// holographic-encoding.ts
// Handles holographic encoding/decoding for the Prime Resonance Formalism.

import { Amplitude } from "../types";

/**
 * Encodes data into a holographic-like structure using entropy fields.
 * This is a highly conceptual class based on the Prime Resonance paper.
 */
export class HolographicEncoding {
  // Placeholder for internal holographic grid or state
  private holographicGrid: Map<string, f64>; // Represents a conceptual spatial grid

  constructor() {
    this.holographicGrid = new Map<string, f64>();
  }

  /**
   * Conceptually encodes a point (x, y) into the holographic grid, influenced by an entropy field.
   * The 'entropyField' function would provide local entropy density.
   * The returned Amplitude represents the encoded 'brightness' or 'intensity' at that point.
   *
   * @param x X-coordinate in the conceptual holographic space.
   * @param y Y-coordinate in the conceptual holographic space.
   * @param entropyField A function that returns the entropy value for a given (x, y) coordinate.
   * @returns An Amplitude value representing the encoded information.
   */
  encode(x: f64, y: f64, entropyField: (x: f64, y: f64) => f64): Amplitude {
    // A simplified encoding: amplitude is inversely proportional to local entropy
    // and directly proportional to some intrinsic value of the point.
    // In a real PRN, this would involve wave interference patterns.
    const entropyAtPoint = entropyField(x, y);
    const conceptualValue = Math.sin(x * 0.1) + Math.cos(y * 0.1) + 2.0; // Some conceptual pattern
    
    // Store in conceptual grid (optional, for internal state)
    this.holographicGrid.set(`${x},${y}`, conceptualValue / (1.0 + entropyAtPoint));

    // Amplitude is higher where entropy is lower and conceptualValue is higher
    return conceptualValue / (1.0 + entropyAtPoint);
  }

  /**
   * Encodes a point with a single entropy value.
   * This is a simplified version for easier WebAssembly export.
   *
   * @param x X-coordinate.
   * @param y Y-coordinate.
   * @param entropy The entropy value at this point.
   * @returns An Amplitude value.
   */
  encodeValue(x: f64, y: f64, entropy: f64): Amplitude {
    const conceptualValue = Math.sin(x * 0.1) + Math.cos(y * 0.1) + 2.0;
    const amplitude = conceptualValue / (1.0 + entropy);
    this.holographicGrid.set(`${x},${y}`, amplitude);
    return amplitude;
  }

  /**
   * Conceptually decodes or retrieves information from the holographic grid.
   * This would involve pattern matching against the encoded states.
   * Placeholder for future complex pattern recognition.
   * @param queryX X-coordinate to query.
   * @param queryY Y-coordinate to query.
   * @returns The decoded amplitude at the queried point, or 0 if not found.
   */
  decode(queryX: f64, queryY: f64): Amplitude {
    const key = `${queryX},${queryY}`;
    if (this.holographicGrid.has(key)) {
      return this.holographicGrid.get(key);
    }
    return 0.0;
  }

  /**
   * Resets the holographic grid.
   */
  clear(): void {
    this.holographicGrid.clear();
  }
}