package com.xcong.excoin.modules.okxApi;

import java.math.BigDecimal;

/**
 * OKX 交易模块全局配置 — 盈利回收策略的参数入口。
 *
 * <p>通过 Builder 模式将所有运行参数集中管理，避免策略参数散落在多个类中。
 *
 * <h3>参数分类</h3>
 * <table>
 *   <tr><th>类别</th><th>参数</th><th>用途</th></tr>
 *   <tr><td>认证</td><td>apiKey, apiSecret, passphrase</td><td>REST/WS 签名认证</td></tr>
 *   <tr><td>交易标的</td><td>contract, leverage, baseQuantity</td><td>合约、杠杆、张数</td></tr>
 *   <tr><td>持仓</td><td>marginMode, positionMode</td><td>全仓/逐仓、双向持仓</td></tr>
 *   <tr><td>风控</td><td>maxLoss, maxPositionSize</td><td>最大亏损阈值、单边持仓上限</td></tr>
 *   <tr><td>盈亏计算</td><td>contractMultiplier, priceScale, unrealizedPnlPriceMode</td><td>合约乘数、价格精度、计价模式</td></tr>
 *   <tr><td>策略核心</td><td>profitTriggerRatio, reinvestRatio</td><td>盈利触发比例、再投资比例</td></tr>
 * </table>
 *
 * @author Administrator
 */
public class OkxConfig {

    /**
     * 未实现盈亏（unrealizedPnl）计价模式。
     */
    public enum PnLPriceMode {
        /** 按最新成交价计算未实现盈亏 */
        LAST_PRICE,
        /** 按标记价格计算未实现盈亏 */
        MARK_PRICE
    }

    // ==================== 认证信息 ====================

    private final String apiKey;
    private final String apiSecret;
    private final String passphrase;

    // ==================== 交易标的 ====================

    private final String contract;
    private final String leverage;
    private final String marginMode;
    private final String positionMode;

    // ==================== 策略参数 ====================

    /** 基底开仓张数（初始化时多空各开的张数，如 "10"） */
    private final String baseQuantity;
    /** 最大亏损阈值（USDT），触发后策略停止 */
    private final BigDecimal maxLoss;
    /** 是否为生产环境 */
    private final boolean isProduction;
    /** 合约乘数（单张合约代表的基础资产数量，如 BTC-USDT-SWAP=0.01） */
    private final BigDecimal contractMultiplier;
    /** 价格精度（交易所价格的小数位数） */
    private final int priceScale;
    /** 未实现盈亏计价模式 */
    private final PnLPriceMode unrealizedPnlPriceMode;

    // ==================== 盈利回收策略参数 ====================

    /** 盈利触发比例（默认0.5=50%），ROI=未实现盈亏/保证金达到此值时触发平仓 */
    private final BigDecimal profitTriggerRatio;
    /** 再投资比例（默认0.5=50%），收益A中用于开反方向仓位的比例 */
    private final BigDecimal reinvestRatio;

    // ==================== 风控参数 ====================

    /** 反向仓位倍数上限（默认10），反方向最大持仓 = baseQuantity × 此值 */
    private final int maxPositionMultiplier;
    /** 权益重置比例（默认0.05=5%），账户权益 ≥ 初始权益 × (1+此值) 时全平重置 */
    private final BigDecimal equityRestartRatio;

    // ==================== 构造器 ====================

    private OkxConfig(Builder builder) {
        this.apiKey = builder.apiKey;
        this.apiSecret = builder.apiSecret;
        this.passphrase = builder.passphrase;
        this.contract = builder.contract;
        this.leverage = builder.leverage;
        this.marginMode = builder.marginMode;
        this.positionMode = builder.positionMode;
        this.baseQuantity = builder.baseQuantity;
        this.maxLoss = builder.maxLoss;
        this.isProduction = builder.isProduction;
        this.contractMultiplier = builder.contractMultiplier;
        this.priceScale = builder.priceScale;
        this.unrealizedPnlPriceMode = builder.unrealizedPnlPriceMode;
        this.profitTriggerRatio = builder.profitTriggerRatio;
        this.reinvestRatio = builder.reinvestRatio;
        this.maxPositionMultiplier = builder.maxPositionMultiplier;
        this.equityRestartRatio = builder.equityRestartRatio;
    }

    // ==================== REST/WS 地址 ====================

    /** @return REST API 基础路径 */
    public String getRestBasePath() {
        return "https://openapi.okx.com";
    }

    /** @return WebSocket 公开频道地址 */
    public String getWsPublicUrl() {
        return isProduction
                ? "wss://ws.okx.com:8443/ws/v5/public"
                : "wss://wspap.okx.com:8443/ws/v5/public";
    }

