try to do better

frontend/src/services/expenseService.ts

@@ -0,0 +1,71 @@
+import { expenseApi } from '../api/client';
+import { Expense, CreateExpenseRequest } from '../types';
+import { handleApiError } from '../utils/errorHandler';
+
+export const expenseService = {
+  async getAllByCategory(familyId: number, categoryId: number): Promise<Expense[]> {
+    try {
+      const res = await expenseApi.getAllByCategory(familyId, categoryId);
+      return res.data;
+    } catch (error) {
+      handleApiError(error);
+    }
+  },
+
+  async getById(familyId: number, categoryId: number, expenseId: number): Promise<Expense> {
+    try {
+      const res = await expenseApi.getById(familyId, categoryId, expenseId);
+      return res.data;
+    } catch (error) {
+      handleApiError(error);
+    }
+  },
+
+  async create(familyId: number, categoryId: number, data: CreateExpenseRequest): Promise<Expense> {
+    try {
+      const res = await expenseApi.create(familyId, categoryId, data);
+      return res.data;
+    } catch (error) {
+      handleApiError(error);
+    }
+  },
+
+  async update(familyId: number, categoryId: number, expenseId: number, data: Partial<CreateExpenseRequest>): Promise<Expense> {
+    try {
+      const res = await expenseApi.update(familyId, categoryId, expenseId, data);
+      return res.data;
+    } catch (error) {
+      handleApiError(error);
+    }
+  },
+
+  async delete(familyId: number, categoryId: number, expenseId: number): Promise<void> {
+    try {
+      await expenseApi.delete(familyId, categoryId, expenseId);
+    } catch (error) {
+      handleApiError(error);
+    }
+  },
+
+  formatAmount(amount: number | string): string {
+    const num = typeof amount === 'string' ? parseFloat(amount) : amount;
+    return new Intl.NumberFormat('ru-RU', {
+      style: 'currency',
+      currency: 'RUB',
+      minimumFractionDigits: 0,
+      maximumFractionDigits: 0,
+    }).format(num);
+  },
+
+  sortByDate(expenses: Expense[], order: 'asc' | 'desc' = 'desc'): Expense[] {
+    return [...expenses].sort((a, b) => {
+      const dateA = new Date(a.created_at).getTime();
+      const dateB = new Date(b.created_at).getTime();
+      return order === 'desc' ? dateB - dateA : dateA - dateB;
+    });
+  },
+
+  getTotalAmount(expenses: Expense[]): number {
+    return expenses.reduce((sum, expense) => sum + Number(expense.amount), 0);
+  },
+};