// DBIS Volume XIV: Reality-Spanning Smart Contract Kernel (RSSCK)
// Executes smart contracts that operate across dimensions, timelines, simulated and physical layers

import { Prisma } from '@prisma/client';
import prisma from '@/shared/database/prisma';
import { v4 as uuidv4 } from 'uuid';
import { createHash } from 'crypto';


export interface CreateRealitySpanningContractRequest {
  contractCode: Record<string, unknown>;
  dimensions?: string[];
  timelines?: Record<string, unknown>;
  simulatedLayers?: Record<string, unknown>;
  quantumStates?: Record<string, unknown>;
}

export interface ContractExecutionRequest {
  contractId: string;
  executionType: 'standard' | 'cross_dimensional' | 'temporal' | 'quantum_entangled';
  executionData: Record<string, unknown>;
  intentProbabilities?: Record<string, number>;
  consciousnessSignatures?: Record<string, unknown>;
  quantumSymmetry?: Record<string, unknown>;
}

export class RssckService {
  /**
   * Create reality-spanning smart contract
   */
  async createRealitySpanningContract(
    request: CreateRealitySpanningContractRequest
  ): Promise<{
    contractId: string;
    contractHash: string;
    realityAgreement: boolean;
  }> {
    const contractId = `RSC-${uuidv4()}`;

    // Calculate contract hash
    const contractString = JSON.stringify(request.contractCode);
    const contractHash = createHash('sha3-256')
      .update(contractString)
      .digest('hex');

    // Check if all realities agree: all_realities_agree(contract_hash)
    const realityAgreement = await this.checkRealityAgreement(
      contractHash,
      request
    );

    // Create contract record
    const contract = await prisma.reality_spanning_contracts.create({
      data: {
        id: uuidv4(),
        contractId,
        contractHash,
        contractCode: request.contractCode as Prisma.InputJsonValue,
        dimensions: (request.dimensions || []) as Prisma.InputJsonValue,
        timelines: request.timelines
          ? (request.timelines as Prisma.InputJsonValue)
          : Prisma.JsonNull,
        simulatedLayers: request.simulatedLayers
          ? (request.simulatedLayers as Prisma.InputJsonValue)
          : Prisma.JsonNull,
        quantumStates: request.quantumStates
          ? (request.quantumStates as Prisma.InputJsonValue)
          : Prisma.JsonNull,
        realityAgreement,
        agreementDetails: {
          checkedAt: new Date().toISOString(),
          agreementStatus: realityAgreement ? 'agreed' : 'disagreed',
        } as Prisma.InputJsonValue,
        status: realityAgreement ? 'agreed' : 'resolving',
        createdAt: new Date(),
        updatedAt: new Date(),
      },
    });

    // If realities don't agree, initiate OSSM resolution
    if (!realityAgreement) {
      await this.initiateOssmResolution(contract.id, request);
    }

    return {
      contractId: contract.contractId,
      contractHash: contract.contractHash,
      realityAgreement: contract.realityAgreement,
    };
  }

  /**
   * Check if all realities agree on contract hash
   */
  private async checkRealityAgreement(
    contractHash: string,
    contract: CreateRealitySpanningContractRequest
  ): Promise<boolean> {
    // Simplified: check agreement across dimensions, timelines, simulated layers, quantum states
    // In production, this would query actual reality states

    const dimensions = contract.dimensions || [];
    const hasTimelines = contract.timelines !== undefined;
    const hasSimulatedLayers = contract.simulatedLayers !== undefined;
    const hasQuantumStates = contract.quantum_states !== undefined;

    // All realities must have consistent contract hash
    // For now, simplified check: if all components present, assume agreement
    const allPresent =
      dimensions.length > 0 &&
      hasTimelines &&
      hasSimulatedLayers &&
      hasQuantumStates;

    return allPresent;
  }

  /**
   * Initiate OSSM (Omni-Sovereign Settlement Matrix) resolution
   */
  private async initiateOssmResolution(
    contractDbId: string,
    contract: CreateRealitySpanningContractRequest
  ): Promise<void> {
    // Create resolution record
    const resolution = await prisma.contract_resolutions.create({
      data: {
        id: uuidv4(),
        resolutionId: `RES-${uuidv4()}`,
        contractId: contractDbId,
        resolutionType: 'ossm_adjudication',
        conflictDetails: {
          reason: 'reality_disagreement',
          contractDetails: contract as unknown,
        } as Prisma.InputJsonValue,
        status: 'pending',
        createdAt: new Date(),
        updatedAt: new Date(),
      },
    });

