/**
 * ResoLang Quantum Processor for Identity Operations
 * Leverages PRN's quantum operations for identity management
 */

import { ResonantFragment, Prime, Amplitude, Entropy } from "../resolang";
import { PrimeResonanceIdentity, NetworkNode } from "../prn-node";
import { IIdentity, IDomain, IDomainObject, IPermission, IRole } from "../identity/interfaces";
import { IdentityId, DomainId, ObjectId } from "../identity/types";
import { globalPrimeMapper } from "../identity/prime-mapping";
import { TransferRequest, TransferType } from "../identity/ownership-transfer";
import { AuditEntry, AuditEventType } from "../identity/audit-trail";
import { isPrime } from "../core/math";

/**
 * Identity quantum state representation
 */
export class IdentityQuantumState {
  identityId: IdentityId;
  primeResonance: PrimeResonanceIdentity | null;
  permissions: Array<string>;
  roles: Array<string>;
  coherence: f64;

  constructor(identity: IIdentity) {
    this.identityId = identity.getId();
    this.primeResonance = null;
    this.permissions = new Array<string>();
    this.roles = new Array<string>();
    this.coherence = 1.0;
    
    // Map to prime resonance
    const mapping = globalPrimeMapper.getMapping(this.identityId);
    if (mapping) {
      this.primeResonance = mapping.getPrimeIdentity();
      this.coherence = mapping.strength;
    }
  }

  /**
   * Convert to ResonantFragment for processing
   */
  toFragment(): ResonantFragment {
    const coeffs = new Map<Prime, Amplitude>();
    
    // Use identity's prime resonance if available
    const primeResonance = this.primeResonance;
    if (primeResonance) {
      coeffs.set(primeResonance.gaussianPrime, this.coherence);
      coeffs.set(primeResonance.eisensteinPrime, this.coherence * 0.9);
      coeffs.set(primeResonance.quaternionicPrime, this.coherence * 0.8);
    } else {
      // Generate primes from identity ID
      let prime: Prime = 2;
      for (let i = 0; i < Math.min(this.identityId.length, 5); i++) {
        while (!isPrime(prime) && prime < 1000) prime++;
        coeffs.set(prime, (this.identityId.charCodeAt(i) as f64) / 255.0);
        prime++;
      }
    }
    
    // Calculate entropy based on permissions and roles
    const entropy = (this.permissions.length + this.roles.length) as f64 * 0.1;
    
    return new ResonantFragment(
      coeffs,
      this.coherence * 50.0, // centerX
      entropy * 10.0,        // centerY
      entropy
    );
  }
}

/**
 * Permission quantum evaluator using ResoLang
 */
export class QuantumPermissionEvaluator {
  private permissionCache: Map<string, ResonantFragment>;

  constructor() {
    this.permissionCache = new Map<string, ResonantFragment>();
  }

  /**
   * Evaluate permission using quantum superposition
   */
  evaluatePermission(
    identityState: IdentityQuantumState,
    requiredPermission: string,
    resource: string | null = null
  ): boolean {
    // Create permission fragment
    const permissionFragment = this.getPermissionFragment(requiredPermission, resource);
    
    // Create identity fragment
    const identityFragment = identityState.toFragment();
    
    // Calculate resonance between fragments
    const resonance = this.calculateResonance(identityFragment, permissionFragment);
    
    // Permission granted if resonance > threshold
    return resonance > 0.7;
  }

  /**
   * Calculate resonance between two fragments
   */
  calculateResonance(frag1: ResonantFragment, frag2: ResonantFragment): f64 {
    let totalResonance: f64 = 0;
    let sharedPrimes = 0;
    
    // Check for shared primes
    const primes1 = frag1.coeffs.keys();
    for (let i = 0; i < primes1.length; i++) {
      const prime = primes1[i];
      if (frag2.coeffs.has(prime)) {
        const amp1 = frag1.coeffs.get(prime);
        const amp2 = frag2.coeffs.get(prime);
        totalResonance += amp1 * amp2;
        sharedPrimes++;
      }
    }
    
