import * as plugins from './plugins.js';
import { logger } from './unifi.logger.js';
import { UnifiHttp } from './classes.unifihttp.js';
import { DoorManager } from './classes.doormanager.js';
import type {
  IUnifiAccessOptions,
  IAccessDevice,
  IAccessUser,
  IAccessPolicy,
  IAccessLocation,
  IAccessEvent,
  IAccessApiResponse,
  THttpMethod,
} from './interfaces/index.js';

/**
 * UniFi Access - Entry point for Access Controller API
 *
 * This class provides access to the UniFi Access API for managing doors,
 * users, credentials, and access events. It uses bearer token authentication.
 *
 * @example
 * ```typescript
 * const access = new UnifiAccess({
 *   host: '192.168.1.1',
 *   token: 'your-bearer-token',
 * });
 *
 * const doors = await access.doorManager.listDoors();
 * const users = await access.getUsers();
 *
 * // Unlock a door
 * await access.unlockDoor('door-id');
 * ```
 */
export class UnifiAccess {
  /** Access API port */
  private static readonly API_PORT = 12445;

  /** Access host */
  private host: string;

  /** Bearer token for authentication */
  private token: string;

  /** Whether to verify SSL certificates */
  private verifySsl: boolean;

  /** HTTP client */
  private http: UnifiHttp;

  /** Door manager instance */
  public doorManager: DoorManager;

  constructor(options: IUnifiAccessOptions) {
    this.host = options.host.replace(/\/$/, '');
    this.token = options.token;
    this.verifySsl = options.verifySsl ?? false;

    // Build base URL with Access API port
    const baseHost = this.host.startsWith('http') ? this.host : `https://${this.host}`;
    // Access API is typically on port 12445 at /api/v1/developer
    const baseUrl = `${baseHost}:${UnifiAccess.API_PORT}/api/v1/developer`;

    this.http = new UnifiHttp(baseUrl, this.verifySsl);
    this.http.setHeader('Authorization', `Bearer ${this.token}`);

    // Initialize managers
    this.doorManager = new DoorManager(this);

    logger.log('info', `UnifiAccess initialized for ${this.host}`);
  }

  /**
   * Make a request to the Access API
   */
  public async request<T>(
    method: THttpMethod,
    endpoint: string,
    data?: unknown
  ): Promise<T> {
    return this.http.request<T>(method, endpoint, data);
  }

  /**
   * Unlock a door by ID
   */
  public async unlockDoor(doorId: string): Promise<void> {
    logger.log('info', `Unlocking door: ${doorId}`);

    await this.request('PUT', `/door/${doorId}/unlock`);
  }

  /**
   * Lock a door by ID
   */
  public async lockDoor(doorId: string): Promise<void> {
    logger.log('info', `Locking door: ${doorId}`);

    await this.request('PUT', `/door/${doorId}/lock`);
  }

  /**
   * Get all doors (convenience method)
   */
  public async getDoors() {
    return this.doorManager.listDoors();
  }

  /**
   * Get all devices (hubs, readers, etc.)
   */
  public async getDevices(): Promise<IAccessDevice[]> {
    logger.log('debug', 'Fetching Access devices');

    const response = await this.request<IAccessApiResponse<IAccessDevice[]>>(
      'GET',
      '/device'
    );

    return response.data || [];
  }

  /**
   * Get a device by ID
   */
  public async getDeviceById(deviceId: string): Promise<IAccessDevice | null> {
    try {
      const response = await this.request<IAccessApiResponse<IAccessDevice>>(
        'GET',
        `/device/${deviceId}`
      );

      return response.data;
    } catch {
      return null;
    }
  }

  /**
   * Get all users/credential holders
   */
  public async getUsers(): Promise<IAccessUser[]> {
    logger.log('debug', 'Fetching Access users');

    const response = await this.request<IAccessApiResponse<IAccessUser[]>>(
      'GET',
      '/user'
    );

    return response.data || [];
  }

  /**
   * Get a user by ID
   */
  public async getUserById(userId: string): Promise<IAccessUser | null> {
    try {
      const response = await this.request<IAccessApiResponse<IAccessUser>>(
        'GET',
        `/user/${userId}`
      );

