import { Injectable, inject } from '@angular/core';
import { HttpClient } from '@angular/common/http';
import { Observable } from 'rxjs';

export interface ApiResponse<T = any> {
  success: boolean;
  data?: T;
  error?: string;
  message?: string;
}

export interface Service {
  id: number;
  name: string;
  image: string;
  registry?: string;
  envVars: Record<string, string>;
  port: number;
  domain?: string;
  containerID?: string;
  status: 'stopped' | 'starting' | 'running' | 'stopping' | 'failed';
  createdAt: number;
  updatedAt: number;
}

export interface Registry {
  id: number;
  url: string;
  username: string;
  createdAt: number;
}

export interface SystemStatus {
  docker: {
    running: boolean;
    version: any;
  };
  reverseProxy: {
    http: {
      running: boolean;
      port: number;
    };
    https: {
      running: boolean;
      port: number;
      certificates: number;
    };
    routes: number;
  };
  dns: {
    configured: boolean;
  };
  ssl: {
    configured: boolean;
    certbotInstalled: boolean;
  };
  services: {
    total: number;
    running: number;
    stopped: number;
  };
}

@Injectable({
  providedIn: 'root',
})
export class ApiService {
  private http = inject(HttpClient);
  private baseUrl = '/api';

  // System
  getStatus(): Observable<ApiResponse<SystemStatus>> {
    return this.http.get<ApiResponse<SystemStatus>>(`${this.baseUrl}/status`);
  }

  // Services
  getServices(): Observable<ApiResponse<Service[]>> {
    return this.http.get<ApiResponse<Service[]>>(`${this.baseUrl}/services`);
  }

  getService(name: string): Observable<ApiResponse<Service>> {
    return this.http.get<ApiResponse<Service>>(`${this.baseUrl}/services/${name}`);
  }

  createService(data: any): Observable<ApiResponse<Service>> {
    return this.http.post<ApiResponse<Service>>(`${this.baseUrl}/services`, data);
  }

  deleteService(name: string): Observable<ApiResponse> {
    return this.http.delete<ApiResponse>(`${this.baseUrl}/services/${name}`);
  }

  startService(name: string): Observable<ApiResponse> {
    return this.http.post<ApiResponse>(`${this.baseUrl}/services/${name}/start`, {});
  }

  stopService(name: string): Observable<ApiResponse> {
    return this.http.post<ApiResponse>(`${this.baseUrl}/services/${name}/stop`, {});
  }

  restartService(name: string): Observable<ApiResponse> {
    return this.http.post<ApiResponse>(`${this.baseUrl}/services/${name}/restart`, {});
  }

  getServiceLogs(name: string): Observable<ApiResponse<string>> {
    return this.http.get<ApiResponse<string>>(`${this.baseUrl}/services/${name}/logs`);
  }

  // Registries
  getRegistries(): Observable<ApiResponse<Registry[]>> {
    return this.http.get<ApiResponse<Registry[]>>(`${this.baseUrl}/registries`);
  }

  createRegistry(data: any): Observable<ApiResponse<Registry>> {
    return this.http.post<ApiResponse<Registry>>(`${this.baseUrl}/registries`, data);
  }

  deleteRegistry(url: string): Observable<ApiResponse> {
    return this.http.delete<ApiResponse>(`${this.baseUrl}/registries/${encodeURIComponent(url)}`);
  }

  // DNS
  getDnsRecords(): Observable<ApiResponse<any[]>> {
    return this.http.get<ApiResponse<any[]>>(`${this.baseUrl}/dns`);
  }

  createDnsRecord(data: any): Observable<ApiResponse> {
    return this.http.post<ApiResponse>(`${this.baseUrl}/dns`, data);
  }

  deleteDnsRecord(domain: string): Observable<ApiResponse> {
    return this.http.delete<ApiResponse>(`${this.baseUrl}/dns/${domain}`);
  }

  // SSL
  getSslCertificates(): Observable<ApiResponse<any[]>> {
    return this.http.get<ApiResponse<any[]>>(`${this.baseUrl}/ssl`);
  }

  renewSslCertificate(domain: string): Observable<ApiResponse> {
    return this.http.post<ApiResponse>(`${this.baseUrl}/ssl/${domain}/renew`, {});
  }

  // Settings
  getSettings(): Observable<ApiResponse<Record<string, string>>> {
    return this.http.get<ApiResponse<Record<string, string>>>(`${this.baseUrl}/settings`);
  }

  updateSetting(key: string, value: string): Observable<ApiResponse> {
    return this.http.post<ApiResponse>(`${this.baseUrl}/settings`, { key, value });
  }
}