zmiany

2026-04-06 14:37:42 +02:00
parent 237596bd52
commit 80e181ea3f
41 changed files with 14959 additions and 1023 deletions
--- a/api/src/services/statistics.service.ts
+++ b/api/src/services/statistics.service.ts
@@ -1,28 +1,84 @@
 import { Between, In } from 'typeorm';
 import { AppDataSource } from '../config/data-source.js';
+import { Budget } from '../entities/Budget.js';
 import { Expense } from '../entities/Expense.js';
-export type StatsFilters = { userId?: string; startDate?: string; endDate?: string; categoryIds?: string[] };
-export type FlatExpense = { id: string; amount: number; expenseDate: string; categoryId: string; categoryName: string };
+import { RecurringExpense } from '../entities/RecurringExpense.js';
+
+export type StatsFilters = { userId?: string; startDate?: string; endDate?: string; categoryIds?: string[]; tag?: string; status?: string };
+export type FlatExpense = {
+  id: string;
+  amount: number;
+  expenseDate: string;
+  categoryId: string;
+  categoryName: string;
+  tags?: string[];
+  status?: string;
+};
+
 const labelMonth = (date: string) => date.slice(0, 7);
-const labelQuarter = (date: string) => { const [year, month] = date.split('-').map(Number); return `${year}-Q${Math.ceil(month / 3)}`; };
+const labelQuarter = (date: string) => {
+  const [year, month] = date.split('-').map(Number);
+  return `${year}-Q${Math.ceil(month / 3)}`;
+};
 const labelYear = (date: string) => date.slice(0, 4);
-export const buildBucketLabel = (date: string, bucket: 'month' | 'quarter' | 'year') => bucket === 'year' ? labelYear(date) : bucket === 'quarter' ? labelQuarter(date) : labelMonth(date);
+
+export const buildBucketLabel = (date: string, bucket: 'month' | 'quarter' | 'year') =>
+  bucket === 'year' ? labelYear(date) : bucket === 'quarter' ? labelQuarter(date) : labelMonth(date);
+
 export const aggregateStatistics = (expenses: FlatExpense[], bucket: 'month' | 'quarter' | 'year' = 'month') => {
  const total = expenses.reduce((sum, item) => sum + item.amount, 0);
  const byCategoryMap = new Map<string, { categoryId: string; categoryName: string; total: number; count: number }>();
  const timelineMap = new Map<string, number>();
+  const byTagMap = new Map<string, number>();
+  const byStatusMap = new Map<string, number>();
+
  for (const expense of expenses) {
-    const existing = byCategoryMap.get(expense.categoryId) ?? { categoryId: expense.categoryId, categoryName: expense.categoryName, total: 0, count: 0 };
+    const existing = byCategoryMap.get(expense.categoryId) ?? {
+      categoryId: expense.categoryId,
+      categoryName: expense.categoryName,
+      total: 0,
+      count: 0
+    };
    existing.total += expense.amount;
    existing.count += 1;
    byCategoryMap.set(expense.categoryId, existing);
+
    const bucketLabel = buildBucketLabel(expense.expenseDate, bucket);
    timelineMap.set(bucketLabel, (timelineMap.get(bucketLabel) ?? 0) + expense.amount);
+
+    for (const tag of expense.tags ?? []) {
+      byTagMap.set(tag, (byTagMap.get(tag) ?? 0) + expense.amount);
+    }
+
+    if (expense.status) byStatusMap.set(expense.status, (byStatusMap.get(expense.status) ?? 0) + 1);
  }
-  const byCategory = [...byCategoryMap.values()].sort((a, b) => b.total - a.total).map((item) => ({ ...item, total: Number(item.total.toFixed(2)) }));
-  const timeline = [...timelineMap.entries()].map(([label, totalValue]) => ({ label, total: Number(totalValue.toFixed(2)) })).sort((a, b) => a.label.localeCompare(b.label));
-  return { total: Number(total.toFixed(2)), count: expenses.length, average: expenses.length ? Number((total / expenses.length).toFixed(2)) : 0, byCategory, timeline, topCategory: byCategory[0] ?? null };
+
+  const byCategory = [...byCategoryMap.values()]
+    .sort((a, b) => b.total - a.total)