    // Update contract with OSSM resolution reference
    await prisma.reality_spanning_contracts.update({
      where: { id: contractDbId },
      data: {
        ossmResolution: {
          resolutionId: resolution.resolutionId,
          initiatedAt: new Date().toISOString(),
        } as Prisma.InputJsonValue,
        status: 'resolving',
      },
    });
  }

  /**
   * Execute contract: if all_realities_agree(contract_hash): execute() else: resolve_via_OSSM()
   */
  async executeContract(
    request: ContractExecutionRequest
  ): Promise<{
    executionId: string;
    executionResult: Record<string, unknown>;
    status: string;
  }> {
    const contract = await prisma.reality_spanning_contracts.findUnique({
      where: { contractId: request.contractId },
    });

    if (!contract) {
      throw new Error(`Contract ${request.contractId} not found`);
    }

    // Check if realities agree
    if (!contract.realityAgreement) {
      // Resolve via OSSM
      const resolution = await this.resolveViaOssm(contract.id);
      return {
        executionId: '',
        executionResult: {
          status: 'deferred',
          reason: 'reality_disagreement',
          resolutionId: resolution.resolutionId,
        },
        status: 'resolving',
      };
    }

    // Execute contract
    const execution = await prisma.contract_executions.create({
      data: {
        id: uuidv4(),
        executionId: `EXEC-${uuidv4()}`,
        contractId: contract.id,
        executionType: request.executionType,
        executionData: request.executionData as Prisma.InputJsonValue,
        intentProbabilities: request.intentProbabilities
          ? (request.intentProbabilities as Prisma.InputJsonValue)
          : Prisma.JsonNull,
        consciousnessSignatures: request.consciousnessSignatures
          ? (request.consciousnessSignatures as Prisma.InputJsonValue)
          : Prisma.JsonNull,
        quantumSymmetry: request.quantumSymmetry
          ? (request.quantumSymmetry as Prisma.InputJsonValue)
          : Prisma.JsonNull,
        status: 'executing',
        createdAt: new Date(),
        updatedAt: new Date(),
      },
    });

    // Perform execution (simplified - in production would execute actual contract code)
    const executionResult = await this.performExecution(
      contract,
      request,
      execution.id
    );

    // Update execution with result
    await prisma.contract_executions.update({
      where: { id: execution.id },
      data: {
        executionResult: executionResult as Prisma.InputJsonValue,
        status: 'completed',
        executedAt: new Date(),
      },
    });

    // Update contract status
    await prisma.reality_spanning_contracts.update({
      where: { contractId: request.contractId },
      data: {
        status: 'executed',
        executionResult: executionResult as Prisma.InputJsonValue,
        executedAt: new Date(),
      },
    });

    return {
      executionId: execution.executionId,
      executionResult,
      status: 'completed',
    };
  }

  /**
   * Resolve via OSSM
   */
  private async resolveViaOssm(contractDbId: string) {
    // Get existing resolution or create new one
    let resolution = await prisma.contract_resolutions.findFirst({
      where: {
        contractId: contractDbId,
        resolutionType: 'ossm_adjudication',
        status: 'pending',
      },
    });

    if (!resolution) {
      resolution = await prisma.contract_resolutions.create({
        data: {
          id: uuidv4(),
          resolutionId: `RES-${uuidv4()}`,
          contractId: contractDbId,
          resolutionType: 'ossm_adjudication',
          status: 'pending',
          createdAt: new Date(),
          updatedAt: new Date(),
        },
      });
    }

