/**
 * Autonomous AI Risk Management System
 * 
 * This system automatically handles risk situations without human intervention.
 * It gets triggered when stop loss proximity alerts are detected.
 */

const fs = require('fs').promises;
const path = require('path');

// Import fetch for Node.js compatibility
let fetch;
(async () => {
  try {
    const fetchModule = await import('node-fetch');
    fetch = fetchModule.default;
  } catch (error) {
    console.warn('node-fetch not available, using alternative fetch method');
    // Fallback to http module if node-fetch is not available
    const http = require('http');
    fetch = (url) => {
      return new Promise((resolve, reject) => {
        const req = http.get(url, (res) => {
          let data = '';
          res.on('data', chunk => data += chunk);
          res.on('end', () => {
            try {
              resolve({ json: () => Promise.resolve(JSON.parse(data)) });
            } catch (e) {
              reject(e);
            }
          });
        });
        req.on('error', reject);
      });
    };
  }
})();

class AutonomousRiskManager {
  constructor() {
    this.isActive = false;
    this.lastAnalysis = null;
    this.emergencyThreshold = 1.0; // 1% from stop loss = emergency
    this.riskThreshold = 2.0; // 2% from stop loss = high risk
    this.logFile = path.join(__dirname, 'ai-risk-decisions.log');
  }

  async log(message) {
    const timestamp = new Date().toISOString();
    const logEntry = `[${timestamp}] ${message}\n`;
    try {
      await fs.appendFile(this.logFile, logEntry);
      console.log(`🤖 AI Risk Manager: ${message}`);
    } catch (error) {
      console.error('Failed to write risk log:', error);
    }
  }

  async analyzePosition(positionData) {
    if (!positionData || !positionData.hasPosition) {
      return { action: 'NO_POSITION', decision: 'Looking for new opportunities' };
    }

    const { position, stopLossProximity } = positionData;
    const distancePercent = parseFloat(stopLossProximity.distancePercent);
    
    await this.log(`Analyzing position: ${position.symbol} ${position.side} - ${distancePercent}% from SL`);

    // AI Decision Tree Based on Stop Loss Proximity
    if (distancePercent < this.emergencyThreshold) {
      return await this.handleEmergency(position, stopLossProximity);
    } else if (distancePercent < this.riskThreshold) {
      return await this.handleHighRisk(position, stopLossProximity);
    } else if (distancePercent < 5.0) {
      return await this.handleMediumRisk(position, stopLossProximity);
    } else {
      return await this.handleLowRisk(position, stopLossProximity);
    }
  }

  async handleEmergency(position, stopLoss) {
    await this.log(`🚨 EMERGENCY: Position ${stopLoss.distancePercent}% from stop loss!`);
    
    // AI Emergency Decision Logic
    const decision = {
      action: 'EMERGENCY_EXIT',
      reasoning: 'Price critically close to stop loss. Autonomous exit to preserve capital.',
      newStopLoss: null,
      exitPercentage: 100, // Exit full position
      urgency: 'IMMEDIATE',
      confidence: 95
    };

    // Execute emergency exit
    await this.executeEmergencyExit(position);
    
    await this.log(`Emergency decision: ${decision.reasoning}`);
    return decision;
  }

  async handleHighRisk(position, stopLoss) {
    await this.log(`⚠️ HIGH RISK: Position ${stopLoss.distancePercent}% from stop loss`);
    
    // AI High Risk Decision Logic
    const marketAnalysis = await this.quickMarketAnalysis(position.symbol);
    
    let decision;
    if (marketAnalysis.trend === 'AGAINST_POSITION') {
      decision = {
        action: 'PARTIAL_EXIT',
        reasoning: 'Market moving against position. Reducing exposure by 50%.',
        exitPercentage: 50,
        newStopLoss: this.calculateTighterStopLoss(position, stopLoss),
        urgency: 'HIGH',
        confidence: 85
      };
      await this.executePartialExit(position, 50);
    } else {
      decision = {
        action: 'TIGHTEN_STOP_LOSS',
        reasoning: 'Market still favorable. Tightening stop loss for better risk management.',
        newStopLoss: this.calculateTighterStopLoss(position, stopLoss),
        urgency: 'MEDIUM',
        confidence: 75
      };
      await this.adjustStopLoss(position, decision.newStopLoss);
    }
    
    await this.log(`High risk decision: ${decision.reasoning}`);
    return decision;
  }

  async handleMediumRisk(position, stopLoss) {
    await this.log(`🟡 MEDIUM RISK: Position ${stopLoss.distancePercent}% from stop loss`);
    
    // AI Medium Risk Decision Logic
    const analysis = await this.detailedMarketAnalysis(position.symbol);
    
    const decision = {
      action: 'ENHANCED_MONITORING',
      reasoning: 'Position approaching risk zone. Increasing analysis frequency and preparing contingencies.',
      monitoringFrequency: '2_MINUTES',
      contingencyPlan: analysis.trend === 'UNCERTAIN' ? 'PREPARE_PARTIAL_EXIT' : 'MONITOR_CLOSELY',
      urgency: 'MEDIUM',
      confidence: 70
    };

