extract frontend analytics helpers

src/analytics/clients.ts

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+import type { DateRange, OrderData } from '../types';
+import { parseOrderDate } from '../dataService';
+import { filterOrdersByDateRange, getClientDisplayName, getOrderItemRevenue } from './orders';
+
+export type ClientSortOption = 'recent' | 'spent_desc' | 'spent_asc' | 'items_desc' | 'items_asc';
+
+export interface ClientSummary {
+  name: string;
+  phone: string;
+  totalSpent: number;
+  totalItems: number;
+  orderCount: number;
+  lastPurchase: number;
+}
+
+export interface GroupedClientOrder {
+  date: string;
+  orderId: string;
+  orderTotal: number;
+  items: OrderData[];
+}
+
+export interface ClientDetailsMetrics {
+  groupedOrders: GroupedClientOrder[];
+  totalSpent: number;
+  totalItems: number;
+  clientPhone: string;
+}
+
+export const buildClientsSummary = (
+  ordersData: OrderData[],
+  dateRange: DateRange,
+  searchTerm: string,
+  sortBy: ClientSortOption
+): ClientSummary[] => {
+  const orders = filterOrdersByDateRange(ordersData, dateRange);
+  const clientMap: Record<string, {
+    totalSpent: number;
+    totalItems: number;
+    uniqueOrders: Set<string>;
+    lastPurchase: number;
+    phone: string;
+  }> = {};
+
+  orders.forEach(order => {
+    const clientName = getClientDisplayName(order);
+
+    if (!clientMap[clientName]) {
+      clientMap[clientName] = { totalSpent: 0, totalItems: 0, uniqueOrders: new Set(), lastPurchase: 0, phone: '' };
+    }
+
+    if (order.Fone_Cliente) {
+      clientMap[clientName].phone = order.Fone_Cliente;
+    }
+
+    clientMap[clientName].totalSpent += getOrderItemRevenue(order);
+    clientMap[clientName].totalItems += order.Quantidade;
+    clientMap[clientName].uniqueOrders.add(`${order.Data_Pedido}_${order.Valor_Pedido}`);
+
+    const orderTime = parseOrderDate(order.Data_Pedido).getTime();
+    if (orderTime > clientMap[clientName].lastPurchase) {
+      clientMap[clientName].lastPurchase = orderTime;
+    }
+  });
+
+  const normalizedSearch = searchTerm.trim().toLowerCase();
+  const clients = Object.keys(clientMap).map(name => ({
+    name,
+    phone: clientMap[name].phone,
+    totalSpent: clientMap[name].totalSpent,
+    totalItems: clientMap[name].totalItems,
+    orderCount: clientMap[name].uniqueOrders.size,
+    lastPurchase: clientMap[name].lastPurchase
+  }));
+
+  const filteredClients = normalizedSearch
+    ? clients.filter(client => client.name.toLowerCase().includes(normalizedSearch))
+    : clients;
+
+  return filteredClients.sort((a, b) => {
+    switch (sortBy) {
+      case 'recent': return b.lastPurchase - a.lastPurchase;
+      case 'spent_desc': return b.totalSpent - a.totalSpent;
+      case 'spent_asc': return a.totalSpent - b.totalSpent;
+      case 'items_desc': return b.totalItems - a.totalItems;
+      case 'items_asc': return a.totalItems - b.totalItems;
+      default: return 0;
+    }
+  });
+};
+
+export const buildClientDetailsMetrics = (ordersData: OrderData[], clientName: string): ClientDetailsMetrics => {
+  const clientOrders = ordersData.filter(order => getClientDisplayName(order) === clientName);
+  const groupedOrdersMap: Record<string, GroupedClientOrder> = {};
+  let clientPhone = '';
+  let totalSpent = 0;
+  let totalItems = 0;
+
+  clientOrders.forEach(order => {
+    if (order.Fone_Cliente && !clientPhone) clientPhone = order.Fone_Cliente;
+
+    totalSpent += getOrderItemRevenue(order);
+    totalItems += order.Quantidade;
+
+    const key = order.ID_Pedido || `${order.Data_Pedido}_${order.Valor_Pedido}`;
+    if (!groupedOrdersMap[key]) {
+      groupedOrdersMap[key] = {
+        date: order.Data_Pedido,
+        orderId: order.ID_Pedido || key,
+        orderTotal: order.Valor_Pedido,
+        items: []
+      };
+    }
+    groupedOrdersMap[key].items.push(order);
+  });
+
+  const groupedOrders = Object.values(groupedOrdersMap).sort((a, b) => {
+    return parseOrderDate(b.date).getTime() - parseOrderDate(a.date).getTime();
+  });
+
+  return { groupedOrders, totalSpent, totalItems, clientPhone };
+};