New alert service

frontend/src/api/hooks/useInventoryStatus.ts

@@ -0,0 +1,97 @@
+/**
+ * Direct Inventory Service Hook
+ *
+ * Phase 1 optimization: Call inventory service directly instead of through orchestrator.
+ * Eliminates duplicate fetches and reduces orchestrator load.
+ */
+
+import { useQuery, UseQueryResult } from '@tanstack/react-query';
+import { getTenantEndpoint } from '../../config/services';
+import { apiClient } from '../client';
+
+export interface StockStatus {
+  category: string;
+  in_stock: number;
+  low_stock: number;
+  out_of_stock: number;
+  total: number;
+}
+
+export interface InventoryOverview {
+  out_of_stock_count: number;
+  low_stock_count: number;
+  adequate_stock_count: number;
+  total_ingredients: number;
+  total_value?: number;
+  tenant_id: string;
+  timestamp: string;
+}
+
+export interface SustainabilityWidget {
+  waste_reduction_percentage: number;
+  local_sourcing_percentage: number;
+  seasonal_usage_percentage: number;
+  carbon_footprint_score?: number;
+}
+
+/**
+ * Fetch inventory overview directly from inventory service
+ */
+export const useInventoryOverview = (
+  tenantId: string,
+  options?: {
+    enabled?: boolean;
+    refetchInterval?: number;
+  }
+): UseQueryResult<InventoryOverview> => {
+  return useQuery({
+    queryKey: ['inventory', 'overview', tenantId],
+    queryFn: async () => {
+      const url = getTenantEndpoint('inventory', tenantId, 'inventory/dashboard/overview');
+      return await apiClient.get(url);
+    },
+    staleTime: 30000, // 30s cache
+    refetchInterval: options?.refetchInterval,
+    enabled: options?.enabled ?? true,
+  });
+};
+
+/**
+ * Fetch stock status by category directly from inventory service
+ */
+export const useStockStatusByCategory = (
+  tenantId: string,
+  options?: {
+    enabled?: boolean;
+  }
+): UseQueryResult<StockStatus[]> => {
+  return useQuery({
+    queryKey: ['inventory', 'stock-status', tenantId],
+    queryFn: async () => {
+      const url = getTenantEndpoint('inventory', tenantId, 'inventory/dashboard/stock-status');
+      return await apiClient.get(url);
+    },
+    staleTime: 30000,
+    enabled: options?.enabled ?? true,
+  });
+};
+
+/**
+ * Fetch sustainability widget data directly from inventory service
+ */
+export const useSustainabilityWidget = (
+  tenantId: string,
+  options?: {
+    enabled?: boolean;
+  }
+): UseQueryResult<SustainabilityWidget> => {
+  return useQuery({
+    queryKey: ['inventory', 'sustainability', 'widget', tenantId],
+    queryFn: async () => {
+      const url = getTenantEndpoint('inventory', tenantId, 'sustainability/widget');
+      return await apiClient.get(url);
+    },
+    staleTime: 60000, // 60s cache (changes less frequently)
+    enabled: options?.enabled ?? true,
+  });
+};