// ASSS Model Service
// Model execution: MODEL(FX, CBDC, SSU, commodity, behavior, risk)

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


export interface ModelInput {
  fx?: Record<string, unknown>;
  cbdc?: Record<string, unknown>;
  ssu?: Record<string, unknown>;
  commodity?: Record<string, unknown>;
  behavior?: Record<string, unknown>;
  risk?: Record<string, unknown>;
}

export interface ModelOutput {
  fx_projection?: Record<string, unknown>;
  cbdc_impact?: Record<string, unknown>;
  ssu_interaction?: Record<string, unknown>;
  commodity_cycle?: Record<string, unknown>;
  behavior_impact?: Record<string, unknown>;
  risk_assessment?: Record<string, unknown>;
}

export class AsssModelService {
  /**
   * Execute model
   * Formula: outcome = MODEL(FX, CBDC, SSU, commodity, behavior, risk)
   */
  async executeModel(simulationId: string, input?: ModelInput): Promise<ModelOutput> {
    const simulation = await prisma.sovereign_simulations.findUnique({
      where: { simulationId },
      include: {
        layers: true,
      },
    });

    if (!simulation) {
      throw new Error(`Simulation not found: ${simulationId}`);
    }

    // Get or generate input data
    const modelInput = input || (await this.generateModelInput(simulationId));

    // Execute model across layers
    const output: ModelOutput = {};

    // Macro layer: global economic patterns
    const macroLayer = simulation.identity_layers.find((l) => l.layerType === 'macro');
    if (macroLayer) {
      output.fx_projection = this.modelFX(modelInput.fx || {});
      output.commodity_cycle = this.modelCommodity(modelInput.commodity || {});
    }

    // Sovereign layer: SCB-specific policies
    const sovereignLayer = simulation.identity_layers.find((l) => l.layerType === 'sovereign');
    if (sovereignLayer) {
      output.cbdc_impact = this.modelCBDC(modelInput.cbdc || {});
    }

    // Micro layer: consumer and institutional behaviors
    const microLayer = simulation.identity_layers.find((l) => l.layerType === 'micro');
    if (microLayer) {
      output.behavior_impact = this.modelBehavior(modelInput.behavior || {});
    }

    // Asset layer: price and liquidity projections
    const assetLayer = simulation.identity_layers.find((l) => l.layerType === 'asset');
    if (assetLayer) {
      output.ssu_interaction = this.modelSSU(modelInput.ssu || {});
      output.risk_assessment = this.modelRisk(modelInput.risk || {});
    }

    // Save outcomes
    for (const [outcomeType, outcomeData] of Object.entries(output)) {
      await prisma.simulation_outcomes.create({
        data: {
          outcomeId: `ASSS-OUTCOME-${uuidv4()}`,
          simulationId,
          outcomeType,
          outcomeData: outcomeData as Record<string, unknown>,
          status: 'pending',
        },
      });
    }

    return output;
  }

  /**
   * Generate model input from simulation data
   */
  private async generateModelInput(simulationId: string): Promise<ModelInput> {
    // In production, this would fetch real data
    // For now, return simulated input
    return {
      fx: { volatility: 0.02, rate: 1.0 },
      cbdc: { supply: 1000000, velocity: 0.5 },
      ssu: { composition: { currency: 0.4, commodity: 0.3, cbdc: 0.2, lam: 0.1 } },
      commodity: { gold: 2000, oil: 80 },
      behavior: { ccv: 0.5, ilb: 0.1, srp: 0.3 },
      risk: { sri: 30, liquidity: 0.7 },
    };
  }

  /**
   * Model FX projections
   */
  private modelFX(fxInput: Record<string, unknown>): Record<string, unknown> {
    return {
      projected_volatility: (fxInput.volatility as number) * 1.1,
      projected_rate: (fxInput.rate as number) * 0.98,
      confidence: 0.85,
    };
  }

  /**
   * Model CBDC impact
   */
  private modelCBDC(cbdcInput: Record<string, unknown>): Record<string, unknown> {
    return {
      supply_impact: (cbdcInput.supply as number) * 1.05,
      velocity_impact: (cbdcInput.velocity as number) * 1.02,
      confidence: 0.80,
    };
  }

  /**
   * Model SSU interaction
   */
  private modelSSU(ssuInput: Record<string, unknown>): Record<string, unknown> {
    return {
      composition_stability: 0.95,
      liquidity_impact: 0.03,
      confidence: 0.90,
    };
  }

  /**
   * Model commodity cycle
   */
  private modelCommodity(commodityInput: Record<string, unknown>): Record<string, unknown> {
    return {
      gold_projection: (commodityInput.gold as number) * 1.02,
      oil_projection: (commodityInput.oil as number) * 0.99,
      confidence: 0.75,
    };
  }

  /**
   * Model behavior impact
   */
  private modelBehavior(behaviorInput: Record<string, unknown>): Record<string, unknown> {
    return {
      ccv_trend: (behaviorInput.ccv as number) * 1.01,
      ilb_trend: (behaviorInput.ilb as number) * 0.98,
      srp_trend: (behaviorInput.srp as number) * 1.02,
      confidence: 0.70,
    };
  }

  /**
   * Model risk assessment
   */
  private modelRisk(riskInput: Record<string, unknown>): Record<string, unknown> {
    return {
      sri_projection: (riskInput.sri as number) * 1.05,
      liquidity_projection: (riskInput.liquidity as number) * 0.98,
      confidence: 0.85,
    };
  }

  /**
   * Get outcomes for simulation
   */
  async getOutcomes(simulationId: string) {
    return await prisma.simulation_outcomes.findMany({
      where: { simulationId },
      orderBy: { calculatedAt: 'desc' },
    });
  }
}

export const asssModelService = new AsssModelService();

