import { RegistryStorage } from './core/classes.registrystorage.js';
import { AuthManager } from './core/classes.authmanager.js';
import { BaseRegistry } from './core/classes.baseregistry.js';
import type { IRegistryConfig, IRequestContext, IResponse } from './core/interfaces.core.js';
import { OciRegistry } from './oci/classes.ociregistry.js';
import { NpmRegistry } from './npm/classes.npmregistry.js';

/**
 * Main registry orchestrator
 * Routes requests to appropriate protocol handlers (OCI or NPM)
 */
export class SmartRegistry {
  private storage: RegistryStorage;
  private authManager: AuthManager;
  private registries: Map<string, BaseRegistry> = new Map();
  private config: IRegistryConfig;
  private initialized: boolean = false;

  constructor(config: IRegistryConfig) {
    this.config = config;
    this.storage = new RegistryStorage(config.storage);
    this.authManager = new AuthManager(config.auth);
  }

  /**
   * Initialize the registry system
   */
  public async init(): Promise<void> {
    if (this.initialized) return;

    // Initialize storage
    await this.storage.init();

    // Initialize auth manager
    await this.authManager.init();

    // Initialize OCI registry if enabled
    if (this.config.oci?.enabled) {
      const ociBasePath = this.config.oci.basePath || '/oci';
      const ociRegistry = new OciRegistry(this.storage, this.authManager, ociBasePath);
      await ociRegistry.init();
      this.registries.set('oci', ociRegistry);
    }

    // Initialize NPM registry if enabled
    if (this.config.npm?.enabled) {
      const npmBasePath = this.config.npm.basePath || '/npm';
      const registryUrl = `http://localhost:5000${npmBasePath}`; // TODO: Make configurable
      const npmRegistry = new NpmRegistry(this.storage, this.authManager, npmBasePath, registryUrl);
      await npmRegistry.init();
      this.registries.set('npm', npmRegistry);
    }

    this.initialized = true;
  }

  /**
   * Handle an incoming HTTP request
   * Routes to the appropriate protocol handler based on path
   */
  public async handleRequest(context: IRequestContext): Promise<IResponse> {
    const path = context.path;

    // Route to OCI registry
    if (this.config.oci?.enabled && path.startsWith(this.config.oci.basePath)) {
      const ociRegistry = this.registries.get('oci');
      if (ociRegistry) {
        return ociRegistry.handleRequest(context);
      }
    }

    // Route to NPM registry
    if (this.config.npm?.enabled && path.startsWith(this.config.npm.basePath)) {
      const npmRegistry = this.registries.get('npm');
      if (npmRegistry) {
        return npmRegistry.handleRequest(context);
      }
    }

    // No matching registry
    return {
      status: 404,
      headers: { 'Content-Type': 'application/json' },
      body: {
        error: 'NOT_FOUND',
        message: 'No registry handler for this path',
      },
    };
  }

  /**
   * Get the storage instance (for testing/advanced use)
   */
  public getStorage(): RegistryStorage {
    return this.storage;
  }

  /**
   * Get the auth manager instance (for testing/advanced use)
   */
  public getAuthManager(): AuthManager {
    return this.authManager;
  }

  /**
   * Get a specific registry handler
   */
  public getRegistry(protocol: 'oci' | 'npm'): BaseRegistry | undefined {
    return this.registries.get(protocol);
  }

  /**
   * Check if the registry is initialized
   */
  public isInitialized(): boolean {
    return this.initialized;
  }
}