import {
  DattoRMMConfig,
  DattoRMMDevice,
  DattoRMMSite,
  DattoRMMApiResponse,
  DattoRMMError,
} from '@/lib/types/datto-rmm';

export class DattoRMMClientSimple {
  private config: DattoRMMConfig;

  constructor(config: DattoRMMConfig) {
    this.config = config;
  }

  /**
   * Make an API request using Basic authentication directly
   */
  private async makeApiCall<T>(
    endpoint: string,
    options: RequestInit = {}
  ): Promise<T> {
    // Create Basic auth header using API key and secret
    const credentials = Buffer.from(`${this.config.apiKey}:${this.config.apiSecret}`).toString('base64');
    
    // Use the base URL directly with v2 API
    const url = `https://concord-api.centrastage.net/api/v2${endpoint}`;
    
    console.log(`Making API call to: ${url}`);
    
    const response = await fetch(url, {
      ...options,
      headers: {
        'Authorization': `Basic ${credentials}`,
        'Content-Type': 'application/json',
        'Accept': 'application/json',
        ...options.headers,
      },
    });

    if (!response.ok) {
      const errorText = await response.text();
      let errorMessage = `API Error: ${response.status}`;
      
      try {
        const errorData = JSON.parse(errorText) as DattoRMMError;
        errorMessage = `${errorData.error}: ${errorData.message}`;
      } catch {
        errorMessage += ` - ${errorText}`;
      }
      
      console.error('API call failed:', errorMessage);
      throw new Error(errorMessage);
    }

    const responseText = await response.text();
    if (!responseText) {
      return {} as T;
    }

    try {
      return JSON.parse(responseText) as T;
    } catch (error) {
      console.error('Failed to parse response:', responseText);
      throw new Error('Invalid JSON response from API');
    }
  }

  /**
   * Get all sites
   */
  async getSites(): Promise<DattoRMMSite[]> {
    const response = await this.makeApiCall<DattoRMMApiResponse<DattoRMMSite>>(
      '/sites',
      { method: 'GET' }
    );
    
    return response.items || [];
  }

  /**
   * Get site by name (for matching with Autotask company)
   */
  async getSiteByName(name: string): Promise<DattoRMMSite | null> {
    const sites = await this.getSites();
    const site = sites.find(s => 
      s.name.toLowerCase() === name.toLowerCase() ||
      s.name.toLowerCase().includes(name.toLowerCase())
    );
    
    return site || null;
  }

  /**
   * Get all devices
   */
  async getAllDevices(): Promise<DattoRMMDevice[]> {
    const response = await this.makeApiCall<DattoRMMApiResponse<DattoRMMDevice>>(
      '/devices',
      { method: 'GET' }
    );
    
    return response.items || [];
  }

  /**
   * Get devices for a specific site
   */
  async getDevicesBySite(siteId: string): Promise<DattoRMMDevice[]> {
    const response = await this.makeApiCall<DattoRMMApiResponse<DattoRMMDevice>>(
      `/sites/${siteId}/devices`,
      { method: 'GET' }
    );
    
    return response.items || [];
  }

  /**
   * Get devices by site name (matches with company name)
   */
  async getDevicesByCompanyName(companyName: string): Promise<DattoRMMDevice[]> {
    // First, find the site that matches the company name
    const site = await this.getSiteByName(companyName);
    
    if (!site) {
      console.warn(`No RMM site found for company: ${companyName}`);
      return [];
    }
    
    // Then get devices for that site
    return this.getDevicesBySite(site.id);
  }
}