// MRLI Conflict Service
// Conflict resolution using sovereign trust graph

import prisma from '@/shared/database/prisma';


export interface ConflictResolution {
  resolution: Record<string, unknown>;
  resolutionMethod: string;
  resolvedState: Record<string, unknown>;
}

export class MrliConflictService {
  /**
   * Resolve conflict using sovereign trust graph
   */
  async resolveConflict(syncId: string): Promise<ConflictResolution> {
    const sync = await prisma.mrli_synchronizations.findUnique({
      where: { syncId },
      include: {
        ledger: true,
      },
    });

    if (!sync) {
      throw new Error(`Synchronization not found: ${syncId}`);
    }

    // Get all states
    const states = [
      { source: 'classical', state: sync.classicalState },
      { source: 'dlt', state: sync.dltState },
      { source: 'quantum', state: sync.quantumState },
      { source: 'simulated', state: sync.simulatedState },
    ].filter((s) => s.state !== null);

    // Resolve conflicts using priority: quantum > dlt > classical > simulated
    // In production, this would use actual sovereign trust graph
    const resolvedState: Record<string, unknown> = {};
    const resolution: Record<string, unknown> = {};

    // Priority order
    const priority = ['quantum', 'dlt', 'classical', 'simulated'];

    for (const prioritySource of priority) {
      const stateData = states.find((s) => s.source === prioritySource);
      if (stateData && stateData.state) {
        Object.assign(resolvedState, stateData.state);
        resolution[prioritySource] = 'used';
      }
    }

    return {
      resolution,
      resolutionMethod: 'sovereign_trust_graph',
      resolvedState,
    };
  }

  /**
   * Resolve conflict using DBIS arbitration
   */
  async resolveConflictByArbitration(syncId: string): Promise<ConflictResolution> {
    const sync = await prisma.mrli_synchronizations.findUnique({
      where: { syncId },
    });

    if (!sync) {
      throw new Error(`Synchronization not found: ${syncId}`);
    }

    // DBIS arbitration logic (simplified)
    // In production, this would use actual DBIS arbitration framework
    const states = [
      { source: 'classical', state: sync.classicalState },
      { source: 'dlt', state: sync.dltState },
      { source: 'quantum', state: sync.quantumState },
      { source: 'simulated', state: sync.simulatedState },
    ].filter((s) => s.state !== null);

    // Use most recent or most authoritative state
    const resolvedState: Record<string, unknown> = {};
    const resolution: Record<string, unknown> = {};

    // For DBIS arbitration, prefer quantum state (most authoritative)
    const quantumState = states.find((s) => s.source === 'quantum');
    if (quantumState && quantumState.state) {
      Object.assign(resolvedState, quantumState.state);
      resolution['dbis_arbitration'] = 'quantum_state_selected';
    } else {
      // Fallback to DLT state
      const dltState = states.find((s) => s.source === 'dlt');
      if (dltState && dltState.state) {
        Object.assign(resolvedState, dltState.state);
        resolution['dbis_arbitration'] = 'dlt_state_selected';
      }
    }

    return {
      resolution,
      resolutionMethod: 'dbis_arbitration',
      resolvedState,
    };
  }
}

export const mrliConflictService = new MrliConflictService();

