package com.xcong.excoin.modules.gateApi;

import com.xcong.excoin.modules.gateApi.wsHandler.handler.CandlestickChannelHandler;
import com.xcong.excoin.modules.gateApi.wsHandler.handler.PositionClosesChannelHandler;
import com.xcong.excoin.modules.gateApi.wsHandler.handler.PositionsChannelHandler;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Component;

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

/**
 * Gate 模块 Spring 入口，组装所有组件并管理生命周期。
 *
 * <h3>启动流程 ({@code @PostConstruct})</h3>
 * <ol>
 *   <li>构建 {@link GateConfig}（Builder 模式，含 API 密钥、合约、策略参数）</li>
 *   <li>创建 {@link GateGridTradeService} → init()：切持仓模式、清旧条件单、设杠杆</li>
 *   <li>创建 {@link GateKlineWebSocketClient} → 注册 3 个 Handler → init()：建立 WS 连接</li>
 *   <li>gridTradeService.startGrid()：激活策略，等待 K 线触发首次双开</li>
 * </ol>
 *
 * <h3>销毁流程 ({@code @PreDestroy})</h3>
 * <ol>
 *   <li>gridTradeService.stopGrid()：取消条件单 → 关闭交易线程池</li>
 *   <li>wsClient.destroy()：取消订阅 → 断开 WS → 关闭线程池</li>
 * </ol>
 *
 * <h3>配置</h3>
 * 当前在代码中硬编码测试网参数。切换到生产网只需改为 {@code .isProduction(true)}。
 *
 * @author Administrator
 */
@Slf4j
@Component
public class GateWebSocketClientManager {

    /** WebSocket 连接管理器 */
    private GateKlineWebSocketClient wsClient;
    /** 网格交易策略服务 */
    private GateGridTradeService gridTradeService;
    /** 统一配置 */
    private GateConfig config;

    @PostConstruct
    public void init() {
        log.info("[GateMgr] init...");

        try {
            config = GateConfig.builder()
                    .apiKey("d90ca272391992b8e74f8f92cedb21ec")
                    .apiSecret("1861e4f52de4bb53369ea3208d9ede38ece4777368030f96c77d27934c46c274")
                    .contract("XAUT_USDT")
                    .leverage("30")
                    .marginMode("cross")
                    .positionMode("dual")
                    .gridRate(new BigDecimal("0.0035"))
                    .overallTp(new BigDecimal("0.5"))
                    .maxLoss(new BigDecimal("7.5"))
                    .quantity("10")
                    .isProduction(false)
                    .reopenMaxRetries(3)
                    .build();

            gridTradeService = new GateGridTradeService(config);
            gridTradeService.init();

            wsClient = new GateKlineWebSocketClient(config.getWsUrl());
            wsClient.addChannelHandler(new CandlestickChannelHandler(config.getContract(), gridTradeService));
            wsClient.addChannelHandler(new PositionsChannelHandler(
                    config.getApiKey(), config.getApiSecret(), config.getContract(), gridTradeService));
            wsClient.addChannelHandler(new PositionClosesChannelHandler(
                    config.getApiKey(), config.getApiSecret(), config.getContract(), gridTradeService));
            wsClient.init();
            log.info("[GateMgr] ws connected, 3 handlers registered");

            gridTradeService.startGrid();
        } catch (Exception e) {
            log.error("[GateMgr] init fail", e);
        }
    }

    @PreDestroy
    public void destroy() {
        log.info("[GateMgr] destroy...");
        if (gridTradeService != null) {
            gridTradeService.stopGrid();
        }
        if (wsClient != null) {
            wsClient.destroy();
        }
        log.info("[GateMgr] destroyed");
    }

    public GateKlineWebSocketClient getKlineWebSocketClient() { return wsClient; }
    public GateGridTradeService getGridTradeService() { return gridTradeService; }
}