Add client purchase pattern analytics

src/dataService.ts

@@ -1,4 +1,4 @@
-import type { AuthUser, CampaignPreview, CampaignProcessSummary, CampaignQueueSummary, ClientAnalyticsItem, ClientDetailsAnalytics, ClientFilterOptions, ClientMetadataFilters, CreateUserResult, DashboardAnalytics, DateRange, ManagedUser, OrderData, ProductAnalyticsItem, ProductDetailsAnalytics, RfmAnalytics, StockData } from './types';
+import type { AuthUser, CampaignPreview, CampaignProcessSummary, CampaignQueueSummary, ClientAnalyticsItem, ClientDetailsAnalytics, ClientFilterOptions, ClientMetadataFilters, ClientPurchasePatternAnalytics, CreateUserResult, DashboardAnalytics, DateRange, ManagedUser, OrderData, ProductAnalyticsItem, ProductDetailsAnalytics, RfmAnalytics, StockData } from './types';
 import { formatDateParam } from './dateRanges';
 
 const API_URL = import.meta.env.VITE_API_URL || '/api';
@@ -300,6 +300,28 @@ export const fetchClientAnalytics = async (dateRange: DateRange, filters?: Parti
     }, options);
 };
 
+const emptyClientPurchasePattern = (): ClientPurchasePatternAnalytics => ({
+    purchaseWeekdays: ['Dom', 'Seg', 'Ter', 'Qua', 'Qui', 'Sex', 'Sab'].map(label => ({ label, value: 0 })),
+    purchaseHours: Array.from({ length: 24 }, (_, hour) => ({
+        label: `${String(hour).padStart(2, '0')}h`,
+        value: 0
+    }))
+});
+
+export const fetchClientPurchasePatternAnalytics = async (options?: CacheOptions): Promise<ClientPurchasePatternAnalytics> => {
+    const path = '/analytics/clients/purchase-pattern';
+    return getCachedAnalytics(path, async () => {
+        try {
+            const response = await authFetch(path, options?.force ? { cache: 'no-store' } : {});
+            if (!response.ok) return emptyClientPurchasePattern();
+            return await response.json();
+        } catch (error) {
+            console.error('Fetch client purchase pattern analytics failed', error);
+            return emptyClientPurchasePattern();
+        }
+    }, options);
+};
+
 export const fetchClientDetailsAnalytics = async (clientToken: string, dateRange: DateRange): Promise<ClientDetailsAnalytics | null> => {
     const path = `/analytics/clients/${encodeURIComponent(clientToken)}/details?${buildDateRangeParams(dateRange).toString()}`;
     return getCachedAnalytics(path, async () => {