import init, { CohomologyEngine, SpectralEngine } from 'prime-radiant-advanced-wasm';

await init();

class CoherenceGatedAgent {
  constructor(embeddingDim = 768) {
    this.coherenceGate = new CohomologyEngine(embeddingDim);
    this.stabilityMonitor = new SpectralEngine();
    this.memories = [];
    this.thresholds = {
      coherence: 0.4,      // Block if energy > this
      stability: 0.6,      // Alert if risk > this
    };
  }

  // Add a new memory/belief
  remember(content, embedding) {
    const id = `mem_${this.memories.length}`;
    this.memories.push({ id, content, embedding, timestamp: Date.now() });

    // Rebuild coherence graph
    this.rebuildCoherenceGraph();

    // Check if this memory creates contradictions
    const energy = this.coherenceGate.sheaf_laplacian_energy();

    if (energy > this.thresholds.coherence) {
      console.warn(`⚠ New memory creates contradiction (energy: ${energy.toFixed(3)})`);
      return { accepted: false, reason: 'contradiction', energy };
    }

    return { accepted: true, energy };
  }

  rebuildCoherenceGraph() {
    this.coherenceGate = new CohomologyEngine(768);

    // Add all memories as nodes
    this.memories.forEach(mem => {
      this.coherenceGate.add_node(mem.id, mem.embedding);
    });

    // Connect memories by similarity
    for (let i = 0; i < this.memories.length; i++) {
      for (let j = i + 1; j < this.memories.length; j++) {
        const sim = this.cosineSim(
          this.memories[i].embedding,
          this.memories[j].embedding
        );
        if (sim > 0.2) {
          this.coherenceGate.add_edge(
            this.memories[i].id,
            this.memories[j].id,
            sim
          );
        }
      }
    }
  }

  // Gate an action on coherence
  async act(action, context) {
    // Build context graph
    const contextGate = new CohomologyEngine(768);

    context.facts.forEach((fact, i) => {
      contextGate.add_node(`fact_${i}`, fact.embedding);
    });

    for (let i = 0; i < context.facts.length; i++) {
      for (let j = i + 1; j < context.facts.length; j++) {
        const sim = this.cosineSim(
          context.facts[i].embedding,
          context.facts[j].embedding
        );
        contextGate.add_edge(`fact_${i}`, `fact_${j}`, sim);
      }
    }

    const energy = contextGate.sheaf_laplacian_energy();

    // GATE DECISION
    if (energy > this.thresholds.coherence) {
      return {
        executed: false,
        reason: 'Context contains contradictions',
        energy,
        recommendation: 'Resolve conflicts before proceeding'
      };
    }

    // Safe to proceed
    const result = await action();

    return {
      executed: true,
      result,
      energy,
      coherenceVerified: true
    };
  }

  // Periodic health check
  healthCheck() {
    const energy = this.coherenceGate.sheaf_laplacian_energy();
    const holes = this.coherenceGate.compute_cohomology_dimension(1);

    return {
      status: energy < 0.3 ? 'healthy' : energy < 0.6 ? 'warning' : 'critical',
      coherenceEnergy: energy,
      contradictionCount: holes,
      memoryCount: this.memories.length,
      recommendation: this.getRecommendation(energy, holes)
    };
  }

  getRecommendation(energy, holes) {
    if (energy > 0.7) {
      return 'CRITICAL: Multiple contradictions detected. Memory consolidation required.';
    }
    if (holes > 0) {
      return `WARNING: ${holes} unresolvable conflict(s) in memory. Review flagged memories.`;
    }
    if (energy > 0.4) {
      return 'CAUTION: Some tension in beliefs. Monitor for drift.';
    }
    return 'All systems nominal.';
  }

  cosineSim(a, b) {
    let dot = 0, normA = 0, normB = 0;
    for (let i = 0; i < a.length; i++) {
      dot += a[i] * b[i];
      normA += a[i] * a[i];
      normB += b[i] * b[i];
    }
    return dot / (Math.sqrt(normA) * Math.sqrt(normB));
  }
}

// Usage
const agent = new CoherenceGatedAgent();

// Add memories
agent.remember("The project deadline is Friday", embedFriday);
agent.remember("John is leading the project", embedJohn);

// This will be flagged as contradictory:
const result = agent.remember("The project deadline is next Monday", embedMonday);
// result.accepted = false, result.reason = 'contradiction'

// Gate an action
const actionResult = await agent.act(
  () => sendEmail("Reminder: deadline Friday"),
  { facts: [fridayDeadline, johnLeading] }
);
// actionResult.executed = true (coherent context)

// Health check
const health = agent.healthCheck();
// health.status = 'warning', health.recommendation = '...'