#!/usr/bin/env tsx
/**
 * Delta 对冲诊断工具
 *
 * 用途：
 * 1. 检查 Delta 检测是否生效
 * 2. 验证对冲信号执行情况
 * 3. 核对配置与阈值
 * 4. 确认镜像减仓有效性
 * 5. 实时输出净敞口
 */

import Logger from '../src/utils/Logger';
import { ConfigurationManager } from '../src/modules/ConfigurationManager';
import { AccountManager } from '../src/modules/AccountManager';
import { DataAggregator } from '../src/services/DataAggregator';
import { EnhancedDeltaController, PositionData } from '../src/services/EnhancedDeltaController';
import { SignalExecutor } from '../src/services/SignalExecutor';
import { PacificaSigningClient } from '../src/services/PacificaSigningClient';

const logger = Logger.getInstance();

interface DiagnosticResult {
  timestamp: string;
  deltaDetection: {
    enabled: boolean;
    threshold: number;
    currentDelta: number;
    exceeded: boolean;
  };
  hedgingSignals: {
    generated: boolean;
    count: number;
    details: any[];
  };
  execution: {
    attempted: boolean;
    successful: number;
    failed: number;
    errors: string[];
  };
  netExposure: {
    totalBTC: number;
    totalUSDC: number;
    byAccount: Record<string, { btc: number; usdc: number }>;
  };
  recommendations: string[];
}

class DeltaDiagnostic {
  private configManager: ConfigurationManager;
  private accountManager: AccountManager;
  private deltaController: EnhancedDeltaController;
  private signalExecutor: SignalExecutor;

  constructor() {
    this.configManager = ConfigurationManager.getInstance();
    this.accountManager = new AccountManager();
    this.deltaController = new EnhancedDeltaController();
    this.signalExecutor = new SignalExecutor({ enableDryRun: true });
  }

  async initialize(): Promise<void> {
    console.log('🔍 初始化诊断工具...\n');

    // Load configurations
    this.configManager.loadConfigurations();
    const accountsConfig = this.configManager.getAccountsConfig();
    const deltaConfig = this.configManager.getDeltaConfig();

    // Initialize accounts
    this.accountManager.initializeAccounts(accountsConfig);

    // Register clients with SignalExecutor
    const accounts = this.accountManager.getAccounts();
    for (const [accountId, accountInfo] of accounts) {
      const client = this.accountManager.getAccountClient(accountId);
      if (client) {
        this.signalExecutor.registerClient(accountId, client);
      }
    }

    console.log('✅ 诊断工具初始化完成\n');
  }

  async runDiagnostic(): Promise<DiagnosticResult> {
    console.log('📊 开始 Delta 对冲诊断...\n');

    const result: DiagnosticResult = {
      timestamp: new Date().toISOString(),
      deltaDetection: {
        enabled: false,
        threshold: 0,
        currentDelta: 0,
        exceeded: false
      },
      hedgingSignals: {
        generated: false,
        count: 0,
        details: []
      },
      execution: {
        attempted: false,
        successful: 0,
        failed: 0,
        errors: []
      },
      netExposure: {
        totalBTC: 0,
        totalUSDC: 0,
        byAccount: {}
      },
      recommendations: []
    };

    try {
      // 1. 检查配置
      await this.checkConfiguration(result);

      // 2. 获取账户数据
      await this.fetchAccountData(result);

      // 3. 评估 Delta
      await this.assessDelta(result);

      // 4. 检查对冲信号
      await this.checkHedgingSignals(result);

      // 5. 生成建议
      this.generateRecommendations(result);

    } catch (error) {
      logger.error('诊断过程出错', { error });
      result.recommendations.push(`❌ 诊断失败: ${error instanceof Error ? error.message : '未知错误'}`);
    }

    return result;
  }

  private async checkConfiguration(result: DiagnosticResult): Promise<void> {
    console.log('1️⃣ 检查配置...');

    const deltaConfig = this.configManager.getDeltaConfig();
    const strategyConfig = this.configManager.getStrategyConfig();

