/**
 * Business Management Hooks
 */

import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query';
import apiClient from '../api/client';
import { Business } from '../types';
import { getCookie } from '../utils/cookies';

/**
 * Hook to get current business
 */
export const useCurrentBusiness = () => {
  // Check token outside the query to use as dependency
  const token = getCookie('access_token');

  return useQuery<Business | null>({
    queryKey: ['currentBusiness', !!token], // Include token presence in query key to refetch when token changes
    queryFn: async () => {
      // Check if token exists before making request (from cookie)
      const currentToken = getCookie('access_token');
      if (!currentToken) {
        return null; // No token, return null instead of making request
      }

      const { data } = await apiClient.get('/api/business/current/');

      // Transform backend format to frontend format
      return {
        id: String(data.id),
        name: data.name,
        subdomain: data.subdomain,
        primaryColor: data.primary_color || '#3B82F6',  // Blue-500 default
        secondaryColor: data.secondary_color || '#1E40AF',  // Blue-800 default
        logoUrl: data.logo_url,
        emailLogoUrl: data.email_logo_url,
        logoDisplayMode: data.logo_display_mode || 'text-only',
        whitelabelEnabled: data.whitelabel_enabled,
        plan: data.tier, // Map tier to plan
        status: data.status,
        joinedAt: data.created_at ? new Date(data.created_at) : undefined,
        resourcesCanReschedule: data.resources_can_reschedule,
        requirePaymentMethodToBook: data.require_payment_method_to_book,
        cancellationWindowHours: data.cancellation_window_hours,
        lateCancellationFeePercent: data.late_cancellation_fee_percent,
        initialSetupComplete: data.initial_setup_complete,
        websitePages: data.website_pages || {},
        customerDashboardContent: data.customer_dashboard_content || [],
      };
    },
  });
};

/**
 * Hook to update business settings
 */
export const useUpdateBusiness = () => {
  const queryClient = useQueryClient();

  return useMutation({
    mutationFn: async (updates: Partial<Business>) => {
      const backendData: any = {};

      // Map frontend fields to backend fields
      if (updates.name) backendData.name = updates.name;
      if (updates.primaryColor) backendData.primary_color = updates.primaryColor;
      if (updates.secondaryColor) backendData.secondary_color = updates.secondaryColor;
      if (updates.logoUrl !== undefined) backendData.logo_url = updates.logoUrl;
      if (updates.emailLogoUrl !== undefined) backendData.email_logo_url = updates.emailLogoUrl;
      if (updates.logoDisplayMode !== undefined) backendData.logo_display_mode = updates.logoDisplayMode;
      if (updates.whitelabelEnabled !== undefined) {
        backendData.whitelabel_enabled = updates.whitelabelEnabled;
      }
      if (updates.resourcesCanReschedule !== undefined) {
        backendData.resources_can_reschedule = updates.resourcesCanReschedule;
      }
      if (updates.requirePaymentMethodToBook !== undefined) {
        backendData.require_payment_method_to_book = updates.requirePaymentMethodToBook;
      }
      if (updates.cancellationWindowHours !== undefined) {
        backendData.cancellation_window_hours = updates.cancellationWindowHours;
      }
      if (updates.lateCancellationFeePercent !== undefined) {
        backendData.late_cancellation_fee_percent = updates.lateCancellationFeePercent;
      }
      if (updates.initialSetupComplete !== undefined) {
        backendData.initial_setup_complete = updates.initialSetupComplete;
      }
      if (updates.websitePages !== undefined) {
        backendData.website_pages = updates.websitePages;
      }
      if (updates.customerDashboardContent !== undefined) {
        backendData.customer_dashboard_content = updates.customerDashboardContent;
      }

      const { data } = await apiClient.patch('/api/business/current/update/', backendData);
      return data;
    },
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: ['currentBusiness'] });
    },
  });
};

/**
 * Hook to get all resources for the current business
 */
export const useResources = () => {
  return useQuery({
    queryKey: ['resources'],
    queryFn: async () => {
      const { data } = await apiClient.get('/api/resources/');
      return data;
    },
    staleTime: 5 * 60 * 1000, // 5 minutes
  });
};

/**
 * Hook to create a new resource
 */
export const useCreateResource = () => {
  const queryClient = useQueryClient();

  return useMutation({
    mutationFn: async (resourceData: { name: string; type: string; user_id?: string }) => {
      const { data } = await apiClient.post('/api/resources/', resourceData);
      return data;
    },
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: ['resources'] });
    },
  });
};

/**
 * Hook to get all users for the current business
 */
export const useBusinessUsers = () => {
  return useQuery({
    queryKey: ['businessUsers'],
    queryFn: async () => {
      const { data } = await apiClient.get('/api/staff/');
      return data;
    },
    staleTime: 5 * 60 * 1000, // 5 minutes
  });
};