    /** @return WebSocket 私有频道地址 */
    public String getWsPrivateUrl() {
        return isProduction
                ? "wss://ws.okx.com:8443/ws/v5/private"
                : "wss://wspap.okx.com:8443/ws/v5/private";
    }

    // ==================== 认证信息 ====================

    public String getApiKey() { return apiKey; }
    public String getApiSecret() { return apiSecret; }
    public String getPassphrase() { return passphrase; }

    // ==================== 交易标的 ====================

    public String getContract() { return contract; }
    public String getLeverage() { return leverage; }

    // ==================== 持仓配置 ====================

    public String getMarginMode() { return marginMode; }
    public String getPositionMode() { return positionMode; }

    // ==================== 策略参数 ====================

    public String getBaseQuantity() { return baseQuantity; }
    public BigDecimal getMaxLoss() { return maxLoss; }

    // ==================== 盈亏计算 ====================

    public BigDecimal getContractMultiplier() { return contractMultiplier; }
    public int getPriceScale() { return priceScale; }
    public PnLPriceMode getUnrealizedPnlPriceMode() { return unrealizedPnlPriceMode; }

    // ==================== 盈利回收策略参数 ====================

    public BigDecimal getProfitTriggerRatio() { return profitTriggerRatio; }
    public BigDecimal getReinvestRatio() { return reinvestRatio; }

    // ==================== 风控参数 ====================

    /** @return 反向仓位倍数上限，反方向最大持仓 = baseQuantity × 此值 */
    public int getMaxPositionMultiplier() { return maxPositionMultiplier; }
    /** @return 权益重置比例，账户权益 ≥ 初始权益 × (1+此值) 时全平重置 */
    public BigDecimal getEquityRestartRatio() { return equityRestartRatio; }

    // ==================== 环境 ====================

    public boolean isProduction() { return isProduction; }

    // ==================== Builder ====================

    public static Builder builder() {
        return new Builder();
    }

    /**
     * OkxConfig 的流式构造器。
     *
     * <h3>必填项</h3>
     * {@code apiKey}、{@code apiSecret}、{@code passphrase} 必须设置。
     *
     * <h3>默认值</h3>
     * BTC-USDT-SWAP / 100x / cross / long_short_mode / baseQuantity=10 /
     * maxLoss=15 / profitTriggerRatio=0.5 / reinvestRatio=0.5 /
     * maxPositionMultiplier=10 / equityRestartRatio=0.05
     */
    public static class Builder {
        private String apiKey;
        private String apiSecret;
        private String passphrase;
        private String contract = "BTC-USDT-SWAP";
        private String leverage = "100";
        private String marginMode = "cross";
        private String positionMode = "long_short_mode";
        private String baseQuantity = "10";
        private BigDecimal maxLoss = new BigDecimal("15");
        private boolean isProduction = false;
        private BigDecimal contractMultiplier = new BigDecimal("0.01");
        private int priceScale = 2;
        private PnLPriceMode unrealizedPnlPriceMode = PnLPriceMode.LAST_PRICE;
        private BigDecimal profitTriggerRatio = new BigDecimal("0.5");
        private BigDecimal reinvestRatio = new BigDecimal("0.5");
        private int maxPositionMultiplier = 10;
        private BigDecimal equityRestartRatio = new BigDecimal("0.05");

        public Builder apiKey(String v) { this.apiKey = v; return this; }
        public Builder apiSecret(String v) { this.apiSecret = v; return this; }
        public Builder passphrase(String v) { this.passphrase = v; return this; }
        public Builder contract(String v) { this.contract = v; return this; }
        public Builder leverage(String v) { this.leverage = v; return this; }
        public Builder marginMode(String v) { this.marginMode = v; return this; }
        public Builder positionMode(String v) { this.positionMode = v; return this; }
        public Builder baseQuantity(String v) { this.baseQuantity = v; return this; }
        public Builder maxLoss(BigDecimal v) { this.maxLoss = v; return this; }
        public Builder isProduction(boolean v) { this.isProduction = v; return this; }
        public Builder contractMultiplier(BigDecimal v) { this.contractMultiplier = v; return this; }
        public Builder priceScale(int v) { this.priceScale = v; return this; }
        public Builder unrealizedPnlPriceMode(PnLPriceMode v) { this.unrealizedPnlPriceMode = v; return this; }
        public Builder profitTriggerRatio(BigDecimal v) { this.profitTriggerRatio = v; return this; }
        public Builder reinvestRatio(BigDecimal v) { this.reinvestRatio = v; return this; }
        public Builder maxPositionMultiplier(int v) { this.maxPositionMultiplier = v; return this; }
        public Builder equityRestartRatio(BigDecimal v) { this.equityRestartRatio = v; return this; }

        public OkxConfig build() {
            return new OkxConfig(this);
        }
    }
}