// ================================================================
// frontend/src/api/services/tenant.ts
// ================================================================
/**
 * Tenant Service - Complete backend alignment
 *
 * Backend API structure (3-tier architecture):
 * - ATOMIC: tenants.py, tenant_members.py
 * - OPERATIONS: tenant_operations.py
 *
 * Last Updated: 2025-10-05
 * Status: ✅ Complete - Zero drift with backend
 */
import { apiClient } from '../client';
import {
  BakeryRegistration,
  TenantResponse,
  TenantAccessResponse,
  TenantUpdate,
  TenantMemberResponse,
  TenantStatistics,
  TenantSearchParams,
  TenantNearbyParams,
} from '../types/tenant';

export class TenantService {
  private readonly baseUrl = '/tenants';

  // ===================================================================
  // ATOMIC: Tenant CRUD
  // Backend: services/tenant/app/api/tenants.py
  // ===================================================================
  async registerBakery(bakeryData: BakeryRegistration): Promise<TenantResponse> {
    return apiClient.post<TenantResponse>(`${this.baseUrl}/register`, bakeryData);
  }

  async getTenant(tenantId: string): Promise<TenantResponse> {
    return apiClient.get<TenantResponse>(`${this.baseUrl}/${tenantId}`);
  }

  async getTenantBySubdomain(subdomain: string): Promise<TenantResponse> {
    return apiClient.get<TenantResponse>(`${this.baseUrl}/subdomain/${subdomain}`);
  }

  async getUserTenants(userId: string): Promise<TenantResponse[]> {
    // Use the /owned endpoint since /users/{userId} has validation issues
    return apiClient.get<TenantResponse[]>(`${this.baseUrl}/user/${userId}/owned`);
  }

  async getUserOwnedTenants(userId: string): Promise<TenantResponse[]> {
    return apiClient.get<TenantResponse[]>(`${this.baseUrl}/user/${userId}/owned`);
  }

  async updateTenant(tenantId: string, updateData: TenantUpdate): Promise<TenantResponse> {
    return apiClient.put<TenantResponse>(`${this.baseUrl}/${tenantId}`, updateData);
  }

  async deactivateTenant(tenantId: string): Promise<{ success: boolean; message: string }> {
    return apiClient.post<{ success: boolean; message: string }>(`${this.baseUrl}/${tenantId}/deactivate`);
  }

  async activateTenant(tenantId: string): Promise<{ success: boolean; message: string }> {
    return apiClient.post<{ success: boolean; message: string }>(`${this.baseUrl}/${tenantId}/activate`);
  }

  // ===================================================================
  // OPERATIONS: Access Control
  // Backend: services/tenant/app/api/tenant_operations.py
  // ===================================================================
  async verifyTenantAccess(tenantId: string, userId: string): Promise<TenantAccessResponse> {
    return apiClient.get<TenantAccessResponse>(`${this.baseUrl}/${tenantId}/access/${userId}`);
  }

  async getCurrentUserTenantAccess(tenantId: string): Promise<TenantAccessResponse> {
    // This will use the current user from the auth token
    // The backend endpoint handles extracting user_id from the token
    return apiClient.get<TenantAccessResponse>(`${this.baseUrl}/${tenantId}/my-access`);
  }

  // ===================================================================
  // OPERATIONS: Search & Discovery
  // Backend: services/tenant/app/api/tenant_operations.py
  // ===================================================================
  async searchTenants(params: TenantSearchParams): Promise<TenantResponse[]> {
    const queryParams = new URLSearchParams();
    
    if (params.search_term) queryParams.append('search_term', params.search_term);
    if (params.business_type) queryParams.append('business_type', params.business_type);
    if (params.city) queryParams.append('city', params.city);
    if (params.skip !== undefined) queryParams.append('skip', params.skip.toString());
    if (params.limit !== undefined) queryParams.append('limit', params.limit.toString());

    return apiClient.get<TenantResponse[]>(`${this.baseUrl}/search?${queryParams.toString()}`);
  }

  async getNearbyTenants(params: TenantNearbyParams): Promise<TenantResponse[]> {
    const queryParams = new URLSearchParams();
    
    queryParams.append('latitude', params.latitude.toString());
    queryParams.append('longitude', params.longitude.toString());
    if (params.radius_km !== undefined) queryParams.append('radius_km', params.radius_km.toString());
    if (params.limit !== undefined) queryParams.append('limit', params.limit.toString());

    return apiClient.get<TenantResponse[]>(`${this.baseUrl}/nearby?${queryParams.toString()}`);
  }

  // ===================================================================
  // OPERATIONS: Model Status Management
  // Backend: services/tenant/app/api/tenant_operations.py
  // ===================================================================
  async updateModelStatus(
    tenantId: string, 
    modelTrained: boolean, 
    lastTrainingDate?: string
  ): Promise<TenantResponse> {
    const queryParams = new URLSearchParams();
    queryParams.append('model_trained', modelTrained.toString());
    if (lastTrainingDate) queryParams.append('last_training_date', lastTrainingDate);

    return apiClient.put<TenantResponse>(`${this.baseUrl}/${tenantId}/model-status?${queryParams.toString()}`);
  }

  // ===================================================================
  // ATOMIC: Team Member Management
  // Backend: services/tenant/app/api/tenant_members.py
  // ===================================================================
  async addTeamMember(
    tenantId: string, 
    userId: string, 
    role: string
  ): Promise<TenantMemberResponse> {
    return apiClient.post<TenantMemberResponse>(`${this.baseUrl}/${tenantId}/members`, {
      user_id: userId,
      role: role,
    });
  }

  async getTeamMembers(tenantId: string, activeOnly: boolean = true): Promise<TenantMemberResponse[]> {
    const queryParams = new URLSearchParams();
    queryParams.append('active_only', activeOnly.toString());
    
    return apiClient.get<TenantMemberResponse[]>(`${this.baseUrl}/${tenantId}/members?${queryParams.toString()}`);
  }

  async updateMemberRole(
    tenantId: string, 
    memberUserId: string, 
    newRole: string
  ): Promise<TenantMemberResponse> {
    return apiClient.put<TenantMemberResponse>(
      `${this.baseUrl}/${tenantId}/members/${memberUserId}/role`, 
      { new_role: newRole }
    );
  }

  async removeTeamMember(tenantId: string, memberUserId: string): Promise<{ success: boolean; message: string }> {
    return apiClient.delete<{ success: boolean; message: string }>(`${this.baseUrl}/${tenantId}/members/${memberUserId}`);
  }

  // ===================================================================
  // OPERATIONS: Statistics & Admin
  // Backend: services/tenant/app/api/tenant_operations.py
  // ===================================================================
  async getTenantStatistics(): Promise<TenantStatistics> {
    return apiClient.get<TenantStatistics>(`${this.baseUrl}/statistics`);
  }

  // ===================================================================
  // Frontend Context Management
  // ===================================================================
  setCurrentTenant(tenant: TenantResponse): void {
    // Set tenant context in API client
    if (tenant && tenant.id) {
      apiClient.setTenantId(tenant.id);
    }
  }

  clearCurrentTenant(): void {
    // Clear tenant context from API client
    apiClient.setTenantId(null);
  }
}

export const tenantService = new TenantService();