    // In production, this would call actual OSSM service
    // For now, create a simplified resolution
    const resolutionResult = {
      resolved: true,
      resolutionMethod: 'ossm_adjudication',
      resolvedAt: new Date().toISOString(),
    };

    await prisma.contract_resolutions.update({
      where: { id: resolution.id },
      data: {
        resolutionResult: resolutionResult as Prisma.InputJsonValue,
        status: 'resolved',
        resolvedAt: new Date(),
      },
    });

    return resolution;
  }

  /**
   * Perform contract execution
   */
  private async performExecution(
    contract: {
      contractCode: object;
      quantumStates: object | null;
    },
    request: ContractExecutionRequest,
    executionDbId: string
  ): Promise<Record<string, unknown>> {
    // Simplified execution - in production would execute actual contract code
    // This would factor in:
    // - Intent probabilities (cognitive layer)
    // - Consciousness signatures
    // - Quantum decision symmetry

    const executionResult: Record<string, unknown> = {
      executed: true,
      executionType: request.executionType,
      timestamp: new Date().toISOString(),
    };

    // Factor in intent probabilities if provided
    if (request.intentProbabilities) {
      executionResult.intentProbabilities = request.intentProbabilities;
      executionResult.intentWeightedResult = this.calculateIntentWeightedResult(
        request.intentProbabilities
      );
    }

    // Factor in consciousness signatures if provided
    if (request.consciousnessSignatures) {
      executionResult.consciousnessSignatures = request.consciousnessSignatures;
      executionResult.consciousnessVerified = true;
    }

    // Factor in quantum symmetry if provided
    if (request.quantumSymmetry) {
      executionResult.quantumSymmetry = request.quantumSymmetry;
      executionResult.quantumCoherent = this.checkQuantumCoherence(
        request.quantumSymmetry
      );
    }

    return executionResult;
  }

  /**
   * Calculate intent-weighted result
   */
  private calculateIntentWeightedResult(
    intentProbabilities: Record<string, number>
  ): number {
    // Calculate weighted average of intent probabilities
    const values = Object.values(intentProbabilities);
    if (values.length === 0) {
      return 0;
    }

    const sum = values.reduce((a: number, b: number) => a + b, 0);
    return sum / values.length;
  }

  /**
   * Check quantum coherence
   */
  private checkQuantumCoherence(
    quantumSymmetry: Record<string, unknown>
  ): boolean {
    // Simplified coherence check
    // In production, would use actual quantum coherence algorithms
    return Object.keys(quantumSymmetry).length > 0;
  }

  /**
   * Get reality-spanning contract
   */
  async getRealitySpanningContract(contractId: string) {
    return prisma.reality_spanning_contracts.findUnique({
      where: { contractId },
      include: {
        contract_executions: {
          orderBy: {
            createdAt: 'desc',
          },
          take: 10,
        },
        contract_resolutions: {
          orderBy: {
            createdAt: 'desc',
          },
          take: 10,
        },
      },
    });
  }

  /**
   * Resolve contract conflict
   */
  async resolveContractConflict(
    contractId: string,
    resolutionType: 'reality_merge' | 'conflict_resolution',
    resolutionResult: Record<string, unknown>
  ): Promise<{
    resolved: boolean;
    resolutionId: string;
  }> {
    const contract = await prisma.reality_spanning_contracts.findUnique({
      where: { contractId },
    });

    if (!contract) {
      throw new Error(`Contract ${contractId} not found`);
    }

    // Create resolution
    const resolution = await prisma.contract_resolutions.create({
      data: {
        id: uuidv4(),
        resolutionId: `RES-${uuidv4()}`,
        contractId: contract.id,
        resolutionType,
        conflictDetails: {
          contractId: contract.contractId,
          conflictType: 'reality_disagreement',
        } as Prisma.InputJsonValue,
        resolutionResult: resolutionResult as Prisma.InputJsonValue,
        status: 'resolved',
        resolvedAt: new Date(),
        createdAt: new Date(),
        updatedAt: new Date(),
      },
    });

    // Update contract
    await prisma.reality_spanning_contracts.update({
      where: { contractId },
      data: {
        realityAgreement: true,
        agreementDetails: {
          resolved: true,
          resolutionId: resolution.resolutionId,
          resolvedAt: new Date().toISOString(),
        } as Prisma.InputJsonValue,
        status: 'agreed',
      },
    });

    return {
      resolved: true,
      resolutionId: resolution.resolutionId,
    };
  }
}

export const rssckService = new RssckService();

