// ARI Cortex Layer
import { Prisma } from '@prisma/client';
// Regulatory policy generator, predictive modeling

import prisma from '@/shared/database/prisma';
import { v4 as uuidv4 } from 'uuid';
import { logger } from '@/infrastructure/monitoring/logger';
import { sriCalculatorService } from '@/core/risk/sri/sri-calculator.service';


export interface PolicyGenerationRequest {
  policyType: 'aml' | 'fx_risk' | 'liquidity' | 'sanctions' | 'settlement';
  triggerCondition?: string;
  targetSystem?: string;
}

export interface RegulatoryPolicy {
  policyId: string;
  policyType: string;
  policyRules: Record<string, unknown>;
  effectiveDate: Date;
}

export class AriCortexService {
  /**
   * Generate regulatory policy
   */
  async generatePolicy(request: PolicyGenerationRequest): Promise<RegulatoryPolicy> {
    const policyId = `ARI-POLICY-${uuidv4()}`;

    // Generate policy rules based on type
    const policyRules = await this.generatePolicyRules(request);

    // Create policy
    const policy = await prisma.ariPolicy.create({
      data: {
        policyId,
        policyType: request.policyType,
        policyName: `${request.policyType}_policy_${Date.now()}`,
        policyRules: policyRules as Prisma.InputJsonValue,
        layer: 'cortex',
        status: 'active',
        effectiveDate: new Date(),
        createdBy: 'ari',
      },
    });

    logger.info('ARI Cortex: Generated regulatory policy', {
      policyId,
      policyType: request.policyType,
    });

    return {
      policyId: policy.policyId,
      policyType: policy.policyType,
      policyRules: policy.policyRules as unknown as Record<string, unknown>,
      effectiveDate: policy.effectiveDate,
    };
  }

  /**
   * Generate policy rules
   */
  private async generatePolicyRules(request: PolicyGenerationRequest): Promise<Record<string, unknown>> {
    switch (request.policyType) {
      case 'aml':
        return {
          velocityThreshold: 100,
          transactionLimit: 1000000,
          monitoringWindow: 3600000, // 1 hour
          alertLevel: 'high',
        };

      case 'fx_risk':
        return {
          maxVolatility: 0.1, // 10%
          bandWidth: 0.02, // 2%
          monitoringFrequency: 60, // seconds
          autoAdjustment: true,
        };

      case 'liquidity':
        return {
          minReserveRatio: 0.1, // 10%
          alertThreshold: 0.2, // 20%
          interventionThreshold: 0.15, // 15%
          monitoringInterval: 300, // 5 minutes
        };

      case 'sanctions':
        return {
          screeningFrequency: 'real-time',
          updateInterval: 3600, // 1 hour
          autoBlock: true,
          reviewRequired: true,
        };

      case 'settlement':
        return {
          maxSettlementTime: 100, // milliseconds
          retryAttempts: 3,
          fallbackEnabled: true,
          monitoringEnabled: true,
        };

      default:
        return {};
    }
  }

  /**
   * Predictive modeling for risk assessment
   */
  async predictRisk(sovereignBankId: string): Promise<{
    fxShockProbability: number;
    liquidityTension: number;
    commodityStress: number;
  }> {
    // Get SRI score
    const sriResult = await sriCalculatorService.calculateSRI(sovereignBankId);

    // Calculate predictive metrics
    const fxShockProbability = this.calculateFxShockProbability(sriResult.sriScore);
    const liquidityTension = this.calculateLiquidityTension(sriResult.sriScore);
    const commodityStress = this.calculateCommodityStress(sriResult.sriScore);

    logger.info('ARI Cortex: Risk prediction completed', {
      sovereignBankId,
      fxShockProbability,
      liquidityTension,
      commodityStress,
    });

    return {
      fxShockProbability,
      liquidityTension,
      commodityStress,
    };
  }

  /**
   * Calculate FX shock probability
   */
  private calculateFxShockProbability(sriScore: number): number {
    // Higher SRI = higher FX shock probability
    // Scale: 0-1 (0% to 100%)
    return Math.min(1, sriScore / 100);
  }

  /**
   * Calculate liquidity tension
   */
  private calculateLiquidityTension(sriScore: number): number {
    // Higher SRI = higher liquidity tension
    // Scale: 0-100
    return Math.min(100, sriScore);
  }

  /**
   * Calculate commodity stress
   */
  private calculateCommodityStress(sriScore: number): number {
    // Higher SRI = higher commodity stress
    // Scale: 0-100
    return Math.min(100, sriScore * 0.8);
  }
}

export const ariCortexService = new AriCortexService();