+    .map((item) => ({ ...item, total: Number(item.total.toFixed(2)) }));
+  const timeline = [...timelineMap.entries()]
+    .map(([label, totalValue]) => ({ label, total: Number(totalValue.toFixed(2)) }))
+    .sort((a, b) => a.label.localeCompare(b.label));
+  const byTag = [...byTagMap.entries()]
+    .map(([tag, totalValue]) => ({ tag, total: Number(totalValue.toFixed(2)) }))
+    .sort((a, b) => b.total - a.total)
+    .slice(0, 10);
+  const byStatus = [...byStatusMap.entries()]
+    .map(([status, count]) => ({ status, count }))
+    .sort((a, b) => b.count - a.count);
+
+  return {
+    total: Number(total.toFixed(2)),
+    count: expenses.length,
+    average: expenses.length ? Number((total / expenses.length).toFixed(2)) : 0,
+    byCategory,
+    timeline,
+    byTag,
+    byStatus,
+    topCategory: byCategory[0] ?? null
+  };
 };
+
 export const getStatistics = async (filters: StatsFilters, bucket: 'month' | 'quarter' | 'year' = 'month') => {
  const repo = AppDataSource.getRepository(Expense);
  const where: Record<string, unknown> = {};
@@ -31,11 +87,119 @@ export const getStatistics = async (filters: StatsFilters, bucket: 'month' | 'qu
  else if (filters.startDate) where.expenseDate = Between(filters.startDate, '2999-12-31');
  else if (filters.endDate) where.expenseDate = Between('1900-01-01', filters.endDate);
  if (filters.categoryIds?.length) where.category = { id: In(filters.categoryIds) };
+  if (filters.status) where.status = filters.status;
+
  const expenses = await repo.find({ where, relations: { category: true }, order: { expenseDate: 'DESC' } });
-  return aggregateStatistics(expenses.map((expense) => ({ id: expense.id, amount: expense.amount, expenseDate: expense.expenseDate, categoryId: expense.category.id, categoryName: expense.category.name })), bucket);
+  const filteredByTag = filters.tag
+    ? expenses.filter((expense) => (expense.tags ?? []).some((tag) => tag.toLowerCase() === filters.tag!.toLowerCase()))
+    : expenses;
+
+  return aggregateStatistics(
+    filteredByTag.map((expense) => ({
+      id: expense.id,
+      amount: expense.amount,
+      expenseDate: expense.expenseDate,
+      categoryId: expense.category.id,
+      categoryName: expense.category.name,
+      tags: expense.tags ?? [],
+      status: expense.status
+    })),
+    bucket
+  );
 };
-export const detectPotentialDuplicate = async (input: { userId: string; amount: number; expenseDate: string; merchant?: string | null }) => {
-  const repo = AppDataSource.getRepository(Expense);
-  const candidates = await repo.find({ where: { user: { id: input.userId }, expenseDate: Between(input.expenseDate, input.expenseDate) } });
-  return candidates.some((item) => Math.abs(item.amount - input.amount) < 0.001 && (input.merchant ? item.merchant?.toLowerCase() === input.merchant.toLowerCase() : true));
+
+const currentMonthKey = () => {
+  const date = new Date();
+  return `${date.getFullYear()}-${`${date.getMonth() + 1}`.padStart(2, '0')}`;
+};
+
+const monthRange = (monthKey: string) => ({ startDate: `${monthKey}-01`, endDate: `${monthKey}-31` });
+
+export const getCashflowSummary = async (userId: string) => {
+  const expenseRepo = AppDataSource.getRepository(Expense);
+  const budgetRepo = AppDataSource.getRepository(Budget);
+  const recurringRepo = AppDataSource.getRepository(RecurringExpense);
+
+  const currentMonth = currentMonthKey();
+  const currentRange = monthRange(currentMonth);
+  const startWindow = new Date();
+  startWindow.setMonth(startWindow.getMonth() - 5, 1);
+  const startDate = `${startWindow.getFullYear()}-${`${startWindow.getMonth() + 1}`.padStart(2, '0')}-01`;
+
+  const expenses = await expenseRepo.find({
+    where: { user: { id: userId }, expenseDate: Between(startDate, currentRange.endDate) },