    // Factor in entropy similarity
    const entropyDiff = Math.abs(frag1.entropy - frag2.entropy);
    const entropySimilarity = 1.0 / (1.0 + entropyDiff);
    
    // Calculate final resonance
    if (sharedPrimes > 0) {
      return (totalResonance / sharedPrimes) * entropySimilarity;
    }
    
    return entropySimilarity * 0.1; // Minimal resonance if no shared primes
  }

  /**
   * Get or create permission fragment
   */
  private getPermissionFragment(permission: string, resource: string | null): ResonantFragment {
    const key = permission + (resource ? ":" + resource : "");
    
    if (!this.permissionCache.has(key)) {
      const coeffs = new Map<Prime, Amplitude>();
      
      // Generate primes from permission string
      let prime: Prime = 2;
      for (let i = 0; i < Math.min(permission.length, 5); i++) {
        while (!isPrime(prime) && prime < 1000) prime++;
        coeffs.set(prime, (permission.charCodeAt(i) as f64) / 255.0);
        prime++;
      }
      
      // Add resource influence if specified
      if (resource) {
        for (let i = 0; i < Math.min(resource.length, 3); i++) {
          while (!isPrime(prime) && prime < 1000) prime++;
          coeffs.set(prime, (resource.charCodeAt(i) as f64) / 255.0 * 0.8);
          prime++;
        }
      }
      
      const entropy = permission.length as f64 * 0.05;
      const fragment = new ResonantFragment(
        coeffs,
        10.0,    // centerX
        entropy, // centerY
        entropy
      );
      
      this.permissionCache.set(key, fragment);
    }
    
    return this.permissionCache.get(key)!;
  }
}

/**
 * Quantum transfer processor using ResoLang
 */
export class QuantumTransferProcessor {
  private quantumEvaluator: QuantumPermissionEvaluator;

  constructor() {
    this.quantumEvaluator = new QuantumPermissionEvaluator();
  }

  /**
   * Process ownership transfer using quantum consensus
   */
  processTransfer(
    request: TransferRequest,
    approvers: Array<IIdentity>
  ): boolean {
    // Create transfer fragment
    const coeffs = new Map<Prime, Amplitude>();
    
    // Encode transfer details as primes
    let primes = [2, 3, 5, 7, 11, 13, 17, 19, 23, 29];
    coeffs.set(primes[0], 1.0); // Transfer marker
    coeffs.set(primes[1], (request.fromOwnerId.charCodeAt(0) as f64) / 255.0);
    coeffs.set(primes[2], (request.toOwnerId.charCodeAt(0) as f64) / 255.0);
    coeffs.set(primes[3], request.type == TransferType.DOMAIN ? 0.9 : 0.8);
    
    const transferFragment = new ResonantFragment(
      coeffs,
      50.0,  // centerX
      25.0,  // centerY
      0.5    // entropy
    );
    
    // Check approver permissions and calculate consensus
    let approvalScore: f64 = 0;
    let validApprovers = 0;
    
    for (let i = 0; i < approvers.length; i++) {
      const approverState = new IdentityQuantumState(approvers[i]);
      
      // Check if approver has permission
      const hasPermission = this.quantumEvaluator.evaluatePermission(
        approverState,
        request.type == TransferType.DOMAIN ? "domain.approve_transfer" : "object.approve_transfer",
        request.entityId
      );
      
      if (hasPermission) {
        const approverFragment = approverState.toFragment();
        const resonance = this.calculateResonance(transferFragment, approverFragment);
        approvalScore += resonance;
        validApprovers++;
      }
    }
    
    // Transfer approved if average approval score > threshold
    if (validApprovers > 0) {
      const avgScore = approvalScore / validApprovers;
      return avgScore > 0.6 && validApprovers >= request.requiredApprovals;
    }
    
    return false;
  }

  /**
   * Calculate resonance between fragments
   */
  private calculateResonance(frag1: ResonantFragment, frag2: ResonantFragment): f64 {
    // Reuse the evaluator's resonance calculation
    const evaluator = new QuantumPermissionEvaluator();
    return evaluator.calculateResonance(frag1, frag2);
  }
}

