{@link OkxGridTradeService}.init() — 获取账户 → 清条件单 → 平仓 → 设杠杆</li>
 *   <li>{@link OkxGridWsClient} — 注册 3 个频道处理器 → init()：建立 WS 连接并登录订阅</li>
 *   <li>{@code gridTradeService.startGrid()} — 状态重置，等待首根 K 线</li>
 * </ol>
 *
 * <h3>3 个频道处理器</h3>
 * <ol>
 *   <li>OkxKlineChannelHandler — candle1m，K线 → onKline()</li>
 *   <li>OkxPositionsChannelHandler — positions，持仓 → onPositionUpdate()</li>
 *   <li>OkxAlgoOrdersChannelHandler — orders-algo，条件单 → onOrderUpdate()</li>
 * </ol>
 *
 * <h3>销毁顺序（{@code @PreDestroy}）</h3>
 * <ol>
 *   <li>gridTradeService.stopGrid()：取消所有条件单 → 关闭交易线程池</li>
 *   <li>gridWsClient.destroy()：取消订阅 → 断开 WS → 关闭线程池</li>
 * </ol>
 *
 * @author Administrator
 */
@Slf4j
@Component
@ConditionalOnProperty(prefix = "app", name = "quant", havingValue = "true")
public class OkxWebSocketClientManager {

    /** 网格交易 WS 客户端 */
    private OkxGridWsClient gridWsClient;
    /** 网格交易策略服务 */
    private OkxGridTradeService gridTradeService;
    /** 统一配置 */
    private OkxConfig okxConfig;

    @PostConstruct
    public void init() {
        log.info("[OKX-Manager] 开始初始化...");

        try {
            // 获取账户配置
            ExchangeInfoEnum[] accounts = ExchangeInfoEnum.values();
            if (accounts == null || accounts.length == 0) {
                log.error("[OKX-Manager] 无可用账户，初始化失败");
                return;
            }

            // 使用第一个账户
            ExchangeInfoEnum primaryAccount = accounts[0];
            log.info("[OKX-Manager] 使用主账户: {}", primaryAccount.name());

            // 1. 创建 OKXAccount（REST API 调用需要）
            String baseUrl = primaryAccount.isAccountType() ? DefaultUrls.USDM_PROD_URL : DefaultUrls.USDM_UAT_URL;
            OKXAccount okxAccount = new OKXAccount(
                    baseUrl,
                    primaryAccount.getApiKey(),
                    primaryAccount.getSecretKey(),
                    primaryAccount.getPassphrase(),
                    !primaryAccount.isAccountType()
            );

            // 2. 构建 OkxConfig
            // TODO: 参数可通过配置文件/数据库动态读取
            okxConfig = OkxConfig.builder()
                    .apiKey(primaryAccount.getApiKey())
                    .secretKey(primaryAccount.getSecretKey())
                    .passphrase(primaryAccount.getPassphrase())
                    .instId("ETH-USDT-SWAP")
                    .leverage("100")
                    .tdMode("cross")
                    .gridRate(new BigDecimal("0.0025"))
                    .expectedProfit(new BigDecimal("2"))
                    .maxLoss(new BigDecimal("15"))
                    .quantity("1")
                    .baseQuantity("10")
                    .priceScale(2)
                    .ctVal(new BigDecimal("0.1"))
                    .isSimulate(!primaryAccount.isAccountType())
                    .gridQueueSize(300)
                    .marginRatioLimit(new BigDecimal("0.2"))
                    .build();

            // 3. 初始化交易服务：查账户 → 清条件单 → 平已有仓位 → 设杠杆
            gridTradeService = new OkxGridTradeService(okxConfig, okxAccount);
            gridTradeService.init();

            // 4. 创建 WS 客户端并注册 3 个频道处理器
            gridWsClient = new OkxGridWsClient(primaryAccount);
            gridWsClient.addChannelHandler(new OkxKlineChannelHandler(okxConfig.getInstId(), gridTradeService));
            gridWsClient.addChannelHandler(new OkxPositionsChannelHandler(okxConfig.getInstId(), gridTradeService));
            gridWsClient.addChannelHandler(new OkxAlgoOrdersChannelHandler(okxConfig.getInstId(), gridTradeService));
            gridWsClient.init();
            log.info("[OKX-Manager] WS已连接, 已注册 3 个频道处理器: candle1m/positions/orders-algo");

            // 5. 激活策略，等待首根 K 线触发基底双开
            gridTradeService.startGrid();

            log.info("[OKX-Manager] 初始化完成");
        } catch (Exception e) {
            log.error("[OKX-Manager] 初始化失败", e);
        }
    }

    /**
     * 销毁：停止策略 → 关闭交易线程池 → 取消 WS 订阅 → 断开连接 → 关闭 WS 线程池。
     */
    @PreDestroy
    public void destroy() {
        log.info("[OKX-Manager] 开始销毁...");

        if (gridTradeService != null) {
            try {
                gridTradeService.stopGrid();
            } catch (Exception e) {
                log.error("[OKX-Manager] 停止策略失败", e);
            }
        }
        if (gridWsClient != null) {
            try {
                gridWsClient.destroy();
            } catch (Exception e) {
                log.error("[OKX-Manager] 销毁WS客户端失败", e);
            }
        }

        log.info("[OKX-Manager] 销毁完成");
    }

    /** @return 网格交易策略服务实例 */
    public OkxGridTradeService getGridTradeService() { return gridTradeService; }
    /** @return 网格交易 WS 客户端实例 */
    public OkxGridWsClient getGridWsClient() { return gridWsClient; }
    /** @return 统一配置实例 */
    public OkxConfig getOkxConfig() { return okxConfig; }
}