    // Delta 再平衡配置
    const rebalanceEnabled = strategyConfig.deltaRebalancing?.enabled || false;
    const rebalanceThreshold = strategyConfig.deltaRebalancing?.rebalanceThreshold || 0.05;
    const maxDeltaDeviation = strategyConfig.deltaRebalancing?.maxDeltaDeviation || 0.001;

    result.deltaDetection.enabled = rebalanceEnabled;
    result.deltaDetection.threshold = rebalanceThreshold;

    console.log(`   ✓ Delta 再平衡: ${rebalanceEnabled ? '已启用' : '已禁用'}`);
    console.log(`   ✓ 触发阈值: ${(rebalanceThreshold * 100).toFixed(2)}%`);
    console.log(`   ✓ 目标偏差: ${(maxDeltaDeviation * 100).toFixed(2)}%`);

    // EnhancedDeltaController 配置
    const deltaControllerConfig = this.deltaController.getConfig();
    console.log(`   ✓ 基础容忍度: ${(deltaControllerConfig.baseDeltaTolerance * 100).toFixed(2)}%`);
    console.log(`   ✓ 平稳容忍度: ${(deltaControllerConfig.stableDeltaTolerance * 100).toFixed(2)}%`);
    console.log(`   ✓ 波动容忍度: ${(deltaControllerConfig.volatileDeltaTolerance * 100).toFixed(2)}%`);
    console.log('');
  }

  private async fetchAccountData(result: DiagnosticResult): Promise<void> {
    console.log('2️⃣ 获取账户数据...');

    const accountInfos = await this.accountManager.getAllAccountInfo();
    const tradingSymbol = this.configManager.getTradingSymbol();

    let totalBTC = 0;
    let totalUSDC = 0;

    for (const [accountId, info] of accountInfos) {
      const positions = info.positions || [];
      const btcPosition = positions.find((p: any) => p.symbol === tradingSymbol);

      const btcSize = btcPosition ? parseFloat(btcPosition.size) : 0;
      const accountEquity = parseFloat(info.account_equity || '0');

      totalBTC += btcSize;
      totalUSDC += accountEquity;

      result.netExposure.byAccount[accountId] = {
        btc: btcSize,
        usdc: accountEquity
      };

      console.log(`   Account ${accountId}:`);
      console.log(`      BTC Position: ${btcSize.toFixed(5)} BTC`);
      console.log(`      Equity: ${accountEquity.toFixed(2)} USDC`);
    }

    result.netExposure.totalBTC = totalBTC;
    result.netExposure.totalUSDC = totalUSDC;

    console.log(`\n   📊 总净敞口: ${totalBTC.toFixed(5)} BTC`);
    console.log(`   💰 总权益: ${totalUSDC.toFixed(2)} USDC\n`);
  }

  private async assessDelta(result: DiagnosticResult): Promise<void> {
    console.log('3️⃣ 评估 Delta...');

    const tradingSymbol = this.configManager.getTradingSymbol();
    const totalBTC = result.netExposure.totalBTC;

    // Get current price from first account's market data
    const accountInfos = await this.accountManager.getAllAccountInfo();
    const firstAccount = Array.from(accountInfos.values())[0];
    const positions = firstAccount?.positions || [];
    const btcPosition = positions.find((p: any) => p.symbol === tradingSymbol);
    const currentPrice = btcPosition ? parseFloat(btcPosition.mark_price || '0') : 0;

    // Create position data
    const positionData: PositionData = {
      symbol: tradingSymbol,
      size: totalBTC,
      value: totalBTC * currentPrice,
      timestamp: Date.now()
    };

    // Record price
    this.deltaController.recordPrice(tradingSymbol, currentPrice);

    // Assess delta
    const assessment = this.deltaController.assessDelta(tradingSymbol, positionData);

    result.deltaDetection.currentDelta = assessment.weightedDelta;
    result.deltaDetection.exceeded = assessment.exceedsTolerance;

    console.log(`   当前价格: ${currentPrice.toFixed(2)} USDC`);
    console.log(`   仓位价值: ${positionData.value.toFixed(2)} USDC`);
    console.log(`   加权 Delta: ${(assessment.weightedDelta * 100).toFixed(4)}%`);
    console.log(`   当前容忍度: ${(assessment.currentTolerance * 100).toFixed(4)}%`);
    console.log(`   是否超限: ${assessment.exceedsTolerance ? '是 ⚠️' : '否 ✅'}`);
    console.log(`   建议操作: ${assessment.recommendation}`);

    if (assessment.predictedDirection) {
      console.log(`   预测方向: ${assessment.predictedDirection} (置信度: ${((assessment.confidenceScore || 0) * 100).toFixed(2)}%)`);
    }
    console.log('');
  }

  private async checkHedgingSignals(result: DiagnosticResult): Promise<void> {
    console.log('4️⃣ 检查对冲信号...');