/**
 * Identity recovery using quantum entanglement
 */
export class QuantumIdentityRecovery {
  private recoveryThreshold: f64;
  private evaluator: QuantumPermissionEvaluator;

  constructor(recoveryThreshold: f64 = 0.85) {
    this.recoveryThreshold = recoveryThreshold;
    this.evaluator = new QuantumPermissionEvaluator();
  }

  /**
   * Recover identity using quantum signatures from recovery identities
   */
  recoverIdentity(
    lostIdentityId: IdentityId,
    recoveryIdentities: Array<IIdentity>,
    requiredSignatures: i32
  ): boolean {
    // Create lost identity fragment
    const coeffs = new Map<Prime, Amplitude>();
    
    // Generate primes from lost identity ID
    let prime: Prime = 2;
    for (let i = 0; i < Math.min(lostIdentityId.length, 5); i++) {
      while (!isPrime(prime) && prime < 1000) prime++;
      coeffs.set(prime, (lostIdentityId.charCodeAt(i) as f64) / 255.0 * 0.5); // Reduced amplitude
      prime++;
    }
    
    const lostFragment = new ResonantFragment(
      coeffs,
      25.0,  // centerX
      50.0,  // centerY
      0.7    // Higher entropy for lost identity
    );
    
    // Calculate recovery consensus
    let totalResonance: f64 = 0;
    let validRecoverers = 0;
    
    for (let i = 0; i < recoveryIdentities.length; i++) {
      const recoveryState = new IdentityQuantumState(recoveryIdentities[i]);
      const recoveryFragment = recoveryState.toFragment();
      
      // Calculate resonance between lost and recovery fragments
      const resonance = this.evaluator.calculateResonance(lostFragment, recoveryFragment);
      
      // Check if recoverer has recovery permission
      const hasPermission = this.evaluator.evaluatePermission(
        recoveryState,
        "identity.recover",
        lostIdentityId
      );
      
      if (hasPermission && resonance > 0.3) {
        totalResonance += resonance;
        validRecoverers++;
      }
    }
    
    // Check if we have enough signatures
    if (validRecoverers < requiredSignatures) {
      return false;
    }
    
    // Recovery successful if average resonance > threshold
    const avgResonance = totalResonance / validRecoverers;
    return avgResonance > this.recoveryThreshold;
  }
}

/**
 * Quantum audit processor for secure logging
 */
export class QuantumAuditProcessor {
  private auditChain: Array<ResonantFragment>;
  private evaluator: QuantumPermissionEvaluator;

  constructor() {
    this.auditChain = new Array<ResonantFragment>();
    this.evaluator = new QuantumPermissionEvaluator();
  }

  /**
   * Create quantum-secured audit entry
   */
  createAuditEntry(entry: AuditEntry): ResonantFragment {
    // Create audit fragment
    const coeffs = new Map<Prime, Amplitude>();
    
    // Use specific primes for audit data
    const auditPrimes = [31, 37, 41, 43, 47, 53, 59, 61, 67, 71];
    
    // Encode event type (convert enum to number first)
    coeffs.set(auditPrimes[0], (entry.eventType as i32 as f64) / 10.0);
    
    // Encode actor ID
    for (let i = 0; i < Math.min(entry.actorId.length, 3); i++) {
      coeffs.set(auditPrimes[i + 1], (entry.actorId.charCodeAt(i) as f64) / 255.0);
    }
    
    // Encode target ID
    for (let i = 0; i < Math.min(entry.targetId.length, 3); i++) {
      coeffs.set(auditPrimes[i + 4], (entry.targetId.charCodeAt(i) as f64) / 255.0);
    }
    
    // Encode timestamp
    const timestampHash = (entry.timestamp % 1000) as f64 / 1000.0;
    coeffs.set(auditPrimes[7], timestampHash);
    
