holy fkn airball

lib/services/analytics-service.ts

@@ -0,0 +1,190 @@
+'use client';
+
+import { clientFetch } from '../api-client';
+
+// Analytics Types
+export interface AnalyticsOverview {
+  orders: {
+    total: number;
+    completed: number;
+    pending: number;
+    completionRate: string;
+  };
+  revenue: {
+    total: number;
+    monthly: number;
+    weekly: number;
+    averageOrderValue: number;
+  };
+  products: {
+    total: number;
+  };
+  customers: {
+    unique: number;
+  };
+  userType?: 'vendor' | 'staff';
+}
+
+export interface RevenueData {
+  _id: {
+    year: number;
+    month: number;
+    day: number;
+  };
+  revenue: number;
+  orders: number;
+}
+
+export interface ProductPerformance {
+  productId: string;
+  name: string;
+  image: string;
+  unitType: string;
+  currentStock: number;
+  stockStatus: string;
+  totalSold: number;
+  totalRevenue: number;
+  orderCount: number;
+  averagePrice: number;
+}
+
+export interface CustomerInsights {
+  totalCustomers: number;
+  segments: {
+    new: number;
+    returning: number;
+    loyal: number;
+    vip: number;
+  };
+  topCustomers: Array<{
+    _id: string;
+    orderCount: number;
+    totalSpent: number;
+    averageOrderValue: number;
+    firstOrder: string;
+    lastOrder: string;
+  }>;
+  averageOrdersPerCustomer: string;
+}
+
+export interface OrderAnalytics {
+  statusDistribution: Array<{
+    _id: string;
+    count: number;
+  }>;
+  dailyOrders: Array<{
+    _id: {
+      year: number;
+      month: number;
+      day: number;
+    };
+    orders: number;
+    revenue: number;
+  }>;
+  averageProcessingDays: number;
+}
+
+// Analytics Service Functions
+
+/**
+ * Get analytics overview data
+ * @param storeId Optional storeId for staff users
+ */
+export const getAnalyticsOverview = async (storeId?: string): Promise<AnalyticsOverview> => {
+  const url = storeId ? `/analytics/overview?storeId=${storeId}` : '/analytics/overview';
+  return clientFetch<AnalyticsOverview>(url);
+};
+
+/**
+ * Get revenue trends data
+ * @param period Time period in days (7, 30, 90)
+ * @param storeId Optional storeId for staff users
+ */
+export const getRevenueTrends = async (period: string = '30', storeId?: string): Promise<RevenueData[]> => {
+  const params = new URLSearchParams({ period });
+  if (storeId) params.append('storeId', storeId);
+  
+  const url = `/analytics/revenue-trends?${params.toString()}`;
+  return clientFetch<RevenueData[]>(url);
+};
+
+/**
+ * Get product performance data
+ * @param storeId Optional storeId for staff users
+ */
+export const getProductPerformance = async (storeId?: string): Promise<ProductPerformance[]> => {
+  const url = storeId ? `/analytics/product-performance?storeId=${storeId}` : '/analytics/product-performance';
+  return clientFetch<ProductPerformance[]>(url);
+};
+
+/**
+ * Get customer insights data
+ * @param storeId Optional storeId for staff users
+ */
+export const getCustomerInsights = async (storeId?: string): Promise<CustomerInsights> => {
+  const url = storeId ? `/analytics/customer-insights?storeId=${storeId}` : '/analytics/customer-insights';
+  return clientFetch<CustomerInsights>(url);
+};
+
+/**
+ * Get order analytics data
+ * @param period Time period in days (7, 30, 90)
+ * @param storeId Optional storeId for staff users
+ */
+export const getOrderAnalytics = async (period: string = '30', storeId?: string): Promise<OrderAnalytics> => {
+  const params = new URLSearchParams({ period });
+  if (storeId) params.append('storeId', storeId);
+  
+  const url = `/analytics/order-analytics?${params.toString()}`;
+  return clientFetch<OrderAnalytics>(url);
+};
+
+// Helper function to determine if user is staff and get storeId
+export const getStoreIdForUser = (): string | undefined => {
+  if (typeof window === 'undefined') return undefined;
+  
+  // Check if user is staff (you might need to adjust this based on your auth system)
+  const userType = localStorage.getItem('userType');
+  const storeId = localStorage.getItem('storeId');
+  
+  if (userType === 'staff' && storeId) {
+    return storeId;
+  }
+  
+  return undefined;
+};
+
+// Enhanced analytics functions that automatically handle storeId for staff users
+export const getAnalyticsOverviewWithStore = async (): Promise<AnalyticsOverview> => {
+  const storeId = getStoreIdForUser();
+  return getAnalyticsOverview(storeId);
+};
+
+export const getRevenueTrendsWithStore = async (period: string = '30'): Promise<RevenueData[]> => {
+  const storeId = getStoreIdForUser();
+  return getRevenueTrends(period, storeId);
+};
+
+export const getProductPerformanceWithStore = async (): Promise<ProductPerformance[]> => {
+  const storeId = getStoreIdForUser();
+  return getProductPerformance(storeId);
+};
+
+export const getCustomerInsightsWithStore = async (): Promise<CustomerInsights> => {
+  const storeId = getStoreIdForUser();
+  return getCustomerInsights(storeId);
+};
+
+export const getOrderAnalyticsWithStore = async (period: string = '30'): Promise<OrderAnalytics> => {
+  const storeId = getStoreIdForUser();
+  return getOrderAnalytics(period, storeId);
+};
+
+export function formatGBP(value: number) {
+  return value.toLocaleString('en-GB', {
+    style: 'currency',
+    currency: 'GBP',
+    minimumFractionDigits: 2,
+    maximumFractionDigits: 2,
+  });
+}