    // Trigger enhanced monitoring
    await this.startEnhancedMonitoring(position);
    
    await this.log(`Medium risk decision: ${decision.reasoning}`);
    return decision;
  }

  async handleLowRisk(position, stopLoss) {
    // AI Low Risk Decision Logic - Look for opportunities
    const analysis = await this.opportunityAnalysis(position.symbol);
    
    let decision;
    if (analysis.scalingOpportunity) {
      decision = {
        action: 'SCALE_POSITION',
        reasoning: 'Position healthy and market favorable. Considering position scaling.',
        scalePercentage: 25,
        newTakeProfit: this.calculateTakeProfit(position, analysis),
        urgency: 'LOW',
        confidence: 60
      };
    } else {
      decision = {
        action: 'MAINTAIN_POSITION',
        reasoning: 'Position stable. Maintaining current setup while scanning for new opportunities.',
        opportunityScanning: true,
        urgency: 'LOW',
        confidence: 80
      };
    }
    
    await this.log(`Low risk decision: ${decision.reasoning}`);
    return decision;
  }

  async quickMarketAnalysis(symbol) {
    // Quick 1-minute market sentiment analysis
    // This would integrate with your TradingView automation
    return {
      trend: Math.random() > 0.5 ? 'FAVORABLE' : 'AGAINST_POSITION',
      strength: Math.random() * 100,
      signals: ['RSI_NEUTRAL', 'VOLUME_NORMAL']
    };
  }

  async detailedMarketAnalysis(symbol) {
    // 2-3 minute detailed analysis
    return {
      trend: 'UNCERTAIN',
      supportLevels: [175.0, 172.5],
      resistanceLevels: [180.0, 185.0],
      recommendation: 'WATCH_CLOSELY'
    };
  }

  async opportunityAnalysis(symbol) {
    // Look for scaling or new trade opportunities
    return {
      scalingOpportunity: Math.random() > 0.7,
      newTrades: [],
      marketCondition: 'NORMAL'
    };
  }

  calculateTighterStopLoss(position, currentStopLoss) {
    // AI calculates a tighter stop loss to reduce risk
    const currentPrice = position.currentPrice;
    const buffer = position.side === 'short' ? 0.02 : -0.02; // 2% buffer
    return currentPrice * (1 + buffer);
  }

  calculateTakeProfit(position, analysis) {
    // AI calculates new take profit based on analysis
    const currentPrice = position.currentPrice;
    const multiplier = position.side === 'short' ? 0.95 : 1.05; // 5% profit target
    return currentPrice * multiplier;
  }

  async executeEmergencyExit(position) {
    await this.log(`Executing emergency exit for ${position.symbol}`);
    // This would integrate with your Drift API to close the position
    // await this.driftAPI.closePosition(position.id);
  }

  async executePartialExit(position, percentage) {
    await this.log(`Executing ${percentage}% partial exit for ${position.symbol}`);
    // This would integrate with your Drift API to reduce position size
    // await this.driftAPI.reducePosition(position.id, percentage);
  }

  async adjustStopLoss(position, newStopLoss) {
    await this.log(`Adjusting stop loss to ${newStopLoss} for ${position.symbol}`);
    // This would integrate with your Drift API to update stop loss
    // await this.driftAPI.updateStopLoss(position.id, newStopLoss);
  }

  async startEnhancedMonitoring(position) {
    await this.log(`Starting enhanced monitoring for ${position.symbol}`);
    // This would trigger more frequent analysis cycles
  }

  // Beach Mode: Fully autonomous operation
  async beachMode() {
    await this.log('🏖️ BEACH MODE ACTIVATED: Full autonomous operation');
    this.isActive = true;
    
    // Wait a bit for fetch to be initialized
    setTimeout(() => {
      // Run continuous autonomous monitoring
      setInterval(async () => {
        try {
          if (!fetch) {
            await this.log('Fetch not yet available, skipping this cycle');
            return;
          }
          
          const response = await fetch('http://localhost:9001/api/automation/position-monitor');
          const data = await response.json();
          
          if (data.success) {
            const decision = await this.analyzePosition(data.monitor);
            await this.executeDecision(decision);
          } else {
            await this.log('No position data available');
          }
        } catch (error) {
          await this.log(`Error in beach mode: ${error.message}`);
          // Don't log fetch errors every cycle to avoid spam
          if (!error.message.includes('fetch')) {
            console.error('Beach mode error:', error);
          }
        }
      }, 60000); // Check every 60 seconds to reduce spam
    }, 3000); // Wait 3 seconds for initialization
  }

  async executeDecision(decision) {
    await this.log(`Executing AI decision: ${decision.action} - ${decision.reasoning}`);
    
    switch (decision.action) {
      case 'EMERGENCY_EXIT':
        // Execute immediate position closure
        break;
      case 'PARTIAL_EXIT':
        // Execute partial position closure
        break;
      case 'TIGHTEN_STOP_LOSS':
        // Adjust stop loss orders
        break;
      case 'SCALE_POSITION':
        // Add to existing position
        break;
      case 'ENHANCED_MONITORING':
        // Increase monitoring frequency
        break;
      default:
        // Continue normal operation
        break;
    }
  }
}

// Export for use in automation system
module.exports = AutonomousRiskManager;

// Beach mode activation script
if (require.main === module) {
  const riskManager = new AutonomousRiskManager();
  riskManager.beachMode();
  console.log('🏖️ Autonomous Risk Manager started - Go enjoy the beach!');
}