      return response.data;
    } catch {
      return null;
    }
  }

  /**
   * Create a new user
   */
  public async createUser(user: Partial<IAccessUser>): Promise<IAccessUser> {
    logger.log('info', `Creating user: ${user.first_name} ${user.last_name}`);

    const response = await this.request<IAccessApiResponse<IAccessUser>>(
      'POST',
      '/user',
      user
    );

    return response.data;
  }

  /**
   * Update a user
   */
  public async updateUser(userId: string, user: Partial<IAccessUser>): Promise<IAccessUser> {
    logger.log('info', `Updating user: ${userId}`);

    const response = await this.request<IAccessApiResponse<IAccessUser>>(
      'PUT',
      `/user/${userId}`,
      user
    );

    return response.data;
  }

  /**
   * Delete a user
   */
  public async deleteUser(userId: string): Promise<void> {
    logger.log('info', `Deleting user: ${userId}`);

    await this.request('DELETE', `/user/${userId}`);
  }

  /**
   * Get access policies/groups
   */
  public async getPolicies(): Promise<IAccessPolicy[]> {
    logger.log('debug', 'Fetching Access policies');

    const response = await this.request<IAccessApiResponse<IAccessPolicy[]>>(
      'GET',
      '/policy'
    );

    return response.data || [];
  }

  /**
   * Get a policy by ID
   */
  public async getPolicyById(policyId: string): Promise<IAccessPolicy | null> {
    try {
      const response = await this.request<IAccessApiResponse<IAccessPolicy>>(
        'GET',
        `/policy/${policyId}`
      );

      return response.data;
    } catch {
      return null;
    }
  }

  /**
   * Get locations
   */
  public async getLocations(): Promise<IAccessLocation[]> {
    logger.log('debug', 'Fetching Access locations');

    const response = await this.request<IAccessApiResponse<IAccessLocation[]>>(
      'GET',
      '/location'
    );

    return response.data || [];
  }

  /**
   * Get access events (entry log)
   */
  public async getEvents(
    options: { start?: number; end?: number; limit?: number; doorId?: string; userId?: string } = {}
  ): Promise<IAccessEvent[]> {
    logger.log('debug', 'Fetching Access events');

    const params = new URLSearchParams();
    if (options.start) params.append('start', options.start.toString());
    if (options.end) params.append('end', options.end.toString());
    if (options.limit) params.append('limit', options.limit.toString());
    if (options.doorId) params.append('door_id', options.doorId);
    if (options.userId) params.append('user_id', options.userId);

    const queryString = params.toString() ? `?${params.toString()}` : '';
    const response = await this.request<IAccessApiResponse<IAccessEvent[]>>(
      'GET',
      `/event${queryString}`
    );

    return response.data || [];
  }

  /**
   * Get recent access events
   */
  public async getRecentEvents(limit: number = 100): Promise<IAccessEvent[]> {
    return this.getEvents({ limit });
  }

  /**
   * Grant user access to a door
   */
  public async grantAccess(userId: string, doorId: string): Promise<void> {
    logger.log('info', `Granting user ${userId} access to door ${doorId}`);

    await this.request('POST', `/user/${userId}/access`, {
      door_id: doorId,
    });
  }

  /**
   * Revoke user access from a door
   */
  public async revokeAccess(userId: string, doorId: string): Promise<void> {
    logger.log('info', `Revoking user ${userId} access from door ${doorId}`);

    await this.request('DELETE', `/user/${userId}/access/${doorId}`);
  }

  /**
   * Assign NFC card to user
   */
  public async assignNfcCard(
    userId: string,
    cardToken: string,
    alias?: string
  ): Promise<void> {
    logger.log('info', `Assigning NFC card to user ${userId}`);

    await this.request('POST', `/user/${userId}/nfc_card`, {
      token: cardToken,
      alias: alias,
    });
  }

  /**
   * Remove NFC card from user
   */
  public async removeNfcCard(userId: string, cardId: string): Promise<void> {
    logger.log('info', `Removing NFC card ${cardId} from user ${userId}`);

    await this.request('DELETE', `/user/${userId}/nfc_card/${cardId}`);
  }

  /**
   * Set user PIN code
   */
  public async setUserPin(userId: string, pinCode: string): Promise<void> {
    logger.log('info', `Setting PIN for user ${userId}`);

    await this.request('PUT', `/user/${userId}`, {
      pin_code: pinCode,
    });
  }
}