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

// Types
export interface IOrganization {
  id: string;
  name: string;
  displayName: string;
  description?: string;
  avatarUrl?: string;
  isPublic: boolean;
  memberCount: number;
  createdAt: string;
}

export interface IRepository {
  id: string;
  organizationId: string;
  name: string;
  displayName: string;
  description?: string;
  protocols: string[];
  isPublic: boolean;
  packageCount: number;
  createdAt: string;
}

export interface IPackage {
  id: string;
  name: string;
  description?: string;
  protocol: string;
  organizationId: string;
  repositoryId: string;
  latestVersion?: string;
  isPrivate: boolean;
  downloadCount: number;
  updatedAt: string;
}

export interface ITokenScope {
  protocol: string;
  organizationId?: string;
  repositoryId?: string;
  actions: string[];
}

export interface IToken {
  id: string;
  name: string;
  tokenPrefix: string;
  protocols: string[];
  scopes?: ITokenScope[];
  organizationId?: string;
  createdById?: string;
  expiresAt?: string;
  lastUsedAt?: string;
  usageCount: number;
  createdAt: string;
}

export interface IAuditLog {
  id: string;
  actorId?: string;
  actorType: string;
  action: string;
  resourceType: string;
  resourceId?: string;
  resourceName?: string;
  success: boolean;
  timestamp: string;
}

@Injectable({ providedIn: 'root' })
export class ApiService {
  private readonly baseUrl = '/api/v1';

  constructor(private http: HttpClient) {}

  // Organizations
  getOrganizations(): Observable<{ organizations: IOrganization[] }> {
    return this.http.get<{ organizations: IOrganization[] }>(
      `${this.baseUrl}/organizations`
    );
  }

  getOrganization(id: string): Observable<IOrganization> {
    return this.http.get<IOrganization>(`${this.baseUrl}/organizations/${id}`);
  }

  createOrganization(data: {
    name: string;
    displayName?: string;
    description?: string;
    isPublic?: boolean;
  }): Observable<IOrganization> {
    return this.http.post<IOrganization>(`${this.baseUrl}/organizations`, data);
  }

  updateOrganization(
    id: string,
    data: Partial<IOrganization>
  ): Observable<IOrganization> {
    return this.http.put<IOrganization>(
      `${this.baseUrl}/organizations/${id}`,
      data
    );
  }

  deleteOrganization(id: string): Observable<{ message: string }> {
    return this.http.delete<{ message: string }>(
      `${this.baseUrl}/organizations/${id}`
    );
  }

  // Repositories
  getRepositories(orgId: string): Observable<{ repositories: IRepository[] }> {
    return this.http.get<{ repositories: IRepository[] }>(
      `${this.baseUrl}/organizations/${orgId}/repositories`
    );
  }

  getRepository(id: string): Observable<IRepository> {
    return this.http.get<IRepository>(`${this.baseUrl}/repositories/${id}`);
  }

  createRepository(
    orgId: string,
    data: {
      name: string;
      displayName?: string;
      description?: string;
      protocols?: string[];
      isPublic?: boolean;
    }
  ): Observable<IRepository> {
    return this.http.post<IRepository>(
      `${this.baseUrl}/organizations/${orgId}/repositories`,
      data
    );
  }

  updateRepository(
    id: string,
    data: Partial<IRepository>
  ): Observable<IRepository> {
    return this.http.put<IRepository>(`${this.baseUrl}/repositories/${id}`, data);
  }

  deleteRepository(id: string): Observable<{ message: string }> {
    return this.http.delete<{ message: string }>(
      `${this.baseUrl}/repositories/${id}`
    );
  }

  // Packages
  searchPackages(params?: {
    q?: string;
    protocol?: string;
    organizationId?: string;
    limit?: number;
    offset?: number;
  }): Observable<{ packages: IPackage[]; total: number }> {
    let httpParams = new HttpParams();
    if (params?.q) httpParams = httpParams.set('q', params.q);
    if (params?.protocol) httpParams = httpParams.set('protocol', params.protocol);
    if (params?.organizationId)
      httpParams = httpParams.set('organizationId', params.organizationId);
    if (params?.limit) httpParams = httpParams.set('limit', params.limit.toString());
    if (params?.offset) httpParams = httpParams.set('offset', params.offset.toString());

    return this.http.get<{ packages: IPackage[]; total: number }>(
      `${this.baseUrl}/packages`,
      { params: httpParams }
    );
  }

  getPackage(id: string): Observable<IPackage> {
    return this.http.get<IPackage>(
      `${this.baseUrl}/packages/${encodeURIComponent(id)}`
    );
  }

  deletePackage(id: string): Observable<{ message: string }> {
    return this.http.delete<{ message: string }>(
      `${this.baseUrl}/packages/${encodeURIComponent(id)}`
    );
  }

  // Tokens
  getTokens(organizationId?: string): Observable<{ tokens: IToken[] }> {
    let httpParams = new HttpParams();
    if (organizationId) {
      httpParams = httpParams.set('organizationId', organizationId);
    }
    return this.http.get<{ tokens: IToken[] }>(`${this.baseUrl}/tokens`, {
      params: httpParams,
    });
  }

  createToken(data: {
    name: string;
    organizationId?: string;
    protocols: string[];
    scopes: ITokenScope[];
    expiresInDays?: number;
  }): Observable<IToken & { token: string }> {
    return this.http.post<IToken & { token: string }>(
      `${this.baseUrl}/tokens`,
      data
    );
  }

  revokeToken(id: string): Observable<{ message: string }> {
    return this.http.delete<{ message: string }>(`${this.baseUrl}/tokens/${id}`);
  }

  // Audit
  getAuditLogs(params?: {
    organizationId?: string;
    resourceType?: string;
    startDate?: string;
    endDate?: string;
    limit?: number;
    offset?: number;
  }): Observable<{ logs: IAuditLog[]; total: number }> {
    let httpParams = new HttpParams();
    if (params?.organizationId)
      httpParams = httpParams.set('organizationId', params.organizationId);
    if (params?.resourceType)
      httpParams = httpParams.set('resourceType', params.resourceType);
    if (params?.startDate) httpParams = httpParams.set('startDate', params.startDate);
    if (params?.endDate) httpParams = httpParams.set('endDate', params.endDate);
    if (params?.limit) httpParams = httpParams.set('limit', params.limit.toString());
    if (params?.offset) httpParams = httpParams.set('offset', params.offset.toString());

    return this.http.get<{ logs: IAuditLog[]; total: number }>(
      `${this.baseUrl}/audit`,
      { params: httpParams }
    );
  }
}