+    relations: { category: true },
+    order: { expenseDate: 'ASC' }
+  });
+  const budgets = await budgetRepo.find({ where: { user: { id: userId }, month: currentMonth }, relations: { category: true } });
+  const recurring = await recurringRepo.find({ where: { user: { id: userId }, isActive: true }, relations: { category: true }, order: { nextRunDate: 'ASC' } });
+
+  const months = new Map<string, { label: string; actual: number; budget: number }>();
+  for (let offset = 5; offset >= 0; offset -= 1) {
+    const date = new Date();
+    date.setMonth(date.getMonth() - offset, 1);
+    const key = `${date.getFullYear()}-${`${date.getMonth() + 1}`.padStart(2, '0')}`;
+    months.set(key, { label: key, actual: 0, budget: 0 });
+  }
+
+  for (const expense of expenses) {
+    const month = expense.expenseDate.slice(0, 7);
+    const entry = months.get(month);
+    if (entry && expense.status !== 'REJECTED' && expense.status !== 'DRAFT') entry.actual += expense.amount;
+  }
+
+  for (const budget of budgets) {
+    const entry = months.get(budget.month);
+    if (entry) entry.budget += budget.amount;
+  }
+
+  const duplicateCount = expenses.filter((expense) => expense.possibleDuplicate && expense.duplicateStatus === 'OPEN' && expense.expenseDate.startsWith(currentMonth)).length;
+  const currentMonthExpenses = expenses.filter((expense) => expense.expenseDate.startsWith(currentMonth));
+  const actualCurrent = currentMonthExpenses
+    .filter((expense) => expense.status !== 'REJECTED' && expense.status !== 'DRAFT')
+    .reduce((sum, expense) => sum + expense.amount, 0);
+  const pendingApproval = currentMonthExpenses.filter((expense) => expense.status === 'PENDING').length;
+  const upcomingRecurring = recurring
+    .filter((item) => item.nextRunDate >= currentRange.startDate && item.nextRunDate <= currentRange.endDate)
+    .map((item) => ({ id: item.id, title: item.title, amount: item.amount, nextRunDate: item.nextRunDate, frequency: item.frequency }));
+
+  const totalBudget = budgets.reduce((sum, item) => sum + item.amount, 0);
+  const budgetUsagePercent = totalBudget ? Number(((actualCurrent / totalBudget) * 100).toFixed(1)) : 0;
+  const alerts = budgets
+    .map((budget) => {
+      const spent = currentMonthExpenses
+        .filter((expense) => expense.status !== 'REJECTED' && expense.status !== 'DRAFT')
+        .filter((expense) => !budget.category || expense.category.id === budget.category.id)
+        .reduce((sum, expense) => sum + expense.amount, 0);
+      const usagePercent = budget.amount ? Number(((spent / budget.amount) * 100).toFixed(1)) : 0;
+      return { id: budget.id, name: budget.name || budget.category?.name || 'Monthly budget', usagePercent, spent: Number(spent.toFixed(2)), amount: budget.amount };
+    })
+    .filter((item) => item.usagePercent >= 80)
+    .sort((a, b) => b.usagePercent - a.usagePercent);
+
+  const statusSummary = aggregateStatistics(
+    currentMonthExpenses.map((expense) => ({
+      id: expense.id,
+      amount: expense.amount,
+      expenseDate: expense.expenseDate,
+      categoryId: expense.category.id,
+      categoryName: expense.category.name,
+      tags: expense.tags ?? [],
+      status: expense.status
+    }))
+  ).byStatus;
+
+  return {
+    currentMonth,
+    actualCurrent: Number(actualCurrent.toFixed(2)),
+    totalBudget: Number(totalBudget.toFixed(2)),
+    budgetUsagePercent,
+    duplicateCount,
+    pendingApproval,
+    forecastCurrentMonth: Number((actualCurrent + upcomingRecurring.reduce((sum, item) => sum + item.amount, 0)).toFixed(2)),
+    trend: [...months.values()].map((item) => ({ label: item.label, actual: Number(item.actual.toFixed(2)), budget: Number(item.budget.toFixed(2)) })),
+    alerts,
+    upcomingRecurring,
+    statusSummary
+  };
 };