automata-metaverse/src/automata/a4-context-evolver.ts

Automaton execution engines for self-referential CanvasL/JSONL systems

/**
 * A₄: Context Evolver Automaton
 * 
 * Role: C₄ evolution context management (CANVASL format)
 * Uses meta-log-db: r5rs:export-4d, r5rs:format-fibration
 */

import { BaseAutomaton } from './types.js';
import type { AutomatonId, SwarmContext, AutomatonMessage } from './types.js';
import type { MetaLogDb } from 'meta-log-db';

export interface A4ContextEvolverState {
  contexts: Array<{ id: string; volumes: string[]; data?: any }>;
  initialized: boolean;
}

/**
 * A₄: Context Evolver Automaton
 * 
 * Manages C₄ evolution contexts (4-cells) and evolves contexts from volumes
 */
export class A4_ContextEvolver extends BaseAutomaton {
  readonly id: 4 = 4;
  readonly name = 'A₄ Context Evolver';
  readonly role = 'C₄ evolution context management (CANVASL format)';

  state: A4ContextEvolverState = {
    contexts: [],
    initialized: false
  };

  constructor(private db?: MetaLogDb) {
    super();
  }

  async tick(swarm: SwarmContext): Promise<void> {
    if (!this.state.initialized) {
      await this.initialize(swarm);
    }

    // Context evolution happens based on volumes from A₃
    const a3 = swarm.get(3);
    if (a3 && 'getVolumes' in a3 && typeof a3.getVolumes === 'function') {
      const volumes = (a3 as any).getVolumes();
      await this.evolveContexts(volumes);
    }
  }

  private async initialize(swarm: SwarmContext): Promise<void> {
    this.state.initialized = true;
    console.log('A₄: Context Evolver initialized');
  }

  private async evolveContexts(volumes: Array<{ id: string; faces: string[] }>): Promise<void> {
    if (!this.db || volumes.length === 0) {
      return;
    }

    try {
      // Create evolution contexts from volumes
      // Simple implementation: create a context from each volume
      const newContexts: Array<{ id: string; volumes: string[] }> = [];

      for (const volume of volumes) {
        const contextId = `context-${volume.id}`;
        
        if (!this.state.contexts.find(c => c.id === contextId)) {
          newContexts.push({
            id: contextId,
            volumes: [volume.id]
          });
        }
      }

      if (newContexts.length === 0) {
        return;
      }

      // Create C₄ cells (evolution contexts) using meta-log-db
      const cells = await Promise.all(
        newContexts.map(context =>
          this.db!.executeR5RS('r5rs:create-cell', [
            4, // dimension (4-cell)
            context.id,
            context.volumes, // boundary: volumes that form the context
            { volumes: context.volumes, type: 'evolution-context', timestamp: Date.now() }
          ])
        )
      );

      // Build chain complex with contexts
      const complex = await this.db.executeR5RS('r5rs:build-chain-complex', [cells]);

      // Export to 4D (CANVASL) with format fibration
      const canvasl = await this.db.executeR5RS('r5rs:export-4d', [complex]);
      const canvas = JSON.parse(canvasl);

      // Update state
      this.state.contexts.push(...newContexts.map((c, i) => ({
        id: c.id,
        volumes: c.volumes,
        data: {
          format: 'canvasl-4d',
          betti: canvas.betti,
          euler: canvas.euler,
          valid: canvas.valid,
          ...canvas.chain
        }
      })));

      console.log(`A₄: Evolved ${newContexts.length} new contexts`);
    } catch (error) {
      console.error('A₄: Error evolving contexts:', error);
    }
  }

  async receive(from: AutomatonId, message: AutomatonMessage): Promise<void> {
    if (message.type === 'request-contexts') {
      // Could send contexts back to requester
    }
  }

  /**
   * Get all evolution contexts
   */
  getContexts(): Array<{ id: string; volumes: string[]; data?: any }> {
    return this.state.contexts;
  }
}