    // Chain with previous entry if exists
    let chainStrength: f64 = 0;
    if (this.auditChain.length > 0) {
      const previousFragment = this.auditChain[this.auditChain.length - 1];
      chainStrength = this.evaluator.calculateResonance(previousFragment,
        new ResonantFragment(coeffs, 30.0, 30.0, 0.3));
      coeffs.set(auditPrimes[8], chainStrength);
    }
    
    const auditFragment = new ResonantFragment(
      coeffs,
      entry.timestamp as f64 % 100.0,  // centerX based on timestamp
      chainStrength * 100.0,            // centerY based on chain
      0.3                               // Low entropy for audit entries
    );
    
    // Add to chain
    this.auditChain.push(auditFragment);
    
    return auditFragment;
  }

  /**
   * Verify audit chain integrity
   */
  verifyChainIntegrity(): boolean {
    if (this.auditChain.length < 2) {
      return true; // Nothing to verify
    }
    
    for (let i = 1; i < this.auditChain.length; i++) {
      const current = this.auditChain[i];
      const previous = this.auditChain[i - 1];
      
      // Recalculate chain link
      const calculatedResonance = this.evaluator.calculateResonance(previous, current);
      
      // Get stored chain strength (prime 71)
      const storedStrength = current.coeffs.has(71) ? current.coeffs.get(71) : 0;
      
      // Verify chain integrity
      if (Math.abs(calculatedResonance - storedStrength) > 0.1) {
        return false; // Chain tampered
      }
    }
    
    return true;
  }
}

/**
 * Main ResoLang processor for identity operations
 */
export class IdentityResoLangProcessor {
  private quantumEvaluator: QuantumPermissionEvaluator;
  private transferProcessor: QuantumTransferProcessor;
  private recoveryProcessor: QuantumIdentityRecovery;
  private auditProcessor: QuantumAuditProcessor;
  private networkNode: NetworkNode | null;

  constructor(networkNode: NetworkNode | null = null) {
    this.quantumEvaluator = new QuantumPermissionEvaluator();
    this.transferProcessor = new QuantumTransferProcessor();
    this.recoveryProcessor = new QuantumIdentityRecovery();
    this.auditProcessor = new QuantumAuditProcessor();
    this.networkNode = networkNode;
  }

  /**
   * Check permission using quantum evaluation
   */
  checkPermission(
    identity: IIdentity,
    permission: string,
    resource: string | null = null
  ): boolean {
    const identityState = new IdentityQuantumState(identity);
    return this.quantumEvaluator.evaluatePermission(
      identityState,
      permission,
      resource
    );
  }

  /**
   * Process transfer request
   */
  processTransferRequest(
    request: TransferRequest,
    approvers: Array<IIdentity>
  ): boolean {
    return this.transferProcessor.processTransfer(request, approvers);
  }

  /**
   * Recover lost identity
   */
  recoverIdentity(
    lostIdentityId: IdentityId,
    recoveryIdentities: Array<IIdentity>,
    requiredSignatures: i32 = 3
  ): boolean {
    return this.recoveryProcessor.recoverIdentity(
      lostIdentityId,
      recoveryIdentities,
      requiredSignatures
    );
  }

  /**
   * Create secure audit entry
   */
  createAuditEntry(entry: AuditEntry): void {
    this.auditProcessor.createAuditEntry(entry);
  }

  /**
   * Verify audit integrity
   */
  verifyAuditIntegrity(): boolean {
    return this.auditProcessor.verifyChainIntegrity();
  }

  /**
   * Sync with network using quantum protocols
   */
  syncWithNetwork(): boolean {
    if (!this.networkNode) {
      return false;
    }
    
    // Use PRN's quantum sync protocols
    // This would integrate with the existing sync manager
    return true;
  }
}

/**
 * Global ResoLang processor instance
 */
export const globalResoLangProcessor = new IdentityResoLangProcessor();

/**
 * Helper to check permissions using quantum evaluation
 */
export function quantumCheckPermission(
  identity: IIdentity,
  permission: string,
  resource: string | null = null
): boolean {
  return globalResoLangProcessor.checkPermission(identity, permission, resource);
}