import type { UnifiController } from './classes.unifi-controller.js';
import type { INetworkDevice, IPortConfig } from './interfaces/index.js';

/**
 * Represents a UniFi network device (AP, switch, gateway, etc.)
 */
export class UnifiDevice implements INetworkDevice {
  /** Reference to parent controller */
  private controller?: UnifiController;
  /** Site ID for API calls */
  private siteId?: string;

  // INetworkDevice properties
  public _id: string;
  public mac: string;
  public model: string;
  public type: string;
  public name?: string;
  public site_id: string;
  public adopted: boolean;
  public ip: string;
  public state: number;
  public serial?: string;
  public version?: string;
  public uptime?: number;
  public last_seen?: number;
  public upgradable?: boolean;
  public upgrade_to_firmware?: string;
  public config_network?: {
    type?: string;
    ip?: string;
  };
  public ethernet_table?: Array<{
    name: string;
    mac: string;
    num_port?: number;
  }>;
  public port_overrides?: Array<{
    port_idx: number;
    name?: string;
    poe_mode?: string;
  }>;
  public sys_stats?: {
    loadavg_1?: number;
    loadavg_5?: number;
    loadavg_15?: number;
    mem_total?: number;
    mem_used?: number;
  };
  public led_override?: string;
  public led_override_color?: string;
  public led_override_color_brightness?: number;

  constructor() {
    this._id = '';
    this.mac = '';
    this.model = '';
    this.type = '';
    this.site_id = '';
    this.adopted = false;
    this.ip = '';
    this.state = 0;
  }

  /**
   * Create a device instance from API response object
   */
  public static createFromApiObject(
    apiObject: INetworkDevice,
    controller?: UnifiController,
    siteId?: string
  ): UnifiDevice {
    const device = new UnifiDevice();
    Object.assign(device, apiObject);
    device.controller = controller;
    device.siteId = siteId || apiObject.site_id;
    return device;
  }

  /**
   * Get the raw API object representation
   */
  public toApiObject(): INetworkDevice {
    return {
      _id: this._id,
      mac: this.mac,
      model: this.model,
      type: this.type,
      name: this.name,
      site_id: this.site_id,
      adopted: this.adopted,
      ip: this.ip,
      state: this.state,
      serial: this.serial,
      version: this.version,
      uptime: this.uptime,
      last_seen: this.last_seen,
      upgradable: this.upgradable,
      upgrade_to_firmware: this.upgrade_to_firmware,
      config_network: this.config_network,
      ethernet_table: this.ethernet_table,
      port_overrides: this.port_overrides,
      sys_stats: this.sys_stats,
      led_override: this.led_override,
      led_override_color: this.led_override_color,
      led_override_color_brightness: this.led_override_color_brightness,
    };
  }

  /**
   * Check if device is online (state 1 = connected)
   */
  public isOnline(): boolean {
    return this.state === 1;
  }

  /**
   * Check if device is an access point
   */
  public isAccessPoint(): boolean {
    return this.type === 'uap';
  }

  /**
   * Check if device is a switch
   */
  public isSwitch(): boolean {
    return this.type === 'usw';
  }

  /**
   * Check if device is a gateway/router
   */
  public isGateway(): boolean {
    return this.type === 'ugw' || this.type === 'udm';
  }

  /**
   * Check if device has available firmware upgrade
   */
  public hasUpgrade(): boolean {
    return this.upgradable === true && !!this.upgrade_to_firmware;
  }

  /**
   * Get device display name (name or MAC if no name)
   */
  public getDisplayName(): string {
    return this.name || this.mac;
  }

  /**
   * Restart the device
   */
  public async restart(): Promise<void> {
    if (!this.controller || !this.siteId) {
      throw new Error('Cannot restart device: no controller reference');
    }

    await this.controller.request(
      'POST',
      `/api/s/${this.siteId}/cmd/devmgr`,
      {
        cmd: 'restart',
        mac: this.mac,
      }
    );
  }

  /**
   * Upgrade the device firmware
   */
  public async upgrade(): Promise<void> {
    if (!this.controller || !this.siteId) {
      throw new Error('Cannot upgrade device: no controller reference');
    }

    await this.controller.request(
      'POST',
      `/api/s/${this.siteId}/cmd/devmgr`,
      {
        cmd: 'upgrade',
        mac: this.mac,
      }
    );
  }

  /**
   * Set LED override
   */
  public async setLedOverride(mode: 'default' | 'on' | 'off'): Promise<void> {
    if (!this.controller || !this.siteId) {
      throw new Error('Cannot set LED: no controller reference');
    }

    await this.controller.request(
      'PUT',
      `/api/s/${this.siteId}/rest/device/${this._id}`,
      {
        led_override: mode,
      }
    );
  }

  /**
   * Rename the device
   */
  public async rename(newName: string): Promise<void> {
    if (!this.controller || !this.siteId) {
      throw new Error('Cannot rename device: no controller reference');
    }

    await this.controller.request(
      'PUT',
      `/api/s/${this.siteId}/rest/device/${this._id}`,
      {
        name: newName,
      }
    );

    this.name = newName;
  }

  /**
   * Set port configuration
   */
  public async setPortConfig(portIdx: number, config: Partial<IPortConfig>): Promise<void> {
    if (!this.controller || !this.siteId) {
      throw new Error('Cannot set port config: no controller reference');
    }

    const portOverride = {
      port_idx: portIdx,
      ...config,
    };

    // Get existing port overrides and update
    const existingOverrides = this.port_overrides || [];
    const overrideIndex = existingOverrides.findIndex((p) => p.port_idx === portIdx);

    if (overrideIndex >= 0) {
      existingOverrides[overrideIndex] = { ...existingOverrides[overrideIndex], ...portOverride };
    } else {
      existingOverrides.push(portOverride);
    }

    await this.controller.request(
      'PUT',
      `/api/s/${this.siteId}/rest/device/${this._id}`,
      {
        port_overrides: existingOverrides,
      }
    );
  }
}