// DBIS Unified Dimensional Arbitrage Engine
// Calculates arbitrage opportunities across dimensions, timelines, parallel branches, quantum states, and simulated economies

import prisma from '@/shared/database/prisma';
import { v4 as uuidv4 } from 'uuid';
import { Decimal } from '@prisma/client/runtime/library';


export interface ArbitrageCalculationRequest {
  dimension: string;
  timeline?: string;
  parallelBranch?: string;
  quantumState?: string;
  simulatedEconomy?: string;
  classicalPrice: number;
  quantumExpectedPrice: number;
  parallelStateDivergence: number;
  holographicProjectionAdjustment: number;
}

export interface ArbitrageDelta {
  arbitrageId: string;
  delta: number;
  tolerance: number;
  requiresRebalance: boolean;
}

export class UdaeEngineService {
  /**
   * Calculate arbitrage delta
   * arbitrage_delta = classical_price - quantum_expected_price + parallel_state_divergence + holographic_projection_adjustment
   */
  async calculateArbitrageDelta(request: ArbitrageCalculationRequest): Promise<ArbitrageDelta> {
    const arbitrageId = `UDAE-${uuidv4()}`;
    const tolerance = 0.01; // Default tolerance

    const classicalPrice = new Decimal(request.classicalPrice);
    const quantumExpectedPrice = new Decimal(request.quantumExpectedPrice);
    const parallelStateDivergence = new Decimal(request.parallelStateDivergence);
    const holographicProjectionAdjustment = new Decimal(request.holographicProjectionAdjustment);

    // Calculate arbitrage delta
    const delta = classicalPrice
      .minus(quantumExpectedPrice)
      .plus(parallelStateDivergence)
      .plus(holographicProjectionAdjustment);

    const requiresRebalance = delta.abs().greaterThan(tolerance);

    // Store calculation
    await prisma.dimensionalArbitrage.create({
      data: {
        arbitrageId,
        dimension: request.dimension,
        timeline: request.timeline || null,
        parallelBranch: request.parallelBranch || null,
        quantumState: request.quantumState || null,
        simulatedEconomy: request.simulatedEconomy || null,
        classicalPrice: classicalPrice,
        quantumExpectedPrice: quantumExpectedPrice,
        parallelStateDivergence: parallelStateDivergence,
        holographicProjectionAdjustment: holographicProjectionAdjustment,
        arbitrageDelta: delta,
        tolerance: new Decimal(tolerance),
        requiresRebalance,
        status: 'calculated',
      },
    });

    return {
      arbitrageId,
      delta: delta.toNumber(),
      tolerance,
      requiresRebalance,
    };
  }

  /**
   * Get arbitrage calculation by ID
   */
  async getArbitrageCalculation(arbitrageId: string) {
    return await prisma.dimensionalArbitrage.findUnique({
      where: { arbitrageId },
      include: {
        rebalances: {
          orderBy: { createdAt: 'desc' },
        },
      },
    });
  }

  /**
   * Get all arbitrage opportunities requiring rebalance
   */
  async getArbitrageOpportunities() {
    return await prisma.dimensionalArbitrage.findMany({
      where: {
        requiresRebalance: true,
        status: 'calculated',
      },
      orderBy: { createdAt: 'desc' },
    });
  }

  /**
   * Get arbitrage calculations by dimension
   */
  async getArbitrageByDimension(dimension: string) {
    return await prisma.dimensionalArbitrage.findMany({
      where: {
        dimension,
        status: 'calculated',
      },
      orderBy: { createdAt: 'desc' },
    });
  }
}

export const udaeEngineService = new UdaeEngineService();

