cppexam_1_3

#define _CRT_SECURE_NO_WARNINGS

#include <iostream>
#include <fstream>
#include <vector>
#include <string>
#include <ctime>
#include <algorithm>
#include <windows.h>

using namespace std;

struct Transaction {
    string category;
    double amount;
};

struct ExpenseCategory {
    string category;
    double totalAmount;
};

bool compareExpenses(const Transaction& a, const Transaction& b) {
    return a.amount > b.amount;
}

bool compareExpenseCategories(const ExpenseCategory& a, const ExpenseCategory& b) {
    return a.totalAmount > b.totalAmount;
}

class PersonalFinanceManager {
private:
    vector<double> wallets;
    vector<Transaction> transactions;

public:
    void addWallet(double initialAmount) {
        wallets.push_back(initialAmount);
    }

    void deposit(int walletIndex, double amount) {
        wallets[walletIndex] += amount;
    }

    void addExpense(const string& category, double amount) {
        Transaction transaction;
        transaction.category = category;
        transaction.amount = amount;
        transactions.push_back(transaction);
    }

    void generateReports() {
        time_t now = time(nullptr);
        tm* currentDate = localtime(&now);

        ofstream file;

        if (currentDate->tm_mday < 10 && (currentDate->tm_mon + 1) < 10 ) {
            string filename = "reports_" +
                              to_string(currentDate->tm_mday) +
                              to_string(currentDate->tm_mon + 1) +
                              to_string(currentDate->tm_year + 1900) +
                              ".txt";
            file.open(filename);
        }

        // Generate daily report
        file << "Отчёт за день (" << currentDate->tm_mday << "." << currentDate->tm_mon + 1 << "." << currentDate->tm_year + 1900 << "):\n";
        double totalExpenses = 0.0;
        for (const auto& transaction : transactions) {
            totalExpenses += transaction.amount;
        }
        file << "Всего затрат: " << totalExpenses << "\n\n";

        // Generate weekly report
        file << "Отчёт за неделю:\n";
        double totalExpensesWeek = 0.0;
        for (const auto& transaction : transactions) {
            totalExpensesWeek += transaction.amount;
        }
        file << "Всего затрат: " << totalExpensesWeek << "\n";

        // Top 3 expenses of the week
        sort(transactions.begin(), transactions.end(), compareExpenses);
        file << "Топ 3 затрат:\n";
        for (int i = 0; i < 3 && i < transactions.size(); ++i) {
            file << i + 1 << ". Категория: " << transactions[i].category << ", Сумма: " << transactions[i].amount << "\n";
        }
        file << "\n";

        // Top 3 expense categories of the week
        vector<ExpenseCategory> expenseCategories;
        for (const auto& transaction : transactions) {
            auto it = find_if(expenseCategories.begin(), expenseCategories.end(), [&](const ExpenseCategory& ec) {
                return ec.category == transaction.category;
            });
            if (it != expenseCategories.end()) {
                it->totalAmount += transaction.amount;
            } else {
                ExpenseCategory ec;
                ec.category = transaction.category;
                ec.totalAmount = transaction.amount;
                expenseCategories.push_back(ec);
            }
        }
        sort(expenseCategories.begin(), expenseCategories.end(), compareExpenseCategories);
        file << "Топ 3 затратных категорий:\n";
        for (int i = 0; i < 3 && i < expenseCategories.size(); ++i) {
            file << i + 1 << ". Категория: " << expenseCategories[i].category << ", Сумма: " << expenseCategories[i].totalAmount << "\n";
        }
        file << "\n";

        // Generate monthly report
        file << "Отчёт за месяц (" << currentDate->tm_mon + 1 << "." << currentDate->tm_year + 1900 << "):\n";
        double totalExpensesMonth = 0.0;
        for (const auto& transaction : transactions) {
            totalExpensesMonth += transaction.amount;
        }
        file << "Всего затрат: " << totalExpensesMonth << "\n\n";

        // Top 3 expenses of the month
        file << "Топ 3 затратных категорий за месяц:\n";
        sort(transactions.begin(), transactions.end(), compareExpenses);
        for (int i = 0; i < 3 && i < transactions.size(); ++i) {
            file << i + 1 << ". Категория: " << transactions[i].category << ", Сумма: " << transactions[i].amount << "\n";
        }
        file << "\n";

        // Top 3 expenses of the month
        file << "Топ 3 затрат за месяц:\n";
        for (int i = 0; i < 3 && i < transactions.size(); ++i) {
            file << i + 1 << ". Категория: " << transactions[i].category << ", Сумма: " << transactions[i].amount << "\n";
        }
        file << "\n";

        // Top 3 expense categories of the month
        file << "Топ 3 категорий за месяц:\n";
        sort(expenseCategories.begin(), expenseCategories.end(), compareExpenseCategories);
        for (int i = 0; i < 3 && i < expenseCategories.size(); ++i) {
            file << i + 1 << ". Категория: " << expenseCategories[i].category << ", Сумма: " << expenseCategories[i].totalAmount << "\n";
        }
        file << "\n";

        // Close the file
        file.close();
    }
};

int main() {
    SetConsoleCP(1251);
    SetConsoleOutputCP(1251);

    PersonalFinanceManager manager;

    // Add wallets
    manager.addWallet(1000.0);
    manager.addWallet(500.0);

    // Deposit into wallets
    manager.deposit(0, 200.0);
    manager.deposit(1, 100.0);

    // Add expenses
    manager.addExpense("Еда", 50.0);
    manager.addExpense("Транспорт", 20.0);
    manager.addExpense("Одежда", 100.0);
    manager.addExpense("Аренда", 500.0);
    manager.addExpense("Инструменты", 80.0);
    manager.addExpense("Развлечения", 60.0);
    manager.addExpense("Еда", 30.0);
    manager.addExpense("Одежда", 200.0);

    // Generate reports
    manager.generateReports();

    return 0;
}