// DBIS Temporal Liquidity Portal - Paradox Detection Service
// Causality constraint validation

import prisma from '@/shared/database/prisma';
import { v4 as uuidv4 } from 'uuid';
import { tlpPortalService } from './tlp-portal.service';


export type ParadoxType = 'causality_violation' | 'timeline_contradiction' | 'economic_paradox';

export interface DetectParadoxRequest {
  portalId: string;
  transactionId?: string;
  paradoxType: ParadoxType;
  transactionData?: Record<string, unknown>;
}

export class TlpParadoxDetectionService {
  /**
   * Detect paradox in temporal liquidity operation
   */
  async detectParadox(request: DetectParadoxRequest) {
    const portal = await tlpPortalService.getPortal(request.portalId);
    if (!portal) {
      throw new Error(`Portal not found: ${request.portalId}`);
    }

    const detectionId = `PD-${uuidv4()}`;

    // Perform paradox detection based on type
    let detected = false;
    let severity: 'low' | 'medium' | 'high' | 'critical' = 'low';

    switch (request.paradoxType) {
      case 'causality_violation':
        detected = await this.checkCausalityViolation(request.transactionData);
        severity = detected ? 'critical' : 'low';
        break;
      case 'timeline_contradiction':
        detected = await this.checkTimelineContradiction(request.transactionData);
        severity = detected ? 'high' : 'low';
        break;
      case 'economic_paradox':
        detected = await this.checkEconomicParadox(request.transactionData);
        severity = detected ? 'medium' : 'low';
        break;
    }

    const detection = await prisma.paradox_detections.create({
      data: {
        detectionId,
        portalId: request.portalId,
        transactionId: request.transactionId || null,
        paradoxType: request.paradoxType,
        severity,
        detectedAt: new Date(),
        resolved: false,
      },
    });

    return detection;
  }

  /**
   * Check for causality violations
   */
  private async checkCausalityViolation(transactionData?: Record<string, unknown>): Promise<boolean> {
    // In production, this would check:
    // - No future events affecting past states
    // - Causal order preservation
    // - No closed timelike curves
    return false; // No violation detected
  }

  /**
   * Check for timeline contradictions
   */
  private async checkTimelineContradiction(transactionData?: Record<string, unknown>): Promise<boolean> {
    // In production, this would check:
    // - Conflicting states at same temporal coordinate
    // - Timeline branch conflicts
    return false; // No contradiction detected
  }

  /**
   * Check for economic paradoxes
   */
  private async checkEconomicParadox(transactionData?: Record<string, unknown>): Promise<boolean> {
    // In production, this would check:
    // - Economic inconsistencies
    // - Value paradoxes
    // - Settlement contradictions
    return false; // No paradox detected
  }

  /**
   * Resolve paradox
   */
  async resolveParadox(detectionId: string, resolutionMethod: string) {
    return await prisma.paradox_detections.update({
      where: { detectionId },
      data: {
        resolved: true,
        resolutionMethod,
        resolvedAt: new Date(),
      },
    });
  }

  /**
   * Get unresolved paradoxes
   */
  async getUnresolvedParadoxes(portalId?: string) {
    const where: { resolved: boolean; portalId?: string } = {
      resolved: false,
    };

    if (portalId) {
      where.portalId = portalId;
    }

    return await prisma.paradox_detections.findMany({
      where,
      orderBy: [
        { severity: 'desc' },
        { detectedAt: 'desc' },
      ],
    });
  }

  /**
   * Get paradoxes by type
   */
  async getParadoxesByType(paradoxType: ParadoxType) {
    return await prisma.paradox_detections.findMany({
      where: {
        paradoxType,
        resolved: false,
      },
      orderBy: { detectedAt: 'desc' },
    });
  }
}

export const tlpParadoxDetectionService = new TlpParadoxDetectionService();