    // 这里需要访问策略引擎生成的信号
    // 由于策略引擎是在主循环中运行的，我们无法直接获取
    // 建议：在实际运行中监听 SignalExecutor 的事件

    console.log('   ℹ️  对冲信号检查需要在实际运行中通过日志监听');
    console.log('   建议查找日志关键字: "Delta exceeds tolerance", "Hedging signal"\n');
  }

  private generateRecommendations(result: DiagnosticResult): void {
    console.log('5️⃣ 生成建议...\n');

    const recommendations: string[] = [];

    // 检查配置
    if (!result.deltaDetection.enabled) {
      recommendations.push('⚠️  Delta 再平衡未启用，建议在配置中启用 deltaRebalancing.enabled');
    }

    // 检查阈值
    if (result.deltaDetection.threshold > 0.1) {
      recommendations.push('⚠️  Delta 阈值过高 (>10%)，建议降低到 0.01-0.05 之间');
    }

    // 检查净敞口
    const totalBTC = Math.abs(result.netExposure.totalBTC);
    if (totalBTC > 0.01) {
      const exposurePercent = (totalBTC / 1) * 100; // 假设基准为 1 BTC
      recommendations.push(`⚠️  当前净敞口: ${totalBTC.toFixed(5)} BTC，建议检查对冲机制`);
    }

    // 检查 Delta 超限
    if (result.deltaDetection.exceeded) {
      recommendations.push('🚨 Delta 超限！应生成对冲信号，请检查日志中是否有 "Delta exceeds tolerance"');
    }

    // 配置优化建议
    recommendations.push('💡 建议启用详细日志: 在策略引擎中添加 Delta 评估日志');
    recommendations.push('💡 建议监控对冲执行: 在 SignalExecutor 中监听执行事件');

    result.recommendations = recommendations;

    recommendations.forEach(rec => console.log(`   ${rec}`));
  }

  printReport(result: DiagnosticResult): void {
    console.log('\n' + '='.repeat(80));
    console.log('📋 诊断报告');
    console.log('='.repeat(80));
    console.log(`时间: ${result.timestamp}\n`);

    console.log('【Delta 检测】');
    console.log(`  启用状态: ${result.deltaDetection.enabled ? '✅ 已启用' : '❌ 未启用'}`);
    console.log(`  触发阈值: ${(result.deltaDetection.threshold * 100).toFixed(2)}%`);
    console.log(`  当前 Delta: ${(result.deltaDetection.currentDelta * 100).toFixed(4)}%`);
    console.log(`  是否超限: ${result.deltaDetection.exceeded ? '⚠️  是' : '✅ 否'}\n`);

    console.log('【净敞口】');
    console.log(`  总 BTC: ${result.netExposure.totalBTC.toFixed(5)} BTC`);
    console.log(`  总 USDC: ${result.netExposure.totalUSDC.toFixed(2)} USDC`);
    console.log('  分账户:');
    for (const [accountId, exposure] of Object.entries(result.netExposure.byAccount)) {
      console.log(`    ${accountId}: ${exposure.btc.toFixed(5)} BTC, ${exposure.usdc.toFixed(2)} USDC`);
    }
    console.log('');

    console.log('【建议】');
    result.recommendations.forEach(rec => console.log(`  ${rec}`));

    console.log('\n' + '='.repeat(80));
  }
}

// Main execution
async function main() {
  const diagnostic = new DeltaDiagnostic();

  try {
    await diagnostic.initialize();
    const result = await diagnostic.runDiagnostic();
    diagnostic.printReport(result);

    process.exit(0);
  } catch (error) {
    console.error('❌ 诊断失败:', error);
    process.exit(1);
  }
}

main();